The main trunk of the systemic arteries.
The portion of the descending aorta proceeding from the arch of the aorta and extending to the DIAPHRAGM, eventually connecting to the ABDOMINAL AORTA.
The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries.
Pathological processes involving any part of the AORTA.
A birth defect characterized by the narrowing of the AORTA that can be of varying degree and at any point from the transverse arch to the iliac bifurcation. Aortic coarctation causes arterial HYPERTENSION before the point of narrowing and arterial HYPOTENSION beyond the narrowed portion.
An abnormal balloon- or sac-like dilatation in the wall of AORTA.
Radiographic visualization of the aorta and its branches by injection of contrast media, using percutaneous puncture or catheterization procedures.
The nonstriated involuntary muscle tissue of blood vessels.
An abnormal balloon- or sac-like dilatation in the wall of the THORACIC AORTA. This proximal descending portion of aorta gives rise to the visceral and the parietal branches above the aortic hiatus at the diaphragm.
Thickening and loss of elasticity of the walls of ARTERIES of all sizes. There are many forms classified by the types of lesions and arteries involved, such as ATHEROSCLEROSIS with fatty lesions in the ARTERIAL INTIMA of medium and large muscular arteries.
Aneurysm caused by a tear in the TUNICA INTIMA of a blood vessel leading to interstitial HEMORRHAGE, and splitting (dissecting) of the vessel wall, often involving the AORTA. Dissection between the intima and media causes luminal occlusion. Dissection at the media, or between the media and the outer adventitia causes aneurismal dilation.
Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.
Surgical insertion of BLOOD VESSEL PROSTHESES to repair injured or diseased blood vessels.
The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.
The tearing or bursting of the wall along any portion of the AORTA, such as thoracic or abdominal. It may result from the rupture of an aneurysm or it may be due to TRAUMA.
An abnormal balloon- or sac-like dilatation in the wall of the ABDOMINAL AORTA which gives rise to the visceral, the parietal, and the terminal (iliac) branches below the aortic hiatus at the diaphragm.
Device constructed of either synthetic or biological material that is used for the repair of injured or diseased blood vessels.
The physiological widening of BLOOD VESSELS by relaxing the underlying VASCULAR SMOOTH MUSCLE.
The physiological narrowing of BLOOD VESSELS by contraction of the VASCULAR SMOOTH MUSCLE.
An alpha-1 adrenergic agonist used as a mydriatic, nasal decongestant, and cardiotonic agent.
Drugs used to cause constriction of the blood vessels.
Inflammation of the wall of the AORTA.
Aneurysm due to growth of microorganisms in the arterial wall, or infection arising within preexisting arteriosclerotic aneurysms.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
Drugs used to cause dilation of the blood vessels.
A thickening and loss of elasticity of the walls of ARTERIES that occurs with formation of ATHEROSCLEROTIC PLAQUES within the ARTERIAL INTIMA.
Polyester polymers formed from terephthalic acid or its esters and ethylene glycol. They can be formed into tapes, films or pulled into fibers that are pressed into meshes or woven into fabrics.
The vessels carrying blood away from the heart.
A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.
That phase of a muscle twitch during which a muscle returns to a resting position.
A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.
The condition of an anatomical structure's being dilated beyond normal dimensions.
An autosomal dominant disorder of CONNECTIVE TISSUE with abnormal features in the heart, the eye, and the skeleton. Cardiovascular manifestations include MITRAL VALVE PROLAPSE, dilation of the AORTA, and aortic dissection. Other features include lens displacement (ectopia lentis), disproportioned long limbs and enlarged DURA MATER (dural ectasia). Marfan syndrome is associated with mutations in the gene encoding fibrillin, a major element of extracellular microfibrils of connective tissue.
A diet that contributes to the development and acceleration of ATHEROGENESIS.
A neurotransmitter found at neuromuscular junctions, autonomic ganglia, parasympathetic effector junctions, a subset of sympathetic effector junctions, and at many sites in the central nervous system.
The inferior and superior venae cavae.
A free radical gas produced endogenously by a variety of mammalian cells, synthesized from ARGININE by NITRIC OXIDE SYNTHASE. Nitric oxide is one of the ENDOTHELIUM-DEPENDENT RELAXING FACTORS released by the vascular endothelium and mediates VASODILATION. It also inhibits platelet aggregation, induces disaggregation of aggregated platelets, and inhibits platelet adhesion to the vascular endothelium. Nitric oxide activates cytosolic GUANYLATE CYCLASE and thus elevates intracellular levels of CYCLIC GMP.
A strain of Rattus norvegicus used as a normotensive control for the spontaneous hypertensive rats (SHR).
A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.
Not an aneurysm but a well-defined collection of blood and CONNECTIVE TISSUE outside the wall of a blood vessel or the heart. It is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. False aneurysm is formed by organized THROMBUS and HEMATOMA in surrounding tissue.
Either of two large arteries originating from the abdominal aorta; they supply blood to the pelvis, abdominal wall and legs.
A strain of Rattus norvegicus with elevated blood pressure used as a model for studying hypertension and stroke.
Persistently high systemic arterial BLOOD PRESSURE. Based on multiple readings (BLOOD PRESSURE DETERMINATION), hypertension is currently defined as when SYSTOLIC PRESSURE is consistently greater than 140 mm Hg or when DIASTOLIC PRESSURE is consistently 90 mm Hg or more.
Elements of limited time intervals, contributing to particular results or situations.
The valve between the left ventricle and the ascending aorta which prevents backflow into the left ventricle.
Cholesterol present in food, especially in animal products.
The relationship between the dose of an administered drug and the response of the organism to the drug.
Precursor of epinephrine that is secreted by the adrenal medulla and is a widespread central and autonomic neurotransmitter. Norepinephrine is the principal transmitter of most postganglionic sympathetic fibers and of the diffuse projection system in the brain arising from the locus ceruleus. It is also found in plants and is used pharmacologically as a sympathomimetic.
A class of protein components which can be found in several lipoproteins including HIGH-DENSITY LIPOPROTEINS; VERY-LOW-DENSITY LIPOPROTEINS; and CHYLOMICRONS. Synthesized in most organs, Apo E is important in the global transport of lipids and cholesterol throughout the body. Apo E is also a ligand for LDL receptors (RECEPTORS, LDL) that mediates the binding, internalization, and catabolism of lipoprotein particles in cells. There are several allelic isoforms (such as E2, E3, and E4). Deficiency or defects in Apo E are causes of HYPERLIPOPROTEINEMIA TYPE III.
Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side.
A powerful vasodilator used in emergencies to lower blood pressure or to improve cardiac function. It is also an indicator for free sulfhydryl groups in proteins.
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
A CALCIUM-dependent, constitutively-expressed form of nitric oxide synthase found primarily in ENDOTHELIAL CELLS.
A layer of epithelium that lines the heart, blood vessels (ENDOTHELIUM, VASCULAR), lymph vessels (ENDOTHELIUM, LYMPHATIC), and the serous cavities of the body.
Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.
Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues using a transducer placed in the esophagus.
Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.
A chronic inflammatory process that affects the AORTA and its primary branches, such as the brachiocephalic artery (BRACHIOCEPHALIC TRUNK) and CAROTID ARTERIES. It results in progressive arterial stenosis, occlusion, and aneurysm formation. The pulse in the arm is hard to detect. Patients with aortitis syndrome often exhibit retinopathy.
An NADPH-dependent enzyme that catalyzes the conversion of L-ARGININE and OXYGEN to produce CITRULLINE and NITRIC OXIDE.
The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs.
Resistance and recovery from distortion of shape.
Artery arising from the brachiocephalic trunk on the right side and from the arch of the aorta on the left side. It distributes to the neck, thoracic wall, spinal cord, brain, meninges, and upper limb.
An octapeptide that is a potent but labile vasoconstrictor. It is produced from angiotensin I after the removal of two amino acids at the C-terminal by ANGIOTENSIN CONVERTING ENZYME. The amino acid in position 5 varies in different species. To block VASOCONSTRICTION and HYPERTENSION effect of angiotensin II, patients are often treated with ACE INHIBITORS or with ANGIOTENSIN II TYPE 1 RECEPTOR BLOCKERS.
The act of constricting.
A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.
Guanosine cyclic 3',5'-(hydrogen phosphate). A guanine nucleotide containing one phosphate group which is esterified to the sugar moiety in both the 3'- and 5'-positions. It is a cellular regulatory agent and has been described as a second messenger. Its levels increase in response to a variety of hormones, including acetylcholine, insulin, and oxytocin and it has been found to activate specific protein kinases. (From Merck Index, 11th ed)
Arteries which arise from the abdominal aorta and distribute to most of the intestines.
Connective tissue comprised chiefly of elastic fibers. Elastic fibers have two components: ELASTIN and MICROFIBRILS.
The first and largest artery branching from the aortic arch. It distributes blood to the right side of the head and neck and to the right arm.
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
Pathologic deposition of calcium salts in tissues.
The main artery of the thigh, a continuation of the external iliac artery.
A non-selective inhibitor of nitric oxide synthase. It has been used experimentally to induce hypertension.
The plan and delineation of prostheses in general or a specific prosthesis.
Operative procedures for the treatment of vascular disorders.
Pathological condition characterized by the backflow of blood from the ASCENDING AORTA back into the LEFT VENTRICLE, leading to regurgitation. It is caused by diseases of the AORTIC VALVE or its surrounding tissue (aortic root).
The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils.
Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins).
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
Conditions resulting from abnormalities in the arteries branching from the ASCENDING AORTA, the curved portion of the aorta. These syndromes are results of occlusion or abnormal blood flow to the head-neck or arm region leading to neurological defects and weakness in an arm. These syndromes are associated with vascular malformations; ATHEROSCLEROSIS; TRAUMA; and blood clots.
A compound consisting of dark green crystals or crystalline powder, having a bronze-like luster. Solutions in water or alcohol have a deep blue color. Methylene blue is used as a bacteriologic stain and as an indicator. It inhibits GUANYLATE CYCLASE, and has been used to treat cyanide poisoning and to lower levels of METHEMOGLOBIN.
Strains of mice in which certain GENES of their GENOMES have been disrupted, or "knocked-out". To produce knockouts, using RECOMBINANT DNA technology, the normal DNA sequence of the gene being studied is altered to prevent synthesis of a normal gene product. Cloned cells in which this DNA alteration is successful are then injected into mouse EMBRYOS to produce chimeric mice. The chimeric mice are then bred to yield a strain in which all the cells of the mouse contain the disrupted gene. Knockout mice are used as EXPERIMENTAL ANIMAL MODELS for diseases (DISEASE MODELS, ANIMAL) and to clarify the functions of the genes.
Either of the two principal arteries on both sides of the neck that supply blood to the head and neck; each divides into two branches, the internal carotid artery and the external carotid artery.
A branch of the abdominal aorta which supplies the kidneys, adrenal glands and ureters.
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
Theoretical representations that simulate the behavior or activity of the cardiovascular system, processes, or phenomena; includes the use of mathematical equations, computers and other electronic equipment.
The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.
Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding.
A condition with abnormally high levels of CHOLESTEROL in the blood. It is defined as a cholesterol value exceeding the 95th percentile for the population.
The innermost layer of an artery or vein, made up of one layer of endothelial cells and supported by an internal elastic lamina.
A stable prostaglandin endoperoxide analog which serves as a thromboxane mimetic. Its actions include mimicking the hydro-osmotic effect of VASOPRESSIN and activation of TYPE C PHOSPHOLIPASES. (From J Pharmacol Exp Ther 1983;224(1): 108-117; Biochem J 1984;222(1):103-110)
A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.
A pathological constriction that can occur above (supravalvular stenosis), below (subvalvular stenosis), or at the AORTIC VALVE. It is characterized by restricted outflow from the LEFT VENTRICLE into the AORTA.
Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.
The arterial trunk that arises from the abdominal aorta and after a short course divides into the left gastric, common hepatic and splenic arteries.
Non-striated, elongated, spindle-shaped cells found lining the digestive tract, uterus, and blood vessels. They are derived from specialized myoblasts (MYOBLASTS, SMOOTH MUSCLE).
A non-steroidal anti-inflammatory agent (NSAID) that inhibits the enzyme cyclooxygenase necessary for the formation of prostaglandins and other autacoids. It also inhibits the motility of polymorphonuclear leukocytes.
Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).
Radiography of blood vessels after injection of a contrast medium.
A lesion on the surface of the skin or a mucous surface, produced by the sloughing of inflammatory necrotic tissue.
Severe or complete loss of motor function in the lower extremities and lower portions of the trunk. This condition is most often associated with SPINAL CORD DISEASES, although BRAIN DISEASES; PERIPHERAL NERVOUS SYSTEM DISEASES; NEUROMUSCULAR DISEASES; and MUSCULAR DISEASES may also cause bilateral leg weakness.
Rhythmic, intermittent propagation of a fluid through a BLOOD VESSEL or piping system, in contrast to constant, smooth propagation, which produces laminar flow.
A fetal blood vessel connecting the pulmonary artery with the descending aorta.
A technique to arrest the flow of blood by lowering BODY TEMPERATURE to about 20 degrees Centigrade, usually achieved by infusing chilled perfusate. The technique provides a bloodless surgical field for complex surgeries.
Minimally invasive procedures, diagnostic or therapeutic, performed within the BLOOD VESSELS. They may be perfomed via ANGIOSCOPY; INTERVENTIONAL MAGNETIC RESONANCE IMAGING; INTERVENTIONAL RADIOGRAPHY; or INTERVENTIONAL ULTRASONOGRAPHY.
A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.
Reduced blood flow to the spinal cord which is supplied by the anterior spinal artery and the paired posterior spinal arteries. This condition may be associated with ARTERIOSCLEROSIS, trauma, emboli, diseases of the aorta, and other disorders. Prolonged ischemia may lead to INFARCTION of spinal cord tissue.
Surgical incision into the chest wall.
A rare amino acid found in elastin, formed by condensation of four molecules of lysine into a pyridinium ring.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.
Compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction.
Cell surface proteins that bind THROMBOXANES with high affinity and trigger intracellular changes influencing the behavior of cells. Some thromboxane receptors act via the inositol phosphate and diacylglycerol second messenger systems.
Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.
The veins and arteries of the HEART.
The middle layer of blood vessel walls, composed principally of thin, cylindrical, smooth muscle cells and elastic tissue. It accounts for the bulk of the wall of most arteries. The smooth muscle cells are arranged in circular layers around the vessel, and the thickness of the coat varies with the size of the vessel.
The dilatation of the aortic wall behind each of the cusps of the aortic valve.
Diversion of the flow of blood from the entrance of the right atrium directly to the aorta (or femoral artery) via an oxygenator thus bypassing both the heart and lungs.
Pathological processes which result in the partial or complete obstruction of ARTERIES. They are characterized by greatly reduced or absence of blood flow through these vessels. They are also known as arterial insufficiency.
A large vessel supplying the whole length of the small intestine except the superior part of the duodenum. It also supplies the cecum and the ascending part of the colon and about half the transverse part of the colon. It arises from the anterior surface of the aorta below the celiac artery at the level of the first lumbar vertebra.
The flow of BLOOD through or around an organ or region of the body.
A subclass of alpha-adrenergic receptors that mediate contraction of SMOOTH MUSCLE in a variety of tissues such as ARTERIOLES; VEINS; and the UTERUS. They are usually found on postsynaptic membranes and signal through GQ-G11 G-PROTEINS.
A steroid metabolite that is the 11-deoxy derivative of CORTICOSTERONE and the 21-hydroxy derivative of PROGESTERONE.
Drugs that bind to but do not activate alpha-adrenergic receptors thereby blocking the actions of endogenous or exogenous adrenergic agonists. Adrenergic alpha-antagonists are used in the treatment of hypertension, vasospasm, peripheral vascular disease, shock, and pheochromocytoma.
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
A prostaglandin that is a powerful vasodilator and inhibits platelet aggregation. It is biosynthesized enzymatically from PROSTAGLANDIN ENDOPEROXIDES in human vascular tissue. The sodium salt has been also used to treat primary pulmonary hypertension (HYPERTENSION, PULMONARY).
The venous trunk which receives blood from the lower extremities and from the pelvic and abdominal organs.
A volatile vasodilator which relieves ANGINA PECTORIS by stimulating GUANYLATE CYCLASE and lowering cytosolic calcium. It is also sometimes used for TOCOLYSIS and explosives.
Pathologic processes that affect patients after a surgical procedure. They may or may not be related to the disease for which the surgery was done, and they may or may not be direct results of the surgery.
An inhibitor of nitric oxide synthetase which has been shown to prevent glutamate toxicity. Nitroarginine has been experimentally tested for its ability to prevent ammonia toxicity and ammonia-induced alterations in brain energy and ammonia metabolites. (Neurochem Res 1995:200(4):451-6)
Created as a republic in 1918 by Czechs and Slovaks from territories formerly part of the Austro-Hungarian Empire. The country split into the Czech Republic and Slovakia 1 January 1993.

Investigation of distal aortic compliance and vasodilator responsiveness in heart failure due to proximal aortic stenosis in the guinea pig. (1/1846)

Hypotension and syncope are recognized features of chronic aortic stenosis. This study examined vasomotor responses and dynamic compliance in isolated abdominal aortae after chronic constriction of the ascending aorta. Guinea pigs underwent constriction of the ascending aorta or sham operation. Sections of descending aorta were removed for studies of contractile performance and compliance. Dynamic compliance was measured using a feedback-controlled pulsatile pressure system at frequencies of 0.5, 1.5 and 2.5 Hz and mean pressures from 40 to 100 mmHg. Chronic (149+/-6 days) aortic constriction resulted in significant increases in organ weight/body weight ratios for left ventricle (58%), right ventricle (100%) and lung (61%). The presence of heart failure was indicated by increased lung weights, left ventricular end-diastolic pressure and systemic vascular resistance, reduced cardiac output and increased levels of plasma atrial natriuretic peptide (166%), adrenaline (x20), noradrenaline (106%) and dopamine (x3). Aortic rings showed similar constrictor responses to phenylephrine and angiotensin II, but maximal vasodilator responses to acetylcholine and isoprenaline were significantly increased (144% and 48% respectively). Dilator responses to sodium nitroprusside, forskolin and cromokalim were unchanged. Compliance of all vessels decreased with increasing pulsatile frequency and to a lesser extent with increased mean pressure, but were similar in aortic-constricted and control groups. Chronic constriction of the ascending aorta resulted in heart failure and increased vasodilator responses to acetylcholine and isoprenaline in the distal aorta while dynamic compliance was unchanged. We hypothesize that increased endothelium-mediated vasodilatation may contribute to hypotension and syncope in patients with left ventricular outflow obstruction.  (+info)

Development of atherosclerotic lesions in cholesterol-loaded rabbits. (2/1846)

To examine both of the target vessels and the optimal time of their endothelial denudation to study vascular restenosis after balloon injury in cholesterol-loaded rabbits, we made 36 atherosclerotic rabbits by feeding a hypercholesterol diet, and histologically examined the onset time and the development of atherosclerosis. Atheromatous changes were observed first after the 5th week in the thoracic aorta from the start of the diet, and then extended to the abdominal aorta, coronary artery with time. The atherosclerotic lesions in the thoracic aorta and the proximal portion of the coronary artery showed high-grade concentric intimal thickening with luminal stenosis. The abdominal aortic lesion mildly progressed. In the renal, carotid and femoral arteries, in contrast, slight atheroscleromatous changes developed during the diet period. These results suggest that the thoracic and abdominal aortas and the coronary artery would be suitable as target vessels to study vascular restenosis after balloon injury, and the endothelial denudation of these vessels should be performed between the 8th and 15th week in this diet protocol for an accurate analysis.  (+info)

Regression of atherosclerosis: role of nitric oxide and apoptosis. (3/1846)

BACKGROUND: We have recently found that administration of L-arginine to hypercholesterolemic rabbits induces regression of preexisting lesions. Others have previously shown that activation of the L-arginine/nitric oxide (NO) synthase pathway can induce apoptosis of vascular cells in vitro. Accordingly, the current study was designed to determine if dietary supplementation of L-arginine induces apoptosis of intimal lesions and if this effect is mediated through the NO synthase pathway. METHODS AND RESULTS: Male New Zealand White rabbits were fed a 0.5% cholesterol diet for 10 weeks and subsequently placed on 2.5% L-arginine HCl in the drinking water, and the cholesterol diet was continued for 2 weeks, at which time the aortas were harvested for histological studies. L-Arginine treatment increased the number of apoptotic cells (largely macrophages) in the intimal lesions by 3-fold (11.9+/-3.9 vs 3.9+/-1. 4 apoptotic cells/mm2, P<0.01). In subsequent studies, aortas were harvested for ex vivo studies. Aortic segments were incubated in cell culture medium for 4 to 24 hours with modulators of the NO synthase pathway. The tissues were then collected for histological studies and the conditioned medium collected for measurement of nitrogen oxides by chemiluminescence. Addition of sodium nitroprusside (10(-5) mol/L) to the medium caused a time-dependent increase in apoptosis of vascular cells (largely macrophages) in the intimal lesion. L-Arginine (10(-3) mol/L) had an identical effect on apoptosis, which was associated with an increase in nitrogen oxides released into the medium. These effects were not mimicked by D-arginine, and they were antagonized by the NO synthase inhibitor L-nitro-arginine (10(-4) mol/L). The effect of L-arginine was not influenced by an antagonist of cGMP-dependent protein kinase, nor was the effect mimicked by the agonist of protein kinase G or 8-BR cGMP. CONCLUSIONS: These results indicate that supplemental L-arginine induces apoptosis of macrophages in intimal lesions by its metabolism to NO, which acts through a cGMP-independent pathway. These studies are consistent with our previous observation that supplementation of dietary arginine induces regression of atheroma in this animal model. These studies provide a rationale for further investigation of the therapeutic potential of manipulating the NO synthase pathway in atherosclerosis.  (+info)

The value of late computed tomographic scanning in identification of vascular abnormalities after abdominal aortic aneurysm repair. (4/1846)

PURPOSE: The purpose of this study was to determine the prevalence of late arterial abnormalities after aortic aneurysm repair and thus to suggest a routine for postoperative radiologic follow-up examination and to establish reference criteria for endovascular repair. METHODS: Computed tomographic (CT) scan follow-up examination was obtained at 8 to 9 years after abdominal aortic aneurysm (AAA) repair on a cohort of patients enrolled in the Canadian Aneurysm Study. The original registry consisted of 680 patients who underwent repair of nonruptured AAA. When the request for CT scan follow-up examination was sent in 1994, 251 patients were alive and potentially available for CT scan follow-up examination and 94 patients agreed to undergo abdominal and thoracic CT scanning procedures. Each scan was interpreted independently by two vascular radiologists. RESULTS: For analysis, the aorta was divided into five defined segments and an aneurysm was defined as a more than 50% enlargement from the expected normal value as defined in the reporting standards for aneurysms. With this strict definition, 64.9% of patients had aneurysmal dilatation and the abnormality was considered as a possible indication for surgical repair in 13.8%. Of the 39 patients who underwent initial repair with a tube graft, 12 (30.8%) were found to have an iliac aneurysm and six of these aneurysms (15.4%) were of possible surgical significance. Graft dilatation was observed from the time of operation (median graft size of 18 mm) to a median size of 22 mm as measured by means of CT scanning at follow-up examination. Fluid or thrombus was seen around the graft in 28% of the cases, and bowel was believed to be intimately associated with the graft in 7%. CONCLUSION: Late follow-up CT scans after AAA repair often show vascular abnormalities. Most of these abnormalities are not clinically significant, but, in 13.8% of patients, the thoracic or abdominal aortic segment was aneurysmal and, in 15.4% of patients who underwent tube graft placement, one of the iliac arteries was significantly abnormal to warrant consideration for surgical repair. On the basis of these findings, a routine CT follow-up examination after 5 years is recommended. This study provides a population-based study for comparison with the results of endovascular repair.  (+info)

Suppression of experimental abdominal aortic aneurysms by systemic treatment with a hydroxamate-based matrix metalloproteinase inhibitor (RS 132908). (5/1846)

BACKGROUND: Abdominal aortic aneurysms (AAAs) are associated with chronic inflammation, disruption of medial elastin, and increased local production of elastolytic matrix metalloproteinases (MMPs). The purpose of this study was to investigate how treatment with a hydroxamate-based MMP antagonist (RS 132908) might affect the development of experimental AAAs. METHODS: Male Wistar rats underwent intraluminal perfusion of the abdominal aorta with 50 units of porcine pancreatic elastase followed by treatment for 14 days with RS 132908 (100 mg/kg/day subcutaneously; n = 8) or with vehicle alone (n = 6). The external aortic diameter (AD) was measured in millimeters before elastase perfusion and at death, with AAA defined as an increase in AD (DeltaAD) of at least 100%. Aortic wall elastin and collagen concentrations were measured with assays for desmosine and hydroxyproline, and fixed aortic tissues were examined by light microscopy. RESULTS: AAAs developed in all vehicle-treated rats, with a mean AD (+/- SE) that increased from 1.60 +/- 0.03 mm before perfusion to 5.98 +/- 1.02 mm on day 14 (DeltaAD = 276.4 +/- 67.7%). AAAs developed in only five of eight animals (62.5%) after MMP inhibition, with a mean AD that increased from 1.56 +/- 0.05 mm to 3.59 +/- 0.34 mm (DeltaAD = 128.1 +/- 18.7%; P <.05, vs vehicle). The overall inhibition of aortic dilatation attributable to RS 132908 was 53.6 +/- 6.8%. Aortic wall desmosine fell by 85.4% in the vehicle-treated rats (1210.6 +/- 87.8 pmol/sample to 176.7 +/- 33.4 pmol/sample; P <.05) but only by 65.6% in the animals treated with RS 312908 (416.2 +/- 120.5 pmol/sample). In contrast, hydroxyproline was not significantly affected by either elastase perfusion or drug treatment. Microscopic examination revealed the preservation of pericellular elastin and a greater degree of fibrocollagenous wall thickening after MMP inhibition, with no detectable difference in the extent of inflammation. CONCLUSIONS: Systemic MMP inhibition suppresses aneurysmal dilatation in the elastase-induced rodent model of AAA. Consistent with its direct inhibitory effect on various MMPs, RS 132908 promotes the preservation of aortic elastin and appears to enhance a profibrotic response within the aortic wall. Hydroxamate-based MMP antagonists may therefore be useful in the development of pharmacologic approaches to the suppression of AAAs.  (+info)

Experimental assessment of proximal stent-graft (InterVascular) fixation in human cadaveric infrarenal aortas. (6/1846)

OBJECTIVES: This paper investigates the radial deformation load of an aortic endoluminal prosthesis and determines the longitudinal load required to cause migration in a human cadaveric aorta of the endoprosthesis. DESIGN AND METHODS: The endovascular prosthesis under investigation was a 24 mm diameter, nitinol, self-expanding aortoaortic device (InterVascular, Clearwater, Florida, U.S.A.). Initially, a motorised digital force gauge developed an incremental load which was applied to the ends of five stent-grafts, to a maximum of 10 mm (42%) compression. Secondly, using a simple bench model, each ends of four stent-grafts were deployed into 10 cadaveric experimental aneurysm necks and a longitudinal load applied to effect distraction. RESULTS: Increasing load produced increasing percentage deformation of the stent-grafts. The mean longitudinal distraction load for an aneurysm neck of 20 mm was 409 g (200-480 g), for 15 mm was 277 g (130-410 g) and for 10 mm was 218 g (130-340 g). The aneurysm diameter and aortic calcification had p values of 0.002 and 0.047, respectively, while the p value for aneurysm neck length was less than 0.00001. CONCLUSIONS: These results suggest that there is a theoretical advantage of oversizing an aortic prosthesis and that sufficient anchorage is achieved in an aortic neck of 10 mm to prevent migration when fully deployed.  (+info)

Expression of interleukin-10 in advanced human atherosclerotic plaques: relation to inducible nitric oxide synthase expression and cell death. (7/1846)

Inflammation is a major feature of human atherosclerosis and is central to development and progression of the disease. A variety of proinflammatory cytokines are expressed in the atherosclerotic plaque and may modulate extracellular matrix remodeling, cell proliferation, and cell death. Little is known, however, about the expression and potential role of anti-inflammatory cytokines in human atherosclerosis. Interleukin-10 (IL-10) is a major anti-inflammatory cytokine whose expression and potential effects in advanced human atherosclerotic plaques have not been evaluated. We studied 21 advanced human atherosclerotic plaques. IL-10 expression was analyzed by use of reverse transcription-polymerase chain reaction and immunohistochemical techniques. Inducible nitric oxide synthase expression was assessed by using immunohistochemistry, and cell death was determined by use of the TUNEL method. Reverse transcription-polymerase chain reaction identified IL-10 mRNA in 12 of 17 atherosclerotic plaques. Immunohistochemical staining of serial sections and double staining identified immunoreactive IL-10 mainly in macrophages, as well as in smooth muscle cells. Consistent with its anti-inflammatory properties, high levels of IL-10 expression were associated with significant decrease in inducible nitric oxide synthase expression (P<0.0001) and cell death (P<0. 0001). Hence, IL-10, a potent anti-inflammatory cytokine, is expressed in a substantial number of advanced human atherosclerotic plaques and might contribute to the modulation of the local inflammatory response and protect from excessive cell death in the plaque.  (+info)

Rat sarcoma model supports both "soil seed" and "mechanical" theories of metastatic spread. (8/1846)

Following injection into the portal venous or vena caval systems, tumour cells are held up almost exclusively in the liver or lung respectively, and subsequent outgrowth of tumour only occurs in these organs. Following systemic arterial injection, cells are distributed, and subsequently grow, in a variety of organs. However, the adrenal gland supports tumour growth from much fewer cells than the lung, and this is partly due to the fact the rate of tumour cell loss in the initial 48 h is very high in the latter compared to the former organ.  (+info)

TY - JOUR. T1 - Age dependency of the biaxial biomechanical behavior of human abdominal aorta. AU - Vande Geest, Jonathan P. AU - Sacks, Michael S.. AU - Vorp, David A.. PY - 2004/12. Y1 - 2004/12. N2 - Background: The biomechanical behavior of the human abdominal aorta has been studied with great interest primarily due to its propensity to develop such maladies as atherosclerotic occlusive disease, dissections, and aneurysms. The purpose of this study was to investigate the age-related biaxial biomechanical behavior of human infrarenal aortic tissue. Methods of Approach: A total of 18 samples (13 autopsy, 5 organ donor) were harvested from patients in each of three age groups: Group 1 (,30 years old, n =5), Group 2 (between 30 and 60 years old, n =7), and Group 3 (,60 years old, n =6). Each specimen was tested biaxially using a tension-controlled protocol which spanned a large portion of the strain plane. Response functions fit to experimental data were used as a tool to guide the appropriate ...
OBJECTIVE: To apply a new non-invasive method for quantification of in vivo wall shear stress (WSS) by magnetic resonance (MR) FAcE velocity mapping and measure WSS in the human abdominal aorta. DESIGN: Prospective, open study. MATERIAL: Six voluntee
PubMed journal article Age-related increase in wall stress of the human abdominal aorta: an in vivo stud were found in PRIME PubMed. Download Prime PubMed App to iPhone or iPad.
BACKGROUND: Peripheral arterial disease and vascular calcifications contribute significantly to the outcome of dialysis patients. The aim of this study was to evaluate the prognostic role of severity of abdominal aortic calcifications and peripheral arterial disease on outcome of peritoneal dialysis (PD) patients using methods easily available in everyday clinical practice.. METHODS: We enrolled 249 PD patients (mean age 61 years, 67% male) in this prospective, observational, multicenter study from 2009 to 2013. The abdominal aortic calcification score (AACS) was assessed using lateral lumbar X ray, and the ankle-brachial index (ABI) using a Doppler device.. RESULTS: The median AACS was 11 (range 0 - 24). In 58% of the patients, all 4 segments of the abdominal aorta showed deposits, while 19% of patients had no visible deposits (AACS 0). Ankle-brachial index was normal in 49%, low (, 0.9) in 17%, and high (, 1.3) in 34% of patients. Altogether 91 patients (37%) died during the median follow-up ...
TY - JOUR. T1 - Numerical analyses of the interrelation between extracellular smooth muscle orientation and intracellular filament overlap in the human abdominal aorta. AU - Haspinger, Daniel Ch. AU - Murtada, Sae Il. AU - Niestrawska, Justyna A.. AU - Holzapfel, Gerhard A.. PY - 2018/12/1. Y1 - 2018/12/1. N2 - Smooth muscle cells are one of the functional constituents in the human abdominal aorta, located in the medial layer, forming two helices similar to collagen fibers. During development, angiogenesis and vascular remodeling, smooth muscle cells experience changes in their orientation and a reorganization of their intracellular filament structure. In order to study the so far not so well-known interrelation between smooth muscle orientation and the intracellular filament structure in the human abdominal aorta a recently proposed mechanochemical model is modified. Two families of muscle fibers are introduced with a non-symmetric filament overlap behavior, and the model is implemented into a ...
Title: Propofol and Systemic Inflammatory Response in Abdominal Aortic Surgery. VOLUME: 5 ISSUE: 2. Author(s):Jose M. Rodriguez-Lopez and Francisco S. Lozano. Affiliation:Servicio de Anestesiologia,Hospital Universitario de Salamanca, Paseo de San Vicente, 58-182, 37007,Salamanca, Spain.. Keywords:Propofol, Systemic inflammatory response, Aortic surgery, Aortic cross-clamping. Abstract: Abdominal aortic surgery is relatively common associated with considerable postoperative morbidity and mortality. The aortic cross-clamping for the implantation of a vascular prosthetic graft induces a systemic inflammatory response (SIR) because of an ischemia-reperfusion (IR) injury. In our experimental models we have reported that propofol anesthesia, compared with sevoflurane, after IR modulates SIR and this effect might result in renal protection. ...
1. Vande Geest JP, Di Martino ES, Vorp DA*. An Analysis of the Complete Strain Field within FlexercellTM Membranes, Journal of Biomechanics, 2004 Dec;37(12):1923-8. 2. Vande Geest JP, Sacks MS, Vorp DA*. Age Dependency of the Biaxial Biomechanical Behavior of Human Abdominal Aorta, Journal of Biomechanical Engineering, 2004 Dec:126:815-822. 3. Vorp DA*, Vande Geest JP. Biomechanical Determinants of Abdominal Aortic Aneurysm Rupture, Arteriosclerosis Thrombosis and Vascular Biology, 2005 Aug;25(8):1558-66 (invited review paper). 4. Freytes DO, Rundell AE, Vande Geest JP, Vorp DA, Webster TJ, and Badylak SF*. Analytically Derived Material Properties of Multilaminated Extracellular Matrix Devices using the Ball-burst Test, Biomaterials, 2005 26(27):5518-5531. 5. Vande Geest JP, Sacks MS, Vorp DA*. The Effects of Aneurysm on the Biaxial Mechanical Behavior of Human Abdominal Aorta, Journal of Biomechanics, 2006 39(7):1324-1334. 6.Vande Geest JP, Wang DH, Wisniewski SR, Makaroun MS, Vorp ...
Sigma-Aldrich offers abstracts and full-text articles by [Xianming Su, Xiaowen Zhi, Ting Cui, Qiaowei Zheng, Shixiang Wang, Yongxiao Cao, Changcong Cui, Weiyi Feng].
BACKGROUND: Total occlusion of the infrarenal abdominal aorta is a very rare disease in clinical practice. The clinical outcome may be poor unless management is attempted promptly. Surgical bypass has been recommended as the treatment of choice for these lesions. However, there was relatively high surgical mortality and morbidity associad with aorto-bifemoral bypass graft in patients with other systemic disease, especially coronary artery disease. As a result, the use of, thrombolysis with percutaneous transluminal angioplasty (PTA) has recently been extended to this disease as an alternative method to surgery. PTA is technically simpler with less morbidity and mortality than surgery.We report our experience with thrombolysis and balloon angioplasty of total aortic occlusion in 14 patients between March 1991 and December 1996. METHODS: Fourteen patients, whose mean age was 59+/-13 years (11 male, 3 female), serve as the studys patients. Aortography was introduced via transbrachial artery. The ...
An abdominal aorta scan uses high-frequency sound waves to visualize the abdominal aorta. Using a specialized Doppler technique, we can also measure the movement of blood within the vessels. This provides detailed pictures of these blood vessels to help physicians determine if there is enlargement of the aorta.
The prevalence of diabetes mellitus is increasing worldwide, including the nation of Poland. The aim of this prospective and observational study was to determine risk factors and the predictors of diabetes incidence in elderly women, and to calculate the diabetes incidence ratio in this population. Two-hundred women, aged 65-74, who were non-diabetic at baseline in 2012 were followed for 6.5 years. All women were checked for incident diabetes. In non-diabetic subjects, diagnostic procedures for diabetes were performed according to Polands Diabetes recommendations. Between April 2012 and September 2018, 25 women developed diabetes and the next 11 cases were diagnosed based on FPG or oral glucose tolerance test. Women with incident diabetes had significantly higher baseline FPG, triglycerides (TG), TG/HDL cholesterol ratio and visceral adiposity index (VAI) score, and lower abdominal aorta diameter (AAD), HDL cholesterol and eGFR. In the Cox proportional hazard regression analysis, only AAD | 18 mm and
During an abdominal aorta scan, the mobile technologist uses two types of ultrasound to systematically interrogate the entire length of the abdominal aorta. He
TY - JOUR. T1 - The retroperitoneal, left flank approach to the supraceliac aorta for difficult and repeat aortic reconstructions. AU - Mills, Joseph L. AU - Fujitani, Roy M.. AU - Taylor, Spence M.. PY - 1991. Y1 - 1991. N2 - Between 1986 and 1990, 11 patients with relative or absolute contraindications to standard infrarenal reconstructions underwent supraceliac aortofemoral bypass. The operation was performed through a left-flank incision extended into the eleventh intercostal space with retroperitoneal and extrapleural dissection. Indications included multiple failed infrarenal reconstructions in four patients, previous removal of infected aortofemoral bypass graft with failure of extra-anatomic bypass in five patients, prior para-aortic lymph node dissection and radiotherapy in one patient, and aortic aneurysmal disease proximal to the renal arteries in one patient. Bypass conduits included either a bifurcated Dacron graft or a tube graft to the left femoral artery with a femorofemoral ...
Open aortic surgery is employed for patients who have indications for abdominal aortic aneurysm (AAA) repair but unfavorable anatomy for endovascular aortic repair. Open aortic surgery is also necessary to manage aortic thrombosis or repair of aortic
Visit Vascular Diagnostics for a Fort Myers abdominal aorta exam, which could someday save your life from a life-threatening abdominal aortic aneurysm.
Atherosclerosis of aorta abdominal region arises among the first complications of increased cholesterol level in an organism. Danger of disease is that at initial stages it is practically not distinguished, complaints of the patient are absent. When the state worsens there is an abdominal pain of various intensity that depends on the volume of vessels lesion. There is a feeling of gravity and dyspepsia: appetite loss, excessive flatulency, weight loss.. Development of abdominal aorta atherosclerosis leads to more terrible complications. The most dangerous is aneurysm. This is a uniform bottle-shaped expansion of whole vessel with a thinning of its walls or local protruding aorta wall.. Such patients have nagging pains in stomach; they are localized in the left half of stomach or near umbilicus, sometimes in loin, seldom inguinal area. Pains begin from attack-like usually right after meal, then in two-three hours stop without assistance.. Feeling of pulsation in stomach is a one more diagnostic ...
An abdominal aortic aneurysm can be repaired with endovascular repair or open surgery. Both methods involve placing an artificial graft inside the damaged artery.
An abdominal aortic aneurysm can be repaired with endovascular repair or open surgery. Both methods involve placing an artificial graft inside the damaged artery.
Thoracic aneurysms occur in the aorta, which is the largest artery in the body. It carries blood away from the heart to all parts of the body. The portion of the aorta that runs through the chest cavity nearest the heart is called the thoracic aorta, while the portion running through the abdomen is known as the abdominal aorta. When a weakened area of the thoracic or abdominal aorta expands or bulges, it is known as a thoracic aortic aneurysm (TAA) or abdominal aortic aneurysm (AAA). Roughly 25 percent of aortic aneurysms occur in the thoracic aorta, while 75 percent occur in the abdominal aorta ...
Inferior Phrenic Arteries are paired branches of the abdominal aorta, originating at the level of T12-L2, consisting of two small vessels, which supplies oxygenated blood to the diaphragm
Other articles where Abdominal aorta is discussed: aorta: In the abdominal cavity the aorta gives off a number of branches, which form an extensive network supplying blood to the stomach, liver, pancreas, spleen, small and large intestines, kidneys, reproductive glands, and other organs. At the level of the fourth lumbar vertebra, which is about even…
A Riddle of Esophagography: Where Do the Descending Aorta and the Abdominal Aorta Run in Cases of the Right Aortic Arch? Report of two cases, Sugiura Y, Sh
Contrast-enhanced peripheral MR angiography from the abdominal aorta to the pedal arteries: Combined dynamic two-dimensional and bolus-chase three-dimensional acquisitions Academic Article ...
In 1959 Cook (1) described a clinical syndrome of the occlusion of the abdominal aorta which was dominated by neurological abnormalities. He found four similar cases (2, 3) described under different names and explained differently in respect to their etiology and mechanism. On the basis of his observation of his own two cases and those from the literature, Cook gave the following clinical picture of the syndrome: rapid onset of varying degrees of paraparesis; neurological signs reaching the seventh dorsal segment; areflexia or hyporeflexia of the lower extremities, impaired proprioceptive sensibility; presence of bilateral Babinskis signs; incontinence of the feces ...
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I would like to commend Norris et al . for performing an elegant and important study. 1 The authors answered the primary question of the study and showed that length of hospital stay (LOS) did not differ among the four treatment arms. The rationale for using LOS as the primary outcome measure was that it is the variable most directly proportional to an integrated final negative effect of all significant perioperative morbidity. Although the authors explain in the discussion why they chose not to focus on relatively rare events (death and myocardial infarction), they go on to summarize the important findings of the study in the abstract reporting on LOS followed immediately by the statement:Postoperative outcomes were similar among the four treatment groups with respect to death, myocardial infarction…. The article lacks a clear statement in the abstract or in the limitations section explaining that the study was insufficiently powered to test differences in these outcomes. The message to ...
Longitudinal image through the normal abdominal aorta (A) with a diameter of 2 cm.. Exam. Begin with the patient in the supine position. Obtain longitudinal and transverse images of entire abdominal aorta and a transverse view of bifurcation to show the iliac arteries. Get a longitudinal image of each iliac artery. Image the superior mesenteric artery (SMA) and celiac artery. Image renal arteries if origins are seen. AAA measurements: AP measurement in longitudinal and transverse views. Measure transverse diameter. Measurements are outer wall to outer wall. If AAA is found, obtain coronal views of right and left kidneys for renal length.. Sonographic Findings: 1) Abdominal aorta , 3 cm, measured from inner wall to inner wall.. ...
Abdominal Aortic Aneurysm: Has the Bubble Burst? An aneurysm is generally considered as an increase in the original size of your blood vessels
Dittmar Bӧckler told Vascular News how his move to the vascular specialty was pure coincidence, but one that has since turned out to be a happy one.
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94. of such a variation is the comparative incidence of wounds of the vena cava and of the abdominal aorta (pp. 318, 322). Thirty-three of the former were observed, but none of the latter, presumably because wounds of the abdominal aorta were almost immediately fatal.. When the distribution of abdominal visceral injuries in this series is compared with the distribution in other reported series (table 8), two important differences are at once apparent:. 1. In general, the frequency of wounding of all organs was higher in this series than in most other series.. 2. The rate of univisceral to multivisceral wounds was strikingly reversed in comparison with earlier experiences. The assumption seems warranted that in this series a much higher proportion of severely wounded men (that is, men with multiple visceral wounds) reached forward hospitals, and were operated on, than was the case in other reported series. No other explanation seems reasonable for the overall increase in frequency of wounding of ...
A flexible instrument having spoon shaped flat jaws with serrations which makes sure non-traumatic clamping during surgical procedures.
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Arti kata dari aaa. Definisi dari aaa. Pengertian dari aaa: an aneurysm of the abdominal aorta associated with old age and hypertension;
Oxygenated blood begins its course down the chest through the thoracic aorta, a major blood vessel with branches that serve the chest muscles and lungs. This becomes the abdominal aorta.
Stroke and vascular disease affect thousands of Americans each year. A screening for these diseases can measure your risk and provide important information to help improve your vascular health and prevent life-threatening problems. The stroke and vascular screening at Inland Imaging includes a check of the three areas of your body that are most susceptible to signs of vascular disease: the abdominal aorta, the carotid arteries, and the peripheral arteries.. Heart Disease ...
A surgical procedure in which the surgeon uses a graft - either a blood vessel from another part of the body or one made of synthetic fabric - to bypass a blockage and restore blood flow to a blocked abdominal aorta. Typically requires a hospital stay of five to seven days ...
стр. 87 Temporary intra-abdominal extravasal transparietal compression of terminal abdominal aorta - the key to reducing the duration of obstetric bleeding and amount of blood loss Аntonyuk-Kysil V. M., Yenikieieva V. M., Lichner S. І., Lypnyi V. M., Drozd V. V. HEALTH OF WOMAN. 2016.10(116):87-90; DOI 10.15574/HW.2016.116.87 ...
1. Muhammad Ramzan Ul Rehman 1 2. Muhammad Ramzan Ul Rehman 2 3. The abdominal aorta begins at the aortichiatus of the diaphragm, anterior to thelower border of vertebra…
Wilmink A, Hubbard C, DAY N, Quick C. The incidence of small abdominal aortic aneurysms and the change in normal infrarenal aortic diameter: implications for screening. Eur J Vasc Endovasc Surg. 2001; 21(2): 165-70 ...
TY - JOUR. T1 - Comparison of transmitted pressure across percutaneous abdominal aorta aneurysm conduits. T2 - A new in vitro model. AU - Thorpe, P. E.. AU - Hunter, D. W.. AU - Chouinard, P.. AU - Agrawal, Devendra K.. AU - Zhan, X. X.. PY - 1996. Y1 - 1996. N2 - The treatment of abdominal aorta aneurysm is aimed at decreasing pressure on the arterial wall which is thought to cause growth and eventual rupture of the aneurysm. If significant pressure is transmitted across percutaneously placed stem-grafts, they may prove unacceptable for abdominal aorta aneurysm repair. Therefore, we developed an in mm model to study transmission of pressure across various materials implanted in an aneurysmal lumen. A pinch roller model producing pulsatile flow through an aneurysm fashioned from heated polyethylene was used with H2O, glycerol and heparinized bovine blood. Continuous pressure readings obtained from 3 sites (above, below and mid aneurysm) were compared between different materials including bare ...
ATLANTA--Researchers have found a link between dysregulated tryptophan metabolism and abdominal aortic aneurysm, a life-threatening vascular disease, according to a new study led by Georgia State University.. Abdominal aortic aneurysm is a permanent, localized enlargement of the abdominal aorta, the largest artery in the abdomen that provides blood to the organs and tissues of the abdomen, pelvis and legs. Because the abdominal aorta is one of four sections of the aorta, the bodys main supplier of blood, a ruptured abdominal aortic aneurysm can cause life-threatening bleeding, according to the Mayo Clinic.. Abdominal aortic aneurysm occurs in up to 9 percent of adults older than 65 years of age, with about 15,000 deaths each year in the United States after rupture. Abdominal aortic aneurysms often grow slowly and without symptoms, making them difficult to detect.. There are no proven therapeutic strategies to block progression of the disease and rupture of the abdominal aorta. The only possible ...
The pathology of the human abdominal aortic aneurysm (AAA) and its relationship to the later complication of intraluminal thrombus (ILT) formation remains unclear. The hemodynamics in the diseased abdominal aorta are hypothesized to be a key contributor to the formation and growth of ILT. The objective of this investigation is to establish a reliable 3D flow visualization method with corresponding validation tests with high confidence in order to provide insight into the basic hemodynamic features for a better understanding of hemodynamics in AAA pathology and seek potential treatment for AAA diseases. A stereoscopic particle image velocity (PIV) experiment was conducted using transparent patient-specific experimental AAA models (with and without ILT) at three axial planes. Results show that before ILT formation, a 3D vortex was generated in the AAA phantom. This geometry-related vortex was not observed after the formation of ILT, indicating its possible role in the subsequent appearance of ILT ...
We describe a case of aortic coarctation at the level of the infrarenal abdominal aorta which is encountered in less than six individuals in one million. In contrast to aortic narrowing above or including the renal arteries, this seems to be a relatively benign anomaly without systemic hypertension or impaired renal function. For the first time in this type of anomaly, contrast-enhanced MR angiography (ce-MRA) on a multi-receiver channel MR system, with an 8-channel phased array coil and parallel imaging was used. Ce-MRA displayed a tortuous, narrowed aortic segment that was found to be associated with mesenteric artery stenosis and compression of the orthotopic left renal vein, also known as the nutcracker phenomenon. All major aortic branches could be depicted using 3D surface-shaded displays and subvolume maximum intensity projections (MIPs). Collateral vessels of the abdominal wall were identified using whole-volume MIPs. Since the majority of aortic malformations are diagnosed at a younger age, and
Systemic lupus erythematosus (SLE) increases the risk of adverse pregnancy outcomes and fetal complications. the 6th post-cesarean day time, and an arterial thrombus was eliminated. Infrarenal abdominal aorta balloon occlusion may increase the risk of postoperative thrombosis in pregnant women with active SLE and coagulation disorders. These individuals consequently require close monitoring and timely anticoagulation. Keywords: Systemic (Z)-Capsaicin lupus erythematosus, pernicious placenta previa, placenta percreta, infrarenal abdominal aorta, balloon occlusion, thrombosis (Z)-Capsaicin Intro Systemic lupus erythematosus (SLE) is definitely a multisystemic autoimmune disorder with heterogeneous manifestations that is common in females of reproductive age. Pregnant women with SLE are in higher dangers of undesirable being pregnant problems and results, such as serious preeclampsia, Rabbit Polyclonal to HDAC5 (phospho-Ser259) attacks, thromboembolic problems, and mortality.1 Pernicious placenta ...
Introduction. Collagen is the most abundant protein in mammals and gives mechanical strength, stiffness and toughness to biological tissues like skin, tendon, bone, and vasculature [1]. Collagen fibrils of about 0.1 micrometers in diameters are the basic building blocks of fibrous collagenous tissues and their organization into suprafibrilar structures determines the tissues macroscopic mechanical properties. For example, detailed data regarding the organization of strong bundles of collagen might be critical to predict the onset of tissue failure, as it is clinically motivated by a rupture risk assessment of Abdominal Aortic Aneurysm (AAA). Previously proposed structural constitutive models for soft biological tissues [2, 3] integrated information regarding the collagen orientation, and regardless of their popularity, the requested microstructural information is not yet available in the open literature.. Method and Materials. The present study investigated the collagen formation in 12 AAA wall ...
Introduction. Collagen is the most abundant protein in mammals and gives mechanical strength, stiffness and toughness to biological tissues like skin, tendon, bone, and vasculature [1]. Collagen fibrils of about 0.1 micrometers in diameters are the basic building blocks of fibrous collagenous tissues and their organization into suprafibrilar structures determines the tissues macroscopic mechanical properties. For example, detailed data regarding the organization of strong bundles of collagen might be critical to predict the onset of tissue failure, as it is clinically motivated by a rupture risk assessment of Abdominal Aortic Aneurysm (AAA). Previously proposed structural constitutive models for soft biological tissues [2, 3] integrated information regarding the collagen orientation, and regardless of their popularity, the requested microstructural information is not yet available in the open literature.. Method and Materials. The present study investigated the collagen formation in 12 AAA wall ...
Black men appear less likely to undergo elective aneurysm repair than white men, Study analyzes best approach for treating abdominal aortic aneurysms. Furthermore, a less-invasive surgical technique known as endovascular aneurysm repair (EVAR) has allowed surgical repair for greater numbers of older patients with additional health problems. An abdominal aortic aneurysm (AAA) is an abnormal widening of the abdominal aorta, the main artery supplying blood to the organs in the abdomen and lower part of the body. Scary Symptoms assumes no responsibility for ad content, promises made, or the quality or reliability of the goods or services offered in any advertisement. Therefore, the only way to prevent tragedies from occurring is to receive surgery early. If your doctor suspects that you have an aortic aneurysm, specialized tests, such as the following, can confirm it. Aortic aneurysms do not have obvious signs and most people find them by chance during exams or tests done for other reasons, Dr. ...
Endovascular treatment of occlusive disease of the aortic bifurcation is challenging. We developed the Covered Endovascular Reconstruction of Aortic Bifurcation or CERAB-technique, as a new approach for extensive and/or recurrent aortoiliac occlusive disease using three covered balloon expandable stents to reconstruct the aortic bifurcation. This configuration provides the ability to deal with TransAtlantic Inter-Society Consensus (TASC II) C and D lesions, simulating a neo-bifurcation or flow divider in combination with the benefits of covered stents. The intervention can be performed percutaneously or as a hybrid procedure. Initial results are encouraging and further studies are indicated.. ...
Complete surgical resection of soft-tissue sarcomas (STSs) frequently requires complex multivisceral resections, which is the most important factor related to overall survival and local recurrence. Major vascular involvement is not rare in patients with primary retroperitoneal STSs. We present a 54-year-old woman with a retroperitoneal STS encasing the infrarenal abdominal aorta. The patient underwent complete oncological resection with vascular reconstruction using a bi-iliac vascular graft. Major blood vessel involvement is not a contraindication for STS surgery with a curative intent. ...
Objective: Abnormalities of the aortic root and ascending aorta are common in patients with a bicuspid aortic valve (BAV). The aim of this study was to evaluate the stiffness of the abdominal aorta in children with BAV.Methods: In this cross-sectional observational study, we evaluated 35 children with normally functioning or mildly regurgitant BAV and 35 healthy children as controls. All children were noninvasively evaluated with transthoracic echocardiography. Annulus of aorta and abdominal aorta diameters were measured. Aortic strain (S), pressure strain elastic modulus (Ep), pressure strain normalized by diastolic pressure (Ep*), aortic stiffness β index (βSI) and, aortic distensibility (DIS) were calculated using the measured data. In evaluation of the data Students t-test, Chi-square test, Pearsons correlation and multivariate linear regression analysis were used.Results: Diameter of the aortic annulus was found significantly larger in the children with BAV than the control group (p|0.05). The
TY - JOUR. T1 - Seat belt injuries of the abdominal aorta in adults - Case report and literature review. AU - Freni, Luca. AU - Barbetta, Iacopo. AU - Mazzaccaro, Daniela. AU - Settembrini, Alberto M.. AU - Dallatana, Raffaello. AU - Tassinari, Luca. AU - Settembrini, Piergiorgio G.. PY - 2013/2. Y1 - 2013/2. N2 - Blunt abdominal trauma with major vascular involvement is found to be rare. Although few series have been reported in the literature, the true incidence of blunt abdominal aortic injury is unknown. Different modalities of blunt trauma may occur among civilians with steering wheel and seat belt injury secondary to motor vehicle accident the most frequent. Mechanical forces produce variable patterns of injury; therefore, the onset of signs and symptoms can be different. Dissection and thrombosis of the abdominal aorta have been frequently described among seat-belted adult patients with major vascular involvement. The associated abdominal viscus and/or vertebral lesions must always be ...
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Abdominal aortic aneurysm (AAA) is a common disease for which mechanisms of formation are still not well understood. Despite a strong genetic component to AAA risk, specific risk alleles are still largely unidentified. AAA is also a localized disease with a majority occurring in the infrarenal abdominal aorta and is six times more common than aneurysms of the thoracic aorta. To determine whether risk alleles are present in functional positional candidate genes. we: 1. performed a genetic association study using DNA from AAA cases and controls in ten candidate genes and 2. performed exon sequencing on three genes with evidence of nominal association. To identify genes with regional expression in the aorta of potential relevance to AAA: 1. Illumina microarrays were used to perform a gene expression profiling of entire baboon aortas and 2. protein expression of one candidate gene, HOXA4, was examined in further detail. Single nucleotide polymorphisms in three positional candidate genes, CEBPG, PEPD and
Hypoplastic infrarenal aorta or infrarenal aortic coarctation is an uncommon vascular pathology characterized with diffuse stenosis in the infrarenal abdominal aorta. It is a variant of atherosclerotic occlusive diseases. The exact incidence and etio
Several studies have demonstrated that AngII infusion leads to the formation of AAAs in mice.12,13,50 AngII exerts its diverse bioactive effects primarily by activating the AT1a receptor in mice, which plays a critical role in AngII-induced AAA development.17 In addition to mediating traditional G-protein-dependent signaling, the AT1a receptor is involved in G-protein-independent signaling by forming a complex with the multifunctional scaffolding protein βarr2.19,24 In the present study, we investigated a role for βarr2 in AngII-induced AAA formation and found that βarr2 deficiency significantly attenuates AAA formation in mice both on a hyperlipidemic apoE background and on a normolipidemic C57BL/6 background (Figure 1). These studies suggest that G-protein-independent, βarr2-dependent signaling for the AT1a receptor plays a major role in AngII-induced AAA formation.. Although our present studies showed that βarr2 deficiency attenuated AngII-induced AAA formation in mice on the ...
Care guide for Endovascular Aneurysm Repair of Abdominal Aorta (Discharge Care). Includes: possible causes, signs and symptoms, standard treatment options and means of care and support.
TY - JOUR. T1 - Supraceliac, but not infrarenal, aortic cross-clamping upregulates neutrophil integrin CD11b. AU - Hill, Gary E.. AU - Mihalakakos, Paul J.. AU - Spurzem, John R.. AU - Baxter, Timothy B.. PY - 1995. Y1 - 1995. N2 - Objective: To evaluate the effects of supraceliac and infrarenal aortic cross-clamping on the expression of neutrophil integrin CD11b (a marker of systemic cytokine release). Design: Two groups, determined by anatomic placement of aortic cross-clamp. Laboratory personnel were blinded as to group assignment. Setting: University teaching and community hospitals. Laboratory facilities used were university and Veterans Affairs medical centers. Participants: Patients scheduled for aortic surgery. Interventions: Blood sampling was performed at baseline, after 30 minutes of aortic cross-clamp duration, 30 and 90 minutes after reperfusion (for tumor necrosis factor-α plasma levels in infrarenal cross-clamp group), and at baseline and 90 minutes reperfusion (for neutrophil ...
This study was undertaken to analyze immediate and mid-term knitted Dacron graft dilation and to establish which parameters should be taken as a reference when aortic graft dilation is evaluated. A Dacron knitted microvel double velour vascular graft (Hemashield Gold) was implanted in 30 patients with aneurysmal (19 cases, 63%) or occlusive (11 cases, 37%) aortic disease. The stems of bifurcated prostheses (27 patients, 90%) and tube grafts (3 patients, 10%) were measured. The package sizing (labelled size) was compared with the external diameter measured intraoperatively with a slide caliper, prior to implantation and after complete clamp release. Additional measurements were obtained by ultrasound 1 and 6 months after implantation, and in 16 cases (53% of the patients) ultrasound and computed tomography (CT) were performed at the end of the first year. The means of the measurements were compared using Students t test for matched pairs. The statistical significance level was set at p values | 0.05.
Vascular Behcets disease has a poor prognosis. This poor prognosis is due to postoperative complications including pseudoaneurysm with 50% occurrence after previous surgical repair of aneurysm especially at the site of surgery. It is suggested that the fragility of the vascular wall may play a major role in this recurrence. Recent studies have demonstrated the effectiveness of endovascular stent-grafting for recurrent aortic aneurysm in patients with Behcets disease. We present a recurrent aneurysm of the abdominal aorta at a previously scarred operative site in a known case of Behcets disease. We attempted an endovascular treatment.. ...
This page includes the following topics and synonyms: Ultrasound in Abdominal Aortic Aneurysm, Ultrasonography of Abdominal Aortic Aneurysm, Ultrasound of AAA, Abdominal Aorta Ultrasound, Ultrasound of Abdominal Aorta.
Summary Question: Does backward walking offer additional therapeutic value in patients after aortic aneurysm surgery? Participants: The study of backward walking as an addictive physiotherapy procedure was conducted in the group of 65 patients who underwent abdominal aorta surgery. The patients were randomly divided into three subgroups and three various models of physiotherapy were applied. Control group has only routine physiotherapy since therapeutic group I and II have also walking exercises forward in group I and backward in group II respectively ...
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Blood vessels are tubes that carry blood throughout your body. Arteries (red) carry oxygen-rich blood from the heart to the rest of your body. Blood vessels that carry blood back to your heart are called veins (blue). An abdominal aortic aneurysm occurs when a part of the largest artery in the body, the aorta, weakens and expands.. The aorta is the artery that carries blood directly from the heart. Blood then flows from the aorta into smaller arteries that supply the rest of the body. A healthy artery is smooth on the inside, which allows blood to flow easily. The part of the aorta that travels through the abdomen (stomach area) is called the abdominal aorta. Smaller arteries branch of the abdominal aorta to carry blood to organs in the abdomen. These include the renal arteries, which supply the kidneys. Lower down, the aorta divides into two iliac arteries, which supply blood to the legs.. The problem begins when the lining of the aorta is damaged or the aorta may become weakened due to certain ...
A 63-year-old female presented with proximal bilateral lower extremity pain that occurred after walking and was resolved by resting in the standing position. Her past medical history was significant for obesity, hypertension, and dyslipemia. On physical examination, the bilateral pedial and posterior tibial pulses were absent, the bilateral popliteal pulses and the left femoral pulse were weak, and the right femoral pulse was not palpable. The computed tomography angiogram revealed diffuse atherosclerotic disease involving the infrarenal abdominal aorta, causing an occlusion of distal aorta and both primitive iliac arteries with posterior spontaneous revascularization (Figure 1A, 1B); a mobile thrombus originated from the inner curve of the isthmic aorta and extended over 10cm, occluding 65% of the lumen of the descending aorta (Figure 2A, 2B).. ...
Coronary artery calcium (CAC) was measured by the average of 2 electron beam computed tomography (EBCT) measurements, with prevalent CAC defined by an average score of ,10 Agatston units, a data derived threshold determined to maximize signal to noise ratio, as previously described.13 Abdominal MRI was performed using a 1.5 Tesla whole-body MRI system (Intera, Philips Medical Systems). Six transverse slices of the infrarenal abdominal aorta were obtained using a free-breathing, ECG-gated, T2-weighted turbo spin-echo (black-blood) sequence as described previously.14 Images were analyzed by trained observers blinded to all subject data using the Magnetic Resonance Analytic Software Systems (MASS) cardiac analysis software package (Version 4.2 beta, Medis Medical Imaging Systems Inc). Atherosclerotic plaque (AP) was identified as hyperintense signal volume that protruded ≥1 mm from the endoluminal surface of the aortic wall as previously defined.15 Plaque was manually contoured in each image, and ...
The CPT Code 34803 is the code used for Surgery / cardiovascular system. The general guidance for this code is that it is used for repair of bulging (aneurysm) or tear in abdominal aorta. Below you will find cost information associated with this procedure based upon the a set of publicly available data which details all doctors who billed Medicare for this code. These costs are a guideline of what you may be charged for this particular CPT code, but of course your results may vary ...
Learn more about ultrasound abdominal aortic screening from an osteopathic physician. Call Physicians Health & Wellness at 212.838.8265 now. We welcome patients from New York, Manhattan, Midtown, Queens, the Bronx and nearby areas.
Abdominal aortic ultrasound is performed by Dr Frikkie Rademan in Durbanville, Cape Town and Western Cape to diagnose the defects in the abdominal aorta.
The abdominal aorta pulse is located just up and to the left of the umbilicus, according to the Journal of the American Family Physician. To find the pulse in another person, press on his abdomen...
Background Research: The definition of an aneurysm is permanent, localised dilatation of a blood vessel or heart chamber. The abdominal aorta is the largest blood vessel in the human body and usually has a diameter of 1.8 -2.0 centimetres (cm), dependant on age, sex and body habitus. Aortic dilatation is generally classed as an aneurysm when dilation of the vessel is 1.5 times the normal size. An abdominal aortic aneurysm (AAA) affects any part of the aorta below the diaphragm with 80 % typically being found between the renal artery and aortic bifurcation. Risk Factors There are many factors that relate to the development of AAA. Gender is one of the biggest non-modifiable risk factors, as an AAA is four to six times more likely in males compared with females. Furthermore, the development of AAA in females occurs approximately ten years later than males. The risk of AAA also increases if there is family history of the disease, especially if the relative is first degree. There is also ...
ECG-gated scans of the heart used to determine CAC were performed using a standard protocol that has been described in detail.10 At years 15 and 20, 2 sequential heart scans were obtained and their scores averaged, whereas a single scan was obtained at year 25. Image analysis was performed at a central reading center (Wake Forest University Health Sciences, Winston-Salem, NC). Trained technicians measured CAC on a workstation with Food and Drug Administration-approved calcium scoring software (Aquarius Workstation, TeraRecon, Foster City, CA).The Agatston score, corrected for slice thickness with a minimum lesion size of 4 adjacent pixels (minimum area of 1.87 mm2) and attenuation threshold of ≥130 Hounsfield units, is reported.11 For analyses comparing the absence with the presence of CAC or AAC, any CAC or AAC was considered a positive result. The previously reported year 15 CAC scores (read at a different site) were reanalyzed using the year 20 and 25 software and readers to ensure ...
To the editor: In the March 1999 issue of The American Journal of Physiology, Hardt et al. (1) presented an elegant experimental study on the validation of intravascular ultrasound (IVUS) in assessing changes in the pressure-diameter relationship in the aorta of dogs. They compared measurements of abdominal aortic diameters derived from IVUS with those obtained at the same site using implanted sonomicrometers. They then calculated the arterial compliance as the ratio of systolic to diastolic amplitude of the diameter to the amplitude of the pressure (1). The unit used to express compliance is micrometers per millimeter of mercury (μm/mmHg).. The classic definition by Spencer and Denison (3) of compliance (C) is the change in arterial blood volume (ΔV) due to a given change in arterial blood pressure (ΔP), i.e., C = ΔV/ΔP. This definition is still accepted (and therefore, C is expressed in μm3/mmHg or m3/kPa).. In clinical practice, cross-sectional compliance (CC) is utilized, assuming ...
Three-dimensional computed tomographic (CT) scan reconstruction of an abdominal aortic aneurysm. The aneurysm appears as a swollen bulge located on the abdominal aorta, before its division in the two common iliac arteries. - Stock Image C035/3567
An aortic aneurysm is the dilatation (widening or bulge) of a portion of the aorta, usually at a weak spot in the aortic wall. The aorta is the largest artery in the body. It carries all the blood that is pumped out of the heart and distributes it, via its many branches, to all the organs of the body. The aorta projects upwards from the heart in the chest and then arches downwards, travelling through the chest (the thoracic aorta) and into the abdomen (the abdominal aorta). The normal diameter of the abdominal aorta is about one inch ...
Abdominal aortic aneurysm (AAA) repair procedures can be done surgically or through minimally invasive techniques. AAA procedures are used to treat an aneurysm (abnormal enlargement) of the abdominal aorta.
An abdominal aortic aneurysm (AAA) is a swelling in the abdominal aorta, which is the main artery that supplies blood to your body. As the AAA grows, the wall of the aorta stretches and becomes weaker, which can eventually lead to a significant risk of a ruptured AAA. This is often fatal.
Abdominal aortic aneurysm (AAA) is a focal dilatation of the abdominal aorta to more than 1.5 times its normal diameter. AAAs are classified by location as eit…
Aneurysm development is a complex process that involves synthesis and degradation of the extracellular macromolecules of the matrix. Proteinases that degrade the structural matrix are likely to have a pivotal role in this process. We have investigated 2 MMPs that account for the majority of the elastolytic activity found in AAA tissue by using 3 different techniques. Our quantitative analyses of transcript and protein levels demonstrate that both MMP-2 and MMP-9 are increased in the diseased aorta. However, only MMP-2 distinguishes between AAA and AOD, with increased production found in AAA. Additionally, there was increased activation and matrix binding of this gelatinase in AAA. MMP-9 transcript and protein were increased in both diseases to a similar extent.. Using QCRT-PCR, we detected MMP-9 in control, AOD, and AAA tissues. MMP-9 transcripts found in the control aorta may reflect the presence of subclinical atherosclerosis in some transplant specimens. These atherosclerotic changes begin in ...
Abdominal aortic aneurysm (AAA) is a localized enlargement of the abdominal aorta, larger than normal. It commonly causes no symptoms,…. Continue Reading →. ...
Abdominal aortic aneurysm above the bifurcation (3.2 x 3.6 cm). Ectasia up to 2 cm and massive elongation of the iliac arteries. ...
Magnetic resonance imaging (MRI) of aortic atherosclerosis can predict the risk of heart attacks and other cardiovascular events in otherwise healthy individuals, researchers at UT Southwestern Medical Center have found.
1. The Carotid Screening: The sonographer will assist you to the exam table and have you lie down. Ultrasound gel will be applied to your neck area and the technologist will move a transducer (our camera so to speak) over both the RT and Lt Carotid arteries. This will allow the physician to visualize real-time the structure and integrity of the neck arteries to observing for plaque or arterial narrowing. Approximately 5-10 minutes.. 2. Abdominal Aorta Screening:. The sonographer will ask you to lift your shirt up to expose your abdomen. Ultrasound gel will be applied and the transducer moved up and down your abdomen over your aortic vessel. This portion of the test checks for enlargement of the abdominal aorta. The physician will report the results of the Carotid and Aortic exam as this portion is completed.. 3. Ankle-Brachial Indices Exam: The ABI exam will assess for peripheral arterial disease (PAD). The technologist will assist you in removing your socks, shoes and rolling up your shirt ...
Two hundred aneurysms of the abdominal aorta were treated surgically from 1980 to 1987 by the same surgeon. There were 187 men and 13 women whose mean age was 66.1 years. Nine patients were...
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... such as used for abdominal aortic aneurysms, is between the outer margins of the aortic wall. Abdominal aorta Abdominal aorta ... In human anatomy, the abdominal aorta is the largest artery in the abdominal cavity. As part of the aorta, it is a direct ... The abdominal aorta supplies blood to much of the abdominal cavity. It begins at T12 and ends at L4 with its bifurcation into ... The abdominal aorta is clinically divided into 2 segments: The suprarenal abdominal or paravisceral segment, inferior to the ...
The aorta then continues downward as the abdominal aorta (or abdominal portion of the aorta) from the diaphragm to the aortic ... After the aorta passes through the diaphragm, it is known as the abdominal aorta. The aorta ends by dividing into two major ... the aorta then travels inferiorly as the descending aorta. The descending aorta has two parts. The aorta begins to descend in ... Variations may occur in the location of the aorta, and the way in which arteries branch off the aorta. The aorta, normally on ...
Abdominal aorta aneurysms; corneal endothelium, corneal keratocytes, trabecular cells, ciliary epithelium, conjunctival stromal ... The ductus operates in the fetus to shunt blood from the pulmonary artery to the proximal descending aorta thereby allowing ...
Middle suprarenal arteries Inferior suprarenal artery Listmann, Mishan; Tubbs, R. Shane (2020). "19 - The Abdominal Aorta". ... It is a branch of the inferior phrenic artery, itself a branch of the aorta. It supplies the adrenal gland. The superior ... The inferior phrenic artery is itself is a branch of the aorta. The phrenic artery supplies the diaphragm. The superior ...
2. The Abdominal Aorta". Anatomy of the Human Body. Retrieved 9 December 2015. Ceppa, EP; Fuh, KC; Bulkley, GB (April 2003). " ... Both the superior and inferior mesenteric arteries arise from the abdominal aorta. Each of these arteries travel through the ... The mesenteric arteries take blood from the aorta and distribute it to a large portion of the gastrointestinal tract. ...
... abdominal aorta). The chest (apex of the heart), which can be felt with one's hand or fingers. It is also possible to ...
... (AAA) is a localized enlargement of the abdominal aorta such that the diameter is greater than 3 cm ... There is also a reduced amount of vasa vasorum in the abdominal aorta (compared to the thoracic aorta); consequently, the ... An abdominal aortic aneurysm is usually diagnosed by physical exam, abdominal ultrasound, or CT scan. Plain abdominal ... The aorta must be clamped during the repair, denying blood to the abdominal organs and sections of the spinal cord; this can ...
The abdominal inguinal ring. The abdominal aorta and its branches. This article incorporates text in the public domain from ... Thus to the extent that traditional abdominal exercises (e.g. crunches) or more advanced abdominal exercises tend to "flatten" ... The transverse abdominal, so called for the direction of its fibers, is the innermost of the flat muscles of the abdomen. It is ... The transverse abdominal and the segmental stabilizers (e.g. the multifidi) of the spine have evolved to work in tandem. While ...
The abdominal aorta and its branches. The inferior mesenteric artery and its branches. Abdominal portion of the sympathetic ... "Posterior Abdominal Wall: Branches of the Abdominal Aorta" Anatomy image:7924 at the SUNY Downstate Medical Center Anatomy ... The IMA branches off the anterior surface of the abdominal aorta below the renal artery branch points, 3-4 cm above the aortic ... In human anatomy, the inferior mesenteric artery, often abbreviated as IMA, is the third main branch of the abdominal aorta and ...
In medicine, aortoiliac occlusive disease is a form of central artery disease involving the blockage of the abdominal aorta as ... JAWOR, WJ; PLICE, SG (10 May 1952). "Thrombotic obliteration of the abdominal aorta; report of a case". Journal of the American ... Graham, Robert (1814). "Case of Obstructed Aorta". Med. Chir. Tr. 5: 287-456.9. PMC 2128948. PMID 20895223. ... so named because the two common iliac stents touch each other in the distal aorta. Aorto-iliac bypass graft Axillary-bi-femoral ...
The abdominal aorta and its branches. Abdominal portion of the sympathetic trunk, with the celiac and hypogastric plexuses. ... The aortic bifurcation is the point at which the abdominal aorta bifurcates (forks) into the left and right common iliac ... Posterior abdominal wall, after removal of the peritoneum, showing kidneys, supra-renal capsules, and great vessels. Lerona PT ... v t e (Anatomy NAV infobox with use of other NAV parameters, Articles with TA98 identifiers, Aorta, Abdomen, All stub articles ...
It arises from the abdominal aorta below the renal artery. It can be found within the suspensory ligament of the ovary, ... 223 The ovarian arteries are paired structures that arise from the abdominal aorta, usually at the level of L2. After emerging ... This is thus an anastamosis between the abdominal aorta and the anterior internal iliac artery. Small branches are given to the ... The ovarian arteries swell during pregnancy, in order to increase the uterine blood supply.: 431 The abdominal aorta and its ...
Mycotic abdominal aorta aneurysm (MAAA) is a rare and life-threatening condition. Because of its rarity, there is a lack of ... Experience with infected aneurysms of the abdominal aorta. Arch Surg. 1975;110:1281-1286. Mycotic (Infected) Aneurysm Caused by ... A management protocol on the management of mycotic abdominal aortic aneurysm was recently published in the Annals of Vascular ... "Mycotic Abdominal Aortic Aneurysms - A Tertiary Centre Experience and Formulation of a Management Protocol". Annals of Vascular ...
Anatomy photo:40:11-0104 at the SUNY Downstate Medical Center - "Posterior Abdominal Wall: Branches of the Abdominal Aorta" ... The middle suprarenal artery (usually) arises from lateral aspect of the abdominal aorta. Its origin occurs at roughly the same ... ISBN 978-0-7020-7707-4. OCLC 1201341621.{{cite book}}: CS1 maint: others (link) "5 - Abdominal Aorta". Vascular and ... It is a branch of the aorta. It supplies the adrenal gland. ...
2010 Hospital Quality Ratings: Resection/Replacement of Abdominal Aorta. Retrieved on January 6, 2012. 2010 ... repair of the abdominal aorta, carotid surgery, gastrointestinal surgery, pancreatitis and cholecystectomy. Saint Thomas ...
"Multiple variations in the paired arteries of the abdominal aorta". Clinical Anatomy. 19 (6): 566-568. doi:10.1002/ca.20207. ... More rarely, it may originate directly from the aorta. It may give off a small branch to the kidney. There may be two or three ... Adrenal gland Aorta Superior suprarenal artery Middle suprarenal arteries This article incorporates text in the public domain ... Blood supply to the suprarenal glands." Anatomy photo:40:04-0103 at the SUNY Downstate Medical Center - "Posterior Abdominal ...
IMPRESSION: Normal abdominal ultrasound. Aorta Aorta Aorta Aorta Aorta Right kidney Right kidney Right kidney Right kidney ... Abdominal ultrasound is commonly used in the setting of abdominal pain or an acute abdomen (sudden and/or severe abdominal pain ... Abdominal ultrasonography (also called abdominal ultrasound imaging or abdominal sonography) is a form of medical ... It can be used on the abdominal aorta to detect or exclude abdominal aortic aneurysm. For this purpose, the standard aortic ...
Humphrey, J.D.; Holzapfel, G.A. (2012). "Mechanics, mechanobiology, and modeling of human abdominal aorta and aneurysms". ... "Determination of the layer-specific distributed collagen fibre orientations in human thoracic and abdominal aortas and common ... "Microstructure and mechanics of healthy and aneurysmatic abdominal aortas: experimental analysis and modelling". Journal of the ...
Rob, Charles (November 1955). "The Surgery of the Abdominal Aorta and its Major Branches". Annals of the Royal College of ... In 1961, after recalling that cloth grafts had been used in the aortas of pigs, he used his nylon shirt to successfully repair ... After debriding and resecting the aneurysm, the two open ends of the aorta needed to be rejoined with a graft, but the surgeons ... In 1955, he presented his experiences of over 30 abdominal aortic aneurysms to the Royal College of Surgeons. In 1955, Rob ...
A pocket for the LVAD is formed in the abdominal wall. A tube is then used to channel blood from the ventricle to the LVAD. ... Another tube is used to connect the pump to the aorta. When the pump is adequately supporting the heart, the patient will be ...
... from the aorta) Volume rendered CT scan of abdominal and pelvic blood vessels. Bifurcation of the aorta and the right iliac ... a branch of the abdominal aorta) and uterine arteries form an anastomoses. In the fetus, the internal iliac artery is twice as ... Posterior view of the anterior abdominal wall in its lower half. The peritoneum is in place, and the various cords are shining ... Posterior abdominal wall, after removal of the peritoneum, showing kidneys, suprarenal capsules, and great vessels. The ...
Arterial vessels are connected to the abdominal aorta, below the kidneys. However, venous drainage, or the reattachment of the ... any abdominal scar tissue from previous surgeries must be removed. The aorta and vena cava are dissected in preparation for ... As the abdominal organs are cooled in situ, the surrounding tissue is dissected so that they may be quickly extracted. In the ... Following this, the aorta, cava, and portal veins of the donor and recipient are anastomosed. The graft is then flushed before ...
Mason died unexpectedly of a ruptured abdominal aorta on July 8, 2009. Andrews, Tina (August-September 2009). Stayton, Richard ...
Ul Abideen Z, Abbas SF, Farooq M, Rasheed A, Ali F (December 2016). "Acute Abdominal Aorta Thrombosis and Ischemic ...
Baccelli performed important works on the pathology of the heart and aorta. The investigation of a wide variety of symptoms and ... Another important area of research for Baccelli was the abdominal and thoracic symptomatology. ... A new method of treatment for aneurysm of the aorta (1876) A new symptom of ovarian tumours in general and of ovarian cysts in ... Treatise in four volumes on the pathology of the heart and aorta (1863 to 1878) Clinical lectures on Malaria (1869) Sub ...
The aorta, namely aortic aneurysms including thoracic aortic aneurysms and abdominal aortic aneurysms. The brain, including ... Compared to normal aortas, aneurysmal aortas have a much higher volume fraction of collagen and ground substance (54.8% vs. ... the abdominal aorta, or, less frequently, the iliac arteries.: 357 Aneurysms can also be classified by their location: Arterial ... aortic aneurysms affecting the thoracic aorta, and abdominal aortic aneurysms. Aneurysms can arise in the heart itself ...
In 1951, E. J. Wylie, an American, performed it on the abdominal aorta. The first successful reconstruction of the carotid ...
Balloon occlusion of the aorta during endovascular repair of ruptured abdominal aortic aneurysm]". J Endovasc Ther. 12 (5): 556 ... If inflated in the aorta proximal to the identified source of bleeding it may help to diminish or stop blood extravasation, ... February 2016). "[Aorta Balloon occlusion in trauma: three cases demonstrating multidisciplinary approach already on patient's ... In a hemodynamically unstable bleeding patient, traditional treatment is laparotomy with abdominal packing, but an EVTM team ...
He died there five days later, aged 69, of a ruptured abdominal aorta. Fay was buried in Calvary Cemetery in Los Angeles. Fay ... Fay's death was due to an integral rupture of the abdominal aorta, according to St. John's Hospital doctors. A St. John's ...
Anatomy photo:40:11-0200 at the SUNY Downstate Medical Center - "Posterior Abdominal Wall: Branches of the Abdominal Aorta" ... The median sacral artery arises from the abdominal aorta at the level of the bottom quarter of the third lumbar vertebra. It ... The median sacral artery (or middle sacral artery) is a small artery that arises posterior to the abdominal aorta and superior ... The median sacral artery is morphologically the direct continuation of the abdominal aorta. It is vestigial in humans, but ...
The LV apex needs to be within 9 cm of the abdominal wall and the left ventricle outflow track has to be parallel to the ... The aortic valve is a one way valve that is located between the left ventricle and the aorta, keeping blood from leaking back ... It has three leaflets that separate when the ventricle contracts to allow blood to move from the ventricle to the aorta. These ... This maintains the connection between the aorta and the systemic circulation. A balloon atrial septostomy is also done. This ...
Structures such as the aorta, inferior vena cava and esophagus pass through the diaphragm. Both the abdominal and pelvic ... Abdominal obesity is a condition where abdominal fat or visceral fat, has built up excessively between the abdominal organs. ... The rectus abdominals' function is to bend one's back forward (flexion). The main work of the abdominal muscles is to bend the ... Abdominal trauma is an injury to the abdomen and can involve damage to the abdominal organs. There is an associated risk of ...
Schulte KM, Reiher L, Grabitz L, Sandmann W (Nov 2000). "Coral reef aorta: a long-term study of 21 patients". Ann Vasc Surg. 14 ... Studies may include echocardiography, thoracic and abdominal CT or MRI,[excessive citations] peripheral arterial run off ... Policha A, Moudgill N, Eisenberg J, Rao A, DiMuzio P (2013). "Coral reef aorta: case report and review of the literature". ... Belczak SQ, Sincos IR, Aun R, Costa KV, Araujo EA (Apr 2014). "Coral reef aorta, emergency surgical: case report and literature ...
The project tested the feasibility of replacing a diseased abdominal aorta with a mesh supported vena cava autograft In mid ... 1956 - Annual research prize of the British Columbia Surgical Society for work on the diseased abdominal aorta. 1957 - ...
CTA can be used in the chest and abdomen to identify aneurysms in the aorta or other major blood vessels. These areas of ... Another positive of CTA in abdominal aortic aneurysm assessment is that it allows for better estimation of blood vessel ... CTA is used also to identify arterial dissection, including aortic dissection in the aorta or its major branches. Arterial ... Liu PS, Platt JF (February 2014). "CT angiography in the abdomen: a pictorial review and update". Abdominal Imaging. 39 (1): ...
"A comparison of fenoldopam with dopamine and sodium nitroprusside in patients undergoing cross-clamping of the abdominal aorta ...
... for his work in connection with abdominal surgery 1902 Sir Patrick Manson,in recognition of the value of his work on Malaria ... Clinical History and Diagnosis of affections of the mediastinum other than those of the heart and aorta 1886 John Strahan, The ...
For example, an abdominal aortic angiography is taken in the arterial phase in the abdominal level, and is useful to detect for ... This method of imaging is used primarily to produce images of arteries, such as the aorta, pulmonary artery, cerebral, carotid ...
... inferior mesenteric ganglion is a ganglion located near where the inferior mesenteric artery branches from the abdominal aorta ...
... in order to determine the severity of bleeding and the timing of intervention Abdominal and rectal examination, in order to ... occur at the proximal anastomosis at the third or fourth portion of the duodenum where it is retroperitoneal and near the aorta ...
60% to 70% of the heart's output flows through the bypass to the aorta. The load on the heart is markedly reduced, and symptoms ... Apical left ventricular abdominal aortic composite conduits for left ventricular outflow obstructions. In: Cohn LH. Modern ... This is because the native valve and ascending aorta are not manipulated in any way. Calcified layers and other debris do not ... Blood continues to flow to the body's lower half through the unisolated remainder of the aorta. A lengthwise slit is made ...
... and a small wire is used to cross from the inferior vena cava into the adjacent abdominal aorta. Once the wire is across, a ... through a minimally invasive surgical incision into the aorta), and transcaval (from a temporary hole in the aorta near the ... The hole in the aorta is then sutured shut. The transcaval approach has been applied to a smaller number of patients who are ... Afterwards, the hole in the aorta is closed with a self-collapsing nitinol device designed to close holes in the heart. In the ...
In the case of a left sided IVC and the right renal vein passes behind the abdominal aorta, this is termed a retroaortic right ... In some people the left renal vein passes behind the abdominal aorta instead of in front of it, this is termed a retroaortic ... If there is both a vein passing in front of and one behind the aorta this is called a circumaortic renal vein. ... "Retroperitoneal structures on the posterior abdominal wall." (Webarchive template wayback links, Articles with short ...
... this usually happens in people with severe atherosclerosis of the large arteries such as the aorta. In the other 75% it is a ... as well as nonspecific abdominal pain, gastrointestinal hemorrhage (vomiting blood, or admixture of blood in the stool), and ... of a large autopsy series of older individuals with severe atherosclerosis of the aorta. Rapini, Ronald P.; Bolognia, Jean L.; ...
The visceral portion follows the course of the branches of the abdominal aorta between the layers of the mesenterics and other ... Between the inner surface of the general layer of the fascia which lines the interior of the abdominal and pelvic cavities, and ... folds of peritoneum which connect the various viscera to the abdominal wall. The two portions are directly continuous with each ...
A failure may result in some blood flowing into the wrong vessel (e.g.overriding aorta). The four-chambered heart and the great ... It can be an abdominal ultrasound or transvaginal ultrasound.[citation needed] If a baby is born with cyanotic heart disease, ... A small vessel, the ductus arteriosus allows blood from the pulmonary artery to pass to the aorta. The ductus arteriosus stays ... Common defects include pulmonic stenosis, aortic stenosis, and coarctation of the aorta, with other types such as bicuspid ...
Atrial Myxoma Aorta: Traumatic injury Incidence: Although injury to the thoracic aorta is often fatal, in 10% of cases that ... A second Ortner's syndrome, Ortner's syndrome II, refers to abdominal angina. Due to its low frequency of occurrence, more ... becomes dilated and can compress the aorta and the LRLN. Primary pulmonary hypertension Pulmonary emboli Malignancy (pulmonary ...
It is also the level where the abdominal aorta bifurcates into the left and right common iliac artery and just superior to the ... 2005). "Anatomical landmarks for the lumbar plexus on the posterior abdominal wall". J Neurosurg Spine. 2 (3): 335-338. doi: ...
... and renal arteries branch from the abdominal aorta. It is behind the stomach and the omental bursa, and in front of the crura ... Anatomy photo:40:10-0101 at the SUNY Downstate Medical Center - "Posterior Abdominal Wall: The Celiac Plexus" figures/chapter_ ... 32/32-6.HTM: Basic Human Anatomy at Dartmouth Medical School The Solar Plexus: Abdominal Brain By Theron Q. Dumont (Articles ...
During pregnancy, the pregnant uterus may compress the inferior vena cava and abdominal aorta, causing reduced blood flow to ...
These tend to occur in the adolescent age group and may be associated with fasting, exercise, abdominal straining, or ... a tear in the aorta) and cardiomyopathy can also result in syncope. Various medications, such as beta blockers, may cause ...
Put simply, the strain of attempting to defecate compressed the singer's abdominal aorta, shutting down his heart." However, in ...
... the point at which the abdominal aorta bifurcates into the left and right common iliac arteries Tracheal bifurcation, or the ...
Renal artery stenosis (RAS) may be associated with a localized abdominal bruit to the left or right of the midline (unilateral ... Other causes of secondary hypertension include obesity, sleep apnea, pregnancy, coarctation of the aorta, excessive eating of ... coarctation of the aorta, and primary aldosteronism. As many as one in five people with resistant hypertension have primary ... and purple abdominal stretch marks. Hyperthyroidism frequently causes weight loss with increased appetite, fast heart rate, ...
Repair should be delayed if there is life-threatening intra-abdominal or intracranial bleeding or if the patient is at risk for ... are confined to the thoracic portion of the aorta including the ascending aorta, aorta arch, and the descending aorta. Of the ... In the ascending aorta (the portion of the aorta which is almost vertical), one mechanism of injury is torsion (a two-way ... If the injury is in the descending thoracic aorta this could lead to a hemothorax. Where as an injury to the ascending aorta ...
Articles related to anatomy include: Contents: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z abdomen abdominal aorta ... anterolateral region of the neck anterolateral system antidromic antihelix antrum anulus fibrosus anulus tendineus anus aorta ... thalamostriate fibers thalamotomy thalamus thenar eminence thigh thigh bone Third trochanter third ventricle thoracic aorta ... ligament dentine dentition depressor anguli oris muscle dermatoglyphics dermatome dermis descendens cervicalis descending aorta ...
... is the first major branch of the abdominal aorta. It is about 1.25 cm in length. Branching from the aorta at thoracic vertebra ... Note that these three anterior branches of the abdominal aorta are distinct and cannot substitute for one another, although ... Animated volume-rendered CT scan of abdominal and pelvic blood vessels Abdominal part of digestive tube and its attachment to ... The celiac artery is the first major branch of the descending abdominal aorta, branching at a 90° angle. This occurs just below ...
In 1817 Cooper performed his famous operation of tying the abdominal aorta for aneurism; and in 1820 he removed an infected ... In 1808 he tried the same with the external iliac artery for a femoral aneurysm and in 1817 he ligated the aorta for an iliac ...
Stenting of coarctation of the aorta using TEVAR EVAR placement in the abdominal aorta Sethi RK, Henry AJ, Hevelone ND, Lipsitz ... Another example in the abdominal aorta is the embolization of the internal iliac artery on one side prior to coverage by an ... EVAR is also used for rupture of the abdominal and descending thoracic aorta, and in rare cases used to treat pathology of the ... open repair of abdominal aortic aneurysms in the Medicare population". New England Journal of Medicine. 358 (5): 464-74. doi: ...
Humorous views on interesting, bizarre and amusing articles, submitted by a community of millions of news junkies, with regular Photoshop contests.
Care guide for Endovascular Aneurysm Repair of Abdominal Aorta. Includes: possible causes, signs and symptoms, standard ... The mesh has hooks that help hold the graft in your abdominal aorta. The graft will prevent blood flow to the aneurysm. Instead ... He or she will move a wire through each catheter and up into your abdominal aorta. Your healthcare provider may inject contrast ... A blood clot may block the graft and decrease blood flow through your abdominal aorta. You may need more than 1 EVAR. ...
This paper describes a new sensor application that provides measuring the pressure in abdominal aorta aneurisms (AAA). Using a ... This paper describes a new sensor application that provides measuring the pressure in abdominal aorta aneurisms (AAA). Using a ...
This illustration shows that the abdominal aorta has been perforated during insertion of trocar and surgery is converted to ...
Laparoscopic Surgery - Iatrogenic Injury to the Abdominal Aorta. This medical illustration series features two comparative ... The comparative image reveals an incorrect acute angled entry penetrating one of the deep abdominal artery with resultant ...
Abdominal aorta, Atherosclerosis Abstract. Context: Atherosclerosis and its complications are still the major source of ... Method: Abdominal aorta were collected from fifty Bangladeshi male dead bodies who underwent routine postmortem examination due ... Sudy was done to find out the macroscopic extent of atherosclerotic lesion of abdominal aorta (below the origin of renal ... Percentage Area of Intimal Surface of the Infra-Renal Segment of Abdominal Aorta Affected by Atherosclerosis - A Postmortem ...
External Compression of the Abdominal Aorta Reversing Tetralogy of Fallot Cyanotic Crisis Philippe L. Baele, M.D.; Philippe L. ... Philippe L. Baele, Marie-Thérèse E. Rennotte, Francis A. Veyckemans; External Compression of the Abdominal Aorta Reversing ...
Coarctation of the Abdominal Aorta Academic Article * Comparison of left ventricular function and myocardial perfusion for ... The relationship between wall shear stress distributions and intimal thickening in the human abdominal aorta Academic Article ... Quantitative Ultrasound Measurement of Intima-Media Thickness of Abdominal Aorta and Common Carotid Arteries in Normal Term ... Intima-media thickness of the abdominal aorta of neonate with different gestational ages Academic Article ...
Background. An attempt to answer the question if it is rational to operate every patient with a ruptured abdominal aorta ... Background. An attempt to answer the question if it is rational to operate every patient with a ruptured abdominal aorta ... Are we supposed to operate every ruptured aneurysm of the abdominal aorta?. ... Are we supposed to operate every ruptured aneurysm of the abdominal aorta? ...
Boddeti Ravindra Kumar, Murudkar Pradeep Kumar H. High division abdominal aorta with tortuous iliac arteries. International ...
Abdominal Aorta. The aorta enters the abdomen behind the median arcuate ligament of the diaphragm at the level of the twelfth ... Degenerative arterial disease often affects the abdominal aorta, which may become narrowed or may dilate (abdominal aortic ... 4.89). Throughout its course, the abdominal aorta is accompanied by lymph vessels and nodes and is surrounded by a plexus of ... Four pairs of lumbar arteries usually arise from the posterolateral aspect of the aorta and supply the posterior abdominal wall ...
It is possible to identify an abdominal aortic aneurysm by clinical examination; the aneurysm may be visible on inspection or ... It is possible to identify an abdominal aortic aneurysm by clinical examination; the aneurysm may be visible on inspection or ... Place the hands on either side of the midline and identify the outermost margin of the aorta. ...
Thoracic aorta. 1. 1. 0. Thoracoabdominal aorta. 1. 0. 1. Abdominal aorta. 8. 3. 5. ...
Injuries to major abdominal vessels are uncommon but highly lethal vascular crises. Predictably, exsanguinating hemorrhage is ... Implementation of resuscitative endovascular balloon occlusion of the aorta as an alternative to resuscitative thoracotomy for ... Delayed abdominal closure in the management of ruptured abdominal aortic aneurysm. Vascular. 2009 Nov-Dec. 17(6):309-15. [QxMD ... encoded search term (Abdominal Vascular Injuries) and Abdominal Vascular Injuries What to Read Next on Medscape ...
Aortoduodenal fistula after repair of a stab injury to the abdominal aorta ... Aortoduodenal fistula after repair of a stab injury to the abdominal aorta ...
Abdominal aortic aneurysms (AAAs) are relatively common and are potentially life-threatening. Aneurysms are defined as a focal ... Abdominal examination includes palpation of the aorta and estimation of the size of the aneurysm. AAAs are palpated in the ... Radiograph shows calcification of abdominal aorta. Left wall is clearly depicted and appears aneurysmal; however, right wall ... Blaivas M, Theodoro D. Frequency of incomplete abdominal aorta visualization by emergency department bedside ultrasound. Acad ...
Adding abdominal aorta plaques to the baseline risk model improved C-statistic from 0.718 (0.684-0.751) to 0.721 (0.688-0.754) ... Previous studies have not compared carotid artery and abdominal aorta plaques in CV risk estimation. Our aim was to explore ... Comparing ultrasonographically assessed carotid and abdominal aorta plaques in cardiovascu Comparing ultrasonographically ... Both carotid and abdominal aorta plaques are significant risk factors for CV events, but only carotid plaques provide ...
Aneurysm of abdominal aorta, AAA, ruptured, cardiac arrest, deceased ... Aneurysm of abdominal aorta, AAA, ruptured, cardiac arrest, deceased. CASE. This patient suffered cardiac arrest prior to ... Aneurysm of abdominal aorta, AAA, ruptured, cardiac arrest, deceased (4247). AG. CT. MMG. MRI. NM. RF. US. X-ray. ... Despite this, unenhanced scans showed ruptured aneurysm of abdominal aorta with massive retroperitoneal hemorrhage. ...
An aneurysm of the abdominal aorta is a permanent distention of the aorta in its abdominal tract, which tends to be progressive ...
An abdominal aortic aneurysm occurs when an area of the aorta becomes very large or balloons out. ... The aorta is the main blood vessel that supplies blood to the abdomen, pelvis, and legs. ... The aorta is the main blood vessel that supplies blood to the abdomen, pelvis, and legs. An abdominal aortic aneurysm occurs ... An abdominal aortic aneurysm is most often seen in males over age 60 who have one or more risk factors. The larger the aneurysm ...
3D How To: Abdominal Aorta Exam 3D How To: Abdominal Aorta Exam. ... Abdominal Aorta Exam. 3D animation demonstrating an Aorta ...
Conformable AAA Endoprosthesis to treat an infrarenal aneurysm located in the abdominal aorta. Performance of the GORE® ... Assessment of the GORE® EXCLUDER® Conformable AAA Endoprosthesis in the Treatment of Abdominal Aortic Aneurysms. The safety and ... The EVAR procedure involves delivery of a stent- graft compressed onto a catheter to an aneurysmal segment of the aorta from a ... The EVAR procedure involves delivery of a stent- graft compressed onto a catheter to an aneurysmal segment of the aorta from a ...
Employing the rabbits abdominal aorta as a suitable atherosclerotic model, transient three-dimensional blood flow simulations ... The cell deposition pattern was altered by an exercise waveform with fewer cells attaching in the upper abdominal aorta but ... Hemodynamics simulation and identification of susceptible sites of atherosclerotic lesion formation in a model abdominal aorta. ... Hemodynamics simulation and identification of susceptible sites of atherosclerotic lesion formation in a model abdominal aorta. ...
... simulations allow for calculation of a detailed flow field in the mouse aorta and can thus be used to investigate a potential ... Restricting the geometrical model to the abdominal aorta did not influence the outcome of the CFD simulations. In conclusion, ... restricting the geometrical model to the abdominal aorta (imposing measured flows). We found that - even if there is sometimes ... Computational fluid dynamics (CFD) simulations allow for calculation of a detailed flow field in the mouse aorta and can thus ...
Before reaching the IVC, the LRV passes between two major abdominal arteries: the abdominal aorta and the superior mesenteric ... Posterior NS is less common and involves compression of the LRV between the abdominal aorta and the spine. Some experts also ... Anterior NS is more common and involves compression of the LRV between the abdominal aorta and another artery. ... anatomic irregularities, such as a small pelvis or an unusually shaped aorta ...
Horseshoe kidney with high bifurcation of abdominal aorta: a rare imaging finding ... particularly abdominal angiogram. The awareness of the variations of the abdominal aorta is of great importance during surgery ... Huang W, Ge G, Meng J, Xu Y. High bifurcation of abdominal aorta upon horseshoe kidney at the level of upper L2 vertebral body ... A high-positioned bifurcation of the abdominal aorta upon a horseshoe kidney at the level of upper L2 vertebral body was ...
Tags: Angioplasty, Aorta, Cardiology, Cholecystectomy, Chronic, Chronic Obstructive Pulmonary Disease, Coma, Embolism, Fracture ... Resection/Replacement of Abdominal Aorta. *Respiratory Failure. *Sepsis. *Stroke. *Total Hip Replacement ...
  • The part of the aorta in the chest is called the thoracic aorta. (
  • A complete evaluation of the thoracic aorta is critical in identifying the presence of significant calcific atherosclerotic disease in the ascending and descending thoracic aorta, which may preclude the approach. (
  • The descending thoracic aorta and the esophagus are palpated. (
  • This will expose the descending thoracic aorta where the distal anastomosis will be created. (
  • This procedure is indicated for aneurysmal disease involving the entire descending thoracic aorta. (
  • Thoracic Endovascular Aortic Repair (TEVAR) is performed by placing a covered stent graft into the descending thoracic aorta via transfemoral access. (
  • This complication involved the ascending thoracic aorta in 18 cases (in 16 of them as a consequence of brucellar endocarditis), and the descending thoracic aorta or the abdominal aorta in the remaining 30 cases. (
  • Increased a vdo to values typically greater than mm hg, heart rate is achieved by leaving the patient to subsequent fusion of the subjective response of arterial cannulation, the reported complication rate than adults to make a significant underlying cardiopulmonary or liver injury, thoracic aorta can cause a reaction occurs. (
  • Giant Cell Arteritis Giant cell arteritis involves predominantly the thoracic aorta, large arteries emerging from the aorta in the neck, and extracranial branches of the carotid arteries. (
  • Note aneurysms of descending aorta. (
  • Patients with peripheral artery disease (PAD) have an increased risk of abdominal aortic aneurysms (AAA), but it remains unclear whether practitioners are screening patients for AAA as part of routine PAD management. (
  • Abdominal aortic aneurysms: open surgical treatment. (
  • Subjects with abdominal aortic aneurysms having infrarenal aortic neck angulation ≤ 60˚ and infrarenal aortic neck length ≥10 mm treated with the GORE® EXCLUDER® Conformable AAA Endoprosthesis. (
  • ESVS and Copenhagen Certification Programme (ENHANCE) - Open Repair of Abdominal Aortic Aneurysms. (
  • Aneurysms involving the descending and abdominal aorta are classified as thoracoabdominal aortic aneurysms. (
  • A minimally-invasive procedure, EVAR involves the use of stent grafts to support the damaged section of the aorta and in the case of aneurysms, prevent them from rupturing. (
  • Fenestrated endovascular aortic repair (FEVAR) for repairing (using a stent graft) thoracoabdominal or complex abdominal aortic aneurysms located close to the branching arteries of the aorta. (
  • Aneurysms of the abdominal aorta (AAA) are relatively common - affecting as many as 8% of men and 1% of women over the age of 65. (
  • This guideline covers diagnosing and managing abdominal aortic aneurysms. (
  • Serious problems, such as malignant neoplasms or aneurysms of the abdominal aorta, rarely present with symptoms of the spine. (
  • Are we supposed to operate every ruptured aneurysm of the abdominal aorta? (
  • An aneurysm of the abdominal aorta is a permanent distention of the aorta in its abdominal tract, which tends to be progressive under the action of blood pressure, and is due to a weakening of the arterial wall. (
  • Sudy was done to find out the macroscopic extent of atherosclerotic lesion of abdominal aorta (below the origin of renal arteries) from Bangladeshi male of different ages. (
  • IMSEAR at SEARO: High division abdominal aorta with tortuous iliac arteries. (
  • Boddeti Ravindra Kumar, Murudkar Pradeep Kumar H. High division abdominal aorta with tortuous iliac arteries. (
  • Three arteries arise from the anterior aspect of the aorta to supply the alimentary organs, while three pairs of lateral branches pass to the suprarenals, kidneys and gonads, respectively. (
  • The suprarenal branches of the aorta ( Fig. 4.89 ) are small and variable and are often supplemented by branches from the inferior phrenic and renal arteries (Figs 4.86 & 4.92). (
  • The paired inferior phrenic arteries are the first branches of the aorta within the abdomen (Figs 4.86, 4.89 & 4.92) and often furnish small branches to the suprarenal glands before arching upwards and laterally on the abdominal surface of the diaphragm. (
  • Four pairs of lumbar arteries usually arise from the posterolateral aspect of the aorta and supply the posterior abdominal wall (Figs 4.88, 4.90 & 4.103). (
  • Before reaching the IVC, the LRV passes between two major abdominal arteries: the abdominal aorta and the superior mesenteric artery. (
  • Key Points The ascending aorta has two small branches, the left and right coronary arteries, that provide blood to the heart muscle. (
  • What are the first five arteries that branch off the aorta? (
  • The abdominal aorta runs from the diaphragm and ends just above the pelvis, where it divides into the iliac arteries. (
  • There are five arteries that branch from the abdominal aorta: the celiac artery, the superior mesenteric artery, the inferior mesenteric artery, the renal arteries and the iliac arteries. (
  • The arch's downward portion, called the descending aorta, is connected to a network of arteries that supplies most of the body with oxygen-rich blood. (
  • Only a few arteries, which are branches of the aorta, supply blood to the front part of the spinal cord. (
  • The arteries supplying all abdominal organs including the kidneys are reimplanted into the Dacron graft. (
  • The aorta from the DIAPHRAGM to the bifurcation into the right and left common iliac arteries. (
  • 3D animation demonstrating an Aorta ultrasound exam. (
  • In this study, we present such a reference data set by combining high-frequency ultrasound and contrast-enhanced micro-CT to measure (in vivo) the time-dependent volumetric flow waveforms in the complete aorta (including seven major side branches) of 10 male ApoE -/- deficient mice on a C57Bl/6 background. (
  • The second test I had was an ultrasound for abdominal aortic aneurysm. (
  • The screening process involves an ultrasound of the abdomen, measuring the width of the aorta and looking for any swelling or bulges. (
  • This will result in changes in subclinical measurements including carotid ultrasound, electron beam computer tomography of the coronary and aorta, pulse wave velocity, endothelial function, and tonometry of the radial artery. (
  • Several surgical approaches have been described for the management of adult patients with acquired heart disease and paraductal coarctation of the aorta. (
  • On the other hand, Murray's law underestimates the fraction going to the brachiocephalic trunk and strongly overestimates the fraction going to the distal aorta, influencing the outcome of the CFD results significantly. (
  • Endovascular Aneurysm repair (EVAR) is a minimally invasive procedure designed to exclude an aneurysmal segment of the aorta from blood circulation. (
  • The EVAR procedure involves delivery of a stent- graft compressed onto a catheter to an aneurysmal segment of the aorta from a remote access site, generally the femoral artery. (
  • This procedure is indicated for aneurysmal disease involving the entire descending aorta and extending below the diaphragm to the first aortic branch of the abdominal aorta. (
  • AAAs are characterized by a 50% increase in the diameter of the aneurysmal aorta compared with the normal vessel. (
  • Patients with aneurysmal dilation of the abdominal aorta, who are shown surgery. (
  • This test may be performed to see if the aorta is blocked, narrowed, leaking, or enlarged (aneurysmal). (
  • EVAR is a procedure to repair an abdominal aortic aneurysm (AAA). (
  • The specialists in our Aortic Program have particular expertise in the newest way to repair the aorta: endovascular aortic repair (EVAR). (
  • To evaluate the incidence and clinical relevance of extravascular incidental findings (EVIF), particularly malignancies, in planning and follow-up CT angiograms (CTA) of the abdominal aorta in patients who underwent endovascular aneurysm repair (EVAR) of abdominal aortic aneurysm. (
  • Endovascular aneurysm repair (EVAR) has become the predominant treatment option for patients with abdominal aortic aneurysm (AAA) accounting for 78% of all elective repair in the United States in 2010 (Dua et al. (
  • The comparative image reveals an incorrect acute angled entry penetrating one of the deep abdominal artery with resultant hemorrhage. (
  • Real-world abdominal aorta aneurysm screening patterns among patients with new or worsening of symptomatic peripheral artery disease. (
  • Anterior NS is more common and involves compression of the LRV between the abdominal aorta and another artery. (
  • The first branch of the aorta is normally the innominate artery, which is also referred to as the brachiocephalic trunk. (
  • What is the first artery to branch off the aorta? (
  • The ascending aorta ends right before the brachiocephalic artery, which is the first branch off the aortic arch. (
  • The suprarenal artery is the second branch from the abdominal aorta. (
  • The descending aorta begins after the origin of the left subclavian artery from the aortic arch and continues down through the chest to the diaphragm. (
  • The aorta is replaced from the left subclavian artery to the celiac artery with a Dacron graft. (
  • These x-rays show how blood flows through the aorta, the major artery leading out of the heart, and through the abdomen. (
  • The five main screenings are carotid artery, abdominal aortic, aneurysm screening, peripheral arterial disease. (
  • Lee CD, Jacobs DR Jr, Schreiner PJ, Iribarren C, Hankinson A. Abdominal obesity and coronary artery calcification in young adults: the Coronary Artery Risk Development in Young Adults (CARDIA) Study. (
  • The oxygen-rich blood then returns to the left atrium through the pulmonary veins, flows through the mitral valve into the left ventricle, and finally leaves your heart through another large artery, the aorta. (
  • Because the right coronary artery originates from the aorta, decreased LV output causes decreased right coronary blood flow and ischemia to the RV wall. (
  • The aorta is the main blood vessel that supplies blood to the abdomen, pelvis, and legs. (
  • An AAA is a weakening and stretching of the main blood vessel (aorta) in the abdominal (tummy) area. (
  • An Abdominal Aortic Aneurysm - or AAA - is when a swelling or bulge in the aorta, the main blood vessel running from your heart to your tummy, ruptures. (
  • Fatal splenic rupture: Evaluate patients who report left upper abdominal or shoulder pain for an enlarged spleen or splenic rupture. (
  • The aorta enters the abdomen behind the median arcuate ligament of the diaphragm at the level of the twelfth thoracic vertebra. (
  • To the right of the aorta lie the right crus of the diaphragm and the inferior vena cava (Fig. 4.89). (
  • The segment of the aorta below the diaphragm is referred to as the abdominal aorta. (
  • This illustration shows that the abdominal aorta has been perforated during insertion of trocar and surgery is converted to open surgery to repair the aorta and retroperitoneal hemorrhage. (
  • Despite this, unenhanced scans showed ruptured aneurysm of abdominal aorta with massive retroperitoneal hemorrhage. (
  • Intra-abdominal hemorrhage. (
  • Objetivo: identificar os Diagnósticos de Enfermagem (DE) mais frequentes dospacientes hospitalizados para correção de aneurisma de aorta elencados pelos enfermeiros deuma instituição hospitalar especializada em doenças cardiovasculares, e descrever o perfilsociodemográfico e clínico desses pacien. (
  • The cell deposition pattern was altered by an exercise waveform with fewer cells attaching in the upper abdominal aorta but more attaching around the renal orifices. (
  • Delayed abdominal closure in the management of ruptured abdominal aortic aneurysm. (
  • Ascending Aorta. (
  • The upward part of the arch, which is the section closest to the heart, is called the ascending aorta. (
  • After standard median sternotomy, the ascending aorta is completely mobilized to the aortic arch. (
  • The length of graft needed may be estimated using umbilical tape, routing the tape behind the IVC through the oblique sinus, and around the right atrium to the right lateral ascending aorta. (
  • The purpose of the study is to assess the safety and effectiveness of the GORE® EXCLUDER® Conformable AAA Endoprosthesis to treat an infrarenal aneurysm located in the abdominal aorta. (
  • Patients with GSWs to the abdomen require celiotomy for evaluation and treatment, although some trauma surgeons prefer selective nonoperative evaluation of abdominal GSWs in stable patients. (
  • By means of proper abdominal pain prognosis, you might have the insides of your abdomen checked out. (
  • A doctor or healthcare practitioner could conduct a bodily exam particularly a feeling of the abdomen-each side and midline to determine whether the pulsation of the abdominal aorta is regular. (
  • Background: Acute abdomen usually refers to a sudden onset severe abdominal pain that requires urgent attention. (
  • Note thickening and tortuosity of abdominal aorta proximal to kidneys. (
  • Current applications of numeric angiography in the study of cervico-cerebral vessels, the aorta, pulmonary vessels and following vascular surgery]. (
  • Kara E, Yildiz A, Oztürk NC, Oztürk H. An extremely rare bifurcation pattern of the caudal abdominal aorta: case report demonstrated by angiography. (
  • Vascular variations of the bifurcation of the abdominal aorta (BAA) are rare, and they are usually discovered incidentally. (
  • We report a unique clinically and surgically significant case of variations of the abdominal aorta as related to the location and type of bifurcation. (
  • A high-positioned bifurcation of the abdominal aorta upon a horseshoe kidney at the level of upper L2 vertebral body was detected during contrast-enhanced abdominal computed tomography scan. (
  • Huang W, Ge G, Meng J, Xu Y. High bifurcation of abdominal aorta upon horseshoe kidney at the level of upper L2 vertebral body: a rare case report. (
  • Atalar MH, Salk I, Bozbiyik N, Cetin A. Diagnosis of High Bifurcation of the Abdominal Aorta with Associated Vascular Variations: Case Report with Multidedector Computed Tomography. (
  • Posterior to the aorta lie the left lumbar veins, the anterior longitudinal ligament and the lumbar vertebral bodies. (
  • Posterior NS is less common and involves compression of the LRV between the abdominal aorta and the spine. (
  • Representative transverse CT images of the cranial abdominal region in a healthy dog depicting placement of ROIs (A) and hepatic perfusion maps generated from 6-mm (reconstructed from 3-mm) slices (B through E). A-The abdominal aorta and portal vein are selected (red and green crosses, respectively), and ROIs are placed in the liver (T1 and T2) and spleen. (
  • In addition, there were no liver abnormalities, no portal vein dilatation, no collateral veins, nor splenomegaly in the abdominal ultrasonography. (
  • Employing the rabbit's abdominal aorta as a suitable atherosclerotic model, transient three-dimensional blood flow simulations and monocyte deposition patterns were used to evaluate the following hypotheses: (i) simulation of monocyte transport through a model of the rabbit abdominal aorta yields cell deposition patterns similar to those seen in vivo, and (ii) those deposition patterns are correlated with hemodynamic wall parameters related to atherosclerosis. (
  • Arai Y, Hirose N, Yamamura K, Kimura M, Murayama A, Fujii I, Tsushima M. Long-term effect of lipid-lowering therapy on atherosclerosis of abdominal aorta in patients with hypercholesterolemia: noninvasive evaluation by a new image analysis program. (
  • The aorta is the largest blood vessel in your body. (
  • The largest blood vessel in the body, the aorta carries oxygen-rich blood from the heart to other parts of the body. (
  • It may represent the first sign of several life-threatening conditions such as a heart attack, a tear in the aorta (the largest blood vessel in the body) or a blood clot in the lungs, says Hector Lozano, MD , cardiologist at AdventHealth. (
  • The awareness of the variations of the abdominal aorta is of great importance during surgery and interventional radiological procedures to reduce complications during abdominal and spinal interventions, as well as for radiologists for precise interpretation of angiograms. (
  • The descending aorta provides important blood flow to the spinal cord. (
  • ABSTRACT Objective: To evaluate the effect of abdominal electrical stimulation (EE) on bowel movement frequency and feces consistency and expelled amount in people with constipation due to spinal cord injuries (SCI). (
  • I made my way to the bathroom floor with intense abdominal pain that took my breath away. (
  • The mesh has hooks that help hold the graft in your abdominal aorta. (
  • A blood clot may block the graft and decrease blood flow through your abdominal aorta. (
  • A graft sizer is then used to estimate the diameter of synthetic graft used, based on the size of the descending aorta. (
  • Abdominal Aortic Calcification is significantly associated with both cardiovascular heart disease and stroke even after adjustment for the traditional risk factors of age, cigarette use, diabetes mellitus, high systolic blood pressure, left ventricular hypertrophy, body mass index, and cholesterol (Szulc 2016, Schousboe 2017). (
  • The aorta supplies blood to the body. (
  • The aorta is the big blood vessel that leaves the heart and provides blood flow to the rest of the body. (
  • Conditions that fit these criteria are part of the NHS programme include bowel, breast, and cervical cancer and abdominal aortic aneurysm (a condition when a major blood vessel swells and ruptures). (
  • The aortic valve at the base of the aorta keeps the blood from flowing backward into your heart. (
  • From the aorta, the blood travels to the rest of your body. (
  • Braverman AC, Schermerhorn M. Diseases of the aorta. (
  • One of these diseases is abdominal aortic aneurysm. (
  • What Are Aorta Diseases? (
  • Genetic polymorphism and antioxidant activity in interventions of tobacco-related diseases of the abdominal aorta. (
  • The anatomy of the descending aorta makes it more favorable for endovascular approaches in some cases, however, more complex problems will still require open surgery. (
  • Care is taken not to injure the esophagus on the right, (aided by palpation of the TEE probe), and to expose enough length of aorta to allow for comfortable placement of a Satinsky or other partial occlusion vascular clamp. (
  • The descending aorta and esophagus were displaced posteriorly. (
  • The atherosclerotic lesions were stained red by treating the aorta with sudden IV. (
  • Hemodynamics simulation and identification of susceptible sites of atherosclerotic lesion formation in a model abdominal aorta. (
  • The wall stress gradient, the wall shear stress angle gradient and the normalized monocyte deposition fraction were correlated with the distribution of monocytes along the abdominal aorta and monocyte deposition is correlated with the measured distribution of monocytes around the major abdominal branches in the cholesterol-fed rabbit. (
  • Inflammatory abdominal aortic aneurysm: a cause of urinary obstruction and acute renal failure. (
  • We are available 24 hours per day, seven days per week to receive emergency referrals from any regional physician or emergency department if an acute syndrome related to the aorta is suspected. (
  • In the setting of acute flank or abdominal pain with high LDH levels and little or no rise in serum aminotransferase values, clinicians should consider the diagnosis of renal infarction and obtain a contrast-enhanced CT scan. (
  • Degenerative arterial disease often affects the abdominal aorta, which may become narrowed or may dilate (abdominal aortic aneurysm) and rupture causing fatal internal haemorrhage. (
  • CT of blunt abdominal and pelvic vascular injury. (
  • Laparoscopic Surgery - Iatrogenic Injury to the Abdominal Aorta. (
  • Prevalence and outcome of abdominal vascular injury in severe trauma patients based on a TraumaRegister DGU international registry analysis. (
  • Abdominal vascular injury. (
  • We have shown in several studies that the potential benefits of HRT are limited by lifestyle, cofactors, specifically weight gain, obesity and increased visceral abdominal fat associated metabolic changes in lipoproteins, inflammatory markers and estrogen metabolites. (
  • When pain in the abdominal area is because of these body organs, and not just mere stomach pain, abdominal pains or bellyache, a far more thorough exam is necessary to guarantee which organ demands quick medical help. (
  • A-The abdominal aorta is selected (cross) and 2 ROIs are placed in the pancreas (T1 and T2) and liver (T3 and T4). (
  • The donor pancreas is retrieved en bloc with the duodenum, which is transected and stapled proximally just beyond the pylorus and distally in the third part of the duodenum. (
  • An attempt to answer the question if it is rational to operate every patient with a ruptured abdominal aorta aneurysm (rAAA) is undertaken in this paper by a retrospective evaluation of the significant factors which strongly influence the fatal outcome of surgical treatment. (
  • Restricting the geometrical model to the abdominal aorta did not influence the outcome of the CFD simulations. (