AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesDisciplines and OccupationsInformation ScienceGeographicals
Heart VentriclesMyocardiumHeartHeart RateCerebral VentriclesThird VentricleFourth VentricleHeart FailureLateral VentriclesHeart Defects, CongenitalCerebral Ventricle NeoplasmsHeart DiseasesHeart TransplantationFetal HeartHeart AtriaMyocardial ContractionHeart ValvesVentricular FunctionVentricular Function, LeftHeart BlockEchocardiographyHemodynamicsDogsHeart Function TestsMyocytes, CardiacHeart SeptumCardiomegalyEndocardiumVentricular Function, RightStroke VolumeMyocardial IschemiaEncyclopedias as TopicChordae TendineaeTruncus ArteriosusTricuspid ValveMitral ValveHeart MurmursHeart AuscultationPhonocardiographyVentricular Dysfunction, LeftBlalock-Taussig ProcedureFontan ProcedureNorwood ProceduresPhiladelphiaHeart Bypass, RightTricuspid Valve InsufficiencyPapillary MusclesMuscle ContractionVentricular Premature ComplexesTricuspid Valve StenosisAntarctic RegionsMyoglobinPerciformesBiologyFishesSeals, Earless
Heart Ventricles: The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.Myocardium: The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.Heart: The hollow, muscular organ that maintains the circulation of the blood.Heart Rate: The number of times the HEART VENTRICLES contract per unit of time, usually per minute.Cerebral Ventricles: Four CSF-filled (see CEREBROSPINAL FLUID) cavities within the cerebral hemispheres (LATERAL VENTRICLES), in the midline (THIRD VENTRICLE) and within the PONS and MEDULLA OBLONGATA (FOURTH VENTRICLE).Third Ventricle: A narrow cleft inferior to the CORPUS CALLOSUM, within the DIENCEPHALON, between the paired thalami. Its floor is formed by the HYPOTHALAMUS, its anterior wall by the lamina terminalis, and its roof by EPENDYMA. It communicates with the FOURTH VENTRICLE by the CEREBRAL AQUEDUCT, and with the LATERAL VENTRICLES by the interventricular foramina.Fourth Ventricle: An irregularly shaped cavity in the RHOMBENCEPHALON, located between the MEDULLA OBLONGATA; the PONS; and the isthmus in front, and the CEREBELLUM behind. It is continuous with the central canal of the cord below and with the CEREBRAL AQUEDUCT above, and through its lateral and median apertures it communicates with the SUBARACHNOID SPACE.Heart Failure: A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.Lateral Ventricles: Cavity in each of the CEREBRAL HEMISPHERES derived from the cavity of the embryonic NEURAL TUBE. They are separated from each other by the SEPTUM PELLUCIDUM, and each communicates with the THIRD VENTRICLE by the foramen of Monro, through which also the choroid plexuses (CHOROID PLEXUS) of the lateral ventricles become continuous with that of the third ventricle.Heart Defects, Congenital: Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.Cerebral Ventricle Neoplasms: Neoplasms located in the brain ventricles, including the two lateral, the third, and the fourth ventricle. Ventricular tumors may be primary (e.g., CHOROID PLEXUS NEOPLASMS and GLIOMA, SUBEPENDYMAL), metastasize from distant organs, or occur as extensions of locally invasive tumors from adjacent brain structures.Heart Diseases: Pathological conditions involving the HEART including its structural and functional abnormalities.Heart Transplantation: The transference of a heart from one human or animal to another.Fetal Heart: The heart of the fetus of any viviparous animal. It refers to the heart in the postembryonic period and is differentiated from the embryonic heart (HEART/embryology) only on the basis of time.Heart Atria: The chambers of the heart, to which the BLOOD returns from the circulation.Myocardial Contraction: Contractile activity of the MYOCARDIUM.Heart Valves: Flaps of tissue that prevent regurgitation of BLOOD from the HEART VENTRICLES to the HEART ATRIA or from the PULMONARY ARTERIES or AORTA to the ventricles.Ventricular Function: The hemodynamic and electrophysiological action of the HEART VENTRICLES.Ventricular Function, Left: The hemodynamic and electrophysiological action of the left HEART VENTRICLE. Its measurement is an important aspect of the clinical evaluation of patients with heart disease to determine the effects of the disease on cardiac performance.Heart Block: Impaired conduction of cardiac impulse that can occur anywhere along the conduction pathway, such as between the SINOATRIAL NODE and the right atrium (SA block) or between atria and ventricles (AV block). Heart blocks can be classified by the duration, frequency, or completeness of conduction block. Reversibility depends on the degree of structural or functional defects.Echocardiography: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.Hemodynamics: The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.Dogs: 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)Heart Function Tests: Examinations used to diagnose and treat heart conditions.Myocytes, Cardiac: Striated muscle cells found in the heart. They are derived from cardiac myoblasts (MYOBLASTS, CARDIAC).Heart Septum: This structure includes the thin muscular atrial septum between the two HEART ATRIA, and the thick muscular ventricular septum between the two HEART VENTRICLES.Cardiomegaly: Enlargement of the HEART, usually indicated by a cardiothoracic ratio above 0.50. Heart enlargement may involve the right, the left, or both HEART VENTRICLES or HEART ATRIA. Cardiomegaly is a nonspecific symptom seen in patients with chronic systolic heart failure (HEART FAILURE) or several forms of CARDIOMYOPATHIES.Endocardium: The innermost layer of the heart, comprised of endothelial cells.Ventricular Function, Right: The hemodynamic and electrophysiological action of the right HEART VENTRICLE.Stroke Volume: The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.Myocardial Ischemia: A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Chordae Tendineae: The tendinous cords that connect each cusp of the two atrioventricular HEART VALVES to appropriate PAPILLARY MUSCLES in the HEART VENTRICLES, preventing the valves from reversing themselves when the ventricles contract.Truncus Arteriosus: The arterial trunk arising from the fetal heart. During development, it divides into AORTA and the PULMONARY ARTERY.Tricuspid Valve: The valve consisting of three cusps situated between the right atrium and right ventricle of the heart.Mitral Valve: The valve between the left atrium and left ventricle of the heart.Heart Murmurs: Heart sounds caused by vibrations resulting from the flow of blood through the heart. Heart murmurs can be examined by HEART AUSCULTATION, and analyzed by their intensity (6 grades), duration, timing (systolic, diastolic, or continuous), location, transmission, and quality (musical, vibratory, blowing, etc).Heart Auscultation: Act of listening for sounds within the heart.Phonocardiography: Graphic registration of the heart sounds picked up as vibrations and transformed by a piezoelectric crystal microphone into a varying electrical output according to the stresses imposed by the sound waves. The electrical output is amplified by a stethograph amplifier and recorded by a device incorporated into the electrocardiograph or by a multichannel recording machine.Ventricular Dysfunction, Left: A condition in which the LEFT VENTRICLE of the heart was functionally impaired. This condition usually leads to HEART FAILURE; MYOCARDIAL INFARCTION; and other cardiovascular complications. Diagnosis is made by measuring the diminished ejection fraction and a depressed level of motility of the left ventricular wall.Blalock-Taussig Procedure: A cardiovascular procedure performed to create a blood supply to the PULMONARY CIRCULATION. It involves making a connection between the subclavian, or carotid branch of the AORTA, or the AORTIC ARCH to the PULMONARY ARTERY.Fontan Procedure: A procedure in which total right atrial or total caval blood flow is channeled directly into the pulmonary artery or into a small right ventricle that serves only as a conduit. The principal congenital malformations for which this operation is useful are TRICUSPID ATRESIA and single ventricle with pulmonary stenosis.Norwood Procedures: A set of surgical procedures performed to establish sufficient outflow to the systemic circulation in individuals with univentricular congenital heart malformations, such as HYPOPLASTIC LEFT HEART SYNDROME, and MITRAL VALVE atresia, associated with systemic outflow obstruction. Follow-on surgeries may be performed and consist of a HEMI-FONTAN PROCEDURE as the stage 2 Norwood procedure and a FONTAN PROCEDURE as the stage 3 Norwood procedure.PhiladelphiaHeart Bypass, Right: Diversion of the flow of blood from the entrance to the right atrium directly to the pulmonary arteries, avoiding the right atrium and right ventricle (Dorland, 28th ed). This a permanent procedure often performed to bypass a congenitally deformed right atrium or right ventricle.Tricuspid Valve Insufficiency: Backflow of blood from the RIGHT VENTRICLE into the RIGHT ATRIUM due to imperfect closure of the TRICUSPID VALVE.Papillary Muscles: Conical muscular projections from the walls of the cardiac ventricles, attached to the cusps of the atrioventricular valves by the chordae tendineae.Muscle Contraction: 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.Ventricular Premature Complexes: A type of cardiac arrhythmia with premature contractions of the HEART VENTRICLES. It is characterized by the premature QRS complex on ECG that is of abnormal shape and great duration (generally >129 msec). It is the most common form of all cardiac arrhythmias. Premature ventricular complexes have no clinical significance except in concurrence with heart diseases.Tricuspid Valve Stenosis: The pathologic narrowing of the orifice of the TRICUSPID VALVE. This hinders the emptying of RIGHT ATRIUM leading to elevated right atrial pressure and systemic venous congestion. Tricuspid valve stenosis is almost always due to RHEUMATIC FEVER.Antarctic Regions: The continent lying around the South Pole and the southern waters of the Atlantic, Pacific, and Indian Oceans. It includes the Falkland Islands Dependencies. (From Webster's New Geographical Dictionary, 1988, p55)Myoglobin: A conjugated protein which is the oxygen-transporting pigment of muscle. It is made up of one globin polypeptide chain and one heme group.Perciformes: The most diversified of all fish orders and the largest vertebrate order. It includes many of the commonly known fish such as porgies, croakers, sunfishes, dolphin fish, mackerels, TUNA, etc.Biology: One of the BIOLOGICAL SCIENCE DISCIPLINES concerned with the origin, structure, development, growth, function, genetics, and reproduction of animals, plants, and microorganisms.Fishes: A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.Seals, Earless: The family Phocidae, suborder PINNIPEDIA, order CARNIVORA, comprising the true seals. They lack external ears and are unable to use their hind flippers to walk. It includes over 18 species including the harp seal, probably the best known seal species in the world.

Phasic right coronary artery blood flow in conscious dogs with normal and elevated right ventricular pressures. (1/10358)

We studied phasic right coronary blood flow in well trained normal dogs and dogs with pulmonic stenosis. We installed electromagnetic flow transducers and pressure tubes under anesthesia to monitor right coronary blood flow, cardiac output, central aortic blood pressure, and right ventribular pressure. In normotensive dogs, systolic flow amplitude equaled early diastolic flow levels. The ratio of systolic to diastolic flow at rest was substantially greater in the right coronary bed (36+/-1.3%) than in the left circumflex bed (13+/-3.6%). Right diastolid flow runoff, including the cove late in diastole, resembled left circumflex runoff. Blood flow to the normotensive right (37+/-1.1 ml/min 100(-1) g) and the left (35+/-1.0 ml/min(-1) g) ventricular myocardium indicated equal perfusion of both cardiac walls. Throttling of systolic flow was related directly to the right ventricular systolic pressure level in the dogs with pulmonic stenosis. Retrograde systolic flow occurred in severe right ventricular hypertension. The late diastolic runoff pattern in dogs with pulmonic stenosis appeared the same as for the normotensive dogs. We obtained systolic to diastolic flow ratios of 1/3 the value of normotensive hearts in high and severe pulmonic hypertension. Electrocardiograms and studies of pathology suggested restricted blood flow to the inner layers of the right myocardium in the dogs with severe and high right ventricular hypertension. Normotensive and hypertensive peak hyperemic flow responses were similar, except for an increased magnitude of diastolic flow, with proportionately less systolic flow in hypertensive states.  (+info)

Regulation of chamber-specific gene expression in the developing heart by Irx4. (2/10358)

The vertebrate heart consists of two types of chambers, the atria and the ventricles, which differ in their contractile and electrophysiological properties. Little is known of the molecular mechanisms by which these chambers are specified during embryogenesis. Here a chicken iroquois-related homeobox gene, Irx4, was identified that has a ventricle-restricted expression pattern at all stages of heart development. Irx4 protein was shown to regulate the chamber-specific expression of myosin isoforms by activating the expression of the ventricle myosin heavy chain-1 (VMHC1) and suppressing the expression of the atrial myosin heavy chain-1 (AMHC1) in the ventricles. Thus, Irx4 may play a critical role in establishing chamber-specific gene expression in the developing heart.  (+info)

Insulin-like growth factor-1 induces Mdm2 and down-regulates p53, attenuating the myocyte renin-angiotensin system and stretch-mediated apoptosis. (3/10358)

Insulin-like growth factor (IGF)-1 inhibits apoptosis, but its mechanism is unknown. Myocyte stretching activates p53 and p53-dependent genes, leading to the formation of angiotensin II (Ang II) and apoptosis. Therefore, this in vitro system was used to determine whether IGF-1 interfered with p53 function and the local renin-angiotensin system (RAS), decreasing stretch-induced cell death. A single dose of 200 ng/ml IGF-1 at the time of stretching decreased myocyte apoptosis 43% and 61% at 6 and 20 hours. Ang II concentration was reduced 52% at 20 hours. Additionally, p53 DNA binding to angiotensinogen (Aogen), AT1 receptor, and Bax was markedly down-regulated by IGF-1 via the induction of Mdm2 and the formation of Mdm2-p53 complexes. Concurrently, the quantity of p53, Aogen, renin, AT1 receptor, and Bax was reduced in stretched myocytes exposed to IGF-1. Conversely, Bcl-2 and the Bcl-2-to-Bax protein ratio increased. The effects of IGF-1 on cell death, Ang II synthesis, and Bax protein were the consequence of Mdm2-induced down-regulation of p53 function. In conclusion, the anti-apoptotic impact of IGF-1 on stretched myocytes was mediated by its capacity to depress p53 transcriptional activity, which limited Ang II formation and attenuated the susceptibility of myocytes to trigger their endogenous cell death pathway.  (+info)

Adenoviral gene transfer of the human V2 vasopressin receptor improves contractile force of rat cardiomyocytes. (4/10358)

BACKGROUND: In congestive heart failure, high systemic levels of the hormone arginine vasopressin (AVP) result in vasoconstriction and reduced cardiac contractility. These effects are mediated by the V1 vasopressin receptor (V1R) coupled to phospholipase C beta-isoforms. The V2 vasopressin receptor (V2R), which promotes activation of the Gs/adenylyl cyclase system, is physiologically expressed in the kidney but not in the myocardium. Expression of a recombinant V2R (rV2R) in the myocardium could result in a positive inotropic effect via the endogenous high concentrations of AVP in heart failure. METHODS AND RESULTS: A recombinant adenovirus encoding the human V2R (Ad-V2R) was tested for its ability to modulate the cardiac Gs/adenylyl cyclase system and to potentiate contractile force in rat ventricular cardiomyocytes and in H9c2 cardiomyoblasts. Ad-V2R infection resulted in a virus concentration-dependent expression of the transgene and led to a marked increase in cAMP formation in rV2R-expressing cardiomyocytes after exposure to AVP. Single-cell shortening measurements showed a significant agonist-induced contraction amplitude enhancement, which was blocked by the V2R antagonist, SR 121463A. Pretreatment of Ad-V2R-infected cardiomyocytes with AVP led to desensitization of the rV2R after short-term agonist exposure but did not lead to further loss of receptor function or density after long-term agonist incubation, thus demonstrating resistance of the rV2R to downregulation. CONCLUSIONS: Adenoviral gene transfer of the V2R in cardiomyocytes can modulate the endogenous adenylyl cyclase-signal transduction cascade and can potentiate contraction amplitude in cardiomyocytes. Heterologous expression of cAMP-forming receptors in the myocardium could lead to novel strategies in congestive heart failure by bypassing the desensitized beta-adrenergic receptor signaling.  (+info)

An inhibitor of p38 mitogen-activated protein kinase protects neonatal cardiac myocytes from ischemia. (5/10358)

Cellular ischemia results in activation of a number of kinases, including p38 mitogen-activated protein kinase (MAPK); however, it is not yet clear whether p38 MAPK activation plays a role in cellular damage or is part of a protective response against ischemia. We have developed a model to study ischemia in cultured neonatal rat cardiac myocytes. In this model, two distinct phases of p38 MAPK activation were observed during ischemia. The first phase began within 10 min and lasted less than 1 h, and the second began after 2 h and lasted throughout the ischemic period. Similar to previous studies using in vivo models, the nonspecific activator of p38 MAPK and c-Jun NH2-terminal kinase, anisomycin, protected cardiac myocytes from ischemic injury, decreasing the release of cytosolic lactate dehydrogenase by approximately 25%. We demonstrated, however, that a selective inhibitor of p38 MAPK, SB 203580, also protected cardiac myocytes against extended ischemia in a dose-dependent manner. The protective effect was seen even when the inhibitor was present during only the second, sustained phase of p38 MAPK activation. We found that ischemia induced apoptosis in neonatal rat cardiac myocytes and that SB 203580 reduced activation of caspase-3, a key event in apoptosis. These results suggest that p38 MAPK induces apoptosis during ischemia in cardiac myocytes and that selective inhibition of p38 MAPK could be developed as a potential therapy for ischemic heart disease.  (+info)

Taurine modulates I(Kr) but I(Ks) in guinea-pig ventricular cardiomyocytes. (6/10358)

1. Effects of taurine on the delayed rectifier K+ current (I(K)) in isolated guinea-pig ventricular cardiomyocytes were examined at different intracellular Ca2+ concentration ([Ca2+]i), using whole-cell voltage and current clamp techniques. Experiments were performed at 36 degrees C. 2. Addition of taurine (10-20 mM) decreased the action potential duration (APD) at pCa 8, but increased the APD at pCa 6. Taurine (20 mM) enhanced I(K) at 70 mV by 22.4 +/- 3.1% (n = 6, P < 0.01) at pCa 8, whereas taurine inhibited the I(K) by 27.1 +/- 2.7% (n = 6, P < 0.01) at pCa 6. These responses behaved in a concentration-dependent manner. 3. The I(K) is composed of the rapid and slow components (I(Kr) and I(Ks)). When [Ca2+]i was pCa 6, taurine at 20 mM reduced the tail current of I(Kr) at 70 mV by 16.5 +/- 2.7% (n = 5, P < 0.05) and that of I(Ks) at 70 mV by 27.1 +/- 2.8% (n = 6, P < 0.01). In contrast, at pCa 8, the tail currents of I(Kr) and I(Ks) at 70 mV were enhanced by 13.4 +/- 3.2% (n = 7, P < 0.05) and by 22.4 +/- 3.1% (n = 7, P < 0.01), respectively. The voltages of half-maximum activation (V1/2) for I(Kr) and I(Ks) were not modified by taurine. 4. Addition of E-4031 (5 microM) to taurine had a complete blockade of the tail current of I(Kr), but not I(Ks). The remained tail current (I(Ks)) in the presence of E-4031 (5 microM) was not affected by taurine (20 mM), but was blocked by 293B (30 microM). 5. These results indicate that taurine modulates I(Kr) but not I(Ks), depending on [Ca2+]i, resulting in regulation of the APD.  (+info)

A comparison of an A1 adenosine receptor agonist (CVT-510) with diltiazem for slowing of AV nodal conduction in guinea-pig. (7/10358)

1. The purpose of this study was to compare the pharmacological properties (i.e. the AV nodal depressant, vasodilator, and inotropic effects) of two AV nodal blocking agents belonging to different drug classes; a novel A1 adenosine receptor (A1 receptor) agonist, N-(3(R)-tetrahydrofuranyl)-6-aminopurine riboside (CVT-510), and the prototypical calcium channel blocker diltiazem. 2. In the atrial-paced isolated heart, CVT-510 was approximately 5 fold more potent to prolong the stimulus-to-His bundle (S-H interval), a measure of slowing AV nodal conduction (EC50 = 41 nM) than to increase coronary conductance (EC50 = 200 nM). At concentrations of CVT-510 (40 nM) and diltiazem (1 microM) that caused equal prolongation of S-H interval (approximately 10 ms), diltiazem, but not CVT-510, significantly reduced left ventricular developed pressure (LVP) and markedly increased coronary conductance. CVT-510 shortened atrial (EC50 = 73 nM) but not the ventricular monophasic action potentials (MAP). 3. In atrial-paced anaesthetized guinea-pigs, intravenous infusions of CVT-510 and diltiazem caused nearly equal prolongations of P-R interval. However, diltiazem, but not CVT-510, significantly reduced mean arterial blood pressure. 4. Both CVT-510 and diltiazem prolonged S-H interval, i.e., slowed AV nodal conduction. However, the A1 receptor-selective agonist CVT-510 did so without causing the negative inotropic, vasodilator, and hypotensive effects associated with diltiazem. Because CVT-510 did not affect the ventricular action potential, it is unlikely that this agonist will have a proarrythmic action in ventricular myocardium.  (+info)

Effects of tumour necrosis factor-alpha on left ventricular function in the rat isolated perfused heart: possible mechanisms for a decline in cardiac function. (8/10358)

1. The cardiac depressant actions of TNF were investigated in the isolated perfused rat heart under constant flow (10 ml min(-1)) and constant pressure (70 mmHg) conditions, using a recirculating (50 ml) mode of perfusion. 2. Under constant flow conditions TNF (20 ng ml(-1)) caused an early (< 25 min) decrease in left ventricular developed pressure (LVDP), which was maintained for 90 min (LVDP after 90 min: control vs TNF; 110 +/- 4 vs 82 +/- 10 mmHg, P < 0.01). 3. The depression in cardiac function seen with TNF under constant flow conditions, was blocked by the ceramidase inhibitor N-oleoylethanolamine (NOE), 1 microM, (LVDP after 90 min: TNF vs TNF with NOE; 82 +/- 10 vs 11 +/- 5 mmHg, P < 0.05). 4. In hearts perfused at constant pressure, TNF caused a decrease in coronary flow rate (change in flow 20 min after TNF: control vs TNF; -3.0 +/- 0.9 vs -8.7 +/- 1.2 ml min(-1), P < 0.01). This was paralleled by a negative inotropic effect (change in LVDP 20 min after TNF: control vs TNF; -17 +/- 7 vs -46 +/- 6 mmHg, P < 0.01). The decline in function was more rapid and more severe than that seen under conditions of constant flow. 5. These data indicate that cardiac function can be disrupted by TNF on two levels, firstly via a direct, ceramidase dependant negative inotropic effect, and secondly via an indirect coronary vasoconstriction.  (+info)

Human Heart Ventricle, right (Arrhythmia, infarct) tissue lysate | GeneTexHuman Heart Ventricle, right (Arrhythmia, infarct) tissue lysate | GeneTex
, Human Heart Ventricle, right (Arrhythmia, infarct) tissue lysate, GTX25574, Applications: ELISA, IP, WB; ELISA, Immunoprecipitation, Western Blot (WB); CrossReactivity:
Left vs right ventricle of heartLeft vs right ventricle of heart
... Apr 24, 2011 Left Ventricle vs Right Ventricle. The heart has several parts in it. This would include the left and right atrium and the left and right ventricle. Both of the left and right ventricles have a particular difference when it comes to their functions. The ventricles are the two lower chambers of the heart. left vs right ventricle of heart The left ventricle has very thick myocardium and wall whereas correct ventricle has thinner myocardium and wall. Right ventricle has lower pressure system. Left ventricle produces four to six situations as so much pressure than correct. Right ventricle receives deoxygenated blood from the correct atrium by means of the tricuspid valve. Jan 13, 2016 Mechanisms Underlying Left Ventricle versus Right Ventricle Differences. The electrophysiological differences between the LV and RV can at least partially be attributed to the distinct embryological origin of the LV, arising from the first heart field, and the RV, arising from the
Inositol Phosphate Production in the Left Ventricle following Induction of Acute Hypertension | Clinical ScienceInositol Phosphate Production in the Left Ventricle following Induction of Acute Hypertension | Clinical Science
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Gene expression profiling and cardiac remodelling: Comparing pressure versus volume overloaded human left ventricle - Radcliffe...Gene expression profiling and cardiac remodelling: Comparing pressure versus volume overloaded human left ventricle - Radcliffe...
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Reference values for fetal tissue velocity imaging and a new approach to evaluate fetal myocardial function | Cardiovascular...Reference values for fetal tissue velocity imaging and a new approach to evaluate fetal myocardial function | Cardiovascular...
Myocardial function can be evaluated using color-coded tissue velocity imaging (TVI) to analyze the longitudinal myocardial velocity profile, and by expressing the motion of the atrioventricular plane during a cardiac cycle as coordinated events in the cardiac state diagram (CSD). The objective of this study was to establish gestational age specific reference values for fetal TVI measurements and to introduce the CSD as a potential aid in fetal myocardial evaluation. TVI recordings from 125 healthy fetuses, at 18 to 42 weeks of gestation, were performed with the transducer perpendicular to the apex to provide a four-chamber view. The myocardial velocity data was extracted from the basal segment of septum as well as the left and right ventricular free wall for subsequent offline analysis. During a cardiac cycle the longitudinal peak velocities of septum increased with gestational age, as did the peak velocities of the left and right ventricular free wall, except for the peak velocity of post ejection.
Magnetic-resonance-imaging-derived indices for the normalization of left ventricular morphology by body size. - Radcliffe...Magnetic-resonance-imaging-derived indices for the normalization of left ventricular morphology by body size. - Radcliffe...
Scaling left ventricular (LV) mass and other cardiac dimensions to account for individual body size is important. The traditional method of simple ratio scaling using, for example, body surface area (BSA) assumes a linear and proportional relationship and accurate measurement of both LV mass and BSA. These assumptions can be questioned; hence, we examined the appropriateness of methods and different indices using highly accurate magnetic resonance imaging scans. Cardiac and whole-body scans were performed in 172 young, healthy, male subjects (age range, 17-28 years) to assess LV mass, volume, linear dimensions, lean body mass and fat mass. Height, body mass and BSA were determined anthropometrically. Relationships were examined for linearity and closeness of fit using log-log least-squares linear regression to determine the slope exponent b (where 1.0 indicates linearity). The relationship between LV mass and lean body mass (b=.90+/-.15; r(2)=.66) was linear and geometrically consistent. This was also
Transit of blood flow through thehuman left ventricle mapped by cardiovascular magnetic resonanceTransit of blood flow through thehuman left ventricle mapped by cardiovascular magnetic resonance
BACKGROUND:. The transit of blood through the beating heart is a basic aspect of cardiovascular physiology which remains incompletely studied. Quantification of the components of multidirectional flow in the normal left ventricle (LV) is lacking, making it difficult to put the changes observed with LV dysfunction and cardiac surgery into context.. METHODS:. Three dimensional, three directional, time resolved magnetic resonance phase-contrast velocity mapping was performed at 1.5 Tesla in 17 normal subjects, 6 female, aged 44+/-14 years (mean+/-SD). We visualized and measured the relative volumes of LV flow components and the diastolic changes in inflowing kinetic energy (KE). Of total diastolic inflow volume, 44+/-11% followed a direct, albeit curved route to systolic ejection (videos 1 and 2), in contrast to 11% in a subject with mildly dilated cardiomyopathy (DCM), who was included for preliminary comparison (video 3). In normals, 16+/-8% of the KE of inflow was conserved to the end of ...
Difference Between Left Ventricle and Right Ventricle | Difference BetweenDifference Between Left Ventricle and Right Ventricle | Difference Between
Left Ventricle vs Right Ventricle The heart has several parts in it. This would include the left and right atrium and the left and right ventricle. Both of the
The Heart - Revision Cards in A Level and IB ScienceThe Heart - Revision Cards in A Level and IB Science
The cardiac cycle is the cycle of events that occur as the heart contracts. There are 2 phases of the cardiac cycle; systole and diastole. At the diastole phase, the heart ventricles are relaxed and the heart fills with blood. In the systole phase, the ventricles contract and pump blood into the arteries.. ...
3d diagram of the human heart which I am using for a KS2 classroom display. Left ventricle and right ventricle contain sealed...3d diagram of the human heart which I am using for a KS2 classroom display. Left ventricle and right ventricle contain sealed...
3d diagram of the human heart which I am using for a KS2 classroom display. Left ventricle and right ventricle contain sealed food bags with paint for pupils to feel and squeeze, representing oxygenated and deoxygenated blood. Really pleased with the result.
Ca2 Sensitivity - Muscle Contraction - Fitness VIPCa2 Sensitivity - Muscle Contraction - Fitness VIP
The pCa curve can shift to the left increased Ca2+ sensitivity or to the right decreased Ca2+ sensitivity. The extent of shift can be estimated from the difference of the pCa values at 50% activity. The shift may be small, 0.05 pCa, or large ,1.0 pCa.. There are several factors, which influence the Ca2+ sensitivity of the myocardium. In case of the Force - pCa relationship the factors are:TN-I phosphorylation, p-tropomyosin, aging, acidosis, sarcomere length, temperature, ionic strength, caffeine, or other agents (Bers, 2001). It should be mentioned that most Force - pCa relationship were measured on cardiac myofilaments with their sarcolemma removed by Triton treatment, skinned fibres; the Ca2+ sensitivity of the skinned preparations may differ from those of intact heart ventricles.. Some authors attribute the differences in Ca2+ sensitivity among hearts of various animals, frog, guinea pig, rat, rabbit, or cow, to differences in their TN-C content. On the other hand, others feel that the ...
Difference Between Left and Right Ventricle | Definition, Anatomy, Physiology, DiseasesDifference Between Left and Right Ventricle | Definition, Anatomy, Physiology, Diseases
What is the difference between Left and Right Ventricle? Left ventricle is the left lower chamber of the heart while right ventricle is the right lower ..
Update on my Heart - Ejection Fraction RateUpdate on my Heart - Ejection Fraction Rate
Your left ventricle forces oxygen-rich blood into your arteries, which carry it throughout your body. The blood returns to the right atrium, which passes it down to the right ventricle. The right ventricle pumps this blood to the lungs, where it picks up oxygen. Oxygen-rich blood then returns to the left atrium, which dumps it into the left ventricle, and the cycle repeats. Valves between the chambers prevent "backwash.". When the left ventricle contracts, forcing blood out into the body, its called "ejection" since it is "ejecting" the blood out into your arteries. Since the big pumper on the lower left is the one that pushes blood throughout your body, that is where they usually measure heart function - the left ventricle ...
Patent US8007428 - Cardiac ventricular geometry restoration device and treatment for heart failure - Google PatentsPatent US8007428 - Cardiac ventricular geometry restoration device and treatment for heart failure - Google Patents
Methods for cardiac ventricular restoration include delivering an implantable expandable device into the ventricle via a catheter. The expandable device is anchored either to the wall of the left ventricle or to the inter-ventricular septum and then expanded. When expanded, the device assumes a size and shape which fills the lower portion of the ventricular cavity restoring the normal volume and ellipsoid shape of the remaining portion of the cavity and favorably altering myocardial oxygen demand and wall stress.
Trabeculae carneae as models of the ventricular walls: implications for the delivery of oxygen | JGPTrabeculae carneae as models of the ventricular walls: implications for the delivery of oxygen | JGP
Cardiac ventricular trabeculae carneae are naturally arising "strands" of axially arranged cardiac tissues present in both ventricles of the heart. They are minute, seldom ,3 mm in length and 50-500 µm in diameter. Because of these features, they are much favored by experimentalists for the study of the ionic, mechanical, and metabolic function of cardiac muscle. Those most favored arise from the free wall and insert into the atrioventricular ring, but they can be found in almost any location within either ventricle. For studies of myocardial function, specimens that are free-running from origin to insertion are sought. Implicit in their use is the assumption that their tissues are homologous with those of the ventricular free walls and septum. An obvious index of homology is the extent of capillarization. Curiously, and despite the implicit assumption, the literature lacks an explicit test of homology for specimens from either ventricle.. However, in an extensive series of investigations over ...
The Left Ventricle of the Heart - 846 Words | BartlebyThe Left Ventricle of the Heart - 846 Words | Bartleby
Free Essay: The Left Ventricle of the Heart The left ventricle is one of the four hollow chambers of the heart. Being the largest chamber, it has an ovular...
Search Articles | University of Toronto LibrariesSearch Articles | University of Toronto Libraries
The manner of packing together of the cardiomyocytes within the walls of the cardiac ventricles has now been investigated for over half a millennium. In 1669 ...
Symptoms and Causes of Double Inlet Left VentricleSymptoms and Causes of Double Inlet Left Ventricle
Double inlet left ventricle (DILV) is a rare condition and its exact etiology is currently unknown. It occurs in 5 to 10 out of 100 000 births. It is suspected to be due to abnormal development of the heart tube during intrauterine life and it leads to the mal-development of heart valves and chambers. As a result, only one heart chamber is actively involved in pumping of blood.
What is the cure for an enlarged left ventricle with reduced contraction?What is the cure for an enlarged left ventricle with reduced contraction?
Can you please give me information on a |b|severely dilated left ventricle with moderate global systolic dyfuction|/b|? My sister has been diagnosed with this.
Treatment for Your Childs Hypoplastic Ventricle: Stage I | Northwestern MedicineTreatment for Your Child's Hypoplastic Ventricle: Stage I | Northwestern Medicine
The most common treatment for hypoplastic ventricle is heart surgery. This is often done in 3 stages. This sheet helps you understand the surgery that is done during stage I.
Structure of the Heart - Revision Notes in A Level and IB BiologyStructure of the Heart - Revision Notes in A Level and IB Biology
Two pumps side by side.. Left = Oxygenated. Right = Deoxygenated. Atrium = Thin-walled and elastic, so it stretches as it collects the blood. It has a thin muscular wall because it only has to pump blood a short distance to the ventricles.. Ventricle = It has a thicker muscular wall because it has to pump blood a longer distance to the lungs or the rest of the body.. The left ventricle has a thick muscular wall, which means it can…. ...
Effects of Partial Left Ventriculectomy on Cardiac Performance | CirculationEffects of Partial Left Ventriculectomy on Cardiac Performance | Circulation
We acknowledge and thank Dr Fukamachi and colleagues for their comments regarding our report describing the immediate effects of partial left ventriculectomy (PLV) on cardiac performance in a group of 8 patients with severe heart failure.R1 This study used pressure-area relations by echocardiographic automated border detection as a surrogate for pressure-volume relations to assess ventricular function in a predominately load-independent manner. Estimates of end-systolic elastance (Ees) and preload recruitable stroke work demonstrated variable immediate results of PLV. Changes in Ees and preload recruitable stroke work were inversely correlated with semiquantitative histological measures of myocardial fibrosis and directly related to degrees of hypertrophy.. Although Fukamachi et al raise some interesting points regarding the analysis of Ees from our data, they did not account for the fact that we used cross-sectional area as a surrogate for ventricular volume to estimate ventricular performance. ...
Surgical therapy for heart failure: care of the patient with partial left ventriculectomy. When to transplant: recipient...Surgical therapy for heart failure: care of the patient with partial left ventriculectomy. When to transplant: recipient...
Surgical therapy for heart failure: care of the patient with partial left ventriculectomy. When to transplant: recipient selection for heart transplantation
Clinical characteristics of patients undergoing surgical ventricular reconstruction by choice and by randomization<...Clinical characteristics of patients undergoing surgical ventricular reconstruction by choice and by randomization<...
TY - JOUR. T1 - Clinical characteristics of patients undergoing surgical ventricular reconstruction by choice and by randomization. AU - Zembala, Marian. AU - Michler, Robert E.. AU - Rynkiewicz, Andrzej. AU - Huynh, Thao. AU - She, Lilin. AU - Lubiszewska, Barbara. AU - Hill, James A.. AU - Jandova, Ruzena. AU - Dagenais, Francois. AU - Peterson, Eric D.. AU - Jones, Robert H.. PY - 2010/8/3. Y1 - 2010/8/3. N2 - Objectives: The aim of this study was to confirm the generalizability of the conclusions of the STICH (Surgical Treatment for Ischemic Heart Failure) trial. Background: Surgical ventricular reconstruction (SVR) added to coronary artery bypass grafting (CABG) did not decrease death or cardiac hospitalization in STICH patients randomized to CABG with (n = 501) or without (n = 499) SVR. Methods: Baseline clinical characteristics of 1,000 STICH SVR hypothesis patients and 1,036 STICH-eligible Society of Thoracic Surgeons (STS) National Cardiac Database patients undergoing CABG plus SVR were ...
T-Type and Tetrodotoxin-Sensitive Ca2+ Currents Coexist in Guinea Pig Ventricular Myocytes and Are Both Blocked by Mibefradil |...T-Type and Tetrodotoxin-Sensitive Ca2+ Currents Coexist in Guinea Pig Ventricular Myocytes and Are Both Blocked by Mibefradil |...
In guinea pig ventricular myocytes, 2 LVACCs can be distinguished under nominally Na+-free conditions on the basis of their sensitivity to the blockers Ni2+ and TTX as well as by their distinct electrophysiological properties. The Ni2+-sensitive current shares many characteristics with ICa(T) previously identified under similar conditions.26 When studying ICa(T) of guinea pig ventricular myocytes, almost all investigators eliminated INa by using Na+-free superfusion solutions.2 21 25 26 27 Most investigators even added Na+ channel blockers like TTX to the external solutions to block any residual current due to Na+ contamination or Ca2+ permeation.27 The presence of TTX certainly excluded the characterization of ICa(TTX) described here.. The ICa(TTX) characterized in the present study corresponds well to the ICa(TTX) described previously in human atrial17 and rat ventricular 18 myocytes. An ICa(TTX) was also detected in 1 study involving guinea pig ventricular myocytes; the IC50 value of 2.4 ...
577 Myocardial effects of Ghrelin and expression of its receptors in the progression to right ventricular failure577 Myocardial effects of Ghrelin and expression of its receptors in the progression to right ventricular failure
301 Semiquantitative histomorphometric analysis of myocardium following partial left ventriculectomy: one-year follow-up. Vasiljevic, J.D.; Otasevic, P.; Popovic, Z.B.; Neskovic, A.N.; Popovic, Z.V.; Vidakovic, R.V.; Radovancevic, B.; Frazier, O.Howard; Gradinac, S. // European Journal of Heart Failure. Supplements;Jun2004, Vol. 3 Issue 1, p73 An abstract of the article "Semiquantitative histomorphometric analysis of myocardium following partial left ventriculectomy: one-year follow-up," by J. D. Vasiljevic et al., is presented. ...
Time-dependent outward current in guinea pig ventricular myocytes. Gating kinetics of the delayed rectifier. | JGPTime-dependent outward current in guinea pig ventricular myocytes. Gating kinetics of the delayed rectifier. | JGP
Several conflicting models have been used to characterize the gating behavior of the cardiac delayed rectifier. In this study, whole-cell delayed rectifier currents were measured in voltage-clamped guinea pig ventricular myocytes, and a minimal model which reproduced the observed kinetic behavior was identified. First, whole-cell potassium currents between -10 and +70 mV were recorded using external solutions designed to eliminate Na and Ca currents and two components of time-dependent outward current were found. One component was a La3(+)-sensitive current which inactivated and resembled the transient outward current described in other cell types; single-channel observations confirmed the presence of a transient outward current in these guinea pig ventricular cells (gamma = 9.9 pS, [K]o = 4.5 mM). Analysis of envelopes of tail amplitudes demonstrated that this component was absent in solutions containing 30-100 microM La3+. The remaining time-dependent current, IK, activated with a sigmoidal ...
Heart Help - First Steps - ConductionHeart Help - First Steps - Conduction
A heartbeat is one cycle in which your hearts ventricles relax (diastole) and squeeze (systole) to pump blood. This cycle includes the opening and closing of the valves of your heart.. When your hearts ventricles relax, blood flows from the atria to the ventricles. Your hearts atria squeeze and pump blood into the ventricles. The atria then relax. Your hearts ventricles then squeeze, pumping blood out of your heart.. ...
Effect of Lean Body Mass, Fat Mass, Blood Pressure, and Sexual Maturation on Left Ventricular Mass in Children and Adolescents ...Effect of Lean Body Mass, Fat Mass, Blood Pressure, and Sexual Maturation on Left Ventricular Mass in Children and Adolescents ...
The determinants of left ventricular mass in children and adolescents have been controversial, and the relative roles of lean body mass, ponderosity, and blood pressure have been debated. The present study provides a more definitive answer to this question because of the use of DEXA, which is the most valid, reliable, and clinically useful method currently available for measurement of body composition in children and adolescents. This allows for separation of the influences of lean body mass and fat mass on left ventricular mass. In this study, we found that lean body mass and fat mass were both statistically significant correlates of left ventricular mass. However, lean body mass is a much stronger predictor of left ventricular mass than is fat mass. These results are consistent with the findings of Goble et al,7 who reported that body weight but not ponderosity is a strong predictor of left ventricular mass. Goble et al also reported that body fat as measured by suprailiac skinfold thickness ...
KIT - Bachelor, Master and PhD Theses - Modeling of ischemia in electrophysiological models of human ventricular myocytesKIT - Bachelor, Master and PhD Theses - Modeling of ischemia in electrophysiological models of human ventricular myocytes
In the presented work, ischemia, represented by its three major effects, hyperkalemia, acidosis, and hypoxia, has been successfully integrated into two cell models of human ventricular myocytes. The basis of modeling these three effects has been performed according to other groups. However, various enhancements have been conducted as well. First of all, it is the first in the world using a human ventricular myocyte model as basis for modeling of ischemia. For hyperkalemia and acidosis the cell models needed not to be extended since variables for extracellular potassium concentration [K+]o and for the channel conductivities of INa and ICaL were already present. In case of hypoxia, a new ion channel has been incorporated into the models that was proposed by different groups such as Ferrero et al. [83] and Shaw and Rudy [84]. Both approaches have been analyzed and finally merged into one equation that fitted into the cell models of human ventricular myocytes. Therefore, the surface membrane area ...
Left Ventricular Aneurysm (Left Ventricul Wall Aneurysmal): Symptoms, Diagnosis and Treatment - SymptomaLeft Ventricular Aneurysm (Left Ventricul Wall Aneurysmal): Symptoms, Diagnosis and Treatment - Symptoma
Left Ventricular Aneurysm (Left Ventricul Wall Aneurysmal): Read more about Symptoms, Diagnosis, Treatment, Complications, Causes and Prognosis.
Left Ventricular Aneurysm Diagnostics: Costs for treatment #245241 in Germany | BookingHealthLeft Ventricular Aneurysm Diagnostics: Costs for treatment #245241 in Germany | BookingHealth
Left Ventricular Aneurysm Diagnostics (costs for program #245241) ✔ Hannover Medical School ✔ Department of Cardiac, Thoracic, Transplantation and Vascular Surgery ✔ BookingHealth.com
CABG and plastic repair of left ventricular aneurysm: Costs for treatment #227483 in Germany | BookingHealthCABG and plastic repair of left ventricular aneurysm: Costs for treatment #227483 in Germany | BookingHealth
CABG and plastic repair of left ventricular aneurysm (costs for program #227483) ✔ University Hospital Würzburg ✔ Department of Thoracic and Cardiovascular Surgery ✔ BookingHealth.com
Prediction of the mechanical response of cardiac alternans by using an electromechanical model of human ventricular myocytes |...Prediction of the mechanical response of cardiac alternans by using an electromechanical model of human ventricular myocytes |...
Although the quantitative analysis of electromechanical alternans is important, previous studies have focused on electrical alternans, and there is a lack quantitative analysis of mechanical alternans at the subcellular level according to various basic cycle lengths (BCLs). Therefore, we used the excitation-contraction (E-C) coupling model of human ventricular cells to quantitatively analyze the mechanical alternans of ventricular cells according to various BCLs. To implement E-C coupling, we used calcium transient data, which is the output data of electrical simulation using the electrophysiological model of human ventricular myocytes, as the input data of mechanical simulation using the contractile myofilament dynamics model. Moreover, we applied various loads on ventricular cells for implementation of isotonic and isometric contraction. As the BCL was reduced from 1000 to 200 ms at 30 ms increments, mechanical alternans, as well as electrical alternans, were observed. At this time, the myocardial
Ventricular Remodeling Operation (Batista Procedure) and Surgical Ventricular Restoration (Dor Procedure) - Medical Clinical...Ventricular Remodeling Operation (Batista Procedure) and Surgical Ventricular Restoration (Dor Procedure) - Medical Clinical...
Based on the MRI findings, 4 patients (group A) underwent isolated coronary bypass surgery, and the remaining 4 patients (group B) underwent SVR and mitral valve plasty concomitantly with coronary bypass surgery. Peri-operative changes in ventricular function were quantitatively assessed in each group. The mean end-diastolic volume index was reduced from 115 +/- 29 ml/m2 to 95 +/- 14 ml/m2 in group A and from 163 +/- 35 ml/m2 to 125 +/- 28 ml/m2 in group B. The mean end-systolic volume index was reduced from 91 +/- 25 ml/m2 to 68 +/- 16 ml/m2 in group A and from 135 +/- 36 ml/m2 to 98 +/- 28 ml/m2 in group B. The mean ejection fraction increased from 20 % +/- 6 % to 28 % +/- 9 % in group A and from 17 % +/- 6 % to 22 % +/- 5 % in group B. The mean NYHA functional class was reduced from 3.0 +/- 0.8 to 1.8 +/- 0.6 in group A and from 3.5 +/- 0.5 to 2.2 +/- 0.2 in group B. The authors concluded that DE-MRI was highly effective in helping to select which patients and which areas of the left ...
Left Ventricular Morphology of the Giraffe Heart Examined by Stereological Methods - Østergaard - 2013 - The Anatomical Record ...Left Ventricular Morphology of the Giraffe Heart Examined by Stereological Methods - Østergaard - 2013 - The Anatomical Record ...
Since the 1920s, it has been a dogma that the only manner of normalising LV wall stress, for example during systemic hypertension, is to increase cardiac mass by means of hypertrophy (Karsner et al., 1925; Petersen and Baserga, 1965; Morkin and Ashford, 1967; Morkin and Ashford, 1968), where the myocytes are thickening due to parallel replication of sarcomeres (Dorri et al., 2007). Since then, however, a number of recent investigations of both healthy and sick hearts have shown that hyperplasia can occur after the postnatal period (Linzbach, 1960; Olivetti et al., 1994; Beltrami et al., 1995; Anversa and Kajstura, 1998; Beltrami et al., 2001; Leri et al., 2002; Engel, 2005; Brüel et al., 2007b; Du et al., 2010). It is likely that the pathophysiological response to increased afterload elicits both a hypertrophic response, and a hyperplastic response with formation of- and parallel placement of new cardiomyocytes (Kajstura et al., 1994). Importantly, the combined response to chronically increased ...
The effect of disease on human cardiac protein expression profiles in paired samples from right and left ventricles | Clinical...The effect of disease on human cardiac protein expression profiles in paired samples from right and left ventricles | Clinical...
Cardiac diseases (e.g. coronary and valve) are associated with ventricular cellular remodeling. However, ventricular biopsies from left and right ventricles from patients with different pathologies are rare and thus little is known about disease-induced cellular remodeling in both sides of the heart and between different diseases. We hypothesized that the protein expression profiles between right and left ventricles of patients with aortic valve stenosis (AVS) and patients with coronary artery disease (CAD) are different and that the protein profile is different between the two diseases. Left and right ventricular biopsies were collected from patients with either CAD or AVS. The biopsies were processed for proteomic analysis using isobaric tandem mass tagging and analyzed by reverse phase nano-LC-MS/MS. Western blot for selected proteins showed strong correlation with proteomic analysis. Proteomic analysis between ventricles of the same disease (intra-disease) and between ventricles of different
Nuclear Ventriculogram - Index-Tests - tests-diagnosis - Heart Healthy WomenNuclear Ventriculogram - Index-Tests - tests-diagnosis - Heart Healthy Women
What is a nuclear ventriculogram? A nuclear ventriculogram (technically called radionuclide ventriculography) is a test that uses a special camera to take a series pictures of the pumping chambers (ventricles) of the heart to check their size an
Quality of life and economic outcomes with surgical ventricular reconstruction in ischemic heart failure: Results from the...Quality of life and economic outcomes with surgical ventricular reconstruction in ischemic heart failure: Results from the...
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End systolic volume - DocCheck FlexikonEnd systolic volume - DocCheck Flexikon
The value of the end systolic volume depends on the arterial blood pressure as well as on the force of ventricular contraction. The arterial blood pressure - especially in the large arteries leaving the heart - is not only pressure outwards against the arterial walls but also back pressure against the aortic valve and the pulmonary valve exerted by the arterial blood. An increased arterial blood pressure results in higher end systolic volume because of more afterload (more resistance to the outflow of blood from the ventricles). Contractility of the ventricular muscle can increase (e.g. from increased stimulation of the heart by the sympathetic nervous system), thereby causing more complete ejection of blood from the ventricle and a resultant lower end systolic volume. ...
Impact of Physical Activity on Left Ventricular Mass and Lipid Metabolism - Full Text View - ClinicalTrials.govImpact of Physical Activity on Left Ventricular Mass and Lipid Metabolism - Full Text View - ClinicalTrials.gov
Left ventricular hypertrophy, defined as an increase in the mass of the left ventricle may occur as a physiologic response to exercise (athletic remodeling aka athletic heart), but is most frequently encountered as a pathological manifestation of cardiovascular disease. The early determinants of athletic remodeling in the general population are largely unknown. In order to longitudinally explore the early determinants of athletic remodeling, we will recruit from the community, physically untrained women who have volunteered to run a marathon. We will prospectively assess left ventricular mass and function by echocardiogram during three consecutive stages/visits:. ...
A Mighty Heart: Iraqi Man Lives With DisordersA Mighty Heart: Iraqi Man Lives With Disorders
For 39 years, Hussain Ali Humza was clueless that his heart was functioning with a double-chambered right ventricle and a septal valve.
Item 55126 | Medicare Benefits ScheduleItem 55126 | Medicare Benefits Schedule
Note: the service only applies if the patient meets the requirements of the descriptor and the requirements of Note: IR.1.2. Initial real time echocardiographic examination of the heart with real time colour flow mapping from at least 3 acoustic windows, with recordings on digital media:. (a) for the investigation of any of the following:. (i) symptoms or signs of cardiac failure; or. (ii) suspected or known ventricular hypertrophy or dysfunction; or. (iii) pulmonary hypertension; or. (iv) valvular, aortic, pericardial, thrombotic or embolic disease; or. (v) heart tumour; or. (vi) symptoms or signs of congenital heart disease; or. (vii) other rare indications; and. (b) if the service involves all of the following, where possible:. (i) assessment of left ventricular structure and function including quantification of systolic function using M-mode, 2-dimensional or 3-dimensional imaging and diastolic function; and. (ii) assessment of right ventricular structure and function with quantitative ...
Hypertrophy of the left ventricle: what is it?Hypertrophy of the left ventricle: what is it?
The heart consists of the right and the left who perform different jobs. Right departments collect the blood that enters from the entire body, and pump it into the lungs. From there the blood goes to the left heart where it is pumped throughout the body. Left ventricular hypertrophy (LVH) is an enlargement and thickening of the walls of the main pumping chamber of the heart left ventricle. It can develop in response to certain factors (e.g. high blood pressure or heart disease), which cause the left ventricle to work harder. With increasing load, the muscle tissue in the wall thicken, and sometimes the size of the chambers of the heart also increases. If the hypertrophied left ventricle, it lose their elasticity and eventually can not pump blood throughout the body with sufficient efficiency.. ...
Chest conditions - Medicine and HealthChest conditions - Medicine and Health
The ventricles are the large lower chamber of the heart. They are responsible for moving blood to the organs and tissues of the body. In ventricular fibrillation, the hearts ventricles contract in a rapid and chaotic manner. As a result, little or no blood is pumped from the heart. Unless medical help is provided immediately, ventricular fibrillation will lead to cardiovascular collapse and sudden death.. ...
Heart & blood - Medicine and HealthHeart & blood - Medicine and Health
The ventricles are the large lower chamber of the heart. They are responsible for moving blood to the organs and tissues of the body. In ventricular fibrillation, the hearts ventricles contract in a rapid and chaotic manner. As a result, little or no blood is pumped from the heart. Unless medical help is provided immediately, ventricular fibrillation will lead to cardiovascular collapse and sudden death.. ...
Assessment of the Left Ventricle Wall Motion Using Tagged Magnetic Resonance Imaging Data (tMRI)Assessment of the Left Ventricle Wall Motion Using Tagged Magnetic Resonance Imaging Data (tMRI)
In this paper, the Radial Strain (RS) and Strain Rate (SR) was calculated using tagged MRI (tMRI) data. Using tagged magnetic resonance imaging (tMRI), the left ventricle short axis of five healthy adults (three men and two women) and four healthy male rats was imaged during diastolic and systolic phases on the mid-ventricle level. The RS and radial SR of the left ventricle were calculated at the mid-ventricular level of the cardiac cycle. The peak RS for rat and human heart was found to be 46.8 ± 0.68 and 40.7 ± 1.44, respectively, and it occurred at 40% of the cardiac cycle for both human and rat hearts. The peak systolic and diastolic radial SR for human heart was 1.10 ± 0.08 s- 1 and - 1.78 ± 0.02 s- 1, respectively, while it was 4.25 ± 0.02 s- 1 and - 5.16 ± 0.23 s- 1, respectively for rat heart. The results show that tMRI data can be used to characterize the cardiac function during systolic and diastolic phases of the cardiac cycle, and as a result, it can be used to evaluate the cardiac
Cardiomyopathy, dilated - OpenToxipediaCardiomyopathy, dilated - OpenToxipedia
Cardiomyopathy, dilated A form of cardiac muscle disease that is characterized by ventricular dilation, contractile dysfunction of the left or both heart ventricles, and congestive heart failure (heart failure, congestive) symptoms. ...
Echo-Web: Left Ventricular Aneurysm | Health And WellnessEcho-Web: Left Ventricular Aneurysm | Health And Wellness
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miR-15 Family Regulates Postnatal Mitotic Arrest of Cardiomyocytes | Circulation ResearchmiR-15 Family Regulates Postnatal Mitotic Arrest of Cardiomyocytes | Circulation Research
Methods and Results: Microarray analysis revealed subsets of miRNAs that were upregulated or downregulated in cardiac ventricles from mice at 1 and 10 days of age (P1 and P10). Interestingly, miR-195 (a member of the miR-15 family) was the most highly upregulated miRNA during this period, with expression levels almost 6-fold higher in P10 ventricles relative to P1. Precocious overexpression of miR-195 in the embryonic heart was associated with ventricular hypoplasia and ventricular septal defects in β-myosin heavy chain-miR-195 transgenic mice. Using global gene profiling and argonaute-2 immunoprecipitation approaches, we showed that miR-195 regulates the expression of a number of cell cycle genes, including checkpoint kinase 1 (Chek1), which we identified as a highly conserved direct target of miR-195. Finally, we demonstrated that knockdown of the miR-15 family in neonatal mice with locked nucleic acid-modified anti-miRNAs was associated with an increased number of mitotic cardiomyocytes and ...
Ventricular Assist Devices - Jefferson University HospitalsVentricular Assist Devices - Jefferson University Hospitals
A VAD is a mechanical device that is used to take over the pumping function for one or both of the hearts ventricles and may be required to support the heart in order to ensure the amount of blood pumped out by the heart per minute is enough to meet the bodys needs.
Patente US4902291 - Collapsible artificial ventricle and pumping shell - Google PatentesPatente US4902291 - Collapsible artificial ventricle and pumping shell - Google Patentes
An artificial ventricle for use as part of a total artificial heart for implantation within a living being as part of its circulatory system. The ventricle includes a soft and flexible blood pumping sac which can be collapsed to the substantially flattened, squeezed or rolled-up structure of much reduced size. The sac includes inlet and outlet ports to permit the flow of blood therethrough and is contained within a semi-rigid and removable enclosure which provides pumping means for driving blood flow through the ventricle. The semi-rigid shell includes open and closed configurations to allow emplacement of the shell around an attached ventricle already sutured in place as part of the circulatory system. Removal of the rigid shell is likewise feasible without disturbing the attached ventricle.
Biology-Online • View topic - How does blood is circulated in amphibians?Biology-Online • View topic - How does blood is circulated in amphibians?
The frog circulatory system consist of two atria and one single ventricle. It is the only organ within the coelom which has its own protective covering. The single ventricle is not divided into two compartments like a humans heart, but it is separated enough for the blood not to get mixed. This is done by the arrangement of the frogs heart, where the right atrium dips downward into the ventricle. Which causes oxygen-poor blood that is entering the right atrium to pass all the way down to the bottom of the ventricle. At the same time, oxygen-laden blood is received by the left atrium and enters the same single ventricle. The pool of oxygen-poor blood at the bottom of the ventricle holds up the oxygen -laden blood and prevents it from sinking to the bottom. Then the oxygen-poor blood flows from the ventricle into the vessels leading to the lungs and the oxygen-laden blood is forced into the arteries ...
Active right ventricular cardiac sarcoidosis | Image | Radiopaedia.orgActive right ventricular cardiac sarcoidosis | Image | Radiopaedia.org
Details of the image Active right ventricular cardiac sarcoidosis Modality: Annotated image (A. SAX PRE CONTRAST SSFP. B. SAX POST CONTRAST PSIR)
Re: Cholesterol Lowering Therapy Reduces Myocardial Ischemia Within 4 to 6 months!Re: Cholesterol Lowering Therapy Reduces Myocardial Ischemia Within 4 to 6 months!
Large reversible abnormalities involving the interventricular septum and left ventricular apex are sinsistent with exercise induced ischemia in this region.. I am facing the possibility of an angiogram and possible angioplasty. Prior to invasive procedures, I would like my doctor to explore this therapy if it fits my condition.. If possible, please send reply to the e-mail address [email protected] ...
Pulmonary Trunk Enlarged Causes & Reasons - SymptomaPulmonary Trunk Enlarged Causes & Reasons - Symptoma
Pulmonary Trunk Enlarged Symptom Checker: Possible causes include Left Cardiac Ventricle Disorder. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search.
Plus itPlus it
During the last third of gestation, fetal sheep underwent exponential growth of heart and body (Fig. 2). LV-to-heart mass ratio did not change with advancing gestational age, but that of the RV to heart increased slightly during the same period (Table 1 and Fig. 3).. Lengths and widths of myocytes from the fetal ventricles over the last third of gestation are shown in Fig. 4. The lengths of binucleated myocytes from both ventricles and the lengths of RV mononucleated myocytes did not increase significantly with gestational age (Table 1). LV mononucleated myocytes significantly increased in length but only slightly. Binucleated and mononucleated myocytes from both ventricular free walls increased in width during this period. Accordingly, the ratio of lengths to widths decreased with advancing age in mononucleated and binucleated myocytes of both ventricles (Table 1).. Myocyte volumes, calculated from myocyte dimensions and a correction factor, increased with advancing gestational age (Fig. 5). ...
Intrinsic mobility of H+ ions (D-app(H)) in guinea-pig ventricular myocytes - Oxford Cardiovascular ScienceIntrinsic mobility of H+ ions (D-app(H)) in guinea-pig ventricular myocytes - Oxford Cardiovascular Science
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Alcatraz IslandAlcatraz Island
June 11, 1962 - Made famous by Clint Eastwood in the movie Escape from Alcatraz, Frank Morris and brothers John and Clarence Anglin vanished from their cells and were never seen again. A fourth man, Allen West, believed by some people to have been the mastermind, was also involved; however, he was still in his cell the next morning when the escape was discovered. An investigation revealed an intricate escape plot that involved homemade drills to enlarge vent holes, false wall segments, and realistic dummy heads (complete with human hair) placed in the beds so the inmates would not be missed during nighttime counts. The three men exited through vent holes located in the rear wall of their cell - they had enlarged the vent holes and made false vent/wall segments to conceal their work. Behind the rear wall of the cells is a utility corridor that had locked steel doors at either end. The three men climbed the utility pipes to the top of the cellblock, and gained access to the roof through an air ...
Stiffness of Left Ventricular Cardiac Fibroblasts Is Associated With Ventricular Dilation in Patients With Recent-Onset...Stiffness of Left Ventricular Cardiac Fibroblasts Is Associated With Ventricular Dilation in Patients With Recent-Onset...
Glaubitz, Michael; Block, Stephan; Witte, Jeannine; Empen, Klaus; Gross, Stefan; Schlicht, Robert; Weitmann, Kerstin; Klingel, Karin; Kandolf, Reinhard; Hoffmann, Wolfgang; Gottschalk, Kay E.; Busch, Mathias; Doerr, Marcus; Helm, Christiane A.; Felix, Stephan B.; Riad, Alexander ...
What is this pouch on the left ventricle of my babys heart ? - Doctors insight on HealthcareMagicWhat is this pouch on the left ventricle of my baby's heart ? - Doctor's insight on HealthcareMagic
Question - What is this pouch on the left ventricle of my babys heart ?. Ask a Doctor about when and why Ultrasound is advised, Ask a Pediatrician
What Is the Difference between the Atrium and Ventricles?What Is the Difference between the Atrium and Ventricles?
The atrium and ventricles differ in location and function. The atria are located at the top of the heart, while the ventricles...
Hypertrophic reprogramming of the left ventricle: translation to the ECG.Hypertrophic reprogramming of the left ventricle: translation to the ECG.
Hypertrophic growth of the heart occurs in many clinical scenarios, and it confers substantially increased risk of untoward sequelae. Among them, transition to ventricular dilation, wall thinning, contractile dysfunction, and a clinical syndrome of h
Hashtags accommodate, the, elevated, pulmonary, venous, return, left, ventricle, dilates, figure, symptoms, bacterial, invasive...Hashtags accommodate, the, elevated, pulmonary, venous, return, left, ventricle, dilates, figure, symptoms, bacterial, invasive...
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WHATS UP DOC? Understanding pacemakers - Entertainment & Life - Wicked Local Stow - Stow, MAWHAT'S UP DOC? Understanding pacemakers - Entertainment & Life - Wicked Local Stow - Stow, MA
Q: My dad fainted and they told him needed a pacemaker. I would like to understand more about pacemakers.A: The first step is to understand the normal electrical activity of the heart. Each of the half-billion cells in the heart plays a role in its mechanical contraction (of the atria, which passively fill with blood and then squeeze blood out to load the ventricles, and of the ventricles, with the right ventricle pushing the blood to the lungs and the more powerful left
WHATS UP DOC? Understanding pacemakers - Entertainment & Life - Wicked Local East Bridgewater - East Bridgewater, MAWHAT'S UP DOC? Understanding pacemakers - Entertainment & Life - Wicked Local East Bridgewater - East Bridgewater, MA
Q: My dad fainted and they told him needed a pacemaker. I would like to understand more about pacemakers.A: The first step is to understand the normal electrical activity of the heart. Each of the half-billion cells in the heart plays a role in its mechanical contraction (of the atria, which passively fill with blood and then squeeze blood out to load the ventricles, and of the ventricles, with the right ventricle pushing the blood to the lungs and the more powerful left
WHATS UP DOC? Understanding pacemakers - Entertainment & Life - Needham Times - Needham, MAWHAT'S UP DOC? Understanding pacemakers - Entertainment & Life - Needham Times - Needham, MA
Q: My dad fainted and they told him needed a pacemaker. I would like to understand more about pacemakers.A: The first step is to understand the normal electrical activity of the heart. Each of the half-billion cells in the heart plays a role in its mechanical contraction (of the atria, which passively fill with blood and then squeeze blood out to load the ventricles, and of the ventricles, with the right ventricle pushing the blood to the lungs and the more powerful left
Gene Expression Literature Summary - MGIGene Expression Literature Summary - MGI
J:158582 Tian Y, Yuan L, Goss AM, Wang T, Yang J, Lepore JJ, Zhou D, Schwartz RJ, Patel V, Cohen ED, Morrisey EE, Characterization and in vivo pharmacological rescue of a Wnt2-Gata6 pathway required for cardiac inflow tract development. Dev Cell. 2010 Feb 16;18(2):275-87 ...
Insecta in the 10th edition of Systema NaturaeInsecta in the 10th edition of Systema Naturae
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Amphibia in the 10th edition of Systema NaturaeAmphibia in the 10th edition of Systema Naturae
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Vermes in the 10th edition of Systema NaturaeVermes in the 10th edition of Systema Naturae
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Aves in the 10th edition of Systema NaturaeAves in the 10th edition of Systema Naturae
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Clifford Kwan-GettClifford Kwan-Gett
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LVSDLVSD
T waveT wave
AmphibianAmphibian
ChannichthyidaeChannichthyidae
Papillary musclePapillary muscle
Body WarsBody Wars
Outline of cardiologyOutline of cardiology
Ibn al-NafisIbn al-Nafis
Intraventricular blockIntraventricular block
Situs ambiguusSitus ambiguus
HypertrophyHypertrophy
MesogastropodaMesogastropoda
Intracardiac injectionIntracardiac injection
Hyperdynamic precordiumHyperdynamic precordium
Fish physiologyFish physiology
QRS complexQRS complex
Isotonic contractionIsotonic contraction
10th edition of Systema Naturae10th edition of Systema Naturae
AnatomyAnatomy
Italian crested newtItalian crested newt
Sunao TawaraSunao Tawara
OctopusOctopus
Venous bloodVenous blood
Fetal aortic stenosisFetal aortic stenosis
ReptileReptile
Interatrial sulcusInteratrial sulcus
High-altitude cerebral edemaHigh-altitude cerebral edema
Brain-derived neurotrophic factorBrain-derived neurotrophic factor
নিতম্বাস্থি - উইকিপিডিয়ানিতম্বাস্থি - উইকিপিডিয়া
Artificial cardiac pacemakerArtificial cardiac pacemaker
ସୁପ୍ରାଭେଣ୍ଟ୍ରିକୁଲାର ଟାକିକାର୍ଡ଼ିଆ - ଉଇକିପିଡ଼ିଆସୁପ୍ରାଭେଣ୍ଟ୍ରିକୁଲାର ଟାକିକାର୍ଡ଼ିଆ - ଉଇକିପିଡ଼ିଆ
TachycardiaTachycardia
TachycardiaTachycardia
DomperidoneDomperidone
Common ostrichCommon ostrich
कार्दियाक अरिदमियाकार्दियाक अरिदमिया
Non-invasive intracranial pressure measurement methodsNon-invasive intracranial pressure measurement methods
Heart valveHeart valve
Hypertensive emergencyHypertensive emergency
Rosetta StoneRosetta Stone
ഫലകം:Cardiac procedures - വിക്കിപീഡിയഫലകം:Cardiac procedures - വിക്കിപീഡിയ
BirdBird
PericardiumPericardium
Primary polydipsiaPrimary polydipsia
Atrial fibrillationAtrial fibrillation
NeuroimagingNeuroimaging
કૃત્રિમ પેસમેકર - વિકિપીડિયાકૃત્રિમ પેસમેકર - વિકિપીડિયા
AortaAorta
5-HT4受體 - 维基百科，自由的百科全书5-HT4受體 - 维基百科，自由的百科全书
AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesDisciplines and OccupationsInformation ScienceGeographicals
Heart VentriclesMyocardiumHeartHeart RateCerebral VentriclesThird VentricleFourth VentricleHeart FailureLateral VentriclesHeart Defects, CongenitalCerebral Ventricle NeoplasmsHeart DiseasesHeart TransplantationFetal HeartHeart AtriaMyocardial ContractionHeart ValvesVentricular FunctionVentricular Function, LeftHeart BlockEchocardiographyHemodynamicsDogsHeart Function TestsMyocytes, CardiacHeart SeptumCardiomegalyEndocardiumVentricular Function, RightStroke VolumeMyocardial IschemiaEncyclopedias as TopicChordae TendineaeTruncus ArteriosusTricuspid ValveMitral ValveHeart MurmursHeart AuscultationPhonocardiographyVentricular Dysfunction, LeftBlalock-Taussig ProcedureFontan ProcedureNorwood ProceduresPhiladelphiaHeart Bypass, RightTricuspid Valve InsufficiencyPapillary MusclesMuscle ContractionVentricular Premature ComplexesTricuspid Valve StenosisAntarctic RegionsMyoglobinPerciformesBiologyFishesSeals, Earless
The Left Ventricle of the Heart - 846 Words | BartlebyThe Left Ventricle of the Heart - 846 Words | Bartleby
Human Heart Ventricle, right (Arrhythmia, infarct) tissue lysate | GeneTexHuman Heart Ventricle, right (Arrhythmia, infarct) tissue lysate | GeneTex
Left vs right ventricle of heartLeft vs right ventricle of heart
3d diagram of the human heart which I am using for a KS2 classroom display. Left ventricle and right ventricle contain sealed...3d diagram of the human heart which I am using for a KS2 classroom display. Left ventricle and right ventricle contain sealed...
Symptoms and Causes of Double Inlet Left VentricleSymptoms and Causes of Double Inlet Left Ventricle
Ca2 Sensitivity - Muscle Contraction - Fitness VIPCa2 Sensitivity - Muscle Contraction - Fitness VIP
What is the cure for an enlarged left ventricle with reduced contraction?What is the cure for an enlarged left ventricle with reduced contraction?
Trabeculae carneae as models of the ventricular walls: implications for the delivery of oxygen | JGPTrabeculae carneae as models of the ventricular walls: implications for the delivery of oxygen | JGP
Treatment for Your Childs Hypoplastic Ventricle: Stage I | Northwestern MedicineTreatment for Your Child's Hypoplastic Ventricle: Stage I | Northwestern Medicine
Difference Between Left and Right Ventricle | Definition, Anatomy, Physiology, DiseasesDifference Between Left and Right Ventricle | Definition, Anatomy, Physiology, Diseases
Magnetic-resonance-imaging-derived indices for the normalization of left ventricular morphology by body size. - Radcliffe...Magnetic-resonance-imaging-derived indices for the normalization of left ventricular morphology by body size. - Radcliffe...
Ventricle (heart) - WikipediaVentricle (heart) - Wikipedia
Ventricle (heart) - WikipediaVentricle (heart) - Wikipedia
dilated left ventricle - Heart Disease - MedHelpdilated left ventricle - Heart Disease - MedHelp
Left ventricle wall thickness - Heart Disease - MedHelpLeft ventricle wall thickness - Heart Disease - MedHelp
Ventricle (heart) - WikipediaVentricle (heart) - Wikipedia
A 3D model of a human heart ventricle | EurekAlert! Science NewsA 3D model of a human heart ventricle | EurekAlert! Science News
Massive fistulization into the left ventricle of a transplanted heart | SpringerLinkMassive fistulization into the left ventricle of a transplanted heart | SpringerLink
heart, artificial; mold, ventricle | National Museum of American Historyheart, artificial; mold, ventricle | National Museum of American History
Psychiatric Disorders in Adolescents With Single Ventricle Congenital Heart Disease | American Academy of PediatricsPsychiatric Disorders in Adolescents With Single Ventricle Congenital Heart Disease | American Academy of Pediatrics
abnormal heart right ventricle size Mammalian Phenotype Term (MP:0010577)abnormal heart right ventricle size Mammalian Phenotype Term (MP:0010577)
Single Ventricle Heart Defects | Childrens Hospital of PhiladelphiaSingle Ventricle Heart Defects | Children's Hospital of Philadelphia
Ventricle (heart) - wikidocVentricle (heart) - wikidoc
Development of the heart: (2) Septation of the atriums and ventricles | HeartDevelopment of the heart: (2) Septation of the atriums and ventricles | Heart
Right ventricle in sepsis: clinical and research priority | HeartRight ventricle in sepsis: clinical and research priority | Heart
Heart ventricle, SEM - Stock Image C038/2171 - Science Photo LibraryHeart ventricle, SEM - Stock Image C038/2171 - Science Photo Library
Image: Valves of the Heart (Ventricles Contracting) - Merck Manuals Consumer VersionImage: Valves of the Heart (Ventricles Contracting) - Merck Manuals Consumer Version
Concentrations of myoglobin and myoglobin mRNA in heart ventricles from Antarctic fishes | Journal of Experimental BiologyConcentrations of myoglobin and myoglobin mRNA in heart ventricles from Antarctic fishes | Journal of Experimental Biology
Concentrations of myoglobin and myoglobin mRNA in heart ventricles from Antarctic fishes | Journal of Experimental BiologyConcentrations of myoglobin and myoglobin mRNA in heart ventricles from Antarctic fishes | Journal of Experimental Biology
Ancora launches European clinical test of ventricle-binding therapy for heart failure | FierceBiotechAncora launches European clinical test of ventricle-binding therapy for heart failure | FierceBiotech
Contraction activity of right heart ventricle and pulmonary haemodynamics in cytotoxic cardiogenic shock.Contraction activity of right heart ventricle and pulmonary haemodynamics in cytotoxic cardiogenic shock.
The heart supporters: systematic review for ventricle assist devices in congenital heart...'The heart supporters': systematic review for ventricle assist devices in congenital heart...
The effect of intraoperative hypotension on the outcomes of initial hybrid palliation for single ventricle congenital heart...The effect of intraoperative hypotension on the outcomes of initial hybrid palliation for single ventricle congenital heart...
Phd ceremony H.G. Freling: Imaging of the right ventricle in congenital heart disease | News | University of GroningenPhd ceremony H.G. Freling: Imaging of the right ventricle in congenital heart disease | News | University of Groningen
They saw echogenic foci in both ventricles of the babies heart. No other markers. | Mom Answers | BabyCenterThey saw echogenic foci in both ventricles of the babies heart. No other markers. | Mom Answers | BabyCenter
Periodical: Surgery / Subject: Heart Ventricles - Adrian Kantrowitz - Profiles in Science Search ResultsPeriodical: Surgery / Subject: Heart Ventricles - Adrian Kantrowitz - Profiles in Science Search Results
Trial of Angiotensin Converting Enzyme Inhibition in Infants With Single Ventricle--Pediatric Heart Network - Full Text View -...Trial of Angiotensin Converting Enzyme Inhibition in Infants With Single Ventricle--Pediatric Heart Network - Full Text View -...
Functional Characteristics of the Left Ventricle in Heart Disease | Annals of Internal Medicine | American College of PhysiciansFunctional Characteristics of the Left Ventricle in Heart Disease | Annals of Internal Medicine | American College of Physicians
Statistical agreement of left ventricle measurements using cardiac magnetic resonance and 2D echocardiography in ischemic heart...Statistical agreement of left ventricle measurements using cardiac magnetic resonance and 2D echocardiography in ischemic heart...
Genre: Photographic prints / Subject: Heart Ventricles - Adrian Kantrowitz - Profiles in Science Search ResultsGenre: Photographic prints / Subject: Heart Ventricles - Adrian Kantrowitz - Profiles in Science Search Results
AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesDisciplines and OccupationsInformation ScienceGeographicals
Heart VentriclesMyocardiumHeartHeart RateCerebral VentriclesThird VentricleFourth VentricleHeart FailureLateral VentriclesHeart Defects, CongenitalCerebral Ventricle NeoplasmsHeart DiseasesHeart TransplantationFetal HeartHeart AtriaMyocardial ContractionHeart ValvesVentricular FunctionVentricular Function, LeftHeart BlockEchocardiographyHemodynamicsDogsHeart Function TestsMyocytes, CardiacHeart SeptumCardiomegalyEndocardiumVentricular Function, RightStroke VolumeMyocardial IschemiaEncyclopedias as TopicChordae TendineaeTruncus ArteriosusTricuspid ValveMitral ValveHeart MurmursHeart AuscultationPhonocardiographyVentricular Dysfunction, LeftBlalock-Taussig ProcedureFontan ProcedureNorwood ProceduresPhiladelphiaHeart Bypass, RightTricuspid Valve InsufficiencyPapillary MusclesMuscle ContractionVentricular Premature ComplexesTricuspid Valve StenosisAntarctic RegionsMyoglobinPerciformesBiologyFishesSeals, Earless
Tricuspid valveAmount of blood beingAortaContractionThicker wallsMitral valveChambersLungsVentricularPushes the bloodContractsPumps bloodAtrioventricularApex of thSystolicArteryWorkloadWallsDifferencesHypoplasticVenousRight and left ventricles respectiBodyCarriesDouble Outlet RiDefectsInfants With Single VentricleVolume of the beating vPulmonary arteryHuman heart ventricleChildren with congenital heart dTricuspidLeft ventricle has thicker wallsModel of the left ventricleWalls of the left ventricleFunction of the left ventricleAortic valvePalliation of single ventricleOutflowOperated with single-ventricleSingleSystemicPumpsMitralChamberNormal left ventricleDysfunctionHypertrophyCirculatoryDiseaseRight atriumAtriumThickerAtresiaFetalAbnormalEjectionTractFunctionalPatientsCirculationTrabeculae
Tricuspid valve1
Amount of blood being1
Aorta4
Contraction2
Thicker walls1
Mitral valve1
Chambers6
Lungs5
Ventricular2
  • In addition to these two abnormalities, the heart may have a hole between the two ventricles (a ventricular septal defect, VSD). (news-medical.net)
  • Patients with associated ECG features of LBBB and echo evdence of dyssynchrony (left and right ventricles not working in unison) also benefit by implanting a special pacemaker called bi-ventricular pacemaker. (ndtv.com)
Pushes the blood1
Contracts1
Pumps blood1
Atrioventricular2
Apex of th1
Systolic1
Artery2
Workload1
Walls2
Differences1
Hypoplastic3
Venous1
  • Congestive heart failure takes place when the heart is unable to maintain an adequate circulation of blood in the bodily tissues or to pump out the venous blood returned to it by the veins (Merriam-Webster). (bartleby.com)
Right and left ventricles respecti1
  • After the pause, the electrical impulse travels through the bundle of his and through right and left bundles that branch into the right and left ventricles respectively. (bartleby.com)
Body7
Carries1
Double Outlet Ri8
Defects28
Infants With Single Ventricle2
Volume of the beating v1
  • From there, researchers could control and monitor the calcium propagation and insert a catheter to study the pressure and volume of the beating ventricle. (eurekalert.org)
Pulmonary artery13
Human heart ventricle2
  • Human heart ventricle (left) tissue cytoplasmic protein lysate was prepared by isolating the cytoplasmic protein from whole tissue homogenates using a proprietary technique. (creativebiomart.net)
  • The human heart ventricle (left) tissue was frozen in liquid nitrogen immediately after excision and then stored at -70?C. The cytoplasmic protein is provided in a buffer including HEPES (pH 7.9), MgCl2, KCl, EDTA, Sucrose, glycerol, and a cocktail of protease inhibitors. (creativebiomart.net)
Children with congenital heart d3
Tricuspid10
Left ventricle has thicker walls3
Model of the left ventricle1
  • Pravdin S, Dierckx H, Markhasin VS, Panfilov A. Drift of scroll wave filaments in an anisotropic model of the left ventricle of the human heart. (ugent.be)
Walls of the left ventricle3
Function of the left ventricle2
  • The evidence for significant improvements in the contractile function of the left ventricle myocardium, as well as in patients' cognitive and emotional states, was observed in CHF patients after combined treatment with FSC. (emcell.com)
  • Impaired function of the left ventricle in Ebstein's malformation has also been described. (ucl.ac.uk)
Aortic valve1
Palliation of single ventricle3
  • The aim of this study was to retrospectively analyze risk factors for death after second-stage palliation of single-ventricle heart and to compare therapeutic results achieved with the hemi-Fontan and bidirectional Glenn procedures. (pubmedcentralcanada.ca)
  • Second-stage palliation of single-ventricle heart performed with the hemi-Fontan method consists of anastomosing the superior vena cava (SVC) with the pulmonary arteries close to the SVC insertion to the right atrium, while the SVC insertion is separated from the right atrial cavity by means of a transverse patch sutured to the right atrial walls. (pubmedcentralcanada.ca)
  • Today, surgical palliation of single-ventricle CHD is expected to result in favorable short- and long-term outcomes into early adulthood for most patients. (mhmedical.com)
Outflow1
  • In this respect, when concluding our first review, we explained how the arterial trunks were also formed by septation within the solitary outflow tract of the primary heart tube. (bmj.com)
Operated with single-ventricle1
  • Children operated with single-ventricle palliation between January 1994 and December 2017 operated in Sweden will be included retrospectively. (bioportfolio.com)
Single60
Systemic6
  • The left ventricle pumps blood into the systemic circulation for the rest of the body. (wikidoc.org)
  • In most studies of the heart, researchers have focused on the more-easily-imaged left ventricle, the region of the heart affected by systemic high blood pressure and other common conditions," said study author Steven Kawut, M.D., M.S. , associate professor of Medicine and Epidemiology and director of the Pulmonary Vascular Disease Program at Penn. (healthcanal.com)
  • She initially required extracorporeal membrane oxygenation support and was transitioned to Berlin Heart systemic VAD. (northwestern.edu)
  • Oxygenated blood enters the systemic circulation when leaving the left ventricle, through the aortic semilunar valve. (hyperleap.com)
  • A sinus of Valsalva aneurysm is a potential site of thrombus formation which may embolize to the systemic and cerebral circulation as well as the coronary [elynsgroup.com] We are reporting a twelve year old child with hyperdynamic circulation being diagnosed and treated as Rheumatic heart disease . (symptoma.com)
  • Systemic output is provided by the right ventricle and ductus arteriosus, with admixture of systemic and pulmonary venous return occurring via left-to-right shunting at the atrial level. (mhmedical.com)
Pumps6
Mitral5
Chamber8
Normal left ventricle2
Dysfunction3
  • 1 In this issue of Heart , Kim and colleagues present a timely study looking at the impact of RV dysfunction on the clinical outcomes of septic shock. (bmj.com)
  • The unique transcatheter approach of the AccuCinch system aims to treat the dilation and dysfunction of the left ventricle by placing a cable around the perimeter of the chamber's interior wall and fastening it in place using a series of anchors. (fiercebiotech.com)
  • Increased PP1 could result in the decreased PLN-Ser 16 and inhibition of PP1 is a potential therapeutic target for heart dysfunction in pediatrics. (biomedcentral.com)
Hypertrophy2
Circulatory1
Disease25
Right atrium3
Atrium1
Thicker1
Atresia1
  • atresia or hypoplasia of the ventricle associated with the affected atrioventricular or semilunar valve typically exists in conjunction with the valve abnormality. (mhmedical.com)
Fetal5
  • The Fetal Heart Program at CHOP will monitor baby and mother throughout the pregnancy and create a plan for labor and care after the birth. (chop.edu)
  • The Fetal Heart Program team will also discuss delivery in the Garbose Family Special Delivery Unit (SDU). (chop.edu)
  • Fetal right ventricles have complex flow patterns featuring two interacting diastolic vortex rings, formed during diastolic E-wave and A-wave. (physiology.org)
  • So fetal heart echo at 24 weeks from some very good ultrasonologist trained in fetal echo is must to know the exact diagnosis .Without complete diagnosis it is impossible to say whether it is life threatening or not. (healthcaremagic.com)
  • The doctors and nurses of Mount Sinai's Fetal Heart Program are dedicated to treating your infant as early as possible. (mountsinai.org)
Abnormal3
Ejection4
  • The European study hopes to register about 130 patients with reduced ejection fraction systolic heart failure. (fiercebiotech.com)
  • Ancora has enrolled the first participant in its planned multi-center study , which hopes to register about 130 European patients with reduced ejection fraction systolic heart failure. (fiercebiotech.com)
  • Ángel Luis Sánchez Bayón, a 66-year-old resident of Cadreita (Navarre), had a left ventricle with less than 15% capacity of ejection (blood pumping), added to which was a serious coronary pathology and diabetes as principal associated diseases. (healthcanal.com)
  • However, this carried-over kinetic energy did not significantly alter the work done by the heart for ejection. (physiology.org)
Tract4
Functional2
Patients20
  • Ancora Heart kicked off a European clinical study for its device designed to directly repair an enlarged left ventricle from the inside, as a treatment for patients suffering from heart failure. (fiercebiotech.com)
  • The company estimates that about half of patients with heart failure have an enlarged left ventricle, which causes more stress on the heart as it tries to pump blood to the body. (fiercebiotech.com)
  • This is the second clinical test of the AccuCinch system focused specifically on heart failure and an enlarged left ventricle-the company began enrolling patients in a U.S. feasibility study this past May (PDF). (fiercebiotech.com)
  • Many patients have a conduction delay of the right ventricle. (rug.nl)
  • In these patients it is important to determine the end-systolic phase independently for the right and left ventricle. (rug.nl)
  • There is moderate to strong correlation between CMR and 2D echo in the assessment of LV function parameters and mass in patients with ischemic heart failure. (nih.gov)
  • A comparative study was carried out on patients with CHF to examine the effect of combined treatment, including the experimental application of FSCs, on the morphofunctional parameters of the left ventricle and cognitive functions. (emcell.com)
  • The control group consisted of 20 CHF patients of similar age, sex, and New York Heart Association class. (emcell.com)
  • Rowlinson, G , Dupont, E , Daubeney, P and Severs, NJ (2008) Connexin40 is expressed in the right ventricles of patients with congenital heart malformations In: 28th Annual Meeting of the European Section of the International-Society-for-Heart-Research, 2008-05-28 - 2008-05-31, Athens, GREECE. (surrey.ac.uk)
  • A total of 90 patients with acute left ventricle heart failure treated in our hospital from February 2015 to February 2017 were randomly selected as the objects according to the order of admission and divided into study group (n=45) as well as control group (n=45). (alliedacademies.org)
  • According to the order of admission, we randomly selected 90 patients with acute left ventricle heart failure who were treated in our hospital from February 2015 to February 2017 to conduct the study with the results summarized as follows. (alliedacademies.org)
  • A total of 90 patients with acute left ventricle heart failure who were treated in our hospital from February 2015 to February 2017 were selected as the objects and divided into study group (n=45) as well as control group (n=45) after being diagnosed to have acute left ventricle heart failure and being approved by the ethics committee. (alliedacademies.org)
  • The ventricles' pressure, volume and contraction rate could be measured as they are in patients. (childrenshospital.org)
  • Studies with the chip revealed that heart cells in patients with Barth syndrome contracted weakly and produced an excess of reactive oxygen species (ROS). (childrenshospital.org)
  • Why are heart failure specialists seeing more patients with ARVC/D? (heart.org)
  • As a result, ARVC/D patients eventually develop heart failure. (heart.org)
  • Two patients with mild pulmonary hypertension died 1 month and 10 months, respectively, after heart transplantation and biventricular assist device implantation to support the failing graft. (biomedcentral.com)
  • Heart transplantation in failed Fontan circulation, though technically challenging, may be offered in this difficult group of patients who are otherwise hopeless. (biomedcentral.com)
  • In community, adult patients in whom a one-and-a-half ventricle working order is required could be contemplate oned," concurring to the makers, who combined that their novella percutaneous treatment ascendancy on the dole for sons if smaller desires are elbow. (piwip.com)
  • Systolic and lusitropic function increased at faster heart rates in IPAH patients, but were markedly blunted in SSc-PAH. (nih.gov)
Circulation3
Trabeculae2
Ca2 Sensitivity - Muscle Contraction - Fitness VIP
Ca2 Sensitivity - Muscle Contraction - Fitness VIP (fitness-vip.com)
What is the cure for an enlarged left ventricle with reduced contraction?
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Ventricle (heart) - Wikipedia
Ventricle (heart) - Wikipedia (en.wikipedia.org)
Https://www.medicalnewstoday.com/articles/320650.php
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Interstitial lung disease: Causes, outlook, and diagnosis
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Tachycardia: Causes, symptoms, and treatments
Tachycardia: Causes, symptoms, and treatments (medicalnewstoday.com)
Heart, artificial; mold, ventricle | National Museum of American History
Heart, artificial; mold, ventricle | National Museum of American History (americanhistory.si.edu)
Half View Of Circulatory System With Headeyesthroat stock photo | iStock
Half View Of Circulatory System With Headeyesthroat stock photo | iStock (istockphoto.com)
A 3D model of a human heart ventricle | EurekAlert! Science News
A 3D model of a human heart ventricle | EurekAlert! Science News (eurekalert.org)
Massive fistulization into the left ventricle of a transplanted heart | SpringerLink
Massive fistulization into the left ventricle of a transplanted heart | SpringerLink (link.springer.com)
Single Ventricle Heart Defects | Children's Hospital of Philadelphia
Single Ventricle Heart Defects | Children's Hospital of Philadelphia (chop.edu)
They saw echogenic foci in both ventricles of the babies heart. No other markers. | Mom Answers | BabyCenter
They saw echogenic foci in both ventricles of the babies heart. No other markers. | Mom Answers | BabyCenter (community.babycenter.com)
April 1973 - Volume 19 - Issue 1 : ASAIO Journal
April 1973 - Volume 19 - Issue 1 : ASAIO Journal (journals.lww.com)
Echocardiography in Adult Congenital Heart Disease | SpringerLink
Echocardiography in Adult Congenital Heart Disease | SpringerLink (link.springer.com)
Phd ceremony H.G. Freling: Imaging of the right ventricle in congenital heart disease | News | University of Groningen
Phd ceremony H.G. Freling: Imaging of the right ventricle in congenital heart disease | News | University of Groningen (rug.nl)
Ancora launches European clinical test of ventricle-binding therapy for heart failure | FierceBiotech
Ancora launches European clinical test of ventricle-binding therapy for heart failure | FierceBiotech (fiercebiotech.com)
The Effect of Contraceptive Pills on Heart Health | ArticleCube
The Effect of Contraceptive Pills on Heart Health | ArticleCube (articlecube.com)
Warning Signs of Blood Clots in the Body | ArticleCube
Warning Signs of Blood Clots in the Body | ArticleCube (articlecube.com)
Hypoplastic Left Heart Syndrome | SpringerLink
Hypoplastic Left Heart Syndrome | SpringerLink (link.springer.com)
Cardiac tamponade: MedlinePlus Medical Encyclopedia
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The human body
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Betapace AF oral Reviews and User Ratings: Effectiveness, Ease of Use, and Satisfaction
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News | Maternal & Child Health Research Institute | Stanford Medicine
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Retinoic acid deficiency alters second heart field formation | PNAS
Retinoic acid deficiency alters second heart field formation | PNAS (pnas.org)
Microstructure-based finite element model of left ventricle passive inflation.
Microstructure-based finite element model of left ventricle passive inflation. (bioportfolio.com)