TY - JOUR. T1 - Supraceliac, but not infrarenal, aortic cross-clamping upregulates neutrophil integrin CD11b. AU - Hill, Gary E.. AU - Mihalakakos, Paul J.. AU - Spurzem, John R.. AU - Baxter, Timothy B.. PY - 1995. Y1 - 1995. N2 - Objective: To evaluate the effects of supraceliac and infrarenal aortic cross-clamping on the expression of neutrophil integrin CD11b (a marker of systemic cytokine release). Design: Two groups, determined by anatomic placement of aortic cross-clamp. Laboratory personnel were blinded as to group assignment. Setting: University teaching and community hospitals. Laboratory facilities used were university and Veterans Affairs medical centers. Participants: Patients scheduled for aortic surgery. Interventions: Blood sampling was performed at baseline, after 30 minutes of aortic cross-clamp duration, 30 and 90 minutes after reperfusion (for tumor necrosis factor-α plasma levels in infrarenal cross-clamp group), and at baseline and 90 minutes reperfusion (for neutrophil ...
BACKGROUND: To assess the variations in end-tidal CO2 in response to aortic cross-clamping and the relationship with systolic arterial pressure (SAP) changes induced by unclamping. METHODS: Thirty-three patients undergoing infrarenal aortic abdominal aneurysm repair by aorto-aortic prothetic bypass were prospectively studied. All patients were anesthetized with i.v. midazolam (0.05 mg ...
Constriction I, a Paper Collage on Canvas, by Gustavo Ortiz from United Kingdom, Not for sale, Price is $, Size is 13.8 x 9.8 x 0.7 in.
(KudoZ) German to English translation of Einschnürung, Überprüfung auf ....: necking/constriction, check for - [Welding - Engineering (general) (Tech/Engineering)].
Gallagher MJ, López DM, Sheen HV, Hogg FRA, Zoumprouli A, Papadopoulos MC, Saadoun S Abstract PURPOSE: To investigate the effect of increasing spinal cord …
Complex surgical procedures requiring long cross clamp times for complete repair are often patients only chance for survival and better quality of life. Decisions about operability are often difficult, as research has shown that XCL time is an independent predictor of mortality and morbidity in patients undergoing cardiac surgeries [1, 2, 4]. Our results demonstrate that while high in relation to less complex surgeries, a 12.4 % mortality in these complex, high risk patients is lower than that reported by studies in the literature addressing longer XCL times. Nissinen et al. observed a 31.5 % 30-day mortality rate in their patients with XCL times greater than 240 min [2]. Furthermore, Al-Sarraf et al. found that high risk patients (EuroScore ≥ 6) with XCL times ,90 min and those with XCL times , 60 min and ≤ 90 min were respectively 4.7 and 3.1 times more likely to die than those with XCL times ≤ 60 min [1]. Doenst et al. found that XCL times greater than 30 min were associated with a ...
throat constriction - MedHelps throat constriction Center for Information, Symptoms, Resources, Treatments and Tools for throat constriction. Find throat constriction information, treatments for throat constriction and throat constriction symptoms.
Synonyms for constriction hyperemia in Free Thesaurus. Antonyms for constriction hyperemia. 1 synonym for hyperemia: hyperaemia. What are synonyms for constriction hyperemia?
Synonyms for constriction in Free Thesaurus. Antonyms for constriction. 21 synonyms for constriction: tightness, pressure, narrowing, reduction, squeezing, restriction, constraint, cramp, compression, blockage, stenosis, limitation. What are synonyms for constriction?
Nelly Frossard is the author of this article in the Journal of Visualized Experiments: Technique of Minimally Invasive Transverse Aortic Constriction in Mice for Induction of Left Ventricular Hypertrophy
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TY - JOUR. T1 - The retroperitoneal, left flank approach to the supraceliac aorta for difficult and repeat aortic reconstructions. AU - Mills, Joseph L. AU - Fujitani, Roy M.. AU - Taylor, Spence M.. PY - 1991. Y1 - 1991. N2 - Between 1986 and 1990, 11 patients with relative or absolute contraindications to standard infrarenal reconstructions underwent supraceliac aortofemoral bypass. The operation was performed through a left-flank incision extended into the eleventh intercostal space with retroperitoneal and extrapleural dissection. Indications included multiple failed infrarenal reconstructions in four patients, previous removal of infected aortofemoral bypass graft with failure of extra-anatomic bypass in five patients, prior para-aortic lymph node dissection and radiotherapy in one patient, and aortic aneurysmal disease proximal to the renal arteries in one patient. Bypass conduits included either a bifurcated Dacron graft or a tube graft to the left femoral artery with a femorofemoral ...
Aim. To study the effects of N-acetyleysteine and ischemic preconditioning on the portal triad clamping compared to arterial and portal clamping alone.Methods. Eighty EPM 1-Wistar rats were randomized into two groups, depending on inclusion (Group 1) or not (Group 2) of the bile duct in the hepatic vascular pedicle occlusion. Each group was divided into four subgroups as follows. IR 1: 20 minutes after celiotomy, the pedicle containing vascular elements and bile duct to the left lateral and median liver lobes was occluded for 40 minutes, followed by 30 minutes of reperfusion. IPC 1: after 10 minutes of ischemia and 10 minutes of reperfusion, the ischemic preconditioning period, the rats were submitted to the same procedure described for IR 1 Group. NAC 1: the rats received N-acetylcysteine (150 mg/kg) 15 minutes before 40 minutes of ischemia and 5 minutes before 30 minutes of reperfusion. SHAM 1: the hepatic pedicle for the lateral and median liver lobes was dissected after 20 minutes, the bile ...
20-HETE is pro-proliferative, -inflammatory, and -migratory (49, 66), all of which contribute to the pathogenesis of systemic and pulmonary hypertension. Although the increase in 20-HETE by hypoxia inhibited acute hypoxia-induced pulmonary artery constriction (2, 69), it time and dose dependently increased superoxide production from NADPH oxidases in the cultured pulmonary artery endothelial cells (37). Also, studies have reported that 20-HETE-induced superoxide mediated flow-induced constriction of cerebral arteries (58). Our current results further demonstrated that inhibition of 20-HETE biosynthesis by DDMS decreased mitochondrial superoxide generation and conversely application of 20-HETE to endothelium denuded pulmonary arteries for 12 h elicited superoxide generation from mitochondria but not from extra-mitochondrial sources. This led us to the question of how does 20-HETE increase mitochondrial superoxide generation? One potential explanation was 20-HETE passed through the gap junctions ...
A data storage system that includes a positioning system for positioning the write/read mechanism and the storage medium of the data storage device with respect to each other in first and second predefined directions. The positioning system comprises a positioning apparatus comprising microfabricated first and second positioning assemblies. The positioning system further comprises a controller to position a positionable support structure of the first positioning assembly in a first predefined direction within a range of positioning that is larger than the range of movement of a moveable support structure of the first positioning assembly by controlling (A) a stationary support structure clamp in clamping and unclamping the positionable structure to and from the support structure, (B) a moveable structure clamp in clamping and unclamping the positionable support structure to and from the moveable support structure, and (C) the movement of the moveable support structure. In one embodiment, one of the
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Aortic cross clamping is associated with spinal cord ischemia. This study used a rat spinal cord ischemia model to investigate the effect of distal aortic pressure on spinal cord perfusion. Male Sprague-Dawley rats (n=12) were divided into thre
Bleeding is a major problem during liver resection. Vascular inflow occlusion, also known as Pringle maneuver, has been commonly employed to reduce blood loss during liver surgery. However, Pringle maneuver might cause ischaemic insult to the remnant liver and lead to post-operative liver dysfunction.. The investigators hypothesize that liver resection without the use of vascular inflow occlusion (Pringle maneuver) is associated with lower postoperative complications rate.. The aim of this study is to evaluate whether elective open liver resection without vascular inflow occlusion (Pringle Maneuvre) would lead to a reduction of post-operative surgical complications in patient with hepatocellular carcinoma.. Eligible patients undergoing liver resection in the Prince of Wales Hospital will be recruited and randomized into 2 study arms comparing the effect of Pringle maneuver. ...
Looking for online definition of Segmental arteries in the Medical Dictionary? Segmental arteries explanation free. What is Segmental arteries? Meaning of Segmental arteries medical term. What does Segmental arteries mean?
Dipeptidyl peptidase-4 (DPP-4) inhibitors are hypoglycemic agents. DPP-4 inhibitor has cardioprotective effects after transverse aortic constriction (TAC), but role of DPP-4 on cardiac fibrosis after TAC is not well known. Our aim was to determine the effects of DPP-4 on cardiac fibrosis in murine TAC model. Wild-type mice and DPP-4 knockout mice were subjected to TAC. Wild-type mice were then treated with vehicle or DPP-4 inhibitor. DPP-4 activities in serum and heart tissue were significantly increased at 2 weeks after TAC, but they were significantly decreased by DPP-4 inhibitor treatment ...
Retinal vascular occlusion occurs when one of the vessels carrying blood to or from your retina becomes blocked or contains a blood clot.
Primos Maximum, Remington Versa Max, 12 Ga, .660 Constriction Designed to increase the range and pattern density of your favorite turkey gun! The Jelly Head Max
I need some advice creating a constriction ability for a snake character using entangle, or is there some other power I should use to do this. 6E
Pringle, Gary Johnson, who is currently in a tube at Chutney on the Fritzs branch of Tesco, (other shopping emporia are available, guys and girls), has revealed that he is not looking forward to his visit to a strangers stomach. I know that it...
Surgery on the descending aorta almost always involves the application of a cross-clamp so the surgeon is able to sew a graft to it. As a general rule, the more…
Background: Aortic valve stenosis (AS) and hypertension (HT) both lead to left ventricular (LV) hypertrophy as a consequence of chronic pressure overload, but differences in LV geometric adaptation have been suggested.. Methods: To study the influence of type of pressure overload on LV structure, we pooled baseline echocardiograms and clinical information from HT patients with electrocardiographic LV hypertrophy in the Losartan Intervention For Endpoint reduction in hypertension (LIFE) study and asymptomatic AS patients in the Simvastatin Ezetimibe in Aortic Stenosis (SEAS) study. Patients , 45 years, or with diabetes, known cardiovascular disease or , grade 1 aortic valve regurgitation were excluded. HT was defined as history of HT or clinic blood pressure ,140/90 mmHg. The study population was divided according to type of pressure overload: From LIFE HT (n=265); from SEAS AS (n=761) or combined HT and AS (n=649). LV geometry was assessed from LV mass/height2.7 (LV hypertrophy if , 49.2 g/m2.7 ...
Four weeks of aortic banding resulted in significant hypertrophy in rats. This was evident from a significant increase in LVm/BW ratios. Furthermore, the hypertrophy was concentric in nature as evident from significant increases in the IVS and LVPW, an indication of increased septal and posterior wall thickness, respectively, at both systole and diastole. There was no change observed in LVID, an indication of increased chamber size, at systole and diastole. Results of the current study are consistent with results from our previous study (4). Treatment of aortic-banded rats with 2.5 mg·kg−1·day−1 resveratrol completely prevented development of hypertrophy because there was a normalization of the increase in left ventricle-to-body weight ratio. Resveratrol treatment also prevented concentric remodeling by normalizing IVS and LVPW at both systole and diastole. The beneficial effects of resveratrol in preventing PO-induced cardiac hypertrophy are consistent with another recent study, which ...
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Handprinted in the UK, 100%Heavy Cotton Fruit of the Loom Constriction tshirt in BlackThe printing wont fade or crack even when tumble dried so your shirt will stay as soft and silky for years to come. an Ideal gift for anyone interested in constriction Sizes are Small 35 - 37, Medium 38 - 40, Large 40 - 41, XL 44 - 46, XXL 47 - 49, XXXL 50 -52
MedicalExpress will run as a continuous flow journal, a characteristic shared by no other Brazilian periodical. Accepted articles will be submitted to language polishing, composition, and submitted to authors for final approval. As soon as this is completed, articles will be made public. It is expected that accepted articles would be published approximately 30 days after acceptance.
Sentence Examples with the word constriction: Often the head is retractile, and a constriction of flexible cuticle distal to it is termed a neck: in Philodinaceae there are a series of thin flexible rings…
ZTR Control Systems new BOA™-WS (Bolt-on Adhesion™-Excitation/Wheel Slip Control System) is designed to boost tractive effort on EMD Dash-2 locomotiv...
Introduction: We report our experience with laparoscopic major liver resection in Korea based on a multicenter retrospective study. Materials and methods: Data from 1,009 laparoscopic liver resections conducted from 2001 to 2011 were retrospectively collected. Twelve tertiary medical centers with specialized hepatic surgeons participated in this study. Results: Among 1,009 laparoscopic liver resections, major liver resections were performed in 265 patients as treatment for hepatocellular carcinoma, metastatic tumor, intrahepatic duct stone, and other conditions. The most frequently performed procedure was left hemihepatectomy (165 patients), followed by right hemihepatectomy (53 patients). Pure laparoscopic procedure was performed in 190 patients including 19 robotic liver resections. Hand-assisted laparoscopic liver resection was performed in three patients and laparoscopy-assisted liver resection in 55 patients. Open conversion was performed in 17 patients (6.4 %). Mean operative time and ...
Emergency endovascular aneurysm repair (eEVAR) for ruptured abdominal aortic aneurysm (rAAA) must be carried out instantly. This requires firm logistics that include the ability to cross-clamp the aorta without delay. The present article focuses on the technique of balloon control of the aorta in eEVAR with aspects on indications as well as the organization of this type of vascular service. Transfemoral insertion of the occlusion balloon under local anesthesia is advocated and described. The use of dual balloons shortens the time of visceral ischemia without necessitating repeat declamping until the aneurysm has been completely excluded. Staged declamping upon completion is necessary just as in open repair. A "balloon test" is suggested to better identify those high risk patients with a rAAA who may benefit from endovascular rAAA repair.. ...
Retinal Vascular Occlusion (RVO) Market Overview Retinal disease burden has continued to rise worldwide, more so among the geriatric population. Many of
One-kidney, one clip (1K1C) and two-kidney, one clip (2K1C) Goldblatt hypertension was produced in rats by placing 0.30, 0.25, or 0.20 mm silver clips on the left renal artery. Mean arterial pressure (MAP) and plasma renin activity (PRA) were measured in conscious rats 24 to 28 days after clipping. The MAP in control rats (n = 38) was 116 +/- 1 mm Hg (mean +/- SEM). The 0.30, 0.25, and 0.20 mm clips produced MAPs of 133 +/- 2, 161 +/- 5, and 189 +/- 5 mm Hg, respectively, in 1K1C rats, and 123 +/- 2, 129 +/- 3, and 172 +/- 5 mm Hg in 2K1C rats (n = 17-20). When 1K1C and 2K1C groups were compared, MAP was significantly greater in 1K1C rats at all clip sizes. No treatment groups PRA was different than control (4.8 +/- 0.4 ng AI/ml/hr), except for the 0.20 mm 2K1C rats (16.2 +/- 3.1 ng AI/ml/hr). Renal artery pressure (RAP) was measured in another series of experiments and was not different from control in all but the 0.20 mm 1K1C rats. With identical clip sizes, 2K1C rats showed smaller pressure ...
Gastroenterology Research and Practice is a peer-reviewed, Open Access journal that provides a forum for researchers and clinicians working in the areas of gastroenterology, hepatology, pancreas and biliary, and related cancers. The journal welcomes submissions on the physiology, pathophysiology, etiology, diagnosis, and therapy of gastrointestinal diseases.
Serotonin, in addition to its fundamental role as a neurotransmitter, plays a critical role in the cardiovascular system, where it is thought to be involved in the development of cardiac hypertrophy and failure. Indeed, we recently found that mice with deletion of monoamine oxidase A had enhanced levels of blood and cardiac 5-HT, which contributed to exacerbation of hypertrophy in a model of experimental pressure overload. 5-HT2A receptors are expressed in the heart and mediate a hypertrophic response to 5-HT in cardiac cells. However, their role in cardiac remodeling in vivo and the signaling pathways associated are not well understood. In the present study, we evaluated the effect of a selective 5-HT2A receptor antagonist, M100907, on the development of cardiac hypertrophy induced by transverse aortic constriction (TAC). Cardiac 5-HT2A receptor expression was transiently increased after TAC, and was recapitulated in cardiomyocytes, as observed with 5-HT2A in situ labeling by immunohistochemistry.
Neurosurgery. 2010 Sep;67(3 Suppl Operative):ons102-7; discussion ons107. doi: 10.1227/01.NEU.0000383152.50183.81. Clinical Trial
JOURNAL «ANGIOLOGY AND VASCULAR SURGERY» №3 2017, VOLUME 23: Oxidative carbonylation of proteins in experimental hind-limb ischaemia-reperfusion injury
Definition of posterior basal segmental artery of left/right lung. Provided by Stedmans medical dictionary and Drugs.com. Includes medical terms and definitions.
Acute aortic occlusion is an emergent vascular condition not encountered routinely. Given its varied presentations, including neurovascular deficits and mimicking an acute abdomen, the diagnosis is often delayed causing increased morbidity and mortality. We present a case of acute abdominal aortic occlusion masquerading as sudden onset lower extremity pain and weakness in an 86-year-old female requiring emergent thrombectomy. This is only the second case report to discuss the use of point-of-care ultrasound to expedite diagnosis and management. ...
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The Glissonean pedicle transection method has been reported to shorten operation time, reduce intraoperative blood loss, and minimize surgical risks in HCC patients undergoing hepatectomy 22. The Glissonean approach may therefore be more beneficial for HCC patients undergoing curative resection than other hilar vascular control methods such as the Pringle maneuver. However, in a large series, only 17.1% of patients underwent major hepatectomy involving two or more segments, with most patients (80.3%) undergoing segmentectomy or subsegmentectomy18. Our patient cohort differs in the extent of liver resection as well as including only patients with large (, 5 cm) nodular HCCs. 56% Of the 25 patients in our Glissonean group, 14 (56%) underwent removal of more than 2.5 segments (right trisegmetectomy).. To our best knowledge, our study is the first to compare the surgical effectiveness and safety of Glissonean transection with the Pringle maneuver in patients with large HCC undergoing radical ...
A method and device for occluding a patients ascending aorta, maintaining circulation of oxygenated blood in the patient and delivering cardioplegic fluid to arrest the patients heart. An aortic occlusion catheter has an occluding member for occluding the ascending aorta. The aortic occlusion catheter passes through a cannula. Delivery of oxygenated blood is accomplished through either the cannula or the aortic occlusion catheter.
Since the 1950s, several investigators have published reports of patients with dysphagia who had associated lower esophageal ringlike constrictions, but each investigator had a different opinion as to the cause and nature of these rings. In 1953, Ingelfinger and Kramer believed that these rings occurred as a result of a contraction by an over...