نتایج جستجو برای: aorta artery

تعداد نتایج: 254416  

Journal: :Chirurgia Polska 2022

Ortner’s syndrome is a non-specific symptom of thoracic aortic aneurysm, therefore, it constitutes challenge — both, diagnostic and therapeutical for contemporary physicians. This paper presents the case 70-year-old patient reporting hoarse voice several months. Due to suspicion neoplastic disease, diagnostics were deepened during this diagnostic, an aneurysm descending aorta with concurrent in...

Journal: :American journal of physiology. Heart and circulatory physiology 2002
Jingbo Zhao Judd Day Zhuang Feng Yuan Hans Gregersen

Morphometric and stress-strain properties were studied in isolated segments of the thoracic aorta, abdominal aorta, left common carotid artery, left femoral artery, and the left pulmonary artery in 16 male Wistar rats. The mechanical test was performed as a distension experiment where the proximal end of the arterial segment was connected via a tube to the container used for applying pressures ...

Journal: :acta medica iranica 0
mohammadi naghadeh m mcgrath jc

we investigated contraction to noradrenaline (na) and kc1 and sensitivity of na at the level of larger vessels (thoracic aorta and vena cava; left renal artery and left renal vein; lateral saphenous artery and lateral saphenous vein and finally central ear artery and marginal ear vein) in a model devised to mimic heart failure. the model presented here is the rabbit coronary ligation model in w...

Journal: :The Chinese journal of physiology 2008
Bo Zhang Yi Liu Ying Luo Wen Niu Zhi-Chao Li

In the present study we reported the expression of the 5-HT2C receptor (5-HT2C-R) in the aorta and the pulmonary artery in rats exposed to hypoxia, and examined its role in vascular smooth muscle cells. Immunochemistry, quantitative RT-PCR, and western blot were used to examine 5-HT2C-R expression. Small interfering RNA (siRNA) was used to explore the role of 5-HT2C-R in vascular smooth muscle ...

Journal: :Journal of cardiac critical care TSS 2022

Abstract Pseudoaneurysms as compared with aneurysms lack a true wall and have higher propensity of rupture. Visceral artery pseudoaneurysms are uncommon life-threatening. We, hereby, report anesthetic management rare case splenic pseudoaneurysm that accompanied the dilatation aorta from its origin extending up to bifurcation.

Journal: :American journal of physiology. Heart and circulatory physiology 2011
Stephanie W Watts Samantha Shaw Robert Burnett Anne M Dorrance

Indoleamine 2,3-dioxygenase (IDO) metabolizes L-tryptophan to L-kynurenine, promotes immunosuppression, and has been described as a consumer of superoxide. We discovered IDO expression in periaortic fat and tested the hypothesis that periarterial IDO functionally reduces agonist-induced contraction. Our model was the thoracic aorta, abdominal aorta, and superior mesenteric artery of the male Sp...

Journal: :Hypertension 2000
J J van der Heijden-Spek J A Staessen R H Fagard A P Hoeks H A Boudier L M van Bortel

Compliance and distensibility are wall properties of large arteries, which may play a role in cardiovascular disease. The purpose of this study was to investigate whether the influence of age on these vessel wall properties differs between vascular territories and is gender-dependent. In a population sample of 498 men and women 20 to 79 years of age, diameter, distensibility, and compliance coe...

Journal: :Japanese journal of pharmacology 1985
M Ohashi A Sekine I Takayanagi

Possible mechanisms of the inhibitory actions of sodium nitroprusside (NaNP) on histamine-induced contractile responses of isolated rabbit aorta, basilar artery and taenia coli were studied. NaNP (3 X 10(-5) M) reduced maximum contractile response to histamine in the aorta, whereas a concentration (10(-4) M) of NaNP slightly shifted the concentration-response curve for histamine towards its hig...

Journal: :Circulation 1969
I T Gabe J H Gault J Ross D T Mason C J Mills J P Schillingford E Braunwald

SUMMARY Twenty-three patients were investigated during diagnostic right and left cardiac catheterization with an electromagnetic catheter-tip velocity probe. The catheter contained a pressure lumen for simultaneous measurements of intravascular pressure. Average peak and mean blood velocities were 66 and 11 cm/sec in the ascending aorta, 57 and 10 cm/sec in the pulmonary artery, 28 and 12 cm/se...

2014
Bilgin Emrecan Firat Durna Serkan Girgin Mohammed Alshalaldeh

INTRODUCTION Different arterial inflow sites have been reported to date for particularly challenging cardiac operations. The ascending aorta, femoral artery, and subclavian artery are the most commonly used sites. Although its use has been reported, the aortic arch has not gained popularity in the performance of cannulation. According to a search performed in the PubMed database, aortic arch ca...

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