The aim of the present study was to examine the histological and morphometric properties of skeletonized gastroepiploic artery (GEA) and the risk factors for intimal hyperplasia. We obtained the redundant distal segments of skeletonized GEAs from 33 patients undergoing coronary bypass surgery and microscopically examined the transverse sections just distal ...

The left internal mammary artery, a branch of the left subclavian artery, is the most commonly used arterial graft during coronary artery bypass grafting. Although extremely rare, an abnormal origin of left subclavian artery may lead to a difficult coronary angiography procedure or result in a catastrophic complication if iatrogenically ...

We describe the successful management of a stent protruding from the right coronary ostium into the aortic root in the setting of aortic valve replacement for aortic stenosis. Due to advances in medical care more elderly patients present for aortic valve surgery after percutaneous coronary intervention. Therefore, with an aging ...

Objectives- The purpose of this study was to compare Doppler velocimetric indices between the left and right intra-abdominal umbilical arteries in normally grown and growth-restricted fetuses. Methods- In this cross-sectional study, Doppler indices of the intra-abdominal segment of the left and right umbilical arteries were measured lateral to the fetal ...

Intracranial artery stenosis may be the most frequent cause of ischemic stroke in the world. Early detection of asymptomatic intracranial artery stenosis may allow for therapeutic intervention. Most elements of the Framingham stroke risk profile (FSRP) are also risk factors for intracranial artery stenosis. Thus, the FSRP might play a ...

64-slice multidetector computed tomography (MDCT) allows more reliable and non-invasive evaluation of the coronary artery bypass grafts for occlusion or stenosis both in symptomatic and asymptomatic patients and also progression of disease in native coronary vessels.

Variations in the vascular system of upper limbs are relatively common, with considerable significance towards the clinical and surgical point of view. The major arterial variations reported are of high origins of radial and ulnar arteries. During routine dissection of an upper extremity in the Department of Anatomy, Medical University ...

We report the case of a patient presenting with unstable angina, in whom information obtained by coronary angiography was inconclusive for the existence of a culprit lesion in the ostium of the right coronary artery. The use of optical coherence tomography was required for proper lesion assessment.

Catheter-induced left main coronary artery (LMCA) dissection is a dramatic, although uncommon complication of diagnostic coronary angiography and requires prompt treatment. We describe a case of iatrogenic occlusive dissection of the LMCA during coronary angiography, treated by subsequent percutaneous recanalisation.

AbstractAim:To investigate the protection of pulmonary arterial rings and cardiac myocytes of rats by raisanberine (RS), a derivative of berberine, against hypoxia injury and to elucidate the action mechanisms.Methods:Adult SD rats were exposed to intermittent hypoxia for 17 d or 28 d. The pulmonary arterial rings were isolated and vascular ...

The purpose of this article is to review the normal anatomy of the aortic arch and the most common variations of congenital aortic arch anomalies using low-radiation-dose, defined as a dose-length product of 7-15 mGy × cm, MDCT angiography. Radiologists should be prepared to fully describe congenital aortic arch anomalies; ...

The aim of this feasibility study was to evaluate [(18)F]-2-Fluoro-A85380 for in vivo imaging of arterial nicotinic acetylcholine receptors (nAChRs) in humans. Furthermore, potentially different vascular uptake patterns of this new tracer were evaluated in healthy volunteers and in patients with neurodegenerative disorders. [(18)F]-2-Fluoro-A85380 was developed for in vivo positron ...

A previously validated computer model of the normal pulmonary circulation is adapted to simulate pulmonary arterial hypertension (PAH) in humans. Model predictions are used to explore the suitability of currently accepted criteria for diagnosing PAH by correlating hemodynamic data with the degree of vascular compromise (disease severity). Model predictions demonstrate ...

We report a 16-year-old girl in whom Takayasu arteritis (TA) was manifested mainly by severe arterial hypertension on her right arm, which was detected during a routine examination at school. Her systolic blood pressure on the right arm was significantly higher than that on the left one. There was also ...

Introduction.  Endothelium-derived relaxing factors such as nitric oxide (NO), prostanoids, and endothelium-derived hyperpolarizing factor (EDHF) are thought to play an important role in vasodilation of penile arteries. Aim.  The present study investigated the mechanisms involved in flow- and acetylcholine-induced vasodilation in penile arteries, and whether acetylcholine- and flow-mediated vasodilation is ...

Described is a 27-year-old pregnant woman with May-Thurner syndrome who experienced extensive pelvic and lower extremity thromboses during the antepartum period. The patient was referred for a symptomatic deep venous thrombosis at 23 weeks of gestation. Ultrasonography demonstrated a massive thrombus in the left iliofemoral vein. Heparin was given intravenously. Due ...

Brachial arterial occlusion is rare in children and adolescents. Once a traumatic cause is excluded, the differential diagnosis consists of a variety of rare conditions. We report the case of a 12-year-old girl whose presenting symptoms-an absent radial pulse and Raynaud's phenomenon of the right hand-could be easily mistaken for ...

Takayasu's arteritis is a chronic inflammatory disease that affects the pulmonary artery, as well as the aorta and its major branches. A 59-year-old man presented with a 2-month history of progressive exertional dyspnea. Further examination revealed marked wall thickening of the pulmonary trunk and bilateral proximal pulmonary artery, resulting in ...

A 59-year-old man with a history of ascending aorta replacement for an aortic dissection using gelatin-resorcin-formalin glue at age of 50 years presented with paroxysmal nocturnal dyspnea. An echocardiogram showed severe aortic regurgitation associated with aortic root enlargement. Chest computed tomography showed that the ascending aorta was dilated and a pseudoaneurysm ...

To evaluate safety and feasibility of microcoil embolization of the common hepatic artery under proper or distal balloon inflation in preoperative preparation for en bloc celiac axis resection for pancreatic body cancer. Fifteen patients (11 males, 4 females; median age, 67 years) with pancreatic body cancer involving the nerve plexus ...

Studies on the amphibian respiratory tract microvascular anatomy are few and contradictory. Using scanning electron microscopy of vascular corrosion casts, correlative light microscopy of paraplast-embedded Goldner-stained serial tissue sections, and three-dimensional morphometry, we studied the topographic microvascular anatomy in the trachea of the adult South African Clawed Toad, Xenopus laevis ...

Sudden death is common in patients with congenital coronary artery anomalies mainly when the left main coronary artery originates from the right coronary sinus. Ventricular fibrillation in these patients is irreversible unless defibrillation can be rapidly performed. We describe a 57-year-old male with an anomalous origin of circumflex and the ...

A 52-year-old man with massive hemoptysis underwent a left upper lobectomy. He suddenly reported a severe headache and lost consciousness on postoperative day 4. Computed tomography of the brain demonstrated a subarachnoid hemorrhage due to right vertebral artery dissection. Fortunately, he recovered well with intensive neurosurgical treatment. Vertebral artery dissection ...

The authors present the case of a 78-year-old man who presented with a subarachnoid hemorrhage due to rupture of an aneurysm at the origin of the persistent primitive olfactory artery (PPOA). Interestingly, the PPOA was originating from the A(1) segment of the anterior cerebral artery and coursed anteromedially along the ...

Anomalous origin of the left coronary artery (LCA) from the right coronary artery sinus is a rare congenital coronary anomaly. We report a case of a 48-year-old symptomatic man who was admitted to our clinic with a history of hypertension, type 2 diabetes mellitus, myocardial infarction and hypercholesterolemia. Coronary angiography ...

Portal vein aneurysm (PVA) is a rare abnormal dilatation of the portal vein, which has not been reported in dogs. We describe the findings of ultrasound and computed tomography in a case of PVA in a young male toy poodle, with the final diagnosis established by explorative surgical observation. The ...

Purpose: We have reconstructed aortic valves using autologous pericardium treated with glutaraldehyde since April 2007. However, the strength of the human pericardium has not been confirmed. We compared tensile strength between glutaraldehyde-treated human pericardium and aortic valve leaflets with various degrees of calcification to determine their suitability for use in ...

Pulmonary sequestration is a rare anomaly, which does not have a connection with the bronchial system and gets its blood supply, generally, from the aorta or its branches. Anatomically, two different forms were described: intralobar and extralobar. Although 74% of intralobar pulmonary sequestrations get their blood supply from the descending ...

The activated vitamin D receptor (VDR) may have an important role in vascular health. The objective of this study was to determine whether there is an association between the expression of VDRs in coronary arteries and the extent of diet-induced atherosclerosis. Utilizing a cohort of 39 postmenopausal female cynomolgus monkeys ...

Eosinophilia has been reported as a very rare cause of stroke in children. The thrombotic event may be either due to cardiac damage induced by eosinophils and their granular protein, that is, the major basic protein, or the systemic hypercoagulable state induced by eosinophilia. We report here a case of ...

BackgroundPulmonary artery vasoconstriction and vascular remodeling contribute to a sustained elevation of pulmonary vascular resistance and pressure in patients with pulmonary arterial hypertension (PH), an often fatal hemodynamic disease. The effect of docosahexaenoic acid monoacylglyceride (MAG-DHA) and the role of the 17 kDa protein kinase C-potentiated inhibitor protein (CPI-17) were ...

Malposition of the branch pulmonary arteries is a rare malformation with two forms. In the typical form, pulmonary arteries cross each other as they proceed to their respective lungs. The "lesser form" is characterised by the left pulmonary artery ostium lying directly superior to the ostium of the right pulmonary ...

OBJECTIVE: The optimal treatment of multivessel coronary artery disease is not well established. Hybrid coronary revascularization by combining the left internal mammary artery-left anterior descending artery graft and drug-eluting stents in non-left anterior descending artery territories might offer superior results compared with sole coronary artery bypass grafting or sole percutaneous ...

Aneurysms of the left main coronary artery are extremely rare. The cause of such aneurysms is uncertain. Although the treatment of distal left main aneurysms is very complicated, definitive treatment is necessary because the aneurysm may grow further and cause embolism or rupture. Herein, we report a case of acute ...

Incomplete double aortic arch is a rare anomaly resulting from atresia rather than complete involution in the distal left arch resulting in a non-patent fibrous cord between the left arch and descending thoracic aorta. This anatomic anomaly may cause symptomatic vascular rings, leading to stridor, wheezing, or dysphagia, requiring surgical ...

We report a case of transcatheter arterial chemoembolization (TACE) to treat hepatocellular carcinoma (HCC) that was supplied by the short gastric artery. A 67-year-old woman with two nodular HCCs underwent repeated TACE. One of the nodules was supplied by the short gastric artery.

Objective: To determine if external rotation of the leg increases the size and accessibility of the femoral vein compared with a neutral position. Methods: One hundred patients presenting to a tertiary teaching hospital were prospectively recruited. The right common femoral vein of each subject was scanned with a linear probe ...

We recognize that increased systolic pressure is the most challenging form of hypertension today and that pulse pressure as an independent cardiovascular risk factor has focused attention on arterial stiffness and wave reflections as the most important factors determining these pressures. In recent years, many studies emphasized the role of ...

With combined positron emission tomography and computed tomography (CT), we investigated coronary arterial uptake of 18F-sodium fluoride (18F-NaF) and 18F-fluorodeoxyglucose (18F-FDG) as markers of active plaque calcification and inflammation, respectively. The noninvasive assessment of coronary artery plaque biology would be a major advance particularly in the identification of vulnerable plaques, ...

Serotonin is produced by pulmonary arterial endothelial cells (PAEC) via tryptophan hydroxylase-1 (Tph1). Pathologically, serotonin acts on underlying pulmonary arterial cells, contributing to vascular remodeling associated with pulmonary arterial hypertension (PAH). The effects of hypoxia on PAEC-Tph1 activity are unknown. We investigated the potential of a gene therapy approach to ...

The purpose of this study was to examine the role of heparanase in controlling thrombosis following vascular injury or endovascular stenting. The use of endovascular stents are a common clinical intervention for the treatment of arteries occluded due to vascular disease. Both heparin and heparan sulfate are known to be ...

Background. Despite the proposal of different means of non-invasive arterial stiffness assessment, none offers simultaneous information on whole-body peripheral arterial condition. We investigated the validity of applying a six-channel electrocardiogram-based pulse wave velocity (ECG-PWV) measurement system for this purpose. Methods. The study consisted of two parts. Part One enrolled hypertensive ...

We report the intraoperative finding, at a transit-time flow measurement, of competitive flow between a venous and an arterial graft in a 72-year old woman who underwent uncomplicated coronary artery bypass grafting 3. The blood flow in the left internal mammary artery (LIMA) improved only after temporary occlusion of the ...

A 56-year-old man with acute myeloleukemia was hospitalized for lumbar pain. Treatment with antibiotics failed to improve the symptoms. For the diagnosis of infiltration by leukemia we performed CT-guided percutaneous needle biopsy of the L2-L3 disc and the L3 vertebral body using a left posterolateral approach. His symptoms were improved ...

BACKGROUND AND OBJECTIVES: The blood supply of the lower one-third of the sartorius muscle is mainly provided by the descending genicular artery (saphenous artery). The terminal branches of the saphenous artery, together with the perforators of the posterior tibial artery and medial inferior genicular artery, form a stable and rich ...

We report the 44-year follow-up of a 9-year-old girl who underwent a saphenous vein interposition graft in 1964 after suffering extensive pelvic trauma with complete disruption of the right common femoral artery. The patient recovered from this injury and experienced no disability or pain until 2008, when she suddenly developed ...

To evaluate the predictive value of preoperative predictors for portal vein thrombosis (PVT) after splenectomy with periesophagogastric devascularization. In this prospective study, 69 continuous patients with portal hypertension caused by hepatitis B cirrhosis underwent splenectomy with periesophagogastric devascularization in West China Hospital of Sichuan University from January 2007 to August ...

Lower extremity traumatic injuries with exposed vessels mandate prompt repair. Here the authors present a traumatic case in which a contralateral "septocutaneous tibialis posterior artery perforator"-based cross-leg flap was used to cover an open wound.

Serotonin (5-HT) and fibronectin (FN) have been associated with pulmonary hypertension (PH). We previously reported that FN is posttranslationally modified by tissue transglutaminase (TGase) to form serotonylated FN (s-FN) in pulmonary artery smooth muscle cells and that serotonylation stimulates their proliferation and migration, hallmarks of PH. We hypothesized that s-FN ...

Ultrasound-guided supraclavicular brachial plexus block carries a risk for puncture of vascular structures. In this study, we determined the frequency with which the transverse cervical artery (TCA) and the dorsal scapular artery (DSA) are detected by ultrasound evaluation at 3 probe positions during supraclavicular block. Ultrasound examinations of the supraclavicular ...