Pulmonary arteriovenous malformations (PAVM) consist of an abnormal connection between the pulmonary artery and vein bypassing the pulmonary capillary bed. Pulmonary arteriovenous fistulae are characterized by a right-to-left shunt of variable magnitude, and they may be accompanied by other congenital anomalies. We describe a case of pulmonary arteriovenous fistula with ...

PURPOSE: Publications describe variable spatial relationships between the axillary artery and brachial plexus whereby the axillary artery may be compressed by the median nerve roots when the upper extremity is hyper-abducted. The purpose of this study is to quantify the frequency of variant positioning of the axillary artery with respect ...

We report a case of 2-year-old boy who presented late after PDA device embolization to descending aorta. He had mild obstruction with erosion of the intimal layer of descending aorta caused by the device that was successfully retrieved surgically with reconstruction of the aortic segment.

Cerebral aneurysms carry significant risks because rupture-related subarachnoid hemorrhage leads to serious and often fatal consequences. The rupture risk increases considerably for multiple aneurysms. Multiple aneurysms can grow from the same location of an artery, and the interaction between these aneurysms raises the rupture risk even higher. Four aneurysm pair ...

Williams-Beuren syndrome is a rare neurodevelopmental disorder. We present the case of a 27-year-old patient with Williams-Beuren syndrome and a juxtarenal abdominal aorta coarctation. As arterial hypertension (AHT) was not controlled, bilateral renal artery bypasses were performed at the age of 2 years by means of a hepatorenal bypass and ...

BACKGROUND: To evaluate the long-term results in a multicentric continuous series of narrowing lesions of the aortic bifurcation treated with a kissing stent. METHODS: From January, 1st 1999 to the December, 31st 2001, all of the patients (n = 80) presenting with stenosis of the aortic bifurcation (n = 15) ...

The aim of this article is to report a case of symptomatic fibromuscular dysplasia (FMD) involving the external iliac arteries (EIAs). An 88-year-old woman was admitted to the vascular service, with a painful right posterior ankle ulcer that had progressively worsened during the course of a month. Her medical history ...

We report the case of a child who underwent left lateral split-liver transplantation for biliary atresia and surgical ligation of the origin of the splenic artery at the time of the transplantation. Post-transplant portal vein thrombosis was initially treated with a meso-rex shunt. This shunt subsequently thrombosed and was replaced ...

Right pulmonary artery-to-left atrial communication is a rare congenital vascular malformation that results in a right-to-left shunting. This report describes the case history of a neonate with a large right pulmonary artery-to-left atrial connection resulting in cyanosis and severe heart failure who underwent successful early catheter interventional therapy. In the ...

Object Investigators conducting the International Study of Unruptured Intracranial Aneurysms, sponsored by the National Institutes of Health, sought to evaluate predictors of future hemorrhage in patients who had unruptured mirror aneurysms. These paired aneurysms in bilateral arterial positions mirror each other; their natural history is unknown. Methods Centers in the ...

Background: With recent advances in multimodality cardiac imaging, a number of methods exist for the noninvasive assessment of aortic disease. Although multidetector row computed tomography (MDCT) remains the gold standard for aortic measurements, there are a number of limitations including radiation and contrast-induced nephropathy. Transthoracic echocardiography (TTE) is an alternative ...

Since its introduction by Campeau in 1989, the transradial approach for coronary angiography has gained significant popularity among interventional cardiologists due to its lower access site complication rates, cost-effectiveness, and shorter hospital course. Although the transradial approach is much safer than the transfemoral approach, it has its own inherent rare ...

We report on real-time control of balloon inflation inside porcine arteries. In a first step, experiments were done in a coronary artery of an excised heart. In a second step, experiments were done in a beating heart setup providing conditions very close to in vivo conditions without the complications. A ...

ABSTRACT: INTRODUCTION: In two cases described here, a puncture of the subclavian artery, which had been inadvertently cannulated during unsuccessful access of the internal jugular vein, was successfully closed by using a closure device based on a collagen plug (Angio-Seal, St. Jude Medical, St. Paul, MN, USA). This technique is ...

The combination of complete transposition of the great arteries and cor triatriatum is extremely rare. We report three infants with this rare combination and discuss the anatomic details apparently unique to the combined lesion.

INTRODUCTION: Tumors of the neck of the pancreas may involve the superior mesenteric and portal veins as well as the termination of the splenic vein. This presents a difficult problem since the pancreas cannot be transected through the neck as is standard in a Whipple procedure. Here, we present our ...

Abstract:Rationale:Within the last decade biochemical markers have emerged as attractive tools to assess pulmonary arterial hypertension prognosis, being non-invasive and easily repeatable.ObjectivesTo determine whether biomarkers measured at initial diagnostic right heart catheterization predict 3-year all-cause mortality for incident cases of pulmonary arterial hypertension, independently of clinical and hemodynamic parameters.MethodsIncident cases ...

The authors describe a technique in which a microsurgical anastomosis between an artery and a vein in an afferent direction (through a vein graft, when necessary) of a degloved flap is used to revascularize or arterialize the flap. In 3 difficult cases, there was substantial salvage of flap tissue.

BACKGROUND: Patients with spontaneous coronary artery dissection may require surgical revascularization. Reports on the surgical management of this pathology are primarily limited to classic coronary artery bypass grafting via sternotomy on cardiopulmonary bypass, although a limited number of reports of alternatives also exist. METHODS: We describe a case of robotic ...

PURPOSE: The authors present an anatomical study of the flexor digitorum superficialis synovial flap and its clinical application for palmar soft tissue defects in hand trauma. METHODS: Green latex was injected into the brachial artery of thirty-one human upper limbs from corpses donated to science. Anatomical features of this pedicled ...

Although the lateral segment (LS) from the split-liver of a deceased donor or a live donor can increase the organ pool of pediatric patients awaiting liver transplantation, the shortage of organ donation in Asia countries is still serious and results in high death rates of pediatric patients. The medial segment ...

OBJECTIVES: To investigate the extent of subclinical atherosclerosis in asymptomatic familial hypercholesterolemia (FH) patients using non-invasive images techniques. PATIENTS, METHODS AND RESULTS: The atherosclerotic burden of 36 molecularly defined FH patients (18 males, 45.7±10.9 years) without evidence of cardiovascular disease receiving lipid-lowering treatment and 19 (47.8±11.3 years) controls was investigated. ...

Vascular access perfectly reproduces myointimal hyperplasia that can be found in coronary or peripheral arteries and has a major advantage that these other sites cannot match: it is quite superficial and not close to a major vital organ and also affects a population that will attend the hospital for dialysis ...

J Clin Hypertens (Greenwich). 2012;14:245-249. ©2012 Wiley Periodicals, Inc. Atorvastatin is postulated to improve arterial stiffness in patients with diabetes mellitus or hypercholesterolemia; however, in elderly hypertensive patients, its effect on arterial stiffness and the possible mechanisms are unknown. A total of 73 elderly hypertensive patients were enrolled to receive ...

BackgroundThere are very few reports assessing middle cerebral artery (MCA) stents using multidetector computed tomography (MDCT).PurposeTo assess MCA stents using multidetector CT angiography (CTA) in vivo evaluation: the differences in the CTA results according to the three different kernels.Material and MethodsWe retrospectively evaluated 27 MCA stents from 26 patients who ...

ABSTRACT: INTRODUCTION: Ultrasound measurements of brachial artery reactivity in response to stagnant ischemia provide estimates of microvascular function and conduit artery endothelial function. We hypothesized that brachial artery reactivity would independently predict severe sepsis and severe sepsis mortality. METHODS: This was a combined case-control and prospective cohort study. We measured ...

BACKGROUND: Microvascular decompression (MVD) of trigeminal neuralgia (TN) or hemifacial spasm (HFS) caused by an elongated, tortuous or enlarged vertebral or basilar artery has a higher rate of incomplete cure. OBJECTIVE: We used an easily applied and adjustable method of vertebrobasilar artery transposition and fixation to improve the immediate surgical ...

Phagocytic NADH/NADPH oxidase is an important enzyme producing reactive oxygen species within subendothelial space of vessels. Findings have shown that p22phox subunit is an essential element related to the enzyme activity. Since some p22phox polymorphisms are thought to have functional roles in the enzyme thus, we studied the association between ...

OBJECTIVES: A strong degree of co-existence between coronary artery disease (CAD) and abdominal aortic aneurysm (AAA) is widely acknowledged, however, it remains to be elucidated whether the existence of CAD is associated with an accelerated expansion rate of AAA. Also, the relationship between preoperative CAD and postoperative major adverse cardiovascular ...

Oesophageal carcinoma remains one of the most common forms of cancer. Resection in the form of oesophagectomy and gastric interposition remains the standard surgical treatment and is associated with a high rate of post-operative morbidity. We report a case of a 71-year old male who underwent successful Ivor-Lewis oesophageal resection ...

BACKGROUND: Intraoperative transesophageal echocardiographic visualization of the vascular anastomosis of lung grafts can be difficult. The goal of this prospective study was to compare intraoperative transesophageal echocardiography and contact ultrasound. METHODS: Vessel imaging and Doppler analysis obtained before chest closure by both techniques were compared in 18 bilateral lung transplant ...

Traumatic cervical spondyloptosis is a rare clinical entity typically associated with complete neurological deficit. The inherent mechanics of this fracture-dislocation pattern contorts the vertebral arteries in such a way that it may result in dissection or compromised flow through those vessels. Thus, intimal injury or thrombus from stasis of flow ...

The authors report the rare case of a 58-year-old man with segmental arterial mediolysis (SAM) with associated intracranial and intraabdominal aneurysms, who suffered subarachnoid hemorrhage (SAH) due to rupture of an intracranial aneurysm. This disease primarily involves the intraabdominal arterial system, resulting in intraabdominal and retroperitoneal hemorrhage in most cases. ...

Aortic valve reimplantation has been shown to be a safe procedure. However, evidences of durability in bicuspid aortic valves (BAVs) are limited in the literature. Between 2002 and 2011, 132 patients (mean age 61 ± 12 years) underwent aortic valve reimplantation. In 24 patients (18%), aortic valve was bicuspid. Mean follow-up was ...

Background: One out of 5 patients undergoing coronary angiography has angiographically normal coronary arteries (ANCA). Some of them have abnormally slow coronary flow (SCF). The prevalence and causes of SCF in these patients are not clear. Methods: We studied 114 consecutive patients with ANCA. Each angiogram was independently evaluated by ...

The aim of this work is to develop a new hyperelastic and anisotropic material mimicking histological and mechanical features of healthy and aneurysmal arterial tissues. The material is constituted by rhombic periodic lattices of hyperelastic fibres embedded into a soft elastomer membrane. To fit bi-axial experimental data obtained from the ...

Approximately 6 million patients present to the emergency department each year for evaluation of chest pain, and 70% of chest pain presentations are noncardiac in origin. This systematic review article compares noninvasive tests (coronary computed tomography angiography and coronary calcium scoring) to determine the predictive value to detect coronary artery ...

OBJECTIVES Recent studies have linked abnormal aortic medial pathology to progressive aortic root dilatation in patients with tetralogy of Fallot (TOF). To explore whether the aortic medial pathology in TOF is linked to aortic mechanical property, the present study tested the hypothesis that the distribution of impaired aortic elasticity corresponds ...

Doppler analysis of the umbilical and uterine arteries has long been performed in perinatal medicine to assess fetal health and maternal risk for preeclampsia. Several other vessels can be interrogated to obtain additional, vital information. Velocimetry in the fetal middle cerebral artery can yield evidence of the presence or absence ...

A 33-day-old neonate with transposition of the great arteries, ventricular septal defect, and intramural course of both coronary arteries underwent successful arterial switch repair. At a follow-up time of 36 months, left ventricular function and coronary arterial anatomy at angiography were normal. Optimal treatment of such rare coronary arterial abnormality ...

Patients who have undergone the elephant trunk procedure because of aortic dissection may subsequently present with a descending aortic aneurysm. We describe the technique of "endograft aortic control by inflating a compliant aortic occlusion balloon," in which a balloon is placed in the proximal descending aortic graft without cross-clamping to ...

A 68-year-old man was referred for severe aortic regurgitation 10 years after aortic root replacement with a valved conduit containing a stented bioprosthesis that had been sutured inside of the vascular tube graft, rather than at its extremity. Because of this simple modification of the Bentall concept, replacing the prosthetic ...

Intramural left atrial dissection and hematoma as a complication of a coronary stenting procedure is a very rare entity. We report the case of a 73-year-old man who underwent percutaneous coronary angioplasty for a severe stenosis of the left circumflex coronary artery, complicated by a left atrial intramural hematoma, and ...

: To present the feasibility of using the Ascent balloon, a new double-lumen remodeling balloon, for a new 2-in-1 technique allowing coiling through the lumen of the balloon without the use of an additional coiling microcatheter. Remodeling technique had enlarged the indications for endovascular treatment of intracranial aneurysm. Nevertheless, one ...

The aim of the present study was to examine the superior sagittal sinus (SSS) and bridging veins (BVs) from an anatomical, neurosurgical and radiological perspective. Computed tomography venographies (CTVs) of 30 patients and 9 cadaveric dissections of human SSS were analyzed. CTV and cadavers showed most BVs emptying into the ...

A novel endovascular therapy to treat a pseudoaneurysm as a complication of molar tooth extraction is described. A 20-year-old man presented 2 weeks after third molar tooth extraction with an enlarging pulsatile jaw mass, identified as a facial artery pseudoaneurysm. Endovascular embolization with microcoils and a liquid embolic agent, Onyx, ...

: Vascular studies of the thumb have reported conflicting results; even the anatomical nomenclature differs between studies. The main purpose of this study was to describe the local patterns of thumb vascular anatomy. : The authors studied 30 fresh right hands from male and female cadavers using a vascular injection ...

Chronic thromboembolic pulmonary hypertension (CTEPH) is a debilitating disease caused by chronic obstruction of pulmonary artery branches following episodes of pulmonary embolism and incomplete thrombus resolution. The prognosis of patients with CTEPH is poor unless an early diagnosis is made and treatment is initiated. Chest radiography and echocardiography are used ...

Background The sphenoid sinus is a frequent target of paranasal sinus surgery. Because of the high risk of injuring the surrounding structures (e.g. internal carotid artery, optical nerve) a preoperative imaging is absolutely necessary. Purpose To analyze the possibilities of cone-beam computed tomography (CBCT), which is especially quite a new ...

Background The ideal bypass conduit in a right coronary artery (RCA) system remains controversial.Methods We analyzed 121 patients who underwent off-pump coronary artery bypass with internal thoracic arteries for the left coronary artery system and either in situ a right gastroepiploic artery (RGEA; n = 66) or a saphenous vein ...