External iliac venous aneurysm treated with tangential aneurysmatectomy and lateral venorrhaphy: a case report and review of the literature.

Venous aneurysms of the femoro-iliac axis are uncommon abnormalities of the vascular system with a potentially life-threatening course; they can be associated with the disastrous events of thromboembolism or rupture. Therefore, a focused imaging evaluation and prophylactic treatment is essential. The appropriate surgical approach is, however, dictated by the morphological parameters and the extent of the aneurysm.

Abdominal aortic aneurysm with ectopic renal artery origins: a case report.

The coexistense of an abdominal aortic aneurysm with ectopic main renal vasculature complicates aortic surgery and mandates a focused imaging evaluation and a carefully planned operation to minimize renal ischemia. We present the case of a 75-year-old man with an abdominal aortic aneurysm and a right kidney with two ectopic main renal arteries, one originating from the aneurysmal distal aorta and the other from the right common iliac artery; the patient underwent a surgical repair and followed an uneventful course with no deterioration of renal function. The preoperative and intraoperative details are reported, along with a review of the literature.

Transdiaphragmatic approach facilitates resection of large (>12 cm) liver tumors.

Background/purpose: Various (mostly transthoracic) techniques have been proposed to facilitate access to large tumors located in the upper part of the liver, close to the confluence of the major hepatic veins. The purpose of this study was to investigate the safety and efficacy of a transdiaphragmatic mobilization technique for resection of such tumors.

Methods: Twenty-one patients, with tumors ranging from 12 to 22 cm in diameter, underwent liver resections using our technique of diaphragmatic splitting, with the intention of achieving adequate exposure of the inferior vena cava and the hepatocaval junction.

Ischemic preconditioning versus intermittent vascular occlusion in liver resections performed under selective vascular exclusion: a prospective randomized study.

Background: The aim of this study was to compare ischemic preconditioning with the intermittent vascular occlusion technique in liver resections performed under inflow and outflow occlusion.

Methods: Fifty-four patients with resectable liver tumors assigned were randomly to undergo surgery with either ischemic preconditioning (IP group, n = 27) or with intermittent vascular occlusion (IVO group, n = 27). Both groups were compared regarding surgical parameters, aspartate transaminase levels, and apoptosis.

Ischemic preconditioning versus intermittent vascular inflow control during major liver resection in pigs.

Ischemic preconditioning (IPC) and intermittent vascular control (IVC) have been shown to reduce the number of ischemia/reperfusion injuries during liver resections with the Pringle maneuver. Our study aimed to compare the beneficial effect of these two modalities in relation to the duration of normothermic liver ischemia. A group of 24 Landrace pigs with a mean body weight of 25 to 30 kg were subjected to extended liver resection of more than 65%.

Renal-portal shunt ameliorates renovascular hypertension in pigs.

Background: Renovascular hypertension is the most common curable form of secondary hypertension. Renin angiotensin system activation depends on the balance between renin production by the kidney and renin degradation by the liver. Thus, we aimed to examine whether deviation of renin-rich blood from the affected kidney into the portal circulation (portalization) can ameliorate renovascular hypertension.

Screening for abdominal aortic aneurysms during routine lumbar CT scan: modification of the standard technique.

Introduction: Abdominal aortic aneurysms (AAAs) are often incidental findings in patients undergoing US, CT or MRI studies. The recommended field of view (FOV) for standard CT examinations of the spine is 14 cm. This FOV does not allow full visualization of the abdominal aorta.

Experimental surgery in infrarenal aorta and sigmoid ischemia.

Aim: Colon ischemia is a rare but serious complication in surgery of the infrarenal aorta, due to ligation of the inferior mesenteric artery and the ischemia-reperfusion syndrome. In order to investigate the degree of intestinal damage, we employed experimental surgery in pigs, applying the usual protocol for elective repair of the infrarenal aorta (AAA or Y graft).

Methods: Three groups of pigs were operated on.

Abdominal aortic aneurysm and renal artery stenosis: renal function and blood pressure before and after endovascular treatment.

We describe three patients with abdominal aortic aneurysm (AAA) and renal artery stenosis (RAS). These patients were treated by placement of an aortic endograft and angioplasty or stenting of the renal artery. After the procedure renal function improved or remained stable in two patients and deteriorated slightly in one.

Oxygen free radicals in abdominal aortic surgery. An experimental study.

Background: In aortic reconstruction, intestinal and muscular ischaemia in the lower limbs occurs during cross-clamping of the aorta. After restoration of blood flow, reactive oxygen intermediates may lead to systemic injury to local or remote organs. In this study we investigated the usefulness of a shunt and vitamin E administration against the oxidant load generated in ischaemia-reperfusion phases.

Renal artery stenting for renal insufficiency in solitary kidney in 26 patients.

Objective: to present our experience with stent placement in renal arteries in solitary kidneys for treating renal insufficiency.

Design: retrospective analysis.

Materials: in 26 patients with solitary kidney (17 men, 9 women, mean age: 63 years), presented with renal insufficiency (se-creat >0.

The significance of Chlamydia pneumoniae in symptomatic carotid stenosis.

An association between symptomatic carotid stenosis and recent infection with Chlamydia pneumoniae is reported. Thirty-five patients (20 symptomatic and 15 asymptomatic) with carotid stenosis of 70% to 90% underwent carotid endarterectomy. Endarterectomy was performed without patch and shunt; the average occlusion time of the internal carotid artery was 14 +/- 3 min.

Therapeutic tactics and late results in predominant truncal congenital malformation.

Background: Congenital vascular malformations are rare vascular lesions of unknown etiology, non-degenerative or of inflammatory nature, which begin during embryological development; they are characterized by anomalies of the vascular system, apparently due to hemodynamic and metabolic disturbances.

Methods: Our diagnostic and therapeutic management in addition to the late results in 60, mainly truncal cases, out of 265 congenital vascular malformations, are analyzed in the present study. In a 20-year period 25,000 vascular examinations were carried out, among which 265 (1.