1/218. Vertebral arteriovenous fistula that developed in the same place as a previous ruptured aneurysm: a case report.BACKGROUND: Aneurysms of the extracranial vertebral artery (VA) and vertebral arteriovenous fistulas (VAVFs) are relatively rare diseases. The most frequent cause of both diseases is trauma. Atraumatic lesions are less common. Presented here is a case of atraumatic AVF of the extracranial VA that developed in the same location as a previous ruptured aneurysm of the ipsilateral VA that was originally treated by proximal occlusion 11 years earlier. methods: A 40-year-old woman presented with a massive hematoma in the upper posterior neck region caused by the rupture of an extracranial VA aneurysm. Proximal occlusion of the VA was performed by use of a detachable balloon. She enjoyed good health for 11 years, then she noticed a pulsatile bruit. Angiograms revealed an AVF between the left VA that was fed by collateral circulation and the paravertebral venous plexus. Incidentally found were soft tissue masses in the left retroauricular and the right suboccipital regions. Also, skull X-ray films showed multiple bony defects. biopsy of the subcutaneous mass was performed in the hope of obtaining clues as to which pathological processes had weakened the artery. RESULTS: As direct transarterial access to the fistula was out of the question, the fistulous compartment of the paravertebral venous plexus was tightly packed with multiple platinum coils effected by the transfemoral approach. A histological examination of the specimen revealed features of a neurofibroma, and a diagnosis of neurofibromatosis Type 1 was established. CONCLUSIONS: In this case, transvenous embolization of the VAVF was successfully performed. The fragility of the arterial wall, related to neurofibromatosis Type 1, was considered to contribute to the development of the aneurysm and AVF.- - - - - - - - - - ranking = 1keywords = circulation (Clic here for more details about this article) |
2/218. Atypical pulmonary artery sling with diffuse-type pulmonary arteriovenous fistula.The case of a cyanotic infant with a rare combination of atypical pulmonary artery sling, imperforate anus, absence of the left kidney, interruption of the inferior vena cava, left side hemihypertrophy and diffuse-type pulmonary arteriovenous fistula is described. The clinical features were confusing, because of compounding abnormalities involving the respiratory tract and pulmonary circulation. The diagnostic approach to the etiology of cyanosis is discussed and the embryonic origin of pulmonary artery sling is reviewed.- - - - - - - - - - ranking = 1keywords = circulation (Clic here for more details about this article) |
3/218. Therapeutic embolization for unusual latrogenic complications related to coronary revascularization.Percutaneous therapeutic embolization may be an effective strategy to manage distal coronary perforations or inadvertent iatrogenic coronary arteriovenous fistula complicating revascularization procedures. We present two cases in which embolization techniques were used to manage these patients and avoid the need for surgical intervention.- - - - - - - - - - ranking = 54.188268930229keywords = coronary (Clic here for more details about this article) |
4/218. exercise-induced ventricular tachycardia associated with coronary arteriovenous fistula and correction by transcatheter coil embolization.exercise-induced ventricular tachycardia is a well-described arrhythmia most commonly associated with atherosclerotic coronary artery disease. The case reported here presents its association with a coronary arteriovenous fistula, which has not been previously reported in the literature.- - - - - - - - - - ranking = 54.188268930229keywords = coronary (Clic here for more details about this article) |
5/218. Staphylococcal coronary arteritis as a complication of septicemia.We describe a case of staphylococcal coronary arteritis in the setting of sepsis due to arteriovenous fistula and dialysis catheter infection. The left circumflex coronary artery was the only vessel involved. The patient was a 77-year-old, insulin-dependent diabetic man with chronic renal failure. The immunosuppressed state in diabetes with subsequent septicemia may have facilitated a large number of bacteria to lodge in the atheromatous plaque of the coronary artery. We briefly review previously reported cases and suggest that bacterial arteritis may be an underrecognized cause of acute coronary occlusion.- - - - - - - - - - ranking = 72.251025240305keywords = coronary (Clic here for more details about this article) |
6/218. Catheter-based techniques for closure of coronary fistulae.This study details different methodologies of percutaneous closure of arteriosystemic and arteriovenous coronary fistula. Seven patients underwent transcatheter intervention of 10 fistulas, with 7 fistulas successfully closed: 6 with embolic coil devices and 1 with a covered stent obstructing the fistula ostium. The major complication encountered was one death as a result of device recoil into a major epicardial vessel. Percutaneous transcatheter closure of coronary fistulas appears to be simple, facile, and effective. However, device recoil into an undesired arterial segment, while irritating in a noncoronary arterial tree, may be catastrophic when occurring in an epicardial coronary artery.- - - - - - - - - - ranking = 72.251025240305keywords = coronary (Clic here for more details about this article) |
7/218. Treatment of a coronary artery to superior vena cava fistula resulting from early closure of a Possis Perma-Flow graft.The Perma-Flow graft used in bypass surgery achieves more complete revascularization when paucity of native conduits exists. We report a coronary artery to superior vena cava fistula as a complication of this graft, leading to severe right heart failure. The fistula was successfully occluded percutaneously, improving the patient's clinical situation.- - - - - - - - - - ranking = 45.156890775191keywords = coronary (Clic here for more details about this article) |
8/218. Hepatic vein to the azygous vein anastomosis for pulmonary arteriovenous fistulae.Pulmonary arteriovenous fistulae after a cavopulmonary anastomosis have been reported to resolve after hepatic venous return is included in the pulmonary circulation. We report a case in which the hepatic veins were redirected to the pulmonary circulation by connecting them directly to the azygous continuation of the inferior vena cava that had previously been connected to the right pulmonary artery. The patient's arterial saturation of 71% increased to 92% after 6 months.- - - - - - - - - - ranking = 2keywords = circulation (Clic here for more details about this article) |
9/218. Intracranial dural arteriovenous fistula (DAVF) presenting progressive dementia and parkinsonism.We studied three patients with dural arteriovenous fistula (DAVF). Major symptoms were progressive dementia and parkinsonism, both of which progressed in step-wise fashion. Two of the three patients showed diffuse cerebral white matter lesions on brain CT and MRI. Progressive dementia and parkinsonism in our patients could be caused by diffuse cerebral parenchymal disturbance: impaired cerebral circulation due to severe venous hypertension. DAVF is important for the differential diagnosis in patients with progressive dementia and parkinsonism.- - - - - - - - - - ranking = 1keywords = circulation (Clic here for more details about this article) |
10/218. Coronary arteriovenous fistulas with giant aneurysm: two case reports.Coronary arteriovenous fistulas are rare, particularly in association with coronary aneurysms. Two rare cases of patients with coronary arteriovenous fistulas and giant aneurysmal formation are described. A right coronary fistula that drained into the superior vena cava was demonstrated in one patient. The remaining patient had a documented left coronary fistula that drained into a main pulmonary artery and had evidence of several plexal vessels that transversed through the pulmonary trunk and toward the pericardial reflex. Under cardiopulmonary bypass, the fistulas and plexal vessels were successfully ligated without any injury to the native coronary circulation.- - - - - - - - - - ranking = 46.156890775191keywords = coronary, circulation (Clic here for more details about this article) |
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