1/235. Arterial imaging.angioscopy, magnetic resonance angiography, computed tomography, and nuclear medicine are assuming an increasingly important role in arterial imaging. This review discusses recent advances in these modalities. angioscopy has proven valuable in monitoring intraoperative surgical procedures as well as percutaneous interventions. Carotid artery magnetic resonance angiography is gaining increasing acceptance in clinical practice. magnetic resonance angiography of the peripheral arteries is limited by spatial resolution and signal loss distal to the stenosis. The role of computed tomography in limiting the number of aortograms performed in evaluating aortic laceration remains controversial; however, several recent papers indicate its usefulness in evaluating clinically stable patients with abnormal chest radiographs. Computed tomography of abdominal aortic aneurysms may obviate the need for preoperative aortography in the majority of cases. Nuclear imaging for deep venous thrombosis using 111In-labeled antifibrin monoclonal antibodies was shown highly sensitive in its initial report.- - - - - - - - - - ranking = 1keywords = artery (Clic here for more details about this article) |
2/235. Marked increase in flow velocities during deep expiration: A duplex Doppler sign of celiac artery compression syndrome.Symptoms of chronic mesenteric ischemia develop when the celiac artery is constricted by the median arcuate ligament of the diaphragm. Lateral aortography is the primary modality for diagnosing ligamentous compression of the celiac artery. However, duplex Doppler sonography performed during deep expiration can cause a marked increase in flow velocities at the compressed region of the celiac artery and suggest the diagnosis of celiac arterial constriction due to the diaphragmatic ligament.- - - - - - - - - - ranking = 7keywords = artery (Clic here for more details about this article) |
3/235. Respiratory distress due to tracheal compression by the dilated innominate artery.The case reported is of an 88 yr old female with hypertension and respiratory distress. A chest radiograph revealed a widening of the upper mediastinum. Computed tomographic scanning revealed tracheal compression by the innominate artery, which was elongated and curved. After intubation, she was treated with antihypertensive drugs. This resulted in the remarkable recovery of the patient from respiratory distress. To the authors' knowledge, this is the first reported case of respiratory distress owing to tracheal compression by elongation and curvature of the innominate artery.- - - - - - - - - - ranking = 6keywords = artery (Clic here for more details about this article) |
4/235. Arterial tortuosity syndrome.We describe a patient with arterial tortuosity syndrome (ATS), a rare disorder comprising generalized tortuosity and elongation of all major arteries, soft skin, joint laxity, severe keratoconus, and diffuse tortuosity of the carotids and of intracranial arteries. The patient's probably affected brother and sister died at an early age. Cytochemical studies excluded Ehlers-Danlos type IV and type VII syndromes. We review 11 previously described patients.- - - - - - - - - - ranking = 0.20718749450818keywords = carotid (Clic here for more details about this article) |
5/235. Bilateral radial artery pseudoaneurysms associated with bilateral ulnar artery atresia: a case report.Pseudoaneurysms of the radial artery are uncommon and most often localized in an area of penetrating vascular trauma or iatrogenic injury. Hypoplasia of the ulnar artery is even more rare. We report a case of bilateral radial artery pseudoaneurysms associated with complete absence of any ulnar contribution to the vascularity of the hand. A patient presented with bilateral tender masses adjacent to the anatomic snuff boxes that interfered with hand function. After confirming that these masses were bilateral radial artery pseudoaneurysms, resection of the pseudoaneurysms and microscopic reconstruction of the arterial segments preserved vascular integrity of the hands and provided relief of the patient's pain.- - - - - - - - - - ranking = 12keywords = artery (Clic here for more details about this article) |
6/235. Malpositioned or dislocated aortic endoprostheses: repositioning using percutaneous pull-down maneuvers.PURPOSE: To present the capabilities and potential complications of 2 percutaneous techniques for repositioning malpositioned or dislodged aortic endografts. methods: Seven male patients (median age 67.9 years, range 59 to 78) required correction of misplaced or dislocated endografts in the thoracic (n = 1) or infrarenal abdominal aorta (n = 6). In 1 patient, an infrarenal bifurcated stent-graft was mistakenly deployed across a renal artery; repositioning was accomplished by tugging caudally on a guidewire placed across the endograft bifurcation and exteriorized from both femoral arteries. An inflated balloon catheter was used to reposition 3 dislocated aortic devices (1 thoracic, 2 infrarenal) and 3 iliac graft limbs that had disconnected from the main graft body 6 to 12 months after implantation. RESULTS: Repositioning maneuvers were successful in all cases, with the devices being moved from 5 to 27 mm (median 7.8 mm). There were no procedure-related complications. CONCLUSIONS: Nonsurgical repositioning of misplaced aortic prostheses is technically feasible in individual cases. The risk associated with the procedure, however, cannot yet be evaluated.- - - - - - - - - - ranking = 1keywords = artery (Clic here for more details about this article) |
7/235. Temporal artery biopsy in herpes zoster ophthalmicus with delayed arteritis.A 58-year-old man developed herpes zoster ophthalmicus with delayed hemiparesis. Temporal artery biopsy confirmed the presence of a vasculitis. Electron microscopy of the temporal artery failed to reveal viral particles. herpes zoster ophthalmicus with delayed arteritis appeared to be a contiguous spread of vasculitis to the carotid system and not a direct viral invasion.- - - - - - - - - - ranking = 6.2071874945082keywords = artery, carotid (Clic here for more details about this article) |
8/235. Emergency stent-graft repair of a ruptured hepatic artery secondary to local postoperative peritonitis.PURPOSE: To describe the use of a stent-graft for emergent repair of life-threatening hepatic artery hemorrhage. methods AND RESULTS: A 57-year-old man with a 17-year history of myxoid liposarcoma underwent surgery for a recurrent abdominal mass. Multivisceral resection including a Kausch-Whipple procedure with an extended right hemicolectomy was performed. Three weeks later, an episode of gastrointestinal bleeding prompted surgical repair of the hepatic artery, which had been eroded by infection due to a leaking bilioenteric anastomosis. After 3 weeks of programmed abdominal lavage, bleeding recurred. Angiography documented another rupture of the proximal hepatic artery. After an unsuccessful attempt at coil embolization, a Hemobahn stent-graft was implanted percutaneously during simultaneous cardiopulmonary resuscitation. hemostasis was secured, and the patient recovered. Over the 10-month follow-up, no bleeding or infection has been observed at the site of the repair, and flow through the hepatic artery endograft remains satisfactory. CONCLUSIONS: Percutaneous stent-graft placement can be employed for emergent treatment of visceral artery rupture in patients at high risk for conventional surgical repair.- - - - - - - - - - ranking = 9keywords = artery (Clic here for more details about this article) |
9/235. Rotational compression of the vertebral artery at the point of dural penetration. Case report.vertebrobasilar insufficiency (VBI) due to vertebral artery (VA) compression occurs in a significant number of patients. Rotational compression of the VA usually occurs below C-2, where the artery is pinched during head rotation, leading to thrombus formation and subsequent cerebellar infarction. Although this problem has been reported to occur at the atlantooccipital levels, a review of the literature revealed no published cases of VA compression at the point of dural penetration, which is located above the atlantooccipital membrane. The authors report the case of a 30-year-old woman who presented with signs and symptoms of VBI. Dynamic angiography demonstrated left-sided VA compression at the site at which dural penetration had occurred, proximal to the posterior inferior cerebellar artery. Surgical decompression of the left VA at the point of dural penetration relieved the symptoms, and postoperative dynamic angiography demonstrated complete resolution of the positional compression of the left VA. Because of these findings, an additional possible location for rotational compression of the VA is described, namely, the point of dural penetration. The authors suggest a method of surgically treating rotational VA compression at this site.- - - - - - - - - - ranking = 7keywords = artery (Clic here for more details about this article) |
10/235. Transverse limb defects associated with aorto-pulmonary vascular abnormalities: vascular disruption sequence or atypical presentation of Adams-Oliver syndrome?We report a patient with terminal transverse limb defects associated with persistent primitive aorto-pulmonary vascular connections leading to supra-systemic pulmonary artery pressure. It is likely that this patient represents a vascular disruption sequence or as an alternative a form of Adams-Oliver syndrome. These assumptions are based only on the association of vascular abnormalities as an emerging and apparently important association with transverse limb defects despite the absence of aplasia cutis congenita commonly associated with Adams-Oliver syndrome.- - - - - - - - - - ranking = 1keywords = artery (Clic here for more details about this article) |
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