1/43. Pitfalls of undetected patent foramen ovale in off-pump cases.We describe pitfalls of a hitherto undetected patent foramen ovale during the conduct of an off-bypass coronary revascularization. Manipulation of the heart resulted in right-to-left shunt and severe desaturation requiring institution of cardiopulmonary bypass to close the patent foramen ovale and complete the revascularization.- - - - - - - - - - ranking = 1keywords = foramen ovale, patent foramen ovale, patent foramen, ovale, foramen, patent (Clic here for more details about this article) |
2/43. Aortic obstruction caused by device occlusion of patent arterial duct.A 2 year old girl is reported in whom deployment of the Amplatzer ductal occluder caused significant aortic obstruction, requiring surgical removal of the device. This case emphasises the need for careful echocardiographic and angiographic assessment of the position of the Amplatzer ductal occluder before and after detaching the device from its delivery system, with particular emphasis on the position of the aortic retention ring. Careful assessment of ductal anatomy must guide case selection.- - - - - - - - - - ranking = 0.026449726606019keywords = patent (Clic here for more details about this article) |
3/43. Immediate postoperative thrombolytic therapy: an aggressive strategy for neurologic salvage when cerebral thromboembolism complicates carotid endarterectomy.A 42-year-old man with a high-grade left internal carotid artery (ICA) stenosis demonstrated on a duplex scan was referred to us. A cerebral arteriogram confirmed a greater than 90% left internal carotid stenosis, but with the unexpected finding of a moderate amount of thrombus in the proximal ICA. He underwent emergent left carotid endarterectomy, but during the operation, only a small amount of thrombus was identified as adherent to the atherosclerotic plaque. he awakened in the operating room with a dense right hemiplegia and aphasia. Immediate reexploration demonstrated a patent endarterectomy site, a distal thromboembolectomy was performed without extraction of thrombus, and urokinase (250,000 Units) was infused into the distal ICA. He reawakened with an unchanged right hemiplegia and aphasia. The patient then underwent an urgent postoperative carotid and cerebral arteriogram that demonstrated an embolus to the middle cerebral artery. he was treated with the superselective infusion of urokinase (500,000 Units), with almost complete resolution of the clot. Over the course of the next 48 hours, the patient made a nearly complete neurologic recovery, and he was discharged from the hospital with only a slight facial droop. At 2 months' follow-up he was completely neurologically healthy. To our knowledge this is the first reported case of urokinase administered in the immediate postoperative period in the angiography suite to treat a thromboembolus complicating a carotid endarterectomy.- - - - - - - - - - ranking = 0.0066124316515049keywords = patent (Clic here for more details about this article) |
4/43. Percutaneous stenting of an latrogenic superior mesenteric artery dissection complicating suprarenal aortic aneurysm repair.PURPOSE: To report endovascular repair of an iatrogenic superior mesenteric artery (SMA) dissection caused by a balloon occlusion catheter. CASE REPORT: A 68-year-old man with a suprarenal aortic aneurysm underwent conventional prosthetic replacement, during which visceral artery back bleeding was controlled with balloon occlusion catheters. Six hours postoperatively, the patient experienced an episode of bloody diarrhea with abdominal pain and tenderness and mild metabolic acidosis. colonoscopy revealed colitis (grade I) without necrosis of the right and left colon. An emergent abdominal computed tomographic scan showed signs of mesenteric ischemia with bowel dilatation and SMA wall hematoma; angiography identified a dissection 1 cm distal to the SMA origin. An Easy Wallstent was deployed percutaneously, successfully reestablishing SMA patency. The postoperative course was uneventful, and the patient remains asymptomatic with a patent SMA stent and aortic graft at 1 year. CONCLUSIONS: latrogenic SMA dissection should be suspected after suprarenal aortic aneurysm repair if signs of mesenteric ischemia arise. Prompt and thorough imaging studies are necessary to confirm the diagnosis and assess the potential for an endoluminal treatment.- - - - - - - - - - ranking = 0.0066124316515049keywords = patent (Clic here for more details about this article) |
5/43. Monocular blindness as a complication of trigeminal radiofrequency rhizotomy.PURPOSE: To raise the awareness of the rare complication of monocular blindness resulting from radiofrequency rhizotomy for trigeminal neuralgia. methods: Case series from tertiary referral centers. patients were referred after complaint of loss of vision. RESULTS: We report three patients who had trigeminal neuralgia and underwent treatment by radiofrequency rhizotomy. Each developed complete loss of vision in one eye immediately after the procedure. One patient died of an unrelated cause, and pathologic analysis revealed changes compatible with acute trauma to the right optic nerve. CONCLUSION: Our third case confirms the hypothesis that traumatic optic neuropathy after trigeminal radiofrequency rhizotomy results from malpositioning of the rhizotomy needle through the inferior orbital fissure into the orbital apex rather than the foramen ovale.- - - - - - - - - - ranking = 0.076141933481312keywords = foramen ovale, ovale, foramen (Clic here for more details about this article) |
6/43. Replacement of the left common iliac vein with a custom-made bovine pericardium tubular graft.To date, venous reconstruction has not been as successful as arterial reconstruction. Prosthetic materials used as venous substitutes produce much lower patency rates with a higher incidence of early thrombosis than those used as arterial substitutes. We describe the case of a 38-year-old obese woman in whom we encountered an unexpected tear of the common iliac vein intraoperatively, during an anterior approach to the lumbar spine. Because of limited options, we replaced the vein with an interposition tubulargraft that was custom-made from bovine pericardium. Two years later, the patient remained asymptomatic with a patent graft. To our knowledge, there has been no other reported case in the world medical literature of replacement of medium-sized veins by this technique.- - - - - - - - - - ranking = 0.0066124316515049keywords = patent (Clic here for more details about this article) |
7/43. Fatal paradoxic embolism occurring during IVC filter insertion in a patient with chronic pulmonary thromboembolic disease.A patient diagnosed with chronic thromboembolic disease experienced a fatal intraprocedural paradoxic embolism during inferior vena cava (IVC) filter insertion. The frequency of patent intra-atrial shunts in patients with chronic thromboembolic disease is surprisingly high, occurring in approximately 29.5% of patients with chronic thromboembolic disease. Prevention of embolic events during venous interventions in such cases requires that the operator recognize that central shunts may be present and strictly adhere to meticulous technique during IVC filter insertion.- - - - - - - - - - ranking = 0.0066124316515049keywords = patent (Clic here for more details about this article) |
8/43. Persistence of the eustachian valve in secundum atrial septal defects: possible implications for cerebral embolism and transcatheter closure procedures.Transcatheter closure of large secundum atrial septal defects is now accepted clinical practice. With the introduction of easily applicable closure devices the indications for this procedure have been expanded to include the closure of patent foramen ovale after cerebral stroke of unknown origin. In some of these patients a persistent eustachian valve is present. The clinical relevance of this finding is still unclear. A 36 year old patient with a brainstem stroke of unknown origin and a secundum atrial septal defect in combination with a persisting prominent eustachian valve is reported. The potential role of the eustachian valve in the genesis of the stroke and the difficulties during transcatheter closure of the defect because of the persisting valve are discussed.- - - - - - - - - - ranking = 0.16666666666667keywords = foramen ovale, patent foramen ovale, patent foramen, ovale, foramen, patent (Clic here for more details about this article) |
9/43. Vagal schwannoma of the cerebello-medullary cistern presenting with hoarseness and intractable tinnitus: a rare case of intra-operative bradycardia and cardiac asystole.Schwannomas arising from the lower cranial nerves (IX-XI) are rare, constituting only 3% of all intracranial schwannomas unassociated with neurofibromatosis. A great majority of these tumours present as jugular foramen lesions and less commonly they occur along the extracranial course of these nerves. An intracisternal location is extremely rare. We report a case of vagal schwannoma purely in the cerebello-medullary cistern causing distortion of the medulla oblongata. Total microsurgical excision of this tumor, arising from one of the rootlets of the vagus nerve, was achieved with preservation of the 9th, 10th and 11th cranial nerves.The intraoperative course was complicated by two episodes of complete cardiac asystole, each lasting for 4(s), and six episodes of severe bradycardia. The patient was relieved of his intractable tinnitus but continued to have a hoarse voice due to an ipsilateral partial vocal cord palsy.- - - - - - - - - - ranking = 0.0077160206579125keywords = foramen (Clic here for more details about this article) |
10/43. Persistent redundant Eustachian valve interfering with Amplatzer PFO occluder placement: anatomico-clinical and technical implications.A 28-year-old man with patent foramen ovale and a prominent Eustachian valve with a history of transient ischemic attack underwent transcatheter closure using Amplatzer patent foramen ovale occluder. During deployment, some of the prominent valve tissue was entrapped on the delivery cable and a piece of the valve was extracted unintentionally. Anatomico-clinical and technical implications are discussed.- - - - - - - - - - ranking = 0.33333333333333keywords = foramen ovale, patent foramen ovale, patent foramen, ovale, foramen, patent (Clic here for more details about this article) |
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