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Esophagogastric malignancies often are manifested with progressive dysphagia or esophagorespiratory fistulas. Palliative modalities currently available have significant limitations. A modified Gianturco-Rösch silicone-covered self-expanding metallic Z stent was used in 32 consecutive patients with malignant esophageal obstruction (n = 24) or(More)
Myocardial infarction during aortic valve replacement has previously been reported to result from obstruction of a branch of the left main coronary artery by the perfusion cannula. Patients with a dominant left coronary arterial system may be at greater risk. To assess the frequency and significance of a dominant left coronary arterial system the coronary(More)
Coronary artery disease patients frequently have left ventricular wall motion abnormalities. Though nitroglycerin is commonly used in ischemic heart disease, its effects on wall motion abnormalities is unknown. In this study we have evaluated the effects of nitroglycerin on wall motion abnormalities and on ejection fraction in 25 patients. Sixteen had(More)
During the 13 years since its introduction into clinical practice, transjugular intrahepatic portosystemic shunt (TIPS) has become widely accepted worldwide as a percutaneous, interventional procedure for treating complications of portal hypertension. An experienced, skillful team, however, is necessary to ensure the high technical success of TIPS and to(More)
PURPOSE Over the past 30 years there have been experimental efforts at catheter-based management of aortic valve regurgitation with the idea of extending treatment to nonsurgical candidates. A new catheter-based aortic valve design is described. METHODS The new catheter-delivered valve consists of a stent-based valve cage with locking mechanism and a(More)
Abbreviations: AGIB ϭ acute gastrointestinal bleeding, PTA ϭ percutaneous transluminal angioplasty, SFA ϭ superficial femoral artery, SIR ϭ Society of In-terventional Radiology, SK ϭ streptokinase, TIPS ϭ transjugular intrahepatic portosystemic shunt THE Society of Interventional Radiology (SIR) celebrates its 30th anniversary this year. During these 30(More)
In order to determine the reproducibility of analyses of left ventriculograms, 35 cineangiograms were evaluated by four observers, two using standard quantitative techniques to determine ventricular volumes and a newly devised quantitative system to evaluate wall motion and two others using only visual inspection of the angiograms. Objective analysis(More)