Reliability of radioactive microspheres in regional blood flow measurements.
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Biomedical subjects
Publications and source records attributed to R Suy.
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Percutaneous transluminal atherectomy with the Simpson atherectomy catheter was performed in 10 patients with 14 severe atheromatous stenoses of the femoropopliteal arteries. Removal of plaque material with restoration of vessel patency was successful in all patients without complication. Further clinical follow-up will have to determine whether the recurrence rate of stenoses will be lower with this method than with conventional balloon angioplasty.
Percutaneous transluminal renal angioplasty was performed in 202 patients with 250 stenoses. The procedure was successful in 201 of 250 (83%). Results were better for postostial atherosclerotic lesions (94%), fibromuscular lesions (83%), and transplant kidneys (71%) than for ostial atherosclerotic lesions (29%). Of all the patients, 61% had reduced blood pressures following the procedure, with cure (diastolic blood pressure less than or equal to 90 mm Hg) in 31% of the patients. Cure rate with a mean follow-up of 25.8 +/- 19.4 months was 21% in bilateral atheromatous lesions, 30% in unilateral atheromatosis, 65% in unilateral fibromuscular disease, and 40% in bilateral fibromuscular dysplasia. Of the transplanted patients, 60% were cured. Complications occurred in 23 (11%) of the patients. Recurrence of stenoses occurred in 16 lesions (8%), 80% within the first year after the procedure.
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A patient with a paraprosthetic-sigmoid fistula following complicated aortic abdominal surgery is reported. Computed tomography confirmed the diagnosis by demonstrating inflammatory tissue around the left limb of the prosthesis in close contact with the sigmoid.
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