Browsing by Author "RAO, VR"

Now showing 1 - 3 of 3
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    EMBOLIZATION OF LARGE SACCULAR ANEURYSMS WITH GIANTURCO COILS
    (RADIOLOGY, 1990) RAO, VR; MANDALAM, RK; JOSEPH, S; SATIJA, V; GUPTA, VK; GUPTA, AK; JAIN, SK; UNNI, MN; RAO, AS
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    PERCUTANEOUS TRANSLUMINAL ANGIOPLASTY OF THE SUBCLAVIAN ARTERY IN NONSPECIFIC AORTOARTERITIS - RESULTS OF LONG-TERM FOLLOW-UP
    (JOURNAL OF VASCULAR AND INTERVENTIONAL RADIOLOGY, 1994)
    PURPOSE: The results of percutaneous transluminal angioplasty (PTA) of the subclavian artery in nonspecific aortoarteritis (Takayasu disease) are analyzed.PATIENTS AND METHODS: Twenty-four patients (15 men, nine women; age range, 18-47 years; mean, 37.1 years) with occlusive disease in 26 subclavian arteries, had symptoms due to vertebrobasilar insufficiency, upper limb claudication, or both. Aortography revealed stenosis in 19 arteries and occlusion in seven. The lesions were focal in 14 arteries (< 3 cm) and extensive in 12. Associated lesions involved the brachiocephalic artery in three patients, carotid arteries in five patients, and renal arteries in five patients.RESULTS: Initial technical and clinical success was achieved in 21 of 26 arteries (81%, 17 of 19 stenoses and four of seven occlusions). The maximum follow-up was 82 months (mean, 26 months), during which time restenosis occurred in six arteries, all of which had extensive lesions. The cumulative primary, secondary, and overall patencies were 64%, 82%, and 65%, respectively, as analyzed by means of the life-table method. The cumulative patencies for short- and long-segment lesions were 100% and 50%, respectively (P = .0113). Minor complications were observed in four of 26 procedures (15%) and included vasospasm (three patients) and transient loss of consciousness (one patient). There were no major complications.CONCLUSIONS: PTA is useful for treatment of occlusive disease of the subclavian artery in nonspecific aortoarteritis. The procedure is simple and associated with minimal morbidity. Long-term results are excellent in focal lesions but are less durable in the presence of more extensive disease.
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    TAKAYASU ARTERITIS - INITIAL AND LONG-TERM FOLLOW-UP IN 16 PATIENTS AFTER PERCUTANEOUS TRANSLUMINAL ANGIOPLASTY OF THE DESCENDING THORACIC AND ABDOMINAL-AORTA
    (RADIOLOGY, 1993)
    PURPOSE: To analyze results of percutaneous transluminal angioplasty (PTA) for stenosis of the descending thoracic and/or abdominal aorta caused by Takayasu arteritis (TA).MATERIALS AND METHODS: Subjects were 16 patients (12 female and four male, aged 6-46 years) with symptoms of hypertension or severe bilateral lower limb claudication. Total aortography revealed stenotic lesions in the descending thoracic aorta in five, in the abdominal aorta in 10, and in both vessels in one patient. Involvement of arch vessels in four patients and of the renal artery in four patients was also noted. Double-balloon angioplasty was performed in eight patients.RESULTS: Initial technical and clinical success was 100%. The maximum follow-up period was 52 months (mean, 21 months 2 weeks). Ankle-brachial index as determined with Doppler ultrasound improved considerably in 10 patients. Three patients had symptoms of restenosis during follow-up. Cumulative patency rate by life-table analysis was 67%.CONCLUSION: PTA has a definite role in the management of TA in view of its procedural simplicity, cost-effectiveness, and results compared with surgical revascularization procedures.