Angioscopic evaluation of prolonged vs standard balloon inflations during coronary angioplasty

To study the immediate effects of prolonged total balloon inflation during PTCA, 41 patients (44 lesions) with chronic-stable angina were randomized for prolonged sequential inflations (three to five inflations of 3 to 5 min each, for a total duration of ≥ 12 min, group 1, n= θ20 lesions) or ‘standa...

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Published in:European heart journal 1995-07, Vol.16 (7), p.930-936
Main Authors: CRIBIER, A., JOLLY, N., ELTCHANINOFF, H., KONING, R., BAALA, B., KOTHARI, M., CHAN, C., LETAC, B.
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Language:English
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Angioscopy
coronary angioplasty
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container_end_page 936
container_issue 7
container_start_page 930
container_title European heart journal
container_volume 16
creator CRIBIER, A.
JOLLY, N.
ELTCHANINOFF, H.
KONING, R.
BAALA, B.
KOTHARI, M.
CHAN, C.
LETAC, B.
description To study the immediate effects of prolonged total balloon inflation during PTCA, 41 patients (44 lesions) with chronic-stable angina were randomized for prolonged sequential inflations (three to five inflations of 3 to 5 min each, for a total duration of ≥ 12 min, group 1, n= θ20 lesions) or ‘standard’ sequential inflations (three to five inflations of ≤1 min each, for a total duration of ≤3 min, group 2, n-24 lesions). The mean duration of total balloon inflation time was 958 ± 129 s in group 1 vs 205 ±46 s in group 2. Results of angioplasty were assessed on both angiography and percutaneous transluminal coronary angioscopy performed immediately after the procedure. High quality imaging of the coronary lumen and lesion morphology was possible on angioscopy in all patients without any complications. Post-PTCA angiographic percent diameter stenosis was significantly less in group 1 compared to group 2: 26 ± 10% vs 36 ± 8% (P
doi_str_mv 10.1093/oxfordjournals.eurheartj.a061027
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The mean duration of total balloon inflation time was 958 ± 129 s in group 1 vs 205 ±46 s in group 2. Results of angioplasty were assessed on both angiography and percutaneous transluminal coronary angioscopy performed immediately after the procedure. High quality imaging of the coronary lumen and lesion morphology was possible on angioscopy in all patients without any complications. Post-PTCA angiographic percent diameter stenosis was significantly less in group 1 compared to group 2: 26 ± 10% vs 36 ± 8% (P&lt;0.05). On angioscopy, flaps were seen in 16 patients in group 2, but in only six in group 1 (P&lt;0.02). There was no difference in the incidence of thrombi on angioscopy between the two groups (group 1: nine cases, group 2: 10 cases). Sensitivity of angiographic detection of flaps and thrombi was poor: 10% and 12% respectively. One patient in each group developed a longitudinal dissection, detected on both angiography and angioscopy. 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subjects Angioscopy
coronary angioplasty
title Angioscopic evaluation of prolonged vs standard balloon inflations during coronary angioplasty
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