title: The influence of balloon inflation duration on the acute angiographic result of percutaneous transluminal coronary angioplasty.
abstract: This study was performed to evaluate the importance of the duration of balloon inflation during PTCA, by comparing two common inflation durations.  Patients were randomized to a 30-second inflation protocol (group I, 83 procedures, 109 lesions), or a 60-second protocol (group II, 83 procedures, 115 lesions).  There were no differences in baseline characteristics between the two groups, and no subsequent differences in mean inflation number (3.4 +/- 1.6 vs 3.1 +/- 1.6), residual stenosis (34% +/- 17% vs 33% +/- 16%), presence of dissection (29% vs 34%), or clinical success (89% vs 84%), group I versus group II, respectively.  The 30-second inflations caused significantly less chest pain score (147 +/- 239 vs 399 +/- 516, P less than 0.001), and ST segment alteration (75 +/- 94 seconds vs 136 +/- 163, P less than 0.05). These results indicate that 60-second inflations do not produce a superior result to 30-second inflations.  Furthermore, shorter inflations are much better tolerated.
authors.affiliation: Division of Cardiovascular Disease, University of Alabama at Birmingham 35294.
authors.forename: P J
authors.initials: PJ
authors.lastname: Garrahy
authors.forename: L S
authors.initials: LS
authors.lastname: Dean
authors.forename: T M
authors.initials: TM
authors.lastname: Bulle
authors.forename: J C
authors.initials: JC
authors.lastname: Anderson
authors.forename: W A
authors.initials: WA
authors.lastname: Baxley
authors.forename: H
authors.initials: H
authors.lastname: Nath
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects / Q000379:methods*; D017023:Coronary Angiography / Q000379:methods; D003327:Coronary Disease / Q000628:therapy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction; D011292:Premedication; D013997:Time Factors; D016896:Treatment Outcome