کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2986956 1578699 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A randomized comparison of the Cryolife O’Brien and Toronto stentless replacement aortic valves
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی کاردیولوژی و پزشکی قلب و عروق
پیش نمایش صفحه اول مقاله
A randomized comparison of the Cryolife O’Brien and Toronto stentless replacement aortic valves
چکیده انگلیسی

ObjectiveA composite stentless valve might be less obstructive than a preparation incorporating the porcine right coronary muscle bar. The aim of this study was to compare early hemodynamic function in a prospective series of 78 patients randomized to receive either a Toronto or Cryolife O’Brien stentless valve.MethodsEchocardiography was performed early after surgery, between 3 and 6 months, and at 1 year after surgery.ResultsThe groups were matched demographically. The Cryolife O’Brien valve was significantly less obstructive in terms of effective orifice area (1.81 vs 1.30 cm2; P < .0001), mean pressure difference (7.1 vs 11.7 mm Hg; P < .0001), and peak velocity (1.7 vs 2.2 m/s) assessed at 1 year (P = .001). Bypass time was 91 (SD 22) minutes for the Cryolife O’Brien compared with 125 (SD 22) minutes (P < .0001) for the Toronto. There was a higher incidence of paraprosthetic regurgitation in the Cryolife O’Brien valve (16.7% vs 3.2%). Mortality and clinical events were similar.ConclusionThe composite valve was less obstructive than the porcine valve, suggesting that stentless valves cannot be considered as a homogeneous class.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Thoracic and Cardiovascular Surgery - Volume 133, Issue 4, April 2007, Pages 1045–1050
نویسندگان
, , , , ,