Hurwitz R A, Caldwell R L, Girod D A, Mahony L, Brown J, King H
Am Heart J. 1985 Sep;110(3):600-5. doi: 10.1016/0002-8703(85)90081-x.
Right ventricular ejection fraction and tricuspid regurgitation were estimated by radionuclide angiocardiography to quantitate systemic ventricular function in "simple" transposition of the great arteries. Mean right ventricular ejection fraction was 0.52 +/- 0.07 for 18 pre Mustard operation infants, 0.54 +/- 0.07 for 23 patients operated upon less than a 1 year before, and 0.57 +/- 0.08 for 14 patients operated upon more than 3 years earlier. Eight patients were evaluated before and following the Mustard operation; ejection fraction rose in three, fell in three, and remained constant in two. Mean right ventricular ejection fraction was not different between groups nor when compared to our "normal." The left ventricle:right ventricle stroke volume ratio of the postoperative patients was compatible with tricuspid regurgitation in four patients. This radionuclide study suggests that following surgery for transposition of the great arteries: mean right ventricular systolic ejection fraction remains at levels consistent with values usually found for the "normal" right ventricle; group right ventricular function does not deteriorate in the years following surgery; and tricuspid regurgitation may be detected in the early postoperative years.
通过放射性核素心血管造影术评估右心室射血分数和三尖瓣反流，以量化“单纯”大动脉转位患者的体循环心室功能。18例Mustard手术前婴儿的平均右心室射血分数为0.52±0.07，23例在手术前不到1年接受手术的患者为0.54±0.07，14例在3年多以前接受手术的患者为0.57±0.08。8例患者在Mustard手术前后接受了评估；射血分数3例升高，3例下降，2例保持不变。各组之间以及与我们的“正常”组相比，平均右心室射血分数没有差异。术后患者的左心室与右心室搏出量之比与4例患者的三尖瓣反流情况相符。这项放射性核素研究表明，大动脉转位手术后：平均右心室收缩射血分数保持在与通常在“正常”右心室中发现的值一致的水平；术后数年各组右心室功能没有恶化；术后早期可能检测到三尖瓣反流。
