A 36-year-old man who had aortic valve surgery 2 years earlier for severe aortic regurgitation, was referred for reassessment prior to dental surgery. We found no abnormalities except a right parasternal grade 3/6 end-systolic murmur. Transthoracic echocardiography in apical 4-chamber view revealed a right-sided membranous interventricular septal aneurysm (MIVSA) and a functional aortic valve prosthesis (maximum and mean gradients, 12 and 9 mm Hg, respectively). Systolic and diastolic bulging of the MIVSA was detected in the right ventricle (Figure 1).
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机译：一名2岁前因严重主动脉瓣关闭不全而进行主动脉瓣手术的36岁男子在牙科手术前被转诊接受重新评估。除右侧胸骨旁3/6级收缩末期杂音外，我们未发现任何异常。经胸腔四尖瓣超声心动图显示右侧膜性室间隔动脉瘤（MIVSA）和功能性主动脉瓣膜假体（最大和平均梯度分别为12和9 mm Hg）。在右心室中检测到MIVSA的收缩期和舒张期膨胀（图1）。
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