Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Department of Anaesthesia and Intensive Care, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
J Cardiothorac Vasc Anesth. 2021 Dec;35(12):3730-3734. doi: 10.1053/j.jvca.2020.11.045. Epub 2020 Nov 27.
Ventricular septal defects (VSD) are the most common congenital cardiac defect. Patients with large VSDs present early due to an increase in the volume load on the left ventricle and pressure load on the right ventricle. Few of them present late even without surgical intervention, due to partial restriction of perimembranous (PM) VSD, either by the septal leaflet of the tricuspid valve or by aortic valve cusp prolapse into the VSD. The authors observed a novel structure (ie, subaortic membrane in this case) restricting the large PM VSD in a 15-year-old child.
室间隔缺损（VSD）是最常见的先天性心脏缺陷。由于左心室容量负荷增加和右心室压力负荷增加，大 VSD 患者会早期出现症状。即使没有手术干预，也有少数患者会出现晚期症状，这是由于膜周（PM）VSD 部分受限所致，可能是由三尖瓣隔瓣或主动脉瓣瓣叶突入 VSD 所致。作者观察到一种新的结构（即本例中的主动脉下膜）限制了大 PM VSD。
