Galiuto L, O'Leary P W, Seward J B
Section of Pediatric Cardiology, Mayo Clinic, Rochester, MN 55905, USA.
J Am Soc Echocardiogr. 1996 May-Jun;9(3):300-5. doi: 10.1016/s0894-7317(96)90144-3.
Double-chambered right ventricle is an uncommon congenital heart disease, studied mostly by angiography, characterized by the division of the right ventricular cavity into two different pressure chambers. To analyze the anatomic features of this disease, data from 13 patients examined by echocardiography at the Mayo Clinic were reviewed. Despite the anatomic variety of this abnormality, two main types were identified. In the first type, intraventricular obstruction was due to an anomalous muscle bundle crossing the right ventricular cavity from the interventricular septum to the parietal wall. In the second type, no anomalous bundles were identified, and interventricular obstruction was due to marked parietal and septal hypertrophy. The main interventricular gradient was higher in the first type, and a ventricular septal defect was found to be associated more commonly with the second type.
双腔右心室是一种罕见的先天性心脏病，主要通过血管造影进行研究，其特征是右心室腔被分为两个不同压力的腔室。为分析该疾病的解剖特征，回顾了梅奥诊所13例经超声心动图检查患者的数据。尽管这种异常存在解剖学差异，但仍可分为两种主要类型。在第一种类型中，心室内梗阻是由于一条异常肌束从室间隔穿过右心室腔至室壁。在第二种类型中，未发现异常肌束，心室内梗阻是由于显著的室壁和室间隔肥厚。第一种类型的主要心室间压差更高，且室间隔缺损在第二种类型中更常见。
