柴田 三千夫, 松永 至, 麦倉 素行, 佐野 隆顕, 北沢 信治, 鈴木 博也, 石井 俊彦, 渡辺 隆之, 山本 有機, 今泉 満, 栗原 征士, 野原 義次

Michio SHIBATA, Itaru MATSUNAGA, Motoyuki MUGIKURA, Takaaki SANO, Shinji KITAZAWA, Hiroya SUZUKI, Toshihiko ISHII, Takayuki WATANABE, Ariki YAMAMOTO, Mitsuru IMAIZUMI, Masashi KURIHARA, Yoshitsugu NOHARA

東京医科大学内科第二講座

Department of Internal Medicine, Tokyo Medical College

キーワード : contrast echocardiography, dye dilution method, ventricular septal defect, right to left ventricular shunt

In the case of ventricular septal defect combined with atrial septal defect, in spite of the absence of pulmonary hypertension, right to left ventricular shunt was recognized.
The shunt was demonstrated by cardiac catheterization, dye dilution method and contrast echocardiography. Judging from the right ventricular and left ventricular pressure recorded in cardiac catheterization, the right to left ventricular shunt is considered mainly due to the pressure gradient between right and left ventricle in some phase of isometric relaxation period.