Transesophageal Color Doppler Flow Mapping of Iatrogenic Left‐to‐Right Interatrial Shunting After Percutaneous Transluminal Mitral Valvotomy

CHEN‐HUAN ‐H CHEN*, SHOA‐LIN ‐L LIN, WEI‐HSIAN ‐H YIN, JER‐YOUNG ‐Y LIOU, TSUI‐LIEH ‐L HSU, CHIH‐TAI ‐T TING, MAU‐SONG ‐S CHANG, BENJAMIN N. CHIANG

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研究成果: Article同行評審

2 引文 斯高帕斯(Scopus)

摘要

Characteristics of transesophageal color Doppler flow mapping of iatrogenic left‐to‐right interatrial shunts were assessed in 58 patients, 1 to 994 days after percutaneous transluminal mitral valvotomy. Transesophageal color Doppler flow mapping detected 22 cases of interatrial shunt whereas transthoracic two‐dimensional echocardiography visualized only five interatrial septal defects. Five types of color Doppler flow patterns of interatrial shunts were found: type 1, a bluish jet passing through the interatrial septum into the right atrium with a small bluish proximal flow in the left atrium (50%); type 2, a bluish jet passing through the interatrial septum into the right atrium without a proximal flow (13.6%); type 3, a predominant bluish proximal flow in the left atrium passing through the interatrial septum with minimal flow entering into the right atrium (18.2%); type 4, an “en face” bluish jet in the right atrium (4.5%); and type 5, a “wall jet” with proximal flow adhering to and entering into the interatrial septum (13.6%). Oximetry demonstrated increased pulmonary‐to‐systemic flow ratio (range 1.07 to 3.32) in 11 patients (50%), which was significantly correlated with the maximal jet area derived from colorDoppler flow mapping (r= 0.80, P= 0.001). Thus, transesophageal color Doppler flow mapping is useful in detection of left‐to‐right interatrial shunts after percutaneous transluminal mitral valvotomy, and recognition of the variable types of color flow mapping may further help identify these atypical interatrial shunts. (ECHOCARDIOGRAPHY, Volume 8, November 1991)

原文English
頁(從 - 到)649-656
頁數8
期刊Echocardiography
8
發行號6
DOIs
出版狀態Published - 11月 1991

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