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Left ventricular inflow obstruction due to a coronary arteriovenous fistula : a paediatric case report

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Title: Left ventricular inflow obstruction due to a coronary arteriovenous fistula : a paediatric case report
Authors: Chida-Nagai, Ayako Browse this author
Yamazawa, Hirokuni Browse this author
Tsujioka, Takao Browse this author
Taniguchi, Kota Browse this author
Sasaki, Osamu Browse this author
Izumi, Gaku Browse this author
Kato, Nobuyasu Browse this author
Takeda, Atsuhito Browse this author →KAKEN DB
Keywords: Congenital heart disease
Coronary atrioventricular fistula
Left ventricular inflow obstruction
Case report
Issue Date: 11-Aug-2021
Publisher: BioMed Central
Journal Title: BMC cardiovascular disorders
Volume: 21
Issue: 1
Start Page: 389
Publisher DOI: 10.1186/s12872-021-02190-4
Abstract: Background We report a rare case of left ventricular inflow obstruction from a branch of the left circumflex coronary artery to the right atrium caused by a coronary arteriovenous fistula (CAVF) in a young Japanese male child. Case presentation The patient was diagnosed with CAVF following a heart murmur shortly after birth. The left-to-right shunt caused right ventricular volume overload and pulmonary congestion. An emergency surgical intervention was performed for the CAVF on day 6 after birth. However, by 5 years of age, his left ventricular inflow obstruction worsened. We found an abnormal blood vessel originating from the proximal part of a branch of the left circumflex coronary artery, circling the outside of the mitral valve annulus along the medial side of the coronary sinus. As the child gets older, the blood inflow into the left ventricle might get restricted further, resulting in left-sided heart failure. Conclusion Our findings suggest that even after CAVF closure surgery, it is essential to monitor for complications caused by progressive dilatation of a persistent CAVF.
Type: article
Appears in Collections:北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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