Quadricuspid aortic valve (QAV) is a rare congenital cardiac anomaly causing aortic regurgitation usually in the fifth to sixth decade of life. Earlier, the diagnosis was mostly during postmortem or intraoperative, but now with the advent of better imaging techniques such as transthoracic echocardiography, transesophageal echocardiography (TEE), and cardiac magnetic resonance imaging, more cases are being diagnosed in asymptomatic patients. We present a case of a 39-year-old male who was found to have QAV, with the help of TEE, while undergoing evaluation for a diastolic murmur. The patient was found to have Type B QAV with moderate aortic regurgitation. We also present a brief review of classification, pathophysiology, and embryological basis of this rare congenital anomaly. The importance of diagnosing QAV lies in the fact that majority of these patients will require surgery for aortic regurgitation and close follow-up so that aortic valve replacement/repair is done before the left ventricular decompensation occurs.
Nicholas Suraci, Sofia A. Horvath, Daniela Urina, Gerald Rosen and Orlando Santana (2019) Quadricuspid aortic valve: Case series and review of literature. Echocardiography36(2):406. doi: 10.1111/echo.14240
Yi Lin, Kanhua Yin, Yulin Wang, Danjuan Yang, Rongkui Luo, Lili Dong, Zhiqi Zhang and Chunsheng Wang (2018) Clinical characteristics and surgical outcomes of dysfunctional quadricuspid aortic valve. Journal of Surgical Research229:223. doi: 10.1016/j.jss.2018.04.003
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