Key result
Bioprosthetic aortic valve replacement in a 28-year-old woman with a rare unicuspid aortic valve was complicated by complete heart block requiring pacemaker placement.
Why the study?
Unicuspid aortic valve is an extremely rare cause of aortic stenosis, accounting for about 0.02% of the adult population.
Case Report (n=1)
No
This case illustrates a rare instance of a unicuspid aortic valve presenting as critical aortic stenosis in a young adult, complicated by postoperative complete heart block after surgical valve replacement.
Alerts clinicians to conduction block risk after AVR for unicuspid valve; leaves open need for larger studies to quantify incidence.
Unicuspid aortic valve (UAV) is an extremely rare cause of aortic stenosis, accounting for about 0.02% of the adult population. We present a rare case of UAV in a young woman who presented with dyspnea on exertion. She underwent extensive work-up, including a transthoracic echocardiogram, which was notable for critical aortic stenosis with significant pulmonary hypertension. A subsequent transesophageal echocardiogram confirmed the severe degree of aortic stenosis and revealed the possibility of a UAV. She was referred to a cardiothoracic surgeon and underwent bioprosthetic aortic valve replacement. Intraoperative evaluation confirmed the rare occurrence of a UAV. Postoperative course was complicated by complete heart block necessitating pacemaker placement.
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Ravi et al. (2019) conducted a case report in Unicuspid aortic valve with severe aortic stenosis (n=1). Bioprosthetic aortic valve replacement was evaluated on Postoperative complication. Bioprosthetic aortic valve replacement in a 28-year-old woman with a rare unicuspid aortic valve was complicated by complete heart block requiring pacemaker placement.
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