ArticleCureus2025
Quadricuspid Right Atrioventricular Valve: A Cadaveric Case Report.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Quadricuspid heart valve anomalies are rare congenital malformations, typically affecting the aortic valve; involvement of the right atrioventricular (tricuspid) valve is exceedingly uncommon. Embryologically, the tricuspid valve forms through complex fusion and delamination processes involving the endocardial cushions. This case describes a quadricuspid right atrioventricular valve identified during routine cadaveric dissection in an elderly male. Gross examination revealed four distinct cusps and an accessory papillary muscle, along with right atrial dilation, near-complete atrophy of the right auricle, right ventricular hypertrophy, and evidence of poor valve coaptation. These findings, combined with signs of cardiomegaly, suggest significant valvular dysfunction during life, likely contributing to chronic tricuspid regurgitation. During the gross examination, valvular distortion was noted, highlighting the potential for secondary degenerative changes superimposed upon congenital structural anomalies, particularly in the elderly. Recognition of such anomalies is essential, as they may predispose individuals to valvular incompetence, right-sided heart dysfunction, and other clinical complications. Early identification and characterization of these rare malformations may influence clinical management and surgical decision-making.
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