Engelsk titel: Quadricuspid aortic valve incidental finding in echocardiography
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Författare:
Ibrahim, Arish
;
Emilsson, Kent
Email: arish.ibrahim@orebroll.se
Språk: Swe
Antal referenser: 8
Dokumenttyp:
Fallbeskrivning
UI-nummer: 15037951
Sammanfattning
An echocardiographic examination of a middle-aged woman at Örebro University Hospital, showed an unusual finding. The
patient had a quadricuspid aortic valve. The reviewed literature, consisting of older and more recent studies based on cases found
substantially through echocardiographic examinations, indicate an estimated prevalence of 0.013% to 0.043%. The quadricuspid
aortic valve is believed to develop during the separation of the truncus arteriosus into the aortic artery and the pulmonary artery
following the 4th week of gestation. The two most common types of this rare abnormality consist of either four equally sized cusps or
one smaller cusp in addition to three equally sized cusps. There are also cases of associated congenital cardiac malformations,
where the most recurrent ones seem to be anomalies of the coronary arteries. A quadricuspid aortic valve is not only a rare
phenomenon; rather it is an abnormal valve with risk of malfunction. The most commonly associated valve malfunction is aortic
regurgitation, which is encountered more frequently in older patients. This may indicate that the quadricuspid aortic valve is more
prone to degeneration compared to the normal tricuspid aortic valve, which may highlight the necessity of following up such a finding.