Recurrent pannus formation causing prosthetic aortic valve dysfunction: Is excision without valve re-replacement applicable?

Journal of Cardiothoracic Surgery

Ahmad K Darwazah¹ 

[1] Department of Cardiac Surgery, Makassed and Ramallah Hospital mount of Olives, Jerusalem, 91194, Israel

关键词: Surgical excision;    Valve re-replacement;    Recurrent pannus;    Pannus formation;    Prosthetic aortic valve;    Prosthetic valves dysfunction;   

Others  :  1153113
DOI  :  10.1186/1749-8090-7-62

 received in 2012-01-23, accepted in 2012-06-16,  发布年份 2012

【 摘 要 】

Prosthetic valve dysfunction at aortic position is commonly caused by pannus formation. The exact etiology is not known. It arises from ventricular aspect of the prosthesis encroaching its leaflets causing stenosis or it may remain localized causing left ventricular outflow tract obstruction without affecting valve function.

The difference in location entails different approaches in management. Such a pathology requires surgical excision of the pannus with or without valve re-replacement.

A recurrent pannus was observed in a female patient who needed repeated surgical intervention to excise a localized pannus without re-replacement of a well functioning prosthetic valve.

Management of our case presents several questions, whether recurrence of pannus is caused by sparing the prosthetic valve, is it simply an exaggeration of an inflammatory healing process in certain individuals or is it ideal to re-replace the valve despite a well preserved function.

【 授权许可】

   
2012 Darwazah; licensee BioMed Central Ltd.

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