Update: We are now collecting Disclosures from all users who edit content. You will be prompted to update these when you next edit content or you can complete your disclosures at any time in your user profile. This has been reflected in an updated terms-of-use.

Porcelain left atrium

Last revised by Dr Daniel J Bell on 16 Nov 2020

Porcelain left atrium, also known as coconut left atrium, is a term used when a large part of or the entire left atrial wall becomes calcified. It can occur as a rare consequence of endocarditis (with underlying rheumatic heart disease). It has also been described in the setting of end-stage renal disease 5.

Some publications use the terms "porcelain left atrium" and "coconut left atrium" as synonymous while others use the term "coconut left atrium" when it involves the interatrial septum 14.

There is a slightly greater female predilection.

Some patients may present with longstanding symptoms although others may be asymptomatic. A concurrent presence of atrial fibrillation and a past history of mitral valve surgery is common.

Calcification of large parts of the left atrial pericardium may suggest the diagnosis.

It may require an endoatriectomy at the time of valve replacement 2.

It was initially described by H Claude and P Levaditi in 1898 8

If it involves only the posterior free wall consider:

ADVERTISEMENT: Supporters see fewer/no ads

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.