Abstract
Objective: To explore the characteristics of intra-cardiac blood cysts
to provide a reference for accurate diagnosis and prognosis. Methods: In
this study, 8 cases of cardiac blood cysts were analyzed retrospectively
from January 2006 to March 2020, and the clinical symptoms,
echocardiography, operation and prognosis were analyzed. Results: All
clinical symptoms were not typical and cysts were isolated. The cysts
were attached to the anterior leaflet of the mitral valve (n=4),
posterior papillary muscle and chordae of mitral valve (n=1), septal
leaflet of the tricuspid valve (n=2), or the tricuspid valve orifice and
tricuspid anterior annulus (n=1). Echocardiography revealed the cysts
were small and balloon‑like. They had high tension wall, the wall was
thin and smooth. Calcification could be seen on the cyst wall. The
inside was none echogenicity area and the cyst moved and swung with the
valve or chordae. Of the 8 patients, 1 had no hemodynamic effects and
did not need surgery. The other 7 cases were confirmed by surgery and
pathology for the cardiac blood cysts. 3 subjects underwent simple
cystectomy alone. 1 with infectious endocarditis and mitral valve
vegetation, and the other one caused the left ventricular outflow tract
obstruction. 2 subjects had a history of mitral valve abnormality with
mechanical mitral valve replacement. Conclusions: Cardiac blood cysts
are rare and benign heart condition in adults. They can be diagnosed by
echocardiography to guide intervention.