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.
Cardiac blood-filled cyst is also named cardiac blood cyst for short. It
is a rare primary benign tumor in the heart. It was firstly reported by
Professor Elasser in 1844 and most commonly observed in children,
especially in neonates, with the age increasing cyst rupture and rarely
found in adults. It can occur in most parts of the heart and causes
different hemodynamic effects. In this study, we retrospectively
reviewed 8 cases of cardiac blood cyst and describe the clinical
features, echocardiographic characteristics, surgical procedures and
prognosis.