A 61-year-old man who had a serious heart condition was released from a hospital Saturday after his condition recovered enough to do away with a left ventricular assist system, or LVAS, following a transplant of his own bone marrow cells, the Saitama Medical Center announced.

"Some patients equipped with artificial hearts have seen their heart functions recover naturally, but I believe bone marrow cell transplant had some effect (on the man)," said professor Shunei Kyo, who treated the patient.

The man was hospitalized after developing acute myocardial infarction in February, and at point his heart stopped beating, according to the hospital in Kawagoe, Saitama Prefecture.