Systematic evaluation of therapeutic effects of stem cell transplantation trials for heart diseases in China

Background To systematically assess the quality of reports of clinical trials of stem cell for heart diseases published in Chinese. Methods The quality of reports was assessed according to the CONSORT statement and the Jadad score. The association between the CONSORT scores and the reported therapeutic effects was evaluated. Results A total of 36 randomized clinical trials were identified, and 1552 patients were included. The mean CONSORT score was 7.06 (SD = 2.99). The proportion of reports with a Jadad score of 3 was 8.33%. The improvement of left ventricular function, myocardial perfusion area, left ventricular diastolic diameter, and cardiac output decreased with the increase in the CONSORT score. Conclusions The percentages of high‐quality reports published in Chinese on stem cell therapy for heart diseases are low. Although stem cell transplantation seems promising for heart diseases, high‐quality studies are needed to verify the conclusions．