https://www.selleckchem.com/products/amlexanox.html howed that I radioactive particle implantation was a safe, reliable and effective therapeutic method for early lung cancer. The preliminary clinical observation showed that 125I radioactive particle implantation was a safe, reliable and effective therapeutic method for early lung cancer. To objectively evaluate the feasibility, safety, effectiveness and short-term outcome of totally thoracoscopic mitral valve replacement via two port approach, we conducted a retrospective study comparing two port approach with three port approach for mitral valve replacement. Data for all thoracoscopic mitral valve replacement were analyzed from Guangdong Cardiovascular Institute between January 1, 2016 and December 31, 2017. To account for selection bias between two port approach and three approach, one-to-one propensity score caliper matching without replacement was performed. The clinical data of the two groups were collected, including preoperative cardiac function, operative data, postoperative complications, and short-term outcome. A total of 330 patients who underwent totally thoracoscopic mitral replacement via two port or three port from January 1, 2016 to December 31, 2017 were enrolled (two-port group n=103; three-port group n=227). Propensity score matching resulted in 71 matched pairs with three-port totally thoracoscopic mitral valve replacement. Two-port totally thoracoscopic mitral valve replacement is a safe, effective, and feasible procedure for mitral valve replacement. No significant differences in cardiopulmonary bypass time, aortic cross-clamp time, overall operative time, perioperative mortality, or complications were observed between two-port and three-port totally thoracoscopic mitral valve replacement. Two-port totally thoracoscopic mitral valve replacement is a safe, effective, and feasible procedure for mitral valve replacement. Permanent pacemaker implantation (PPI) is widely used for the treatment of c