Retrograde coronary sinus perfusion: a safe alternative for ensuring cardioplegic delivery in aortic valve surgery.

摘要: During aortic valve surgery, cardioplegic solution is delivered through direct cannulation of both coronary ostia. Since this approach may cause an intimal injury leading to acute dissection or late ostial stenosis, we have evaluated retrograde sinus perfusion (RCSP) as a means delivering cardioplegia in 12 patients undergoing replacement. The retroperfusion the was performed with balloon-tipped catheter inserted into right atrium. pressure averaged 40 mm Hg. Twelve antegrade served controls. Both groups were matched for preoperative and intraoperative data. postoperative evaluation focused on hemodynamic status, evidenced by serial measurements right-sided pressures cardiac output at 1, 6, 12, 18, 24 hours after operation. stroke volume index left ventricular systolic work indexes then calculated. There no statistically significant difference between two groups. We conclude that RCSP simple, safe, effective protection during surgery.