Changes of plasma concentration of carbon monoxide in the patients following cardiopulmonary bypass / 中华麻醉学杂志

ABSTRACT

Objective To investigate the changes of plasma carbon monoxide (CO) concentration in patients undergoing cardiac surgical procedures Methods Arterial blood samples were obtained via the radial artery catheter ,before incision, CPB30min, before cardioversion,before weaning from CPB, 20 min after weaning from CPB,4h,24h after surgery, respectively, to measure the plasma CO concentration with ultraviolet spectrophotometry Results Plasm CO concentration increased significantly after the commencement of CPB(P