RESULTS	Average operation time and blood loss decreased significantly in the CPW group ( 98.06 + / - 19.42 minutes , and 131.69 + / - 62.41 mL ) as compared with those in the CC group ( 108.45 + / - 22.35 minutes , and 181.57 + / - 82.10 mL ) ( P < 0.05 ) .\