Nosignificant differences in the decline of hemoglobin , hematocrit , and perioperative transfusion rates between groups were seen , whereas clot retention ( grade @ ) after the treatment seemed to occur more often in the monopolar group ( @ of @ -LSB- @ % -RSB- in monopolar group vs @ of @ -LSB- @/@ % -RSB- in TURis group ; P = @ ) .