RESUMO
Objective To investigate the effects of tirofiban combined with nitroprusside injection through the rapid exchange balloon catheter with self-made side holes on no-reflow (NR)phenomenon during elective percutaneous coronary intervention (PCI).Methods A total of 49 patients with NR phenomenon were randomly divided into the balloon catheter group (n=25)and the guiding catheter group (n=24).Tirofiban combined with nitroprusside were used in both groups.Thrombolysis in myocardial infarction (TIMI)grade and corrected TIMI frame count (CTFC)of target coronary artery at 10 minutes after administration were assessed.Results At 10 minutes after drugs injection,there were 21 (84.0%)patients with target of coronary TIMI 3 grade in the balloon catheter group,and 13 (54.2%)patients in the guiding catheter group.The CTFC was (33.5±12.5)frame in the balloon catheter group,and (41.9±1 5.3)frame in the guiding catheter group.The difference in TIMI and CTFC between the two groups was significantly (P <0.05).Conclusion Injection tirofiban combined with nitroprusside through the rapid exchange balloon cathe-ter with self-made side holes in NR patients during elective PCI might be feasible and effective.