Clinical Observation of Hemorrhage in Children with Tetralogy of Fallot after Cardiopulmonary bypass
Objective Observe the change of platelet count and the amount of bleeding to children with tetralogy of Fallot after cardiopulmonary bypass early inter-vention of postoperative bleeding,reduce the abnormal bleeding.Methods Random selection 27 cases of the children with tetra logy of Fallot as the research object(TOF group) ,20 cases of the children with ventricular septal defect as the control group ( VSD group) .Cardiopulmonary bypass time and cardiopulmonary bypass temperature were recorded.All patients were collected blood samples for routine blood test.Platelet count(PLT)were recorded at the 0th,24th,48th and 72th hours post-operation. The blood loss of the pleural effusion drainage was recorded for patients at the 24th hour post-operation.Results Platelet count values of TOF group are lower than that of VSD group from right now post operation to 48 hours post operation,significant difference,there was statistically significant(P<0.05).Platelet count values of TOF group return to the normal range after 72 hours in post CPB and the values of VSD group return after 24 hours( >100 ×109/L).The CPB time values of TOF group are significantly longer than that of VSD group(P<0.05),and the CPB temperature values of TOF group are significantly lower than that of VSD group(P<0.05).The pleural effusion drainage bleeding values of TOF group are significantly higher than that of VSD group(P<0.05).Conclusion Platelet count values of TOF group are de-creased significantly.Platelet count values of TOF group are higher than that of VSD group.The time and temperature of cardiopulmonary bypass are the higher risk rea-sons.Cardiopulmonary bypass lead pleural drainage bleeding values of TOF group to increase.Children with TOF need more hemostasis intervention after cardiopulmonary bypass early.
ChildrenTetralogy of FallotCardiopulmonary bypassBleeding
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