심실중격결손이나 심방중격결손과 같이 대동맥 차단시간이 길지 않은 질환에 있어서는 HTK용액의 심근보호효과가 냉혈심정지액과 비슷한 효과를 가짐을 알 수 있었다. 따라서 한번 투여로 2~3시간의 수술이 가능한 장점을 가진 HTK용액을 소아에서도 유용하게 사용할 수 있을 것으로 생각되며 향후 복잡심기형과 같은 긴 대동맥차단이 요구되는 소아환자의 안정성에 대해서는 더 많은 연구가 필요할 것으로 생각된다.
Background: There is limited data on comparisons between the effect of histidin-etryptophan-ketoglutarate (HTK) solution and cold blood cardioplegic (CBC) solution in pediatric cardiac surgery. The purpose of this study was to compare the myocardial protective effect of HTK solution and CBC solution in patients undergoing pediatric cardiac surgery. Materials and Methods: We selected 49 patients with ventricular septal defect and atrial septal defect. HTK solution was used in 21 patients and CBC solution was used in 28 patents. HTK solution was given as a single dose, whereas CBC solution was used in the usual multi-dose method. The incidence of EKG change and concentration of Troponin T and CK-MB were compared for the evaluation of myocardial damage. Results: There were no significant differences in the incidence of ST, T segment change by EKG and serial cardiac enzyme levels between two groups. Conclusion: These results suggested that the myocardial protective effect of HTK solution was similar to CBC solution in simple pediatric cardiac surgery.
