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目的运用平板运动试验对有昼夜变化规律的小儿室性早搏(VPC)进行运动危险程度的评估。方法对423例有昼夜变化规律的VPC同时伴有心脏症状的患儿进行平板运动试验。结果平板运动试验检查发现423例VPC中,日间型197例,平板运动试验阳性51例(25.8%);夜间型226例,平板运动试验阳性29例(12.9%),二者存在显著性差异(p<0.001)。结论平板运动试验可发现潜在的危险因素,对有昼夜变化规律的频发VPC患儿运动危险程度的评估有指导意义。
Objective To evaluate the degree of exercise risk in children with ventricular premature beats (VPC) with diurnal variation using treadmill exercise test. Methods Totally 423 children with VPC with circadian rhythm and cardiometabolic symptoms were subjected to treadmill exercise test. Results Among the 423 VPC cases, 197 cases were found daytime exercise test, 51 cases were treadmill exercise test (n = 25.8%), 226 cases were nocturnal type test, 29 cases were positive treadmill exercise test (12.9%), there was a significant difference between the two (p <0.001). Conclusion The treadmill exercise test may find out the potential risk factors, and it is instructive for the assessment of the degree of exercise risk in children with frequent VPCs with diurnal variation.