摘要
通过对50例单纯婴儿手足搐搦症和同数正常婴儿血清钙浓度(mmol/L)及心电图Q-oT/Q-T比率、Q-Tr(Q-T比率)、Q-oTc、Q-Tc及ST段测定结果的分析发现:血清钙浓度与Q-oT/Q-T、Q-oTc、ST段呈高度显著线性负相关。当Q-oT/Q-T>0.57时,诊断低血钙的假阳性率及假阴性率均为6％。Q-oTc>0.24秒时,诊断低血钙的假阳性率为6％,假阴性率为8％。作者建议将上述两项作为心电图诊断低血钙的临床实用指标,尤其是Q-oT/Q-T更为方便。
The correlation between the total serum calcium and five ECG indices [the ratio between the Q-oT interval and the Q-T interval (Q-oT/Q-T), the Q-T rate (Q-Tr), the corrected Q-oT interval (Q-oTc), the corrected Q-T (Q-Tc) and the S-T segment (S-T)] was assessed in 50 infantile tetany and 50 normal infants. The total serum calcium correlated with Q-oT/Q-T (r=-0.94, P<0.001) and the Q-oTc interval (r=-0.88, P<0.001), and also correlated with the S-T segment (r=-0.79, P<0.001). When Q-oT/Q-T>0.57, the false positive and the false negative rate of diagnosing hypocalcemia were both 6 per cent. When the Q-oTc interval >0.24 second, the false positive rate of diagnosing hypocalcemia was 6 per cent, the false negative rate was 8 per cent. Therefore, the author suggests that two aforementioned indices were used as a clinical guide for diagnosing hypocalcemia, especially the Q-oT/Q-T rate was more convenient.
出处
《天津医药》
CAS
1993年第11期663-665,共3页
Tianjin Medical Journal
关键词
低钙血症
心电图
诊断
total serum calcium Q-oT/Q-T rate Q-oTc interval S-T segment
