A study of autonomic nervous activities on dental treatments by an analysis of RR interval changes in electrocardiogram

本文通过对17例残疾患者的心率和血压的变化进行自主神经活动分析，探讨了牙科治疗与牙科治疗引起的精神压力之间的关系（12名男性和5名女性，21.5 ± 8.1岁），分析了心率变异性低频分量（LF-RR）积分值、高频分量（HF-RR）积分值及两者比值（LF/HF-RR）、收缩压低频分量积分值（LF-SBP）、收缩压（SBP）、舒张压（DBP）、心率（HR），Wilcoxon检验，P值<0.05为有统计学意义。(1)牙科手术，即局部麻醉感染或对结构或咬合进行印模，对SBP、DBP和HR没有影响。(2)单纯局麻感染对HF-RR有显著影响。(3)结论：SBP、DBP、HR无变化不代表无应激，而LF-RR、HF-RR、LF/HF-RR、LF-SBP适合于监测患者的应激状态。

We attempted to examine the relationship between dental treatments and stress caused by it in handicapped patients, using an analysis of autonomic activities from their changes in pulse rates and blood pressures.The data was acquired from 17 patients (12 males and 5 females, 21.5 ± 8.1 years old) of our facility during general anesthesia, and analyzed about integral value of low frequency components of heart rate variability (LF-RR), and high frequency components (HF-RR), ratios of the previous two values (LF/HF-RR), integral value of low frequency components of systolic blood pressure (LF-SBP), systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR), with Wilcoxon test, and P values<0.05 were considered statistically significant.(1) Dental procedures, i.e. local anesthesia infection, or making impression of structures or the occlusion, had no effect on SBP, DBP, and HR.(2) On HF-RR, local anesthesia infection alone had significant effect.(3) On LF-RR, LF/HF-RR, and LF-SBP, any of the three procedures had significant effect.We conclude that: no change in SBP, DBP, nor HR does not reflect no stress; on the other hand, LF-RR, HF-RR, LF/HF-RR, and LF-SBP are suitable to monitor patient's stress.