Nocturnal heart rate variability is lower in temporomandibular disorder patients than in healthy, pain-free individuals.

摘要: Aims: To determine whether patients with a painful myofascial temporomandibular disorder (TMD) have diminished nocturnal heart rate variability (HRV), marker of autonomic nervous system (ANS) dysfunction, relative to healthy, pain-free controls. Methods: Participants TMD and volunteers underwent polysomnography studies during which HRV indices were measured. Multiple linear regression analyses used status exerted unique effects on HRV. Results: Ninety-five participants (n = 37 TMD; n 58 controls) included in the analyses. The group had lower standard deviation R-R intervals (89.81 ± 23.54 ms versus 107.93 34.42 ms, P <= .01), root mean squared successive difference (RMSSD) (54.78 27.37 81.88 46.43 < high frequency spectral power (2336.89 1224.64 ms2 2861.78 1319 ms2, .05) than control group. ratio low-frequency (LF) high-frequency (HF) was higher (2.47 2 1.38 0.65, .01). differences RMSSD (91.21 112.03 LF:HF (0.71 0.32, .01) remained significant after controlling for age psychological distress. Conclusion: Myofascial revealed controls. Further research should focus processes that address this ANS imbalance, may potentially lead effective therapeutic interventions.