Abstract
Introduction: The relationship between premenstrual syndrome (PMS) and autonomic nervous system (ANS) is complex, with limited data on PMS-related stress further inducing disturbances in the ANS balance. We aimed to investigate the ANS functions through heart rate changes in adolescents with and without PMS.
Method: Participants aged 12-18 years were evaluated for the presence of PMS with the premenstrual syndrome scale and seperated into PMS and control groups. All participants were evaluated by 12-lead surface electrocardiography (ECG) and 24-hour rhythm Holter recordings during the follicular and luteal phases of the menstrual cycle.
Results: A total of 48 participants (29 PMS, 19 control) were included in our study. The mean age was 15.37 ± 1.42 years in the PMS group and 14.66 ± 1.36 years in the control group. ECG (ventricular rate, PR interval, QRS duration, QT and QTc) and holter (SDNN-ms, SDNNi, RMS_SD, Triangular index) data did not differ in both groups and between phases.
Conclusions: Our results showed that autonomic activity in adolescents with PMS does not vary from that of the control group or according to menstrual cycle phases. This might be attributed to the potential correlation between the augmentation of autonomic activity response and both age and the severity of the illness.
Keywords
Premenstrual syndrome, Adolescent, Autonomic nervous system, Heartrate variability, Autonomic dysfunction, Sympathetic activity