Background: Premenstrual syndrome (PMS) shows a wide variety of cyclic and recurrent physical, emotional, and behavioral symptoms occurring during the late luteal phase of the menstrual cycle and abating shortly following the beginning of menses. The present study assesses whether the activity of the autonomic nervous system is altered during the menstrual cycle of women with different degrees of premenstrual symptomatology
Material & Methods: Twenty PMS cases with their mean age 20±1.5 with regular menstrual cycles participated in this study. The autonomic nervous system activity was noninvasively measured by HRV power spectral analysis & menstrual distress questionnaire was compared among normal controls & PMS cases.
Results: has shown significant change in VHF (P=0.00), VLF (P=0.02), Sympathetic vagal balance (P=0.05) in PMS cases as compared to control. Significant increase in VHF (P=0.03) & VLF (P=0.00) is seen in leuteal phase as compared to follicular phase in PMS cases. SDNN & RR interval was also compared it was found to be significantly decreased in leuteal phase of PMS cases as compared to controls.
Conclusion: we can say that there is sympathetic over activity in Late leuteal phase of menstrual cycle in females of age group 20-25.This sympathetic over activity hampers in day to day routines of the subjects as dysphoric symptoms are increased markedly during late luteal phase in PMS cases as compared to controls.