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Changes in Heart Rate Variability in Patients with Spleen-Qi Deficiency Syndrome
Agnese Olivera-Toro,Rubén Fossion,Lei Li,Rosa E. López-Gómez,Emma López-Espinosa,Ismael Jiménez-Estrada,Salvador Quiroz-González 사단법인약침학회 2019 Journal of Acupuncture & Meridian Studies Vol.12 No.4
Many functional diseases are related to dysautonomia, and heart rate variability has been used to assess dysautonomia. However, heart rate variability has not been studied in Spleen-Qi deficiency syndrome (SQDS). Healthy volunteers (n Z 37) and patients with SQDS (n Z 67), recruited from the Clinic of the State University of Ecatepec Valley were included in the study. Outcome measures were average heart rate, standard deviation of the normal-to-normal heartbeat intervals, low frequency (LF), high frequency (HF) power, and the LF/HF ratio. Also, intestinal peristalsis, gastrointestinal symptoms (GSs), fatigue, and level of attention were measured. Standard deviation of the normal-to-normal heartbeat intervals (17 Æ 2.3%) and HF (14 Æ 3.1%) were lower in SQDS patients (17 Æ 1.3%) than in healthy volunteers. SQDS patients had higher heart rate, LF power, LF/HF ratio, and fatigue scores (9.6 Æ 1.12%, 16 Æ 2.1%, 22 Æ 3.8%, and 21 Æ 4.1%). The fatigue correlated positively with the LF/HF ratio and negatively with HF power. The SQDS group had lower concentration performance (16.2 Æ 1.9%) in the d2 test. The intestinal peristalsis showed a reduction (15 Æ 1.3%) as compared with control. GS score and peristalsis correlated negatively with HF. Our results suggest that the pathology of SDQS could be associated with a low vagal tone which causes a decrease in peristalsis, increased fatigue, reduced attention, and appearance of GSs.