Li P, et al. - In this study, 132 individuals were examined to analyze the outcomes of cervical decompression operation on cardiac autonomic regulation and its relation to recovery of somatic neurological function in cervical spondylotic myelopathy (CSM) cases. As compared to the baseline level (6 months later) patients' Japanese Orthopaedic Association score and markers of parasympathetic activity in 24-h heart rate variability (HRV) assessment were significantly higher in operative group. In both hypertension and non-hypertension patients, blood pressure, primarily systolic blood pressure (SBP), was significantly downregulated. A significant decline in the mean heart rate was also noticed. They suggested the improvement in both somatic neurological function and cardiac autonomic regulation in CSM patients whereas achieved JOA score was significantly positively associated with improvement in HRV and cardiac parasympathetic activity after cervical decompression operation.