Key result
Radiofrequency therapy significantly decreased visual analog scale scores and altered heart rate variability and photoplethysmography parameters in patients with chronic cervical or lumbar pain.
Why the study?
Does radiofrequency therapy alter heart rate variability and photoplethysmography parameters in patients with chronic cervical or lumbar pain?
Observational (n=66)
Does radiofrequency therapy alter heart rate variability and photoplethysmography parameters in patients with chronic cervical or lumbar pain?
Heart rate variability and photoplethysmography parameters change significantly following radiofrequency therapy and may serve as physiological assessment signals for pain relief efficacy.
Answers are grounded in this paper and cite their sources.
RFT-associated HRV/PPG shifts may signal pain relief; leaves open validation as objective biomarkers in prospective trials.
BACKGROUND: Radiofrequency therapy (RFT) generates molecular motion and produces heat and electromagnetic effects on tissues, which attenuate pain sensation and thereby relieve pain. This study was to observe the altering trend of physiological parameters after RFT for chronic cervical or lumbar pain. METHODS: This study recruited 66 patients with chronic cervical or lumbar pain and recorded their physiological parameters before and after RFT using heart rate variability (HRV) and photoplethysmography (PPG) to explore the feasibility of RFT efficacy assessment. RESULTS: The patients' visual analog scale scores significantly decreased after RFT and the HRV parameters that represented parasympathetic activity significantly changed (HR decreased, and R-R interval and low- and high-frequency power increased significantly). Meanwhile, the PPG parameters that represented sympathetic activity also increased (PPG amplitude and autonomic nervous system state significantly decreased). CONCLUSIONS: This study showed significant efficacy of RFT in patients with chronic cervical or lumbar pain. The changes of HRV and PPG parameters may explain part of the mechanisms of RFT.
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Ye et al. (2016) conducted an observational in Chronic cervical or lumbar pain (n=66). Radiofrequency therapy (RFT) vs. Before RFT was evaluated on Visual analog scale scores and physiological parameters (HRV and PPG). Radiofrequency therapy significantly decreased visual analog scale scores and altered heart rate variability and photoplethysmography parameters in patients with chronic cervical or lumbar pain.
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