Venborg Jacob, Wegeberg Anne-Marie, Kristensen Salome, Brock Birgitte, Brock Christina, Pfeiffer-Jensen Mogens
Department of Rheumatology, Aarhus University Hospital, 8200 Aarhus, Denmark.
Mech-Sense, Department of Gastroenterology and Hepatology, Aalborg University Hospital, 9000 Aalborg, Denmark.
Pharmaceuticals (Basel). 2021 Nov 16;14(11):1166. doi: 10.3390/ph14111166.
(1) Polymyalgia rheumatica (PMR) is an inflammatory disease characterised by pain, morning stiffness, and reduced quality of life. Recently, vagus nerve stimulation (VNS) was shown to have anti-inflammatory effects. We aimed to examine the effect of transcutaneous VNS (t-VNS) on PMR. (2) Fifteen treatment-naïve PMR patients completed the study. Patients underwent a 5-day protocol, receiving 2 min of t-VNS stimulation bilaterally on the neck, three times daily. Cardiac vagal tone (CVT) measured on a linear vagal scale (LVS), blood pressure, heart rate, patient-reported outcome, and biochemical changes were assessed. (3) t-VNS induced a 22% increase in CVT at 20 min after initial stimulations compared with baseline (3.4 ± 2.2 LVS vs. 4.1 ± 2.9 LVS, = 0.02) and was accompanied by a 4 BPM reduction in heart rate (73 ± 11 BPM vs. 69 ± 9, < 0.01). No long-term effects were observed. Furthermore, t-VNS induced a 14% reduction in the VAS score for the hips at day 5 compared with the baseline (5.1 ± 2.8 vs. 4.4 ± 2.8, = 0.04). No changes in CRP or proinflammatory analytes were observed. (4) t-VNS modulates the autonomic nervous system in patients with PMR, but further investigation of t-VNS in PMR patients is warranted.
(1)风湿性多肌痛(PMR)是一种以疼痛、晨僵和生活质量下降为特征的炎症性疾病。最近,迷走神经刺激(VNS)被证明具有抗炎作用。我们旨在研究经皮迷走神经刺激(t-VNS)对PMR的影响。(2)15例未经治疗的PMR患者完成了该研究。患者接受了为期5天的方案,每天双侧颈部接受2分钟的t-VNS刺激,共3次。评估了基于线性迷走神经量表(LVS)测量的心脏迷走神经张力(CVT)、血压、心率、患者报告的结果以及生化变化。(3)与基线相比,初始刺激后20分钟时t-VNS使CVT增加了22%(3.4±2.2 LVS对4.1±2.9 LVS,P = 0.02),同时心率降低了4次/分钟(73±11次/分钟对69±9次/分钟,P < 0.01)。未观察到长期影响。此外,与基线相比,第5天时t-VNS使髋部视觉模拟评分(VAS)降低了14%(5.1±2.8对4.4±2.8,P = 0.04)。未观察到CRP或促炎分析物的变化。(4)t-VNS可调节PMR患者的自主神经系统,但有必要对PMR患者中的t-VNS进行进一步研究。
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