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The effects of myofascial trigger point injections on nocturnal calf cramps

Authors
 Do-Hyeong Kim  ;  Duck Mi Yoon  ;  Kyung Bong Yoon 
Citation
 JOURNAL OF THE AMERICAN BOARD OF FAMILY MEDICINE, Vol.28(1) : 21-27, 2015 
Journal Title
 JOURNAL OF THE AMERICAN BOARD OF FAMILY MEDICINE 
ISSN
 1557-2625 
Issue Date
2015
MeSH
Aged ; Aged, 80 and over ; Anesthetics, Local/administration & dosage* ; Female ; Humans ; Injections, Intramuscular ; Lidocaine/administration & dosage* ; Male ; Middle Aged ; Muscle, Skeletal* ; Myofascial Pain Syndromes/therapy* ; Sleep-Wake Transition Disorders/therapy*
Keywords
Insomnia ; Muscle Cramp ; Myofascial Pain Syndromes
Abstract
BACKGROUND: The purpose of this study was to elucidate the effects of injection at trigger points on pain and sleep disturbance in patients with nocturnal calf cramps (NCCs). METHODS: Patients with NCCs that occurred at least once per week and who had myofascial trigger points (MTrPs) on the gastrocnemius muscles were enrolled in the study for 9 months. At the first visit (T0), we measured the intensity of NCC pain on an 11-point numeric rating scale, recorded the frequency of NCCs, and calculated the Insomnia Severity Index (ISI). We then checked for MTrPs on the gastrocnemius muscles and injected 1-2 mL of 0.25% lidocaine into each of the trigger points. At 1 (T1), 2 (T2), and 4 (T3) weeks after the first visit, we repeated the process performed at T0. RESULTS: Twelve patients completed the treatment schedule and attended the follow-up visits. Mean values of the numeric rating scale pain score, frequency of cramps, and ISI declined significantly at T1, T2, and T3 compared with baseline (all P < .01). Of 12 patients, 10 had clinical insomnia before treatment, and this number decreased significantly to 3 patients at T2 and 1 patient at T3 (P = .012 and P = .001, respectively). CONCLUSIONS: These preliminary data show that injection at MTrPs in patients with NCCs not only alleviated pain and reduced the frequency of cramps but also lessened the severity of insomnia as measured by the ISI. A larger randomized controlled trial is needed to confirm these findings and determine whether the effect lasts over the long term.
Full Text
http://www.jabfm.org/content/28/1/21.long
DOI
10.3122/jabfm.2015.01.140151
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Do Hyeong(김도형) ORCID logo https://orcid.org/0000-0003-2018-8090
Yoon, Kyoung Bong(윤경봉) ORCID logo https://orcid.org/0000-0002-4167-1375
Yoon, Duck Mi(윤덕미)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/139806
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