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CME

Can Alcohol Intake Relieve Fibromyalgia Symptoms?

  • Authors: News Author: Janis C. Kelly
    CME Author: Laurie Barclay, MD
  • CME Released: 4/17/2013
  • THIS ACTIVITY HAS EXPIRED FOR CREDIT
  • Valid for credit through: 4/17/2014, 11:59 PM EST
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Target Audience and Goal Statement

This article is intended for primary care clinicians, rheumatologists, and other specialists who care for patients with fibromyalgia.

The goal of this activity is to provide medical news to primary care clinicians and other healthcare professionals in order to enhance patient care.

Upon completion of this activity, participants will be able to:

  1. Describe the association between alcohol consumption and symptom severity in patients with fibromyalgia.
  2. Describe the association between alcohol consumption and quality of life in patients with fibromyalgia.


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Medscape, LLC, encourages Authors to identify investigational products or off-label uses of products regulated by the US Food and Drug Administration, at first mention and where appropriate in the content.


Author(s)

  • Janis C. Kelly

    Janis C. Kelly is a freelance writer for Medscape. She has been a medical journalist since 1976, with extensive work in rheumatology, immunology, neurology, sports medicine, AIDS and infectious diseases, oncology, and respiratory medicine.

    Disclosures

    Disclosure: Janis C. Kelly has disclosed no relevant financial relationships.

Editor(s)

  • Brande Nicole Martin, MA

    CME Clinical Editor, Medscape, LLC

    Disclosures

    Disclosure: Brande Nicole Martin, MA, has disclosed no relevant financial relationships.

CME Author(s)

  • Laurie Barclay, MD

    Freelance writer and reviewer, Medscape, LLC

    Disclosures

    Disclosure: Laurie Barclay, MD, has disclosed no relevant financial relationships.

CME Reviewer(s)

  • Joi Tisdale

    CME Program Manager, Medscape, LLC

    Disclosures

    Disclosure: Joi Tisdale, has disclosed no relevant financial relationships.


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CME

Can Alcohol Intake Relieve Fibromyalgia Symptoms?

Authors: News Author: Janis C. Kelly CME Author: Laurie Barclay, MDFaculty and Disclosures
THIS ACTIVITY HAS EXPIRED FOR CREDIT

CME Released: 4/17/2013

Valid for credit through: 4/17/2014, 11:59 PM EST

processing....

Clinical Context

Fibromyalgia (FM) is a prevalent, chronic condition associated with widespread pain, tenderness, fatigue, and cognitive and somatic symptoms. It is thought to be a central amplification disorder of pain perception resulting from neurochemical imbalances in the central nervous system.

Despite the well-known harmful effects of alcohol, findings of previous studies suggest that alcohol may have positive effects on chronic pain and rheumatoid arthritis. Thus far, however, no studies have assessed alcohol intake in patients with FM. The objective of this study by Kim and colleagues was to evaluate the relationship between alcohol consumption and FM symptom severity and quality of life (QOL).

Study Synopsis and Perspective

Patients with FM who drink low or moderate amounts of alcohol have less severe symptoms than nondrinkers, and Mayo Clinic researchers suspect that alcohol's ability to raise γ-aminobutyric acid (GABA) levels might be the reason. However, the researchers note that the nondrinkers (more than half of the study population) might also have had more severe FM and avoided alcohol out of concern about possible interactions with FM treatment drugs, such as opioids.

"Our study demonstrates that low and moderate alcohol consumption was associated with lower fibromyalgia symptoms and better QOL [quality of life] compared to no alcohol consumption. The reasons for these results are unclear. Since recent studies have demonstrated that ...GABA levels are low in fibromyalgia, and alcohol is known to be a GABA-agonist, future studies should examine whether alcohol could have a salutary effect on pain and other symptoms in fibromyalgia," Chul H. Kim, MD, and colleagues reported online March 15 in Arthritis Research & Therapy. The research team was led by Terry H. Oh, MD, from the Department of Physical Medicine and Rehabilitation at the Mayo Clinic in Rochester, Minnesota.

The study included 946 patients in Mayo's Fibromyalgia Treatment Program from May 1, 2001, through April 30, 2004. All had confirmed FM and had completed the Fibromyalgia Impact Questionnaire (FIQ) and the Short Form-36 Health Survey (SF-36).

The patients were divided into the following self-reported alcohol consumption categories: none (no drinks/week; n = 546 [58%]), low (≤3 drinks/week; n = 338 [36%]), moderate (<3 to 7 drinks/week; n = 31 [3%]), and heavy (>7 drinks/week [n = 31] 3%). These were then examined for correlation with FM-related symptoms (FIQ scores) and QOL (SF-36 scores).

Better QOL, Less Pain

Drinkers had higher education, a lower body mass index (BMI), and a lower frequency of unemployment and opioid use than nondrinkers.

After adjusting for age, employment status, educational level, BMI, and opioid use, the researchers found significant group differences in the number of tender points, FIQ total score, FIQ subscales of physical function, work missed, job ability, and pain.

"Moderate drinkers had overall lower fibromyalgia-related symptoms, and higher QOL scores than the other groups. Pairwise comparison among the four groups showed that the moderate and low alcohol drinkers had better physical QOL than nondrinkers, with significant differences for SF-36 physical functioning, pain index, and physical component summary scores," the authors wrote.

The association between low or moderate drinking, fewer FM symptoms, and better QOL held even after adjustment for social variables and BMI. This beneficial effect was not observed in heavy drinkers.

The authors concluded, "We urge caution when generalizing the findings of this study because of the relatively small number of moderate and heavy drinkers in the study. Furthermore, we do not recommend that patients with fibromyalgia start or increase drinking for their symptoms."

"GABA, an inhibitory neurotransmitter, is low in the brain in fibromyalgia, which may go some way to explain why the nervous system reaction to pain is amplified. Alcohol binds to the GABA receptor in the central nervous system which in turn may turn down pain transmission. However, the effects of alcohol may also be due to improved mood, socialization and tension, and while moderate drinkers have fewer symptoms there are still many questions about how this happens," Dr. Oh said in a press release.

The study was supported by the National Institutes of Health (NIH) and the NIH Roadmap for Medical Research. The authors have disclosed no relevant financial relationships.

Arthritis Res Ther. 2013;15:R42. Published online March 15, 2013. Abstract

Study Highlights

  • The investigators analyzed data from 946 patients on self-reported alcohol intake.
  • Level of alcohol intake in the participants was characterized as none, low (≤ 3 drinks/week), moderate (> 3 to 7 drinks/week), or heavy (> 7 drinks/week).
  • The investigators used univariate analyses to identify potential confounders, analysis of covariance to adjust for these confounders, and Tukey HSD pairwise comparisons to calculate differences among groups.
  • Of the 946 participants, 546 (58%) did not drink alcohol; 338 (36%) had low intake; 31 (3%) had moderate intake; and 31 (3%) had heavy intake.
  • Compared with nondrinkers, drinkers had a higher educational level (P = .009), lower BMI (P = .002), lower frequency of unemployment (P <.001), and lower frequency of opioid use (P = .002).
  • After adjustment for these differences, pairwise comparison among the 4 groups showed that moderate and low alcohol drinkers had lower severity of FM symptoms than nondrinkers, based on the FIQ.
  • Differences on the FIQ included the number of tender points (P = .01), FIQ total score (P = .01), physical function (P < .001), work missed (P = .005), job ability (P = .03), and pain (P = .001).
  • Among drinkers, moderate alcohol intake was associated with lower FIQ pain scores than low and heavy intake and with a lower number of tender points than low intake, even after adjustment for confounding covariates.
  • After adjustment, pairwise comparison among the 4 groups also showed that moderate and low alcohol drinkers had better physical QOL than nondrinkers, based on the SF-36 subscales of physical functioning (P <.001), pain index (P = .002), general health perception (P = .02), social functioning (P = .02), and the physical component summary (P < .001).
  • On the basis of their findings, the study authors concluded that compared with no alcohol intake, low and moderate alcohol intake was associated with lower FM symptoms and better QOL; however, the authors stated that the reasons were unclear.
  • In light of recent studies showing that GABA levels are low in FM, and because alcohol is a GABA-agonist, they suggest that future studies should determine whether alcohol could reduce pain and other FM symptoms.
  • Limitations of this study include cross-sectional design; reliance on self-report for alcohol intake; greater opioid use among nondrinkers, suggesting that they may have had worse symptoms; relatively small number of moderate and heavy drinkers; and limited generalizability.
  • In addition, the study did not adequately assess depression and did not differentiate former drinkers from abstainers.
  • The investigators do not recommend that patients with FM start or increase drinking for their symptoms.

Clinical Implications

  • In a cross-sectional study, moderate and low alcohol drinkers with FM had lower severity of symptoms than nondrinkers, even after adjustment for covariates. The investigators suggest future studies to examine whether alcohol could reduce pain and other FM symptoms, but they do not recommend that patients with FM start or increase drinking for their symptoms.
  • Moderate and low alcohol drinkers with FM also had better physical QOL than nondrinkers. Although the reasons are unclear, possible mechanisms could include the GABA-agonist effect of alcohol.

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