A prospective study of Willis-Ekbom disease/restless legs syndrome during and after pregnancy


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Neyal A., Benbir Şenel G., Aslan R., Nalbantoglu M., Acikgoz S., Yilmaz N., ...More

SLEEP MEDICINE, vol.16, no.9, pp.1036-1040, 2015 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 16 Issue: 9
  • Publication Date: 2015
  • Doi Number: 10.1016/j.sleep.2015.01.026
  • Journal Name: SLEEP MEDICINE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1036-1040
  • Keywords: Willis-Ekbom disease, Pregnancy, Ferritin levels, Delivery, RESTLESS LEGS, RISK, PREVALENCE, EPIDEMIOLOGY, DOPAMINE, WOMEN
  • Kütahya Health Sciences University Affiliated: No

Abstract

Objectives: Willis–Ekbom disease/restless legs syndrome (WED/RLS) is the most common sleep-related movement disorder in pregnancy. We designed a prospective longitudinal study to investigate the cor- relates of WED/RLS during and after pregnancy.
Design: A total of 138 pregnant women with WED/RLS and a control group of 251 age-matched preg- nant women were enrolled prospectively. A questionnaire was administered during a face-to-face interview at first evaluation during pregnancy and three months after delivery.

Results: Among all women in the first trimester, 15.6% were diagnosed with WED/RLS, whereas 32.8% of those in the second trimester and 38.8% of those in the third trimester were diagnosed with WED/ RLS (p = 0.032). In regression analysis, later gestational age [p < 0.001; odds ratio (OR) 1.054] and previous history of WED/RLS (p = 0.001; OR 2.795) were positively correlated with the presence of WED/RLS, while ferritin levels (p = 0.001; OR 0.956) were negatively correlated with the presence of WED/RLS. Ferritin levels were also negatively correlated with the International RLS Study Group severity index (p = 0.041). Forty-eight patients (34.8%) experienced WED/RLS symptomatology after delivery. The ferritin levels were lower, and the mean number of pregnancies was higher, in women with residual WED/RLS (p = 0.008). Conclusion: Our survey showed that WED/RLS was more common in the second and third trimesters. Emergence of WED/RLS during the second trimester was strongly associated with residual WED/RLS. Lower ferritin levels were associated with both WED/RLS in pregnancy and residual WED/RLS after delivery. A higher number of pregnancies were also associated with a greater likelihood of having residual WED/ RLS after delivery.