Restless legs syndrome and post polio syndrome: a case-control study

Area of Science:

• Neurology
• Sleep Medicine
• Quality of Life Research

Background:

• Post Polio Syndrome (PPS) affects individuals years after polio infection.
• Fatigue, sleepiness, and Restless Legs Syndrome (RLS) are potential complications.
• The impact of RLS on health-related quality of life (HRQoL) in PPS is not well-established.

Purpose of the Study:

• To determine the prevalence of RLS, fatigue, and daytime sleepiness in a large cohort of PPS patients.
• To compare these symptoms and their impact on HRQoL between PPS patients and healthy controls.
• To investigate the relationship between RLS severity and HRQoL in PPS.

Main Methods:

• A cohort of 66 PPS patients and 80 age/sex-matched healthy controls were recruited.
• Sleepiness was assessed using the Stanford Sleepiness Scale.
• Fatigue Severity Scale (FSS) and Short Form Health Survey (SF-36) were used to evaluate fatigue and HRQoL, respectively.
• RLS diagnosis followed standard criteria.

Main Results:

• RLS prevalence was significantly higher in PPS patients (63.6%) compared to controls (7.5%) (P < 0.0005).
• PPS patients with RLS (PPS/RLS+) reported higher FSS scores and significantly lower SF-36 scores in physical function, role, and pain domains compared to PPS patients without RLS (PPS/RLS-).
• RLS severity correlated with increased fatigue and diminished HRQoL across multiple SF-36 domains in PPS patients.

Conclusions:

• RLS is highly prevalent in PPS and significantly worsens fatigue and HRQoL.
• These findings suggest potential neuroinflammatory or neuroanatomical links between RLS and PPS.
• Further research into shared mechanisms and targeted interventions for RLS in PPS is warranted.