Restless leg syndrome: a neglected diagnosis

Area of Science:

• Neurology
• Nephrology
• Sleep Medicine

Background:

• Restless Legs Syndrome (RLS) is a neurologic disorder characterized by an urge to move the legs, often worsening at night.
• RLS is linked to nocturnal hypertension, cardiovascular events, and reduced quality of life, impacting sleep and mental well-being.
• RLS in hemodialysis patients is associated with increased mortality, highlighting the need for clinical attention.

Purpose of the Study:

• To equip physicians with essential information for recognizing and diagnosing RLS symptoms.
• To emphasize the diagnostic significance of patient-reported symptoms in RLS cases.
• To review the pathophysiology, treatment, and diagnostic criteria for RLS, particularly in the context of end-stage renal disease (ESRD).

Main Methods:

• A comprehensive literature review was conducted using PubMed, Scopus, Google Scholar, Cochrane, and Up to Date.
• Keywords included "restless legs syndrome," "sleep disorders," and "end-stage renal disease (ESRD)."
• Included studies were recent reviews, clinical trials, and cross-sectional studies adhering to International RLS Study Group (IRLSSG) criteria, focusing on demographics and renal function.

Main Results:

• Pathophysiology theories involve central nervous system dopamine imbalance and intracellular iron dysregulation.
• Pharmacological treatments include dopamine agonists, levodopa, Alpha-2-delta calcium channel ligands, opioids, anticonvulsants, benzodiazepines, and clonidine.
• Iron therapy is indicated for low serum ferritin levels, alongside non-pharmacologic interventions.

Conclusions:

• Physician attention and clinical experience are paramount for RLS diagnosis.
• Adherence to International RLS Study Group (IRLSSG) criteria is crucial for accurate diagnosis.
• Recognizing RLS symptoms is vital for improving patient outcomes, especially in those with ESRD.