-Restless legs syndrome is a chronic, neurological movement disorder characterized by a feeling of needing to move the legs (dysesthesia), associated with abnormal sensations like unpleasant creeping, crawling, tingling, and itching.
-Cause is unknown in most cases.
-Known causes of RLS: iron-deficiency anemia, renal failure, alcohol before sleep, thyroid disease, pregnancy, and certain medications
Anti-nausea drugs: Metoclopramide, Prochlorperazine
Anticonvulsants: Phenytoin, Droperidol
Antipsychotic drugs: Haloperidol
-The disorder seems especially common among pregnant women (1 in 5)
Symptoms & Signs
-Irresistible urge to move the limbs with creeping or crawling sensations
-Symptoms usually occur when patient is lying down or relaxing
-Abnormal sensations are temporarily alleviated by movement, stretching, or massage
-Symptoms are worse in the evening and first half of night
Diagnosis is usually made on clinical grounds alone
Search for iron deficiency: Ferritin levels should always be measured
– Stop aggravating medications, smoking, excessive alcohol consumption, coffee
-Daily moderate exercise, massage
-cognitive behavioral therapy
-RLS is treated by addressing the underlying cause
-Oral iron sulfate in patients with levels ≤ 75 mcg/L (13.4 mcmol/L)
-Other medications: Pramipexole, ropinirole, rotigotine, gabapentin, Pregabalin, Levodopa, clonazepam, temazepam, opiates
Dopaminergic therapy is the treatment of choice for severe cases but carries the risk of augmentation
Augmentation: the earlier onset or enhancement of symptoms; earlier onset of symptoms at rest; and a briefer response to medication.
RLS vs PLMS (Periodic Limb Movements of Sleep):
-RLS tends to occur during waking and at sleep onset, whereas PLMs occur during sleep.
-Patients with RLS sometimes also have PLMs, but patients with PLMs often do not have RLS.
Prognosis depends on the underlying cause
Q.Most common treatable cause of RLS: Iron deficiency
Q.What is the most common complication of long-term dopaminergic therapy? Augmentation