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Management of restless legs syndrome in chronic liver disease: A challenge for the correct diagnosis and therapy.

Management of restless legs syndrome in chronic liver disease: A challenge for the correct diagnosis and therapy.
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Moretti R, Caruso P, Tecchiolli M, Gazzin S, Tiribelli C,


Moretti R, Caruso P, Tecchiolli M, Gazzin S, Tiribelli C, (click to view)

Moretti R, Caruso P, Tecchiolli M, Gazzin S, Tiribelli C,

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World journal of hepatology 10(3) 379-387 doi 10.4254/wjh.v10.i3.379
Abstract
AIM
To investigate the association between restless legs syndrome (RLS) and well-defined chronic liver disease, and the possible therapeutic options.

METHODS
Two hundred and eleven patients with chronic liver disease, complaining of sleep disturbances, painful leg sensation and daily sleepiness, were included. Patients with persistent alcohol intake, recent worsening of clinical conditions, or hepatitis C virus were excluded. Diagnosis of RLS was suggested by the Johns Hopkins questionnaire and verified by fulfilling the diagnostic criteria by Allen. All patients were tested, both at baseline and during follow-up, with the Hamilton rating scale for depression, sleep quality assessment (PSQI), Epworth sleepiness scale (ESS), International Restless Legs Syndrome Study Group evaluation, and international RLS severity (IRLS) scoring system. Iron-free level, ferritin, folate, vitamin B12 and D-OH25 were detected. Neurological examinations and blood test occurred at the beginning of the therapy, after 2 wk, and at the 28, 75, 105, 135, 165and 205day. Regarding therapy, pramipexole or gabapentin were used.

RESULTS
Patients were moderately depressed, with evident nocturnal sleep problems and concomitant daily sleepiness. Sleep problems and involuntary leg movements had been underestimated, and RLS syndrome had not been considered before the neurological visit. All (211/211) patients fulfilled the RLS diagnostic criteria. Twenty-two patients considered their symptoms as mild, according to IRSL, but 189 found them moderate to very severe. No correlation was found between ammonium level and ESS or PSQI. Augmentation was rather precocious in our patients (135day), and more frequent (35%) than previous data (8.3%-9.1%). The dosage of dopamine agonists was found to be associated with augmentation and appears in range with the literature. Previous intake of alcohol and lower levels of vitamins have been related to the phenomenon in our study.

CONCLUSION
RLS is a common disorder, requiring rapid diagnosis and treatment. Further research is therefore fundamental.

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