Related Experiment Videos
Periodic leg movements in sleep in essential hypertension
J Espinar-Sierra1, A Vela-Bueno, M Luque-Otero
1Sleep Unit, Hospital Universitario San Carlos, Madrid, Spain.
Psychiatry and Clinical Neurosciences
|June 1, 1997
Summary
Periodic leg movements in sleep (PLMS) are common in essential hypertension patients, affecting over 18%. Their prevalence correlates with hypertension severity and age, but they rarely cause sleep arousals.
Area of Science:
- Cardiology
- Sleep Medicine
- Neurology
Background:
- Essential hypertension is a prevalent cardiovascular condition.
- Sleep disturbances are increasingly recognized as potential comorbidities in hypertensive patients.
- Periodic leg movements in sleep (PLMS) are characterized by repetitive limb movements during sleep.
Purpose of the Study:
- To investigate the prevalence of PLMS in individuals with essential hypertension.
- To explore the relationship between PLMS and hypertension severity, age, and sleep characteristics.
Main Methods:
- Polysomnography was used to assess PLMS in 91 subjects with essential hypertension.
- Data analysis included correlation with hypertension severity and age.
- Sleep stages and EEG arousals associated with PLMS were analyzed.
Main Results:
- Over 18% of hypertensive subjects exhibited PLMS, a significantly higher prevalence than in control groups.
- PLMS occurrence was positively correlated with both hypertension severity and patient age.
- PLMS were more frequent in early sleep hours and during lighter sleep stages (1 and 2).
- Only 17% of PLMS events were associated with EEG arousals, indicating minimal disruptive effect.
Conclusions:
- PLMS are a common finding in patients with essential hypertension.
- The presence and frequency of PLMS appear linked to hypertension severity and aging.
- While common, PLMS in this population do not seem to be indicative of a specific sleep disorder.