Blood Pressure and Obstructive Sleep Apnea

Taipei Veterans General Hospital

Status

Completed

Conditions

The Effects of Obstructive Sleep Apnea on Blood Pressure Measurement

Study type

Observational

Funder types

Other

Identifiers

NCT06027424

2022-07-013CC

Details and patient eligibility

About

Bidirectional and causal relationship exists between obstructive sleep apnea (OSA) and hypertension in a dose-response manner, independent of confounding variables such as age, smoking, and body mass index. OSA is conventionally diagnosed and graded by apnea-hypopnea index (AHI). The relationship between AHI and changes of blood pressure deserves further investigation.

Full description

Approximately 50% of patients with obstructive sleep apnea (OSA) have hypertension; up to 30% of patients with hypertension have OSA, and the prevalence is even higher in those of resistant hypertension. OSA is conventionally diagnosed and graded by apnea-hypopnea index (AHI). This retrospective study aimed to determine if OSA severity and AHI have effect on blood pressure measurements and the nocturnal changes following an overnight sleep.

Enrollment

2,037 patients

Sex

All

Ages

18+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

(1). Individuals who underwent full-night polysomnography at Taipei VGH for symptoms related to obstructive sleep apnea, such as snoring and daytime somnolence; (2). Feasibility to measure BP via wrist monitors; (3). Confirmation of wakefulness through electroencephalography.

Exclusion criteria

(1). Failure to measure BP via wrist monitors; (2). Age younger than 18 years; (3). Sleep efficiency less than 50%; (4). Central sleep apnea ≥ 50%