Study on the characteristics in severe obese patients with suspected sleep-disordered breathing in Japan

Study on the characteristics in severe obese patients with suspected sleep-disordered breathing in Japan - Study on the phenotype of sleep-disordered breathing in severe obese patients in Japan

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000041797

Enrollment

Registered

2020-09-15

Start date

2020-09-15

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Sleep-disordered breathing

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Severe obesity patients (Body mass index(BMI) >= 35kg/m2) 2. Patients with suspected sleep apnea

Exclusion criteria

Exclusion criteria: Patients with 1. uncontrollable congestive heart failure 2. psychiatric disease under treatment 3. respiratory failure on oxygen 4. undesirable patients judged by doctors and 5. patients without informed consents

Design outcomes

Primary

Measure	Time frame
symptoms, physical findings, lung function, biochemistry, cardiac echo (if possible), polysomonographic findings, and the prevalence of obesity hypoventilation, sleep hypoventilation and typical obstructive sleep apnea.	—

Secondary

Measure	Time frame
CPAP level, adherence, the change of sleepness(ESS), and drop-out rate	—

Countries

Japan

Contacts

Public ContactHideaki Nakayama

Neuropsychiatric Research Institute Japan Somnology Center

hidenaka@tokyo-med.ac.jp0334603033

Outcome results