Influence of the Sleep Pattern in Patients Submitted to Bariatric Surgery

Study Overview
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Brief Summary
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The present study has a prospective, longitudinal and observational character, will be performed with patients attending a private clinic specialized in the treatment of obesity and bariatric surgery. Patients to be analyzed should have a medical indication for bariatric surgery.

Detailed Description
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The patients will be selected for ten months and will be monitored for 12 months there are preoperative period, 3 months, 6 months and 12 months after surgery. Anthropometrical evaluation, biochemistry, polysomnography and sleep questionnaire (Epworth and Psqi) and midpoint sleep questionnaires will be performed to classify the chronotype for sleep pattern evaluation.

Official Title
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Influence of the Sleep and Chronotype Pattern in Metabolic, Anthropometric and Biochemical Responses in Patients Submitted to Bariatric Surgery

Conditions
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Bariatric Surgery Candidate

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Agree to participate in the study and sign the Informed Consent Form (EHIC) Patients submitted to By-pass or Sleeve bariatric surgery or Endossleve Patients with BMI above 35 kg / m². Over the age of 18 and up to 60 years. Exclusion Criteria: Failure to provide the information necessary for the development of the study. Patients on sleeping pills. Patients with renal or HIV positive failure.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Bariatric Surgery patients<br>Patients attending a private clinic specialized in the treatment of obesity and bariatric surgery. Patients to be analyzed should have a medical indication for bariatric surgery. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| polysomnography | Polysomnography is a multi-parametric test used in the study of sleep and as a diagnostic tool in sleep medicine. This test will be realized in the preoperative period. | 1 year | 
| Epworth sleepiness Scale | Epworth scale is a questionnaire to evaluated the sleepiness. A value above seven is considered high sleepiness level. | 1 year | 
| Pittsburgh Sleep Quality Index | Pittsburgh Sleep Quality Index is a questionnaire to evaluated sleep quality. | 1 year | 
| Midpoint point of sleep | Midpoint point of sleep is used to classify the individual's chronotype. | 1 year | 
| weight | Anthropometric assessment will be evaluated using weight (kg) | 1 year | 
| height | Anthropometric assessment will be evaluated using height (m) | 1 year | 
| BMI | Anthropometric assessment will be evaluated using BMI (kg/m²), | 1 year | 
| arm circumference | Anthropometric assessment will be evaluated using arm circumference (cm) | 1 year | 
| neck circumference | Anthropometric assessment will be evaluated using neck circumference (cm) | 1 year | 
| waist circumference | Anthropometric assessment will be evaluated using waist circumference (cm) | 1 year | 
| hip circumference | Anthropometric assessment will be evaluated using hip circumference (cm) | 1 year | 
| electrical bioimpedance | Anthropometric assessment will be evaluated using electrical bioimpedance | 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Sleep, Bariatric Surgery, Chronotype