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Related Concept Videos

Sleep Apnea01:21

Sleep Apnea

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Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
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Obesity01:24

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The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
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Other Pulmonary Disorders01:17

Other Pulmonary Disorders

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Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
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Endotracheal Tube Extubation

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Endotracheal tube extubation is a critical procedure in weaning patients from mechanical ventilation. It involves physically removing the oral or nasal endotracheal (ET) tube, marking the final step in liberating a patient from ventilatory support.
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Chronic Obstructive Pulmonary Disease01:22

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COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
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Barrett Esophagus-I: Introduction

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Barrett's esophagus is a medical condition where the esophageal mucosa is significantly damaged by stomach acid or other digestive fluids, often due to long-term exposure associated with gastroesophageal reflux disease (GERD). In GERD, a weakened or abnormally relaxed lower esophageal sphincter allows stomach acid to flow persistently into the esophagus.
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Related Experiment Video

Updated: Jul 3, 2025

Drug-Induced Sleep Endoscopy DISE with Target Controlled Infusion TCI and Bispectral Analysis in Obstructive Sleep Apnea
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Factors Associated with Persistent Obstructive Sleep Apnea After Bariatric Surgery: A Narrative Review.

Nathalie Demaeyer1, Marie Bruyneel1,2

  • 1Department of Pneumology, CHU Saint-Pierre, Université Libre de Bruxelles, Brussels, Belgium.

Nature and Science of Sleep
|February 13, 2024
PubMed
Summary

Obstructive sleep apnea (OSA) often persists after bariatric surgery, with remission rates varying widely. Factors like age, pre-operative OSA severity, and type 2 diabetes may influence OSA persistence post-surgery.

Keywords:
bariatric surgerygastric bypassgastric sleeveobstructive sleep apneapolygraphypolysomnography

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Area of Science:

  • Bariatric Surgery and Sleep Medicine
  • Obstructive Sleep Apnea (OSA) Research
  • Obesity and Metabolic Health

Background:

  • Obstructive sleep apnea (OSA) affects 45-70% of bariatric surgery candidates.
  • Weight loss post-bariatric surgery does not guarantee OSA remission, indicating other contributing factors.
  • Understanding predictors of persistent OSA is crucial for managing obese patients.

Purpose of the Study:

  • To review current literature on factors predicting obstructive sleep apnea (OSA) persistence after bariatric surgery.
  • To synthesize findings from studies assessing pre- and post-operative OSA in bariatric populations.

Main Methods:

  • Systematic review of 6 retrospective and prospective studies involving 1302 bariatric patients with OSA.
  • Inclusion criteria: >50 patients, pre- and post-operative OSA assessment via poly(somno)graphy (PG/PSG).
  • Analysis of patient demographics (BMI, age, sex) and surgical/diagnostic parameters.

Main Results:

  • OSA remission rates varied significantly (26-76%) at 11-12 months post-surgery.
  • Potential predictors of OSA persistence included age, pre-operative OSA severity, weight loss proportion, and type 2 diabetes (T2D), though findings were inconsistent.
  • High loss to follow-up may underestimate true OSA remission rates.

Conclusions:

  • Bariatric surgery offers variable OSA remission; several factors beyond weight loss influence persistence.
  • Age, initial OSA severity, T2D, and weight loss magnitude are implicated but require further research for consistency.
  • Additional factors like fat distribution, ethnicity, and sleep position warrant investigation in future multicentric studies.