Biomechanisms Underlying Obstructive Sleep Apnea Remission after Weight Loss Surgery

First published in February 2022 – Last edited in September 2022 by Luka Tunjic. © All rights reserved.

Obstructive sleep apnea remission following bariatric surgery: a national registry cohort study – “Conclusion: This study demonstrated that metabolic surgery results in OSA remission in the majority of patients with obesity.” … ” Younger age, lower BMI preprocedure, greater %EWL and the use of LSG or LRYGB positively predicted OSA remission.”

National Library of Medicine,LRYGB%20positively%20predicted%20OSA%20remission.

Impact of bariatric surgery on obstructive sleep apnoea–hypopnea syndrome in morbidly obese patients (National Library of Medicine) – “One of the significant observations in our study was that the improvement in OSA was evident very early after surgery much before the desired weight loss.” …

National Library of Medicine

… “the magnitude of weight loss by 3 weeks would suggest weight loss alone is not a major contributor.”

National Library of Medicine

Improvement in breathing biomechanics causes OSA remission and also forces posture and locomotion improvement. Improvement in posture and locomotion causes weight loss. Improvement in OSA is noticeable immediately after surgery, but the weight loss to notice takes more time.

“Few patients in our study had evidence of non-improvement or worsening of AHI despite good weight loss after surgery.” …

National Library of Medicine

The reason for no remission or improvement of OSA after bariatric surgery is that there is no improvement in breathing biomechanics. In some patients of bariatric surgery, the postoperative side effects are severe, and the patient is forced to prolonged resting in, primarily by lying in bed. Weight loss due to body mass loss during prolonged bed rest is not caused by decreased food intake but by physical inactivity. Despite the weight loss, there is no improvement in breathing biomechanics.

Below are links to the authors’ research work on Type 1 Diabetes from 2004 through 2012.

  1. Postural Profile of People with Type 1 Diabetes –
  2. Musculoskeletal Profile of Normal Weight People without and with T1D –
  3. A Link Between Occupation and Type 1 Diabetes –
  4. Weight Loss and Type 1 Diabetes –
  5. Obesity and Type 1 Diabetes –
  6. Insulin Therapy and Weight Gain –
  7. Spontaneous Remission of Type 1 Diabetes –
  8. Post-exercise Hypoglycemia –
  9. What Stimulates the Pancreas to Work Properly –
  10. Type 1 Diabetes in American Indians, Alaska Natives –
  11. Chiropractic Pioneering Research into Type 1 Diabetes –

This page was last time updated on August 25, 2022. I hope my presentation is understandable. Still, I think that can be better explained, and I will continue to work on this subject. If you find this interesting, please revisit this page because it will be from time to time updated.

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