Podcast # 474: Obesity Hypoventilation Syndrome
Emergency Medical Minute · medicalminute
May 29, 20199m 16s
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Show Notes
Author: Peter Bakes, MD
Educational Pearls:
- The differential diagnosis for pedal edema includes issues in the heart, kidney, and liver
- Obesity hypoventilation syndrome (OHS) is an important and common cause of right heart failure. Nighttime hypoventilation leads to pulmonary hypertension, causing right heart strain followed by right heart failure
- OHS criteria includes obesity, sleep disordered breathing, and alveolar hypoventilation (PaCO2 > 45 mmHg)
- The causes of OHS are multifactorial, and include mechanical problems with breathing and hormonal changes
References
Balachandran JS, Masa JF, Mokhlesi B. Obesity Hypoventilation Syndrome Epidemiology and Diagnosis. Sleep Med Clin. 2014;9(3):341–347. doi:10.1016/j.jsmc.2014.05.007
Summarized by Will Dewispelaere, MS3 | Edited by Erik Verzemnieks, MD