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Updated: Oct 31, 2025

Investigation into Deep Breathing through Measurement of Ventilatory Parameters and Observation of Breathing Patterns
Published on: September 16, 2019
Sleep-related breathing disorders in diaphragmatic pathologies
Sema Sarac1, Cuneyt Salturk2, Ozlem Oruc2
1Department of Pulmonary Medicine, Istanbul Sureyyapasa Teaching and Training Hospital, University of Health Science, Maltepe, Istanbul, Turkey. semasarac16@hotmail.com.
Objective:
The diaphragm is the most significant muscle involved in breathing. There are very few studies and cases evaluating sleep-related breathing disorders in diaphragmatic pathologies. This study compares preoperative and postoperative polysomnography (PSG) and pulmonary function test (PFT) results in diaphragmatic pathologies.
Material And Methods:
The study included 28 patients who underwent video-assisted mini-thoracotomy (VATS) due to diaphragm eventration and paralysis between January 2014 and October 2019. Pulmonary function tests (PFT) and polysomnography (PSG) were performed preoperatively in all patients, and PSG and PFT were repeated 2 months after the surgery.
Results:
Twenty-five of the 28 patients were found to have apnea-hypopnea index (AHI) ≥ 5 (89%). A significant decrease in the preoperative TST, stage 3, and REM periods was observed. Nineteen of these patients (76%) were supine isolated or supine dominant. There was a marked improvement in AHI and PFT values after the surgery. Only five patients required a PAP device.
Conclusion:
Doctors should perform PSG in patients with diaphragm pathologies, and these patients should be operated on after considering the comorbidities when OSA is detected.
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