Evaluation of Sleep Apnea and Cardiac Rhythm Abnormalities After Surgery Under General Anesthesia

Evolution of the Severity of Obstructive Sleep Apnea and Consequences on Cardiac Rhythm Abnormalities After Surgery Under General Anesthesia

Higher risk of cardiac and respiratory post-operative events is observed in patients with unrecognised Obstructive Sleep Apnea (OSA). The efficiency of a simple method of OSA screening by analysing ventilation with measurement of nose pressure and nocturnal hypoxemia (oxygen desaturation index) will be assessed. These sleep respiratory analyses will be compared with the research of arrhythmia, in order to show if they are linked to the hypoxemia events.

Aggravation of nocturnal respiratory disorder and higher incidence of cardiac and respiratory postoperative complications will be assessed in OSA patients.

Inclusion Criteria:

• orthopaedic, urologic, vascular, digestive surgery
• under general anaesthesia or sedation
• age > 45 years old
• STOP-BANG score>3

Exclusion Criteria:

• Head and neck surgery, planned prolonged mechanical ventilation after surgery (>24h)
• Severe COPD
• Post-operative ICU planned
• Diagnosed OSA or other sleep disorder breathing