Sedation during upper gastrointestinal endoscopy may lead to respiratory events not only during the procedure but also in the early recovery period. Although most hypoxemic episodes are considered transient, their frequency, duration, and clinical consequences during recovery remain insufficiently defined. This prospective observational study aims to evaluate the incidence, duration, and clinical impact of recovery-period hypoxemia following sedated upper gastrointestinal endoscopy. Hypoxemia is defined as SpO₂ \<90% lasting ≥10 seconds. Associated respiratory events and potential risk factors will be analyzed without altering routine clinical practice.
Study Type
OBSERVATIONAL
Enrollment
100
Routine upper gastrointestinal endoscopy performed under anesthesiologist-administered sedation. No experimental intervention is applied; the study prospectively observes respiratory events during the recovery period as part of standard clinical care.
Istinye Üniversity
Istanbul, Merkez Mahallesi, Turkey (Türkiye)
Recovery-Period Respiratory Events
Occurrence of respiratory events during the recovery period following sedated upper gastrointestinal endoscopy, defined as at least one of the following: SpO₂ \<90% lasting ≥10 seconds Requirement for airway maneuver (jaw-thrust, chin-lift, OPA/NPA, mask ventilation) Escalation or re-initiation of supplemental oxygen
Time frame: From end of procedure (scope-out) until discharge from recovery unit
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