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Endobronchial blocker dislodgement leading to pulseless electrical activity.
1Department of Anesthesia & Critical Care, Massachusetts General Hospital, Boston, Massachusetts.
Anesthesia and Analgesia
|May 28, 2005
Summary
An endobronchial blocker dislodged during aortic aneurysm repair caused severe air trapping and pulseless electrical activity. Promptly deflating the blocker resolved the critical event, highlighting the importance of its correct placement.
Area of Science:
- Anesthesiology
- Thoracic Surgery
- Cardiovascular Surgery
Background:
- Emergency repair of a ruptured descending aortic aneurysm required bronchial blockade for lung deflation.
- Endobronchial blockers are used to isolate lung regions during thoracic procedures.
Observation:
- During the surgery, end-tidal CO2 dropped to zero, and airway pressures increased significantly.
- These changes occurred without manipulation of aortic cross-clamps, indicating a potential complication with the endobronchial blocker.
Findings:
- The endobronchial blocker was dislodged into the trachea, causing severe air trapping.
- This malposition led to a brief episode of pulseless electrical activity, a critical hemodynamic compromise.
Implications:
- This case underscores the critical importance of secure endobronchial blocker placement during thoracic and cardiovascular surgery.
- Anesthesiologists and surgeons must be vigilant for signs of blocker dislodgement and prepared for rapid intervention.
- Prompt recognition and deflation of the dislodged blocker successfully reversed the life-threatening event.