Negative pressure pulmonary edema
Revision as of 20:18, 24 March 2015 by Rossdonaldson1 (talk | contribs) (Created page with "==Background== *Forced inspiration against obstructed airway causes large negative intrathoracic pressure, leading to pulmonary edema<ref>Bhaskar B, Fraser JF. Negative pressu...")
Background
- Forced inspiration against obstructed airway causes large negative intrathoracic pressure, leading to pulmonary edema[1]
- Mostly due to postoperative laryngospasm, sudden drops in PEEP (high PEEP to manual BVM), trauma such as hanging, strangulation, foreign bodies, etc.
Clinical Presentation
- Hypoxemia (may be sudden and large - beware "fake" or "not real" SpO2), stridor, retractions, accessory muscle use, crackles/wheezes
- CXR shows diffuse interstitial and alveolar infiltrates
- CT shows preferential central/nondependent distribution of edema (as opposed to other forms of pulmonary edema)
Differential Diagnosis
Diagnosis
Management
- Relieve airway obstruction
- Vent with generous PEEP and diuretics
Disposition
See Also
External Links
References
- ↑ Bhaskar B, Fraser JF. Negative pressure pulmonary edema revisited: Pathophysiology and review of management. Saudi J Anaesth. 2011 Jul-Sep; 5(3): 308–313.