2014
DOI: 10.4103/0259-1162.128919
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A case of negative pressure pulmonary edema in an asthmatic patient after laparoscopic cholecystectomy

Abstract: Negative pressure pulmonary edema is often misdiagnosed or can go clinically unrecognized by anesthesiologists. It is characterized by a markedly low intrapleural pressure which leads to exudation of fluid and red blood cells in the interstitium. Recognition of patients with predisposing factors for upper airway obstruction is important in the diagnosis which is often confused with pulmonary aspiration of gastric contents. Signs and symptoms are subtle and edema is usually self-limited. Our patient was managem… Show more

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Cited by 5 publications
(4 citation statements)
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“…The central pathogenetic mechanism is the Muller maneuverinspiratory effort against a closed glottis. During Muller maneuvre, the intrapleural pressures decrease at -50 to -100 cmH 2 O (normal baseline -5 cmH 2 O) and will result in a sudden increase of venous return associated with increased left ventricle afterload (interventricular interdependence and increased wall tension) [7][8][9][10][11]. Increased pulmonary capillary hydrostatic pressure and decreased intraalveolar pressure will result in interstitial and alveolar edema [12,13].…”
Section: Resultsmentioning
confidence: 99%
“…The central pathogenetic mechanism is the Muller maneuverinspiratory effort against a closed glottis. During Muller maneuvre, the intrapleural pressures decrease at -50 to -100 cmH 2 O (normal baseline -5 cmH 2 O) and will result in a sudden increase of venous return associated with increased left ventricle afterload (interventricular interdependence and increased wall tension) [7][8][9][10][11]. Increased pulmonary capillary hydrostatic pressure and decreased intraalveolar pressure will result in interstitial and alveolar edema [12,13].…”
Section: Resultsmentioning
confidence: 99%
“…Obstruction of the airway, which is caused by a closed glottis, contracted pharynx, and attachment of the tongue to the palate during swallowing, contributes to creating a strong negative pressure in the thoracic cavity through inspiratory effort. Intrathoracic pressure may decrease, ranging from − 50 to -100 cmH 2 O, when inspiration is attempted against a closed glottis [17].…”
Section: Discussionmentioning
confidence: 99%
“…The treatment of NPPE on extubation is to maintain a patent upper airway with jaw thrust, CPAP or Pressure Support, and administer supplemental oxygen in order to maintain adequate tissue oxygenation [5]. The differential diagnoses for perioperative hypoxemia are listed in Table 2.…”
Section: Discussionmentioning
confidence: 99%