The pathogenesis of the low pleural fluid pH in esophageal rupture.
To determine the possible mechanisms responsible for the low pH pleural effusion associated with esophageal rupture we evaluated the following possibilities: (1) gastric acid reflux, (2) bacterial metabolism, and (3) leukocyte metabolism. Neither elimination of gastric hydrogen ion contribution by distal esophageal ligation nor elimination of bacteria with antibiotics prevented the progressive fall in pleural fluid pH after esophageal rupture. Only elimination of polymorphonuclear leukocytes from the pleural space by rendering animals leukopenic with nitrogen mustard, prevented a low pH effusion after esophageal rupture. It appears that pleural fluid leukocyte metabolism is primarily responsible for the low pH effusion associated with esophageal rupture.
Good, JT; Antony, VB; Reller, LB; Maulitz, RM; Sahn, SA
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