TOPIC: Chest Infections TYPE: Medical Student/Resident Case Reports INTRODUCTION: Heartburn is notorious for causing a chronic cough that produces a negative pulmonary workup. In severe gastroesophageal reflux disease (GERD) the stakes are higher, with complications causing aspiration pneumonia and chemical pneumonitis leading to interstitial lung disease (ILD). We present a case with a reversed clinical picture - clinically significant pulmonary findings suggesting severe GERD without being able to confirm aspiration. CASE PRESENTATION: A 61 year old gentleman with refractory GERD and restrictive lung disease requiring home oxygen was admitted to the hospital for dyspnea and hypoxia. The patient was hypoxic on presentation, oxygen saturation in the 60s on 2L, only improving to 85% with non-invasive ventilation, thus leading to intubation. Chest x-ray revealed bibasilar hazy infiltrates, right greater than left. Tracheal aspirate culture grew E. coli, diagnosing the patient with aspiration pneumonia, which was then treated appropriately. This was the patient's ninth episode of aspiration pneumonia in the last twelve months, several of these requiring hospitalization. Past medical history included laparoscopic sleeve gastrectomy for peptic ulcer disease ten years ago with symptoms persisting and failing proton pump inhibitor therapy and H2 therapy. On a recent hospitalization for his recurrent pneumonias, workup included multiple speech evaluations and modified barium swallow concerning for but not confirming aspiration. Esophagogastroduodenoscopy discovered a four centimeter hiatal hernia and was negative for Barrett's esophagus. pH monitoring revealed elevated acid exposure time (29.5% vs normal <4.5%). Patient was referred to surgery for further treatment options. He was cautioned that his lung problems would not resolve until the acid reflux was controlled. DISCUSSION: This case exemplifies multiple lung complications of severe, uncontrolled GERD. While multiple swallow evaluations could not reveal aspiration, it is reasonable to conclude the patient nevertheless was aspirating frequently, particularly at night. These symptoms were likely exacerbated by sedating medications he was taking, like quetiapine. Additionally, while GERD is not uncommon after gastric modification, there are only a few cases described in the literature that present severely enough to cause aspiration pneumonia. A small hiatal hernia together with the gastric sleeve, both innocent enough on their own, caused a synergy leading to the severe symptoms this patient experienced. Without surgical intervention, it is unlikely the pneumonitis and pneumonia will improve. CONCLUSIONS: In patients with recurrent pneumonia, acid reflux should be high on the differential, even in the absence of evidence of aspiration. REFERENCE #1: Taylor JK, Fleming GB, Singanayagam A, Hill AT, Chalmers JD. Risk factors for aspiration in community-acquired pneumonia: analysis of a hospitalized UK cohort. Am J Med. 2013 Nov;126(11):995-1001. DISCLOSURES: No relevant relationships by Samapon Duangkham, source=Web Response No relevant relationships by Ricardo Franco, source=Web Response No relevant relationships Added 12/03/2020 by Ebtesam Islam, source=Web Response, value=Consulting fee Removed 04/30/2021 by Ebtesam Islam, source=Web Response No relevant relationships by Haitem Mezughi, source=Web Response No relevant relationships by Alexandra Wichmann, source=Web Response
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