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“I sit to sleep”—Spirometry as a clue to diagnosis

A 15‐year‐old patient presented with a 4‐month history of choking while sleeping that necessitated sleeping in a sitting position. Flow‐volume curve demonstrating fixed upper airway obstruction led to further workup and to the diagnosis of childhood achalasia as a cause of unusual symptoms and fixed upper airway obstruction. Pediatr Pulmonol. 2016;51:E13–E15. © 2015 Wiley Periodicals, Inc.