A 13-year-old male patient with intermittent asthma and joint hypermobility presented to the ED in acute hypoxemic respiratory distress. He reported experiencing cough, increased work of breathing, and worsening chest pain for 3 days before presentation. He also reported fatigue and decreased appetite for 2 weeks. He had no known fever, myalgias, or recent weight loss. His medical history included two hospitalizations during early childhood for viral respiratory illnesses, one of which required intubation at 8 months of age. He had a gastrostomy tube placed shortly after his hospitalization because of failure to thrive secondary to aspiration based on a swallow study. His weight gain and growth improved with adequate nutrition, and his gastrostomy tube was removed at 2 years of age. His newborn screen, which included immunoreactive trypsinogen, was normal. He was noted to have hypermobile joints on physical examination at a clinic visit in childhood, but his examination results were not concerning for a hypermobility syndrome, and further diagnosis was not pursued. His parents endorsed that he has been a "healthy child" overall other than the occasional cough, which was attributed to asthma. His lifestyle was described as sedentary; he did not play any sports or have any unusual hobbies. He did not take any daily medications and no environmental exposures were reported. There was no family history of pulmonary, autoimmune, or connective tissue disease.
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