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Endoscopy To Evaluate Gastrointestinal Bleeding in Marathon Runners

Andrew E. Schwartz, MD; Arvydas Vanagunas, MD; and Perry L. Kamel, MD
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Requests for Reprints: Arvydas Vanagunas, MD, 680 North Lake Shore Drive, Suite 822, Chicago, IL 60611.

Current Author Addresses: Dr. Schwartz: 795 East Marshall, Suite 102-C, West Chester, PA 19380.

Drs. Vanagunas and Kamel: 680 North Lake Shore Drive, Suite 822, Chicago, IL 60611.

Ann Intern Med. 1990;113(8):632-633. doi:10.7326/0003-4819-113-8-632
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This excerpt has been provided in the absence of an abstract.

With the increasing popularity of long-distance running in the United States, medical complications are being recognized more frequently. Although orthopedic problems predominate, gastrointestinal problems are frequent. Symptoms of abdominal cramping, rectal urgency, diarrhea, nausea, vomiting, and rectal bleeding certainly occur (1-4), and occult gastrointestinal bleeding has been well described (5-9). The actual cause of these disorders is unknown; however, and we used endoscopy to evaluate prospectively the source of gastrointestinal blood loss in marathon runners.

Study Design and Methods: Of 9000 runners in the 1988 Chicago Marathon, 103 volunteered to participate in the study. The 41 runners who completed the


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