TY - CHAP M1 - Book, Section TI - Gastrointestinal Bleeding in Infants and Children A1 - Reid, Sarah M. A2 - Tintinalli, Judith E. A2 - Stapczynski, J. Stephan A2 - Ma, O. John A2 - Yealy, Donald M. A2 - Meckler, Garth D. A2 - Cline, David M. PY - 2016 T2 - Tintinalli’s Emergency Medicine: A Comprehensive Study Guide, 8e AB - GI bleeding varies in its epidemiology and presentation depending on whether it originates from the upper or lower GI tract. Upper GI (UGI) bleeding is bleeding proximal to the ligament of Treitz, whereas lower GI (LGI) bleeding originates distal to this ligament. UGI bleeding is a relatively uncommon presentation in pediatrics, with one population-based survey reporting an incidence of 1 to 2 per 10,000 children/year.1 LGI bleeding is more common, but most cases are benign and self-limited.2 In one study, LGI bleeding constituted the chief complaint of 0.3% of children presenting to a pediatric ED, but only 4.2% of these patients had bleeding considered to be life-threatening.3 SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/10 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1121509757 ER -