Background: Chronic abdominal pain (CAP) or recurrent abdominal pain is common in childhood and is rarely associated with organic disease. With modern diagnostic technology, new organic abnormalities are found in children with CAP. Thus far a causal relation between these abnormalities and CAP has not been established. The additional prognostic value of extensive testing of children with CAP is a subject of debate. Objectives: To investigate how often abdominal pain persists in children with CAP and to investigate whether medical tests such as laboratory tests, imaging, and endoscopy have additional prognostic value to history taking and clinical examination. Materials and Methods: A systematic search was conducted in MEDLINE, EMBASE, and PsycINFO for prospective cohort studies published from 1960 until October 2005. The most common medical key words for CAP were used in our search strategy. The methodological quality of studies was determined. Clinical heterogeneity between studies was analyzed. The percentages of children with abdominal pain after follow-up were pooled. Results: The search yielded 2620 citations, of which 18 studies met the inclusion criteria. In total, 1331 children were followed up for 5 years (median, range 1-29 years). In total, 29.1% (95% CI 28.1-30.2) of patients with CAP had abdominal pain after follow-up. The prognosis of CAP diagnosed clinically was similar to that diagnosed after additional medical testing. Conclusions: CAP persisted in 29.1% (95% CI 28.1-30.2) of children. In the absence of alarming symptoms, additional diagnostic testing did not influence the prognosis of CAP.

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Journal of Pediatric Gastroenterology and Nutrition
Erasmus MC: University Medical Center Rotterdam

Gieteling, M., Bierma-Zeinstra, S., Passchier, J., & Berger, M. (2008). Prognosis of chronic or recurrent abdominal pain in children. Journal of Pediatric Gastroenterology and Nutrition, 47(3), 316–326. doi:10.1097/MPG.0b013e31815bc1c1