J Korean Assoc Pediatr Surg.  2012 Dec;18(2):75-82. 10.13029/jkaps.2012.18.2.75.

Significance of Contrast Enema in One-stage Transanal Endorectal Pull-through Operation for Hirschsprung Disease

• Shin MS
• Lee MJ
• Kim MJ
• Hong YJ
• Chang HK
• Han SJ
• Oh JT

• KMID: 1427994
• DOI: http://doi.org/10.13029/jkaps.2012.18.2.75

Abstract

In one-stage transanal endorectal pull-through operation (TERPT) for Hirschsprung disease, preoperative evaluation by contrast enema (CE) is important tool in aspect of planning of surgical procedure as well as diagnosis. This study was to evaluate the significance of CE for identifying the extent of aganglionic bowel. A retrospective analysis was performed in 40 patients who underwent TERPT between 2003 and 2011. The authors reviewed the CE studies and their correlation with pathologic extent of aganglionosis. Total 66 contrast enemas were performed in 40 patients. Twenty patients underwent single CE, but 20 patients required multiple CEs. In single CE group, 17 had clear radiographic transition zone, but 3 had less definite transition zone. In multiple CE group, 17 patients who had equivocal finding in first or second CE had definite radiographic transition zone, but 3 patients of this group had less definite radiographic transition zones. Overall, 34 patients (85%) had clear radiographic transition zone by single or repeated CE. One (2.9%) out of 34 patients with clear radiographic transition zone had discordance between radiographic and pathologic transition zone. In contrast 4 (66.7%) out of 6 patients with equivocal radiographic transition zone had discordance between radiographic and pathologic transition zone. Observation of clear radiographic transition zone is important in preparation of TERPT, and repeated CE is helpful to reduce the discordance between radiographic and pathologic transition zone. Awareness of the possibility of discordance is also important if radiographic transitional zone is not clear.

Keyword

Contrast enema; Transanal endorectal pull-through; Hirschsprung's disease

MeSH Terms

Enema
Hirschsprung Disease
Humans
Retrospective Studies

Figure

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  Fig. 1 A case who required repeated contrast enema (CE). Transition zone was not observed in the first CE (A), but clear transition zone was identified in the second CE (B).

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