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Published on: April 17, 2019
Correlation between functional outcomes and postoperative pelvic magnetic resonance imaging in children with
Venkat Shankar Raman1, Sandeep Agarwala1, Veereshwar Bhatnagar1
1Department of Pediatric Surgery, All India Institute of Medical Sciences, New Delhi, India.
Insights
Postoperative soiling and constipation are common in children with anorectal malformation (ARM). Pelvic MRI can identify local abnormalities linked to poor stooling outcomes, particularly after abdominoperineal pull-through (APPT) surgery.
Area of Science:
- Pediatric surgery
- Medical imaging
- Gastroenterology
Background:
- Postoperative soiling and constipation persist as challenges in children with anorectal malformation (ARM) despite surgical advancements.
- Factors contributing to poor outcomes include misplaced bowel, hypoplastic sphincters, and an obtuse anorectal angle.
Purpose of the Study:
- To compare stooling outcomes, anomaly types, and surgical procedures with postoperative pelvic magnetic resonance imaging (MRI) findings in operated children with ARM.
Main Methods:
- A cross-sectional study included 33 operated children with ARM (age ≥3 years, follow-up ≥2 years).
- Data on ARM subtypes, surgical procedures, and functional outcomes were collected using the Krickenbeck classification.
- All participants underwent pelvic MRI.
Main Results:
- Local abnormalities were detected in 66% of patients on pelvic MRI, with 34% showing spinal abnormalities.
- Poorer stooling outcomes were twice as common in children with local pelvic MRI abnormalities.
- The highest incidence of local abnormalities (P = 0.0001) was observed in patients who underwent abdominoperineal pull-through (APPT).
Conclusions:
- Pelvic MRI is a valuable tool for evaluating operated children with ARM experiencing poor stooling outcomes.
- Local abnormalities are most frequently identified in patients treated with the APPT procedure.
Background:
Though the outcomes in operated children with anorectal malformation (ARM) have greatly improved, postoperative soiling and constipation remain major issues. Among the various factors described for poor outcomes; misplaced bowel, hypoplastic sphincters and obtuse anorectal angle bear special mention. The aim of this study was to compare the stooling outcomes, type of anomalies and surgical procedure with postoperative pelvic magnetic resonance imaging (MRI).
Materials And Methods:
This was a cross-sectional study involving operated children of ARM who had at least 2 years of follow-up, and who were at least 3 years of age. The subtypes of ARM, surgical procedures, and functional outcomes were documented using the Krickenbeck classification. All children were subjected to a pelvic MRI.
Results:
Thirty-three eligible children were part of this study. Twenty-two patients underwent posterior sagittal anorectoplasty, seven patients underwent abdominoperineal pull-through (APPT) and four patients underwent perineal operations. Local abnormalities were present in 66% patients, and 34% had abnormalities of the spine detected on MRI. Poorer stooling outcomes were twice as common in children with local pelvic MRI abnormalities as compared to asymptomatic children. The highest incidence of local abnormalities were seen in patients treated with APPT (P = 0.0001). No significant difference in the pelvic MRI was seen among children who were constipated and those who had soiling.
Conclusion:
MRI is a useful imaging modality in operated children of ARM with poor stooling outcomes. Local abnormalities were the most common in children undergoing abdominoperineal pull-through procedure.
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