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Year : 2015  |  Volume : 5  |  Issue : 2  |  Page : 88-95

Nonfluoroscopic well-tempered pressure augmented distal colostogram in high-type anorectal malformation: Our experience

1 Department of Paediatric Surgery, Sawai Man Singh Medical College, Jaipur, India
2 Department of Paediatric Surgery, National Institute of Medical Sciences, Jaipur, India
3 Department of Paediatric Surgery, Adesh Medical College, Bhatinda, Punjab, India

Correspondence Address:
Dr. R Gupta
202 A, A3 block, Kamal Apartment - 2, Banipark, Jaipur - 302 004, Rajasthan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-9596.158823

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Background: Accurate imaging of rectourethral fistula is essential for optimal surgical management of infants with high-type anorectal malformation (ARM). The aim of this study was to study the role of nonfluoroscopic well-tempered pressure-augmented distal colostogram in high-type ARM in demonstrating rectourinary fistula, bladder anomalies, and for the presence of vesicoureteral reflux (VUR). Patients and Methods: We present a prospective study of 10 male infants who underwent a diverting colostomy in the neonatal period from January 2011 to December 2012. Our method of performing a colostogram is similar to conventional colostogram, but involves (a) meticulous bowel preparation preoperatively, ensuring that while doing the last distal colostomy wash before colostogram there is passage of clear saline from the urethral meatus to establish the presence of rectourinary fistula; (b) nonfluoroscopic study (c) performed with gentle and sustained pressure of contrast media, maintained over the period of the investigation; (d) bladder is completely filled with contrast media through rectourinary fistula and it is confirmed clinically; and (e) radiographic films in addition are taken in the micturating phase. Results: Rectourinary fistula was demonstrated in all (100%) cases. Rectoprostatic urethral fistula was present in three (30%) infants, rectobulbar urethral fistula in six (60%) patients, and one (10%) infant had type 4 congenital pouch colon (CPC) with colovesical fistula. Also three (30%) patients demonstrated unilateral primary vesicoureteral reflux (VUR), which was previously undiagnosed in all of them, as micturating cystourethrogram (MCU) was not attempted. Conclusions: Our study confirmed the level of anomaly and accurately demonstrated the type of fistula in all patients. It also detected the undiagnosed VUR in three (30%) cases. It obviated the need for a MCU.

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