Incidence and risk factors associated with retrorenal colon

  • Kittipong Chaowarat Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
  • Sermsin Sindhubodee Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
  • Vorapot Choonhaklai Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
  • Viroj Chittchang Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
  • Somkiat Pumpaisanchai Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
  • Nattapong Wongwattanasatien Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
  • Tanet Thaidumrong Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
  • Chawawat Kosrisirikul Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
  • Matchima Huabkong Division of Urology, Department of Surgery, Rajavithi Hospital, Bangkok, Thailand
Keywords: Percutaneous nephrolithotomy, Retrorenal colon, Colon injury

Abstract

Objective: The aim of this research was to evaluate the incidence rate of retrorenal colon in Thai patients and the risk factors for retrorenal colon.

Material and method: This research was an observational study .Data used therein was collected from the review of CT whole abdomen performed to patients from Rajavithi hospital with age of 15 years or older, from 1 March 2016 – 31 December 2016.

Result: The total number of patients undergoing CT scan reviews was 1,010 (male/female= 49.2%/ 50.8%)Retrorenal colon were found in 73 patients(7.23%) ,including 32 patients (3.16%) on the right side, 50 patients (4.95%) on the left side, and 9 patients (0.89%) on both side. Retrorenal colons were found more on the left side than on the right side (5.0% v.s. 3.2%,p=0.04). Age had no impact on retrorenal colon . BMI had statistically significant impact (p<0.01) on retrorenal colon incidence, 33.8% in patients with underweight (BMI<18.5), 13.4% in patients with normal weight (BMI18.5-22.9), 0.9% in patients with overweight (BMI23-24.9), and 0.26% in patients with obesity (BMI>25).

Conclusion: CT scanning before PCNL in order to diagnose retrorenal colon is advantage to persons with low BMI, especially when accessing at the lower pole of the kidney is needed.  

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Published
2018-12-05
How to Cite
Chaowarat, K., Sindhubodee, S., Choonhaklai, V., Chittchang, V., Pumpaisanchai, S., Wongwattanasatien, N., Thaidumrong, T., Kosrisirikul, C., & Huabkong, M. (2018). Incidence and risk factors associated with retrorenal colon. The Thai Journal of Urology, 39(2), 20-27. Retrieved from https://he02.tci-thaijo.org/index.php/TJU/article/view/114996
Section
Original article

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