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A Novel and Simple Modification for Management of Distal Ureter During Laparoscopic Nephroureterectomy Without Patient Repositioning: A Bulldog Clamp Technique and Description of Modified Port Placement.
Journal of Endourology 2016 Februrary
BACKGROUND AND PURPOSE: To describe a novel and pure laparoscopic approach using a custom-made bulldog clamp with modified port placement for management of distal ureter during laparoscopic nephroureterectomy.
PATIENTS AND METHODS: Between October 2013 and December 2014, 31 patients found to have upper tract urothelial carcinoma were treated using this technique. After finishing a standard laparoscopic transperitoneal nephrectomy in a 45° to 60° recumbent position, an additional 12-mm trocar was inserted at the lower abdomen to allow the surgeon to continue dissecting the ureter caudally toward the bladder wall without repositioning the patient. The intramural ureter was separated from the surrounding detrusor muscle and down to the bladder mucosa, until a tent-shaped bladder cuff and intramural ureter could be formed by retraction in the superior and lateral directions. Then, a custom-made laparoscopic bulldog clamp was placed at the bottom of the tent-shaped structure to prevent urine spillage, and the bladder was closed by two-layer running closure using a barbed suture.
RESULTS: All surgeries were completed uneventfully. The mean operative time and estimated blood loss were 146.6 minutes and 47.3 mL, respectively. The median duration of the postoperative hospital stay was 6 days. No complications were noted. There were no positive margins in any specimen. No patients experienced stone formation or local or bladder recurrence during the 10.5-month follow-up period.
CONCLUSIONS: Our novel technique fully replicates the open excision technique and conforms to the strictest oncologic principles while avoiding patient repositioning and the use of staplers (EndoGIA or Hemolock) to prevent stone formation.
PATIENTS AND METHODS: Between October 2013 and December 2014, 31 patients found to have upper tract urothelial carcinoma were treated using this technique. After finishing a standard laparoscopic transperitoneal nephrectomy in a 45° to 60° recumbent position, an additional 12-mm trocar was inserted at the lower abdomen to allow the surgeon to continue dissecting the ureter caudally toward the bladder wall without repositioning the patient. The intramural ureter was separated from the surrounding detrusor muscle and down to the bladder mucosa, until a tent-shaped bladder cuff and intramural ureter could be formed by retraction in the superior and lateral directions. Then, a custom-made laparoscopic bulldog clamp was placed at the bottom of the tent-shaped structure to prevent urine spillage, and the bladder was closed by two-layer running closure using a barbed suture.
RESULTS: All surgeries were completed uneventfully. The mean operative time and estimated blood loss were 146.6 minutes and 47.3 mL, respectively. The median duration of the postoperative hospital stay was 6 days. No complications were noted. There were no positive margins in any specimen. No patients experienced stone formation or local or bladder recurrence during the 10.5-month follow-up period.
CONCLUSIONS: Our novel technique fully replicates the open excision technique and conforms to the strictest oncologic principles while avoiding patient repositioning and the use of staplers (EndoGIA or Hemolock) to prevent stone formation.
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