Knotted multi‐length ureteric stents: a case series

Manohar, Paul; Kan, Wen Ter; Ranasinghe, Weranja; Cetti, Richard J.; McCahy, Philip

doi:10.1111/ans.12689

Cited by 5 publications

(6 citation statements)

References 7 publications

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“…In a case series by Manohar et al 3 out of 4 cases involve the use of size 4.8 Fr diameter stent [9]. 3 of our cases did not report on the size of the stent used.…”

Section: Predisposing Factor To Knotted Stentmentioning

confidence: 55%

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Management of knotted ureteral stent: A case report and comprehensive review of literature

Choo¹,

Hong²,

Lee³

2021

Clin Case Rep Rev

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“…In a case series by Manohar et al 3 out of 4 cases involve the use of size 4.8 Fr diameter stent [9]. 3 of our cases did not report on the size of the stent used.…”

Section: Predisposing Factor To Knotted Stentmentioning

confidence: 55%

“…This, however, has not been proven to be a method in any other literature. [5,9,[12][13][14]. The choice of laser is Holmium:YAG (Yttrium Aluminum Garnet).…”

Section: Ureteroscopy and Holmium Lasermentioning

confidence: 99%

Management of knotted ureteral stent: A case report and comprehensive review of literature

Choo¹,

Hong²,

Lee³

2021

Clin Case Rep Rev

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“… 3 , 19–26 It is speculated that knot formation may occur due to the excessive length of the coils. 25 , 26 A variety of techniques have been described to remove the knotted stent. Among them, gentle traction and unknotting of the stent by passing a super-stiff guidewire may represent a minimally invasive technique.…”

Section: Discussionmentioning

confidence: 99%

A Novel Telescopic Access Sheath Method to Manage Encrusted or Knotted Retained Ureteral Stents

Agarwal

2022

Journal of Endourology

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Purpose: Encrusted and knotted stents may cause serious urologic complications. This study aimed to develop a novel and minimally invasive technique to manage encrusted or knotted retained ureteral stents. Materials and Methods: This technique was used in nine patients with retained stents. Through rigid cystoscopy, the stents were pulled out of the urinary meatus. The access sheath was modified by cutting the distal end of its obturator. The modified access sheath was advanced over the retained stents in a telescopic manner to remove the encrusted and/or knotted stents. Results: Six patients had encrustations, two had knot formation, and one had both encrustation and knot formation. The encrustations were peeled off in the process. The knots were either undone or pulled through the lumen of the access sheath. The retained stents were removed intact from all patients without any complications. Conclusion: The access sheath method described in this article provides a simple alternative for the removal of encrusted or knotted retained stents. However, this technique requires further validation to establish its safety and efficacy.

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“…1 Complications include stent irritation, encrustation, knotting, and migration. 1,2 Predictors of proximal stent migration include low stent-to-ureter length ratio based on ureterovesical-to-ureteropelvic junction measurement, upper calyx placement of the proximal stent curl, and proximal migration may also be related to the degree of proximal stent curl, and increased indwelling time. 3,4 Measurement of actual ureteral length can be estimated by height, body habitus, imaging such as intravenous pyelography, or directly measured with a guidewire or ureteral catheter.…”

Section: Introductionmentioning

confidence: 99%

“…4 Management options for proximal ureteral stent migration include ureteroscopy and basket, laser fragmentation, laparoscopic ureterotomy, and percutaneous nephrolithotomy (PCNL). [1][2][3] Mini-PCNL should be considered as a successful minimally invasive antegrade approach for managing a retained ureteral stent.…”

Section: Introductionmentioning

confidence: 99%