ArticleUlusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES2024
The effect of distal ureteral lateralization angle on ureteral trauma avoidance and successful ureteral access sheath placement.
Article in Ulusal travma ve acil cerrahi dergisi = Turkish journal of trauma & emergency surgery : TJTES, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- The impact of preoperative CT-based 3D visualization model on ureteric access sheath placement failure without pre-stenting.BMC urology · 2026Article
- Article
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Abstract
backgroundThe use of ureteral access sheaths (UAS), which offer advantages in flexible ureteroscopic lithotripsy (fURL), may lead to undesirable conditions such as ureteral injury, ischemia, and prolonged ureteral stenosis. The aim of this study was to investigate the effect of the distal ureteral lateralization angle on successful UAS placement.
methodsWe analyzed the data of patients who underwent fURL for kidney and/or proximal ureteral stones retrospectively. Based on the preoperative computed tomographic examinations of the patients, the bladder outlet was considered the zero point. We calculated the angle values between the horizontal axis passing through this point and the most lateralized point of the distal ureter. The patients were divided into two groups: those to whom UAS was successfully placed and those to whom UAS placement failed.
resultsNo significant difference was detected between the groups with successful UAS placement (n=36) and those without UAS placement (n=12) in terms of sex, laterality, localization, number of stones, stone burden, and bladder volumes evaluated with preoperative computed tomography (p>0.05). However, a significant difference was found between the two groups regarding age and distal ureteral lateralization angle (p<0.001, p=0.013).
conclusionThe distal ureteral lateralization angle is considered to be an effective factor in the placement of UAS in patients scheduled for fURS.
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