Systematic Evaluation of Ureteral Occlusion Devices: Insertion, Deployment, Stone Migration, and Extraction

Ahmed, Mahfuza; Pedro, Renato N.; Kieley, Sam; Akornor, Joseph W.; Durfee, William K.; Monga, Manoj

doi:10.1016/j.urology.2008.12.048

Cited by 46 publications

(22 citation statements)

References 6 publications

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“…Ureterorenoscopy (URS) with and without lithotripsy is a standard method to treat ureteral calculi depending on different factors including location, stone size, individual patient factors as well as equipping [1, 2]. A particular challenge limiting the success of ureteroscopic lithotripsy is stone retropulsion due to insertion of the ureteroscope, pressure by the irrigation fluid and/or the lithotripsy itself [2].…”

Section: Introductionmentioning

confidence: 99%

The “Guidewire-Coil”-Technique to prevent retrograde stone migration of ureteric calculi during intracorporeal lithothripsy

et al. 2017

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BackgroundStone retropulsion represents a challenge for intracorporeal lithotripsy of ureteral calculi. The consequences are an increased duration and cost of surgery as well as decreased stone-free rates. The use of additional tools to prevent proximal stone migration entails further costs and risks for ureteral injuries. We present the simple technique of using a coil of the routinely used guidewire to prevent stone retropulsion.MethodsWe retrospectively evaluated all patients with mid-to-proximal ureteral stones in 2014, which were treated by ureteroscopic lithotripsy (Ho: YAG and/or pneumatic lithotripsy). The preoperative stone burden was routinely assessed using low dose CT scan (if available) and/or intravenous pyelogram.ResultsThe study population consisted of 55 patients with 61 mid-to-proximal calculi. Twentyseven patients underwent semirigid ureterorenoscopy using the “Guidewire-Coil-Technique”, the second group (n = 28) served as control group using the guidewire as usual. There has been a statistically significant reduction of accidental stone retropulsion (2/27 vs. 8/28, p < 0.05) as well as a decreased use of auxiliary procedures (p < 0.05) compared to the control group. No difference was observed in operative time. One ureteral injury in the control group required a prolonged ureteral stenting.ConclusionThe “Guidewire-Coil-Technique” is a simple and safe procedure that may help to prevent proximal calculus migration and therefore may increase stone-free rates without causing additional costs.

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Section: Introductionmentioning

confidence: 99%

The “Guidewire-Coil”-Technique to prevent retrograde stone migration of ureteric calculi during intracorporeal lithothripsy

et al. 2017

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“…In another in vitro study, Ahmed et al [15] emphasized that the Stone Cone and PercSys had equal efficacy. In our study, the stone migration rate was calculated as 4.5 and 8.7% in the Stone Cone and PercSys groups, respectively, which were both significantly lower than that of the control group (31.8%; p < 0.05).…”

Section: Discussionmentioning

confidence: 99%

Comparing of Different Methods for Prevention Stone Migration During Ureteroscopic Lithotripsy

Şen¹,

Bayrak²,

Erturhan³

et al. 2013

Urol Int

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Aim: To compare the effectiveness of Stone Cone™, PercSys and lidocaine jelly instillation to prevent stone migration during ureterorenoscopy (URS). Materialsand Methods: One hundred patients who underwent URS for proximal ureteral stones between 2007 and 2012 were evaluated prospectively. The patients were divided into four groups consecutively. The control group (Group I) consisted of the 25 consecutive patients, in whom no device or method was used to prevent stone migration. Group II consisted of 25 patients treated with the Stone Cone, group III consisted of 25 patients treated with PercSys, and group IV consisted of 25 patients treated with lidocaine jelly instillation. Results: The migration rates were 4.5% in group II, 8.7% in group III, 21.7% in group IV, and 31.8% in group I. The migration rate was found to be statistically significantly lower in the groups treated with the Stone Cone and PercSys compared to the control group (p = 0.014, p = 0.048). However, there was no statistically significant difference between the lidocaine jelly group and the control group in terms of migration rates (p = 0.444). Conclusions: Our results suggested that the Stone Cone and PercSys were the most successful methods with significantly low migration rates (4.5 and 8.7%, respectively).

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“…The tip of the scope houses a 1 mm digital camera and dual LED driven light carriers, negating the need for an external xenon light source. Compared to fiberoptic scopes in vitro , the digital image has demonstrated higher resolution[1718] and the 4.9 mm (15 F) working channel allows for insertion of a variety of instruments, forceps, lithotriptor probes (including the CyberWand ® ), or suction devices. Overall, this “next generation” of digital nephroscopes offers a lighter and more ergonomic design with higher image resolution compared to its fiber optic predecessors.…”

Section: Digital Rigid Nephroscopesmentioning

confidence: 99%

“…Its efficacy at preventing retrograde fragment migration has been well described during ureteroscopic lithotripsy. [1718] Wosnitzer et al . retrospectively evaluated the ability of the Accordion ® to prevent antegrade stone migration during PCNL[19] The authors retrospectively reviewed a PCNL database and compared PCNL surgery in 30 patients with the device (Accordion ® group) and 30 patients without the device (PCNL group) who were matched for stone size and composition.…”

Section: Stone Manipulation Devicesmentioning

confidence: 99%

New instrumentation in percutaneous nephrolithotomy

Pugh¹,

Canales²

2010

Indian J Urol

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Percutaneous nephrolithotomy (PCNL) is the procedure of choice for removing large, complex, and/or multiple renal calculi. Since its first description in 1976, PCNL techniques and equipment have evolved to maximize procedural efficacy, safety, and reproducibility. We reviewed current literature from January 2004 to November 2009 using Medline search regarding PCNL instrumentation and technology. Additional equipment discovered during the review process without published Medline evidence was summarized from manufacturer brochures and data. Included in this review are summaries of intracorporeal lithotriptors and accessory equipment, stone manipulation devices, PCNL tract sealants, and a digital rigid nephroscope. The evolution of these devices from their predecessors has increased the instrumentation options for the treating urologist and may represent more effective technology for the percutaneous treatment of large renal stones.

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Systematic Evaluation of Ureteral Occlusion Devices: Insertion, Deployment, Stone Migration, and Extraction

Cited by 46 publications

References 6 publications

The “Guidewire-Coil”-Technique to prevent retrograde stone migration of ureteric calculi during intracorporeal lithothripsy

The “Guidewire-Coil”-Technique to prevent retrograde stone migration of ureteric calculi during intracorporeal lithothripsy

Comparing of Different Methods for Prevention Stone Migration During Ureteroscopic Lithotripsy

New instrumentation in percutaneous nephrolithotomy

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