A New Technique for Percutaneous Nephrolithotomy Using Retrograde Ureteroscopy and Laser Fiber to Achieve Percutaneous Nephrostomy Access: The Initial Case Report

Uribe, C.; Osório, Hugo; Benavides, Johana; Martínez, Carlos H.; Valley, Zachary A.; Kaler, Kamaljot

doi:10.1089/cren.2018.0079

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…The externally conducted laser fiber is used as a guide wire for further standard formation of antegrade percutaneous access. The authors note in their studies that this access has two potential advantages, such as the accuracy of creating antegrade access and reducing the duration of radioscopy [55,56].…”

Section: Resultsmentioning

confidence: 99%

The use of endoscopic combined intrarenal surgery in the treatment of nephrolithiasis

Postol

Sahalevych²,

Serhiichuk³

et al. 2022

ZMJ

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Urolithiasis is one of the most common urological conditions (30–45 %), peaking in the 4th–6th decades of life. About 50 % of patients have one recurrent episode of nephrolithiasis during their lifetime, and among the operated patients, more than 10–15 % of individuals report recurrences with the need for repeated surgical treatment. Increasing the incidence of nephrolithiasis in the world requires the development of new and improvement of existing methods of surgical treatment, which would be characterized by a high level of efficiency and low invasiveness with minimal complications and postoperative rehabilitation. The use of a combination of percutaneous nephrolithotripsy and flexible ureteronephrolithotripsy, especially in complex cases of urolithiasis, can increase the safety and improve the treatment of nephrolithiasis by combining the positive qualities of both methods. Aim. To summarize the data of the world scientific literature on the treatment of nephrolithiasis by studying a combination of percutaneous nephrolithotripsy and retrograde or antegrade flexible intrarenal surgery based on the evaluation of their effectiveness and safety. Materials and methods. The literature review was conducted using the databases PubMed, Google Scholar, Web of Science and Scopus for the period 2015–2022. The following keywords were used for the search: surgical treatment of nephrolithiasis, endoscopic combined intrarenal surgery (ECIRS), percutaneous nephrolithotomy, retrograde intrarenal surgery, simultaneous use of flexible ureterorenoscopy and percutaneous nephrolithotomy, simultaneous use of flexible ureterorenoscopy and percutaneous nephrolithotripsy. Conclusions. The use of ECIRS increases the effectiveness of one-stage treatment of nephrolithiasis with minimal complications and reduces the number of re-operations required. Treatment of complex forms of nephrolithiasis may be a priority for ECIRS. The main disadvantages of ECIRS are the need for simultaneous operation of two operating surgeons and the availability of two sets of endoscopic equipment, which make this procedure expensive.

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Section: Resultsmentioning

confidence: 99%

The use of endoscopic combined intrarenal surgery in the treatment of nephrolithiasis

Postol

Sahalevych²,

Serhiichuk³

et al. 2022

ZMJ

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“…The system combines an endoscope with OCT machine, transmitting imaging results from the distal end of the endoscope to the OCT scanner lens. Endoscope has been previously reported to assist PCN guidance [41, 42]. However, conventional endoscope has limitations for tissue recognition because it only provides the tissue surface vision without subsurface information.…”

Section: Introductionmentioning

confidence: 99%

Percutaneous Nephrostomy Guidance by a Convolutional Neural Network Based Endoscopic Optical Coherence Tomography System

Wang,

Calle,

Yan

et al. 2024

Preprint

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Percutaneous nephrostomy (PCN) is a commonly used procedure for kidney surgeries. However, difficulties persist in precisely locating the PCN needle tip during its insertion into the kidney. Challenges for PCN needle guidance exist in two aspects: 1) Accurate tissue recognition, and 2) Renal blood vessel detection. In this study, we demonstrated an endoscopic optical coherence tomography (OCT) system for PCN needle guidance. Human kidney samples are utilized in the experiments. Different renal tissues including: 1) cortex, 2) medulla, 3) calyx, 4) fat, and 5) pelvis can be clearly distinguished based on their OCT imaging features. We conduct kidney perfusion experiments to mimic the renal blood flow. Our system can efficiently detect the blood flow in front of PCN needle using Doppler OCT function. To improve surgical guidance efficiency and alleviate the workload of radiologists, we employ convolutional neural network (CNN) methods to automate the procedure. Three CNN models including ResNet50, InceptionV3, and Xception were applied for tissue classification. All of them demonstrate promising prediction results, with InceptionV3 achieving the highest recognition accuracy of 99.6%. For automatic blood vessel detection, nnU-net was applied, and it exhibited intersection over unions (IoU) values of 0.8917 for blood vessel and 0.9916 for background.

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Fluoroless Endourological Surgery for Stone Disease: a Review of the Literature—Tips and Tricks

et al. 2020

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A New Technique for Percutaneous Nephrolithotomy Using Retrograde Ureteroscopy and Laser Fiber to Achieve Percutaneous Nephrostomy Access: The Initial Case Report

Cited by 4 publications

References 3 publications

The use of endoscopic combined intrarenal surgery in the treatment of nephrolithiasis

The use of endoscopic combined intrarenal surgery in the treatment of nephrolithiasis

Percutaneous Nephrostomy Guidance by a Convolutional Neural Network Based Endoscopic Optical Coherence Tomography System

Fluoroless Endourological Surgery for Stone Disease: a Review of the Literature—Tips and Tricks

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