Per urethra insertion of a through-and-through safety guide wire using a dual-lumen ureteral catheter during percutaneous nephrolithotripsy

2004 ◽  
Vol 36 (3) ◽  
pp. 317-318
Author(s):  
A. Greenstein ◽  
M. Sofer ◽  
N.J. Mabjeesh ◽  
I. Kaver ◽  
H. Matzkin
Keyword(s):  
Guide Wire ◽  
Ureteral Catheter ◽  
Percutaneous Nephrolithotripsy

scholarly journals Surgical Technique of Supine Percutaneous Nephrolithotomy in Children

2021 ◽  
Vol 30 (04) ◽  
pp. e300-e303
Author(s):  
Stefania Prada ◽  
Nicolas Fernandez ◽  
Julián Chavarriaga ◽  
Jaime Perez ◽  
Hugo López-Ramos
Keyword(s):  
Surgical Technique ◽  
Percutaneous Nephrolithotomy ◽  
Yttrium Aluminum Garnet ◽  
Guide Wire ◽  
Pediatric Population ◽  
Comparable Efficacy ◽  
Anatomical Landmarks ◽  
Ureteral Catheter ◽  
Reduce Radiation Exposure ◽  
Posterior Axillary Line

AbstractPercutaneous nephrolithotomy (PCNL) in children has become more widely used due to its high efficacy and safety and to the development of miniaturized instruments. A supine approach is promising due to advantages such as better ventilation, reproducibility, and ergonomics. The purpose of the present study is to describe our surgical technique with special considerations in the pediatric population. We used an oblique supine position supported by one silicone gel positioning pad under the hip and another under the ipsilateral flank. The anatomical landmarks used to guide the puncture were the 11th and 12th ribs, the posterior axillary line, and the iliac crest. Initially, a ureteral catheter was introduced endoscopically. A retrograde pyelography was performed to guide the puncture, which was performed using a biplanar technique. A hydrophilic guide wire was then advanced through the needle. Dilation was performed with Alken telescopic dilators until 14 Ch. Fragmentation was performed either with a 13 Ch semirigid cystoscope or a flexible ureteroscope using a holmium: yttrium aluminum garnet (Ho:Yag) laser. We left a double J catheter. Supine PCNL in the pediatric population has comparable efficacy in terms of stone free rate to that of the prone approach as well as less complications. Certain considerations in children are careful padding and placement of the patient close to the edge of the table. Puncture should be guided by ultrasound to reduce radiation exposure. Miniaturized equipment is not widely available, so adaptation of adult equipment for the pediatric population is sometimes necessary.

Nd:YAG laser application in the treatment of upper urinary tract tumours

1996 ◽  
Vol 63 (1) ◽  
pp. 58-64
Author(s):  
F. Gaboardi ◽  
A. Bozzola ◽  
T. Melodia ◽  
L. Galli
Keyword(s):  
Urinary Tract ◽  
Laser Irradiation ◽  
Nd:Yag Laser ◽  
Guide Wire ◽  
Solitary Kidney ◽  
Upper Urinary Tract ◽  
The Other ◽  
First Year ◽  
Ureteral Catheter ◽  
Poor Renal Function

— 29 patients were referred to our Department for upper urinary tract tumours and underwent ureteropyeloscopy with laser irradiation of the neoplasm. All the patients had been selected for this treatment previously because of solitary kidney, bilateral tumours, poor renal function, refusal of nephroureterectomy. The tumours were treated with Nd:YAG laser irradiation at 25–30 Watts/3 sec. Before the procedure, the ureter and pelvis were accessed by a 0.035 inch guide wire or 4 French ureteral catheter. No important side effects were noted after the procedure in 27 of the 29 patients. Two patients developed ureteral stenosis; the first after several treatments, the other after the first treatment. Follow-up consists of endoscopic surveillance every three months in the first year then every 6 months in the absence of recurrences. At present 10 patients are tumour-free, 3 patients underwent nephroureterectomy for massive recurrences and the other patients underwent new laser irradiation.

scholarly journals The active guidewire technique versus standard technique as different way to approach ureteral endoscopic stone treatment

2021 ◽  
Vol 93 (4) ◽  
pp. 431-435
Author(s):  
Alessandro Calarco ◽  
Marco Frisenda ◽  
Emilio Molinaro ◽  
Niccolò Lenci
Keyword(s):  
High Pressures ◽  
Guide Wire ◽  
Operating Time ◽  
Standard Technique ◽  
Treatment Quality ◽  
Ureteral Catheter ◽  
Stone Free Rate ◽  
Stone Treatment ◽  
The Difference ◽  
Free Rate

Background: One of the greatest challenges in semi-rigid ureteroscopies, for both stones and tumors, is the control of endoscopic vision and the maintenance of low intracavitary liquid pressure. We present a comparison between two operative techniques: in the first method an ordinary guide wire (diameter 0.032'') is used for the procedure; in the second one a 5 Fr ureteral catheter replaces the guidewire (we called it “Active guidewire”) Methods We compared 50 semirigid ureteroscopies (sURS) performed using the active guidewire with another 50 procedures conducted with a classic guidewire. We evaluated the difference in operating times, quality of endoscopic vision, periprocedural infections rate and stone-free rate. Results: The use of active guidewire has considerably reduced the standardized operating times per unit stone-volume by about 39%. Vision quality has improved considerably thanks to the continuous flow in-and-out. Consequently, periprocedural infections decreased (3% vs 30%) and the stone-free rate rose from 86% to 92%. Discussion and conclusions: Employing an “active guidewire” instead of the standard guidewire, the risk of complications related to high pressures and operating time is considerably lower, as well as better treatment quality thanks to the cleaner vision. This technique has proven to be safe as well as easy to apply, and in our belief is to be preferred whenever the ureter accepts without forcing, both the presence of the catheter and the semi-rigid 7 F ureteroscope.

1905: The Effect of Percutaneous Nephrolithotripsy (PCNL) on Renal Function: Assessment with Quantitative Spect of TC 99M-DMSA (QDMSA) Renal Scintigraphy

2004 ◽  
Vol 171 (4S) ◽  
pp. 503-503
Author(s):  
Boaz Moskovitz ◽  
Vladimir Sopov ◽  
Sarel Halachmi ◽  
Michael Mullerad ◽  
Yusef Barbara ◽  
...  
Keyword(s):  
Renal Function ◽  
Renal Scintigraphy ◽  
Quantitative Spect ◽  
Percutaneous Nephrolithotripsy ◽  
Function Assessment

Outcome of Upper Ureteric Stone Management by Semirigid Ureterorenoscope and Intracorporeal Pneumatic Lithotripsy

2020 ◽  
Vol 16 (2) ◽  
pp. 47-50
Author(s):  
Md Ruhul Quddus ◽  
Md Asaduzzaman ◽  
Md shariful Islam ◽  
Kaiser Ahmed ◽  
MA Awal ◽  
...  
Keyword(s):  
Kidney Diseases ◽  
Guide Wire ◽  
Ureteral Injury ◽  
Ureteric Stone ◽  
Stone Clearance ◽  
Stone Fragment ◽  
Ureteric Calculi ◽  
Ureteric Orifice ◽  
Distal Obstruction ◽  
Ureteric Stricture

Objective: To evaluate the outcome of upper ureteric stone management using semirigid URS + ICPL. Materials and Methods: Patients undergoing URS + ICPL in patient department were included in the study. Total 38 patient were included in the study from March 2009 to June 2010 in National Institute of Kidney diseases & Urology, Dhaka. Stone size was 8 mm to 1.5 cm, patients were with good renal function, well excreation on both side, without any distal obstruction, infection or multiple ureteric calculi. The procedure was done under SAB.Cystoscopy was done for identification of ureteric orifice and guide wire was passed within ureteric orifice under visual monitoring.46 cm 10 Fr Storz Uretroscope was advanced next to the guide wire.At time a tortuous portion of the ureter was encountered a second guide wire was helpful. As soon as the stone was seen the pneymatic probe was pushed toward the stone.After fixing to the stone, pneumatic source was on and stone fragmentation was started. Care was taken to avoid injury of the ureter and keeping eye one stone fragment migration within the ureter was achieved. Placement of D-J stent was done at the conclusion of the procedure in most of the cases Result: The patients were followed upto 3 months post-operatively. Within immediate complications fever occured in 10 (26.3%) patients, severe haematurea occured in 8 (21.3%) patients, ureteral injury in 8 (21.3%) & ureteric perforation in 2 (4.8%) patients underwent URS+ ICPL. Stone clearance rate after 01 month of intervention was 30 (78.9%). Almost half of the patients developed UTI after 01 month of intervention. Pyelonephritis occured in 2 ( 4.8%) patient in this group. After 03 months of intervention 84.2% patients exibited complete clearance of stone. Only 02 (4.8%) patients developed ureteric stricture. Conclusion: For management of selective sized upper ureteric stone ureterorenoscopy with semirigid one using pneumatic source of energy is a good option for it’s high stone clearance & resonably low complications. Bangladesh Journal of Urology, Vol. 16, No. 2, July 2013 p.47-50

Treatment of Malignant Esophageal Fistulas: Fluoroscopic Placement of Esophageal SEMS, Endoscopically-assisted through Surgical Gastrostomy. A Case Report

2016 ◽  
Vol 25 (2) ◽  
pp. 249-252 ◽  
Author(s):  
Gabriel Constantinescu ◽  
Vasile Şandru ◽  
Mădălina Ilie ◽  
Cristian Nedelcu ◽  
Radu Tincu ◽  
...  
Keyword(s):  
Esophageal Carcinoma ◽  
Guide Wire ◽  
Subsequent Development ◽  
Covered Stent ◽  
Metallic Stents ◽  
Fistula Formation ◽  
Life Threatening ◽  
Endoscopic Placement ◽  
Surgical Gastrostomy ◽  
Methods Of Treatment

Progressive esophageal carcinoma can infiltrate the surrounding tissues with subsequent development of a fistula, most commonly between the esophagus and the respiratory tract. The endoscopic placement of covered self-expanding metallic stents (SEMS) is the treatment of choice for malignant esophageal fistulas and should be performed immediately, as a fistula formation represents a potential life-threatening complication. We report the case of a 64-year-old male diagnosed with esophageal carcinoma, who had a 20Fr surgical gastrostomy tube inserted before chemo- and radiotherapy and was referred to our department for complete dysphagia, cough after swallowing and fever. The attempt to insert a SEMS using the classic endoscopic procedure failed. Then, a fully covered stent was inserted, as the 0.035” guide wire was passed through stenosis retrogradely by using an Olympus Exera II GIF-N180 (4.9 mm in diameter endoscope) via surgical gastrostomy, with a good outcome for the patient. The retrograde approach via gastrostomy under endoscopic/fluoroscopic guidance with the placement of a fully covered SEMS proved to be the technique of choice, in a patient with malignant esophageal fistula in whom other methods of treatment were not feasible. Abbreviations: ERCP: endoscopic retrograde cholangio-pancreatography; GI: gastrointestinal; SEMS: self-expandable metallic stents.

Comparison Between Supraclavicular and Infraclavicular Approach in Subclavian Vein Catheterization in Tertiary Center of Nepal

2020 ◽  
Vol 3 (2) ◽  
pp. 111-115
Author(s):  
Robin Khapung ◽  
Jeju Nath Pokharel ◽  
Kiran Kumar KC ◽  
Kripa Pradhan ◽  
Uma Gurung ◽  
...  
Keyword(s):  
Success Rate ◽  
Subclavian Vein ◽  
Guide Wire ◽  
Femoral Vein ◽  
Access Time ◽  
P Value ◽  
Central Vein ◽  
Chi Square ◽  
Tertiary Center ◽  
Vein Catheterization

Introduction: Central vein catheterization can be introduced in subclavian vein (SCV), internal jugular vein or femoral vein for volume resuscitation and invasive monitoring technique. Due to anatomical advantage and lesser risk of infection subclavian vein is preferred. Either supraclavicular (SC) or infraclavicular (IC) approach could be used for subclavian vein catheterization. The aim of the study was to compare SC and IC approach in ease of catheterization of SCV and record the complications present if any. Methods and materials: This was a hospital based comparative, interventional study conducted from November 2016 to October 2017 in Operation Theater in Bir Hospital. In this study, 70 patients for elective surgical cases meeting the inclusion criteria were randomly enrolled. Then samples were equally divided by lottery into either supraclavicular or infraclavicular approach groups. The Access time, cannulation success rate, attempts made for successful cannulation of vein, easy insertion of catheter and guide wire, approximate inserted length of catheter and associated complications in both groups were recorded. Data was entered in statistical software SPSS 16. Chi-square test was used. P value < 0.05 was considered significant. Results: The mean access time in group SC for SCV catheterization was 2.12 ± 0.81 min compared to 2.83 ± 0.99 min in group IC (p-value= 0.002). The overall success rate in catheterization of the right SCV using SC approach (34 / 35) was better as compared with group IC (33 / 35) using IC approach. First successful attempt in the SC group was 74.28% as compared with 57.14% in the IC group. Conclusion: The SC approach of SCV catheterization can be considered alternative to IC approach in terms of landmark accessibility, success rate and rate of complications.

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