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mini pcnl

Patrick Jones, Muhammad Elmussareh, Omar M Aboumarzouk, Phillip Mucksavage, Bhaskar K Somani
PURPOSE OF REVIEW: The role of PCNL and the expertise surrounding it has expanded in recent decades. Miniaturisation of equipment and instrument size has formed a part of this innovation. Although an increasing number of studies have been performed on miniaturised PCNL (Mi-PCNL) recently, a critical appraisal on these is lacking. We therefore conducted a systematic review of the literature to evaluate the efficacy, safety and feasibility of Mi-PCNL techniques (< 15 Fr). RECENT FINDINGS: A systematic review was conducted from 1990 to March 2017 on outcomes of Mi-PCNL [micro PCNL (m-PCNL) and ultra-mini PCNL (UMP)] in adult patients...
March 7, 2018: Current Urology Reports
N F Davis, M R Quinlan, C Poyet, N Lawrentschuk, D M Bolton, D Webb, G S Jack
PURPOSE: This study aims to comparatively evaluate clinical outcomes of mini-PCNL and FURS for treating urinary tract calculi in a single session. METHODS: A systematic search using electronic databases was performed for studies comparing mini-PCNL and FURS for the treatment of urinary tract calculi. The primary outcome measurements were stone-free rates (SFRs) and complication rates for both techniques. Secondary outcome measurements were to compare patient demographics, operative duration, and inpatient stay...
February 16, 2018: World Journal of Urology
Ahmed Farouk, Ahmed Tawfick, Mohamed Shoeb, Mahmoud A Mahmoud, Diaa Eldin Mostafa, Mohamed Hasan, Hany M Abdalla
PURPOSE: The extracorporeal shockwave lithotripsy (ESWL) remains the most common first line of treatment for renal stones in the pediatric population. The purpose of this study is to evaluate and compare the outcomes of the ESWL and mini-percutaneous nephrolithotomy (mini-PCNL). PATIENTS AND METHODS: A total of 108 patients younger than 12 years of age with 1-2 cm single renal stone (pelvic or calyceal) were randomized into two groups, each containing 54 patients...
February 15, 2018: World Journal of Urology
Yang Liu, Jad AlSmadi, Wei Zhu, Yongda Liu, Wenqi Wu, Junhong Fan, Yu Lan, Wayne Lam, Wen Zhong, Guohua Zeng
PURPOSE: To compare the efficacy and safety of Super-mini percutaneous nephrolithotomy (SMP, F12-F14) and Miniperc (F18) in the treatment of renal stones of 2-4 cm in size. METHODS: A prospective comparative analysis of outcomes of patients who underwent SMP and Miniperc for treatment of 2-4 cm renal stones was conducted between July 2014 and January 2017. Demographic data, stone criteria, operative technique, complications, blood transfusion, hemoglobin decrease, stone-free rate (SFR) and length of hospital stay were compared between the two groups...
January 31, 2018: World Journal of Urology
Sven Lahme
Conventional PCNL leads to a high stone-free rate but is associated with a significant treatment morbidity. To decrease the morbidity of PCNL but to achieve an equal stone-free rate, in 2001 a miniaturised version of a conventional PCNL (Mini-PCNL) was introduced. Meanwhile numerous modifications of the Mini-PCNL were reported. The ongoing experience with the Mini-PCNL technique showed that Mini-PCNL is not only a miniaturisation but also a different method to remove the stones, as the stones come out of the calyceal system only by means of the irrigation flow without any further need of forceps or baskets...
February 2018: Urolithiasis
Ramin Haghighi, Hossein Zeraati, Maryam Ghorban Zade
Objective: To assess the effectiveness and advantages of ultra-mini-percutaneous nephrolithotomy (UM-PCNL) versus standard PCNL (S-PCNL), as one of the most important differences between the various PCNL techniques is the size of the renal access, which contributes to the broad spectrum of complications and outcomes. Patients and methods: This clinical randomised trial was conducted in 2016. In all, 70 patients with renal or upper ureteric stones of 10-20 mm in diameter, who were candidates for PCNL, were divided equally into two groups...
December 2017: Arab Journal of Urology
Rajesh A Kukreja
INTRODUCTION: Reducing the percutaneous nephrolithotomy (PCNL) tract size reduces the morbidity associated with the procedure. Prolonged procedure time is a concern. Modification in technique required is to fragment the stone into smaller particles and remove them using the vacuum cleaner effect. This prospective study compares the efficacy and morbidity of reducing the tract size from the standard 24-16.5 Fr for stones sized from 16 to 30 mm. METHODS: 123 patients were enrolled in this prospective study and distributed into 2 groups based on the tract size used (group A 16...
November 13, 2017: World Journal of Urology
Yang Xun, Qing Wang, Henglong Hu, Yuchao Lu, Jiaqiao Zhang, Baolong Qin, Yudi Geng, Shaogang Wang
BACKGROUND: To update a previously published systematic review and meta-analysis on the efficacy and safety of tubeless percutaneous nephrolithotomy (PCNL). METHODS: A systematic literature search of EMBASE, PubMed, Web of Science, and the Cochrane Library was performed to confirm relevant studies. The scientific literature was screened in accordance with the predetermined inclusion and exclusion criteria. After quality assessment and data extraction from the eligible studies, a meta-analysis was conducted using Stata SE 12...
November 13, 2017: BMC Urology
Puskar Shyam Chowdhury, Prasant Nayak, Deepak David, Sujata Mallick
INTRODUCTION: A precise puncture of the renal collecting system is the most essential step for percutaneous nephrolithotomy (PCNL). There are many techniques describing this crucial first step in PCNL including the bull's eye technique, triangulation technique, free-hand technique, and gradual descensus technique. We describe a novel puncture guide to assist accurate percutaneous needle placement during bull's eye technique. METHODS: The mini access guide (MAG) stabilizes the initial puncture needle by mounting it on an adjustable multidirectional carrier fixed to the patient's skin, which aids in achieving the "bull's eye" puncture...
October 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
Xiao-Shuai Gao, Bang-Hua Liao, Yun-Tian Chen, Shi-Jian Feng, Rang Gao, De-Yi Luo, Jia-Ming Liu, Kun-Jie Wang
PURPOSE: Miniaturized percutaneous nephrolithotomy (MPCNL), including minipercutaneous nephrolithotomy (PCNL), ultramini-PCNL, and micro-PCNL, have been developed recently. The aim of this meta-analysis was to compare the safety and efficacy of different tract sizes of MPCNL with retrograde intrarenal surgery (RIRS) in the management of kidney stones. MATERIALS AND METHODS: We searched PubMed, Embase, and Web of Science to identify case-control trials and randomized controlled trials, which evaluated MPCNL vs RIRS before February 2017...
November 2017: Journal of Endourology
Abd Alrahman Ahmad, Omar Alhunaidi, Mohamed Aziz, Mohamed Omar, Ahmed M Al-Kandari, Ahmed El-Nahas, Mohamed El-Shazly
BACKGROUND: The aim of this study was to report current practices of percutaneous nephrolithotomy (PCNL) among endourologists. METHODS: An internet survey was administered to Endourological Society members. Responders were distributed into three groups according to the number of PCNL cases per year (<50, 50-100, >100). PCNL technical details as well as opinions regarding specific clinical case scenarios were evaluated and compared between groups. RESULTS: We received 300 responses from 47 different countries...
September 2017: Therapeutic Advances in Urology
Mehmet Hamza Gültekin, Fethi Ahmet Türegün, Burak Ozkan, Beril Tülü, Gamze Gül Güleç, Nejat Tansu, Çetin Demirdağ, Pınar Kendigelen, Ahmet Erözenci, Bülent Önal
PURPOSE: To evaluate the effects of previous ipsilateral open renal stone surgery (ORSS) on outcomes of extracorporeal shockwave lithotripsy (SWL) in adults with renal stones. MATERIALS AND METHODS: A total of 2097 renal units with renal stones underwent SWL treatment at our institution between March 1997 and February 2013. One thousand eight hundred thirty-nine (87.7%) of these had no history of ORSS and were categorized as group 1, and 258 (12.3%) patients having history of ipsilateral ORSS were categorized as group 2...
October 10, 2017: Journal of Endourology
Silvia Proietti, Guido Giusti, Mahesh Desai, Arvind P Ganpule
CONTEXT: In an effort to reduce morbidity related to percutaneous nephrolithotomy (PCNL), some investigators have progressively introduced miniaturised approaches. The development of miniaturised nephroscopes facilitated widespread dissemination of these techniques and a significant expansion of the role of PCNL in endourology. OBJECTIVE: To discuss the different techniques comprising modern PCNL and identify the pros and cons of each of them. EVIDENCE ACQUISITION: Data for this review were identified through a search of PubMed, including studies published in the last 20 yr in core clinical journals in English...
February 2017: European Urology Focus
Fernando Ramón de Fata-Chillón, Helena Gimbernat-Díaz, Cristina Redondo-Redondo, Elisa Meilán-Hernández, Erika Mateo-Martínez
OBJECTIVES: Mini-PCNL is a potentially less invasive technique than standard percutaneous nephrolithotomy (PCNL). We present our experience and results comparing both approaches in large burden complex renal calculi. METHODS: Prospective non randomized study comparing PCNL (24/26F nephroscope; Group A) and Mini-PCNL (15/18F; Group B) perioperative and postoperative results, in 40 (20 each group) consecutive patients between 2013 and 2014. We analyze demographic data, hemoglobin drop, urine culture, stone characteristics, operative time, puncture, number and size of the tract, disintegration energy sources, nephrostomy placement, hospital stay, stone free rate and Clavien-Dindo complications...
June 2017: Archivos Españoles de Urología
Hongyang Jiang, Zhe Yu, Liping Chen, Tao Wang, Zhuo Liu, Jihong Liu, Shaogang Wang, Zhangqun Ye
Minimally invasive percutaneous nephrolithotomy (mini-PCNL) and retrograde intrarenal surgery (RIRS) are both alternatives for PCNL to treat renal calculi. This study is aimed at comparing the stone-free rate (SFR) and other surgery parameters of two approaches for treating upper urinary calculi. We performed this meta-analysis in September 2016 by searching studies about mini-PCNL and RIRS for treating upper urinary calculi in various databases, and RevMan v.5.3 was applied. Three randomized controlled trials and ten nonrandomized trials were included, involving a total of 1317 patients...
2017: BioMed Research International
Derek B Hennessey, Ned K Kinnear, Andrew Troy, David Angus, Damien M Bolton, David R Webb
OBJECTIVE: To evaluate the minimally invasive percutaneous nephrolithotomy (MIP) system for renal calculi. PATIENTS AND METHODS: Consecutive patients undergoing mini-percutaneous nephrolithotomy (mPCNL) procedures with the MIP system were enrolled. Patient position, American Society of Anesthesiologists classification, puncture location, stone clearance, postoperative drainage and complications were recorded, and features unique to MIP were noted. RESULTS: In all, 30 patients underwent 32 mPCNL procedures...
May 2017: BJU International
Nariman Gadzhiev, Brovkin Sergei, Vladislav Grigoryev, Zhamshid Okhunov, Arvind Ganpule, Aleksei Pisarev, Yerbol Iskakov, Sergei Petrov
PURPOSE: To evaluate the effect of 'Bernoulli maneuver' (bringing the access sheath to horizontal plane) on operative time and stone free rates in patients undergoing mini-percutaneous nephrolithotomy (PCNL). MATERIALS AND METHODS: All consecutive patients with a solitary kidney stone undergoing a mini-PCNL between 2015 and 2016 were included into this study. Patients were randomized either to standard prone or control (C) group patients or to tilted prone with 'Bernoulli maneuver' group (B) patients...
May 2017: Investigative and Clinical Urology
Patrick Jones, Grace Bennett, Omar M Aboumarzouk, Stephen Griffin, Bhaskar K Somani
INTRODUCTION: Management of pediatric stone disease is challenging, with standard percutaneous nephrolithotomy (PCNL) having a good stone-free rate (SFR), but with associated high complication rates. Miniaturization of this technique has led to the rise of minimally invasive PCNL techniques such as micro (<10F) and ultra-mini (<15F) PCNL procedures. Our objective was to perform a systematic review of the literature to evaluate the success and complication rates of minimally invasive PCNL techniques in the pediatric age group (<18 years)...
June 13, 2017: Journal of Endourology
Esteban Emiliani, Michele Talso, Mohammed Baghdadi, Olivier Traxer
INTRODUCTION: Miniaturization of instruments has changed the paradigms of percutaneous nephrolithotomy (PCNL). To date, however, few studies have analyzed the possible renal trauma generated by PCNL tract dilation. The purpose of this study is to evaluate and compare systematically the renal injury of all PNCL dilation techniques in pork kidneys (PK) and cadaveric kidney models (CK). MATERIAL AND METHODS: Twelve dilation devices were tested (from 4.8 to 30 French (Fr)) including micro- and mini- PCNL kits, the Alken dilation set, 20 and 30 ATM balloons and the Amplatz set...
2017: Central European Journal of Urology
J H Amón Sesmero, M Cepeda Delgado, B de la Cruz Martín, J A Mainez Rodriguez, D Alonso Fernández, V Rodriguez Tesedo, D A Martín Way, J Gutiérrez Aceves
INTRODUCTION: The progressive reduction in the calibre of the tract in percutaneous kidney surgery to the point of miniaturisation has expanded its use to smaller stones that until now have been treated with extracorporeal shock wave lithotripsy (ESWL) and retrograde intrarenal surgery (RIRS). OBJECTIVE: To provide an update on the various techniques of small-calibre nephrolithotomy (SC-PCNL) analyse their efficacy, safety and indications and determine their degree of implantation at this time...
November 2017: Actas Urologicas Españolas
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