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Super-mini percutaneous nephrolithotomy

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Asian Journal of Urology 2021年第2期8卷 251-252页

作者： arthur smith Tareq Aro The smith Institute of Urology New Hyde ParkNYUSA

Dear editor,The first extraction of a renal calculi through a percutaneous nephrostomy(PCNL)was described in 1976 by Fernstro¨m and Johansson[1].Through the collaboration of urology and interventional radiology,several innovations were later made to improve what we know today as PCNL[2].Ever since PCNL was introduced,the basic concepts for stone treatment with a nephroscope were the need for good visualization,a method to fragment larger stones,and a mechanical means to remove the *** we started with a 30-French instrument to meet those goals;the concept was to have a large enough channel to remove 1 cm stone *** decision was arbitrary at the time,and not evidence based.

关键词： nephro instrument remove

Percutaneous kidney stone surgery and radiation exposure: A review

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Asian Journal of Urology 2020年第1期7卷 10-17页

作者： Bohdan Baralo Patrick Samson David Hoenig arthur smith Urology Department National Pirogov Memorial Medical UniversityVinnytsyaUkraine Department of Urology Smith Institute for UrologyNorthwell HealthNew Hyde ParkNYUSA

During the past 3 decades,radiation exposure(RE)has increased drastically among patients undergoing percutaneous nephrolithotomy(PCNL),thus potentially causing new cases of cancer each *** effective dose received by patients comes from pre-and postoperative computed tomography(CT)and intraoperative fluoroscopy(FL).We reviewed literature to find novel techniques and approaches that help to decrease RE of patients and *** performed PubMed search using keywords percutaneous nephrolithotomy,intraoperative fluoroscopy,radiation exposure,imaging,percutaneous access,ultrasound,computed tomography,endoscopy,reconstruction,innovations,and augmented ***-four relevant articles were included in this *** much as 20%of patients with first diagnosed urolithiasis exceed background RE level almost *** diagnosing purposes using low-dose and ultra-low-dose CT,as well as low-dose dual energy scan protocols can be efficient ways to decrease RE while maintaining decent *** with urinary stones can be effectively monitored with digital tomosynthesis,ultrasound alone or ultrasound combined with plain film of the *** access(PCA)into the kidney can be performed with reduced or even no RE,using novel PCA *** from conventional imaging techniques during diagnosis and treatment increase probability of non-stochastic radiation *** should be aware of protocols that decrease RE from CT and FL in diagnosis and management of urinary *** of recently developed imaging modalities and PCA techniques will also aid in adherence to the“as low as reasonably achievable”principle.

关键词： PCNL Urolithiasis Reduction of radiation exposure Percutaneous kidney access Diagnostic imaging Training

The genetic framework for development of nephrolithiasis

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Asian Journal of Urology 2017年第1期4卷 18-26页

作者： Vinaya Vasudevan Patrick Samson arthur D.smith Zeph Okeke smith Institute for Urology Hofstra Northwell School of MedicineLake SuccessNYUSA

Over 1%-15% of the population worldwide is affected by nephrolithiasis,which remains the most common and costly disease that urologists manage *** of atrisk individuals remains a theoretical and technological *** search for monogenic causes of stone disease has been largely unfruitful and a technological challenge;however,several candidate genes have been implicated in the development of *** this review,we will review current data on the genetic inheritance of stone disease,as well as investigate the evolving role of genetic analysis and counseling in the management of nephrolithiasis.

关键词： Genetics Hypercalciuria Nephrolithiasis Urolithiasis Calcium sensing receptor Cystinuria Medullary sponge kidney Autosomal dominant polcystic kidney disease Uric acid nephrolithiasis Hypercalciuria

Advances in percutaneous stone surgery

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Asian Journal of Urology 2015年第1期2卷 26-32页

作者： Christopher Hartman Nikhil Gupta David Leavitt David Hoenig Zeph Okeke arthur smith Hofstra North Shore-LIJ School of Medicine The Arthur Smith Institute for UrologyNew Hyde ParkNYUSA

Treatment of large renal stones has changed considerably in recent *** increasing prevalence of nephrolithiasis has mandated that urologists perform more surgeries for large renal calculi than before,and this has been met with improvements in percutaneous stone *** this review paper,we examine recent developments in percutaneous stone surgery,including advances in diagnosis and preoperative planning,renal access,patient position,tract dilation,nephroscopes,lithotripsy,exit strategies,and post-operative antibiotic prophylaxis.

关键词： Nephrolithiasis Kidney calculi Percutaneous nephrolithotomy

Renal functional outcomes are not adversely affected by selective angioembolization following percutaneous nephrolithotomy

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Asian Journal of Urology 2017年第1期4卷 27-30页

作者： Ricardo Palmerola Vinay Patel Christopher Hartman Chris Sung David Hoenig arthur D.smith Zeph Okeke smith Institute for Urology Northwell HealthNew Hyde ParkNYUSA Interventional Radiology Northwell HealthNew Hyde ParkNYUSA

Objective:Selective angioembolization(SAE)effectively diagnoses and treats iatrogenic vascular complications following percutaneous nephrolithotomy(PCNL).Methods:We retrospectively reviewed 1329 consecutive PCNLs and identified patients who underwent SAE following PCNL with at least 12-month *** glomerular filtration rate(eGFR)was calculated for all patients preoperatively,postoperatively and at last followup.A 1:2 matched cohort analysis was ***:Twenty-three patients underwent SAE and matched to 46 *** was no statistically significant difference in preoperative,postoperative,and follow-up eGFR when comparing patients who underwent SAE and those with an uneventful ***:Long-term eGFR is comparable in patients who undergo uncomplicated PCNL and those requiring SAE.

关键词： Selective angioembolization Percutaneous nephrolithotomy Urologic complications Contrast induced nephropathy Postoperative hemorrhage

Percutaneous nephrolithotomy in octogenarians and beyond:How old is too old?

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Asian Journal of Urology 2015年第4期2卷 208-213页

作者： Bradley Morganstern Riccardo Galli Piruz Motamedinia David Leavitt Mohamed Keheila Eric Ghiraldi David Hoenig arthur smith Zeph Okeke The smith Institute for Urology NorthShore-Long Island Jewish Health SystemNew Hyde ParkNYUSA

Objective:To specifically report perioperative characteristics and outcomes in patients 80 years and older undergoing percutaneous nephrolithotomy(PCNL).PCNL has been established as feasible in the elderly;however,to our knowledge no one has specifically reported feasibility in patients 80 years and ***:We retrospectively reviewed perioperative data of octogenarians who underwent PCNL at a high stone volume single institution,and matched them to patients<65 years of age by stone burden and *** demographics,perioperative outcomes and postoperative complications were ***:Thirty-three octogenarians(mean age 83.6 years)with 36 renal units were matched to 67 controls(mean age 48.6 years)with 72 renal *** had a higher mean American Society of Anesthesiologists(ASA)score,more comorbidities,and worse renal *** were no differences in operative characteristics,length of hospital stay or stone free *** the patients with preoperative urinary decompression(ureteral stent or nephrostomy tube)prior to PCNL,the elderly were more likely to have a history of *** did not experience more minor Clavien(Ⅰ-Ⅱ)or major Clavien(Ⅲa-Ⅳb)***:Octogenarians who undergo PCNL were more likely to have cardiovascular comorbidities and a prior history of *** these risk factors,in appropriately selected patients PCNL can be safely and successfully performed in octogenarians without increased perioperative complications relative to a younger cohort.

关键词： Percutaneous nephrolithotomy Elderly Percutaneous stone extraction complications Clavien Octogenarians Percutaneous stone extraction

Determining rock crack stress thresholds using ultrasonic through-transmission measurements

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International Journal of Coal Science & Technology 2024年第2期11卷 67-80页

作者： Jiangwan He Mehdi Serati Martin Veidt arthur De Alwis School of Civil Engineering The University of QueenslandBrisbaneQLD 4072Australia School of Mechanical and Mining Engineering The University of QueenslandBrisbaneQLD 4072Australia

The crack initiation stress threshold is widely used in excavation industries as rock spalling strength when designing deep underground structures to avoid unwanted brittle *** various strain-based methods have been developed for the estimation of this critical design parameter,such methods are destructive and often requires subjective interpretations of the stress–strain curves,particularly in rocks with pre-existing microcracks or high *** study explore the applicability of non-destructive ultrasonic through-transmission methods for determining rock damage levels by assessing the changes in transmitted signal characteristics during *** change in velocity,amplitude,dominant frequency,and root-mean-square voltage are investigated with four different rock types including marble,sandstone,granite,and basalt under various stress *** suggest the rate of signal variations can be reliably used to estimate crack closure and crack initiation stress levels across the tested rocks before *** of the results between the conventional techniques and the new proposed methods based on ultrasonic monitoring are further discussed.

关键词： Ultrasonic Non-destructive testing Brittle rock Crack initiation Velocity Amplitude Frequency

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中国的乡村生活

作者： (美)明恩溥(arthur Henderson smith)

来源：南通市图书馆图书评论

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中国人的“面子”——节选自《中国人德行》

疯狂英语（阅读版） 2009年第5期 56-60页

作者： arthur H.smith 雪桐

上个世纪之交的中国人究竟过着什么样的生活？经历着怎样的动乱和变化？保持着哪些文化传统和陈规陋习？都市、乡村及社会各层面的具体状况如何？Chinese Characteristics（《中国人德行》）一书将为你解答这些问题。本书首版于1899年... 详细信息

上个世纪之交的中国人究竟过着什么样的生活？经历着怎样的动乱和变化？保持着哪些文化传统和陈规陋习？都市、乡村及社会各层面的具体状况如何？Chinese Characteristics（《中国人德行》）一书将为你解答这些问题。本书首版于1899年，作者arthur ***系100多年前在中国居住并深谙中国文化的美国人。

关键词：中国人 “面子” 德行节选 smith 文化传统中国文化美国人