43,258 results match your criteria stone surgery


Semi-supervised learning with progressive unlabeled data excavation for label-efficient surgical workflow recognition.

Med Image Anal 2021 Jul 8;73:102158. Epub 2021 Jul 8.

Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong; T Stone Robotics Institute, The Chinese University of Hong Kong, Hong Kong.

Surgical workflow recognition is a fundamental task in computer-assisted surgery and a key component of various applications in operating rooms. Existing deep learning models have achieved promising results for surgical workflow recognition, heavily relying on a large amount of annotated videos. However, obtaining annotation is time-consuming and requires the domain knowledge of surgeons. Read More

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Factors associated with the stone-free status after retrograde intrarenal surgery in children.

Int J Clin Pract 2021 Jul 28:e14667. Epub 2021 Jul 28.

Department of Urology, Faculty of Medicine, Hacettepe University, Ankara, Turkey.

Introduction: Pediatric urolithiasis has a recurrent nature because it is frequently associated with metabolic or anatomical disorders or infectious conditions. The rising incidence of the disease with its recurrent nature emphasizes the need for minimally invasive therapeutic options. In this study, we aimed to evaluate efficacy and factors affecting the success of retrograde intrarenal surgery (RIRS) in children. Read More

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Innominate vein turn-down procedure: Killing two birds with one stone.

JTCVS Tech 2021 Jun 18;7:253-260. Epub 2021 Mar 18.

Division of Pediatric Cardiovascular Surgery, Hospital Universitario Austral, Universidad Austral, Pilar, Buenos Aires, Argentina.

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Bronchobiliary fistula: a rare postoperative complication of spilled gallstones from laparoscopic cholecystectomy.

BMJ Case Rep 2021 Jul 27;14(7). Epub 2021 Jul 27.

Radiology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA

Bronchobiliary fistula (BBF) is defined as the abnormal connection between the biliary system and the bronchial tree, which presents clinically as an irritant cough with bilioptysis. Many conditions can lead to its development. We present a case of an acquired BBF in a 61-year-old man with a significant history of spilled gallstones from a prior laparoscopic cholecystectomy and subsequent presentation of intermittent right upper quadrant pain and recurrent pneumonia. Read More

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Assessing the optimal urine culture for predicting systemic inflammatory response syndrome after percutaneous nephrolithotomy and retrograde intrarenal surgery: results from a systematic review and meta-analysis.

J Endourol 2021 Jul 27. Epub 2021 Jul 27.

Ng Teng Fong General Hospital, 242949, Urology, Singapore, Singapore;

Background Systemic inflammatory response syndrome (SIRS) is a dangerous complication after percutaneous nephrolithotomy (PCNL) and retrograde intrarenal surgery (RIRS). We aimed to review the diagnostic accuracy of mid steam urine culture (MSUC), pelvic urine culture (PUC) and stone culture (SC) derived from the same cases to predict SIRS after PCNL and/or RIRS. Materials and methods A comprehensive literature search was performed, using MEDLINE, EMBASE, and Cochrane Central Controlled Register of Trials. Read More

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The impact of lasers in percutaneous nephrolithotomy outcomes: results from a systematic review and meta-analysis of randomized comparative trials.

J Endourol 2021 Jul 27. Epub 2021 Jul 27.

Ng Teng Fong General Hospital, 242949, Urology, Singapore, Singapore;

Background Percutaneous nephrolithotomy (PCNL) is the first choice treatment of renal stones larger than 2 cm. We aimed to evaluate if lasers perform as equal as non-laser devices in patients with kidney stones candidate to PCNL. Materials and methods A comprehensive literature search was performed in MEDLINE via PubMed, Scopus and Cochrane Central Register of Controlled Trials (CENTRAL) to assess the differences in the perioperative course, incidence of postoperative complications, and stone free-rate (SFR) in patients with kidney stones undergoing laser versus non-laser PCNL in randomized studies. Read More

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"The Sword in the Stone": radical excision of deep infiltrating endometriosis with bowel shaving-a single-centre experience on 703 consecutive patients.

Surg Endosc 2021 Jul 26. Epub 2021 Jul 26.

Department of Obstetrics and Gynecology, "Maggiore della Carità" Hospital, "Università del Piemonte Orientale", Corso Mazzini 18, 28100, Novara, Italy.

Background: Laparoscopic segmental bowel resection, disc excision and rectal shaving are described as surgical options for the treatment of bowel endometriosis, but the gold standard has not yet established. The aim of the study is to investigate the efficacy of the laparoscopic bowel shaving technique in terms of pain symptomatology and to analyse early and late postoperative complications.

Methods: Retrospective cohort study of a series of 703 consecutive patients treated between January 2014 and December 2019 in a tertiary care referral centre. Read More

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Heterogeneity of Accompanying Phenotypes and Genomic Variants Involved in Microtia.

J Craniofac Surg 2021 Jul 23. Epub 2021 Jul 23.

Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing Qilu Hospital of Shandong University, Jinan, China.

Objectives: The symptoms associated with microtia are ever-changing and not to stick to 1 pattern. The symptoms associated with microtia are constantly changing and are not set in stone. The aim of this article was to describe the various phenotypes from multiple systems found in microtitis patients included in the DatabasE of genomiC varIation and Phenotype in Humans using Ensembl Resources database, and to analyze possible pathogenic mutations. Read More

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Ectopic opening of the common bile duct into the duodenal bulb with recurrent choledocholithiasis: A case report.

World J Clin Cases 2021 Jul;9(19):5332-5338

The Fourth Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, China.

Background: Ectopic opening of the common bile duct is a condition with low incidence. Patients with an ectopic common bile duct opening have a high incidence of common bile duct stones and acute cholangitis. Patients with atypical symptoms and imaging findings are easily misdiagnosed; moreover, it is difficult to retrieve stones by endoscopic retrograde cholangiopancreatography, and common bile duct stones are prone to postsurgical recurrence. Read More

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Open Pyelolithotomy in the Presence of a Retro-Renal Colon: A Safe Alternative in Resource-Limited Settings.

Authors:
Adrian R Rhudd

Cureus 2021 Jun 22;13(6):e15827. Epub 2021 Jun 22.

Urology, Mount St John's Medical Center, St John's, ATG.

A retro-renal colon (RRC) is a rare but important anatomical variant to consider when planning percutaneous stone surgery. CT scanning of the abdomen is critical to detect this and to plan the surgical approach to avoid injury to the colon. In this case report, a 38-year-old woman with large obstructing bilateral symptomatic renal stones was found to have a left retro-renal colon on image review prior to left percutaneous nephrolithotomy. Read More

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New Horizons in the Treatment of Corneal Endothelial Dysfunction.

J Ophthalmol 2021 9;2021:6644114. Epub 2021 Jul 9.

Department of Ophthalmology, Hospital Regional de Málaga, Málaga, Spain.

The treatment of corneal endothelial dysfunction has experienced a revolutionary change in the past decades with the emergence of endothelial keratoplasty techniques: descemet stripping automated endothelial keratoplasty (DSAEK) and descemet membrane endothelial keratoplasty (DMEK). Recently, new treatments such as cultivated endothelial cell therapy, Rho-kinase inhibitors (ROCK inhibitors), bioengineered grafts, and gene therapy have been described. These techniques represent new lines of treatment for endothelial dysfunction. Read More

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Significance of TRPV5 and OPN biomarker levels in clinical diagnosis of patients with early urinary calculi.

Am J Transl Res 2021 15;13(6):6778-6783. Epub 2021 Jun 15.

Department of Urology Surgery, Hengshui People's Hospital Hengshui, China.

Objective: To investigate the clinical significance of the expression levels of transient receptor potential vanilloid 5 (TRPV5) and Osteopontin (OPN) biomarkers for the diagnosis of early-stage urinary stones.

Methods: A total of 48 calcium-containing kidney stone patients admitted to our hospital between February 2018 and February 2019 were selected as the experimental group in this study, and another 48 age-matched stone-free healthy individuals were selected as the control group, and the expression levels of TRPV5 and OPN biomarkers in the two groups were examined and compared with respect to related indicators.

Results: The urine oxalic acid content of the experimental group was found to be notably higher than the control group, while the citric acid content was lower; we observed higher levels of the 24-hour urine calcium content in the experimental group, while the citric acid/calcium ratio was remarkably lower; 24-hour urine magnesium and phosphorus levels of the two groups showed no marked difference; the mRNA expression levels of TRPV5 and OPN in the kidney tissues of the two groups were statistically different. Read More

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Non-guideline compliant EVAR in women is associated with increased mortality and re-intervention compared to men.

J Vasc Surg 2021 Jul 21. Epub 2021 Jul 21.

Division of Vascular Surgery & Endovascular Therapy, University of Florida, Gainesville, FL, USA.

Introduction: Sex based disparities in surgical outcomes have emerged as an important focus in contemporary healthcare delivery. Likewise, the appropriate utilization of endovascular AAA repair (EVAR) in the United States remains a subject of ongoing controversy, with a significant number of U.S. Read More

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The differentiation status of hair cells that regenerate naturally in the vestibular inner ear of the adult mouse.

J Neurosci 2021 Jul 23. Epub 2021 Jul 23.

The Virginia Merrill Bloedel Hearing Research Center and the Department of Otolaryngology-Head and Neck Surgery, University of Washington, Seattle WA, USA

Aging, disease and trauma can lead to loss of vestibular hair cells and permanent vestibular dysfunction. Previous work showed that, following acute destruction of ∼95% of vestibular hair cells in adult mice, ∼20% regenerate naturally (without exogenous factors) through supporting cell transdifferentiation. There is, however, no evidence for recovery of vestibular function. Read More

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Changes of renal function after retrograde intrarenal surgery using flexible ureteroscope in renal stone patients.

Transl Androl Urol 2021 Jun;10(6):2320-2331

Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, China.

Background: Retrograde intrarenal surgery (RIRS) is widely performed for renal stones. Theoretically, removing renal stones could prevent the deterioration of renal function. However, two studies reported that not all patients would see an increase in renal function after RIRS. Read More

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Obesity rates in renal stone formers from various countries.

Arch Ital Urol Androl 2021 Jun 30;93(2):189-194. Epub 2021 Jun 30.

U-merge Ltd. (Urology for emerging countries), London.

Objective: To collect evidence on the rate of obesity in renal stone formers (RSFs) living in different climatic areas and consuming different diets.

Materials And Methods: Data of adult renal stone formers were retrospectively collected by members of U-merge from 13 participant centers in Argentina, Brazil, Bulgaria (2), China, India, Iraq (2), Italy (2), Nigeria, Pakistan and Poland. The following data were collected: age, gender, weight, height, stone analysis and procedure of stone removal. Read More

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Phyllanthus niruri and Chrysanthellum americanum in association with potassium and magnesium citrates are able to prevent symptomatic episode in patients affected by recurrent urinary stones: A prospective study.

Arch Ital Urol Androl 2021 Jun 28;93(2):184-188. Epub 2021 Jun 28.

Department of Urology, University of Naples, Federico II, Naples.

Objective: The aim of this study is to evaluate the efficacy of a food supplement containing Phyllanthus niruri and Chrysanthellum americanum in association with potassium and magnesium citrates in the treatment and prophylaxis of urinary stones.

Materials And Methods: Eighty-two patients (mean age 49.7 ± 11. Read More

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Pediatric stone disease: Current management and future concepts.

Turk Arch Pediatr 2021 Mar 3;56(2):99-107. Epub 2021 Feb 3.

Department of Urology, İstanbul University-Cerrahpaşa, Cerahpaşa Faculty of Medicine, İstanbul, Turkey.

Treatment of pediatric urolithiasis consists of medical and surgical approaches. The main goal of the treatment is to prevent stone recurrence by avoiding multiple surgical interventions. In recent years, many innovations have been reported in the medical diagnostic evaluation protocol and in surgical treatment. Read More

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The Effect of Shock Wave Lithotripsy on Male and Female Sexual Dysfunction in Patients with Proximal Ureteral Stones.

Urol Int 2021 Jul 20:1-6. Epub 2021 Jul 20.

Department of Urology, Taksim Education and Research Hospital, Istanbul, Turkey.

Introduction: This study aims to investigate the effects of shock wave lithotripsy (SWL) treatment for proximal ureteral stones on the sexual functions of patients of both genders.

Methods: In this prospective study, 30 female and 72 male patients who had received SWL treatment for proximal ureteral stones in our clinic between August 2019 and October 2020 were evaluated. CT, creatinine, urinary analysis, and culture were performed during the initial consultation for all patients. Read More

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Application of S.T.O.N.E. Nephrolithometry Score for Prediction of Stone-Free Status and Complication Rates in Patients Who Underwent Percutaneous Nephrolitotomy for Renal Stone.

J Laparoendosc Adv Surg Tech A 2021 Jul 19. Epub 2021 Jul 19.

Department of Urology, Prof. Dr Cemil Tascioglu City Hospital, Istanbul, Turkey.

Renal stone disease is a common disorder in urology practice. Kidney stone has various treatment methods such as extracorporeal shock wave lithotripsy, retrograde intrarenal surgery, and percutaneous nephrolithotomy (PCNL). In this study, we aimed to determine the value of S. Read More

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The methyl donor S-adenosyl methionine reverses the DNA methylation signature of chronic neuropathic pain in mouse frontal cortex.

Pain Rep 2021 Jul-Aug;6(2):e944. Epub 2021 Jul 13.

Alan Edwards Centre for Research on Pain, McGill University, Montreal, QC, Canada.

Chronic pain is associated with persistent but reversible structural and functional changes in the prefrontal cortex (PFC). This stable yet malleable plasticity implicates epigenetic mechanisms, including DNA methylation, as a potential mediator of chronic pain-induced cortical pathology. We previously demonstrated that chronic oral administration of the methyl donor S-adenosyl methionine (SAM) attenuates long-term peripheral neuropathic pain and alters global frontal cortical DNA methylation. Read More

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Cost-Effectiveness of Retrograde Intrarenal Surgery, Standard and Mini Percutaneous Nephrolithotomy, and Shock Wave Lithotripsy for the Management of 1-2cm Renal Stones.

Urology 2021 Jul 15. Epub 2021 Jul 15.

Department of Urology, Mayo Clinic, Rochester, MN, USA. Electronic address:

Objective: To perform a cost-effectiveness evaluation comparing the management options for mid-size (1-2cm) renal stones including percutaneous nephrolithotomy (PCNL), retrograde intrarenal surgery (RIRS), and shockwave lithotripsy (SWL).

Methods: A Markov model was created to compare cost-effectiveness of PCNL, mini-PCNL, RIRS, and SWL for 1-2cm lower pole (index patient 1) and PCNL, RIRS, and SWL for 1-2cm non-lower pole (index patient 2) renal stones. A literature review provided stone free, complication, retreatment, secondary procedure rates, and quality adjusted life years (QALYs). Read More

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Normothermic ex vivo perfusion of the limb allograft depletes donor leukocytes prior to transplantation.

J Plast Reconstr Aesthet Surg 2021 Apr 11. Epub 2021 Apr 11.

3F66, Block 3, Alderley Park, Nether Alderley, Cheshire, SK10 4TG; The Ex-Vivo Lab, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom; The Transplant Centre, Manchester University NHS Foundation Trust, Manchester M23 9LT, United Kingdom. Electronic address:

Introduction: The donor immune compartment plays a central role in graft rejection of the vascularised composite allograft (VCA) by contributing to 'direct presentation'. Using our limb ex vivo normothermic machine perfusion (EVNP) protocol designed for prolonged allograft preservation, this study aimed to assess whether donor leukocytes responsible for allograft rejection are mobilised from the donor compartment.

Methods: Five genetically different pig forelimbs underwent perfusion via the brachial and radial collateral artery for 6 h after 2 h of cold storage. Read More

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From improved knowledge to certain technical revolutions: many advances in foot and ankle surgery.

Orthop Traumatol Surg Res 2021 Jul 14:103014. Epub 2021 Jul 14.

Department of Orthopedic Surgery and Traumatology. Ambroise Paré University Hospital. Assistance Publique - Hôpitaux de Paris. University Paris Saclay, 9 Avenue Charles de Gaulle, 92100 Boulogne Billancourt, France. Electronic address:

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Should we treat asymptomatic concurrent contralateral renal stones? A longitudinal analysis.

Urolithiasis 2021 Jul 16. Epub 2021 Jul 16.

Department of Urology, University of Wisconsin School of Medicine and Public Health, Medical Foundation Centennial Building, 1685 Highland Avenue, Madison, WI, 53705, USA.

The objective is to explore the need for future surgery among patients treated for asymptomatic concurrent contralateral stones versus those that were not. Upon IRB approval, we retrospectively reviewed records of patients who underwent stone surgeries (SWL, URS, PCNL) from 2009 to 2018. Patients were included if they were greater than 18 years old, had a minimum follow-up of 2 years, and had pre-operative imaging. Read More

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Multidisciplinary assessment of the Abbott BinaxNOW SARS-CoV-2 point-of-care antigen test in the context of emerging viral variants and self-administration.

Sci Rep 2021 07 16;11(1):14604. Epub 2021 Jul 16.

The Atlanta Center for Microsystems-Engineered Point-of-Care Technologies, Atlanta, Georgia.

While there has been significant progress in the development of rapid COVID-19 diagnostics, as the pandemic unfolds, new challenges have emerged, including whether these technologies can reliably detect the more infectious variants of concern and be viably deployed in non-clinical settings as "self-tests". Multidisciplinary evaluation of the Abbott BinaxNOW COVID-19 Ag Card (BinaxNOW, a widely used rapid antigen test, included limit of detection, variant detection, test performance across different age-groups, and usability with self/caregiver-administration. While BinaxNOW detected the highly infectious variants, B. Read More

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Assessment of Effect of Implant Angulation and Implant Number on the Dimensional Accuracy of Definitive Casts.

J Contemp Dent Pract 2021 Apr 1;22(4):394-399. Epub 2021 Apr 1.

Department of Oral Surgery, Baba Jaswant Singh Dental College, Hospital and Research Institute, Ludhiana, Punjab, India.

Aim: To analyze the impact of implant angulation and implant number on the dimensional accuracy of definitive casts.

Materials And Methods: Seven definitive casts with implant analogs placed in a triangular pattern were made from dental stone. The groups were as follows: group 1 (control group) all implant analogs perpendicular to the plane of the cast; the center implant analog (implant 2) being at 90° to the plane of the cast in all groups and implant analogs number 1 and 3 arranged in 5°, 10°, or 15° divergence from or convergence to the center implant (implant number 2). Read More

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A new model to assist decision-making of optimal antibiotics duration for treating asymptomatic bacteriuria or pyuria prior to retrograde intrarenal surgery.

Minerva Urol Nephrol 2021 Jul 15. Epub 2021 Jul 15.

Department of Urology, Minimally Invasive Surgery Center, Guangzhou Institute of Urology, Guangdong Key Laboratory of Urology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China -

Background: To establish a model that predicts postoperative fever and enables decision-making regarding optimal antibiotic therapy duration for asymptomatic bacteriuria or pyuria prior to retrograde intrarenal surgery (RIRS).

Methods: We retrospectively investigated 667 consecutive patients with asymptomatic bacteriuria or pyuria who underwent RIRS between September 2016 and December 2019. We constructed a predictive nomogram for risk quantification of postoperative infection. Read More

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Clinical and molecular relevance of genetic variants in the non-coding transcriptome of patients with cytogenetically normal acute myeloid leukemia.

Haematologica 2021 Jul 15. Epub 2021 Jul 15.

The Ohio State University, Comprehensive Cancer Center, Columbus.

Expression levels of long non-coding RNAs (lncRNAs) have been shown to associate with clinical outcome of patients with cytogenetically normal acute myeloid leukemia (CN-AML). However, the frequency and clinical significance of genetic variants in the nucleotide sequences of lncRNAs in AML patients is unknown. Herein, we analyzed total RNA sequencing data of 377 younger adults (aged. Read More

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Seroprevalence of SARS-CoV-2 infection in Cincinnati Ohio USA from August to December 2020.

PLoS One 2021 14;16(7):e0254667. Epub 2021 Jul 14.

Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, United State of America.

The world is currently in a pandemic of COVID-19 (Coronavirus disease-2019) caused by a novel positive-sense, single-stranded RNA β-coronavirus referred to as SARS-CoV-2. Here we investigated rates of SARS-CoV-2 infection in the greater Cincinnati, Ohio, USA metropolitan area from August 13 to December 8, 2020, just prior to initiation of the national vaccination program. Examination of 9,550 adult blood donor volunteers for serum IgG antibody positivity against the SARS-CoV-2 Spike protein showed an overall prevalence of 8. Read More

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