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Outcomes of a non-randomised audit of single pigtail suture stents in urolithiasis management of Asian patients in Singapore

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Asian Journal of Urology 2024年第2期11卷 324-330页

作者： Ee Jean Lim Zhen Wei Choo Reshma Mangat Pradeep Durai Sarvajit Biligere Yiquan Tan Loh Hin Yeung Marcus Nicole Andrea seet Li Ting Chin Tiong Heng Stefania Ferreti Vineet Gauhar Urology Department Singapore General HospitalSingapore Urology Department Tan Tock Seng HospitalSingapore Urology Department Ng Teng Fong HospitalSingapore Urology Department Azienda Ospedaliera-Uiversitaria(Hospital and University of Parma)ParmaItaly

Objective:Double-J(DJ)ureteric stents are commonly placed perioperatively for semirigid or flexible ureteroscopic renal *** is believed that lesser stent material within the bladder mitigates stent-related *** study aimed to evaluate the J-Fil ureteral stent,a single pigtail suture stent compared with conventional DJ stent in relation to stent symptoms in an Asian population undergoing ureterorenal ***:Based on internal audit committee recommendation approval,the records of 50 patients retrieved,available data of 41 patients who were prospectively enrolled into two groups(Group 1[J-Fil stent group],n=21 and Group 2[DJ stent group],n=20)between August 2020 to January 2021,were *** compared were nature of procedure,stone location and size,ease of deployment or removal,and complications.A modified universal stent symptom questionnaire was used to assess morbidity of stent symptoms within 48 h of insertion and at ***:Both groups had similar median age,distribution in male to female ratio,and stone *** overall median universal stent symptom questionnaire score at insertion was similar for bladder pain,flank or loin pain,and quality of life between Group 1 and 2;however,at removal Group 1 fared significantly better than Group 2,especially for flank or loin pain and pain at *** groups had similar ease in insertion with no hospital ***:Our audit favoured the single pigtail suture stent in Asian ureters in mitigating stent-related *** showed a good safety profile with easy deployment and *** promises a new standard in stenting.

关键词： Stent Ureteroscopy Pigtail suture stent Asianpatient Flexible ureteroscopic renal surgery

Acute opioid-induced gastroparesis successfully treated with naloxone: a case report

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Emergency and Critical Care Medicine 2023年第2期3卷 78-80页

作者： Hao Rui seet Joe-Anthony Rotella Department of Emergency Medicine Northern HealthEppingVictoriaAustralia

A 56-year-old man presented to the emergency department after an intentional overdose of oxycodone and *** was previously opioid-naive with no other medical *** subsequently developed acute abdominal pain with nausea and vomiting.A computed tomography scan of his abdomen and pelvis revealed distension of his stomach with no other abnormalities suggestive *** was subsequently treated with intravenous naloxone with complete resolution of his symptoms soon *** case highlights the association between opioids and acute gastrointestinal mobility disorders contrary to the traditional association with chronic opioid use,as well as the utility of naloxone as a treatment.

关键词： Case report Gastroparesis Naloxone Opioids

Analysis of the corrosion performance of binder jet additive manufactured magnesium alloys for biomedical applications

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Journal of Magnesium and Alloys 2022年第5期10卷 1296-1310页

作者： Kai Xiang Kuah Daniel J.Blackwood Wee Kit Ong Mojtaba Salehi Hang Li seet Mui Ling Sharon Nai Sudesh Wijesinghe Department of Materials Science&Engineering National University of Singapore9 Engineering Drive 1117575 Singapore Reliability and Characterisation Unit Singapore Institute of Manufacturing Technology(SIMTech)Agency forScienceTechnology and Research(A^(∗)STAR)73 Nanyang Drive637662 Singapore Additive Manufacturing Group Singapore Institute of Manufacturing Technology(SIMTech)Agency forScienceTechnology and Research(A^(∗)STAR)73 Nanyang Drive637662 Singapore

Binder jet printing(BJP)is a state-of-the-art additive manufacturing technique for producing porous magnesium *** MgZn-Zr based BJP samples were assessed for corrosion performance in simulated body fluids by electrochemical and hydrogen evolution *** corrosion rates of the BJP specimens were significantly higher than solid controls,even after accounting for their larger surface areas,suggesting that the BJP microstructure is detrimental to corrosion performance.X-ray computed tomography revealed nonuniform corrosion within the porous structure,with corrosion products forming on the pore *** the pores with hydroxyapatite or polymers greatly improved the corrosion resistance of the BJP samples.

关键词： Magnesium Additive manufacturing Binder jetting Porous Corrosion Biodegradability

Real-time Visual Odometry Estimation Based on Principal Direction Detection on Ceiling Vision

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International Journal of Automation and computing 2013年第5期10卷 397-404页

作者： Han Wang Wei Mou Gerald seet Mao-Hai Li M.W.S.Lau Dan-Wei Wang School of Electrical and Electronics Engineering Nanyang Technological University School of Mechanical and Aerospace Engineering Nanyang Technological University School of Mechanical and Electrical Engineering Soochow University School of Mechanical and System Engineering Newcastle University

In this paper,we present a novel algorithm for odometry estimation based on ceiling *** main contribution of this algorithm is the introduction of principal direction detection that can greatly reduce error accumulation problem in most visual odometry estimation *** principal direction is defned based on the fact that our ceiling is flled with artifcial vertical and horizontal lines which can be used as reference for the current robot s heading *** proposed approach can be operated in real-time and it performs well even with camera s disturbance.A moving low-cost RGB-D camera（Kinect）,mounted on a robot,is used to continuously acquire point *** closest point（ICP） is the common way to estimate the current camera position by registering the currently captured point cloud to the previous ***,its performance sufers from data association problem or it requires pre-alignment *** performance of the proposed principal direction detection approach does not rely on data association *** this method,two point clouds are properly ***,we can use ICP to fne-tune the transformation parameters and minimize registration *** results demonstrate the performance and stability of the proposed system under disturbance in *** indoor tests are carried out to show that the proposed visual odometry estimation method can help to signifcantly improve the accuracy of simultaneous localization and mapping（SLAM）.

关键词： Visual odometry ego-motion principal direction ceiling vision simultaneous localization and mapping(SLAM)

Alanine aminotransferase is an inadequate surrogate marker for detecting lamivudine resistance

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World Journal of Gastroenterology 2010年第37期16卷 4691-4696页

作者： Lee Guan Lim Myat Oo Aung Bee Leng seet Cindy Tan Yock Young Dan Yin Mei Lee Dede Selamat Sutedja Mark Fernandes Guan Huei Lee Evelyn Koay Seng Gee Lim Department of Gastroenterology and Hepatology National University Health System Yong Yoo Lin School of Medicine National University of Singapore Department of Medicine National University Health System Yong Yoo Lin School of Medicine National University of Singapore Molecular Diagnostic Centre National University Health System Yong Yoo Lin School of Medicine National University of Singapore Investigative Medicine Unit National University Health System Yong Yoo Lin School of Medicine National University of Singapore

AIM: To investigate the accuracy of serum alanine aminotransferase (ALT) in diagnosing lamivudine resistance and factors that contributed to abnormal serum ***: This was a retrospective study of chronic hepatitis B patients on lamivudine therapy who were followed for 3-mo with liver function tests and hepatitis B virus (HBV) DNA measurement. Lamivudine resistance was defined as HBV DNA ≥ 1 log from nadir on at least 2 occasions, confirmed by genotyping. Serum ALT levels in patients with lamivudine resistance were compared to serum ALT levels in those without lamivudine resistance. RESULTS: There were 111 patients with and 117 without lamivudine resistance. The area under the receiver operating characteristic of serum ALT to diagnose lamivudine resistance was 0.645 ± 0.037. Serum ALT > 42.5 U/L gave the best diagnostic accuracy with sensitivity = 61%, specificity = 60%, positive predictive value = 60%, negative predictive value = 61%, positive likelihood ratio = 1.53 and negative likelihood ratio = 0.65 for predicting lamivudine resistance, missing 39% of resistant patients. Using other serum ALT cutoffs, diagnostic accuracy was lower. By multivariate analysis, baseline abnormal serum ALT was associated with abnormal ALT during resistance (OR = 5.98, P = 0.003), and males were associated with serum ALT flares during resistance (OR = 8.9, P = 0.016). CONCLUSION: Serum ALT is inadequate for diagnosing lamivudine resistance and has implications where viral resistance testing is suboptimal and for reimbursement of rescue therapy.

关键词： Antiviral therapy Chronic hepatitis B Sensitivity Specificity YMDD mutants

Expert consensus on difficult airway assessment

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Hepatobiliary Surgery and Nutrition 2023年第4期12卷 545-566页

作者： Ming Xia Wuhua Ma Mingzhang Zuo Xiaoming Deng Fushan Xue Denise Battaglini Vivek Aggarwal Giustino Varrassi Vladimir Cerny Ida Di Giacinto Rita Cataldo Daqing Ma Toru Yamamoto Martina Rekatsina Alessandro De Cassai Andrea Carsetti Marvin G.Chang Edwin seet Daniel P.Davis Michael G.Irwin Yuguang Huang Hong Jiang Department of Anesthesiology Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Anesthesiology The First Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhouChina Department of Anaesthesiology Beijing HospitalNational Center of GerontologyInstitute of Geriatric MedicineChinese Academy of Medical ScienceBeijingChina Department of Anesthesiology Plastic Surgery HospitalCAMS and PUMCBeijingChina Department of Anesthesiology Beijing Friendship HospitalCapital Medical UniversityBeijingChina Anesthesia and Intensive Care San Martino Policlinico HospitalIRCCS for Oncology and NeuroscienceGenoaItaly Department of Conservative Dentistry&Endodontics Jamia Millia IslamiaNew DelhiIndia Paolo Procacci Foundation RomaItaly Department of Anaesthesiology and Intensive Care Medicine University Hospital Hradec KraloveHradec KraloveCzech Republic Unit of Anesthesia and Intensive Care Mazzoni HospitalAscoli PicenoItaly Unit of Anaesthesia Intensive Care and Pain ManagementDepartment of MedicineUniversitàCampus Bio-Medico of RomeRomaItaly Division of Anaesthetics Pain Medicine&Intensive CareDepartment of Surgery&CancerFaculty of MedicineImperial College Londonand Chelsea and Westminster HospitalLondonUK Division of Dental Anesthesiology Graduate School of Medicine and Dental SciencesNiigata UniversityNiigataJapan Department of Anaesthesiology National and Kapodistrian University of AthensAthensGreece Institute of Anesthesia and Intensive Care Unit University Hospital of PaduaPaduaItaly Department of Biomedical Sciences and Public Health UniversitàPolitecnica delle MarcheAnconaItaly Anesthesia and Intensive Care Unit Azienda Ospedaliero Universitaria delle MarcheAnconaItaly Department of Anesthesia Critical Careand Pain MedicineMassachusetts General HospitalBostonMAUSA Lee Kong Chian School of Medicine Nanyang Technological UniversitySingaporeSingapore Department of Anaesthesia Yong Loo Lin School of Medic

Background:Identifying a potentially difficult airway is crucial both in anaesthesia in the operating room(OR)and non-operation room *** are no guidelines or expert consensus focused on the assessment of the difficult airway before,so this expert consensus is developed to provide guidance for airway assessment,making this process more standardized and accurate to reduce airway-related complications and improve ***:Seven members from the Airway Management Group of the Chinese Society of Anaesthesiology(CSA)met to discuss the first draft and then this was sent to 15 international experts for review,comment,and *** Grading of Recommendations,Assessment,Development and Evaluation(GRADE)is used to determine the level of evidence and grade the strength of *** recommendations were revised through a three-round Delphi survey from ***:This expert consensus provides a comprehensive approach to airway assessment based on the medical history,physical examination,comprehensive scores,imaging,and new developments including transnasal endoscopy,virtual laryngoscopy,and 3D *** addition,this consensus also reviews some new technologies currently under development such as prediction from facial images and voice information with the aim of proposing new research directions for the assessment of difficult ***:This consensus applies to anesthesiologists,critical care,and emergency physicians refining the preoperative airway assessment and preparing an appropriate intubation strategy for patients with a potentially difficult airway.

关键词： Expert consensus difficult airway airway management

Mobile Robot Ego Motion Estimation using RANSAC-based Ceiling Vision

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Mobile Robot Ego Motion Estimation using RANSAC-based Ceilin...

第24届中国控制与决策会议

作者： Minh Hiep Ly M.W.S. Lau Gerald seet School of Electrical ＆ Electronic Engineering Nanyang Technological University

Visual odometry is a commonly used technique for recovering motion and location of the robot. In this paper, we present a robust visual odometry estimation approach based on ceiling view from 3D camera （Kinect）. We extracted Speed- up Robust Features （SURF） from the monocular image frames retrieved from the camera. SURF features from two consecutive frames are matched by finding the nearest neighbor using KD- tree. 3D information of the SURF features are retrieved using the camera’s depth map. The 3D affine transformation model is estimated between these two frames based on Random Sample Consensus （RANSAC） method. All inliers are then used to reestimate the relative transformation between two frames by Singular Value Decomposition （SVD）. Given this, the global robot position and orientation can be calculated. Experimental results demonstrate the performance of the proposed algorithm in real environments.

关键词： Visual Odometry Ceiling vision RANSAC SURF

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化脓性肝脓肿病因,治疗和结果的变化

世界医学杂志 1997年第2期1卷 24-35页

作者： seet,RK 陈国璋

水稻不育系和保持系中影响异交的性状的遗传多样性

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国外作物育种 1997年第4期16卷 4-6页

作者： seet.,KV 向平