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International consensus guidelines on robotic pancreatic surgery in 2023

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Hepatobiliary Surgery and Nutrition 2024年第1期13卷 89-104页

作者： Rong Liu Mohammed Abu Hilal Marc G.Besselink Thilo Hackert Chinnusamy Palanivelu Yupei Zhao Jin He Ugo Boggi Jin-Young Jang Fabrizio Panaro Brian K.P.Goh Mikhail Efanov Yuichi Nagakawa Hong-Jin Kim Xiaoyu Yin Zhiming Zhao Yi-Ming Shyr Shridhar Iyer Eli Kakiashvili Ho-Seong Han Jae Hoon Lee Roland Croner Marco Vito Marino arun prasad Wei Wang Songqing He Kehu Yang Qu Liu Zizheng Wang Mengyang Li Shuai Xu Kongyuan Wei Zhaoda Deng Yuze Jia Tess M.E.van Ramshorst Faculty of Hepatopancreatobiliary Surgery The First Medical Center of Chinese People’s Liberation Army(PLA)General HospitalBeijingChina Department of Surgery Poliambulanza Foundation HospitalBresciaItaly Department of Surgery University Hospital Southampton NHS Foundation TrustSouthamptonUK Amsterdam UMC location University of AmsterdamDepartment of SurgeryAmsterdamThe Netherlands Cancer Center Amsterdam AmsterdamThe Netherlands Department of General Visceral and Thoracic SurgeryUniversity Hospital Hamburg-EppendorfHamburgGermany Department of Minimal Invasive Hernia Surgery GEM Hospital and Research CentreChennaiTamil NaduIndia Department of General Surgery Peking Union Medical College Hospital BeijingBeijingChina Department of Surgery Johns Hopkins University School of MedicineBaltimoreMDUSA Division of General and Transplant Surgery University of PisaPisaItaly Department of Surgery Seoul National University HospitalSeoul National University College of MedicineSeoulKorea Department of Surgery/Division of HBP Surgery&Transplantation University of MontpellierMontpellierFrance Department of Hepatopancreatobiliary and Transplant Surgery Singapore General Hospital and National Cancer Centre SingaporeSingaporeSingapore Department of Hepato-Pancreato-Biliary Surgery Moscow Clinical Scientific CenterMoscowRussia Department of Gastrointestinal and Pediatric Surgery Tokyo Medical UniversityShinjukuTokyoJapan Department of Surgery Yeungnam University College of MedicineDaeguKorea Department of Pancreato-Biliary Surgery The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouChina 18 Division of Hepatobiliary Pancreatic Surgery and Liver TransplantationNational University HospitalSingaporeSingapore Department of Surgery Galilee Medical CenterNahariyaIsrael Department of Surgery Seoul National University Bundang HospitalSeoul National University College of MedicineSeongnam-siKorea Division of Hepato-Biliary and Pancreatic Surgery Department of SurgeryAsan Medical Cente

Background:With the rapid development of robotic surgery,especially for the abdominal surgery,robotic pancreatic surgery(RPS)has been applied increasingly around the ***,evidence-based guidelines regarding its application,safety,and efficacy are still *** harvest robust evidence and comprehensive clinical practice,this study aims to develop international guidelines on the use of ***:World Health Organization(WHO)Handbook for Guideline Development,GRADE Grid method,Delphi vote,and the AGREE-II instrument were used to establish the Guideline Steering Group,Guideline Development Group,and Guideline Secretary Group,formulate 19 clinical questions,develop the recommendations,and draft the *** online meetings were held on 04/12/2020,30/11/2021,and 25/01/2022 to vote on the recommendations and get advice and suggestions from all involved *** the experts focusing on minimally invasive surgery from America,Europe and Oceania made great contributions to this consensus ***:After a systematic literature review 176 studies were included,19 questions were addressed and 14 recommendations were developed through the expert assessment and comprehensive judgment of the quality and credibility of the ***:The international RPS guidelines can guide current practice for surgeons,patients,medical societies,hospital administrators,and related social *** randomized trials are required to determine the added value of RPS as compared to open and laparoscopic surgery.

关键词： Robotic surgery guidelines pancreatectomy pancreaticoduodenectomy distal pancreatectomy(DP)

Spectral characteristics of banded iron formations in Singhbhum craton,eastern India:Implications for hematite deposits on Mars

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Geoscience Frontiers 2016年第6期7卷 927-936页

作者： Mahima Singh Jayant Singhal K.arun prasad V.J.Rajesh Dwijesh Ray Priyadarshi Sahoo Department of Earth and Space Science Indian Institute of Space Science and TechnologyValiamala P.O.Thiruvananthapuram 695 547India physical Research Laboratory NavrangpuraAhmedabad 380009India Geological Survey of India State Unit:OdishaNuipalliBhubaneswar 751012India

Banded iron formations （BIFs） are major rock units having hematite layers intermittent with silica rich layers and formed by sedimentary processes during late Archean to mid Proterozoic time. In terrestrial environment, hematite deposits are mainly found associated with banded iron formations. The BIFs in Lake Superior （Canada） and Carajas （Brazil） have been studied by planetary scientists to trace the evolution of hematite deposits on Mars. Hematite deposits are extensively identified in Meridiani region on Mars. Many hypotheses have been proposed to decipher the mechanism for the formation of these deposits. On the basis of geomorphological and mineralogical studies, aqueous environment of deposition is found to be the most supportive mechanism for its secondary iron rich deposits. In the present study, we examined the spectral characteristics of banded iron formations of Joda and Daitari located in Singhbhum craton in eastern India to check its potentiality as an analog to the aqueous/marine environment on Mars. The prominent banding feature of banded iron formations is in the range of few millimeters to few centimeters in thickness. Fe rich bands are darker （gray） in color compared to the light reddish jaspilitic chert bands. Thin quartz veins （〈4 mm） are occasionally observed in the handspecimens of banded iron formations. Spectral investigations have been conducted in VIS/NIR region of electromagnetic spectrum in the laboratory conditions. Optimum absorption bands identified include 0.65, 0.86, 1.4 and 1.9 μm, in which 0.56 and 0.86 μm absorption bands are due to ferric iron and 1.4 and 1,9 μm bands are due to OH/H2O. To validate the mineralogical results obtained from VlS/NIR spectral radiometry, laser Raman and Fourier transform infrared spectroscopic techniques were utilized and the results were found to be similar. Goethite-hematite association in banded iron formation in Singhbhum craton suggests dehydration activity, which has altered the primary iron ox

关键词： Banded iron formation Singhbhum craton VIS/NIR spectroscopy Raman spectroscopy Terrestrial analog Mars

Optimization of AWJM Process Parameters on 3D-Printed Onyx-Glass Fiber Hybrid Composite

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哈尔滨工业大学学报:英文版 2023年第2期30卷 84-98页

作者： Dharmalingam G arun prasad M Deepak Panghal Sachin Salunkhe Siva kumar M Rathinasuriyan C Department of Mechanical Engineering Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and TechnologyAvadiChennai-600062Tamil NaduIndia Department of Fashion Technology National Institute of Fashion TechnologyNew Delhi-11016India

Compared with conventional manufacturing methods, the additive manufacturing technique enhances mechanical properties. The present investigation of additive manufacturing technique is focused on delamination studies of Onyx-Glass Fiber Hybrid Polymer Composite(OGFHPC) along with surface roughness properties during machining(drilling) of composites through abrasive water jet machining(AWJM). However, delamination is a major issue during machining of OGFHPC. In order to overcome these drawbacks, the fabrication of OGFHPC was carried out using fused deposition modeling(FDM) technology which is an additive manufacturing method with Mark forged Mark Two 3D-composite printer. The machinability studies were conducted for drilling operation through AWJM process with different abrasive mass flow rates, drilling diameters and traverse speeds. These drilling machinability process parameters were optimized through the design of experiments-Taguchi analysis followed by the analysis of variance(ANOVA) and validated through the Harmony Search Algorithm(HSA), Whale Optimization Algorithm(WOA) and Grey Wolf Optimization Algorithm(GWO). It was observed that minimum delamination and surface roughness of OGFHPC were optimized for AWJM at abrasive mass flow rates(450 g/min), drilling diameters(12 mm) and traverse speed rate(30 mm/min).

关键词： Onyx-Glass composite fused deposition modeling AWJM delamination surface roughness Taguchi analysis

Robotic assisted Roux-en-Y hepaticojejunostomy in a post-cholecystectomy type E2 bile duct injury

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World Journal of Gastroenterology 2015年第6期21卷 1703-1706页

作者： arun prasad Sudipto De Purak Mishra Abhishek Tiwari Department of Minimal Access and Robotic Surgery Apollo Hospital

Roux-en-Y hepaticojejunostomy anastomosis is the treatment of choice for common hepatic duct injury type *** has been performed laparoscopically with the advancement of laparoscopic ***,a telemanipulative robotic surgical system was introduced,providing laparoscopic instruments with wrist-arm technology and 3-dimensional visualization of theoperative *** present a case of 36-year-old female patient who had undergone elective cholecystectomy2 mo ago for gall stones and had a common bile duct injury during *** the stricture was old and complete it could not be tackled *** did a laparoscopic assisted adhesiolysis followed by robotic Roux-en-Y *** intraoperative complications or technical problems were *** period was uneventful and she was discharged on the 4th postoperative *** followup,she is doing well without evidence of jaundice or *** is the first reported case of robotic hepaticojejunostomy following common bile duct *** hybrid technique gives the patient benefit of laparoscopic adhesiolysis and robotic suturing.

关键词： Hepaticojejunostomy Common bile duct Robotic surge

Impact of Fin Arrangement on Heat Transfer and Melting Characteristics of Phase Change Material

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Journal of Thermal Science 2024年第2期33卷 435-456页

作者： arun UNIYAL Yogesh K.PRAJAPATI Department of Mechanical Engineering National Institute of Technology UttarakhandSrinagar(Garhwal)246174India Department of Mechanical Engineering BIT SindriDhanbadJharkhand828123India

Present work investigates the heat transfer and melting behaviour of phase change material(PCM) in six enclosures(enclosure-1 to 6) filled with paraffin *** enclosures are equipped with distinct arrangements of the fins while keeping the fin's surface area equal in each *** analysis has been presented to recognize the suitable fin arrangements that facilitate improved heat transfer and melting rate of the *** wall of the enclosure is maintained isothermal for the temperature values 335 K,350 K and 365 *** length of the enclosure including fins is ranging between 0 and *** have been illustrated through the estimation of important performance parameters such as energy absorbing capacity,melting rate,enhancement ratio,and Nusselt *** has been found that melting time(to melt 100% of the PCM) is 60.5%less in enclosure-2(with two fins of equal length) as compared to the enclosure-1,having no *** the fin surface area equal,if the longer fin is placed below the shorter fin(enclosure-3),melting time is further decreased by 14.1% as compared to ***,among all the configurations,enclosure-6 with wire-mesh fin structure exhibits minimum melting time which is 68.4% less as compared to the *** on the findings,it may be concluded that fins are the main driving agent in the enclosure to transfer the heat from heated wall to the *** design and positioning of the fins improve the heat transfer rate followed by melting of the PCM in the entire area of the *** of the favourable vortices and natural convection current in the enclosure accelerate the melting phenomenon and help to reduce charging time.

关键词： phase change material enclosure fin melting fraction energy storage heat transfer

Postoperative delirium:A tragedy for elderly cancer patients

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World Journal of Gastrointestinal Oncology 2024年第9期16卷 3765-3770页

作者： Oguzhan arun Funda arun Department of Anesthesiology and Reanimation Selcuk University Faculty of MedicineKonya 42130Türkiye Department of Pedodontics Division of AnesthesiologySelcuk University Faculty of DentistryKonya 42130Türkiye

In this editorial,we comment on the article by Hu et al entitled“Predictive modeling for postoperative delirium in elderly patients with abdominal malignancies using synthetic minority oversampling technique”.We wanted to draw attention to the general features of postoperative delirium(POD)as well as the areas where there are uncertainties and *** can be defined as acute neurocognitive dysfunction that occurs in the first week after *** is a severe postoperative complication,especially for elderly oncology *** the underlying pathophysiological mechanism is not fully understood,various neuroinflammatory mechanisms and neurotransmitters are thought to be *** assessment scales and diagnostic methods have been proposed for the early diagnosis of *** delirium is considered a preventable clinical entity in about half of the cases,various early prediction models developed with the support of machine learning have recently become a hot scientific ***,a model with high sensitivity and specificity for the prediction of POD has not yet been *** situation reveals that all health personnel who provide health care services to elderly patients should approach patients with a high level of awareness in the perioperative period regarding POD.

关键词： Delirium Anesthesia Neurocognitive dysfunction Postoperative cognitive dysfunction Prevention Risk management Synthetic minority oversampling technique Postoperative delirium Elderly patients Abdominal cancer

Controlled deployment of a long tether to operate as a partial space elevator

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Astrodynamics 2024年第2期8卷 311-321页

作者： Jinbang Huang arun K.Misra Department of Mechanical Engineering McGill UniversityMontrealQCH3A 0C3Canada

The deployment of a long tether to operate as a partial space elevator,starting from a nucleus in geostationary orbit,is *** deployment is an inherently unstable process because the center of orbit gradually decreases from the geostationary altitude when deployment *** is also observed that the elasticity of the tether has an important effect on deployment *** is shown that the application of a transverse force on the main spacecraft,determined by using linear state feedback and appropriate gains,can stabilize the *** LQR controller is *** of the dynamics of the system are carried out using this controller for various parametric values of tether elasticity,deployment rates,etc.,to evaluate the efficacy of the controller.

关键词： tether space elevator deployment stability control

Optimal timing for plastic surgical procedures for common congenital anomalies:A review

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World Journal of Clinical Pediatrics 2024年第2期13卷 38-61页

作者： Aakanksha Goel arun Goel Divine Aesthetic Surgery New Delhi 110048India Department of Plastic Surgery Lok Nayak Hospital and Associated Maulana Azad Medical CollegeNew Delhi 110002India

Apart from listening to the cry of a healthy newborn,it is the declaration by the attending paediatrician in the labour room that the child is normal which brings utmost joy to *** global incidence of children born with congenital anomalies has been reported to be 3%-6%with more than 90%of these occurring in low-and middle-income group *** exact percentages/total numbers of children requiring surgical treatment cannot be estimated for several *** children are operated under several surgical disciplines,viz,paediatric-,plastic reconstructive,neuro-,cardiothoracic-,orthopaedic surgery *** conditions may be life-threatening,e.g.,trachea-oesophageal fistula,critical pulmonary stenosis,*** require immediate surgical ***,e.g.,hydrocephalus,may need intervention as soon as the patient is fit for ***,e.g.,patent ductus arteriosus need‘wait and watch’policy up to a certain age in the hope of spontaneous *** extremely important category is that of patients where the operative intervention is done based on their *** all the congenital anomalies coming under care of a plastic surgeon are operated as elective surgery(many as multiple stages of correction)at appropriate *** are advantages and disadvantages of intervention at different *** this article,we present a review of optimal timings,along with reasoning,for surgery of many of the common congenital anomalies which are treated by plastic ***,paediatricians and general practitioners/family physicians,who most often are the first ones to come across such children,must know to guide the parents appropriately and convincingly impress upon the them as to why their child should not be operated immediately and also the consequences of too soon or too late.

关键词： Plastic surgery Congenital anomalies Pediatric plastic surgery Facial cleft Microtia Vascular anomalies Syndactyly Hypospadias Optimal timing Pediatric surgery

A comprehensive review of rectangular duct solar air heaters featuring artificial roughness

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Clean Energy 2024年第5期8卷 186-217页

作者： Ravi Shankar Rajeev Kumar arun Kumar Pandey Deep Singh Thakur Department of Mechanical Engineering Rajkiya Engineering College BandaUttar Pradesh 210201India Department of Mechanical Engineering Institute of Engineering&TechnologyLucknowUttar Pradesh 226021India Department of Mechanical Engineering Bundelkhand Institute of Engineering&TechnologyJhansiUttar Pradesh 284128India

Solar air heaters(SAHs)are widely used solar thermal systems with applications in diverse ***,its effectiveness is re-strained by low convective heat transfer(HT)coefficients at the absorber plate,leading to inefficient HT,and the elevated temperature of the absorber plate causes significant heat losses,reducing thermal *** study addresses these challenges by introducing ribs or roughness on the absorber plate creating turbulence in the airflow,resulting in significant *** research inves-tigates various rib configurations,the influence of rib parameters,performance methods,and arrangements to evaluate their HT and friction *** these rib configurations,a comparative analysis is done on various factors such as the Nusselt number ratio,thermal enhancement factor,friction factor ratio,and thermal efficiency to optimize distinct roughness parameters and rib ar-rangement *** study also provides valuable recommendations from existing literature,offering insights into the effective design,prospects,and implementation of SAH systems.

关键词： solar air heater artificial roughness low heat transfer heating solar energy