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Staged liver resection for colorectal metastases:a valuable strategy or a waste of time?

Hepatobiliary & Pancreatic Diseases International 2010年第6期9卷 600-604页

作者： raaj chandra Charles HC Pilgrim Val Usatoff The Alfred Hospital Upper Gastrointestinal/Hepatobiliary Surgery Unit

BACKGROUND:The use of staged liver resections for colorectal metastases has been increasing in recent *** aim of this study was to determine the practices and outcomes of those surgeons attending the Australia and New Zealand Hepatic, Pancreatic and Biliary Association(ANZHPBA)meeting in 2008 who perform staged resections. METHODS:A questionnaire was sent to all members of the ANZHPBA and the international faculty who were invited to attend the annual meeting held in Coolum,Queensland, Australia in October 2008. RESULTS:There were 30 responses from 7 centres across the UK,Germany and ***-eight patients completed *** study population was predominantly male (n=20,67%),with an average age of 59.4 *** patients had bilobar disease.A right-sided first resection was planned in 39%of *** percent of patients underwent portal vein embolization prior to first resection.A second operation was performed at an average of 2.8 months from the first ***,50%(n=14)of patients eventually achieved a complete(R0)staged *** complications after the first resection were seen in 32%patients(n=9).Twenty- three patients underwent a second liver ***-five complications after the second resection were present in 57% (n=13). CONCLUSIONS:Two-stage liver resections are beneficial if both stages are completed and an R0 resection is achieved. While there is increased morbidity and mortality,we believe that staged liver resection for colorectal metastases is a valuable strategy in selected cases.

关键词： liver resection colorectal cancer liver metastases

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Is there a difference in adenoma detection rates between gastroenterologists and surgeons?

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World Journal of Gastrointestinal Endoscopy 2018年第6期10卷 109-116页

作者： Adele Hwee Hong Lee Nuttaradee Lojanapiwat Vikram Balakrishnan raaj chandra Eastern Health Clinical School Monash University Clayton CampusMelbourne 3128Australia Department of Colorectal Surgery Box Hill HospitalMelbourne 3128Australia Royal Melbourne Hospital Melbourne 3050Australia

AIM To compare the adenoma detection rate(ADR) between gastroenterologists and colorectal surgeons at Box Hill Hospital, Melbourne, *** A total of 300 colonoscopies performed by gastroenterologists and colorectal surgeons at Box Hill Hospital were retrospectively reviewed from May 2016 to June 2017. Exclusion criteria were: Patients ≤ 50 years old, colonoscopies with failure of caecal intubation, patients who previously had colon cancer and/or a colonic resection, history of polyposis syndromes or inflammatory bowel disease, or a colonoscopy within the last 10 years. Patient demographics, indications, symptoms and procedural-related outcomes were *** The ADR was not significantly different between gastroenterologists and colorectal surgeons(34% vs 34.67%; P = 0.90). The adjusted odds ratio correcting for gender, age, 1^(st) degree relative with colorectal cancer, previous colonoscopy, trainee involvement and caecal or terminal ileum intubation rate was 1.19(0.69-2.05).CONCLUSION Both specialties at our institution exceed benchmark standards suggested by published Australian and American guidelines. An association between endoscopist specialty and ADR was not observed.

关键词： Colorectal surgery Gastroenterologists Surgeons Adenoma Colonoscopy General surgery

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Triradiate caecal fold:Is it a useful landmark for caecal intubation in colonoscopy?

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World Journal of Gastrointestinal Endoscopy 2015年第13期7卷 1103-1106页

作者： Andrew Finlayson raaj chandra Ian A Hastie Ian T Jones Susan Shedda Michael K-Y Hong Aileen Yen Ian P Hayes Colorectal Surgery Unit Department of General Surgical SpecialtiesRoyal Melbourne Hospital Department of Surgery University of Melbourne

AIM: To determine the frequency of identification of the triradiate fold during colonoscopy and evaluate its reliability as a marker of caecal intubation. METHODS: One hundred consecutive patients undergoing colonoscopy in a tertiary hospital colorectal unit from May to September 2013 were studied. Video documentation of the caecum was recorded and shown to consultant colorectal surgeons on the unit. Each reviewer was asked through a series of questions to independently identify the triradiate fold. The main outcome was the frequency of visualisation of the triradiate fold in the ***: The triradiate fold was seen on average in 18% of cases, but inter-observer agreement was poor. There were only four patients(4%) in which all reviewers agreed on the presence of a triradiate fold. In patients who had undergone previous appendicectomy, the appendiceal orifice was less frequently seen compared with patients who had not undergone ***: The triradiate fold is infrequently seen during colonoscopy and is therefore an unreliable landmark of caecal intubation.

关键词： Colonoscopy Triradiate fold Appendiceal orifice Ca

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Modeling ice thickness distribution and storage volume of glaciers in chandra Basin,western Himalayas

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Journal of Mountain Science 2020年第8期17卷 2011-2022页

作者： Ankur PANDIT raaj RAMSANKARAN Inter Disciplinary Program(IDP)in Climate Studies Indian Institute of Technology BombayMumbai 400076India TCS Research and Innovation Thane400601 India Department of Civil Engineering Indian Institute of Technology BombayMumbai 400076India

This article reports modeled ice thickness distribution and total ice volume of the 65 selected glaciers(>0.5 km^2)of chandra basin,located in the Western *** is a first-of-its-kind study that gives detailed insights about the current ice thickness distribution at an individual glacier level in the Western *** estimates are obtained using an optimally parameterized Glab Top2_IITB[Glacier Bed Topography Indian Institute of Technology Bombay(IITB)version]model with highresolution Digital Elevation Model(DEM)as an *** total estimated volume of all the 65 selected glaciers is about 55.32 km^3 covering a total area of about 591.03 km^*** hypsometric analysis,it is found that the maximum amount of ice volume,i.e.,about 12.79 km^3,is currently residing at the elevation range of 5200–5400 m *** thickness estimates obtained in the current study are compared with the ensemble estimates obtained in the Global Glacier Thickness Initiative(G2TI)project for three large glaciers,namely,Bada Shigri,Samudra Tapu,and Gepang Gath *** obtained results indicate that the difference between both the studies is marginal in terms of mean ice thickness and maximum ice thickness estimates except Samudra Tapu ***,the uncertainty of the estimated glacier ice volume from this study is about±15%whereas,from the G2TI project,it is about 25%.The main reasons for the difference could be the quality of the inputs used,model structure,model parameterization as well as the time stamp of the input *** obtained results from this study indicate that the use of appropriate shape factor and better DEM would result in more reliable glacier ice thickness estimates even by using a simple slopedependent model like Glab Top2_IITB.

关键词： Glacier ice thickness Glacier volume Glab Top2_IITB TanDEM-X DEM

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