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Optimization of Groundwater Level Monitoring Network Using GIS-based Geostatistical Method and Multi-parameter Analysis:A Case Study in Wainganga Sub-basin,India

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Chinese Geographical Science 2017年第2期27卷 201-215页

作者： kumar Singh CHANDAN Bhaskar Katpatal yashwant Department of Civil Engineering Department of Civil Engineering Visvesvaraya National Institute of TechnologyNagpur 440010India

Groundwater is one of the most important resources, its monitoring and optimized management has now become the priority to satisfy the demand of rapidly increasing population. In many developing countries, optimized groundwater level monitoring networks are rarely designed to build up a strong groundwater level data base, and to reduce operation time and cost. The paper presents application of geostatistical method to optimize existing network of observation wells for 18 sub-watersheds within the Wainganga Sub-basin located in the central part of India. The average groundwater level fluctuation(GWLF) from 37 observation wells is compared with parameters like lineament density, recharge, density of irrigation wells, land use and hydrogeology(LiRDLH) of Wainganga Sub-basin and analyzed stochastically in Geographic Information System(GIS) environment using simple, ordinary, disjunctive and universal kriging methods. Semivariogram analyses have been performed separately for all kriging methods to fit the best theoretical model with experimental model. Results from gaussian, spherical, exponential and circular theoretical models were compared with those of experimental models obtained from the groundwater level data. Spatial analyses conclude that the exponential semivariogram model obtained from ordinary kriging gives the best fit model. Study demonstrates that ordinary kriging gives the optimal solution and additional number of observation wells can be added utilizing the error variance for optimal design of groundwater level monitoring networks. This study describes the use of Geostatistics methods in GIS to predict the groundwater level and upgrade groundwater level monitoring networks from the randomly distributed observation wells considering multiple parameters such as GWLF and LiRDLH. The method proposed in the present study is observed to be an efficient method for selecting observation well locations in a complex geological set up. The study concludes that mini

关键词： observation wells groundwater kriging semivariogram Geographic Information System (GIS)

Thoracic perspective revisited in chronic liver disease

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Gastroenterology Report 2015年第3期3卷 194-200页

作者： Binit Sureka Kalpana Bansal yashwant Patidar Sachin kumar Ankur Arora Department of Radiology/Interventional Radiology Department of Pulmonary Medicine Institute of Liver and Biliary SciencesNew DelhiIndia

A variety of chest manifestations are seen in patients with chronic liver diseases,namely hepatopulmonary syndrome,portopulmonary hypertension,intrathoracic portosystemic collaterals,hepatic hydrothorax,infections,drug-induced changes,manifestations of hepatocellular carcinoma,gynecomastia,acute respiratory distress syndrome,autoimmune changes,aspiration pneumonitis and changes due to a1-antitrypsin *** and radiologists should be aware of these entities;knowledge of the imaging findings specific to each condition is of prime importance for managing such patients.

关键词： cirrhosis infection portosystemic portopulmonary computed tomography

Rupture of the triceps tendon - A case series

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Chinese Journal of Traumatology 2016年第4期19卷 235-238页

作者： Atin Jaiswal Naiman Deep Kacchap yashwant Singh Tanwar Devendra kumar Birendra kumar Department of Orthopaedics Maya Hospital India Department of Orthopaedics Bokaro General Hospital Bokaro India Department of Orthopaedics PGIMER & Dr R.M.L Hospital New Delhi India

Triceps rupture is the least common among all tendon injuries. The usual mechanism of injury is a fall on an outstretched hand, although direct contact injuries have also been reported to cause this injury. The diagnosis of acute triceps tendon rupture may be missed, which can result in prolonged disability and delayed operative management. We presented three cases of acute triceps tendon rupture each at different site showing the spectrum of injury to the muscle and mechanism of injury and management were also discussed.

关键词： Triceps Tendon Rupture

Tubercular arthritis of the elbow joint following olecranon fracture fixation and the role of TGF-beta in its pathogenesis

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Chinese Journal of Traumatology 2013年第5期16卷 288-291页

作者： Masood Habib yashwant Singh Tanwar Atin Jaiswal Rajender kumar Arya Department of Orthopedic Surgery PGIMER & Dr R.M.L Hospital New Delhi India 11001

Tuberculosis （TB） occurring after a closed bone fracture in the patient with no history of TB and no evidence of TB infection at the time of initial fracture is a rare entity. We report one such case of a 48-year-old female, who presented in the emergency department with an olecranon fracture which was open reduced and inter- nally fixed with tension band wiring. Patient presented in the outpatient department with serosanguineous discharge at 3 weeks after surgery. The discharge was sent for culture and sensitivity tests, and the patient was managed by anti- biotics and daily dressings. There was wound dehiscence and the underlying implant was exposed, which was removed at 12 weeks after surgery. Repeat debridements and dressings continued for 6 months, but the discharge from the wound site continued. X-rays of the elbow performed at 6 months raised the suspicion of TB, which was confirmed by Ziel-Neelsen staining and histopathological examination of the debrided tissue. Following the confirmation, patient was put on antitubercular drugs. The patient responded to anti- tubercular drug therapy （ATT）, the purulent discharge from the wound ceased, and eventually the wound healed after 2 months of starting ATT.

关键词： Olecranon process Fracture fixation Tuberculosis, osteoarticular Transforming growth factor beta

Complete palmer lunate enucleation -- is proximal row carpectomy or wrist arthrodesis the only choice？

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Chinese Journal of Traumatology 2013年第5期16卷 298-300页

作者： Atin Jaiswal Naiman Deepak Kachchhap yashwant S Tanwar Masood Habib Birendra kumar Department of Orthopaedics Bokaro General HospitalBokaro 827004 India PGIMER & Dr RML Hospital New Delhi India

Perilunate dislocations are rare injuries of the wrist and complete dislocation of the lunate is also rare. There is controversy in literature regarding the optimal management of such injuries. Complete lunate enucleation is associated with high rate of osteonecrosis of lunate thus wrist arthrodesis or proximal row carpectomy has been ad- vocated as primary treatment for such injuries. We report a case of transradial styloid complete palmar lunate enucle- ation in a 25-year-old male patient who sustained injury to the left wrist due to fall on outstretched hand. Carpal row salvage surgery initially by closed reduction and wrist distractor application followed by open reduction and in- ternal fixation with K-wires along with ligamentous repair resulted in restoration of normal wrist anatomy and good functional outcome. As many of these injuries are missed on initial presentation and outcome is poor for missed injuries, prompt diagnosis and early surgical management to restore vascularity of lunate is recommended.

关键词： Wrist Lunate bone Dislocations

Transcatheter interventions for severe tricuspid regurgitation:a literature review

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Journal of Geriatric Cardiology 2022年第7期19卷 539-550页

作者： Pramod kumar Ponna Stephen Patin Naga Sai Shravan Turaga Dominika M Zoltowska Vishal Devarkonda Ramya Krishna Botta yashwant Agrawal Gaurav Dhar Internal Medicine Louisiana State University Health Sciences CenterShreveportLAUSA Division of Cardiology University of Arkansas for Medical SciencesLittle RockARUSA Division of Cardiology University of FloridaJacksonvilleFLUSA Division of Infectious Diseases Vanderbilt University Medical CenterNashvilleTNUSA Division of Cardiology Chandler Region Medical CenterChandlerArizonaUSA

The prevalence of tricuspid regurgitation(TR)increases with age,affecting 65%-85%of *** TR is caused by a congenital or acquired abnormality of the tricuspid valve apparatus(leaflets,chordae,papillary muscles,or annulus).Secondary TR is due to insufficient coaptation from dilation of tricuspid valve annulus due to the right ventricle(RV)or right at-rium(RA)remodeling and increased RV *** TR is without increased RV pressures and is associated with atrial *** TR is a benign *** to severe tricuspid regurgitation has independently been associated with in-creased *** of these patients are treated medically due to poor outcomes with surgical repair of isolated *** in-hospital mortality rate is 8.8%,and the median length of stay in hospital is 11 days resulting in higher healthcare *** if the patients undergo surgical repair or replacement,available data do not show improvement in *** a more detailed un-derstanding of the complex anatomy and physiology of the tricuspid valve and significant complications from untreated tricusp-id valve disease,the approach to the management of TR has shifted from a conservative approach to a process of prevention and *** the past decade,transcatheter tricuspid valve interventions and tricuspid annuloplasty rings have been de-veloped,contributing to decreased mortality from surgical *** tricuspid valve intervention techniques have im-proved survival,quality of life,and reduced heart failure *** review summarizes normal anatomy,types of TR,etiology and different mechanisms of TR,echocardiographic assessment of the severe TR,and highlights various percu-taneous transcatheter techniques for tricuspid valve repair.

关键词： anatomy tricuspid regurgitation

Triple plating of tibia in a complex bicondylar tibial plateau fracture

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Chinese Journal of Traumatology 2014年第3期17卷 183-186页

作者： Atin Jaiswal Naiman Deepak Kachchhap yashwant S Tanwar Birendra kumar Sachin K Yadav Department of Orthopaedics Bokaro GeneralHospital Bokaro India Department of Orthopaedics Postgraduate Instituteof Medical Education & Research and Dr. Ram ManoharLohia Hospital New Delhi India

High-energy tibial plateau fracture poses a significant challenge and difficulty for orthopaedic surgeons. Fracture of tibial plateau involves major weight bearing joint and may alter knee kinematics. Anatomic reconstruction of the proximal tibial articular surfaces, restoration of the limb axis （limb alignment） and stable fixation permitting early joint motion are the goals of the treatment. In cases of complex bicondylar tibial plateau fractures, isolated lateral plating is frequently associated with varus malalignment and better results have been obtained with bilateral plating through dual incisions. However sometimes a complex type of bicondylar tibialplateau fractures is encountered in which medial plateau has a biplaner fracture in posterior coronal plane as well as sagittal plane. In such fractures it is imperative to fix the medial plateau with buttressing in both planes. One such fracture pattern of the proximal tibia managed by triple plating through dual posteromedial and anterolateral incisions is discussed in this case report with emphasis on mechanisms of this type of injury, surgical approach and management.

关键词： Tibial fractures Bone plates Knee

Prevalence of hypertension in India:A meta-analysis

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World Journal of Meta-Analysis 2013年第2期1卷 83-89页

作者： Tanu Midha Bhola Nath Ranjeeta kumari yashwant kumar Rao Umeshwar Pandey Department of Community Medicine GSVM Medical College Department of Community Medicine VCSG Government Medical College Department of Community Medicine AIIMS Department of Pediatrics GSVM Medical College Department of Cardiology LPS Institute of Cardiology and Cardiac Surgery

AIM: To determine the prevalence of hypertension in the urban and rural population of ***: Relevant studies were identified through computer based and manual searches using MEDLINE/ Pub Med, Google scholar, EMBASE, Cochrane Library and reference lists of prevalence studies from January 2000 to June 2012. A total of 12 studies were included in the meta-analysis of hypertension in urban India and 10 studies in the analysis of hypertension in rural India after applying the inclusion and exclusion criteria. Estimates of prevalence were calculated using the random effect model for ***: The electronic search using appropriate keywords identified 177 titles for prevalence of hypertension in urban India, of which 165 were excluded, and 133 titles for prevalence in rural India, of which123 were excluded after applying the inclusion criteria. Twelve studies including 125333 subjects were analyzed to assess the prevalence of hypertension in the urban Indian population, whereas ten studies including 24800 subjects were analyzed to determine the prevalence of hypertension in the rural Indian population. The prevalence of hypertension in the urban population was estimated to be 40.8%(95%CI: 40.5%-41.0%) and that of hypertension in the rural population was 17.9%(95%CI: 17.5%-18.3%). It is evident that the prevalence of hypertension is significantly higher in the urban population of India compared to the rural. CONCLUSION: Current evidence suggests that policies and interventions should be prioritized for reduction of hypertension in the adult Indian population, especially the urban population.

关键词： Prevalence Hypertension Meta-analysis India Urban Rural

Cut-off of body mass index and waist circumference to predict hypertension in Indian adults

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World Journal of Clinical Cases 2014年第7期2卷 272-278页

作者： Tanu Midha Vinay Krishna Bhola Nath Ranjeeta kumari yashwant kumar Rao Umeshwar Pandey Samarjeet Kaur Department of Community Medicine Government Medical CollegeKannaujUttar Pradesh 209732India Department of Cardiovascular and Thoracic Surgery LPS Institute of CardiologyKanpurUttar Pradesh 208002India Department of Community Medicine VCSGGMS and RISrinagarGarhwalUttarakhand 246174India Department of Community and Family Medicine AIIMSRishikesh 249201India Department of Pediatrics GSVM Medical CollegeKanpurUttar Pradesh 208002India Department of Cardiology LPS Institute of CardiologyKanpurUttar Pradesh 208002India Department of Community Medicine GSVM Medical CollegeKanpurUttar Pradesh 208002India

AIM: To determine the cut-off values of body mass index(BMI) and waist circumference to predict hypertension in adults in north ***: A community based cross-sectional study was conducted in 801 subjects in Kanpur, aged 20 years and above, using multistage stratified random sampling technique. A pre-tested structured question-naire was used to elicit the required information from the study participants and the diagnostic criteria for hypertension were taken according to the Seventh Joint National Committee Report on Hypertension(JNC-7). Receiver operating characteristic(ROC) analysis was used to estimate the cut-off values of BMI and waist circumference to predict ***: The ROC analysis revealed that BMI is a good predictor of hypertension for both men(area under the ROC curve 0.714) and women(area under the ROC curve 0.821). The cut-off values of BMI for predicting hypertension were identified as ≥ 24.5 kg/m2 in men and ≥ 24.9 kg/m2 in women. Similarly, the ROC analysis for waist circumference showed that it is a good predictor of hypertension both for men(area under the ROC curve 0.784) and women(area under the ROC curve 0.815). The cut-offs for waist circumference for predicting hypertension were estimated as ≥ 83 cm for men and ≥ 78 cm for women. Adults with high BMI or high waist circumference had a higher prevalence of hypertension, ***: Simple anthropometric measurements such as BMI and waist circumference can be used for screening people at increased risk of hypertension in order to refer them for more careful and early diagnostic evaluation. Policies and programs are required for primary and secondary prevention of hypertension.

关键词： Anthropometric indices Body mass index Waist circumference Obesity,Hypertension Adults