45 results on '"Ramprakash S"'
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2. HEART ATTACK PREDICTION USING MACHINE LEARNING
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Prabu, Dr.M. Manoj, primary, Ramprakash, S, additional, Ajith, G, additional, and Sethuragavan, S, additional
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- 2023
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3. Experimental Investigation on Improvement of Machinability of SS 304 Through Multipass Cutting in WEDM
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Suresh, T., primary, Jayakumar, K., additional, Selvakumar, G., additional, and Ramprakash, S., additional
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- 2022
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4. Performance Comparison of FCN, LSTM and GRU for State of Charge Estimation
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RamPrakash, S, primary and Sivraj, P, additional
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- 2022
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5. To compare horizontal strabismus deviation as assessed from photographs with that in the strabismus clinic using the prism bar
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Aparna Bose, Abadan Khan Amitava, Yogesh Gupta, Nikita Sharma, Syed Aisha Raza, Anam Masood, Ramprakash Singh, and Gangasagar Meena
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corneal light reflex ,flash photograph ,smartphone camera ,strabismus ,Ophthalmology ,RE1-994 - Abstract
Purpose: To compare the deviation in cases of horizontal strabismus as assessed from photographs with the measurements as obtained in the strabismus clinic. Methods: After obtaining informed consent, we recruited subjects with manifest horizontal strabismus. We took a frontal flash photograph from a distance of 50 cm using smart-phone-based cameras with the flash light vertically aligned with the lens. After projecting the photograph on a laptop and using a vernier caliper, we measured the horizontal corneal diameter of the non-strabismic eye and the decentration of reflex in the strabismic eye taking limbus as the reference point. We converted these values to degrees by using a conversion factor of 7.5°/mm and further to prism diopters (PD) by the standard mathematical formula 100*tanθ. Results: We included 74 subjects aged between 5 and 40 years with manifest horizontal deviation from 20 to 85 PD. We found a statistically significant correlation of 82.6% (P value < 0.001) between the clinic and photographic measurements. Agreement analysis suggested that the photographic measurements measured on average 7 PD less (95% confidence interval: 4.6 to 9.2) than clinical measurements along all values of misalignment, although the difference between the two methods decreased as the quantum of deviation increased. Linear regression revealed an r2 of 68% and provided a predictive equation to derive clinic equivalent measurements from photographic estimates. Conclusion: We believe our simple method provides robust evidence that a photographic estimation can provide the basic information of the size of the deviation to plan possible surgeries, especially in situations of a tele-consultation. This is an easy approach to both understand and master and should form the armamentarium of most orthopticians and strabismologists.
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- 2024
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6. Rejection of paternal vs maternal fully matched bone marrow grafts in children with thalassemia
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Ramprakash, S, Agarwal, R K, Dhanya, R, Sedai, A, Kumari, A, Parmar, L, Srinivas, R, Kakulamari, V R, Marwah, P, Soni, R, Williams, S, Rathnayake, W, Sen, S, Tulpule, S, and Faulkner, L
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- 2017
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7. Securing Heterogeneous Privacy Protection in Social Network Records based Encryption Scheme
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Dhivakar. M, Ramprakash. S, Muruganantham. G, and Balamurugan. R
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Information sensitivity ,Social network ,Cover (telecommunications) ,Computer science ,business.industry ,Privacy policy ,Information sharing ,Internet privacy ,Mainstream ,Identity (social science) ,Encryption ,business - Abstract
This survey places of interest the major issues concerning privacy and security in online social networks. Firstly, we discuss investigate that aims to protect user data from the an assortment of attack vantage points together with other users, advertisers, third party request developers, and the online social arrangement provider itself. Next we cover social network supposition of user attributes, locate hubs, and link prediction. Because online social networks are so saturated with sensitive information, network inference plays a major privacy role. Social Networking sites go upwards since of all these reasons. In recent years indicates that for many people they are now the mainstream communication knowledge. Social networking sites come under few of the most frequently browsed categories websites in the world. Nevertheless Social Networking sites are also vulnerable to various problems threats and attacks such as revelation of information, identity thefts etc. Privacy practice in social networking sites often appear convoluted as in sequence sharing stands in discord with the need to reduce disclosure-related abuses. Facebook is one such most popular and widely used Social Networking sites which have its own healthy set of Privacy policy.
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- 2019
8. System modeling of micro‐grid with hybrid energy sources for optimal energy management—A hybrid elephant herding optimization algorithm‐adaptive neuro fuzzy inference system approach
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Durairasan, M., primary, Ramprakash, S., additional, and Balasubramanian, Divya, additional
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- 2021
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9. The effect of fish and ω-3 LCPUFA intake on low birth weight in Indian pregnant women
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Muthayya, S, Dwarkanath, P, Thomas, T, Ramprakash, S, Mehra, R, Mhaskar, A, Mhaskar, R, Thomas, A, Bhat, S, Vaz, M, and Kurpad, A V
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- 2009
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10. Kidney shape statistical analysis: associations with disease and anthropometric factors
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Marjola Thanaj, Nicolas Basty, Madeleine Cule, Elena P. Sorokin, Brandon Whitcher, Ramprakash Srinivasan, Rachel Lennon, Jimmy D. Bell, and E. Louise Thomas
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Magnetic resonance imaging ,Kidney volume ,3D mesh-derived phenotype ,Statistical parametric maps ,Statistical shape analysis ,Chronic kidney disease ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background Organ measurements derived from magnetic resonance imaging (MRI) have the potential to enhance our understanding of the precise phenotypic variations underlying many clinical conditions. Methods We applied morphometric methods to study the kidneys by constructing surface meshes from kidney segmentations from abdominal MRI data in 38,868 participants in the UK Biobank. Using mesh-based analysis techniques based on statistical parametric maps (SPMs), we were able to detect variations in specific regions of the kidney and associate those with anthropometric traits as well as disease states including chronic kidney disease (CKD), type-2 diabetes (T2D), and hypertension. Statistical shape analysis (SSA) based on principal component analysis was also used within the disease population and the principal component scores were used to assess the risk of disease events. Results We show that CKD, T2D and hypertension were associated with kidney shape. Age was associated with kidney shape consistently across disease groups. Body mass index (BMI) and waist-to-hip ratio (WHR) were also associated with kidney shape for the participants with T2D. Using SSA, we were able to capture kidney shape variations, relative to size, angle, straightness, width, length, and thickness of the kidneys, within disease populations. We identified significant associations between both left and right kidney length and width and incidence of CKD (hazard ratio (HR): 0.74, 95% CI: 0.61–0.90, p
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- 2023
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11. The effect of fish and [omega]-3 LCPUFA intake on low birth weight in Indian pregnant women
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Muthayya, S., Dwarkanath, P., Thomas, T., Ramprakash, S., Mehra, R., Mhaskar, A., Mhaskar, R., Thomas, A, Bhat, S., Vaz, M., and Kurpad, A.V.
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Pregnant women -- Food and nutrition ,Fish as food -- Nutritional aspects ,Omega-3 fatty acids -- Health aspects - Abstract
Background: Inadequate consumption of fish could be a risk factor for low birth weight (LBW). This study assessed fish intake and [omega]-3 LCPUFA intake and status for their association with LBW in a cohort of urban, south Indian pregnant women. Subjects/methods: In a prospective cohort study, data on maternal fish intake and [omega]-3 LCPUFA intake and status of 676 women were obtained at baseline (first trimester), the second and third trimesters of pregnancy. Infant birth weight was measured immediately following hospital delivery. The dropout rate was 7.6%. Results: Fifty-six percent of the study women consumed fish with low daily median intakes (3.4, 4.1 and 3.8 g [day.sup.-1] at the three trimesters, respectively). Consequently, the median intakes of EPA and DHA during pregnancy were also low at 2.1 and 10.1 mg [day.sup.-1], respectively. EPA and DHA intakes were associated with their status in erythrocyte membrane phospholipids during pregnancy (r=0.40 and 0.36, r=0.34 and 0.32 and r=0.37 and 0.41, at the three trimesters, respectively, all P Conclusions: Among low fish-eating pregnant women, fish intake in the third trimester was closely associated with birth weight. Supplementation with [omega]-3 LCPUFA during pregnancy may have important implications for fetal development in India. doi:10.1038/sj.ejcn.1602933; published online 24 October 2007 Keywords: low birth weight; pregnancy; fish; [omega]-3 fatty acids; DHA; India, Introduction Long-chain [omega]-3 polyunsaturated fatty acids ([omega]-3 LCPUFAs), such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), play an important role during pregnancy as they are important structural constituents of [...]
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- 2009
12. P0128 / #955: PICU OUTCOMES OF POST HSCT CHILDREN IN A TERTIARY CARE CENTRE IN INDIA
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Thomas, A., primary, Chandrasekar, S., additional, Venkatesha, G., additional, Ramprakash, S., additional, Faulkner, L., additional, Ratnam, N., additional, Singh, R., additional, Malvel, S., additional, Reddy, A., additional, and Quazi, S., additional
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- 2021
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13. Minimizing Delay and Maximizing Network Lifetime by Power-Aware Energy Efficient Routing [PAEER] Mechanism in Wireless Sensor Networks
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Ramprakash S, Subathra P, and Vijayakumari B
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business.industry ,Computer science ,Energy efficient routing ,business ,Wireless sensor network ,Mechanism (sociology) ,Computer network ,Power (physics) - Abstract
We propose an efficient routing mechanism called PAEER (Power-Aware Energy Efficient Routing) for meeting Network Lifetime Maximization and energy efficiency in the Wireless Sensor Networks(WSN). The different contributions of the PAEER approach are following (a) Multisink node approach which can lead to increase the nodes network lifetime and event detection mechanism that meets reliability requirement of the WSN (b) Using PAEER mechanism sends the data to sink node by covering multi-path routes to aggregate the nodes data. Thus energy consumption of the WSN can be reduced maximum level therefore network lifetime increased. This can be proved both theoretical and experiment solutions can be better when compared to other solutions. By using Network Simulator-3 (NS-3) testbed the results show the better results for the all Quality of Service parameters (QoS) like Throughput, Network Lifetime, Power Consumption, etc.
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- 2020
14. Handbook of Python : Easy to Carry Python Basics
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Ramprakash S. and Ramprakash S.
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This book depicts the basics of python which is very useful for beginners and those who are all willing to learn and coding in python. Nowadays python plays a major role in the industrial and programming environment, and most industries need python programmers to develop many applications like web development, mobile app development, etc., This book definitely helps for the age group of 10 to anyone., Easy examples are given in each and every chapter that is very easy to understand for user needs.
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- 2021
15. Impact of gst in india
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Ramprakash S, Sri Padma Abirami P, and Namasivayam
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Goods and Service Tax or GST as it is known is all set to be a game changerfor the Indian economy. The Finance Minister in his budget speech of Budget 2015 hasannounced time and again that the tax will be introduced on 1 April, 2016. In India, there aredifferent indirect taxes applied on goods and services by central and state government. GSTis intended to include all these taxes into one tax with seamless ITC and charged on bothgoods and services. Thus excise duty, special additional duty, service tax, VAT to name afew will get repealed and will be added into GST. For this, GST will have 3 parts – CGST,SGST and IGST. The central taxes like excise duty will be subsumed into CGST and statetaxes like VAT into SGST .This paper deals with the impact of GST in India
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- 2017
16. Precision MRI phenotyping of muscle volume and quality at a population scale
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Marjola Thanaj, Nicolas Basty, Brandon Whitcher, Elena P. Sorokin, Yi Liu, Ramprakash Srinivasan, Madeleine Cule, E. Louise Thomas, and Jimmy D. Bell
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muscle volume ,muscle quality ,intermuscular adipose tissue ,magnetic resonance imaging ,dynapenia ,frailty ,Physiology ,QP1-981 - Abstract
Introduction: Magnetic resonance imaging (MRI) enables direct measurements of muscle volume and quality, allowing for an in-depth understanding of their associations with anthropometric traits, and health conditions. However, it is unclear which muscle volume measurements: total muscle volume, regional measurements, measurements of muscle quality: intermuscular adipose tissue (IMAT) or proton density fat fraction (PDFF), are most informative and associate with relevant health conditions such as dynapenia and frailty.Methods: We have measured image-derived phenotypes (IDPs) including total and regional muscle volumes and measures of muscle quality, derived from the neck-to-knee Dixon images in 44,520 UK Biobank participants. We further segmented paraspinal muscle from 2D quantitative MRI to quantify muscle PDFF and iron concentration. We defined dynapenia based on grip strength below sex-specific cut-off points and frailty based on five criteria (weight loss, exhaustion, grip strength, low physical activity and slow walking pace). We used logistic regression to investigate the association between muscle volume and quality measurements and dynapenia and frailty.Results: Muscle volumes were significantly higher in male compared with female participants, even after correcting for height while, IMAT (corrected for muscle volume) and paraspinal muscle PDFF were significantly higher in female compared with male participants. From the overall cohort, 7.6% (N = 3,261) were identified with dynapenia, and 1.1% (N = 455) with frailty. Dynapenia and frailty were positively associated with age and negatively associated with physical activity levels. Additionally, reduced muscle volume and quality measurements were associated with both dynapenia and frailty. In dynapenia, muscle volume IDPs were most informative, particularly total muscle exhibiting odds ratios (OR) of 0.392, while for frailty, muscle quality was found to be most informative, in particular thigh IMAT volume indexed to height squared (OR = 1.396), both with p-values below the Bonferroni-corrected threshold (p
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- 2024
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17. Abdominal imaging associates body composition with COVID-19 severity.
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Nicolas Basty, Elena P Sorokin, Marjola Thanaj, Ramprakash Srinivasan, Brandon Whitcher, Jimmy D Bell, Madeleine Cule, and E Louise Thomas
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Medicine ,Science - Abstract
The main drivers of COVID-19 disease severity and the impact of COVID-19 on long-term health after recovery are yet to be fully understood. Medical imaging studies investigating COVID-19 to date have mostly been limited to small datasets and post-hoc analyses of severe cases. The UK Biobank recruited recovered SARS-CoV-2 positive individuals (n = 967) and matched controls (n = 913) who were extensively imaged prior to the pandemic and underwent follow-up scanning. In this study, we investigated longitudinal changes in body composition, as well as the associations of pre-pandemic image-derived phenotypes with COVID-19 severity. Our longitudinal analysis, in a population of mostly mild cases, associated a decrease in lung volume with SARS-CoV-2 positivity. We also observed that increased visceral adipose tissue and liver fat, and reduced muscle volume, prior to COVID-19, were associated with COVID-19 disease severity. Finally, we trained a machine classifier with demographic, anthropometric and imaging traits, and showed that visceral fat, liver fat and muscle volume have prognostic value for COVID-19 disease severity beyond the standard demographic and anthropometric measurements. This combination of image-derived phenotypes from abdominal MRI scans and ensemble learning to predict risk may have future clinical utility in identifying populations at-risk for a severe COVID-19 outcome.
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- 2023
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18. G16(P) Variation in transfusion requirements among children with thalassaemia on regular transfusion programmes
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Cornell, N, primary, Eisenhut, M, additional, and Ramprakash, S, additional
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- 2016
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19. Human-interpretable image features derived from densely mapped cancer pathology slides predict diverse molecular phenotypes
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James A. Diao, Jason K. Wang, Wan Fung Chui, Victoria Mountain, Sai Chowdary Gullapally, Ramprakash Srinivasan, Richard N. Mitchell, Benjamin Glass, Sara Hoffman, Sudha K. Rao, Chirag Maheshwari, Abhik Lahiri, Aaditya Prakash, Ryan McLoughlin, Jennifer K. Kerner, Murray B. Resnick, Michael C. Montalto, Aditya Khosla, Ilan N. Wapinski, Andrew H. Beck, Hunter L. Elliott, and Amaro Taylor-Weiner
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Science - Abstract
Computational methods have made progress in improving classification accuracy and throughput of pathology workflows, but lack of interpretability remains a barrier to clinical integration. Here, the authors present an approach for predicting clinically-relevant molecular phenotypes from whole-slide histopathology images using human-interpretable image features.
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- 2021
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20. Monitoring And Analyzing Distributed Cluster Performance And Statistics Of Atlas Job Flow
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Ramprakash, S
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Detectors and Experimental Techniques - Abstract
The ATLAS experiment is a High Energy Physics experiment that utilizes the services of Grid3 now migrating to the Open Science Grid (OSG). This thesis provides monitoring and analysis of performance and statistical data from individual distributed clusters that combine to form the ATLAS Grid and will ultimately be used to make scheduling decisions on this Grid. The system developed in this thesis uses a layered architecture such that predicted future developments or changes brought to the existing Grid infrastructure can easily utilize this work with minimum or no changes. The starting point of the system is based on the existing scheduling that is being done manually for ATLAS job flow. We have provided additional functionality based on the requirements of the High Energy Physics ATLAS team of physicists at UTA. The system developed in this thesis has successfully monitored and analyzed distributed cluster performance at three sites and is waiting for access to monitor data from three more sites. (Abstract shortened by UMI.)
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- 2005
21. G201(P) Survey of Management of Iron Deficiency Anaemia in Children with Inflammatory Bowel Disease in the UK
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Ramprakash, S., primary and Modi, A., additional
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- 2013
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22. G183(P) Cost Effectiveness of Hydroxyurea Therapy in Preventing Inpatient Admissions Due to Vaso-Occlusive Crisis in Sickle Cell Children - a District General Hospital Experience
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Ramprakash, S., primary, Roantree, E., additional, and Willis, K., additional
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- 2013
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23. The effect of fish and ω-3 LCPUFA intake on low birth weight in Indian pregnant women
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Muthayya, S, primary, Dwarkanath, P, additional, Thomas, T, additional, Ramprakash, S, additional, Mehra, R, additional, Mhaskar, A, additional, Mhaskar, R, additional, Thomas, A, additional, Bhat, S, additional, Vaz, M, additional, and Kurpad, A V, additional
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- 2007
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24. A Case Study on Insulating Main Steam Line (MSL) with Silica Aerogel
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Manohar, J., Ramprakash, S., Selvakumar, G., and Dhiliban
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In this paper, a case study on replacing the existing insulating material (Mineral wool) by the Silica Aerogel in the main steam line (MSL) of the thermal power plant is presented.A sample length of 3 m in MSL was insulated with various thicknesses of silica aerogel, mineral wool and the combinations of mineral wool and silica aerogel. The heat loss in the sample length with different insulating material was calculated by carrying out field experiments. The results show that the silica aerogel is providing better insulation than the mineral wool. Nonetheless, the use of silica aerogel is expensive. To bring down the cost, hybrid insulation with the optimal thickness of silica aerogel + mineral wool + silica aerogel was suggested. This hybrid combination considerably reduced the heat loss and improved the thermal efficiency. The payback period for this implementation was reported.
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- 2016
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25. Population monitoring and annual population fluctuation of migratory and resident species of vultures in and around Jodhpur, Rajasthan
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Ramprakash Saran
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Jodhpur ,migratory species ,resident species ,Thar Desert ,vulture population ,Ecology ,QH540-549.5 - Abstract
Vultures are important scavengers that play a vital role in clearing animal carcasses and municipal dumps. In the past decade, a sharp decline has been observed in vulture population. For the present work, Jodhpur district of Thar Desert, India, the natural habitat of resident and migratory species of vultures, was investigated. Intensive surveys of the study area were undertaken from 2007 to 2015 to determine the annual population fluctuations in various vulture species in and around Jodhpur (26°19′N and 73°08′E). The data obtained regarding the population fluctuation of different vultures species in the study area are of great significance. Comparative analysis of data obtained with regard to the population dynamics of the various species of vultures in this region has suggested that there has been a drastic decline in the population of migratory as well as resident vulture species in this region. A comparative study suggests that the population of migratory species has reached very low relative abundance in 2015 as compared to 2007. Neophron percnopterus has the highest and Gyps bengalensis has the lowest population during the entire 9-year study. The finding suggests that the reason for this population fluctuation is climate change as well as change in temperature fluctuation over a period of time, particularly during the breeding season.
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- 2017
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26. Hematopoietic Stem Cell Transplantation for C1q Deficiency: A Study on Behalf of the EBMT Inborn Errors Working Party.
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Buso H, Adam E, Arkwright PD, Bhattad S, Hamidieh AA, Behfar M, Belot A, Benezech S, Chan AY, Crow YJ, Dvorak CC, Flinn AM, Kapoor U, Lankester A, Kobayashi M, Matsumura R, Mottaghipisheh H, Okada S, Ouachee M, Parvaneh N, Ramprakash S, Satwani P, Sharafian S, Triaille C, Wynn RF, Movahedi N, Ziaee V, Williams E, Slatter M, and Gennery AR
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- Humans, Female, Male, Child, Child, Preschool, Adolescent, Infant, Retrospective Studies, Young Adult, Treatment Outcome, Graft vs Host Disease etiology, Graft vs Host Disease diagnosis, Adult, Hematopoietic Stem Cell Transplantation methods, Complement C1q deficiency, Complement C1q genetics
- Abstract
C1q deficiency is a rare inborn error of immunity characterized by increased susceptibility to infections and autoimmune manifestations mimicking SLE, with an associated morbidity and mortality. Because C1q is synthesized by monocytes, to date, four patients treated with allogeneic HSCT have been reported, with a positive outcome in three. We conducted an international retrospective study to assess the outcome of HSCT in C1q deficiency. Eighteen patients, fourteen previously unreported, from eleven referral centres, were included. Two patients had two HSCTs, thus 20 HSCTs were performed in total, at a median age of 10 years (range 0.9-19). Indications for HSCT were autoimmune manifestations not controlled by ongoing treatment in seventeen, and early development of MALT lymphoma in one patient. Overall survival (OS) was 71% and event-free survival was 59% at two years (considering an event as acute GvHD ≥ grade III, disease recurrence and death). In eleven patients HSCT led to resolution of autoimmune features and discontinuation of immunosuppressive treatments (follow-up time range 3-84 months). Five patients died due to transplant-related complications. Patients with a severe autoimmune phenotype, defined as neurological and/or renal involvement, had the worst OS (40% vs 84%; p = 0.034). Reviewing data of 69 genetically confirmed C1q deficient patients, we found that anti-Ro antibodies are associated with neurologic involvement, and anti-RNP and anti-DNA antibodies with renal involvement. In conclusion, HSCT may be a valid curative option for C1q deficiency, but careful selection of patients, with an accurate assessment of risk and benefit, is mandatory., (© 2024. The Author(s).)
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- 2024
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27. Profile of 208 patients with inborn errors of immunity at a tertiary care center in South India.
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Bhattad S, Mohite RS, Singh N, Kotecha U, Jhawar P, Ramprakash S, Commondoor R, Jayaram A, Rayabarapu P, Kumar H, Unni J, Cyril G, Kumar S, Pachat D, Jakka S, Makam A, Porta F, and Ginigeri C
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- Child, Pregnancy, Humans, Female, Male, Tertiary Care Centers, India epidemiology, Autoimmunity, Guanine Nucleotide Exchange Factors
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Primary immune deficiencies or inborn errors of immunity (IEI) are a heterogeneous group of disorders that predispose affected individuals to infections, allergy, autoimmunity, autoinflammation and malignancies. IEIs are increasingly being recognized in the Indian subcontinent. Two hundred and eight patients diagnosed with an IEI during February 2017 to November 2021 at a tertiary care center in South India were included in the study. The clinical features, laboratory findings including microbiologic and genetic data, and treatment and outcome details were analyzed. The diagnosis of IEI was confirmed in a total of 208 patients (198 kindreds) based on relevant immunological tests and/or genetic tests. The male-to-female ratio was 1.8:1. Of the 208 patients, 72 (34.6%) were < 1 yr, 112 (53.8%) were 1-18 years, and 24 (11.5%) were above 18 years. The most common IEI in our cohort was SCID (17.7%) followed by CGD (12.9%) and CVID (9.1%). We also had a significant proportion of patients with DOCK8 deficiency (7.2%), LAD (6.2%) and six patients (2.8%) with autoinflammatory diseases. Autoimmunity was noted in forty-six (22%) patients. Molecular testing was performed in 152 patients by exome sequencing on the NGS platform, and a genetic variant was reported in 132 cases. Twenty-nine children underwent 34 HSCT, and 135 patients remain on supportive therapy such as immunoglobulin replacement and/or antimicrobial prophylaxis. Fifty-nine (28.3%) patients died during the study period, and infections were the predominant cause of mortality. Seven families underwent prenatal testing in the subsequent pregnancy. We describe the profile of 208 patients with IEI, and to the best of our knowledge, this represents the largest data on IEI from the Indian subcontinent reported so far., (© 2023. The Author(s), under exclusive licence to Springer Nature Switzerland AG.)
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- 2023
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28. Bone Marrow Quality Index: A Predictor of Acute Graft-versus-Host Disease in Hematopoietic Stem Cell Transplantation for Thalassemia.
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Agarwal RK, Dhanya R, Sedai A, Ankita K, Parmar L, Ramprakash S, Sandeep, Trivedi D, Shah V, Bhat N, Reddy M, R N, and Faulkner L
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- Humans, Bone Marrow, Transplantation, Homologous methods, Hematopoietic Stem Cell Mobilization, Granulocyte Colony-Stimulating Factor, Hematopoietic Stem Cell Transplantation adverse effects, Graft vs Host Disease diagnosis, Graft vs Host Disease etiology, Thalassemia therapy
- Abstract
Bone marrow (BM) continues to be the preferred source of stem cells in allogenic transplantation for nonmalignant disorders. Granulocyte colony-stimulating factor (G-CSF)-primed BM is associated with low rates of acute graft-versus-host disease (aGVHD) and allows reduced collection volumes while ensuring speedy engraftment. However, variability in BM harvest quality is a concern. This study evaluated the utility of a novel indicator, the Bone Marrow Quality Index (BMQI), to predict aGVHD. We analyzed 184 consecutive first matched related donor bone marrow transplants for thalassemia using G-CSF-primed bone marrow over 6 years from March 2017 to April 2023 across 2 centers in India. BMQI was defined as the ratio of the G-CSF-primed BM WBC count to the peripheral blood WBC count within 24 hours of harvest. European Society for Blood and Marrow Transplantation criteria were used to grade aGVHD. The log-rank test was used to assess the impact of BMQI on aGVHD. The chi-square test was used to compare categorical data, and the Wilcoxon rank-sum test was used to compare the numerical data. A Cox proportional hazards model was used to investigate the association of BMQI vis-à-vis other factors on aGVHD. Of the 184 patients studied, 19 had a BMQI <.9, 18 had a BMQI between .9 and 1, and the remaining 147 had a BMQI >1. The rate of aGVHD grade II-IV was 37% in patients with a BMQI <.9 , 22% in those with BMQI .9 to 1, and 12% in those with BMQI >1 (P = .018). Patients with BMQI <.9 had a 3.1-fold greater chance (95% confidence interval [CI], .9 to 10.6) and those with BMQI .9 to 1 had a 2-fold greater chance (95% CI, .5 to 6.6) of developing aGVHD grade II-IV. BMQI was the significant predictor associated with aGVHD hazard (P = .014). BMQI appears to be the most relevant and controllable predictor of aGVHD. It is a novel, informative, and very simple indicator that could influence aGVHD prophylaxis decision making. Our indicator is accurately measurable, inexpensive, precise, and timely; furthermore, it does not involve any sophisticated equipment and thus may be widely applicable. Prior knowledge of poor BM quality may help intensify prophylaxis and monitoring for aGVHD, as well as trigger a review of collection procedures., (Copyright © 2023 The American Society for Transplantation and Cellular Therapy. Published by Elsevier Inc. All rights reserved.)
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- 2023
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29. Miliaria Crystallina Type Rash as an Unusual Presentation of Acute Graft Versus Host Disease (GVHD) After Hematopoietic Stem Cell Transplant'.
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Mohite RS, Vidya MN, Kaur T, Furtado S, Raghuram CP, and Ramprakash S
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Competing Interests: There are no conflicts of interest.
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- 2023
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30. Genetically confirmed chronic granulomatous disease in a Kenyan child: case report.
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Marangu-Boore D, Kambuni F, Onyinkwa M, Ramprakash S, C P R, Eley B, and Bhattad S
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- Infant, Humans, Male, Child, Kenya, Trimethoprim, Sulfamethoxazole Drug Combination therapeutic use, Aftercare, Patient Discharge, Granulomatous Disease, Chronic diagnosis, Granulomatous Disease, Chronic genetics, Lymphadenopathy
- Abstract
Introduction: We report the first case of genetically confirmed chronic granulomatous disease (CGD) in a Kenyan child., Clinical Findings: A 7-month-old male infant, the only child of non-consanguineous parents, presented with cough, fever, fast breathing, oral thrush, and axillary lymphadenopathy ipsilateral to the Calmette-Guérin bacillus scar. He had been hospitalized 5 weeks prior for severe pneumonia. Plain chest radiography showed bilateral patchy airspace opacification; chest computed tomography revealed multiple large lung nodules and left axillary lymphadenopathy. HIV ELISA was negative; tuberculin skin test was positive; lymph node biopsy macroscopically revealed caseous granulomas seen on histology; isoniazid- and rifampicin-susceptible Mycobacterium tuberculosis complex isolate was detected on the Hain test. First-line anti-tuberculous drugs were added to his empiric treatment comprising piperacillin-tazobactam, amikacin, cotrimoxazole, and fluconazole. He was discharged after 10 days based on clinical resolution., Diagnoses Interventions and Outcome: An inborn error of immunity (IEI) was considered given the recurrent fevers and atypical lung nodules. Genetic analysis revealed a hemizygous pathogenic variant on CYBB in keeping with X-linked CGD. The child's fevers recurred 2 weeks post-discharge but completely resolved on prophylactic itraconazole and cotrimoxazole. He underwent a successful haplo-identical hematopoietic stem cell transplantation at an experienced center in India with his father as the donor and is currently doing well on post-transplant follow-up., Conclusion: Genetic testing is relatively accessible and cost-effective for the diagnosis of IEI in low-and-middle-income countries. Expert multi-disciplinary collaboration is key for successful outcomes., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Marangu-Boore, Kambuni, Onyinkwa, Ramprakash, C.P., Eley and Bhattad.)
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- 2023
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31. Do Weekly Surveillance Cultures Contribute to Antibiotic Stewardship and Correlate with Outcome of HSCT in Children? A Multicenter Real-World Experience of 5 Years from the Indian Subcontinent.
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Dhanya R, Agarwal RK, Ramprakash S, Trivedi D, Shah V, Bhat N, Reddy M, Elizabeth S, Batool A, Khalid S, and Faulkner L
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- Anti-Bacterial Agents pharmacology, Child, Escherichia coli, Humans, Infection Control, Klebsiella pneumoniae, Meropenem therapeutic use, Piperacillin, Tazobactam Drug Combination therapeutic use, Retrospective Studies, United States, Antimicrobial Stewardship, Bacteremia drug therapy, Graft vs Host Disease drug therapy, Hematopoietic Stem Cell Transplantation
- Abstract
The utility of weekly rectal swab surveillance cultures (RSSCs) as a resource to identify gut colonization with extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli or Klebsiella pneumoniae carbapenemase (KPC)-producing organisms and guide empirical antibiotic therapy in hematopoietic stem cell transplantation (HSCT) recipients continues to be a subject of interest. There is an urgent need to assess and justify modifications to empirical antibiotics based on regional epidemiology and patient groups. This study aimed to study the utility of weekly rectal swab surveillance cultures (RSSCs) to guide empirical antibiotic therapy and to examine the impact of gut colonization on transplantation outcomes. This retrospective analysis of 317 successive first HSCTs performed mainly for hemoglobinopathies was conducted in 3 pediatric bone marrow transplantation centers in the Indian subcontinent between April 2016 and April 2021. Transplantation, infection control, and febrile neutropenia management protocols were identical in the 3 centers. First-line antibiotics were chosen based on RCCS reports, with meropenem used for ESBL and high-dose meropenem with colistin used for carbapenemase-resistant colonization for first half of the study, with no adjustment made in the second half. Clinical response to antibiotics, long-term outcomes, antibiotic-resistant bacteremia, and acute graft-versus-host disease (GVHD) were analyzed. The log-rank test, chi-square, and Wilcoxon rank-sum tests were used to compare data using R Statistical software. Of the 871 weekly RSSCs done, 162 were positive for ESBL- or KPC-resistant organism. RCCSs were ESBL-positive in 106 patients (33%) and KPC-positive in 10 patients (3%). Among the 97 ESBL-positive patients for whom a antimicrobial susceptibility testing report was available, only 22 (25%) demonstrated clinical resistance to piperacillin-tazobactam (Pip-Taz). Among the 10 KPC-positive patients, only 4 (40%) demonstrated clinical resistance to Pip-Taz and 3 (30%) had clinical resistance to meropenem. Two-thirds of patients with ESBL-positive RSSC in whom first-line empirical antibiotics were used responded clinically. Even among the 15 patients who were resistant to first-line empirical antibiotics (Pip-Taz) on RSSC reports, 67% responded clinically to Pip-Taz. Twenty-seven of these patients (56%) never needed carbapenem therapy. Empirical Pip-Taz therapy in ESBL-positive patients did not prolong meropenem use within 100 days of transplantation (P = .18). All patients with a KPC-positive RSSC who received first-line empirical antibiotics responded clinically, including 4 who were resistant to Pip-Taz and 3 who were meropenem-resistant on RCCS. Comparing patients who were ESBL-positive, KPC-positive, and not positive for either showed no statistically significant differences in overall survival (OS) (P = .95), disease-free survival (DFS) (P = .45), transplantation-related mortality (TRM) (P = .97), graft rejection (P = .68), or rate of acute GVHD grade II-IV (P = .78). No statistically significant differences were seen between the ESBL-positive patients who received and those who did not receive higher-level empirical antibiotics in OS (P = .32), DFS (P = .64), TRM (P = .65), graft rejection (P = .46), acute GVHD grade II-IV (P = .26), or antibiotic-resistant bacteremia (P = .3). In the context of HSCT for nonmalignant hematologic disorders, choosing empiric antibiotic therapy based on RSSCs is not justified, even in regions with a high prevalence of antimicrobial resistance. Antimicrobial susceptibility testing reports in surveillance cultures did not correlate with in vivo clinical response. Colonization reported on weekly RSSCs showed no correlation with clinical outcomes. © 2021 American Society for Transplantation and Cellular Therapy. Published by Elsevier Inc., Competing Interests: Conflict of interest statement There are no conflicts of interest to report., (Copyright © 2021 The American Society for Transplantation and Cellular Therapy. Published by Elsevier Inc. All rights reserved.)
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- 2022
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32. Is it safe and efficacious to remove central lines in pediatric bone marrow transplant patients with platelets less than 20,000/μl?
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Marwah P, Ramprakash S, Prasad T R S, Gizhlaryan M, Trivedi D, Shah V, Chitaliya A, Elizabeth S, Agarwal RK, Dhanya R, and Faulkner L
- Abstract
Background: Patients with tunneled central venous lines (CVL) may develop bloodstream infections which at times are difficult to control without line removal. Concomitant severe thrombocytopenia with platelet transfusion refractoriness is often considered a major contraindication to any procedure involving a major blood vessel. There is very little literature on the clinical risks of tunneled central line removal in febrile pancytopenia patients., Procedure: We analyzed complications and outcomes in all our patients, a total of 52, who underwent CVL removal with platelets <20,000/μl., Results: CVL removal was done on a median day of 17.5 with 47 of the 52 patients never having achieved platelets engraftment prior to line removal. No bleeding episodes or unplanned transfusions could be associated with CVL removal. No other complications were also reported. All patients had time to hemostasis within 5 min of catheter removal. Removal of CVL under local anesthesia remained complication-free even at platelet counts less than 20,000/ul. A total of 31 patients were febrile at the time of CVL removal, of which 17 became afebrile within 2 days. We found no difference in defervescence when comparing those whose antibiotic therapy was changed/escalated versus those in whom it was not., Conclusion: Our findings suggest that central lines can be safely removed with platelet counts less than 20,000/ul and that this may result in enhanced bloodstream infection control. This might be particularly relevant to neutropenic patients in this day and age of multidrug-resistant organism emergence and paucity of new effective antibiotics., Competing Interests: The authors declare no conflict of interest., (© 2022 The Authors. eJHaem published by British Society for Haematology and John Wiley & Sons Ltd.)
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- 2022
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33. Pre-transplant donor-type red cell transfusion is a safe and effective strategy to reduce isohemagglutinin titers and prevent donor marrow infusion reactions in major ABO-mismatched transplants.
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Mehta P, Ramprakash S, Raghuram CP, Trivedi D, Dhanya R, Agarwal RK, and Faulkner L
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- Adolescent, Bone Marrow Transplantation adverse effects, Child, Child, Preschool, Female, Hemolysis, Humans, Male, Retrospective Studies, Tissue Donors, Transplantation, Homologous, ABO Blood-Group System blood, Blood Group Incompatibility blood, Bone Marrow Transplantation methods, Erythrocyte Transfusion methods, Hemagglutinins blood
- Abstract
ABO incompatibility is not a barrier to allogeneic stem cell transplant but may result in acute hemolytic reactions. As stem cell product manipulation is cumbersome, we are reporting the effectiveness and safety of donor-type red cell infusion as a method of reducing acute hemolytic reaction while using marrow as stem cell source. In major ABO-mismatched bone marrow transplants, manipulation of marrow product requires expertise and expensive equipment, which may not be readily available to transplant centers in low- and middle-income regions. The aim behind our study is to report a safe and effective strategy to reduce isohemagglutinin titers and prevent donor marrow infusion reactions in major ABO-mismatched transplants. We retrospectively analyzed 303 consecutive allogeneic bone marrow transplants (BMTs) for beta thalassemia major, between August 2015 and March 2020, with either major (n = 41) or bidirectional (n = 14) mismatches. When isohemagglutinin titers were 1:32 or higher, donor-type packed red blood cell was divided into 4 aliquots, irradiated and administered over 4 days at incremental volumes. Patients were observed for hemolytic reaction, and if no reaction, bone marrow was infused without manipulation. Out of 55 patients, 20 received donor-type blood infusion. Twelve patients showed evidence of mild hemolysis. None developed severe hemolytic or anaphylactic reaction. Titers were rechecked in 14 patients and all had reduction in titers, except for one. Our experience demonstrated that donor-type PRBC infusion is safe and effective in preventing acute hemolysis in major ABO-mismatched stem cell transplants even with bone marrow as graft source., (© 2021. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
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- 2021
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34. Successful Haploidentical Transplant Using Post-Transplant Cyclophosphamide in a Child with Chronic Granulomatous Disease-First Report from the Indian Subcontinent.
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Bhattad S, Raghuram CP, Porta F, and Ramprakash S
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- Alleles, Child, Preschool, Combined Modality Therapy, Cyclophosphamide administration & dosage, Cyclophosphamide adverse effects, Genotype, Granulomatous Disease, Chronic diagnosis, Granulomatous Disease, Chronic genetics, Humans, India, Male, Mutation, NADPH Oxidases genetics, Postoperative Care, Treatment Outcome, Cyclophosphamide therapeutic use, Granulomatous Disease, Chronic therapy, Hematopoietic Stem Cell Transplantation adverse effects, Hematopoietic Stem Cell Transplantation methods, Transplantation, Haploidentical
- Published
- 2021
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35. Cyclosporine-induced Leukoencephalopathy Precipitated Following Interaction with Ciprofloxacin.
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Nagabushana D, Chandrasekhar S, Ramprakash S, Avathi Venkatesha G, and Helavar RV
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A bone marrow transplant recipient on cyclosporine initiated on ciprofloxacin for a renal abscess presented with encephalopathy, right hemiparesis, and multiorgan dysfunction. Imaging revealed white matter signal changes characteristic of cyclosporine leukoencephalopathy. This case illustrates the potential drug interaction of cyclosporine with ciprofloxacin and the need to exercise caution while prescribing antibiotics with cyclosporine., Competing Interests: There are no conflicts of interest., (Copyright: © 2021 Journal of Pediatric Neurosciences.)
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- 2021
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36. Setting up and sustaining blood and marrow transplant services for children in middle-income economies: an experience-driven position paper on behalf of the EBMT PDWP.
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Faulkner L, Verna M, Rovelli A, Agarwal RK, Dhanya R, Parmar L, Sedai A, Kumari A, Ramprakash S, Raghuram CP, Mehta P, Elizabeth S, Khalid S, Batool A, Ghilani SK, Fatima I, Zara T, Marwah P, Soni R, Trivedi D, Conter V, Canesi M, Othman D, Faeq V, Kleinschmidt K, Yesillipek A, Lam CG, Howard SC, and Corbacioglu S
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- Bone Marrow Transplantation, Child, Humans, Middle East, Quality of Life, Bone Marrow, Hematopoietic Stem Cell Transplantation
- Abstract
Severe blood disorders and cancer are the leading cause of death and disability from noncommunicable diseases in the global pediatric population and a major financial burden. The most frequent of these conditions, namely sickle cell disease and severe thalassemia, are highly curable by blood or bone marrow transplantation (BMT) which can restore a normal health-related quality of life and be cost-effective. This position paper summarizes critical issues in extending global access to BMT based on ground experience in the start-up of several BMT units in middle-income countries (MICs) across South-East Asia and the Middle East where close to 700 allogeneic BMTs have been performed over a 10-year period. Basic requirements in terms of support systems, equipment, and consumables are summarized keeping in mind WHO's model essential lists and recommendations. BMT unit setup and maintenance costs are summarized as well as those per transplant. Low-risk BMT is feasible and safe in MICs with outcomes comparable to high-income countries but at a fraction of the cost. This report might be of assistance to health care institutions in MICs interested in developing hematopoietic stem cell transplantation services and strengthening context appropriate tertiary care and higher medical education.
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- 2021
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37. Clinical, Immunological, and Molecular Features of Severe Combined Immune Deficiency: A Multi-Institutional Experience From India.
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Vignesh P, Rawat A, Kumrah R, Singh A, Gummadi A, Sharma M, Kaur A, Nameirakpam J, Jindal A, Suri D, Gupta A, Khadwal A, Saikia B, Minz RW, Sharma K, Desai M, Taur P, Gowri V, Pandrowala A, Dalvi A, Jodhawat N, Kambli P, Madkaikar MR, Bhattad S, Ramprakash S, Cp R, Jayaram A, Sivasankaran M, Munirathnam D, Balaji S, Rajendran A, Aggarwal A, Singh K, Na F, George B, Mehta A, Lashkari HP, Uppuluri R, Raj R, Bartakke S, Gupta K, Sreedharanunni S, Ogura Y, Kato T, Imai K, Chan KW, Leung D, Ohara O, Nonoyama S, Hershfield M, Lau YL, and Singh S
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- Female, Humans, India epidemiology, Infant, Male, Severe Combined Immunodeficiency epidemiology, Severe Combined Immunodeficiency genetics, Severe Combined Immunodeficiency immunology
- Abstract
Background: Severe Combined Immune Deficiency (SCID) is an inherited defect in lymphocyte development and function that results in life-threatening opportunistic infections in early infancy. Data on SCID from developing countries are scarce., Objective: To describe clinical and laboratory features of SCID diagnosed at immunology centers across India., Methods: A detailed case proforma in an Excel format was prepared by one of the authors (PV) and was sent to centers in India that care for patients with primary immunodeficiency diseases. We collated clinical, laboratory, and molecular details of patients with clinical profile suggestive of SCID and their outcomes. Twelve (12) centers provided necessary details which were then compiled and analyzed. Diagnosis of SCID/combined immune deficiency (CID) was based on 2018 European Society for Immunodeficiencies working definition for SCID., Results: We obtained data on 277 children; 254 were categorized as SCID and 23 as CID. Male-female ratio was 196:81. Median (inter-quartile range) age of onset of clinical symptoms and diagnosis was 2.5 months (1, 5) and 5 months (3.5, 8), respectively. Molecular diagnosis was obtained in 162 patients - IL2RG (36), RAG1 (26), ADA (19), RAG2 (17), JAK3 (15), DCLRE1C (13), IL7RA (9), PNP (3), RFXAP (3), CIITA (2), RFXANK (2), NHEJ1 (2), CD3E (2), CD3D (2), RFX5 (2), ZAP70 (2), STK4 (1), CORO1A (1), STIM1 (1), PRKDC (1), AK2 (1), DOCK2 (1), and SP100 (1). Only 23 children (8.3%) received hematopoietic stem cell transplantation (HSCT). Of these, 11 are doing well post-HSCT. Mortality was recorded in 210 children (75.8%)., Conclusion: We document an exponential rise in number of cases diagnosed to have SCID over the last 10 years, probably as a result of increasing awareness and improvement in diagnostic facilities at various centers in India. We suspect that these numbers are just the tip of the iceberg. Majority of patients with SCID in India are probably not being recognized and diagnosed at present. Newborn screening for SCID is the need of the hour. Easy access to pediatric HSCT services would ensure that these patients are offered HSCT at an early age., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Vignesh, Rawat, Kumrah, Singh, Gummadi, Sharma, Kaur, Nameirakpam, Jindal, Suri, Gupta, Khadwal, Saikia, Minz, Sharma, Desai, Taur, Gowri, Pandrowala, Dalvi, Jodhawat, Kambli, Madkaikar, Bhattad, Ramprakash, CP, Jayaram, Sivasankaran, Munirathnam, Balaji, Rajendran, Aggarwal, Singh, Na, George, Mehta, Lashkari, Uppuluri, Raj, Bartakke, Gupta, Sreedharanunni, Ogura, Kato, Imai, Chan, Leung, Ohara, Nonoyama, Hershfield, Lau and Singh.)
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- 2021
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38. Clinical and Genetic Spectrum of a Large Cohort of Patients With Leukocyte Adhesion Deficiency Type 1 and 3: A Multicentric Study From India.
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Kambli PM, Bargir UA, Yadav RM, Gupta MR, Dalvi AD, Hule G, Kelkar M, Sawant-Desai S, Setia P, Jodhawat N, Nambiar N, Dhawale A, Gaikwad P, Shinde S, Taur P, Gowri V, Pandrowala A, Gupta A, Joshi V, Sharma M, Arora K, Pilania RK, Chaudhary H, Agarwal A, Katiyar S, Bhattad S, Ramprakash S, Cp R, Jayaram A, Gornale V, Raj R, Uppuluri R, Sivasankaran M, Munirathnam D, Lashkari HP, Kalra M, Sachdeva A, Sharma A, Balaji S, Govindraj GM, Karande S, Nanavati R, Manglani M, Subramanyam G, Sampagar A, Ck I, Gutha P, Kanakia S, Mundada SP, Krishna V, Nampoothiri S, Nemani S, Rawat A, Desai M, and Madkaikar M
- Subjects
- Adolescent, CD18 Antigens genetics, Child, Child, Preschool, Cohort Studies, Female, Humans, India, Infant, Infant, Newborn, Leukocyte-Adhesion Deficiency Syndrome pathology, Leukocytosis genetics, Leukocytosis pathology, Male, Membrane Proteins genetics, Mutation genetics, Neutrophils pathology, Cell Adhesion genetics, Leukocyte-Adhesion Deficiency Syndrome genetics, Leukocytes pathology
- Abstract
Leukocyte adhesion deficiency (LAD) syndrome is a group of inborn errors of immunity characterized by a defect in the cascade of the activation and adhesion leading to the failure of leukocyte to migrate to the site of tissue injury. Three different types of LAD have been described. The most common subtype is LAD type 1 (LAD1) caused due to defects in the ITGβ2 gene. LAD type 2 (LAD2) is caused by mutations in the SLC35C1 gene leading to a generalized loss of expression of fucosylated glycans on the cell surface and LAD type 3 (LAD3) is caused by mutations in the FERMT3 gene resulting in platelet function defects along with immunodeficiency. There is a paucity of data available from India on LAD syndromes. The present study is a retrospective analysis of patients with LAD collated from 28 different centers across India. For LAD1, the diagnosis was based on clinical features and flow cytometric expression of CD18 on peripheral blood leukocytes and molecular confirmation by Sanger sequencing. For patients with LAD3 diagnosis was largely based on clinical manifestations and identification of the pathogenic mutation in the FERMT3 gene by next-generation Sequencing. Of the total 132 cases diagnosed with LAD, 127 were LAD1 and 5 were LAD3. The majority of our patients (83%) had CD18 expression less than 2% on neutrophils (LAD1°) and presented within the first three months of life with omphalitis, skin and soft tissue infections, delayed umbilical cord detachment, otitis media, and sepsis. The patients with CD18 expression of more than 30% (LAD1
+ ) presented later in life with skin ulcers being the commonest manifestation. Bleeding manifestations were common in patients with LAD3. Persistent neutrophilic leukocytosis was the characteristic finding in all patients. 35 novel mutations were detected in the ITGβ2 gene, and 4 novel mutations were detected in the FERMT3 gene. The study thus presents one of the largest cohorts of patients from India with LAD, focusing on clinical features, immunological characteristics, and molecular spectrum., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2020 Kambli, Bargir, Yadav, Gupta, Dalvi, Hule, Kelkar, Sawant-Desai, Setia, Jodhawat, Nambiar, Dhawale, Gaikwad, Shinde, Taur, Gowri, Pandrowala, Gupta, Joshi, Sharma, Arora, Pilania, Chaudhary, Agarwal, Katiyar, Bhattad, Ramprakash, CP, Jayaram, Gornale, Raj, Uppuluri, Sivasankaran, Munirathnam, Lashkari, Kalra, Sachdeva, Sharma, Balaji, Govindraj, Karande, Nanavati, Manglani, Subramanyam, Sampagar, CK, Gutha, Kanakia, Mundada, Krishna, Nampoothiri, Nemani, Rawat, Desai and Madkaikar.)- Published
- 2020
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39. Splenomegaly May Increase the Risk of Rejection in Low-Risk Matched Related Donor Transplant for Thalassemia, This Risk Can Be Partially Overcome by Additional Immunosuppression during Conditioning.
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Ramprakash S, Raghuram CP, Marwah P, Soni R, Trivedi D, Khalid S, Yaqub N, Itrat F, Gilani SK, Zahra T, Dhanya R, Agarwal RK, and Faulkner L
- Subjects
- Antilymphocyte Serum therapeutic use, Busulfan, Cyclophosphamide therapeutic use, France, Germany, Humans, Retrospective Studies, Splenomegaly, Transplantation Conditioning, Graft vs Host Disease, Thalassemia
- Abstract
Severe thalassemia syndromes (ST) are highly curable by bone marrow transplant (BMT), but rejection may still occur. We retrospectively analyzed our fully matched related donor transplants to establish if isolated splenomegaly is an independent risk factor for rejection and if this risk can be reduced by modifying the conditioning protocol. In this study, we compared rejection rates between patients with and without splenomegaly in 189 consecutive low-risk ST transplants across 2 sequential conditioning regimens: regimen A (August 2013 to December 2016): busulfan (14 mg/kg oral, not adjusted to serum levels), cyclophosphamide (200 mg/kg), and anti-thymocyte globulin (ATG) (Genzyme (Sanofi, Paris, France) 4 mg/kg or Fresenius (Grafalon, Neovii Biotech GmbH, Gräfelfing Germany) 16 mg/kg on days -12 to -10), and regimen B: same backbone as regimen A except fludarabine total dose of 150 mg was added upfront and ATG dose was increased to 7 mg/kg in case of splenomegaly and/or sex-mismatched transplants (January 2017 to September 2018). Compared with regimen A, in regimen B, both overall rejection rates (RRs) (16% versus 6.5%, P = .023) and treatment-related mortality (TRM) (9.9% versus 2.8%, P = .038) improved significantly. By Cox regression analysis, the improvement in RR between the 2 protocols was particularly significant in patients with splenomegaly (RR 54.5% versus 6.5%, P = .00015; TRM 18.2% versus 6.5%, P = .25) (hazard ratio, 4.13; confidence interval, 1.61 to 10.6; P = .003). The increased risk of rejection related to splenomegaly can be overcome by adding fludarabine to the standard ATG-Busulfan- Cyclophosphamide (ATG-Bu-Cy) protocol without significantly increasing transplant-related morbidity and mortality or resorting to splenectomy pre-BMT., (Copyright © 2020 American Society for Transplantation and Cellular Therapy. Published by Elsevier Inc. All rights reserved.)
- Published
- 2020
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40. The impact of Host vs. Graft mismatches on rejection of haploidentical bone marrow transplants in thalassemia patients using posttransplant cyclophosphamide.
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Marwah P, Soni R, Ramprakash S, Raghuram CP, Trivedi D, Kumar Agarwal R, Dhanya R, Sedai A, Kumari A, Parmar L, and Faulkner L
- Subjects
- Bone Marrow Transplantation, Cyclophosphamide, Graft Rejection, Humans, Transplantation, Haploidentical, Graft vs Host Disease, Thalassemia therapy
- Published
- 2020
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41. Life expectancy and risk factors for early death in patients with severe thalassemia syndromes in South India.
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Dhanya R, Sedai A, Ankita K, Parmar L, Agarwal RK, Hegde S, Ramaswami G, Gowda A, Girija S, Gujjal P, Pushpa H, Ramaiah JD, Karri C, Jali S, Tallur NR, Shenoy UV, Pinto D, Ramprakash S, Raghuram CP, Trivedi D, Cao X, and Faulkner L
- Subjects
- Child, Female, Humans, India epidemiology, Male, Retrospective Studies, Risk Factors, Syndrome, Life Expectancy, Thalassemia epidemiology, Thalassemia therapy
- Abstract
In spite of advances in chelation therapy and screening of blood, mortality associated with the most common life-threatening noncommunicable disease of children in India, transfusion-dependent thalassemia (TDT), remains poorly defined. This study aims at estimating death rates and mortality risk factors associated with TDT. The clinical records of 1087 patients from 5 thalassemia centers in India were retrospectively analyzed from 2011 to 2018. Median patient age was 8.5 years, with 107 patients older than 18 years; 656 patients were male and 431 were female. Demographic details and clinical parameters were analyzed at presentation and at last visit. With 41 recorded deaths, actuarial survival at 26.9 years was 50%, and under-5 mortality was 7 times higher than in the general population. Patients with transfusion-transmitted infections (TTIs) had 3.4 times higher risk for death (P = .031). Serum ferritin higher than 4000 ng/dL had 4.6 times higher risk for mortality compared with ferritin lower than 1000 ng/dL (P = .00063). A hemoglobin drop lower than 2 g/dL per week had 7.7 times higher mortality risk compared with a drop of less than 1 g/dL per week (P < .0001). Social determinants (sex, economic status, and distance from center), splenectomy, and even cardiac complications were not associated with higher mortality risk. Main causes of death were infection, iron overload, TTIs, and allo-immunization. Patients who received more than 4 years of adequate care had more than 66% mortality risk reduction (P < .0001). TDT in India continues to result in high mortality. Ineffective transfusion, TTIs, and chelation continue to be the most significant risk factors. Comprehensive care in dedicated day care centers from early age is likely to improve outcomes., (© 2020 by The American Society of Hematology.)
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- 2020
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42. Information Technology-Assisted Treatment Planning and Performance Assessment for Severe Thalassemia Care in Low- and Middle-Income Countries: Observational Study.
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Agarwal RK, Sedai A, Ankita K, Parmar L, Dhanya R, Dhimal S, Sriniwas R, Gowda A, Gujjal P, H P, Jain S, Ramaiah JD, Jali S, Tallur NR, Ramprakash S, and Faulkner L
- Abstract
Background: Successful models of information and communication technology (ICT) applied to cost-effective delivery of quality care in low- and middle-income countries (LMIC) are an increasing necessity. Severe thalassemia is one of the most common life-threatening noncommunicable diseases of children globally., Objective: The aim was to study the impact of ICT on quality of care for severe thalassemia patients in LMIC., Methods: A total of 1110 patients with severe thalassemia from five centers in India were followed over a 1-year period. The impact of consistent use of a Web-based platform designed to assist comprehensive management of severe thalassemia (ThalCare) on key indicators of quality of care such as minimum (pretransfusion) hemoglobin, serum ferritin, liver size, and spleen size were assessed., Results: Overall improvements in initial hemoglobin, ferritin, and liver and spleen size were significant (P<.001 for each). For four centers, the improvement in mean pretransfusion hemoglobin level was statistically significant (P<.001). Four of five centers achieved reduction in mean ferritin levels, with two displaying a significant drop in ferritin (P=.004 and P<.001). One of the five centers did not record liver and spleen size on palpation, but of the remaining four centers, two witnessed a large drop in liver and spleen size (P<.01), one witnessed moderate drop (P=.05 for liver; P=.03 for spleen size), while the fourth witnessed a moderate increase in liver size (P=.08) and insignificant change in spleen size (P=.12)., Conclusions: Implementation of computer-assisted treatment planning and performance assessment consistently and positively impacted indexes reflecting effective delivery of care to patients suffering from severe thalassemia in LMIC., (©Rajat Kumar Agarwal, Amit Sedai, Kumari Ankita, Lalith Parmar, Rakesh Dhanya, Sunil Dhimal, Reshma Sriniwas, Ashwini Gowda, Pooja Gujjal, Pushpa H, Suman Jain, J Dasaratha Ramaiah, Sujata Jali, Neelavva Rayappa Tallur, Stalin Ramprakash, Lawrence Faulkner. Originally published in JMIR Medical Informatics (http://medinform.jmir.org), 23.01.2019.)
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- 2019
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43. Variation in Transfusion Requirements Among Children With Thalassemia on Regular Transfusion Programs: Which Formula Closely Predicts the Actual Requirements?
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Cornell N, Eisenhut M, and Ramprakash S
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- Adolescent, Body Weight, Child, Child, Preschool, Female, Hematocrit, Hemoglobins, Humans, Infant, Male, United Kingdom, Blood Transfusion statistics & numerical data, Precision Medicine methods, Thalassemia therapy
- Abstract
Background: Various different formulae are used to calculate blood transfusion volumes in thalassemia. Using the right formula will avoid iron overload and complications of undertransfusion., Observations: Five years of transfusion data in 11 children with thalassemia showed that no single formula-calculated transfusion volumes accurately. The formula used in the United Kingdom with a hematocrit of the transfused blood of 0.6: (0.4×body weight×desired raise in hemoglobin [g/L]) yielded a volume closest to empirically determined requirements on average. Transfusion factors ranging from 0.3 to 0.48 were calculated as necessary to achieve the required volume for the individual patient., Conclusions: To meet transfusion requirements, individualization of formulas by establishment of the transfusion factor for each patient is helpful.
- Published
- 2017
- Full Text
- View/download PDF
44. ATG vs thiotepa with busulfan and cyclophosphamide in matched-related bone marrow transplantation for thalassemia.
- Author
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Faulkner L, Uderzo C, Khalid S, Marwah P, Soni R, Yaqub N, Amanat S, Fatima I, Gilani SK, Zahra T, Ramprakash S, Gooneratne L, Dissanayake R, Williams S, Rathnayake W, Srinivas R, Sedai A, Kumari A, Parmar L, Dhanya R, and Agarwal RK
- Abstract
Matched-related bone marrow transplantation (BMT) may cure >80% of low-risk children with severe thalassemia (ST). Very long-term follow-up studies have shown how the standard busulfan-cyclophosphamide (BuCy) regimen may be associated with normalization of health-related quality of life, no second malignancies in the absence of chronic graft-versus-host disease, and fertility preservation in many patients. However, because BuCy may be associated with high rejection rates, some centers incorporate thiotepa (Tt) in busulfan- or treosulfan-based regimens, a combination that may increase the risk of permanent infertility. This study retrospectively compares matched-related BMT outcomes in 2 groups of low-risk ST patients conditioned with either Tt or anti-thymocyte globulin (ATG) in addition to BuCy. A total of 81 consecutive first BMTs were performed in 5 collaborating startup BMT centers in the Indian subcontinent between January 2009 and January 2016; 30 patients were transplanted after conditioning with Tt-BuCy between January 2009 and July 2013, whereas between August 2013 and January 2016, 51 patients received ATG-BuCy. All patients were <15 years and had no hepatomegaly (liver ≤2 cm from costal margin). Actuarial overall survival in the Tt-BuCy and ATG-BuCy groups was 87% and 94% and thalassemia-free survival was 80% and 85% at a median follow-up of 37 and 17 months, respectively, with no significant differences by log-rank statistics. Substituting Tt with ATG in the standard BuCy context seems safe and effective and may decrease transplant-related mortality. Higher fertility rates are expected for patients who received ATG-BuCy., Competing Interests: Conflict-of-interest disclosure: The authors declare no competing financial interests.
- Published
- 2017
- Full Text
- View/download PDF
45. Juvenile fibromyalgia in an adolescent patient with sickle cell disease presenting with chronic pain.
- Author
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Ramprakash S and Fishman D
- Subjects
- Adolescent, Child, Child, Preschool, Chronic Pain etiology, Diagnosis, Differential, Fibromyalgia etiology, Humans, Infant, Infant, Newborn, Male, Anemia, Sickle Cell complications, Chronic Pain diagnosis, Fibromyalgia diagnosis
- Abstract
Juvenile fibromyalgia in children with sickle cell disease has not been reported in the literature. We report an adolescent patient with sickle cell whose pain symptoms progressed from having recurrent acute sickle cell pain crisis episodes to a chronic pain syndrome over several years. He was eventually diagnosed with juvenile fibromyalgia based on the clinical history and myofascial tender points and his pain symptoms responded better to multidisciplinary strategies for chronic fibromyalgia pain. Chronic pain in sickle cell disease is an area of poor research, and in addition there is inconsistency in the definition of chronic pain in sickle cell disease. Central sensitisation to pain is shown to occur after recurrent painful stimuli in a genetically vulnerable individual. In a chronic pain condition such as fibromyalgia central sensitisation is thought to play a key role. Fibromyalgia should be considered as one of the main differential diagnosis in any sickle cell patient with chronic pain., (2015 BMJ Publishing Group Ltd.)
- Published
- 2015
- Full Text
- View/download PDF
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