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Nisarg S, Tirlangi PK, Ravindra P, Bhat R, Sujir SN, Alli SD, Chowdhury S, Earny VA, Gupta N, Mukhopadhyay C. Predictors of 28-day mortality in melioidosis patients presenting to an emergency department: a retrospective cohort study from South India. Trans R Soc Trop Med Hyg 2024:trae017. [PMID: 38554065 DOI: 10.1093/trstmh/trae017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 01/02/2024] [Accepted: 03/08/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Septic melioidosis is associated with high mortality in resource-limited settings. The current study aims to find 28-d all-cause mortality predictors within 24 h of admission in melioidosis patients presenting to an emergency department. METHODS This retrospective cohort study (2018-2022) included melioidosis patients divided into two groups based on their primary outcomes (28-d mortality). All the clinically relevant factors significant in univariate analysis were selected for binary logistic regression analysis. Those factors significant in logistic regression analysis were considered independent predictors of mortality. RESULTS Of the 53 patients with melioidosis, the 28-d mortality of melioidosis patients admitted to the emergency department was 51% (n=27). Respiratory involvement, renal dysfunction, haemodynamic instability, elevated aspartate transaminase, elevated activated partial thromboplastin time, elevated CRP, elevated procalcitonin, decreased albumin, decreased absolute neutrophil count, decreased absolute lymphocyte count and use of piperacillin-tazobactam or azithromycin were significant predictors of mortality on univariate analysis. Vasopressor requirement (p=0.03) and low serum albumin level (0.041) at presentation were independent predictors of mortality. CONCLUSION Vasopressor requirement and low albumin levels at presentation in the emergency department are independent predictors of mortality. There is a need to create awareness among primary care physicians to enable early diagnosis and prompt initiation of treatment.
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Affiliation(s)
- S Nisarg
- De part ment of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Praveen Kumar Tirlangi
- Department of Infectious Diseases, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Prithvishree Ravindra
- De part ment of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Rachana Bhat
- De part ment of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Sachin Nayak Sujir
- De part ment of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Sai Deepak Alli
- De part ment of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Soumi Chowdhury
- Department of Microbiology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Venkat Abhiram Earny
- Department of Microbiology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Nitin Gupta
- Department of Infectious Diseases, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Chiranjay Mukhopadhyay
- Department of Microbiology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
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Gupta N, Malla S, Tirlangi PK, Magazine R, Chandrashekar UK, Ravindra P, Bhat R, Varma M, Mukhopadhyay C. Reversed halo sign: Don't forget Melioidosis. J Travel Med 2024:taae036. [PMID: 38438163 DOI: 10.1093/jtm/taae036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 02/16/2024] [Indexed: 03/06/2024]
Affiliation(s)
- Nitin Gupta
- Department of Infectious Diseases, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Sundeep Malla
- Department of Radiodiagnosis, Amrita Institute of Medical Sciences, Faridabad, India
| | - Praveen Kumar Tirlangi
- Department of Infectious Diseases, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Rahul Magazine
- Department of Respiratory Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - U K Chandrashekar
- Department of Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Prithvishree Ravindra
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Muralidhar Varma
- Department of Infectious Diseases, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Chiranjay Mukhopadhyay
- Department of Microbiology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
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Zargar FA, Khanday MA, Ashraf M, Bhat R. Impact of radiation therapy on healthy and cancerous cell dynamics: a Mathematical analysis. Comput Methods Biomech Biomed Engin 2024:1-11. [PMID: 38270349 DOI: 10.1080/10255842.2024.2308700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 01/01/2024] [Indexed: 01/26/2024]
Abstract
This study proposes a novel therapeutic model for cancer treatment with radiation therapy by analyzing the interactions among cancer, immune and healthy cells through a system of three ordinary differential equations. In this model, the natural influx rate of mature immune cells is assumed constant and is denoted by, a. The overall effect of radiation therapy on cancer cells is represented by a parameter, s; which is the surviving fraction of cells as determined by the Linear Quadratic (LQ) model. Conditions for the stability of equilibria in the interaction model modified to include the surviving fraction, are systematically established in terms of the dose and model parameters. Numerical simulations are performed in Wolfram MATHEMATICA software, investigating a spectrum of initial cell population values irradiated with 60Co γ -ray Low-LET radiation and High-LET 165 keV / μ m Ni-ion radiation to facilitate improved visualization and in-depth analysis. By analyzing the model, this study identifies threshold values for the absorbed dose D for particular values of the model and radiation parameters for both High Linear Energy Transfer (high-LET) and Low Linear Energy Transfer (low-LET) radiations that ensure either eradication or minimization of cancer cells from a patient's body, providing valuable insights for designing effective cancer treatments.
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Affiliation(s)
- F A Zargar
- Department of Mathematics, University of Kashmir, Srinagar, India
| | - M A Khanday
- Department of Mathematics, University of Kashmir, Srinagar, India
| | - Mudasir Ashraf
- Radiological Physics, Department of Radiodiagnosis, JNMC, Aligarh Muslim University, Aligarh, India
| | - R Bhat
- Department of Mathematics, School of Chemical Engineering and Physical Sciences, LPU, Phagwara, India
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Ponnaiah M, Bhatnagar T, Abdulkader RS, Elumalai R, Surya J, Jeyashree K, Kumar MS, Govindaraju R, Thangaraj JWV, Aggarwal HK, Balan S, Baruah TD, Basu A, Bavaskar Y, Bhadoria AS, Bhalla A, Bhardwaj P, Bhat R, Chakravarty J, Chandy GM, Gupta BK, Kakkar R, Karnam AHF, Kataria S, Khambholja J, Kumar D, Kumar N, Lyngdoh M, Meena MS, Mehta K, Sheethal MP, Mukherjee S, Mundra A, Murugan A, Narayanan S, Nathan B, Ojah J, Patil P, Pawar S, Ruban ACP, Vadivelu R, Rana RK, Boopathy SN, Priya S, Sahoo SK, Shah A, Shameem M, Shanmugam K, Shivnitwar SK, Singhai A, Srivastava S, Sulgante S, Talukdar A, Verma A, Vohra R, Wani RT, Bathula B, Kumari G, Kumar DS, Narasimhan A, Krupa NC, Senguttuvan T, Surendran P, Tamilmani D, Turuk A, Kumar G, Murkherjee A, Aggarwal R, Murhekar MV. Authors' response. Indian J Med Res 2024; 159:44-45. [PMID: 38366984 PMCID: PMC10954097 DOI: 10.4103/ijmr.ijmr_265_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2024] Open
Affiliation(s)
- Manickam Ponnaiah
- Division of Online Courses, ICMR-National Institute of Epidemiology, Chennai, India
| | - Tarun Bhatnagar
- ICMR School of Public Health, ICMR-National Institute of Epidemiology, Chennai, India
| | | | - Rajalakshmi Elumalai
- Division of Online Courses, ICMR-National Institute of Epidemiology, Chennai, India
| | - Janani Surya
- Division of Epidemiology & Biostatistics, ICMR-National Institute of Epidemiology, Chennai, India
| | - Kathiresan Jeyashree
- Division of Epidemiology & Biostatistics, ICMR-National Institute of Epidemiology, Chennai, India
| | | | - Ranjithkumar Govindaraju
- Division of Epidemiology & Biostatistics, ICMR-National Institute of Epidemiology, Chennai, India
| | | | - Hari Krishan Aggarwal
- Department of Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India
| | - Suresh Balan
- Department of Community Medicine, Kanyakumari Government Medical College, Kanyakumari, India
| | - Tridip Dutta Baruah
- Department of General Surgery, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Ayan Basu
- Department of Infectious Disease, Institute of Postgraduate Medical Education & Research, Kolkata, West Bengal, India
| | - Yogita Bavaskar
- Department of Community Medicine, Government Medical College, Jalgaon, India
| | - Ajeet Singh Bhadoria
- Department of Community & Family Medicine, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Ashish Bhalla
- Department of Internal Medicine, Post Graduate Institute of Medical Education & Research, Chandigarh, India
| | - Pankaj Bhardwaj
- Department of SPH & Community Medicine, All India Institute of Medical Sciences, Jodhpur, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Jaya Chakravarty
- Department of General Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Gina Maryann Chandy
- Department of Emergency Medicine, Christian Medical College & Hospital, Vellore, India
| | - Bal Kishan Gupta
- Department of Medicine, Sardar Patel Medical College, Bikaner, India
| | - Rakesh Kakkar
- Department of Community & Family Medicine, All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - Ali Hasan Faiz Karnam
- Department of Emergency & Critical Care Medicine, Pondicherry Institute of Medical Sciences, Puducherry, India
| | - Sushila Kataria
- Department of Internal Medicine, Medanta, Gurugram, Haryana, India
| | - Janakkumar Khambholja
- Department of General Medicine, Smt. NHL Municipal Medical College, Ahmedabad, India
| | - Dewesh Kumar
- Department of Community Medicine, Rajendra Institute of Medical Sciences, Ranchi, India
| | - Nithin Kumar
- Department of Community Medicine, Manipal Academy of Higher Education, Manipal, India
- Department of Community Medicine, Kasturba Medical College, Mangalore, Karnataka, India
| | - Monaliza Lyngdoh
- Department of General Medicine, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences, Shillong, Meghalaya, India
| | - M. Selva Meena
- Department of Community Medicine, Government Medical College, Virudhunagar, India
| | - Kedar Mehta
- Department of Community Medicine, GMERS Medical College, Vadodra, India
| | - M. P. Sheethal
- Department of Community Medicine, Adichunchanagiri Institute of Medical Sciences, Balagangadharnaatha Nagara, Mandya, India
| | - Subhasis Mukherjee
- Department of Respiratory Medicine, College of Medicine & Sagore Dutta Hospital, Kolkata, West Bengal, India
| | - Anuj Mundra
- Department of Community Medicine, Mahatma Gandhi Institute of Medical Sciences, Sewagram, Maharashtra, India
| | - Arun Murugan
- Department of Community Medicine, Government Medical College, Omandurar Government Estate, Chennai, India
| | - Seetharaman Narayanan
- Department of Community Medicine, KMCH Institute of Health Sciences & Research, Coimbatore, India
| | - Balamurugan Nathan
- Department of Emergency Medicine & Trauma, Jawaharlal Institute of Post Graduate Medical Education & Research, Puducherry, India
| | - Jutika Ojah
- Department of Community Medicine, Gauhati Medical College, Guwahati, Assam, India
| | - Pushpa Patil
- Department of Community Medicine, SDM College of Medical Science & Hospital, Dharwad, India
| | - Sunita Pawar
- Department of Community Medicine, Dr. Vasantrao Pawar Medical College, Hospital & Research Center, Nashik, India
| | - A. Charles Pon Ruban
- Department of Community Medicine, Tirunelveli Medical College & Hospital, Tirunelveli, India
| | - R. Vadivelu
- Department of Cardiology, Velammal Medical College Hospital & Research Institute, Madurai, Tamil Nadu, India
| | - Rishabh Kumar Rana
- Department of PSM/Community Medicine, Shaheed Nirmal Mahato Medical College, Dhanbad, Jharkhand, India
| | - S. Nagendra Boopathy
- Department of Cardiology, Sri Ramachandra Institute of Higher Education & Research, Chennai, India
| | - S. Priya
- Institute of Community Medicine, Madurai Medical College, Madurai, Tamil Nadu, India
| | - Saroj Kumar Sahoo
- Department of Trauma & Emergency, Division of Cardiology, All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Arti Shah
- Department of Respiratory Medicine, SBKS MI&RC, Sumandeep Vidyapeeth, Pipariya, Vadodara, Gujarat, India
| | - Mohammad Shameem
- Department of Respiratory Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Karthikeyan Shanmugam
- Department of Community Medicine, PSG Institute of Medical Sciences & Research, Coimbatore, India
| | - Sachin K. Shivnitwar
- Department of Medicine, Dnyandeo Yashwantrao Patil Medical College, Pune, Maharashtra, India
| | - Abhishek Singhai
- Department of Medicine, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Saurabh Srivastava
- Department of Medicine, Government Institute of Medical Sciences, Noida, India
| | - Sudheera Sulgante
- Department of Community Medicine, Bidar Institute of Medical Sciences, Bidar, India
| | - Arunansu Talukdar
- Department of Geriatric Medicine, Medical College, Kolkata, West Bengal, India
| | - Alka Verma
- Department of Emergency, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Rajaat Vohra
- Department of Community Medicine, Mahatma Gandhi Medical College & Hospital, Jaipur, Rajasthan, India
| | - Rabbanie Tariq Wani
- Department of Community Medicine, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir, India
| | - Bhargavi Bathula
- Division of Online Courses, ICMR-National Institute of Epidemiology, Chennai, India
| | - Gayathri Kumari
- Division of Epidemiology & Biostatistics, ICMR-National Institute of Epidemiology, Chennai, India
| | - Divya Saravana Kumar
- Division of Epidemiology & Biostatistics, ICMR-National Institute of Epidemiology, Chennai, India
| | - Aishwariya Narasimhan
- Division of Epidemiology & Biostatistics, ICMR-National Institute of Epidemiology, Chennai, India
| | - N. C. Krupa
- Division of Online Courses, ICMR-National Institute of Epidemiology, Chennai, India
| | | | - Parvathi Surendran
- Division of Epidemiology & Biostatistics, ICMR-National Institute of Epidemiology, Chennai, India
| | - Dharsikaa Tamilmani
- Division of Online Courses, ICMR-National Institute of Epidemiology, Chennai, India
| | - Alka Turuk
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Gunjan Kumar
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Aparna Murkherjee
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Rakesh Aggarwal
- Department of Medical Gastroenterology, Jawaharlal Institute of Post Graduate Medical Education & Research, Puducherry, India
| | - Manoj Vasant Murhekar
- Division of Epidemiology & Biostatistics, ICMR-National Institute of Epidemiology, Chennai, India
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5
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Ponnaiah M, Bhatnagar T, Abdulkader RS, Elumalai R, Surya J, Jeyashree K, Kumar MS, Govindaraju R, Thangaraj JWV, Aggarwal HK, Balan S, Baruah TD, Basu A, Bavaskar Y, Bhadoria AS, Bhalla A, Bhardwaj P, Bhat R, Chakravarty J, Chandy GM, Gupta BK, Kakkar R, Karnam AHF, Kataria S, Khambholja J, Kumar D, Kumar N, Lyngdoh M, Meena MS, Mehta K, Sheethal MP, Mukherjee S, Mundra A, Murugan A, Narayanan S, Nathan B, Ojah J, Patil P, Pawar S, Ruban ACP, Vadivelu R, Rana RK, Boopathy SN, Priya S, Sahoo SK, Shah A, Shameem M, Shanmugam K, Shivnitwar SK, Singhai A, Srivastava S, Sulgante S, Talukdar A, Verma A, Vohra R, Wani RT, Bathula B, Kumari G, Kumar DS, Narasimhan A, Krupa NC, Senguttuvan T, Surendran P, Tamilmani D, Turuk A, Kumar G, Murkherjee A, Aggarwal R, Murhekar MV. Authors' response. Indian J Med Res 2023; 158:505-508. [PMID: 38185675 PMCID: PMC10878485 DOI: 10.4103/ijmr.ijmr_24_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024] Open
Affiliation(s)
| | | | | | | | - Janani Surya
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Kathiresan Jeyashree
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | | | - Ranjithkumar Govindaraju
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | | | - Hari Krishan Aggarwal
- Department of Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana, India
| | - Suresh Balan
- Department of Community Medicine, Kanyakumari Government Medical College, Kanyakumari, Tamil Nadu, India
| | - Tridip Dutta Baruah
- Department of General Surgery, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Ayan Basu
- Infectious Disease Department, Institute of Postgraduate Medical Education & Research, Kolkata, West Bengal, India
| | - Yogita Bavaskar
- Department of Community Medicine, Government Medical College, Jalgaon, Maharashtra, India
| | - Ajeet Singh Bhadoria
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Ashish Bhalla
- Department of Internal Medicine, Post Graduate Institute of Medical Education & Research, Chandigarh, India
| | - Pankaj Bhardwaj
- SPH and Community Medicine, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Jaya Chakravarty
- Department of General Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Gina Maryann Chandy
- Department of Emergency Medicine, Christian Medical College & Hospital, Vellore, Tamil Nadu, India
| | - Bal Kishan Gupta
- Department of Medicine, Sardar Patel Medical College, Bikaner, Rajasthan, India
| | - Rakesh Kakkar
- Department of Community & Family Medicine, All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - Ali Hasan Faiz Karnam
- Department of Emergency and Critical Care Medicine, Pondicherry Institute of Medical Sciences, Puducherry, India
| | - Sushila Kataria
- Department of Internal Medicine, Medanta, Gurugram, Haryana, India
| | - Janakkumar Khambholja
- Department of General Medicine, Smt. NHL Municipal Medical College, Ahmedabad, India
| | - Dewesh Kumar
- Department of Community Medicine, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
| | - Nithin Kumar
- Department of Community Medicine, Manipal Academy of Higher Education, Manipal, Karnataka, India
- Department of Community Medicine, Kasturba Medical College, Mangalore, Karnataka, India
| | - Monaliza Lyngdoh
- Department of General Medicine, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences, Shillong, Meghalaya, India
| | - M. Selva Meena
- Department of Community Medicine, Government Medical College, Virudhunagar, Tamil Nadu, India
| | - Kedar Mehta
- Department of Community Medicine, GMERS Medical College, Vadodra, India
| | - M. P. Sheethal
- Department of Community Medicine, Adichunchanagiri Institute of Medical Sciences, Balagangadharnaatha Nagara, Mandya, Karnataka, India
| | - Subhasis Mukherjee
- Department of Respiratory Medicine, College of Medicine & Sagore Dutta Hospital, Kolkata, West Bengal, India
| | - Anuj Mundra
- Department of Community Medicine, Mahatma Gandhi Institute of Medical Sciences, Sewagram, Maharashtra, India
| | - Arun Murugan
- Department of Community Medicine, Government Medical College, Omandurar Government Estate, Chennai, Tamil Nadu, India
| | - Seetharaman Narayanan
- Department of Community Medicine, KMCH Institute of Health Sciences & Research, Coimbatore, Tamil Nadu, India
| | - Balamurugan Nathan
- Department of Emergency Medicine and Trauma, Jawaharlal Institute of Post Graduate Medical Education & Research, Puducherry, India
| | - Jutika Ojah
- Department of Community Medicine, Gauhati Medical College, Guwahati, Assam, India
| | - Pushpa Patil
- Department of Community Medicine, SDM College of Medical Science & Hospital, Dharwad, Karnataka, India
| | - Sunita Pawar
- Department of Community Medicine, Dr. Vasantrao Pawar Medical College, Hospital & Research Center, Nashik, Maharashtra, India
| | - A. Charles Pon Ruban
- Department of Community Medicine, Tirunelveli Medical College & Hospital, Tirunelveli, Tamil Nadu, India
| | - R. Vadivelu
- Department of Cardiology, Velammal Medical College Hospital & Research Institute, Madurai, Tamil Nadu, India
| | - Rishabh Kumar Rana
- Department of PSM/Community Medicine, Shaheed Nirmal Mahato Medical College, Dhanbad, Jharkhand, India
| | - S. Nagendra Boopathy
- Department of Cardiology, Sri Ramachandra Institute of Higher Education & Research, Chennai, Tamil Nadu, India
| | - S. Priya
- Institute of Community Medicine, Madurai Medical College, Madurai, Tamil Nadu, India
| | - Saroj Kumar Sahoo
- Department of Trauma & Emergency (Division of Cardiology), All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Arti Shah
- Department of Respiratory Medicine, SBKS MI&RC, Sumandeep Vidyapeeth, Pipariya, Vadodara, India
| | - Mohammad Shameem
- Department of Respiratory Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Karthikeyan Shanmugam
- Department of Community Medicine, PSG Institute of Medical Sciences & Research, Coimbatore, Tamil Nadu, India
| | - Sachin K. Shivnitwar
- Department of Medicine, Dnyandeo Yashwantrao Patil Medical College, Pune, Maharashtra, India
| | - Abhishek Singhai
- Department of Medicine, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Saurabh Srivastava
- Department of Medicine, Government Institute of Medical Sciences, Noida, Uttar Pradesh, India
| | - Sudheera Sulgante
- Department of Community Medicine, Bidar Institute of Medical Sciences, Bidar, Karnataka, India
| | - Arunansu Talukdar
- Department of Geriatric Medicine, Medical College, Kolkata, West Bengal, India
| | - Alka Verma
- Department of Emergency, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Rajaat Vohra
- Department of Community Medicine, Mahatma Gandhi Medical College & Hospital, Jaipur, Rajasthan, India
| | - Rabbanie Tariq Wani
- Department of Community Medicine, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir, India
| | | | - Gayathri Kumari
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Divya Saravana Kumar
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Aishwariya Narasimhan
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - N. C. Krupa
- Division of Online Courses, Chennai, Tamil Nadu, India
| | | | - Parvathi Surendran
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | | | - Alka Turuk
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Gunjan Kumar
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Aparna Murkherjee
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Rakesh Aggarwal
- Department of Medical Gastroenterology, Jawaharlal Institute of Post Graduate Medical Education & Research, Puducherry, India
| | - Manoj Vasant Murhekar
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
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Ponnaiah M, Bhatnagar T, Abdulkader RS, Elumalai R, Surya J, Jeyashree K, Kumar MS, Govindaraju R, Thangaraj JWV, Aggarwal HK, Balan S, Baruah TD, Basu A, Bavaskar Y, Bhadoria AS, Bhalla A, Bhardwaj P, Bhat R, Chakravarty J, Chandy GM, Gupta BK, Kakkar R, Karnam AHF, Kataria S, Khambholja J, Kumar D, Kumar N, Lyngdoh M, Meena MS, Mehta K, Sheethal MP, Mukherjee S, Mundra A, Murugan A, Narayanan S, Nathan B, Ojah J, Patil P, Pawar S, Ruban ACP, Vadivelu R, Rana RK, Boopathy SN, Priya S, Sahoo SK, Shah A, Shameem M, Shanmugam K, Shivnitwar SK, Singhai A, Srivastava S, Sulgante S, Talukdar A, Verma A, Vohra R, Wani RT, Bathula B, Kumari G, Kumar DS, Narasimhan A, Krupa NC, Senguttuvan T, Surendran P, Tamilmani D, Turuk A, Kumar G, Murkherjee A, Aggarwal R, Murhekar MV. Factors associated with unexplained sudden deaths among adults aged 18-45 years in India - A multicentric matched case-control study. Indian J Med Res 2023; 158:351-362. [PMID: 37988028 DOI: 10.4103/ijmr.ijmr_2105_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Indexed: 11/22/2023] Open
Abstract
BACKGROUND OBJECTIVES In view of anecdotal reports of sudden unexplained deaths in India's apparently healthy young adults, linking to coronavirus disease 2019 (COVID-19) infection or vaccination, we determined the factors associated with such deaths in individuals aged 18-45 years through a multicentric matched case-control study. METHODS This study was conducted through participation of 47 tertiary care hospitals across India. Cases were apparently healthy individuals aged 18-45 years without any known co-morbidity, who suddenly (<24 h of hospitalization or seen apparently healthy 24 h before death) died of unexplained causes during 1 st October 2021-31 st March 2023. Four controls were included per case matched for age, gender and neighborhood. We interviewed/perused records to collect data on COVID-19 vaccination/infection and post-COVID-19 conditions, family history of sudden death, smoking, recreational drug use, alcohol frequency and binge drinking and vigorous-intensity physical activity two days before death/interviews. We developed regression models considering COVID-19 vaccination ≤42 days before outcome, any vaccine received anytime and vaccine doses to compute an adjusted matched odds ratio (aOR) with 95 per cent confidence interval (CI). RESULTS Seven hundred twenty nine cases and 2916 controls were included in the analysis. Receipt of at least one dose of COVID-19 vaccine lowered the odds [aOR (95% CI)] for unexplained sudden death [0.58 (0.37, 0.92)], whereas past COVID-19 hospitalization [3.8 (1.36, 10.61)], family history of sudden death [2.53 (1.52, 4.21)], binge drinking 48 h before death/interview [5.29 (2.57, 10.89)], use of recreational drug/substance [2.92 (1.1, 7.71)] and performing vigorous-intensity physical activity 48 h before death/interview [3.7 (1.36, 10.05)] were positively associated. Two doses lowered the odds of unexplained sudden death [0.51 (0.28, 0.91)], whereas single dose did not. INTERPRETATION CONCLUSIONS COVID-19 vaccination did not increase the risk of unexplained sudden death among young adults in India. Past COVID-19 hospitalization, family history of sudden death and certain lifestyle behaviors increased the likelihood of unexplained sudden death.
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Affiliation(s)
| | | | | | | | - Janani Surya
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Kathiresan Jeyashree
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | | | - Ranjithkumar Govindaraju
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | | | - Hari Krishan Aggarwal
- Department of Medicine, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India
| | - Suresh Balan
- Department of Community Medicine, Kanyakumari Government Medical College, Kanyakumari, Tamil Nadu, India
| | - Tridip Dutta Baruah
- Department of General Surgery, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Ayan Basu
- Infectious Disease Department, Institute of Post-Graduate Medical Education & Research, West Bengal, India
| | - Yogita Bavaskar
- Department of Community Medicine, Government Medical College, Jalgaon, India
| | - Ajeet Singh Bhadoria
- Department of Community and Family Medicine, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Ashish Bhalla
- Department of Internal Medicine, Post Graduate Institute of Medical Education & Research, Chandigarh, India
| | - Pankaj Bhardwaj
- SPH and Community Medicine, All India Institute of Medical Sciences, Jodhpur, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, India
| | - Jaya Chakravarty
- Department of General Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Gina Maryann Chandy
- Department of Emergency Medicine, Christian Medical College & Hospital, Vellore, Tamil Nadu, India
| | - Bal Kishan Gupta
- Department of Medicine, Sardar Patel Medical College, Bikaner, India
| | - Rakesh Kakkar
- Department of Community & Family Medicine, All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - Ali Hasan Faiz Karnam
- Department of Emergency and Critical Care Medicine, Pondicherry Institute of Medical Sciences, Puducherry, India
| | - Sushila Kataria
- Department of Internal Medicine, Medanta, Gurugram, Haryana, India
| | - Janakkumar Khambholja
- Department of General Medicine, Smt. NHL Municipal Medical College, Ahmedabad, India
| | - Dewesh Kumar
- Department of Community Medicine, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
| | - Nithin Kumar
- Department of Community Medicine, Manipal Academy of Higher Education, Manipal, India
- Department of Community Medicine, Kasturba Medical College, Mangalore, Karnataka, India
| | - Monaliza Lyngdoh
- Department of General Medicine, North Eastern Indira Gandhi Regional Institute of Health & Medical Sciences, Shillong, Meghalaya, India
| | - M Selva Meena
- Department of Community Medicine, Government Medical College, Virudhunagar, Tamil Nadu, India
| | - Kedar Mehta
- Department of Community Medicine, GMERS Medical College, Vadodara, India
| | - M P Sheethal
- Department of Community Medicine, Adichunchanagiri Institute of Medical Sciences, Balagangadharanatha Nagara, Mandya, India
| | - Subhasis Mukherjee
- Department of Respiratory Medicine, College of Medicine & Sagore Dutta Hospital, West Bengal, India
| | - Anuj Mundra
- Department of Community Medicine, Mahatma Gandhi Institute of Medical Sciences, Sewagram, Maharashtra, India
| | - Arun Murugan
- Department of Community Medicine, Government Medical College, Omandurar Government Estate, Chennai, Tamil Nadu, India
| | - Seetharaman Narayanan
- Department of Community Medicine, KMCH Institute of Health Sciences & Research, Coimbatore, Tamil Nadu, India
| | - Balamurugan Nathan
- Department of Emergency Medicine & Trauma, Jawaharlal Institute of Post Graduate Medical Education & Research, Puducherry, India
| | - Jutika Ojah
- Department of Community Medicine, Gauhati Medical College, Guwahati, Assam, India
| | - Pushpa Patil
- Department of Community Medicine, SDM College of Medical Science & Hospital, Dharwad, India
| | - Sunita Pawar
- Department of Community Medicine, Dr. Vasantrao Pawar Medical College, Hospital & Research Center, Nashik, India
| | - A Charles Pon Ruban
- Department of Community Medicine, Tirunelveli Medical College & Hospital, Tirunelveli, Tamil Nadu, India
| | - R Vadivelu
- Department of Cardiology, Velammal Medical College Hospital & Research Institute, Madurai, Tamil Nadu, India
| | - Rishabh Kumar Rana
- Department of PSM/Community Medicine, Shaheed Nirmal Mahato Medical College, Dhanbad, Jharkhand, India
| | - S Nagendra Boopathy
- Department of Cardiology, Sri Ramachandra Institute of Higher Education & Research, Chennai, Tamil Nadu, India
| | - S Priya
- Institute of Community Medicine, Madurai Medical College, Madurai, Tamil Nadu, India
| | - Saroj Kumar Sahoo
- Department of Trauma & Emergency (Division of Cardiology), All India Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Arti Shah
- Department of Respiratory Medicine, SBKS MI&RC, Sumandeep Vidyapeeth, Pipariya, Vadodara, India
| | - Mohammad Shameem
- Department of Respiratory Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, India
| | - Karthikeyan Shanmugam
- Department of Community Medicine, PSG Institute of Medical Sciences & Research, Coimbatore, Tamil Nadu, India
| | - Sachin K Shivnitwar
- Department of Medicine, Dnyandeo Yashwantrao Patil Medical College, Pune, Maharashtra, India
| | - Abhishek Singhai
- Department of Medicine, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Saurabh Srivastava
- Department of Medicine, Government Institute of Medical Sciences, Noida, India
| | - Sudheera Sulgante
- Department of Community Medicine, Bidar Institute of Medical Sciences, Bidar, India
| | - Arunansu Talukdar
- Department of Geriatric Medicine, Medical College Kolkata, West Bengal, India
| | - Alka Verma
- Department of Emergency, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Rajaat Vohra
- Department of Community Medicine, Mahatma Gandhi Medical College & Hospital, Jaipur, Rajasthan, India
| | - Rabbanie Tariq Wani
- Department of Community Medicine, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu & Kashmir
| | | | - Gayathri Kumari
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Divya Saravana Kumar
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Aishwariya Narasimhan
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - N C Krupa
- Division of Online Courses, Chennai, Tamil Nadu, India
| | | | - Parvathi Surendran
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | | | - Alka Turuk
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Gunjan Kumar
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Aparna Murkherjee
- Clinical Studies & Trials Unit, Indian Council of Medical Research, New Delhi, India
| | - Rakesh Aggarwal
- Department of Medical Gastroenterology, Jawaharlal Institute of Post Graduate Medical Education & Research, Puducherry, India
| | - Manoj Vasant Murhekar
- Division of Epidemiology and Biostatistics, ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
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Glimm T, Kaźmierczak B, Newman SA, Bhat R. A two-galectin network establishes mesenchymal condensation phenotype in limb development. Math Biosci 2023; 365:109054. [PMID: 37544500 DOI: 10.1016/j.mbs.2023.109054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 06/09/2023] [Accepted: 07/24/2023] [Indexed: 08/08/2023]
Abstract
Previous work showed that Gal-1A and Gal-8, two proteins belonging to the galactoside-binding galectin family, are the earliest determinants of the patterning of the skeletal elements of embryonic chicken limbs, and further, that their experimentally determined interactions in the embryonic limb bud can be interpreted via a reaction-diffusion-adhesion (2GL: two galectin plus ligands) model. Here, we use an ordinary differential equation-based approach to analyze the intrinsic switching modality of the 2GL network and characterize the network behavior independent of the diffusive and adhesive arms of the patterning mechanism. We identify two states: where the concentrations of both the galectins are respectively, negligible, and very high. This bistable switch-like system arises via a saddle-node bifurcation from a monostable state. For the case of mass-action production terms, we provide an explicit Lyapunov function for the system, which shows that it has no periodic solutions. Our model therefore predicts that the galectin network may exist in low expression and high expression states separated in space or time, without any intermediate states. We test these predictions in experiments performed with high density cultures of chick limb mesenchymal cells and observe that cells inside precartilage protocondensations express Gal-1A at a much higher rate than those outside, for which it was negligible. The Gal-1A and -8-based patterning network is therefore sufficient to partition the mesenchymal cell population into two discrete cell states with different developmental (chondrogenic vs. non-chondrogenic) fates. When incorporated into an adhesion and diffusion-enabled framework this system can generate a spatially patterned limb skeleton.
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Affiliation(s)
- T Glimm
- Department of Mathematics, Western Washington University, Bellingham, WA, 98229, USA
| | - B Kaźmierczak
- Institute of Fundamental Technological Research Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - S A Newman
- Department of Cell Biology and Anatomy, New York Medical College, Valhalla, New York, NY, 10595, USA
| | - R Bhat
- Department of Developmental Biology and Genetics, Indian Institute of Science, Bangalore 560012, India; Department of Bioengineering, Indian Institute of Science, Bangalore 560012, India.
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Bhat R, Ramaswami A, Aggarwal P. Learning to switch gears - Steering palliative care into emergency medicine. Indian J Med Ethics 2023; VIII:220-223. [PMID: 36880470 DOI: 10.20529/ijme.2023.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Emergency care is largely seen as synonymous with resuscitation and saving lives. In most of the developing world where Emergency Medicine (EM) is still evolving, the concept of EM palliative care is alien. Provision of palliative care in such settings poses its own challenges in terms of knowledge gaps, socio-cultural barriers, dismal doctor-to-patient ratio with limited time for communication with patients, and lack of established pathways to provide EM palliative care. Integrating the concept of palliative medicine is crucial for expanding the dimension of holistic, value-based, quality emergency care. However, glitches in decision-making processes, especially in high patient volume settings, may lead to inequalities in care provision, based on socio-financial disparities of patients or premature termination of challenging resuscitations. Pertinent, robust, validated screening tools and guides may assist physicians in tackling this ethical dilemma.
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Affiliation(s)
- Rachana Bhat
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar New Delhi, 110 029; Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, INDIA
| | - Akshaya Ramaswami
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar New Delhi, 110 029 INDIA
| | - Praveen Aggarwal
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar New Delhi, 110 029 INDIA
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Bolumen A, Mahajan S, Bhat R, Kilaikode S. Unique case of persistent respiratory distress in a premature neonate. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00375-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Bhat R, Yadav P, Bhaskararayuni J, Neseem A, Nagesh SK, Mishra PR. Laryngeal mask airway bougie ultrasonography guided intubation in a morbidly obese patient with difficult airway. World J Emerg Med 2023; 14:241-243. [PMID: 37152529 PMCID: PMC10156533 DOI: 10.5847/wjem.j.1920-8642.2023.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 03/26/2023] [Indexed: 05/09/2023] Open
Affiliation(s)
- Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal 576104, India
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi 110029, India
- Corresponding Author: Rachana Bhat,
| | - Preeti Yadav
- Department of Anaesthesiology, All India Institute of Medical Sciences, New Delhi 110029, India
| | | | - Akhil Neseem
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Savan Kumar Nagesh
- Department of Anaesthesiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal 576104, India
| | - Prakash Ranjan Mishra
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi 110029, India
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Manzar S, Cole SR, Bhat R. Improving maternal update rates within the first hour of NICU admission. J Neonatal Perinatal Med 2023; 16:605-610. [PMID: 38007675 DOI: 10.3233/npm-230050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2023]
Abstract
BACKGROUND Timely communication is essential in attaining maternal satisfaction, developing an excellent physician-patient rapport, and increasing trust. This study reports a significant improvement in maternal communication rates through the quality improvement method. METHODS An educational module was developed, and NICU staff was presented with the slides, followed by a performance questionnaire to demonstrate understanding. The first phase was completed by obtaining feedback from mothers through a questionnaire. The first plan-do-study-act (PDSA) cycle, carried out for eight weeks looking at the rates of the maternal update provided within an hour of admission of their neonates to the NICU, was followed by the second PDSA cycle, carried out for ten weeks. The improvement was calculated using conventional statistics and a statistical process control chart. RESULTS During the first phase of the study, thirty-six percent of the mothers were updated within an hour of admission of their neonates to the NICU. During the first PDSA cycle, we did not notice a special cause variation or process change. A significant shift, eight consecutive points above the mean, was noted on the control chart during PDSA cycle 2. The mean±SD of the weekly update rate increased significantly during PDSA cycle 2 (76.8±11) compared to PDSA cycle 1 (47.5±14), p-value = 0.0002. CONCLUSION We improved the maternal update rates through the educational module following the QI improvement model using the PDSA cycles.
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Affiliation(s)
- S Manzar
- Neonatal Intensive Care Unit, Ochsner LSU Health, Shreveport, LA, USA
- Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - S R Cole
- Neonatal Intensive Care Unit, Ochsner LSU Health, Shreveport, LA, USA
| | - R Bhat
- Neonatal Intensive Care Unit, Ochsner LSU Health, Shreveport, LA, USA
- Louisiana State University Health Sciences Center, Shreveport, LA, USA
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Balakrishnan JM, Sirur FM, Prakash N, Bhat R, Wilson W, Angadi B, Asanar S. Portable Biosafety Barrier Innovations to Limit Transmissibility of Infectious Diseases during Patient Care in Resource-limited Settings during the COVID-19 Pandemic. Indian J Crit Care Med 2022; 26:1036-1038. [PMID: 36213704 PMCID: PMC9492750 DOI: 10.5005/jp-journals-10071-24307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 08/29/2020] [Indexed: 01/25/2023] Open
Abstract
Background The coronavirus disease-2019 (COVID-19) pandemic has brought about a change in healthcare practices that are likely to persist into the foreseeable future. In particular, is the exposure risk to the healthcare practitioners in the emergency department (ED) and the intensive care units. Mitigating this issue in a low-resource setting remains challenging, and in particular, in developing nations such as India, where ED patient flows can overwhelm a system and its human resources, breaking down processes and infecting healthcare workers (HCWs). Technique To tackle this and the possible lack of appropriate personal protective equipment (PPE), we designed and built biosafety barrier devices using local resources for use in patient stabilization, transport, and continued care in the ED or the intensive care units. Results Four biosafety devices bio-safe levels 1 and 2, ultra-ductile portable interface of interventions in infections, and tented transport trolley for transmissibility (4T) were tested for the feasibility of usage for patient care during the pandemic with simulation. Conclusion We anticipate that with time it may be common practice for in situ isolation of patients in the emergency departments with a suspicion of an infectious disease. With the proof of concept, simulation, hospital infection control committee (HICC) approval, and trial run, we look to close the gaps that exist in these initial innovations. How to cite this article Balakrishnan JM, Sirur FM, Prakash N, Bhat R, Wilson W, Angadi B, et al. Portable Biosafety Barrier Innovations to Limit Transmissibility of Infectious Diseases during Patient Care in Resource-limited Settings during the COVID-19 Pandemic. Indian J Crit Care Med 2022;26(9):1036–1038.
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Affiliation(s)
- Jayaraj Mymbilly Balakrishnan
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Freston Marc Sirur
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
- Freston Marc Sirur, Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India, Phone: +91 9604200840, e-mail:
| | - Nayan Prakash
- Department of Biomedical Engineering, Manipal Institute of Technology, Manipal, Karnataka, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - William Wilson
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Bharath Angadi
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sanjan Asanar
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
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Weber SF, Ruby LC, Heller T, Hande M, Shastry BA, Acharya RV, Bhat R, Shankar S, Prabhu M, Mohapatra AK, Magazine R, Kadavigere R, Denkinger CM, Gehring S, Bélard S, Saravu K. TB disease patterns by HIV and diabetes status. Int J Tuberc Lung Dis 2022; 26:733-740. [PMID: 35898145 DOI: 10.5588/ijtld.21.0693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: TB is commonly categorised as pulmonary (PTB) or extrapulmonary TB (EPTB). Knowledge of TB disease patterns (PTB and/or EPTB) and determining risk factors remains limited.METHODS: This was a prospective cohort study using point-of-care ultrasound (POCUS) in Indian patients with presumed TB. Clinical and imaging data were used to develop refined case definitions for PTB, concurrent PTB and EPTB (PTB + EPTB) and EPTB without PTB (EPTB). These groups were analysed by HIV (HIV+/-) and diabetes mellitus (DM+/-) status.RESULTS: Of 172 HIV-/DM- patients with TB, 48% had PTB, 23% PTB + EPTB and 29% had EPTB, totalling 52% with any EPTB (PTB + EPTB or EPTB). In HIV+/DM- patients with TB (n = 35), 6% had PTB, 40% had PTB + EPTB and 54% had EPTB, accounting for 94% with EPTB. In HIV-/DM+ patients with TB (n = 61), 61% had PTB, 28% had PTB + EPTB and 11% had EPTB, representing 39% with EPTB.CONCLUSION: Refined case definitions revealed high proportions of EPTB even without HIV or DM. HIV further altered the TB disease pattern towards EPTB and DM towards PTB. Therefore, the dichotomy between PTB or EPTB does not represent the actual spectrum of TB disease. EPTB should receive higher priority in research and clinical practice.
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Affiliation(s)
- S F Weber
- University Hospital Heidelberg, Division for Infectious Diseases and Tropical Medicine, Heidelberg, Germany
| | - L C Ruby
- Department of Paediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - T Heller
- Lighthouse Clinic Lilongwe, Kamuzu Central Hospital, Mzimba, Lilongwe, Malawi
| | - M Hande
- Department of Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - B A Shastry
- Department of Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - R V Acharya
- Department of Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - R Bhat
- Department of Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - S Shankar
- Department of Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - M Prabhu
- Department of Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - A K Mohapatra
- Department of Pulmonary Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - R Magazine
- Department of Pulmonary Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - R Kadavigere
- Department of Radiodiagnosis, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - C M Denkinger
- University Hospital Heidelberg, Division for Infectious Diseases and Tropical Medicine, Heidelberg, Germany, German Center of Infection Research, Partner Site Heidelberg University Hospital, Heidelberg, Germany
| | - S Gehring
- University Clinics Mainz, Department of Paediatrics, Mainz, Germany
| | - S Bélard
- Institute of Tropical Medicine, University of Tübingen, Tübingen, Germany, German Center for Infection Research (DZIF), Partner Site Tübingen, Tübingen, Germany
| | - K Saravu
- Department of Infectious Diseases, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India, Manipal Center for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, India
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Aziz IM, Bhat R, Farrag MA, Almajhdi FN. ONCOLYTIC ACTIVITY OF HUMAN ORTHOPNEUMOVIRUS IN CANCER CELL LINES. Exp Oncol 2022; 44:113-120. [PMID: 35964639 DOI: 10.32471/exp-oncology.2312-8852.vol-44-no-2.18084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
UNLABELLED Oncolytic virotherapy is an emerging biotherapeutic platform for selectively infecting cancer cells and triggering apoptosis in a number of malignant cells due to robust viral replication. Studies related to the oncolytic activity of human orthopneumovirus (hOPV) are conflicting. AIM This study was designed to elucidate the possible role of hOPV in the modulation of cell growth and apoptosis in cancer cell lines including human epidermoid carcinoma (HEp-2), lung epithelial cell line (A549), and breast cancer cell line (MCF-7). MATERIALS AND METHODS The oncolytic activity of hOPV on cancer cells was studied in vitro. The virus titers were determined by tissue culture infectious dose (TCID50/mL) in A549 cell. The cytotoxic effect of the virus on HEp-2, A549, and MCF-7 was determined using MTT and trypan blue dye exclusion test assays. hOPV in the infected cells was detected using real-time reverse transcription polymerase chain reaction (rRT-PCR) and indirect immunofluorescence (IIF) assays. The relative expression of apoptosis-related genes (CASP-3, -8, -9, Bax, Bcl-2, Bcl-XL, TP53, P21) during virus infection was estimated using rRT-PCR assay in comparison with the house-keeping gene (GAPDH). RESULTS hOPV infection inhibited the growth of HEp-2, A549, and MCF-7 cells in a dose-and time-dependent manner. At a multiplicity of infection (MOI) of 5, hOPV reduced the viability of A549 cells to about 16%, HEp-2 to 22%, and MCF-7 to 28% (p = 0.001), while no significant inhibitory effect was observed when cells were infected at MOI of 1 and 2. hOPV mRNA and antigens were detected in infected HEp-2, A549, and MCF-7 cells by RT-PCR and IIF. Upon hOPV infection, expression of CASP-3, -8, -9, as well as Bax, TP53, and p21 mRNA increased while expression of Bcl-2, Bcl-xL anti-apoptotic genes decreased. In hOPV-infected A549 cells, the fold increase of CASP-8 and CASP-9, Bax, TP53, and P21 expression exceeded significantly compared to that in HEp-2 or MCF-7 cells. CONCLUSIONS Our results provide evidence that hOPV could be a potential candidate for oncolytic virotherapy.
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Affiliation(s)
- I M Aziz
- College of Science, Alfaisal University, Riyadh 11533, Saudi Arabia.
| | - R Bhat
- College of Science, Alfaisal University, Riyadh 11533, Saudi Arabia.
| | - M A Farrag
- College of Science, Alfaisal University, Riyadh 11533, Saudi Arabia.
| | - F N Almajhdi
- College of Science, Alfaisal University, Riyadh 11533, Saudi Arabia.
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15
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Bauman M, Hellinger A, Pluym CV, Bhat R, Simpson E, Mehegan M, Knox P, Massicotte M. Online KidClot education for patients and families initiating warfarin therapy: The eKITE study. Thromb Res 2022; 215:14-18. [PMID: 35594736 PMCID: PMC9755220 DOI: 10.1016/j.thromres.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/22/2022] [Accepted: 05/03/2022] [Indexed: 01/12/2023]
Abstract
Anticoagulation with Vitamin K antagonists (VKA) has always posed challenges in terms of monitoring requirements. These challenges were further exacerbated in the setting of the COVID-19 pandemic, with limited access to and/or avoidance of laboratory testing. The importance of utilizing point of care (POC) health technology for individualized patient management is salient. The foundation of effective home INR monitoring is establishing patient knowledge about their therapy and INR testing proficiency. The eKITE series was developed to support patients in establishing foundational knowledge required for VKA (warfarin) management and INR monitoring. The primary objectives were to evaluate eKITE, a patient-oriented innovative online education program for warfarin therapy, participant learning stress, and patient preference for online learning. This multi-center prospective study provided patients access to warfarin online education. Participants were required to complete written quizzes assessing warfarin knowledge of key concepts proficiency and identifying knowledge deficits. Patient preference, evaluating calm (lack of anxiety) while learning, and an INR on a home meter was completed. Participants performed INR tests at home and reported INRs by telephone. The analysis included 144 children and caregivers enrolled at five US and CDN sites. Most indications for anticoagulation were cardiac (congenital or acquired heart disease) with varied INR target ranges. Mean knowledge scores for warfarin and INR self-testing modules were 97%, with low anxiety with TTR of 84%. Patient preferred online learning. eKITE is an effective teaching modality for warfarin/home INR monitoring with safe INR testing and warfarin management that is appropriate for pediatrics and adults alike. PROLOGUE: The whir in the hallways is deafening. Lights bright, alarms are ringing in a chorus of unsynchronized beeps and screeches. It has been more than a week since I have slept. Snuggled beside me is my precious child, whining and equally irritated with the asynchronous symphony, further compounded by anxiety, procedures, and pain. The sun has broken. The staff smiles are welcoming and incessant, as one after one, they approach hurried, urgent, assiduous, their need to coach me for our upcoming departure to the warmth of home. Each provides essential information that I will require to keep my child, my treasure, safe and healthy. Yet, my eyes are heavy, blurred, and my brain foggy, trapped in a dark heavy cloud. How am I to follow? Comprehend? and retain anything? As they instruct, my precious child yearns for loving arms, compassion and love, whining, crying in disquiet. Overwhelmed does not adequately describe my ineffable exhaustion. Amidst this, how am I to learn about warfarin? Such a challenging medication, with so much to know. Concentrate, I tell myself, focus; now is my only opportunity to learn. I must be alert. It seems to be nonsensical.
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Affiliation(s)
- M.E. Bauman
- Stollery Children's Hospital, University of Alberta, Edmonton, AB, Canada,Corresponding author at: KidClot Pediatric Thrombosis Program, University of Alberta, Stollery Children's Hospital, 3-585 ECHA, 11405-87 Ave NW, Edmonton, Alberta T6G 1C9, Canada
| | | | | | - R. Bhat
- Division of Hematology/Oncology/Stem Cell Transplant, Lurie Children's Hospital of Chicago, Northwestern University, Chicago, IL, USA
| | - E. Simpson
- Children's Hospital of Eastern Ontario, ON, Canada
| | | | - P. Knox
- Alberta Children's Hospital, Canada
| | - M.P. Massicotte
- Stollery Children's Hospital, University of Alberta, Edmonton, AB, Canada
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16
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Gupta N, Wilson W, Ravindra P, Joylin S, Bhat R, Saravu K. Clinical profile, management and outcome of patients with leptospirosis during the times of COVID-19 pandemic: A prospective study from a tertiary care centre in South India. Infez Med 2022; 29:393-401. [PMID: 35146344 DOI: 10.53854/liim-2903-10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/28/2021] [Indexed: 12/26/2022]
Abstract
Leptospirosis is a rodent-borne acute febrile illness, classically seen after heavy rainfall and floods. This study aimed to describe the clinical profile, management strategies and outcome of patients with leptospirosis amidst the Coronavirus disease-2019 outbreak. A prospective study of adult patients with undifferentiated fever (5-15 days) was conducted in South India between October 2020 and February 2021. The demographic, clinical details, laboratory details, treatment and outcome of leptospirosis positive (based on serology) and negative patients were compared. A chisquare test was used for qualitative variables, while an independent t-test or Mann Whitney U test was used for continuous variables. Of the 206 patients with suspected acute febrile illness, a total of 63 patients were diagnosed with leptospirosis based on serology results. The median sequential organ failure assessment score was higher in those with leptospirosis (p<0.001). Myalgia, abdominal pain, jaundice, decreased urine output, myocarditis, and dialysis requirement were more common in patients with leptospirosis. Leucocytosis and raised procalcitonin/C-reactive protein were more common in patients with leptospirosis. The duration of stay and antibiotic consumption was higher in patients with leptospirosis. Acute febrile illness such as leptospirosis should be suspected in tropical areas with significant risk factors. The presence of conjunctival suffusion, hepatic and renal dysfunction should warrant a serology test for leptospirosis.
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Affiliation(s)
- Nitin Gupta
- Department of Infectious Diseases, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India.,Manipal Center for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - William Wilson
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Prithvishree Ravindra
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sowmya Joylin
- Department of Infectious Diseases, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Kavitha Saravu
- Department of Infectious Diseases, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India.,Manipal Center for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka, India
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17
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Mathew R, Mohindra R, Sahu A, Bhat R, Ramaswami A, Aggarwal P. Occupational Sharp Injury and Splash Exposure among Healthcare Workers in a Tertiary Hospital. J Lab Physicians 2022; 13:323-327. [PMID: 34975250 PMCID: PMC8714307 DOI: 10.1055/s-0041-1731135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background
Occupational hazards like sharp injury and splash exposure (SISE) are frequently encountered in health-care settings. The adoption of standard precautions by healthcare workers (HCWs) has led to significant reduction in the incidence of such injuries, still SISE continues to pose a serious threat to certain groups of HCWs.
Materials and Methods
This was a retrospective study which examined the available records of all patients from January 2015 to August 2019 who self-reported to our emergency department with history of sharp injury and/or splash exposure. Details of the patients, mechanism of injury, the circumstances leading to the injury, status of the source (hepatitis B surface antigen, human immunodeficiency virus, and hepatitis C virus antibody status), and the postexposure prophylaxis given were recorded and analyzed. Data were represented in frequency and percentages.
Results
During the defined period, a total of 834 HCWs reported with SISE, out of which 44.6% were doctors. Majority of the patients have SISE while performing medical procedures on patients (49.5%), while 19.2% were exposed during segregation of waste. The frequency of needle stick injury during cannulation, sampling, and recapping of needle were higher in emergency department than in wards. More than 80% of HCWs received hepatitis B vaccine and immunoglobulin postexposure.
Conclusion
There is need for periodical briefings on practices of sharp handling as well as re-emphasizing the use of personal protective equipment while performing procedures.
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Affiliation(s)
- Roshan Mathew
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Ritin Mohindra
- Department of Internal Medicine, Postgraduate Institute of Medical Research, Chandigarh, India
| | - Ankit Sahu
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal, India
| | - Akshaya Ramaswami
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Praveen Aggarwal
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India
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18
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Ravindra P, Bhat R, Karanth N, Wilson W, Lavanya BN, Umra S, Mahesh S. Patterns and Predictors of Emergency Medical Services Utilisation by Patients Attending the Emergency Medicine Department of a Tertiary Care Hospital in India. J Emerg Trauma Shock 2022; 15:99-104. [PMID: 35910313 PMCID: PMC9336641 DOI: 10.4103/jets.jets_83_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 10/11/2021] [Accepted: 02/18/2022] [Indexed: 11/17/2022] Open
Abstract
Introduction Establishment of strong emergency medical services (EMS) systems plays a pivotal role in reducing morbidity and mortality, especially in low and middle-income countries. We aimed to study the EMS utilization and resources available in the ambulances to deliver prehospital care among patients presenting to the Emergency Medicine Department in a tertiary care hospital in south India. Methods Data regarding prehospital transport practices such as mode of arrival, utilization of EMS, resources available in the ambulance, presenting complaints, triage category, and demographic details were collected and analyzed. Subgroup analysis for time-sensitive complaints was done. Variables were subjected to univariate and multivariate analysis to find the predictors of ambulance usage. Results The study included 3935 patients. The most common time-sensitive complaints were trauma (17%) and chest pain (11.5%). The most preferred mode of transport was the personal vehicle (45.6%). 29.8% of patients arrived in the ambulance. 97.7% of ambulances were not Advanced Cardiac Life Support equipped and 87.1% did not have an accompanying health care provider. 64.5% inter-hospital patient transfers were through ambulance, 83.8% transfers were unaccompanied. Among patients with time-sensitive complaints, EMS utilization was inadequate (46.8% in acute coronary syndrome, 34% in trauma, and 56.5% in early acute ischemic stroke). Conclusion There was underutilization of the EMS services. Majority of the ambulances were not adequately equipped/staffed to deliver prehospital interventions. Policies at national level are required to encourage EMS utilization by the public and urgent measures are needed to improve services provided by them.
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Affiliation(s)
- Prithvishree Ravindra
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Nisarg Karanth
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - William Wilson
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India,Address for correspondence: Dr. William Wilson, Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal - 576 104, Karnataka, India. E-mail:
| | - B. N. Lavanya
- Department of Emergency Medical Technology, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Simran Umra
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Shweta Mahesh
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
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19
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Kumar A, Mathew R, Bhaskararayuni J, Rai R, Imran M, Roshan PK, Akpza J, Bhat R, Sahu A, Jamshed N, Aggarwal P, Ekka M, Ranjan P. Clinical characteristics and outcome of patients presenting to emergency department during the second wave of COVID-19. J Family Med Prim Care 2022; 11:2723-2728. [PMID: 36119218 PMCID: PMC9480745 DOI: 10.4103/jfmpc.jfmpc_1726_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 01/01/2022] [Accepted: 01/05/2022] [Indexed: 11/04/2022] Open
Abstract
Background: Methods: Results: Conclusion:
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20
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Sahu AK, Mathew R, Bhat R, Malhotra C, Nayer J, Aggarwal P, Galwankar S. Steroids use in non-oxygen requiring COVID-19 patients: a systematic review and meta-analysis. QJM 2021; 114:455-463. [PMID: 34347106 DOI: 10.1093/qjmed/hcab212] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/27/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Corticosteroids have become the mainstay treatment in severe COVID-19. However, its role is mild disease is controversial due to lack of robust scientific evidence. This systematic review and meta-analysis were conducted to assess effect of steroids in mild COVID-19 patients. METHODS PubMed, EMBASE, Web of Science and medRxiv were searched from 31 December 2019 to 14 May 2021 for studies that reported effectiveness of steroids in non-oxygen requiring COVID-19 patients in terms of progressing to severe disease, mortality, duration of fever, duration of viral clearance and length of hospital stay (LOHS). Studies on inhalational steroids, case reports and reviews were excluded. Risk of bias (ROB) was assessed by the Cochrane's ROB tool and ROBANS tool. Quantitative data synthesis was done using the generic inverse variance method. RESULTS A total of 6411 studies were identified, 2990 articles were screened after exclusion. Seven studies which fit the criteria (involving 2214 non-oxygen requiring COVID-19 patients) were included and analysed. Overall odds of progression to severe disease among the non-oxygen requiring COVID-19 patients receiving steroids was 5.97 [95% confidence interval (CI): 1.27-27.99, I2 = 0%] and odds of death (OR: 1.35, 95% CI: 1.01-1.79; I2 = 0%) as compared to the patients not receiving steroids. Mean duration of fever (7.4 days), duration to viral clearance (18.9 days) and LOHS (20.8 days) were significantly higher in the steroid arm, as compared to that in no-steroid arm (6.7, 16.5 and 15.2 days, respectively). CONCLUSION Steroids in non-oxygen requiring COVID-19 patients can be more detrimental than beneficial. PROTOCOL REGISTRATION The study was prospectively registered in PROSPERO (CRD 42021254951).
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Affiliation(s)
- A K Sahu
- From the Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110049, India
| | - R Mathew
- From the Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110049, India
| | - R Bhat
- From the Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110049, India
| | - C Malhotra
- From the Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110049, India
| | - J Nayer
- From the Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110049, India
| | - P Aggarwal
- From the Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110049, India
| | - S Galwankar
- Department of Emergency Medicine, Sarasota Memorial Hospital, Florida State University, Florida 34230, USA
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21
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Ramaswami A, Sahu AK, Kumar A, Suresh S, Nair A, Gupta D, Chouhan R, Bhat R, Mathew R, Majeed JA, Aggarwal P, Nayer J, Ekka M, Thakar A, Singh G, Xess I, Wig N. COVID-19-associated mucormycosis presenting to the Emergency Department-an observational study of 70 patients. QJM 2021; 114:464-470. [PMID: 34254132 PMCID: PMC8420631 DOI: 10.1093/qjmed/hcab190] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Mucormycosis (MM) is a deadly opportunistic fungal infection and a large surge in COVID-19-associated mucormycosis (CAM) is occurring in India. AIM Our aim was to delineate the clinico-epidemiological profile and identify risk factors of CAM patients presenting to the Emergency Department (ED). DESIGN This was a retrospective, single-centre, observational study. METHODS We included patients who presented with clinical features or diagnosed MM and who were previously treated for COVID-19 in last 3 months of presentation (recent COVID-19) or currently being treated for COVID-19 (active COVID-19). Information regarding clinical features of CAM, possible risk factors, examination findings, diagnostic workup including imaging and treatment details were collected. RESULTS Seventy CAM patients (median age: 44.5 years, 60% males) with active (75.7%) or recent COVID-19 (24.3%) who presented to the ED in between 6 May 2021 and 1 June 2021, were included. A median duration of 20 days (interquartile range: 13.5-25) was present between the onset of COVID-19 symptoms and the onset of CAM symptoms. Ninety-three percent patients had at least one risk factor. Most common risk factors were diabetes mellitus (70%) and steroid use for COVID-19 disease (70%). After clinical, microbiological and radiological workup, final diagnosis of rhino-orbital CAM was made in most patients (68.6%). Systemic antifungals were started in the ED and urgent surgical debridement was planned. CONCLUSION COVID-19 infection along with its medical management have increased patient susceptibility to MM.
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Affiliation(s)
- A Ramaswami
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - A K Sahu
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - A Kumar
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - S Suresh
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - A Nair
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - D Gupta
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - R Chouhan
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - R Bhat
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - R Mathew
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - J A Majeed
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - P Aggarwal
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - J Nayer
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - M Ekka
- Department of Emergency Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - A Thakar
- Department of Otorhinolaryngology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - G Singh
- Department of Microbiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - I Xess
- Department of Microbiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
| | - N Wig
- Department of Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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22
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Bhat R, Ravindra P, Sahu AK, Mathew R, Wilson W. Study of pre-hospital care of out of hospital cardiac arrest victims and their outcome in a tertiary care hospital in India. Indian Heart J 2021; 73:446-450. [PMID: 34474756 PMCID: PMC8424282 DOI: 10.1016/j.ihj.2021.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 01/20/2021] [Accepted: 02/13/2021] [Indexed: 11/20/2022] Open
Abstract
Background India does not have a formal cardiac arrest registry or a centralized emergency medical system. In this study, we aimed to assess the prehospital care received by the patients with OHCA and predict the factors that could influence their outcome. Methods Out-of-hospital cardiac arrest patients presenting to the emergency department in a tertiary care centre were included in the study. Prehospital care was assessed in terms of bystander cardiopulmonary resuscitation (CPR), mode of transport, resuscitation in ambulance. OHCA outcomes like Return of spontaneous circulation (ROSC), survival to hospital discharge and favourable neurological outcome at discharge were assessed. Results Among 205 patients, the majority were male (71.2%) and were above 60 years of age (49.3%); Predominantly non-traumatic (82.4%). 30.7% of the patients had sustained cardiac arrest in transit to the hospital. 41.5% of patients reached hospital by means other than ambulance. Only 9.8% patients had received bystander CPR. Only 12.5% ambulances had BLS trained personnel. AED was used only in 1% of patients. The initial rhythm at presentation to the hospital was non-shockable (96.5%). Return of spontaneous circulation (ROSC) was achieved in 17 (8.3%) patients, of which only 3 (1.4%) patients survived till discharge. The initial shockable rhythm was a significant predictor of ROSC (OR 18.97 95%CI 3.83–93.89; p < 0.001) and survival to discharge (OR 42.67; 95%CI 7.69–234.32; p < 0.001). Conclusion The outcome of OHCA in India is dismal. The pre-hospital care received by the OHCA victim needs attention. Low by-stander CPR rate, under-utilised and under-equipped EMS system are the challenges.
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Affiliation(s)
- Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India.
| | - Prithvishree Ravindra
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India.
| | - Ankit Kumar Sahu
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India.
| | - Roshan Mathew
- Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India.
| | - William Wilson
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India.
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23
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Bradley NA, Orawiec P, Bhat R, Pal S, Suttie SA, Flett MM, Guthrie GJK. Mid-term follow-up of percutaneous access for standard and complex EVAR using the ProGlide device. Surgeon 2021; 20:142-150. [PMID: 33958298 DOI: 10.1016/j.surge.2021.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/11/2021] [Accepted: 03/22/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Endovascular Aneurysm Repair is an established treatment for abdominal aortic aneurysm which requires arterial access via the groin. Most centres perform percutaneous ultrasound-guided access into the common femoral artery for delivery of the stent graft. The profile of endovascular devices necessitates large sheath sizes, therefore formal closure of the arterial puncture site is required. Various percutaneous devices are available, with data lacking on efficacy and mid-term safety profile. We present outcomes from a single centre with the Perclose ProGlide™ (Abbott Vascular Devices, CA, USA) suture-mediated system, using the well described "pre-close" technique. MATERIALS & METHODS Data were collected from operative records and electronic medical records. Patients undergoing standard (EVAR) or complex (F/B-EVAR) aneurysm repair between March 2015 and September 2019 were included. Complications were recorded per-patient and per-groin procedure. RESULTS 266 patients were included; 182 (68.4%) standard infrarenal EVAR, 84 (31.6%) F/B-EVAR. There were a total of 484 groin procedures performed. Intraoperative Perclose ProGlide™ success was 98.1% (per patient) or 99.0% (per groin procedure). 30-day groin complication rate was 6.1% (per patient) or 3.1% (per groin procedure). There were no pre- or peri-operative factors which predicted the occurrence of groin complications. The rate of groin complications was not related to sheath size. CONCLUSIONS Our data support the use of percutaneous access with a pre-close technique for a variety of endovascular aneurysm repair procedures with both large- and small-bore access. The Perclose ProGlide™ system provides excellent mid-term complication-free and reintervention-free outcomes for groin procedures.
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Affiliation(s)
- N A Bradley
- Department of Vascular Surgery, Ninewells Hospital, Dundee, UK.
| | - P Orawiec
- Department of Vascular Surgery, Ninewells Hospital, Dundee, UK
| | - R Bhat
- Department of Interventional Radiology, Ninewells Hospital, Dundee, UK
| | - S Pal
- Department of Interventional Radiology, Ninewells Hospital, Dundee, UK
| | - S A Suttie
- Department of Vascular Surgery, Ninewells Hospital, Dundee, UK
| | - M M Flett
- Department of Vascular Surgery, Ninewells Hospital, Dundee, UK
| | - G J K Guthrie
- Department of Vascular Surgery, Ninewells Hospital, Dundee, UK
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Pramanik D, Jolly MK, Bhat R. Matrix adhesion and remodeling diversifies modes of cancer invasion across spatial scales. J Theor Biol 2021; 524:110733. [PMID: 33933478 DOI: 10.1016/j.jtbi.2021.110733] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 12/14/2022]
Abstract
The metastasis of malignant epithelial tumors begins with the egress of transformed cells from the confines of their basement membrane (BM) to their surrounding collagen-rich stroma. Invasion can be morphologically diverse: when breast cancer cells are separately cultured within BM-like matrix, collagen I (Coll I), or a combination of both, they exhibit collective-, dispersed mesenchymal-, and a mixed collective-dispersed (multimodal)- invasion, respectively. In this paper, we asked how distinct these invasive modes are with respect to the cellular and microenvironmental cues that drive them. A rigorous computational exploration of invasion was performed within an experimentally motivated Cellular Potts-based modeling environment. The model comprised of adhesive interactions between cancer cells, BM- and Coll I-like extracellular matrix (ECM), and reaction-diffusion-based remodeling of ECM. The model outputs were parameters cognate to dispersed- and collective- invasion. A clustering analysis of the output distribution curated through a careful examination of subsumed phenotypes suggested at least four distinct invasive states: dispersed, papillary-collective, bulk-collective, and multimodal, in addition to an indolent/non-invasive state. Mapping input values to specific output clusters suggested that each of these invasive states are specified by distinct input signatures of proliferation, adhesion and ECM remodeling. In addition, specific input perturbations allowed transitions between the clusters and revealed the variation in the robustness between the invasive states. Our systems-level approach proffers quantitative insights into how the diversity in ECM microenvironments may steer invasion into diverse phenotypic modes during early dissemination of breast cancer and contributes to tumor heterogeneity.
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Affiliation(s)
- D Pramanik
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India; Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India.
| | - M K Jolly
- Centre for BioSystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India.
| | - R Bhat
- Department of Molecular Reproduction, Development and Genetics, Indian Institute of Science, Bangalore 560012, India.
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Gupta N, Joylin S, Ravindra P, Wilson W, Bhat R, Guddattu V, Neumayr A, Mukhopadhyay C, Saravu K. A diagnostic randomised controlled trial to study the impact of rapid diagnostic tests in patients with Acute febrile illness when compared to conventional diagnostics (DRACO study). J Infect 2021; 82:e6-e8. [PMID: 33838159 DOI: 10.1016/j.jinf.2021.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 04/02/2021] [Indexed: 12/12/2022]
Affiliation(s)
- Nitin Gupta
- Department of Infectious Diseases, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India; Manipal Center for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India.
| | - Sowmya Joylin
- Department of Infectious Diseases, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Prithvishree Ravindra
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - William Wilson
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Vasudev Guddattu
- Department of Statistics, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Andreas Neumayr
- University of Basel, Basel, Switzerland; Department of Public Health and Tropical Medicine, College of Public Health, Medical and Veterinary Sciences, James Cook University, Queensland, Australia
| | - Chiranjay Mukhopadhyay
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India, 576104
| | - Kavitha Saravu
- Department of Infectious Diseases, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India; Manipal Center for Infectious Diseases, Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
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26
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Bhat R. Disease risk estimation and cluster detection of the Kyasanur Forest Disease in the Western Ghats, India. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Balakrishnan JM, Kunju SA, Wilson W, Sujir SN, Bhat R, Vandana KE. MIST (Modified Intubating Sequence for Transmissibility) Bundle for Infectious Diseases with Aerosol Hazard. West J Emerg Med 2020; 21:1076-1079. [PMID: 32970557 PMCID: PMC7514411 DOI: 10.5811/westjem.2020.7.47473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 07/15/2020] [Indexed: 01/28/2023] Open
Abstract
The current global severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic has magnified the risk to healthcare providers when inititiating airway management, and safe tracheal intubation has become of paramount importance. Mitigation of risk to frontline providers requires airway management to be an orchestrated exercise based on training and purposeful simulation. Role allocation and closed-loop communication form the foundation of this exercise. We describe a methodical, 10-step approach from decision-making and meticulous drug and equipment choices to donning of personal protective equipment, and procedural concerns. This bundled approach will help reduce unplanned actions, which in turn may reduce the risk of aerosol transmission during airway management in resource-limited settings.
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Affiliation(s)
- Jayaraj M Balakrishnan
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sanjan Asanaru Kunju
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - William Wilson
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Sachin Nayak Sujir
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Rachana Bhat
- Department of Emergency Medicine, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - K E Vandana
- Department of Microbiology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
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Goonasekera CD, Skelton VA, Zebian B, Nicolaides K, Araujo Lapa D, Santorum-Perez M, Bleil C, Hickey A, Bhat R, Oliva Gatto BE. Peri-operative management of percutaneous fetoscopic spina-bifida repair: a descriptive review of five cases from the United Kingdom, with focus on anaesthetic implications. Int J Obstet Anesth 2020; 43:97-105. [PMID: 32386991 DOI: 10.1016/j.ijoa.2020.04.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 03/15/2020] [Accepted: 04/13/2020] [Indexed: 11/16/2022]
Abstract
We present a case-based review of the first five percutaneous fetoscopic in-utero spina bifida repair procedures undertaken in the UK. Our focus is on implications of anaesthesia and analgesia for the mother and fetus, provision of uterine relaxation and fetal immobilisation while providing conditions conducive to surgical access. Minimising risks for fetal acidosis, placental and fetal hypoperfusion, maternal and fetal sepsis and maternal fluid overload were the foremost priorities. We discuss optimisation strategies undertaken to ensure fetal and maternal well-being under anaesthesia, shortcomings in the current approach, and possible directions for improvement.
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Affiliation(s)
- C D Goonasekera
- Department of Anaesthesia, King's College Hospital, London, UK.
| | - V A Skelton
- Department of Anaesthesia, King's College Hospital, London, UK
| | - B Zebian
- Department of Neurosurgery, King's College Hospital, London, UK
| | - K Nicolaides
- Fetal Medicine Research Institute, King's College Hospital, London, UK
| | - D Araujo Lapa
- Department of Obstetrics and Fetal Medicine, Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | - M Santorum-Perez
- Department of Obstetrics and Fetal Medicine, Fetal Medicine Research Institute, King's College Hospital, London, UK
| | - C Bleil
- Department of Neurosurgery, King's College Hospital, London, UK
| | - A Hickey
- Department of Neonatology, King's College Hospital, London, UK
| | - R Bhat
- Department of Neonatology, King's College Hospital, London, UK
| | - B E Oliva Gatto
- Department of Anaesthesia, Hospital Israelita Albert Einstein, Sao Paulo, Brazil
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29
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Simões R, Miles E, Yang H, Le Grange F, Bhat R, Forsyth S, Seddon B. IMRiS phase II study of IMRT in limb sarcomas: Results of the pre-trial QA facility questionnaire and workshop. Radiography (Lond) 2020; 26:71-75. [PMID: 31902458 DOI: 10.1016/j.radi.2019.08.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 08/21/2019] [Accepted: 08/28/2019] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Soft tissue sarcomas of the extremities (STSE) are rare malignancies. We report current UK practice for immobilisation of soft tissue sarcoma of STSE, as part of the initial study set-up within the IMRiS trial, a phase II study of intensity modulated radiotherapy (IMRT) in primary bone and soft tissue sarcoma. METHODS A facility questionnaire (FQ) was circulated to 29 IMRiS centres investigating the variation in immobilisation devices, planning techniques, and imaging protocols. A workshop was held to address concerns raised by centres. It focused on STSE immobilisation and patient set-up. Robustness of patient set-up at each centre was evaluated based on the following criteria: evidence of local set-up audit, calculation of margins based on set-up audit results, imaging frequency, and number of patients treated per centre per annum. RESULTS Twenty-seven (93%) questionnaires were returned. 30% (8/27) of responders routinely treated STSE with IMRT. The remaining 70% (19/27) had little or no experience with IMRT for STSE. Vacuum bags were the most frequent immobilisation device (9/27), followed by thermoplastic shells (7/27). Nine centres had audited their local set-up; however, only 4 had calculated margins in response to the results. Ten centres were classified as having high level of robustness. CONCLUSIONS Immobilisation devices and planning techniques for STSE are inconsistent across centres. Robustness of set-up is an important tool to ensure quality of results in a multicentre trial setting with such different levels of experience. The IMRiS trial Quality Assurance programme encourages centres to assess robustness of set-up through local audit and subsequent calculation of treatment margins. IMPLICATIONS FOR PRACTICE This is the first study that used robustness criteria to tailor QA support to individual centres.
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Affiliation(s)
- R Simões
- National Radiotherapy Trials Quality Assurance Group, Mount Vernon Hospital, London, UK.
| | - E Miles
- National Radiotherapy Trials Quality Assurance Group, Mount Vernon Hospital, London, UK
| | - H Yang
- National Radiotherapy Trials Quality Assurance Group, Mount Vernon Hospital, London, UK
| | - F Le Grange
- University College of London Hospital, London, UK
| | - R Bhat
- Cancer Research UK & UCL Cancer Trials Centre, London, UK
| | - S Forsyth
- Cancer Research UK & UCL Cancer Trials Centre, London, UK
| | - B Seddon
- University College of London Hospital, London, UK
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30
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Bhat R, Vidyasagar D, Fisher E, Hastreiter A, Ramirez J, Burns L, Evans M. Pharmacokinetics of Oral and Intravenous Indomethacin in
Preterm Infants. ACTA ACUST UNITED AC 2019. [DOI: 10.1159/000455528] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Bhat R, Qin L, De Angelis C, Sahay D, Bhargava D, Creighton C, Yadav P, Yazdanfard S, Alrawi A, Yadav V, Vasaikar S, Nanda S, Sethunath V, Fu X, Zhang B, Narkar V, Schiff R, Trivedi M. Abstract P6-20-10: Role of GPR110 in breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-20-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Our long-term goal is to discover adhesion GPCR targets in breast cancer. Our previous studies have found GPR110 to be overexpressed in tumorigenic cell population as well as in anti-HER2 drug-resistant derivatives of HER2+ breast cancer cells. In subsequent studies, we found that GPR110 knockdown inhibited anchorage-independent cell growth, mammosphere formation, and invasion/migration of HER2+ breast cancer cells. Conversely, overexpression of GPR110 by lentiviral delivery of cDNA enhanced anchorage-independent cell growth, mammosphere formation, and invasion/migration in HER2+ breast cancer cells. In addition, GPR110 overexpression led to increase in the % of Aldefluor-positive tumorigenic cell population, further emphasizing the role of GPR110 as a mediator of tumorigenesis in addition to the metastatic processes in HER2+ breast cancer. Among various subtypes of breast cancer, GPR110 expression was higher in HER2+ and basal subtypes, most of which are triple-negative (negative for ER, PR, and HER2), compared to luminal A and B subtypes. GPR110 was either gene amplified or upregulated in 4% of all breast cancers based on the publicly available TCGA dataset. GPR110 overexpression predicted poorer recurrence-free survival in triple-negative breast cancer. Furthermore, GPR110 was overexpressed in brain metastatic lesions compared to mammary tumors in patient-derived xenograft models of triple-negative breast cancer (WHIM2 and WHIM30). Knocking down GPR110 reduced anchorage-dependent and -independent cell growth, mammosphere formation, and invasion/migration of triple-negative breast cancer cells. Overall, our results suggest that GPR110 may be a potential drug target in HER2+ and triple-negative breast cancer. Drug discovery efforts to identify GPR110 antagonists will provide useful pharmacological tools for validating GPR110 as a drug target in breast cancer. Since GPR110 is also overexpressed in various other types of cancer, understanding the mechanism of GPR110 upregulation and signaling in cancer is an important future direction.
This work was supported by the Department of Defense Grants W81XWH-14-1-0340 and W81XWH-14-1-0341 to Drs. Trivedi and Schiff, respectively.
Citation Format: Bhat R, Qin L, De Angelis C, Sahay D, Bhargava D, Creighton C, Yadav P, Yazdanfard S, Alrawi A, Yadav V, Vasaikar S, Nanda S, Sethunath V, Fu X, Zhang B, Narkar V, Schiff R, Trivedi M. Role of GPR110 in breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-20-10.
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Affiliation(s)
- R Bhat
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - L Qin
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - C De Angelis
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - D Sahay
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - D Bhargava
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - C Creighton
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - P Yadav
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - S Yazdanfard
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - A Alrawi
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - V Yadav
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - S Vasaikar
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - S Nanda
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - V Sethunath
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - X Fu
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - B Zhang
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - V Narkar
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - R Schiff
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
| | - M Trivedi
- University of Houston College of Pharmacy, Houston; Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston; University of Texas MCGovern Medical School, Houston
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Fernandes S, Singh A, Bhat R, Shetty P. A cadaveric study of fibular (peroneal) artery continuing as dorsalis pedis artery associated with hypoplastic anterior tibial artery and its developmental basis. J ANAT SOC INDIA 2018. [DOI: 10.1016/j.jasi.2018.06.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Teckie S, Marziliano A, DeCoster C, Mulvany C, Bhat R, Diefenbach M. A Mixed Methods Evaluation of Symptom Burden and Quality of Life After Curative Head and Neck Cancer Treatment. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2017.12.249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Ananthakrishnan G, Bhat R, Severn A, Chakraverty S. Stent Graft Exclusion of Pseudo-Aneurysm Arising from PTFE Hemodialysis Graft after Recurrence following Ultrasound Guided Thrombin Injection. J Vasc Access 2018. [DOI: 10.1177/112972980800900412] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
There are various non-invasive or minimally invasive techniques for management of pseudoaneurysms including ultrasound guided compression, ultrasound guided thrombin injection and covered stent placement. We report a case where a covered stent graft was successfully used for the treatment of a pseudoaneurysm directly arising from a PTFE graft which recurred 3 months following treatment with ultrasound guided thrombin injection.
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Affiliation(s)
- G. Ananthakrishnan
- Department of Radiology, Ninewells Hospital and Medical School, Dundee - Scotland
| | - R. Bhat
- Department of Radiology, Ninewells Hospital and Medical School, Dundee - Scotland
| | - A. Severn
- Department of Nephrology, Ninewells Hospital and Medical School, Dundee - Scotland
| | - S. Chakraverty
- Department of Radiology, Ninewells Hospital and Medical School, Dundee - Scotland
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Singh D, Bhat R, Kothari SS. 25-year-old man with chest pain. Heart 2018; 104:72. [DOI: 10.1136/heartjnl-2017-312164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/19/2017] [Accepted: 09/06/2017] [Indexed: 11/04/2022]
Abstract
Clinical introductionA 25-year-old man presented with complaints of acute-onset chest pain for 2 hours associated with diaphoresis and generalised weakness. He had history of smoking for 10 years. There was no history of hypertension, diabetes, family history of premature coronary artery disease or drug abuse. On evaluation, his heart rate was 76/min, blood pressure 130/90 mm Hg and oxygen saturation 97% on room air. Cardiovascular examination was normal. The ECG is shown in figure 1.Figure 1
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Bhat R, García I, Aznar E, Arnaiz B, Martínez-Bisbal MC, Liz-Marzán LM, Penadés S, Martínez-Máñez R. Lectin-gated and glycan functionalized mesoporous silica nanocontainers for targeting cancer cells overexpressing Lewis X antigen. Nanoscale 2017; 10:239-249. [PMID: 29210428 DOI: 10.1039/c7nr06415b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Gated mesoporous silica nanoparticles can deliver payload upon the application of a predefined stimulus, and therefore are promising drug delivery systems. Despite their important role, relatively low emphasis has been placed on the design of gating systems that actively target carbohydrate tumor cell membrane receptors. We describe herein a new Lewis X (Lex) antigen-targeted delivery system comprising mesoporous silica nanoparticles (MSNs) loaded with ATTO 430LS dye, functionalized with a Lex derivative (1) and capped with a fucose-specific carbohydrate-binding protein (Aleuria aurantia lectin (AAL)). This design takes advantage of the affinity of AAL for Lex overexpressed receptors in certain cancer cells. In the proximity of the cells, AAL is detached from MSNs to bind Lex, and selectins in the cells bind Lex in the gated MSNs, thereby inducing cargo delivery. Gated MSNs are nontoxic to colon cancer DLD-1 cells, and ATTO 430LS dye delivered correlated with the amount of Lex antigen overexpressed at the DLD-1 cell surface. This is one of the few examples of MSNs using biologically relevant glycans for both capping (via interaction with AAL) and targeting (via interaction with overexpressed Lex at the cell membrane).
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Affiliation(s)
- R Bhat
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, 46022 Valencia, Spain.
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Watson J, Bhat R, Izzo J, Blumenthal J, Hoffman D, Descallar E, Houser C, Booker E. 325 Telemedicine Model of Physician Intake Decreases Door-to-Provider Time. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Suresh S, Shenoy M, Bhat R, B V, DN B, JV M, KM S, Pawar D. 045 A comparative study of safety and efficacy of tacrolimus topical ointment (biocon’s formulation) versus protopic® topical ointment (astellas pharma) in children and adults with atopic dermatitis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Izzo J, Bhat R, Blumenthal J, Hoffman D, Watson J, Booker E. 323 Diagnostic Accuracy of a Rapid Telemedicine Encounter in the Emergency Department. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.394] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Electron spin resonance (ESR) spectroscopy was employed to detect free radicals in raw Mucuna pruriens (velvet bean) seeds after electron beam irradiation (Microtron source: 0, 2.5, 5, 7.5, 10, 15 and 30 kGy) and conventional processing (roasting, powdering and cooking). The ESR signal of irradiated seeds (g=2.0055±0.0001) was more prominent in the seed coat than cotyledon. Seed coat of irradiated samples showed dose-dependent linear increase of this signal (g = 2.0055) accompanied by a weak triplet (satellite peak; aH = 3 mT) produced exclusively by radiolysis and could be used as an indication of successful irradiation. Irradiated cotyledon portion devoid of satellite peak (triplet) showed a linear increase in signal intensity up to 10 kGy with a sharp decline at higher doses (15 and 30kGy). Stability of radiation-induced ESR signals after 6 months of storage (25 ± 1°C) revealed the presence of a weak triplet with a substantial loss of signal intensity. Thermal effects such as roasting and powdering of seeds increased the signal intensity (g = 2.0055) similar to or in greater proportion than irradiation. Phenolics in seeds, which contribute significantly to detect free radicals in vegetative parts of a plant showed a waning trend in seed coat, while it was vice versa in cotyledon. Textural studies revealed significant loss in firmness after irradiation (p<0.05), which might favour in minimising the cooking time. Results of the present study might help to divulge the beneficial effects of application of electron beam irradiation technology as a better alternative to fumigants in seed preservation for safety and quarantine purposes.
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Affiliation(s)
- R. Bhat
- Microbiology and Biotechnology, Department of Biosciences, Mangalore University Mangalagangotri Mangalore 574 199, Karnataka, India
| | - K.R. Sridhar
- Microbiology and Biotechnology, Department of Biosciences, Mangalore University Mangalagangotri Mangalore 574 199, Karnataka, India,
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41
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Bhat R, Shetty S, Kamath S, Rao RP. Abstract PR228. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492626.91260.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Patil AR, Nandikoor S, De Marco J, Bhat R, Shivakumar S, Mallrajapatna G. Disorders of the lymphatic system of the abdomen. Clin Radiol 2016; 71:941-952. [PMID: 27450410 DOI: 10.1016/j.crad.2016.06.116] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/22/2016] [Accepted: 06/27/2016] [Indexed: 12/31/2022]
Abstract
The lymphatic system of the abdomen comprises of the cisterna chyli, its major and minor lymphatic tributaries, and lymph nodes. Disorders of the lymphatic system of the abdomen are rarely encountered and consist of primary and secondary types. Abdominal lymphangiomas constitute the majority and have characteristic imaging features. Complicated lymphangiomas may pose a diagnostic dilemma. Generalised systemic lymphangiomatosis is a rare condition and affects major organs with a poor prognosis. Retroperitoneal lymphangiectasia in the appropriate setting might predict underlying infection, such as filariasis. Other acquired conditions include iatrogenic or treatment-induced chylocoele. Chylous ascites can be secondary to multiple causes and can be confirmed by biochemical testing and lymphangiogram in appropriate settings.
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Affiliation(s)
- A R Patil
- Departments of Radiology, Apollo Hospitals, Bannerghatta Road, Bangalore, India.
| | - S Nandikoor
- Departments of Radiology, Apollo Hospitals, Bannerghatta Road, Bangalore, India
| | - J De Marco
- Department of Radiology, Morristown Medical Center, Morristown, NJ, USA
| | - R Bhat
- Surgical Gastroenterology, Apollo Hospitals, Bannerghatta Road, Bangalore, India
| | - S Shivakumar
- Pathology, Apollo Hospitals, Bannerghatta Road, Bangalore, India
| | - G Mallrajapatna
- Departments of Radiology, Apollo Hospitals, Bannerghatta Road, Bangalore, India
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43
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Bhat R, Pai S. Immature platelet fraction: a significant platelet parameter in asymptomatic constitutional macrothrombocytopenia. Int J Lab Hematol 2016; 38:e45-7. [DOI: 10.1111/ijlh.12471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R. Bhat
- Department of Laboratory Medicine; Manipal Hospital; Bengaluru India
| | - S. Pai
- Department of Laboratory Medicine; Manipal Hospital; Bengaluru India
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44
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Bhat R, Udupa E, Anushree U, Sheik S, Nayak B. Evaluation of Protein Thiols and Liver Glycogen Content on Streptozotocin Induced Diabetic Rats Treated with Aqueous Extract of Bixa orellana Leaves. ACTA ACUST UNITED AC 2016. [DOI: 10.9734/ijbcrr/2016/28222] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Vankalakunti M, Rao V, Dharmanand B, Bhat R, Guptha V, Rani S, Umesh L, Nalloor S, Kiran J, Bipin M, Rampure S, Babu K, Bonu R, Ballal S. AB0534 Podocytic Abnormalities in SLE – Parallel Mechanism Affecting Kidney. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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46
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Sun XL, Tsai PC, Bhat R, Bonder EM, Michniak-Kohn B, Pietrangelo A. Thermoresponsive block copolymer micelles with tunable pyrrolidone-based polymer cores: structure/property correlations and application as drug carriers. J Mater Chem B 2015; 3:814-823. [DOI: 10.1039/c4tb01494d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Residue structure affects the physicochemical properties, drug loading efficiency, and thermoresponsive drug release profiles of block copolymer micelles with pyrrolidone-based polymer cores.
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Affiliation(s)
- X.-L. Sun
- Department
- of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | - P.-C. Tsai
- Department of Pharmaceutics
- Ernest Mario School of Pharmacy
- Rutgers University
- Piscataway
- USA
| | - R. Bhat
- Department
- of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | - E. M. Bonder
- Department of Biological Sciences
- Rutgers University-Newark
- Newark
- USA
| | - B. Michniak-Kohn
- Department of Pharmaceutics
- Ernest Mario School of Pharmacy
- Rutgers University
- Piscataway
- USA
| | - A. Pietrangelo
- Department
- of Chemistry
- Rutgers University-Newark
- Newark
- USA
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47
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Bhat R, Patel H, Tsai PC, Sun XL, Daoud D, Lalancette RA, Michniak-Kohn B, Pietrangelo A. Effect of residue structure on the thermal and thermoresponsive properties of γ-substituted poly(N-acryloyl-2-pyrrolidones). Polym Chem 2015. [DOI: 10.1039/c5py00649j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We discuss the results of an investigation into the structure/property correlations of γ-substituted poly(N-acryloyl-2-pyrrolidone)s, a recently reported class of pyrrolidone-based polymers prepared from pyroglutamic acid, a bio-derived resource.
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Affiliation(s)
- R. Bhat
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | - H. Patel
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | - P.-C. Tsai
- Department of Pharmaceutics
- Ernest Mario School of Pharmacy
- Rutgers University
- Piscataway
- USA
| | - X.-L. Sun
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | - D. Daoud
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
| | | | - B. Michniak-Kohn
- Department of Pharmaceutics
- Ernest Mario School of Pharmacy
- Rutgers University
- Piscataway
- USA
| | - A. Pietrangelo
- Department of Chemistry
- Rutgers University-Newark
- Newark
- USA
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Cross R, Bhat R, Maloy K, Li Y, Plankey M. 132 Computed Tomography Utilization for Non-Traumatic Abdominal Pain in the Emergency Department Shows Minimal Variability. Ann Emerg Med 2014. [DOI: 10.1016/j.annemergmed.2014.07.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Nadarasa K, Bailey M, Chahal H, Raja O, Bhat R, Gayle C, Grossman AB, Druce MR. The use of cinacalcet in pregnancy to treat a complex case of parathyroid carcinoma. Endocrinol Diabetes Metab Case Rep 2014; 2014:140056. [PMID: 25298882 PMCID: PMC4174590 DOI: 10.1530/edm-14-0056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 08/19/2014] [Indexed: 11/15/2022] Open
Abstract
We present the case of a patient with metastatic parathyroid carcinoma whose hypercalcaemia was medically managed through two pregnancies. The diagnosis was made when the patient presented with chronic knee pain and radiological findings consistent with a brown tumour, at the age of 30. Her corrected calcium and parathyroid hormone (PTH) levels were significantly elevated. Following localisation studies, a right parathyroidectomy was performed with histology revealing parathyroid carcinoma, adherent to thyroid tissue. Aged 33, following biochemical recurrence of disease, the patient underwent a second operation. A subsequent CT and FDG–PET revealed bibasal pulmonary metastases. Aged 35, the patient was referred to our unit for treatment of persistent hypercalcaemia. The focus of treatment at this time was debulking metastatic disease using radiofrequency ablation. Despite advice to the contrary, the patient conceived twice while taking cinacalcet. Even though there are limited available data regarding the use of cinacalcet in pregnancy, both pregnancies continued to term with the delivery of healthy infants, using intensive medical management for persistent hypercalcaemia.
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Affiliation(s)
- K Nadarasa
- Department of Endocrinology, St Bartholomew's Hospital , London , UK
| | - M Bailey
- Department of Endocrinology, St Bartholomew's Hospital , London , UK
| | - H Chahal
- Imperial Centre for Endocrinology, Imperial College Healthcare NHS Trust , London , UK
| | - O Raja
- Department of Endocrinology, St Bartholomew's Hospital , London , UK
| | - R Bhat
- Department of Neonatology, King's College Hospital , London , UK
| | - C Gayle
- Department of Diabetes, King's College Hospital , London , United Kingdom
| | - A B Grossman
- Department of Endocrinology, St Bartholomew's Hospital , London , UK
| | - M R Druce
- Department of Endocrinology, St Bartholomew's Hospital , London , UK
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Defour A, Van der Meulen JH, Bhat R, Bigot A, Bashir R, Nagaraju K, Jaiswal JK. Dysferlin regulates cell membrane repair by facilitating injury-triggered acid sphingomyelinase secretion. Cell Death Dis 2014; 5:e1306. [PMID: 24967968 PMCID: PMC4079937 DOI: 10.1038/cddis.2014.272] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/08/2014] [Accepted: 05/20/2014] [Indexed: 01/17/2023]
Abstract
Dysferlin deficiency compromises the repair of injured muscle, but the underlying cellular mechanism remains elusive. To study this phenomenon, we have developed mouse and human myoblast models for dysferlinopathy. These dysferlinopathic myoblasts undergo normal differentiation but have a deficit in their ability to repair focal injury to their cell membrane. Imaging cells undergoing repair showed that dysferlin-deficit decreased the number of lysosomes present at the cell membrane, resulting in a delay and reduction in injury-triggered lysosomal exocytosis. We find repair of injured cells does not involve formation of intracellular membrane patch through lysosome-lysosome fusion; instead, individual lysosomes fuse with the injured cell membrane, releasing acid sphingomyelinase (ASM). ASM secretion was reduced in injured dysferlinopathic cells, and acute treatment with sphingomyelinase restored the repair ability of dysferlinopathic myoblasts and myofibers. Our results provide the mechanism for dysferlin-mediated repair of skeletal muscle sarcolemma and identify ASM as a potential therapy for dysferlinopathy.
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Affiliation(s)
- A Defour
- Center for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA
| | - J H Van der Meulen
- Center for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA
| | - R Bhat
- Center for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA
| | - A Bigot
- Institut de Myologie, UM76 Université Pierre et Marie Curie, U974 INSERM, UMR7215 CNRS, GH Pitié-Salpétrière, 47 bd de l'Hôpital, Paris, France
| | - R Bashir
- School of Biological and Biochemical Sciences, University of Durham, Durham, UK
| | - K Nagaraju
- Center for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA
- Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - J K Jaiswal
- Center for Genetic Medicine Research, Children's National Medical Center, 111 Michigan Avenue NW, Washington, DC, USA
- Department of Integrative Systems Biology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
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