11 results on '"Kartik Natarajan"'
Search Results
2. Silent storm: Unveiling a rare threat -a case report on atrio-esophageal fistula
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Priyansh Bhayani, Muhammed Shahanas S, Kartik Natarajan, Kallippatti Ramaswamy Palaniswamy, and Paramasivan Piramanayagam
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Atrial-esophageal fistula ,Radiofrequency ablation ,Esophageal injury ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Atrial fibrillation (AF) affects a significant proportion of older individuals, with prevalence rates of 3.8 % in those over 60 and 9.0 % in those over 80 years old, posing a considerable risk of stroke. Radiofrequency ablation (RFA) has emerged as a popular treatment option. However, RFA is not without risks, with esophageal injury being a notable complication, as illustrated by our case study of a 67-year-old patient who developed an atrial-esophageal fistula post-RFA. Timely diagnosis is imperative due to the rarity and severe consequences such as esophageal perforation. While treatment strategies remain somewhat uncertain, initial stenting has given way to surgical intervention for improved outcomes. Our study emphasizes the critical importance of vigilance, early identification, and a multidisciplinary approach in managing this challenging complication.
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- 2024
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- View/download PDF
3. Rising Incidence of Inflammatory Bowel Disease in the Asian Subcontinent—An Exploration of Causative Factors
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Priyansh Bhayani, Kartik Natarajan, and Nayantara Coelho-Prabhu
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inflammatory bowel disease ,ulcerative colitis ,Crohn’s disease ,Medicine ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Inflammatory bowel disease (IBD), comprising ulcerative colitis (UC) and Crohn’s disease (CD), is a global health problem with a worldwide increase in incidence. While previously it was more prevalent in Western countries, especially in North America and Europe, there has been a recent sizeable increase in the incidence of IBD in Asia. This article is a brief overview of the causative factors that contribute to this rise in IBD cases in Asian countries. There is a notable disparity between the Asian IBD population and the Western one in terms of age distribution and gender predilection, and genetic studies reveal both shared and unique susceptibility loci. Changes in environmental factors, including alterations in diet, hygiene, and lifestyle, are thought to play a key role in the epidemiological transition observed in Asia. It is crucial to comprehend how genetic predisposition interacts with environmental factors in order to understand the causes of IBD in the Asian population and develop precise interventions to alleviate its impact.
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- 2024
- Full Text
- View/download PDF
4. Inflammatory bowel diseases in Tamil Nadu: A survey of demographics, clinical profile, and practices
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Rohan V Yewale, Kartik Natarajan, Jeyaraj Ubal Dhus, Sarojini Ashok Parameswaran, Kallipatti RamaswamyPalaniswamy, Doraisamy Babu Vinish, Aravindh Somasundaram, Arulraj Ramakrishnan, Sibithooran Karmegam, Ramaswamy Saraswathy Arun, Ujjani Shankaraiah Manmohan, Balakrishnan Mahadevan, Baskkaran Harri Prasad, Toguluva Seshadri Chandrasekar, Bollu Janakan Gokul, Amit Dutta, Anjilivelil Joseph Joseph, Jayanthi Venkatraman, Panchapakesan Ganesh, Subramanyam Shanmuganathan, Palaniappan L Alagammai, Ramalingam Ramasubramanian, Leelakrishnan Venkatakrishnan, Ramamoorthi Ganesan, Arunachalam ChandrasekaranArun, Sankaranarayanan Srinivas, Mariappan Kannan, M Shanmugam Revathy, Malathi Sathiyasekaran, Arulprakash Sarangapani, Natrajan Rajesh, Velusamy Arulselvan, Arumugam Aravind, Karunakaran Premkumar, Sampath Kavitha, Hema Vijayalakshmi Varadarajulu, Murugesan Manimaran, Pandurangan Basumani, Ananthavadivelu Murali, and Balakrishnan Siddartha Ramakrishna
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Crohn's disease ,epidemiology ,pediatric inflammatory bowel disease ,ulcerative colitis ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Abstract Background Inflammatory bowel disease (IBD) is increasingly diagnosed in South Asia. This survey by the Tamil Nadu Chapter of the Indian Society of Gastroenterology (TNISG) documents the demography, clinical profile, and therapeutic practices related to IBD in Tamil Nadu. Methods TNISG members from 32 institutions completed an online cross‐sectional questionnaire on IBD patients from March 2020 to January 2021. Results Of 1295 adult IBD patients, 654 had Crohn's disease (CD), 499 ulcerative colitis (UC), and 42 IBD‐unclassified (IBD‐U). CD and UC showed a unimodal age distribution. A total of 55% were graduates or postgraduates. A positive family history was noted in 30, other risk factors were uncommon. In CD, the pattern of involvement was ileocolonic (42.8%), ileal (34.7%), colonic (18.9%), and upper gastrointestinal (3.5%); while in UC, disease was characterized as extensive (44.9%), left‐sided (41.7%), or proctitis (13.4%). Perineal disease, perianal fistulae, and bowel obstruction were noted in 4.3, 14.0, and 23.5%, respectively, of CD. The most widely used drugs were mesalamine, azathioprine, and corticosteroids. Surgery was undertaken in 141 patients with CD and 23 patients with UC. Of the 138 patients with pediatric IBD (≤16 years), 23 were characterized as very early onset IBD (VEO‐IBD), 27 as early‐onset, and 88 as adolescent IBD. VEO‐IBD were more likely to have a positive family history of IBD and were more likely to have perineal disease and to have the IBD‐U phenotype. Among pediatric IBD patients, corticosteroids, mesalamine, and azathioprine were the most commonly used medications, while 25 pediatric patients received biologics. Conclusion This study provides important information on demography, clinical profile, and treatment practices of IBD in India.
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- 2021
- Full Text
- View/download PDF
5. Incidence of tuberculosis among HIV infected individuals on long term antiretroviral therapy in private healthcare sector in Pune, Western India
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Ameet Dravid, Kartik Natarajan, Mahenderkumar Medisetty, Raviraj Gawali, Uma Mahajan, Milind Kulkarni, Chinmay Saraf, Charuta Ghanekar, Sachin Kore, Niranjan Rathod, and Mrudula Dravid
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Incident tuberculosis ,HIV ,India ,Private healthcare sector ,Antiretroviral therapy ,Isoniazid preventive therapy ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background Despite rapid scale up of antiretroviral therapy (ART), Tuberculosis (TB) remains the commonest opportunistic infection and cause of death among HIV infected individuals in resource limited settings like India. Incidence of TB in individuals on ART in private healthcare sector in India is infrequently studied. Methods This retrospective cohort study conducted between 1st March 2009 and 1st March 2017 aimed to evaluate rate of incident TB in individuals initiated on ART at 3 private sector ART clinics in Pune, India. Individuals more than 12 years of age with ART duration of atleast 6 months were included. Patients were classified as having prevalent TB if they had a TB episode within the year prior to ART initiation or if they developed TB within 6 months of starting ART. Individuals who were diagnosed with TB after 6 months of starting ART were classified as incident TB cases. A recurrent episode of TB after treatment completion or cure of prevalent TB was also regarded as incident TB. Patients were classified as definitive TB if Mycobacterium tuberculosis was grown in culture from a biological sample or a positive rapid molecular test. Patients were classified as probable TB if there was radiologic evidence of TB in absence of confirmatory culture or PCR. Results 1904 patients with a median duration of follow up on ART of 57 (IQR = 32.0, 84.0) months were included. Of these, 182 developed incident TB (22% definitive TB, 38% recurrent cases). TB incidence at 6–12 months, 13–24 months, 25–60 months and > 60 months of ART was 24.32, 5.46, 2.54 and 0.75 cases per 100 person years respectively. Current time updated CD4 count
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- 2019
- Full Text
- View/download PDF
6. Inflammatory bowel diseases in Tamil Nadu: A survey of demographics, clinical profile, and practices
- Author
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Sampath Kavitha, Arulprakash Sarangapani, Rohan Yewale, Balakrishnan S. Ramakrishna, Doraisamy Babu Vinish, Jeyaraj Ubal Dhus, Aravindh Somasundaram, M Shanmugam Revathy, Leelakrishnan Venkatakrishnan, Ananthavadivelu Murali, Kartik Natarajan, Sibithooran Karmegam, Amit Kumar Dutta, Jayanthi Venkatraman, Balakrishnan Mahadevan, Malathi Sathiyasekaran, Arunachalam Chandrasekaran Arun, Subramanyam Shanmuganathan, Ramaswamy Saraswathy Arun, Ramalingam Ramasubramanian, Natrajan Rajesh, Baskkaran Harri Prasad, Ramamoorthi Ganesan, Sarojini Ashok Parameswaran, Arumugam Aravind, Panchapakesan Ganesh, Velusamy Arulselvan, Bollu Janakan Gokul, Hema Vijayalakshmi Varadarajulu, Sankaranarayanan Srinivas, Toguluva Seshadri Chandrasekar, Kallipatti Ramaswamy Palaniswamy, Karunakaran Premkumar, Murugesan Manimaran, Mariappan Kannan, Palaniappan L Alagammai, Arulraj Ramakrishnan, Pandurangan Basumani, A J Joseph, and Ujjani Shankaraiah Manmohan
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medicine.medical_specialty ,Azathioprine ,RC799-869 ,digestive system ,Inflammatory bowel disease ,Internal medicine ,Epidemiology ,pediatric inflammatory bowel disease ,medicine ,Family history ,Proctitis ,ulcerative colitis ,Crohn's disease ,Hepatology ,business.industry ,Gastroenterology ,Original Articles ,Diseases of the digestive system. Gastroenterology ,medicine.disease ,Ulcerative colitis ,digestive system diseases ,Bowel obstruction ,Original Article ,epidemiology ,business ,medicine.drug - Abstract
Background Inflammatory bowel disease (IBD) is increasingly diagnosed in South Asia. This survey by the Tamil Nadu Chapter of the Indian Society of Gastroenterology (TNISG) documents the demography, clinical profile, and therapeutic practices related to IBD in Tamil Nadu. Methods TNISG members from 32 institutions completed an online cross‐sectional questionnaire on IBD patients from March 2020 to January 2021. Results Of 1295 adult IBD patients, 654 had Crohn's disease (CD), 499 ulcerative colitis (UC), and 42 IBD‐unclassified (IBD‐U). CD and UC showed a unimodal age distribution. A total of 55% were graduates or postgraduates. A positive family history was noted in 30, other risk factors were uncommon. In CD, the pattern of involvement was ileocolonic (42.8%), ileal (34.7%), colonic (18.9%), and upper gastrointestinal (3.5%); while in UC, disease was characterized as extensive (44.9%), left‐sided (41.7%), or proctitis (13.4%). Perineal disease, perianal fistulae, and bowel obstruction were noted in 4.3, 14.0, and 23.5%, respectively, of CD. The most widely used drugs were mesalamine, azathioprine, and corticosteroids. Surgery was undertaken in 141 patients with CD and 23 patients with UC. Of the 138 patients with pediatric IBD (≤16 years), 23 were characterized as very early onset IBD (VEO‐IBD), 27 as early‐onset, and 88 as adolescent IBD. VEO‐IBD were more likely to have a positive family history of IBD and were more likely to have perineal disease and to have the IBD‐U phenotype. Among pediatric IBD patients, corticosteroids, mesalamine, and azathioprine were the most commonly used medications, while 25 pediatric patients received biologics. Conclusion This study provides important information on demography, clinical profile, and treatment practices of IBD in India., Regional differences in inflammatory bowel disease (IBD) profile inform our understanding of the disease as well as prevention, and health planning. This study provides a snapshot of IBD presentation and practices in India at a time when the country is in the second of four phases of IBD transition. The apparently mild nature of IBD, the consequent widespread use of mesalamine, and the association of Crohn's disease with higher levels of education, compared to ulcerative colitis, are of notable interest.
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- 2021
7. Rodenticide ingestion is an important cause of acute hepatotoxicity in Tamil Nadu, southern India
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Shafique Adamali, Thasneem Taj Elikkottil, Aravind Arumugam, Venkatakrishnan Leelakrishnan, Chandan Kumar Kedarisetty, Vijai Shankar Chidambara Manivasagam, Aravindh Somasundaram, Mugilan Karthikeyan, Joy Varghese, Mousumi Sen, Arulselvan Velusamy, Mukundan Swaminathan, Vijaya Prakash Madesh, Hemamala V. Saithanyamurthi, N. Murugan, Kandasamy Alias Kumar, Kannan Mariappan, Poppy Rejoice, Ganesan Ramamoorthy, Lakshmanan Jeyaseelan, Anand Vimal Dev, Caroline Selvi, Sumathi Bavanandam, Kartik Natarajan, Ramani Rathnavel, Ambily Nadaraj, Arulraj Ramakrishnan, Rajalakshmi Kandasamy Venkatraj, Ravindra Kantamaneni, Vaishnavi Priyaa Chellamuthu, Jayanthi Venkataraman, Allwin James Dorairaj, Chundamannil E. Eapen, Manimaran Murugesan, Senthilvadivu Arumugam, Ramkumar Govindarajan, Alagammai Palaniappan, Dheeraj Kumar Anupa, Chitra Shanmugam, Kavitha Sampathkumar, Jeyaraj Ubal Dhus, and Revathy Marimuthu Shanmugam
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Toxic hepatitis ,Adult ,Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,India ,Liver transplantation ,Drug overdose ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Internal medicine ,Medicine ,Ingestion ,Humans ,Rodenticide ,Risk factor ,Acetaminophen ,Retrospective Studies ,business.industry ,Gastroenterology ,Hepatotoxin ,Rodenticides ,Liver Failure, Acute ,medicine.disease ,Liver Transplantation ,030220 oncology & carcinogenesis ,Attributable risk ,030211 gastroenterology & hepatology ,Female ,medicine.symptom ,Chemical and Drug Induced Liver Injury ,Drug Overdose ,business ,Liver Failure - Abstract
Though rodenticidal hepatotoxicity is reported from India, there is no systematic study to assess its magnitude. This study aimed to assess exposure to rodenticide as a risk factor for acute hepatotoxicity in Tamil Nadu, India. We retrospectively analyzed acute hepatotoxicity caused by ingestion of hepatotoxin or potentially hepatotoxic drug overdose across 15 hospitals in 6 districts of Tamil Nadu from 1 January 2019 to 30 June 2019. Study exclusion criteria were idiosyncratic drug-induced liver injury and chronic liver diseases. Of the 702 patients, 685 gave history of consuming rodenticide; hepatotoxicity in the other patients resulted from paracetamol overdose (n=10) and due to other drugs (n=7); 97% patients had a suicidal intent. Of 671 patients with complete data, ratio of number of patients with hepatotoxicity due to rodenticide to paracetamol overdose was 450:6 (i.e. 75:1). The 451 rodenticidal hepatotoxicity patients (255 males, 75% were 15–34 years old) underwent conservative management (n=396), plasma exchange (n=54) and plasma exchange followed by liver transplant (n=1); 159 patients (35%) had poor outcome (131 died, 28 discharged in moribund state). Based on our observations, we estimate a case burden of 1584 rodenticidal hepatotoxicity patients (95% CI: 265–6119) with poor outcome in 554 patients in Tamil Nadu from January 2019 to June 2019. Population attributable risk for rodenticide as cause of hepatotoxicity was 22.7%. Rodenticide ingestion was an important cause of acute hepatotoxicity in Tamil Nadu. Most patients were young and one-third had poor outcome. Public health interventions are needed to address this.
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- 2020
8. Hemophagocytic lymphohistiocytosis secondary to classic hodgkin lymphoma in a patient with decompensated chronic liver disease
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Kartik Natarajan, Sheba Jacob, Satya Prasad, Prabhu Pandurangan, and KallipattiRamasamy Palaniswamy
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General Medicine - Published
- 2022
9. Incidence of tuberculosis among HIV infected individuals on long term antiretroviral therapy in private healthcare sector in Pune, Western India
- Author
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Uma Mahajan, Sachin D. Kore, Kartik Natarajan, Raviraj Gawali, Ameet Dravid, Chinmay Saraf, Mrudula Dravid, Charuta Ghanekar, Niranjan M. Rathod, Milind Kulkarni, and Mahenderkumar Medisetty
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Adult ,Male ,0301 basic medicine ,Pediatrics ,medicine.medical_specialty ,Tuberculosis ,Anti-HIV Agents ,Opportunistic infection ,030106 microbiology ,Health Care Sector ,India ,HIV Infections ,Incident tuberculosis ,lcsh:Infectious and parasitic diseases ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Medical microbiology ,Isoniazid preventive therapy ,medicine ,Humans ,lcsh:RC109-216 ,030212 general & internal medicine ,Proportional Hazards Models ,Retrospective Studies ,Cause of death ,AIDS-Related Opportunistic Infections ,business.industry ,Incidence ,Incidence (epidemiology) ,Hazard ratio ,HIV ,Retrospective cohort study ,Middle Aged ,medicine.disease ,CD4 Lymphocyte Count ,Antiretroviral therapy ,Infectious Diseases ,Tropical medicine ,Private healthcare sector ,Female ,Private Sector ,business ,Research Article - Abstract
Background Despite rapid scale up of antiretroviral therapy (ART), Tuberculosis (TB) remains the commonest opportunistic infection and cause of death among HIV infected individuals in resource limited settings like India. Incidence of TB in individuals on ART in private healthcare sector in India is infrequently studied. Methods This retrospective cohort study conducted between 1st March 2009 and 1st March 2017 aimed to evaluate rate of incident TB in individuals initiated on ART at 3 private sector ART clinics in Pune, India. Individuals more than 12 years of age with ART duration of atleast 6 months were included. Patients were classified as having prevalent TB if they had a TB episode within the year prior to ART initiation or if they developed TB within 6 months of starting ART. Individuals who were diagnosed with TB after 6 months of starting ART were classified as incident TB cases. A recurrent episode of TB after treatment completion or cure of prevalent TB was also regarded as incident TB. Patients were classified as definitive TB if Mycobacterium tuberculosis was grown in culture from a biological sample or a positive rapid molecular test. Patients were classified as probable TB if there was radiologic evidence of TB in absence of confirmatory culture or PCR. Results 1904 patients with a median duration of follow up on ART of 57 (IQR = 32.0, 84.0) months were included. Of these, 182 developed incident TB (22% definitive TB, 38% recurrent cases). TB incidence at 6–12 months, 13–24 months, 25–60 months and > 60 months of ART was 24.32, 5.46, 2.54 and 0.75 cases per 100 person years respectively. Current time updated CD4 count
- Published
- 2019
10. Primary Small Cell Carcinoma of Liver in a HIV/Hepatitis B Co-Infected Patient on Virologically Suppressive Antiretroviral Therapy: Case Report and Literature Review
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Mahesh Mandolkar, Sujit Joshi, Chinmay Saraf, Milind M. Kulkarni, Vinay Thorat, Mahenderkumar Medisetty, Kartik Natarajan, Ameet Dravid, Padmaj Kulkarni, Sujit Nilegaonkar, and Deepak Phalgune
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medicine.medical_specialty ,Chemotherapy ,biology ,medicine.diagnostic_test ,business.industry ,medicine.medical_treatment ,Hepatitis B ,medicine.disease ,Gastroenterology ,Small-cell carcinoma ,Internal medicine ,Liver biopsy ,Vomiting ,medicine ,biology.protein ,Immunohistochemistry ,Neoplasm ,medicine.symptom ,Antibody ,business - Abstract
Primary small cell carcinoma of the liver is a rare tumor with few cases reported worldwide. We report a case of primary small cell carcinoma of the liver in a HIV/Hepatitis B co-infected patient on Tenofovir based virologically suppressive antiretroviral therapy (ART). Patient presented with fatigue and vomiting, two years after starting ART. CT abdomen showed hepatomegaly with diffuse infiltration. Liver biopsy established a diagnosis of small cell cancer of liver. Immunohistochemistry results were positive for synaptophysin and CD56 while they were negative for Hep par antibody stain 1. Positron Emission Tomography (PET) scan suggested a diagnosis of malignant neoplasm in the liver. Chemotherapy was started which led to hyperacute liver failure. Patient recovered from liver failure and received 3 cycles of chemotherapy. PET scan done at 3 months showed complete regression of neoplasm but prior to start of 4th cycle, neoplasm relapsed, and patient died 15 days later. Here we discuss the clinical course and treatment of a case of primary small cell carcinoma (SCC) of the liver and review the literature regarding this rare cancer
- Published
- 2017
11. Use of Genotype Mycobacterium tuberculosis and Drug Resistance Plus Assay for the Diagnosis of Drug-Resistant Tuberculosis in Human Immunodeficiency Virus and Tuberculosis Coinfected Patients
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Ameet Dravid, Arun Bahulikar, and Kartik Natarajan
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Tuberculosis ,biology ,business.industry ,Drug resistant tuberculosis ,Human immunodeficiency virus (HIV) ,Drug resistance ,biology.organism_classification ,medicine.disease_cause ,medicine.disease ,Virology ,Mycobacterium tuberculosis ,Infectious Diseases ,Oncology ,Genotype ,Medicine ,business - Published
- 2016
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