455 results on '"Sanghamitra Mohanty"'
Search Results
2. Impact of digital monitoring on compliance and outcome of lifestyle-change measures in patients with coexistent atrial fibrillation and obesity
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Sanghamitra Mohanty, MD, FHRS, Chintan Trivedi, MD, MPH, FHRS, Domenico Giovanni Della Rocca, MD, Carola Gianni, MD, Bryan MacDonald, MD, Angel Mayedo, MD, SaiShishir Shetty, DPharm, MHI, Eleanora Natale, HSGrad, John D. Burkhardt, MD, FHRS, Mohamed Bassiouny, MD, G. Joseph Gallinghouse, MD, Rodney Horton, MD, Amin Al-Ahmad, MD, FHRS, and Andrea Natale, MD, FACC, FHRS, FESC
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Digital monitoring ,App ,Lifestyle change ,Weight loss ,Atrial fibrillation ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 ,Medical technology ,R855-855.5 - Abstract
Introduction: Obesity, a known risk factor for atrial fibrillation (AF), is potentially reversible through lifestyle changes, including diet and physical activity. However, lack of compliance is a major obstacle in attaining sustained weight loss. We investigated the impact of patient engagement using a digital monitoring system on compliance for lifestyle-change measures and subsequent outcome. Methods: A total of 105 consecutive patients with coexistent AF and obesity (body mass index ≥28) were classified into 2 groups based on the monitoring method: group 1, use of digital platform (n = 20); group 2, conventional method (n = 85). Group 1 used the RFMx digital monitoring platform (smartphone app) that sets weekly goals for exercise and weight loss, tracks patient compliance data continuously, and sends regular text reminders. Conventional method included monitoring patients’ adherence to diet and change in weight during in-person clinic visits or monthly phone calls from staff. Results: Baseline characteristics of groups 1 and 2 were comparable. At 6 months of follow-up, 12 (60%) and 28 (33%) from group 1 and 2, respectively, were compliant with the physician instructions regarding diet and exercise (P = .025). Weight loss was observed in 9 of 12 (75%) from group 1 and 11 of 28 (39%) from group 2 (P = .038) and mean reduction in weight was 9.9 ± 8.9 lb and 4.0 ± 2.1 lb (P = .042). Conclusion: In this series, continuous digital monitoring was seen to be associated with significant improvement in compliance through better patient engagement, resulting in more weight loss compared to the conventional method.
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- 2022
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3. Impact of Catheter Ablation on Quality of Life and Healthcare Utilisation
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Sanghamitra Mohanty and Andrea Natale
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Published
- 2021
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4. Higher Hospitalization Rate and Impaired Quality of Life in the Presence of Severe Tricuspid Regurgitation in Patients With Newly Diagnosed Atrial Fibrillation: Is the Risk Real?
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Sanghamitra Mohanty and Andrea Natale
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Editorials ,atrial fibrillation ,heart failure ,quality of life ,tricuspid regurgitation ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Published
- 2022
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5. Racial and Ethnic Differences in the Management of Atrial Fibrillation
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Kamala P. Tamirisa, MD, Sana M. Al-Khatib, MD, MHS, Sanghamitra Mohanty, MD, Janet K. Han, MD, Andrea Natale, MD, Dhiraj Gupta, MD, Andrea M. Russo, MD, Amin Al-Ahmad, MD, Anne M. Gillis, MD, and Kevin L. Thomas, MD
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Atrial fibrillation (AF) is the most common clinical arrhythmia, and it results in adverse outcomes and increased healthcare costs. Racial and ethnic differences in AF management, although recognized, are poorly understood. This review summarizes racial differences in AF epidemiology, genetics, clinical presentation, and management. In addition, it highlights the underrepresentation of racial and ethnic populations in AF clinical trials, especially trials focused on stroke prevention. Specific strategies are proposed for future research and initiatives that have potential to eliminate racial and ethnic differences in the care of patients with AF. Addressing racial and ethnic disparities in healthcare access, enrollment in clinical trials, resource allocation, prevention, and management will likely narrow the gaps in the care and outcomes of racial and ethnic minorities suffering from AF. Résumé: La fibrillation auriculaire (FA) est la forme clinique d’arythmie la plus fréquente, et elle entraîne des résultats défavorables ainsi qu’une augmentation du coût des soins de santé. Les différences liées à la race et à l’origine ethnique qui existent dans la prise en charge de la FA, bien que reconnues, sont mal comprises. Le présent article de synthèse résume les différences liées à la race observées sur le plan de l’épidémiologie, de la génétique, du tableau clinique et de la prise en charge de la FA. En outre, il met en lumière la sous-représentation de groupes raciaux et ethniques dans les études cliniques sur la FA, en particulier celles axées sur la prévention des accidents vasculaires cérébraux. Des stratégies ad hoc sont proposées pour que la recherche et les initiatives futures favorisent l’éradication des différences liées à la race et à l’origine ethnique dans les soins prodigués aux patients atteints de FA. Le fait de s’attaquer aux disparités liées à la race et à l’origine ethnique qui touchent l’accès aux soins de santé, l’inscription aux essais cliniques, l’allocation des ressources, la prévention et la prise en charge des patients permettra probablement de réduire les lacunes en matière de soins et de résultats chez les personnes atteintes de FA issues de minorités raciales et ethniques.
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- 2021
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6. Natural History of Arrhythmia After Successful Isolation of Pulmonary Veins, Left Atrial Posterior Wall, and Superior Vena Cava in Patients With Paroxysmal Atrial Fibrillation: A Multi‐Center Experience
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Sanghamitra Mohanty, Chintan Trivedi, Pamela Horton, Domenico G. Della Rocca, Carola Gianni, Bryan MacDonald, Angel Mayedo, Javier Sanchez, G. Joseph Gallinghouse, Amin Al‐Ahmad, Rodney P. Horton, J. David Burkhardt, Antonio Dello Russo, Michela Casella, Claudio Tondo, Sakis Themistoclakis, Giovanni Forleo, Luigi Di Biase, and Andrea Natale
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catheter ablation ,late recurrence ,left atrial appendage ,paroxysmal atrial fibrillation ,pulmonary vein isolation ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background We evaluated long‐term outcome of isolation of pulmonary veins, left atrial posterior wall, and superior vena cava, including time to recurrence and prevalent triggering foci at repeat ablation in patients with paroxysmal atrial fibrillation with or without cardiovascular comorbidities. Methods and Results A total of 1633 consecutive patients with paroxysmal atrial fibrillation that were arrhythmia‐free for 2 years following the index ablation were classified into: group 1 (without comorbidities); n=692 and group 2 (with comorbidities); n=941. We excluded patients with documented ablation of areas other than pulmonary veins, the left atrial posterior wall, and the superior vena cava at the index procedure. At 10 years after an average of 1.2 procedures, 215 (31%) and 480 (51%) patients had recurrence with median time to recurrence being 7.4 (interquartile interval [IQI] 4.3–8.5) and 5.6 (IQI 3.8–8.3) years in group 1 and 2, respectively. A total of 201 (93.5%) and 456 (95%) patients from group 1 and 2 underwent redo ablation; 147/201 and 414/456 received left atrial appendage and coronary sinus isolation and 54/201 and 42/456 had left atrial lines and flutter ablation. At 2 years after the redo, 134 (91.1%) and 391 (94.4%) patients from group 1 and 2 receiving left atrial appendage/coronary sinus isolation remained arrhythmia‐free whereas sinus rhythm was maintained in 4 (7.4%) and 3 (7.1%) patients in respective groups undergoing empirical lines and flutter ablation (P
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- 2021
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7. Impact of Oral Anticoagulation Therapy Versus Left Atrial Appendage Occlusion on Cognitive Function and Quality of Life in Patients With Atrial Fibrillation
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Sanghamitra Mohanty, Prasant Mohanty, Chintan Trivedi, Joanna Assadourian, Angel Quintero Mayedo, Bryan MacDonald, Domenico G. Della Rocca, Carola Gianni, Rodney Horton, Amin Al‐Ahmad, Mohamed Bassiouny, John D. Burkhardt, Luigi Di Biase, M. Edip Gurol, and Andrea Natale
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AFEQT ,atrial fibrillation (AF) ,cognition ,left atrial appendage occlusion (LAAO) ,MoCA ,oral anticoagulation (OAC) ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background We compared the cognitive status and quality of life in patients with atrial fibrillation undergoing left atrial appendage occlusion (LAAO) or remaining on oral anticoagulation (OAC) after atrial fibrillation ablation. Methods and Results Cognition was assessed by the Montreal Cognitive Assessment (MoCA) survey at baseline and follow‐up. Consecutive patients receiving LAAO or OAC after atrial fibrillation ablation were screened, and patients with a score of ≤17 were excluded from the study. Quality of life was measured at baseline and 1 year using the Atrial Fibrillation Effect on Quality of Life survey. A total of 50 patients (CHA2DS2‐VASc [congestive heart failure, hypertension, age≥75 years, diabetes mellitus, stroke or transient ischemic attack, vascular disease, age 65–74 years, sex category] score: 3.30±1.43) in the LAAO group and 48 (CHA2DS2‐VASc score 2.73±1.25) in the OAC group were included in this prospective study. Mean baseline MoCA score was 26.18 and 26.08 in the LAAO and OAC groups, respectively (P=0.846). At 1 year, scores were 26.94 and 23.38 in the respective groups. MoCA score decreased by an estimated −2.74 (95% CI, −3.61 to −1.87; P
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- 2021
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8. Long-term Outcome of Pulmonary Vein Isolation Versus Amiodarone Therapy in Patients with Coexistent Persistent AF and Congestive Heart Failure
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Michela Faggioni, Domenico G Della Rocca, Sanghamitra Mohanty, Chintan Trivedi, Ugur Canpolat, Carola Gianni, Amin Al-Ahmad, Rodney Horton, Gerald Joseph Gallinghouse, John David Burkhardt, and Andrea Natale
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Although pharmacological rhythm control of AF in patients with heart failure with reduced ejection fraction (HFrEF) does not seem to provide any benefit over rate control, catheter ablation of AF has been shown to improve clinical outcomes. These results can be explained with higher success rates of catheter ablation in restoring and maintaining sinus rhythm compared with antiarrhythmic drugs. In addition, pharmacotherapy is not void of side-effects, which are thought to offset its potential antiarrhythmic benefits. Therefore, efforts should be made towards optimisation of ablation techniques for AF in patients with HFrEF.
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- 2020
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9. Catheter Ablation of Life-Threatening Ventricular Arrhythmias in Athletes
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Nicola Tarantino, Domenico G. Della Rocca, Nicole S. De Leon De La Cruz, Eric D. Manheimer, Michele Magnocavallo, Carlo Lavalle, Carola Gianni, Sanghamitra Mohanty, Chintan Trivedi, Amin Al-Ahmad, Rodney P. Horton, Mohamed Bassiouny, J. David Burkhardt, G. Joseph Gallinghouse, Giovanni B. Forleo, Luigi Di Biase, and Andrea Natale
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athletes ,catheter ablation ,sports cardiology ,ventricular arrhythmia ,ventricular tachycardia ,Medicine (General) ,R5-920 - Abstract
A recent surveillance analysis indicates that cardiac arrest/death occurs in ≈1:50,000 professional or semi-professional athletes, and the most common cause is attributable to life-threatening ventricular arrhythmias (VAs). It is critically important to diagnose any inherited/acquired cardiac disease, including coronary artery disease, since it frequently represents the arrhythmogenic substrate in a substantial part of the athletes presenting with major VAs. New insights indicate that athletes develop a specific electro-anatomical remodeling, with peculiar anatomic distribution and VAs patterns. However, because of the scarcity of clinical data concerning the natural history of VAs in sports performers, there are no dedicated recommendations for VA ablation. The treatment remains at the mercy of several individual factors, including the type of VA, the athlete’s age, and the operator’s expertise. With the present review, we aimed to illustrate the prevalence, electrocardiographic (ECG) features, and imaging correlations of the most common VAs in athletes, focusing on etiology, outcomes, and sports eligibility after catheter ablation.
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- 2021
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10. A microchip CD4 counting method for HIV monitoring in resource-poor settings.
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William R Rodriguez, Nicolaos Christodoulides, Pierre N Floriano, Susan Graham, Sanghamitra Mohanty, Meredith Dixon, Mina Hsiang, Trevor Peter, Shabnam Zavahir, Ibou Thior, Dwight Romanovicz, Bruce Bernard, Adrian P Goodey, Bruce D Walker, and John T McDevitt
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Medicine - Abstract
BACKGROUND: More than 35 million people in developing countries are living with HIV infection. An enormous global effort is now underway to bring antiretroviral treatment to at least 3 million of those infected. While drug prices have dropped considerably, the cost and technical complexity of laboratory tests essential for the management of HIV disease, such as CD4 cell counts, remain prohibitive. New, simple, and affordable methods for measuring CD4 cells that can be implemented in resource-scarce settings are urgently needed. METHODS AND FINDINGS: Here we describe the development of a prototype for a simple, rapid, and affordable method for counting CD4 lymphocytes. Microliter volumes of blood without further sample preparation are stained with fluorescent antibodies, captured on a membrane within a miniaturized flow cell and imaged through microscope optics with the type of charge-coupled device developed for digital camera technology. An associated computer algorithm converts the raw digital image into absolute CD4 counts and CD4 percentages in real time. The accuracy of this prototype system was validated through testing in the United States and Botswana, and showed close agreement with standard flow cytometry (r = 0.95) over a range of absolute CD4 counts, and the ability to discriminate clinically relevant CD4 count thresholds with high sensitivity and specificity. CONCLUSION: Advances in the adaptation of new technologies to biomedical detection systems, such as the one described here, promise to make complex diagnostics for HIV and other infectious diseases a practical global reality.
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- 2005
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11. Atrial Fibrillation Recurrence Risk Prediction From 12-Lead ECG Recorded Pre- and Post-Ablation Procedure.
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Eran Zvuloni, Sheina Gendelman, Sanghamitra Mohanty, Jason Lewen, Andrea Natale, and Joachim A. Behar
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- 2022
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12. Language Identification - A Supportive Tool for Multilingual ASR in Indian Perspective.
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Basanta Kumar Swain and Sanghamitra Mohanty
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- 2019
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13. Feasibility and Safety of Intravenous Sotalol Loading in Adult Patients With Atrial Fibrillation (DASH-AF)
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Dhanunjaya Lakkireddy, Adnan Ahmed, Donita Atkins, Danish Bawa, Jalaj Garg, Jenny Bush, Rishi Charate, Sudha Bommana, Naga Venkata K. Pothineni, Rajesh Kabra, Douglas Darden, Scott Koreber, Rangarao Tummala, Chandrashekar Vasamreddy, Peter Park, Sanghamitra Mohanty, Rakesh Gopinathannair, B. Woun Seo, Andrea Natale, and Robert Kennedy
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- 2023
14. Speech-Based Biometric Using Odia Phonetics
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Swain, Basanta Kumar, primary and Sanghamitra, Mohanty, additional
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- 2019
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15. Takotsubo Syndrome Following Catheter Ablation for Atrial Fibrillation
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Sanghamitra Mohanty, Carola Gianni, Angel Mayedo, Bryan MacDonald, Amin Al-Ahmad, Mohamed Bassiouny, G. Joseph Gallinghouse, Rodney Horton, John D. Burkhardt, and Andrea Natale
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- 2023
16. Risk Assessment and Management of Patients Undergoing Left Atrial Appendage Isolation
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Carola Gianni, Domenico Della Rocca, Bryan C. MacDonald, Angel Quintero Mayedo, Sanghamitra Mohanty, Mohamed A. Bassiouny, J. David Burkhardt, Rodney P. Horton, G. Joseph Gallinghouse, Javier E. Sanchez, Andrea Natale, and Amin Al-Ahmad
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Pharmacology ,Pharmacology (medical) - Published
- 2022
17. Impact of Colchicine Monotherapy on the Risk of Acute Pericarditis Following Atrial Fibrillation Ablation
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Sanghamitra Mohanty, Prasant Mohanty, Danielle Kessler, Carola Gianni, Karim K. Baho, Trevor Morris, Tuna Yildiz, Angel Quintero Mayedo, Bryan MacDonald, Domenico G. Della Rocca, Amin Al-Ahmad, Mohamed Bassiouny, G. Joseph Gallinghouse, Rodney Horton, John D. Burkhardt, Luigi di Biase, and Andrea Natale
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- 2023
18. Best ablation strategy in patients with premature ventricular contractions with multiple morphology: a single-centre experience
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Sanghamitra Mohanty, John D Burkhardt, Luigi Di Biase, Prasant Mohanty, Sai Shishir Shetty, Carola Gianni, Domenico G Della Rocca, Karim K Baho, Trevor Morris, Angel Mayedo, Bryan MacDonald, Amin Al-Ahmad, Mohamed Bassiouny, Gerald Joseph Gallinghouse, Rodney Horton, and Andrea Natale
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Abstract
AimsThis study aimed to examine the clinical benefits of targeted ablation of all Premature ventricular complex (PVC) morphologies vs. predominant PVC only.Methods and resultsA total of 171 consecutive patients with reduced left ventricular ejection fraction (LVEF) and ≥2 PVC morphology with high burden (>10%/day) undergoing their first ablation procedure were included in the analysis. At the initial procedure, prevalent PVC alone was ablated in the majority. However, at the redo, all PVC morphologies were targeted for ablation. : At the first procedure, 152 (89%) patients received ablation of the dominant PVC only. In the remaining 19 (11%) patients, all PVC morphologies were ablated. At two years, high PVC burden was detected in 89 (52%) patients. Repeat procedure was performed in 78 of 89, where all PVC morphologies were ablated. At 5 years after the repeat procedure, 71 (91%) had PVC burden of ConclusionIn this observational series, ablation of all PVC morphologies was associated with significantly lower PVC burden and improvement of LVEF at long-term follow-up, compared with ablation of the dominant morphology only.
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- 2023
19. Genome-wide association study reveals novel genetic loci
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Carolina Roselli, Mengyao Yu, Victor Nauffal, Adrien Georges, Qiong Yang, Katie Love, Lu Chen Weng, Francesca N Delling, Svetlana R Maurya, Maren Schrölkamp, Jacob Tfelt-Hansen, Albert Hagège, Xavier Jeunemaitre, Stéphanie Debette, Philippe Amouyel, Wyliena Guan, Jochen D Muehlschlegel, Simon C Body, Svati Shah, Zainab Samad, Sergiy Kyryachenko, Carol Haynes, Michiel Rienstra, Thierry Le Tourneau, Vincent Probst, Ronan Roussel, Inez J Wijdh-Den Hamer, Joylene E Siland, Kirk U Knowlton, Jean Jacques Schott, Robert A Levine, Emelia J Benjamin, Ramachandran S Vasan, Benjamin D Horne, Joseph B Muhlestein, Giovanni Benfari, Maurice Enriquez-Sarano, Andrea Natale, Sanghamitra Mohanty, Chintan Trivedi, Moore B Shoemaker, Zachary T Yoneda, Quinn S Wells, Michael T Baker, Eric Farber-Eger, Hector I Michelena, Alicia Lundby, Russell A Norris, Susan A Slaugenhaupt, Christian Dina, Steven A Lubitz, Nabila Bouatia-Naji, Patrick T Ellinor, David J Milan, and Cardiovascular Centre (CVC)
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Adult ,Proteomics ,Mitral Valve Prolapse ,Latent TGF-beta Binding Proteins ,Genetic Loci ,Risk Factors ,Translational Research ,Humans ,Mitral Valve Insufficiency ,Cardiology and Cardiovascular Medicine ,Genome-Wide Association Study - Abstract
AIMS: Mitral valve prolapse (MVP) is a common valvular heart disease with a prevalence of >2% in the general adult population. Despite this high incidence, there is a limited understanding of the molecular mechanism of this disease, and no medical therapy is available for this disease. We aimed to elucidate the genetic basis of MVP in order to better understand this complex disorder.METHODS AND RESULTS: We performed a meta-analysis of six genome-wide association studies that included 4884 cases and 434 649 controls. We identified 14 loci associated with MVP in our primary analysis and 2 additional loci associated with a subset of the samples that additionally underwent mitral valve surgery. Integration of epigenetic, transcriptional, and proteomic data identified candidate MVP genes including LMCD1, SPTBN1, LTBP2, TGFB2, NMB, and ALPK3. We created a polygenic risk score (PRS) for MVP and showed an improved MVP risk prediction beyond age, sex, and clinical risk factors.CONCLUSION: We identified 14 genetic loci that are associated with MVP. Multiple analyses identified candidate genes including two transforming growth factor-β signalling molecules and spectrin β. We present the first PRS for MVP that could eventually aid risk stratification of patients for MVP screening in a clinical setting. These findings advance our understanding of this common valvular heart disease and may reveal novel therapeutic targets for intervention.KEY QUESTION: Expand our understanding of the genetic basis for mitral valve prolapse (MVP). Uncover relevant pathways and target genes for MVP pathophysiology. Leverage genetic data for MVP risk prediction.KEY FINDING: Sixteen genetic loci were significantly associated with MVP, including 13 novel loci. Interesting target genes at these loci included LTBP2, TGFB2, ALKP3, BAG3, RBM20, and SPTBN1. A risk score including clinical factors and a polygenic risk score, performed best at predicting MVP, with an area under the receiver operating characteristics curve of 0.677.TAKE-HOME MESSAGE: Mitral valve prolapse has a polygenic basis: many genetic variants cumulatively influence pre-disposition for disease. Disease risk may be modulated via changes to transforming growth factor-β signalling, the cytoskeleton, as well as cardiomyopathy pathways. Polygenic risk scores could enhance the MVP risk prediction.
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- 2022
20. Endocardial Scar-Homogenization With vs Without Epicardial Ablation in VT Patients With Ischemic Cardiomyopathy
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Sanghamitra Mohanty, Chintan Trivedi, Luigi Di Biase, John D. Burkhardt, Domenico Giovanni Della Rocca, Carola Gianni, Bryan MacDonald, Angel Mayedo, Sai Shishir Shetty, Will Zagrodzky, Faiz Baqai, Mohamed Bassiouny, G. Joseph Gallinghouse, Rodney Horton, Amin Al-Ahmad, and Andrea Natale
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Cicatrix ,Treatment Outcome ,Catheter Ablation ,Myocardial Ischemia ,Tachycardia, Ventricular ,Humans ,Cardiomyopathies ,Endocardium - Abstract
In this study, the authors investigated the ablation success of scar homogenization with combined (epicardial + endocardial) vs endocardial-only approach for ventricular tachycardia (VT) in patients with ischemic cardiomyopathy (ICM) at 5 years of follow-up.Best ablation approach to achieve long-term success rate in VT patients with ICM is not known yet.Consecutive ICM patients undergoing VT ablation at our center were classified into group 1: endocardial + epicardial scar homogenization and group 2: endocardial scar homogenization. Patients with previous open heart surgery were excluded. Epicardial ablation was performed despite being noninducible after endocardial ablation in all group 1 patients. All patients underwent bipolar substrate mapping with standard scar settings defined as normal tissue1.5 mV and severe scar 0.5 mV. Noninducibility of monomorphic VT was the procedural endpoint in both groups. Patients were followed up every 4 months for 5 years with implantable device interrogations.A total of 361 patients (group 1: n = 70 and group 2: n = 291) were included in the study. At 5 years, 81.4% (n = 57/70) patients from group 1 and 66.3% (n = 193/291) from group 2 were arrhythmia-free (P = 0.01) Of those patients, 26 of 57 (45.6%) and 172 of 193 (89.1%) from group 1 and group 2 respectively were on anti-arrhythmic drugs (AAD) (log-rank P0.001). After adjusting for age, sex, and obstructive sleep apnea, endo-epicardial scar homogenization was associated with a significant reduction in arrhythmia-recurrence (HR: 0.48; 95% CI: 0.27-0.86; P = 0.02).In this series of patients with ICM and VT, epicardial substrate was detected in all group 1 patients despite being noninducible after endocardial ablation. Moreover, combined endo-epicardial scar homogenization was associated with a significantly higher success rate at 5 years of follow-up and a substantially lower need for antiarrhythmic drugs after the procedure compared with the endocardial ablation alone.
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- 2022
21. Offline Odia handwritten character recognition with a focus on compound characters
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Raghunath Dey, Rakesh Chandra Balabantaray, and Sanghamitra Mohanty
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Computer Networks and Communications ,Hardware and Architecture ,Media Technology ,Software - Published
- 2022
22. Radiofrequency Energy Applications Targeting Significant Residual Leaks After Watchman Implantation
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Andrea Natale, Subramaniam C. Krishnan, Dhanunjaya Lakkireddy, Krishna Akella, J. David Burkhardt, Rodney Horton, Rakesh Gopinathannair, Giovanni B. Forleo, Javier Sanchez, Nicola Tarantino, Domenico G. Della Rocca, Ghulam Murtaza, Chintan Trivedi, Armando Del Prete, Amin Al-Ahmad, Jorge Romero, Carola Gianni, Shephal K. Doshi, G. Joseph Gallinghouse, Carlo Lavalle, Michele Magnocavallo, Mohamed Bassiouny, Sanghamitra Mohanty, Luigi Di Biase, Veronica Natale, and Philip J. Patel
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Leak ,Percutaneous ,medicine.diagnostic_test ,business.industry ,Atrial fibrillation ,Transesophageal echocardiogram ,medicine.disease ,Left atrial ,Occlusion ,Medicine ,Nuclear medicine ,business ,Stroke ,Radiofrequency energy - Abstract
Objectives The aim of this study was to evaluate the efficacy of radiofrequency (RF) energy applications targeting the atrial side of a significant residual leak in patients with acute and chronic evidence of incomplete percutaneous left atrial appendage (LAA) occlusion. Background RF applications have been proved to prevent recanalization of intracranial aneurysms after coil embolization, thereby favoring complete sealing. From a mechanistic standpoint, in vitro and in vivo experiments have demonstrated that RF promotes collagen deposition and tissue retraction. Methods Forty-three patients (mean age 75 ± 7 years mean CHA2DS2-VASc score 4.6 ± 1.4, mean HAS-BLED score 4.0 ± 1.1) with residual leaks ≥4 mm after Watchman implantation were enrolled. Procedural success was defined as complete LAA occlusion or presence of a mild or minimal (1- to 2-mm) peridevice leak on follow-up transesophageal echocardiography (TEE), which was performed approximately 45 days after the procedure. Results RF-based leak closure was performed acutely after Watchman implantation in 19 patients (44.2%) or scheduled after evidence of significant leaks on follow-up TEE in 24 others (55.8%). The median leak size was 5 mm (range: 4-7 mm). On average, 18 ± 7 RF applications per patient (mean maximum contact force 16 ± 3 g, mean power 44 ± 2 W, mean RF time 5.1 ± 2.5 minutes) were performed targeting the atrial edge of the leak. Post-RF median leak size was 0 mm (range: 0-1 mm). A very low rate (2.3% [n = 1]) of major periprocedural complications was observed. Follow-up TEE revealed complete LAA sealing in 23 patients (53.5%) and negligible residual leaks in 15 (34.9%). Conclusions RF applications targeting the atrial edge of a significant peri-Watchman leak may promote LAA sealing via tissue remodeling, without increasing complications. (RF Applications for Residual LAA Leaks [REACT]; NCT04726943 )
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- 2021
23. 1120 DIAGNOSTIC ACCURACY OF SMART GADGETS/WEREABLE DEVICES IN ATRIAL FIBRILLATION DETECTION: A METANALYSIS
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Giampaolo Vetta, Michele Magnocavallo, Antonio Parlavecchio, Carola Gianni, Marco Polselli, Francesco De Vuono, Luigi Pannone, Sanghamitra Mohanty, Fillippo Maria Cauti, Rodolfo Caminiti, Vincenzo Miraglia, Cinzia Monaco, Gian Battista Chierchia, Pietro Rossi, Luigi Di Biase, Stefano Bianchi, Carlo De Asmundis, Andrea Natale, and Domenico Giovanni Della Rocca
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Cardiology and Cardiovascular Medicine - Abstract
Introduction Atrial fibrillation (AF) is the most common sustained arrhythmia and an important risk factor for stroke and heart. Recent technology advances have allowed for heart rhythm monitoring using smart gadgets/wearable devices which can be used for early AF diagnosis. Hypothesis We performed a systemic review and meta-analysis to assess the accuracy of AF diagnosis by smart gadgets/wearable devices. Methods We systematically searched Medline, Embase and Cochrane electronic databases up to April 15th, 2022 for observational studies of the diagnostic accuracy of smartphone application, wrist-worn wearables and external devices in detecting AF. We calculated the area under the curve (AUC) of the summary receiver operating characteristic curves (SROC) and pooled sensitivities and specificities. Results A total of 79 studies were included enrolling 36903 patients, 66.3% male with average age of 68.3±8 years. In the overall analysis of all devices, the AUC was 0.99 (95% CI: 0.98-1.00), the sensitivity 95%(95% CI: 94–96%), the specificity 96%(95% CI: 96–97%). Wrist-worn wearables had AUC of 0.99 (95% CI: 0.98-1.00), the sensitivity 95%(9% CI: 92–97%), the specificity 97%(95% CI: 96–98%)(Figure 1A). Smartphone applications had AUC of 0.98 (95% CI: 0.96-0.99), the sensitivity 96%(9% CI: 94–97%), the specificity 96%(95% CI: 93–98%)(Figure 1B). External devices had AUC of 0.99 (95% CI: 0.98-1.00), the sensitivity 95%(9% CI: 93–97%), the specificity 96%(95% CI: 95–97%)(Figure 1C). Single-lead ECG had AUC of 0.99 (95% CI: 0.98- 1.00), the sensitivity 95%(9% CI: 92–96%), the specificity 96%(95% CI: 95–97%). PPG had AUC of 0.99 (95% CI: 0.98-1.00), the sensitivity 96%(9% CI: 95–97%), the specificity 97%(95% CI: 95–98%). Conclusions Smartphone application, wrist-worn devices and external devices with PPG and single-lead ECG have excellent diagnostic accuracy in atrial fibrillation diagnosis. Figure 1. Summary Receiver Operating Characteristic curves and Areas Under The Curve of Wrist-worn wearables (A), Smartphone applications (B) and External devices (C).
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- 2022
24. 1092 CATHETER ABLATION VERSUS MEDICAL THERAPY OF ATRIAL FIBRILLATION IN PATIENTS WITH HEART FAILURE: AN UPDATED SYSTEMATIC REVIEW AND META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS
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Michele Magnocavallo, Antonio Parlavecchio, Giampaolo Vetta, Carola Gianni, Marco Polselli, Francesco De Vuono, Luigi Pannone, Sanghamitra Mohanty, Fillippo Maria Cauti, Rodolfo Caminiti, Vincenzo Miraglia, Cinzia Monaco, Gian Battista Chierchia, Pietro Rossi, Luigi Di Biase, Stefano Bianchi, Carlo De Asmundis, Andrea Natale, and Domenico Giovanni Della Rocca
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Cardiology and Cardiovascular Medicine - Abstract
Background Atrial fibrillation (AF) and heart failure (HF) often coexist and syner-gistically contribute to an increased risk of hospitalization, stroke, and mortality. Objective: To compare the efficacy of catheter ablation (CA) versus medical therapy (MT) in HF patients with AF. Methods Electronic databases were queried for randomized controlled trials (RCTs) of CA versus MT of AF in patients with HF. Risk ratios (RRs), mean differences (MDs), and 95% confidence in-tervals (CIs) were measured using the Mantel–Haenszel method. Results A total of nine RCTs enrolling 2155 patients met the inclusion criteria. Compared to MT, CA led to a significant reduction in the composite of all-cause mortality and HF hospitalization (24.6% vs. 37.1%; RR: 0.65 (95% CI: 0.53–0.80); p < 0.0001) (Figure 1), all-cause mortality (8.8% vs. 13.6%; RR: 0.65 (95% CI: 0.51–0.82); p = 0.0005), HF hospitalization (15.4% vs. 22.4%; (RR: 0.67 (95% CI: 0.54–0.82); p = 0.0001), AF re-currence (31.8% vs. 77.0%; RR: 0.36 (95% CI: 0.24–0.54); p < 0.0001), and cardiovascular (CV) death (4.9% vs. 8.4%; RR: 0.58 (95% CI: 0.39–0.86); p = 0.007). CA improved the left ventricular ejection fraction (MD:4.76% (95% CI: 2.35–7.18); p = 0.0001), 6 min walk test (MD: 20.48 m (95% CI: 10.83–30.14); p < 0.0001), peak oxygen consumption (MD: 3.1 2mL/kg/min (95% CI: 1.01–5.22); p = 0.004), Minnesota Living with Heart Failure Questionnaire score (MD: −6.98 (95% CI: −12–03, −1.93); p = 0.007), and brain natriuretic peptide levels (MD:−133.94 pg/mL (95% CI: −197.33, −70.55); p < 0.0001). Conclusions In HF patients, AF catheter ablation was superior to MT in re-ducing CV and all-cause mortality. Further significant benefits occurred within the ablation group in terms of HF hospitalizations, AF recurrences, the systolic function, exercise capacity, and quality of life. Figure 1: Forest plot displaying a decrease in the composite endpoint in patients with AF and HF undergoing CA versus MT.
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- 2022
25. S2S system for voice oriented tourism information delivery in Indian context.
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Sanghamitra Mohanty and Basanta Kumar Swain
- Published
- 2013
- Full Text
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26. PO-03-160 TRANS-FABRIC APPROACH TO ACHIEVE PERI-DEVICE LEAK CLOSURE FOLLOWING INCOMPLETE WATCHMAN LEFT ATRIAL APPENDAGE OCCLUSION
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Carola Gianni, Rodney P. Horton, Domenico G. Della Rocca, Vincenzo Mirco La Fazia, Sanghamitra Mohanty, Amin Al-Ahmad, Mohamed A. Bassiouny, J. David Burkhardt, G. Joseph Gallinghouse, Patrick M. Hranitzky, Javier E. Sanchez, and Andrea Natale
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
27. PO-05-035 FASCICULAR SUBSTRATE MODIFICATION TO TREAT HUMAN VENTRICULAR FIBRILLATION: A MULTICENTER STUDY
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Weeranun D. Bode, Sanghamitra Mohanty, John D. Burkhardt, Prem G. Torlapati, Carola Gianni, Vincenzo Mirco La Fazia, Domenico G. Della Rocca, Mohamed Bassiouny, G. Joseph Gallinghouse, Rodney P. Horton, Amin Al-Ahmad, Xiaodong Zhang, Fengwei Zou, Luigi Di Biase, Pasquale Santangeli, and Andrea Natale
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
28. AB-452672-4 POINT-BY-POINT PULSED FIELD ABLATION USING A MULTIMODALITY GENERATOR: COMPARISON WITH RADIOFREQUENCY ABLATION IN REMAPPED CHRONIC SWINE HEARTS
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Luigi Di Biase, jacopo Marazzato, Fengwei Zou, Aung N. Lin, Vito Grupposo, Jennifer Maffre, Salman Farshchi-Heydari, Tushar Sharma, Christopher Beekler, Andrea Natale, Sanghamitra Mohanty, Assaf Govari, and Xiaodong Zhang
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
29. PO-01-102 RISK FACTORS FOR PROGRESSION OF PAROXYSMAL TO PERSISTENT ATRIAL FIBRILLATION FOLLOWING PV ISOLATION
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Sanghamitra Mohanty, Carola Gianni, Bryan MacDonald, Angel Quintero Mayedo, Vincenzo Mirco La Fazia, Prem Geeta Torlapati, Domenico G. Della Rocca, Mohamad Bassiouny, G. Joseph Gallinghouse, John D. Burkhardt, Rodney P. Horton, Amin Al-Ahmad, Xiaodong Zhang, Fengwei Zou, Luigi Di Biase, and Andrea Natale
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
30. CE-452775-1 PREDICTORS FOR SUDDEN CARDIAC DEATH AND SUSTAINED VENTRICULAR ARRHYTHMIAS AMONG HIGH-RISK PATIENTS WITH ARRHYTHMOGENIC MITRAL VALVE PROLAPSE SYNDROME
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Apurba Chakrabarti, Fatima Ezzeddine, John R. Giudicessi, Francesca N. Delling, Shalini Dixit, Yoo J. Lee, Daniele Muser, Silvia Magnani, Aniek Van Wijngaarden, Nina Ajmone Marsan, Marc A. Miller, Jonathan Gandhi, Maria Trivieri, Jonaz Font, Raphael Martins, James A. McCaffrey, Pasquale Santangeli, Francis E. Marchlinski, Himal Chapagain, Don Mathew, Krishna Kancharla, Faisal F. Syed, Ahad Abid, Lukasz Cerbin, Wendy S. Tzou, Lohit Garg, Domenico G. Della Rocca, Andrea Natale, Sanghamitra Mohanty, Seth H. Sheldon, Ling Kuo, Kristina H. Haugaa, Eivind W. Aabel, Andres Enriquez, Shingo Maeda, Amrish Deshmukh, Michael Ghannam, Frank M. Bogun, Michael J. Ackerman, and Jackson J. Liang
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
31. PO-03-168 IMPORTANCE OF COMPRESSION RATE DURING LEFT ATRIAL APPENDAGE CLOSURE WITH WATCHMAN FLX
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Vincenzo Mirco La Fazia, Carola Gianni, Sanghamitra Mohanty, Bryan MacDonald, Angel Quintero Mayedo, Domenico G. Della Rocca, Nethuja Salagundla, Prem Geeta Torlapati, Mohamed A. Bassiouny, G. Joseph Gallinghouse, J. David Burkhardt, Rodney P. Horton, Amin Al-Ahmad, Luigi Di Biase, and Andrea Natale
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
32. AB-452663-3 DISTRIBUTION OF TRIGGERS IN THE LEFT ATRIAL POSTERIOR WALL IN AF PATIENTS UNDERGOING CATHETER ABLATION
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Sanghamitra Mohanty, Pasquale Santangeli, Carola Gianni, Bryan MacDonald, Angel Quintero Mayedo, Vincenzo Mirco La Fazia, Prem Geeta Torlapati, Domenico G. Della Rocca, Rami Helmy, mohanad Elchouemi, Mohamad Bassiouny, G. Joseph Gallinghouse, John D. Burkhardt, Rodney P. Horton, Amin Al-Ahmad, Xiaodong Zhang, Fengwei Zou, Luigi Di Biase, and Andrea Natale
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
33. PO-01-002 ASSOCIATION OF NOVEL COMBINED GENETIC POLYMORPHISMS WITH RISK OF THROMBOEMBOLISM IN PATIENTS WITH ATRIAL FIBRILLATION
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Sanghamitra Mohanty, Amitabh C. Pandey, Bryan MacDonald, Angel Quintero Mayedo, Carola Gianni, Prem Geeta Torlapati, Vincenzo Mirco La Fazia, Domenico G. Della Rocca, Mohamad Bassiouny, G. Joseph Gallinghouse, John D. Burkhardt, Rodney P. Horton, Amin Al-Ahmad, Kristi C. Pangborn, and Andrea Natale
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
34. PO-01-089 ARRHYTHMIA PROFILE IN FEMALE ATRIAL FIBRILLATION PATIENTS WITH VERSUS WITHOUT AUTOIMMUNE DISORDERS
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Sanghamitra Mohanty, Carola Gianni, Bryan MacDonald, Angel Quintero Mayedo, Prem Geeta Torlapati, Vincenzo Mirco La Fazia, Domenico G. Della Rocca, Mohamad Bassiouny, G. Joseph Gallinghouse, John D. Burkhardt, Rodney P. Horton, Amin Al-Ahmad, Xiaodong Zhang, Fengwei Zou, Luigi Di Biase, and Andrea Natale
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Physiology (medical) ,Cardiology and Cardiovascular Medicine - Published
- 2023
35. Reply
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Sanghamitra Mohanty and Andrea Natale
- Published
- 2023
36. Half-Dose Direct Oral Anticoagulation Versus Standard Antithrombotic Therapy After Left Atrial Appendage Occlusion
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Nicola Tarantino, J. David Burkhardt, Armando Del Prete, Carlo Lavalle, Carola Gianni, Giovanni B. Forleo, G. Joseph Gallinghouse, Dhanunjaya Lakkireddy, Veronica Natale, Domenico G. Della Rocca, David F. Briceno, Chintan Trivedi, Mohamed Bassiouny, Amin Al-Ahmad, Andrea Natale, Sanghamitra Mohanty, Javier Sanchez, Douglas N. Gibson, Jorge Romero, Luigi Di Biase, Michele Magnocavallo, Rodney Horton, and Christoffel J. van Niekerk
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medicine.medical_specialty ,Aspirin ,business.industry ,medicine.medical_treatment ,Watchman ,antiplatelet therapy ,aspirin ,left atrial appendage ,oral anticoagulation ,stroke ,thromboembolism ,medicine.disease ,Thrombosis ,Left atrial appendage occlusion ,Interquartile range ,Heart failure ,Internal medicine ,Antithrombotic ,medicine ,Cardiology ,Liver function ,Cardiology and Cardiovascular Medicine ,business ,Stroke ,medicine.drug - Abstract
Objectives This study evaluated the long-term efficacy of a standard antithrombotic strategy versus half-dose direct oral anticoagulation (DOAC) after Watchman implantation. Background No consensus currently exists on the selection of the most effective antithrombotic strategy to prevent device-related thrombosis (DRT) in patients undergoing endocardial left atrial appendage closure. Methods After successful left atrial appendage closure, consecutive patients were prescribed a standard antithrombotic strategy (SAT) or long-term half-dose DOAC (hdDOAC). The primary composite endpoint was DRT and thromboembolic (TE) and bleeding events. Results Overall, 555 patients (mean age 75 ± 8 years, 63% male; median CHA2DS2-VASc [congestive heart failure, hypertension, age ≥75 years, diabetes mellitus, prior stroke or transient ischemic attack or thromboembolism, vascular disease, age 65-74 years, sex category] score 4 [interquartile range (IQR): 3-6]; median HAS-BLED [hypertension, abnormal renal or liver function, stroke, bleeding, labile international normalized ratio, elderly, drugs or alcohol] score 3 [IQR: 2-4]) were included. Patients were categorized into 2 groups (SAT: n = 357 vs hdDOAC: n = 198). Baseline clinical characteristics were similar between groups. The median follow-up duration was 13 months (IQR: 12-15 months). DRT occurred in 12 (2.1%) patients, all in the SAT group (3.4% vs 0.0%; log-rank P = 0.009). The risk of nonprocedural major bleeding was significantly more favorable in the hdDOAC group (0.5% vs. 3.9%; log-rank P = 0.018). The rate of the primary composite endpoint of DRT and TE and major bleeding events was 9.5% in SAT patients and 1.0% in hdDOAC patients (HR: 9.8; 95% CI: 2.3-40.7; P = 0.002). Conclusions After successful Watchman implantation, long-term half-dose DOAC significantly reduced the risk of the composite endpoint of DRT and TE and major bleeding events compared with a standard, antiplatelet-based, antithrombotic therapy.
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- 2021
37. Isolated Word-Based Spoken Dialogue System Using Odia Phones
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Basanta Kumar Swain, Sanghamitra Mohanty, and Chiranji Lal Chowdhary
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General Computer Science ,Computer science ,business.industry ,Artificial intelligence ,business ,computer.software_genre ,computer ,Natural language processing ,Word (computer architecture) - Abstract
Aims: To develop Spoken Dialogue System in Indian language with Voice response and voice based biometric feature. Backgrounds: Most of research works in spoken dialogue system are carried out in U.S. and Europe and currently, few government funding projects on spoken dialogue system (SDS) are carried out in Indian academic institutes. Objective: We have tried to use our developed spoken language system to eliminate the desktop clutter. It is very normal tendency of computer users to place the most frequently used files, folders, applications shortcuts on their computer’s desktop. Cluttering of desktop not only slows down the productivity of computer but also looks very messy and very difficult to find files as well. Therefore, we tried to use the spoken dialogue system to eliminate the desktop clutters in painless manner and the services are provided to the computer users by opening the files, folders and frequently used application of users in spoken command mode with voice response. Methods: In this research article, we have attempted to utilize an Indian spoken language for communication with spoken dialogue system. We have adopted a statistical machine learning algorithm called Hidden Markov Model for development of speech recognition engine. The speaker verification module is developed using fuzzy c-means algorithm. Speech synthesis is carried out using diphone corpus. Results: The speaker verification module has yielded satisfactory results with average accuracy of 66.2% using FCM algorithm. It is also seen that fundamental frequency and formant frequency carry the distinctive characteristics of speaker verification over Indian spoken language. The vital module of SDS i.e. speech recognition engine is developed by using HMM, a statistical algorithm. It is observed that word accuracy of ASR engine is 78.22 % and 62.31 % for seen and unseen users respectively. The voice response is given to the user in terms of synthesized speech. The audio quality of synthesized speech is measured using the MOS test. The MOS test value is found as 3.8 and 3.6 over two distinct groups of listeners. Conclusion: In this research paper, we have developed a spoken dialogue system based on Odia language phone set. We have integrated speaker verification module in order to provide additional biometric based security.
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- 2021
38. Intracardiac echocardiography‐ versus transesophageal echocardiography‐guided left atrial appendage occlusion with Watchman FLX
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Domenico G. Della Rocca, Carola Gianni, Rodney Horton, Mohamed Bassiouny, J. David Burkhardt, Javier Sanchez, Amin Al-Ahmad, G. Joseph Gallinghouse, Sanghamitra Mohanty, Patrick Hranitzky, and Andrea Natale
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Cardiac Catheterization ,medicine.medical_specialty ,Intracardiac echocardiography ,business.industry ,medicine.medical_treatment ,Fluoroscopy dose ,medicine.disease ,Left atrial appendage occlusion ,Thrombosis ,Cohort Studies ,Treatment Outcome ,Embolism ,Physiology (medical) ,Internal medicine ,Atrial Fibrillation ,Cardiology ,Humans ,Medicine ,Atrial Appendage ,Cardiology and Cardiovascular Medicine ,business ,human activities ,Echocardiography, Transesophageal ,Ultrasonography, Interventional - Abstract
Introduction Watchman FLX has been recently approved for left atrial appendage occlusion (LAAO) in the US. Intracardiac echocardiography (ICE) - which is already commonly used to guide trans-septal access - can serve as an alternative to TEE, simplifying the procedure and reducing associated costs. Herein, we report our experience with ICE-guided LAAO with Watchman FLX. Methods and results This cohort study included the first 190 consecutive patients who underwent LAAO with Watchman FLX in our center. LAAO was successful in all patients without significant peri-procedural, device-related complications in either group. Compared to TEE, we observed a significant reduction in procedural times when using ICE. In addition, there was a potentially clinically relevant reduction in fluoroscopy dose, mainly secondary to fewer cine acquisition runs. At follow-up, no cases of device embolism were noted, whereas the rate of device-related thrombosis and peri-device leaks were comparable between groups. Conclusion ICE-guided LAAO with Watchman FLX is safe and feasible, with a significant reduction in procedural time and potential reduction in fluoroscopy dose when compared to TEE.
- Published
- 2021
39. Adaptive and Iterative Wiener Filter for Oriya Speech Processing Applications.
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Sanghamitra Mohanty and Basanta Kumar Swain
- Published
- 2011
- Full Text
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40. Prevalence of atrial fibrillation and procedural outcome in patients undergoing catheter ablation for premature ventricular complexes
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Fengwei Zou, Luigi Di Biase, Sanghamitra Mohanty, Xiaodong Zhang, Sai Shishir Shetty, Carola Gianni, Domenico G. Della Rocca, Aung Lin, Roberto Arosio, Marco Schiavone, Giovanni Forleo, Angel Mayedo, Bryan MacDonald, Amin Al‐Ahmad, Mohamed Bassiouny, G. Joseph Gallinghouse, Rodney Horton, John D. Burkhardt, and Andrea Natale
- Subjects
Physiology (medical) ,Cardiology and Cardiovascular Medicine - Abstract
Atrial fibrillation (AF) and premature ventricular complexes (PVC) are common arrhythmias. We aimed to investigate AF prevalence in patients with PVC and its impact on PVC ablation outcomes.Consecutive patients undergoing PVC ablation at a single institution between 2016 and 2019 were included and prospectively followed for 2 years. Patients with severe valvular heart disease, hyperthyroidism, malignancy, alcohol use disorder and advanced renal/hepatic diseases were excluded. Twelve-lead electrocardiograms were used to diagnose AF and assess PVC morphology. All PVCs were targeted for ablation using 4-mm irrigated-tip catheters at standardized radiofrequency power guided by 3-D mapping and intracardiac echocardiography. Patients were followed with remote monitoring, device interrogations and office visits every 6 months for 2 years. Detection of any PVCs in follow-up was considered as recurrence.A total of 394 patients underwent PVC ablation and 96 (24%) had concurrent AF. Patients with PVC and AF were significantly older (68.2 ± 10.8 vs. 58.3 ± 15.8 years, p .001), had lower LV ejection fraction (43.3 ± 13.3% vs. 49.6 ± 12.4%, p .001), higher CHAAF was documented in 1/4 of patients undergoing PVC ablation and was associated with lower procedural success at long-term follow-up. This was likely attributed to older age, worse LV function and higher prevalence of multiple PVC morphologies in patients with concurrent AF.
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- 2022
41. Catheter Ablation versus Medical Therapy of Atrial Fibrillation in Patients with Heart Failure: An Updated Systematic Review and Meta-Analysis of Randomized Controlled Trials
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Michele Magnocavallo, Antonio Parlavecchio, Giampaolo Vetta, Carola Gianni, Marco Polselli, Francesco De Vuono, Luigi Pannone, Sanghamitra Mohanty, Filippo Maria Cauti, Rodolfo Caminiti, Vincenzo Miraglia, Cinzia Monaco, Gian-Battista Chierchia, Pietro Rossi, Luigi Di Biase, Stefano Bianchi, Carlo de Asmundis, Andrea Natale, Domenico Giovanni Della Rocca, Clinical sciences, Faculty of Medicine and Pharmacy, and Heartrhythmmanagement
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Medical therapy ,atrial fibrillation ,heart failure ,catheter ablation ,medical therapy ,randomized controlled trials ,recurrence ,Recurrence ,Atrial Fibrillation ,Catheter Ablation ,General Medicine ,Cardiology and Cardiovascular Medicine ,Randomized Controlled Trials - Abstract
Background: Atrial fibrillation (AF) and heart failure (HF) often coexist and synergistically contribute to an increased risk of hospitalization, stroke, and mortality. Objective: To compare the efficacy of catheter ablation (CA) versus medical therapy (MT) in HF patients with AF. Methods: Electronic databases were queried for randomized controlled trials (RCTs) of CA versus MT of AF in patients with HF. Risk ratios (RRs), mean differences (MDs), and 95% confidence intervals (CIs) were measured using the Mantel–Haenszel method. Results: A total of nine RCTs enrolling 2155 patients met the inclusion criteria. Compared to MT, CA led to a significant reduction in the composite of all-cause mortality and HF hospitalization (24.6% vs. 37.1%; RR: 0.65 (95% CI: 0.53–0.80); p < 0.0001), all-cause mortality (8.8% vs. 13.6%; RR: 0.65 (95% CI: 0.51–0.82); p = 0.0005), HF hospitalization (15.4% vs. 22.4%; (RR: 0.67 (95% CI: 0.54–0.82); p = 0.0001), AF recurrence (31.8% vs. 77.0%; RR: 0.36 (95% CI: 0.24–0.54); p < 0.0001), and cardiovascular (CV) death (4.9% vs. 8.4%; RR: 0.58 (95% CI: 0.39–0.86); p = 0.007). CA improved the left ventricular ejection fraction (MD:4.76% (95% CI: 2.35–7.18); p = 0.0001), 6 min walk test (MD: 20.48 m (95% CI: 10.83–30.14); p < 0.0001), peak oxygen consumption (MD: 3.1 2mL/kg/min (95% CI: 1.01–5.22); p = 0.004), Minnesota Living with Heart Failure Questionnaire score (MD: −6.98 (95% CI: −12–03, −1.93); p = 0.007), and brain natriuretic peptide levels (MD:−133.94 pg/mL (95% CI: −197.33, −70.55); p < 0.0001). Conclusions: In HF patients, AF catheter ablation was superior to MT in reducing CV and all-cause mortality. Further significant benefits occurred within the ablation group in terms of HF hospitalizations, AF recurrences, the systolic function, exercise capacity, and quality of life.
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- 2022
- Full Text
- View/download PDF
42. Catheter Ablation for Atrial Fibrillation in Adult Congenital Heart Disease
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Jack R. Griffiths, Udi Nussinovitch, Jackson J. Liang, Richard Sims, Zachary T. Yoneda, Hannah M. Bernstein, Mohan N. Viswanathan, Paul Khairy, Uma N. Srivatsa, David S. Frankel, Francis E. Marchlinski, Amneet Sandhu, M. Benjamin Shoemaker, Sanghamitra Mohanty, John D. Burkhardt, Andrea Natale, Dhanunjaya Lakireddy, Natasja M.S. De Groot, Edward P. Gerstenfeld, Jeremy P. Moore, Pablo Ávila, Sabine Ernst, Duy T. Nguyen, and Cardiology
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Adult ,Heart Defects, Congenital ,Male ,Transposition of Great Vessels ,Middle Aged ,Treatment Outcome ,Pulmonary Veins ,Physiology (medical) ,Atrial Fibrillation ,Catheter Ablation ,Humans ,Female ,Registries ,Cardiology and Cardiovascular Medicine ,Child ,Anti-Arrhythmia Agents ,Aged ,Retrospective Studies - Abstract
Background: Data on atrial fibrillation (AF) ablation and outcomes are limited in patients with congenital heart disease (CHD). We aimed to investigate the characteristics of patients with CHD presenting for AF ablation and their outcomes. Methods: A multicenter, retrospective analysis was performed of patients with CHD undergoing AF ablation between 2004 and 2020 at 13 participating centers. The severity of CHD was classified using 2014 Pediatric and Congenital Electrophysiology Society/Heart Rhythm Society guidelines. Clinical data were collected. One-year complete procedural success was defined as freedom from atrial tachycardia or AF in the absence of antiarrhythmic drugs or including previously failed antiarrhythmic drugs (partial success). Results: Of 240 patients, 127 (53.4%) had persistent AF, 62.5% were male, and mean age was 55.2±13.3 years. CHD complexity categories included 147 (61.3%) simple, 68 (28.3%) intermediate, and 25 (10.4%) severe. The most common CHD type was atrial septal defect (n=78). More complex CHD conditions included transposition of the great arteries (n=14), anomalous pulmonary veins (n=13), tetralogy of Fallot (n=8), cor triatriatum (n=7), single ventricle physiology (n=2), among others. The majority (71.3%) of patients had trialed at least one antiarrhythmic drug. Forty-six patients (22.1%) had reduced systemic ventricular ejection fraction Conclusions: AF ablation in CHD was safe and resulted in AF control in a majority of patients, regardless of complexity. Future work should address the most appropriate ablation targets in this challenging population.
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- 2022
43. A Hybrid Approach for Transliteration of Name Entities.
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Rakesh Chandra Balabantaray, Sanghamitra Mohanty, and R. K. Das
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- 2009
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44. An Efficient Bilingual Optical Character Recognition (English-Oriya) System for Printed Documents.
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Sanghamitra Mohanty, Himadri Nandini Dasbebartta, and Tarun Kumar Behera
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- 2009
- Full Text
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45. A Hybrid Oriya Named Entity Recognition System: Integrating HMM with MaxEnt.
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Sitanath Biswas, Sanghamitra Mohanty, and Smita Prava Mishra
- Published
- 2009
- Full Text
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46. 3-Dimensional Intracardiac Echocardiography-Guided Percutaneous Closure of a Residual Leak via Radiofrequency Applications After LAAO
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Domenico G. Della Rocca, Carola Gianni, Michele Magnocavallo, Sanghamitra Mohanty, Amin Al-Ahmad, David R. Tschopp, J. David Burkhardt, Luigi Di Biase, Rodney P. Horton, Andrea Natale, and Heartrhythmmanagement
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Echocardiography, Transesophageal/methods ,Atrial Fibrillation ,Atrial Appendage/diagnostic imaging ,Humans ,heart - Published
- 2022
47. Improved Survival in Patients with Atrial Fibrillation and Heart Failure Undergoing Catheter Ablation Compared to Medical Treatment: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
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Jorge Romero, Mohamed Gabr, Isabella Alviz, David Briceno, Juan Carlos Diaz, Daniel Rodriguez, Kavisha Patel, Dalvert Polanco, Chintan Trivedi, Sanghamitra Mohanty, Domenico Della Rocca, Dhanunjaya Lakkireddy, Andrea Natale, and Luigi Di Biase
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Male ,Heart Failure ,Stroke Volume ,Middle Aged ,Ventricular Function, Left ,Treatment Outcome ,Physiology (medical) ,Atrial Fibrillation ,Catheter Ablation ,Humans ,Female ,Cardiology and Cardiovascular Medicine ,Anti-Arrhythmia Agents ,Aged ,Randomized Controlled Trials as Topic - Abstract
Increasing evidence has suggested improved outcomes in atrial fibrillation (AF) patients with heart failure (HF) undergoing catheter ablation (CA) as compared to medical therapy. We sought to investigate the benefit of CA on outcomes of patients with AF and HF as compared to medical therapy.A systematic review of PubMed, Embase, and Cochrane Central Register of Clinical Trials was performed for clinical studies evaluating the benefit of CA for patients with AF and HF. Primary endpoint was all-cause mortality. Secondary endpoints included atrial-arrhythmia recurrence and improvement in left ventricular ejection fraction (LVEF). Eight randomized controlled trials were included with a total of 2121 patients (mean age: 65 ± 5 years; 72% male). Mean follow-up duration was 32.9 ± 14.5 months. All-cause mortality in patients who underwent CA was significantly lower than in the medical treatment group (8.8% vs. 13.5%, RR 0.65, 95% confidence interval [CI] 0.51-0.83, p = .0005). A 35% relative risk reduction and 4.7% absolute risk reduction in all-cause mortality was observed with CA. Rates of all-atrial arrhythmia recurrence were significantly lower in the CA group (39.9% vs. 69.6%, RR: 0.55, 95% CI: 0.40-0.76, p = .0003). Improvement in LVEF was significantly higher in patients undergoing CA (+9.4 ± 7.6%) as compared to conventional treatment (+3.3 ± 8%) (mean difference 6.2, 95% CI: 3.6-8.8, p .00001).CA for AF in patients with HF decreases all-cause mortality, improves all-atrial arrhythmia recurrence rate and LVEF when compared to medical management. CA should be considered the treatment of choice to improve survival in this select group of patients. Nonetheless, the benefit of CA in patients with severely reduced ejection fraction and New York Heart Association class IV HF has not been clearly elucidated.
- Published
- 2022
48. Sliding window based off-line handwritten text recognition using edit distance
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Sanghamitra Mohanty, Raghunath Dey, and Rakesh Chandra Balabantaray
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Computer Networks and Communications ,Computer science ,business.industry ,Feature extraction ,020207 software engineering ,Pattern recognition ,02 engineering and technology ,Text recognition ,Optical character recognition ,computer.software_genre ,Domain (software engineering) ,Hardware and Architecture ,Sliding window protocol ,0202 electrical engineering, electronic engineering, information engineering ,Media Technology ,Edit distance ,Artificial intelligence ,business ,computer ,Software ,Off line ,MNIST database - Abstract
A significant issue in the domain of optical character recognition is handwritten text recognition. Here, two novel feature extraction techniques are proposed using a fixed-size sliding window, and also an edit distance-based architecture is suggested to recognize the off-line characters. These feature extraction techniques are designed for text recognition from the text images. It’s an off-line approach, that is why data from scanned documents or natural scenes are taken as input. In this paper, the freely available datasets, known as Chars74k and MNIST for English alphabets and digits are used. The proposed feature extraction technique for the off-line text images of characters as well as numbers generates the features successfully. The impact of the proposed method on text recognition accuracy is computed using several state-of-the-art machine learning algorithms. After that, these are again compared with the proposed Edit distance based text recognition system with the help of different conducted experiments. The proposed model has reached an accuracy of more than 96% for the MNIST dataset.
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- 2021
49. Role of immunosuppressive therapy in the management refractory postprocedural pericarditis
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Rakesh Gopinathannair, Dhanunjaya Lakkireddy, Mohit K. Turagam, Sanghamitra Mohanty, Domenico G. Della Rocca, Jalaj Garg, Andrea Natale, Luigi Di Biase, B Narasimhan, and Jorge Romero
- Subjects
medicine.medical_specialty ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,03 medical and health sciences ,Pericarditis ,0302 clinical medicine ,Refractory ,Prednisone ,Physiology (medical) ,Internal medicine ,medicine ,Humans ,030212 general & internal medicine ,Adverse effect ,Retrospective Studies ,business.industry ,Immunosuppression ,medicine.disease ,Regimen ,Catheter ,Methotrexate ,Treatment Outcome ,Cardiology and Cardiovascular Medicine ,business ,Immunosuppressive Agents ,medicine.drug - Abstract
Objective To assess the safety and efficacy of a novel immunosuppressive regimen-combination Methotrexate/Prednisone (cMtx/P)-in the management of severe refractory rPPP. Methods In this multicenter, nonrandomized, retrospective, observational study, 408 consecutive patients diagnosed with persistent rPPP between 2017 and 19 were included. Patients with refractory symptoms despite 3 months of conventional therapy were initiated on a 4-week regimen of oral steroids. Persistence of symptoms at this point, that is, rPPP (n = 25; catheter based = 18, open surgical = 7) prompted therapy with Methotrexate (7.5-15 mg weekly) with folate supplementation along with low dose prednisone (5 mg PO) for a further 3 months. Patients were followed for a total of 11.3 ± 1.8 months. Results Treatment refractory rPPP occurred in 6.1% of the study population prompting immunosuppressive therapy with cMtx/P. All patients demonstrated complete symptom resolution following 3 months of treatment with an 85% decline in clinically significant pericardial effusions. One patient developed recurrent pericarditis during the 11-month follow-up. Therapy was well tolerated with no significant drug related adverse effects. Conclusion cMtx/P therapy is a safe and effective adjunct in the management of rPPP refractory to standard therapy.
- Published
- 2021
50. Predictors of recurrent atrial fibrillation following catheter ablation
- Author
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Chintan Trivedi, Carola Gianni, Sanghamitra Mohanty, Domenico G. Della Rocca, Bryan MacDonald, Angel Mayedo, and Andrea Natale
- Subjects
medicine.medical_specialty ,medicine.medical_treatment ,Recurrent atrial fibrillation ,Catheter ablation ,Comorbidity ,030204 cardiovascular system & hematology ,03 medical and health sciences ,0302 clinical medicine ,Recurrence ,Risk Factors ,Fibrosis ,Internal medicine ,Atrial Fibrillation ,Internal Medicine ,medicine ,Humans ,Heart Atria ,cardiovascular diseases ,030212 general & internal medicine ,business.industry ,Atrial fibrillation ,General Medicine ,medicine.disease ,Treatment Outcome ,Lifestyle factors ,Echocardiography ,Catheter Ablation ,cardiovascular system ,Cardiology ,Cardiology and Cardiovascular Medicine ,business - Abstract
Atrial fibrillation (AF) is a complex and multi-factorial rhythm disorder. Catheter ablation is widely used for the management of AF. However, it is limited by relapse of the arrhythmia necessitating repeat procedures.This review aims to discuss the predictors of post-ablation recurrent AF including age, gender, genetic predisposition, AF type and duration, comorbidities, lifestyle factors, echocardiographic parameters of heart chambers, left atrial fibrosis and ablation strategies and targets. An extensive literature search was undertaken on PubMed and Google Scholar to obtain full texts of relevant AF-related articles.Maintenance of stable sinus rhythm is the main intended outcome of AF ablation. Therefore, it is very crucial to identify the risk factors that may influence the ablation success. Most of these predictors such as comorbidities, ablation strategy and targets and lifestyle factors are either reversible or modifiable. Thus, not only the awareness of these known risk factors by both patients and their physicians but also future research to identify the unknown predictors are critical to optimize care in this multi-faceted morbidity.
- Published
- 2021
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