Publications by authors named "Prasant Mohanty"

Diabetes, a significant global health crisis, is primarily driven in India by unhealthy diets and sedentary lifestyles, with rapid urbanization amplifying these effects through convenience-oriented living and limited physical activity opportunities, underscoring the need for advanced preventative strategies and technology for effective management. This study integrates Shapley Additive explanations (SHAPs) into ensemble machine learning models to improve the accuracy and efficiency of diabetes predictions. By identifying the most influential features using SHAP, this study examined their role in maintaining high predictive performance while minimizing computational demands.

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Background: Acute pericarditis is a known complication of ablation procedures for atrial fibrillation (AF).

Objectives: This study aimed to evaluate the benefits of colchicine monotherapy in terms of reducing the risk of pericarditis and related hospitalization rate in AF patients undergoing catheter ablation.

Methods: Consecutive AF patients undergoing first catheter ablation were classified into 3 groups based on their colchicine use: Group 1: no colchicine; group 2: colchicine from 7 days before to 1 month after ablation; and group 3: colchicine from the day of the procedure to 1 month after.

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Aims: This study aimed to examine the clinical benefits of targeted ablation of all Premature ventricular complex (PVC) morphologies vs. predominant PVC only.

Methods And Results: A 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.

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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.

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Article Synopsis
  • Substrate catheter ablation is a common treatment for scar-related ventricular tachycardia (VT) in patients with ischemic cardiomyopathy, aiming to eliminate abnormal electrical signals within heart scars.
  • A study of 134 patients revealed that those on amiodarone therapy had better procedural outcomes, requiring less ablation time and fewer epicardial procedures compared to those not on the medication.
  • Over a follow-up period of nearly two years, patients not on amiodarone experienced a higher recurrence rate of ventricular arrhythmias, indicating that amiodarone may help maintain long-term success post-ablation.
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Background: Left atrial appendage electrical isolation (LAAEI) has been proposed for the treatment of nonparoxysmal atrial fibrillation (AF). The long-term clinical outcomes of this approach remain unclear. The objective of our study was to investigate the incremental benefit and safety of LAAEI in patients undergoing catheter ablation for nonparoxysmal AF.

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Background: Direct oral anticoagulants (DOACs) are contraindicated in patients with atrial fibrillation (AF) and mechanical cardiac valves. However, safety and efficacy are controversial in patients with biological cardiac valves.

Objective: We report the safety and feasibility of periprocedural and long-term treatment with DOACs in patients with biological valves undergoing ablation for AF.

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Background: Thromboembolic stroke is a rare but devastating consequence of atrial fibrillation (AF) ablation. Transesophageal echocardiography (TEE) is recommended to rule out left atrial appendage thrombus; however, its use is variable.

Objective: The purpose of this study was to assess whether TEE is mandatory in patients undergoing AF ablation on uninterrupted direct oral anticoagulants (DOACs).

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Background: Pulmonary vein isolation (PVI) is the mainstay of catheter ablation (CA) for paroxysmal atrial fibrillation (AF). However, for persistent and long-standing persistent AF, there are no established strategies to improve the success rate of CA. Despite studies indicating that prophylactic cavotricuspid isthmus (CTI) ablation provides no or limited incremental benefit in patients with AF, it is still routinely performed worldwide.

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The CABANA trial reported that catheter ablation, when compared with drug therapy, did not significantly reduce the primary composite end point of death, disabling stroke, serious bleeding, or cardiac arrest in patients with atrial fibrillation. Despite multiple limitations in study design, the CABANA trial still confirmed that catheter ablation of atrial fibrillation led to clinically important and significant improvements in quality of life at 12 months without increasing the risk of complications.

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Background: Atrial fibrillation (AF) triggers within the coronary sinus (CS)/great cardiac vein (GCV) and the left atrial appendage (LAA) have been recognized as nonpulmonary vein triggers of AF.

Objective: The aim of this study was to describe an electrical connection between the LAA and CS/GCV and its importance in achieving LAA electrical isolation (LAAEI).

Methods: A total of 488 consecutive patients undergoing catheter ablation for persistent or long-standing persistent AF who showed firing from the LAA and/or from the CS/GCV were enrolled in this multicenter prospective study.

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Bermekimab is a true human monoclonal antibody that targets interleukin-1alpa (IL-1α), an inflammation-mediating alarmin. IL-1 receptor antagonist (IL-1Ra) is a natural molecule that blocks IL-1α activity by occupying the IL-1 receptor. The effect of endogenous IL-1Ra levels on the effectiveness of bermekimab is unknown.

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Introduction: We investigated the feasibility to proactively stimulate subsequent closure of a patent foramen ovale (PFO) by injuring (mechanical trauma or radiofrequency [RF] energy) the opposing surfaces of the septum primum (SP) and septum secundum (SS).

Methods: 1. Mechanical Injury: The interatrial septum of patients who underwent multiple left atrial (LA) ablations over 6 years, where a PFO was used for LA access, were examined.

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Background: The optimal site of ablation of idiopathic left ventricular outflow tract (LVOT) ventricular arrhythmias (VAs) is challenging as activation mapping can reveal similar activation times in different anatomical sites, suggesting an intramural origin.

Objective: We sought to assess whether in patients with intramural VAs and with multiple early activation sites (EASs), sequential ablation of all the early EASs could improve acute and long-term clinical outcomes.

Methods: A total of 116 patients undergoing catheter ablation for symptomatic LVOT VAs were enrolled in this study.

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Article Synopsis
  • The study compares long-term outcomes of two ablation approaches in patients with longstanding persistent atrial fibrillation (LSPAF) lasting less than 2 years.
  • Group 1 received extended pulmonary vein antrum isolation (PVAI) plus superior vena cava (SVC) isolation, while Group 2 received additional non-pulmonary vein trigger ablation, resulting in significantly higher long-term arrhythmia-free rates in Group 2 (86%) compared to Group 1 (69.2%).
  • The findings suggest that non-PV triggers play a crucial role in recurrence, and targeting these triggers during ablation improves patient outcomes.
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Background: This meta-analysis systematically evaluated the outcome of pulmonary vein isolation (PVI) with and without focal impulse and rotor modulation (FIRM) ablation in patients with atrial fibrillation.

Methods And Results: Extensive literature search was performed for studies reporting outcomes of PVI alone and PVI+FIRM procedures. For PVI alone, only randomized trials conducted in the past 3 years reporting single-procedure off-antiarrhythmic drugs success rate at ≥12-month follow-up were included.

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Introduction: Monomorphic ventricular tachycardia (VT) is an important cause of morbidity and mortality. Use and outcome data of catheter ablation for VT in nonischemic cardiomyopathy (NICM) are limited.

Methods And Results: We obtained data from the 2003-2014 National Inpatient Sample databases.

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Aims: This study investigated the impact of weight loss in longstanding persistent (LSPAF) patients undergoing catheter ablation (CA).

Methods: Ninety consecutive obese LSPAF patients were approached; 58 volunteered to try weight loss interventions for up to 1 year (group 1), while 32 patients declined weight loss interventions and were included as a control (group 2). Both groups remained on antiarrhythmic drugs.

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Aims: To compare the long-term outcomes of standard ablation of stable ventricular tachycardia (VT) vs. substrate modification, and of complete vs. incomplete substrate modification in patients with structural heart disease (SHD) presenting with VT.

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Background: Thyroid hormone (TH) is known to enhance arrhythmogenicity, and high-normal thyroid function is related with an increased recurrence of atrial fibrillation (AF) after catheter ablation. However, the impact of thyroid hormone replacement (THR) on AF ablation is not well known.

Methods: This study evaluated 1163 consecutive paroxysmal AF patients [160 (14%) on THR and 1003 (86%) without THR] undergoing their first catheter ablation.

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Background: MABp1, an antibody that targets interleukin 1α, has been associated with antitumour activity and relief of debilitating symptoms in patients with advanced colorectal cancer. We sought to establish the effect of MABp1 with a new primary endpoint in patients with advanced colorectal cancer.

Methods: Eligible patients for the double-blind phase of this ongoing, placebo-controlled, randomised, phase 3 trial, had metastatic or unresectable disease, Eastern Cooperative Oncology Group performance status score 1 or 2, systemic inflammation, weight loss, and other disease-related morbidities associated with poor prognosis, and were refractory to oxaliplatin and irinotecan.

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Aims: Left atrial (LA) scarring, a consequence of cardiac fibrosis is a powerful predictor of procedure-outcome in atrial fibrillation (AF) patients undergoing catheter ablation. We sought to compare the long-term outcome in patients with paroxysmal AF (PAF) and severe LA scarring identified by 3D mapping, undergoing pulmonary vein isolation (PVAI) only or PVAI and the entire scar areas (scar homogenization) or PVAI+ ablation of the non-PV triggers.

Methods And Results: Totally, 177 consecutive patients with PAF and severe LA scarring were included.

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