Publications by authors named "Ajit Kumar Valaparambil"
Article Synopsis
- - The study compares the effectiveness of 3D transesophageal echocardiography (TEE) versus the more commonly used 2D TEE for planning device closures of atrial septal defects (ASD) in patients.
- - Conducted over one year with 30 mostly female patients averaging 40.5 years old, both 2D and 3D TEE were used to assess defect characteristics, revealing a strong agreement between the two methods for measuring ASD diameters.
- - Findings indicate that sizing the device based on 3D TEE parameters is as accurate as using 2D TEE, and an equation for predicting device size based on 3D metrics was developed, showing a high correlation
Article Synopsis
- Dilated cardiomyopathy (DCM) is a leading cause of heart failure in children, but research on pediatric cases is limited; this study aimed to evaluate the clinical profiles and outcomes of DCM in kids.
- Out of 233 identified cases of pediatric cardiomyopathy, 119 were diagnosed with DCM, with common presentations including dyspnea and heart failure; many patients were treated with various heart medications.
- Over a follow-up period, 45% of patients who were tracked died, 36% recovered, and infant onset was notably linked to higher mortality and arrhythmias; the 5-year survival rate data highlighted significant outcomes related to DCM.
Clinical profile and outcomes of pediatric hypertrophic cardiomyopathy in a South Indian tertiary care cardiac center: a three decade experience.
BMC Pediatr
September 2023
Introduction: Although much research has been done on adult hypertrophic cardiomyopathy, data on pediatric hypertrophic cardiomyopathy is still limited.
Methods And Results: The study enrolled all patients with cardiomyopathy who presented to us between 1990 to 2020 and were younger than 18 yrs. During the thirty-year study period, we identified 233 cases of pediatric cardiomyopathy.
Aims: The ideal pacing strategy has been the Achilles' heel for patients with congenitally corrected transposition of great arteries (ccTGA) with bradycardia. Various pacing modalities were documented in the literature. This article describes a novel pacing strategy and its feasibility in ccTGA with an intact ventricular septum.
View Article and Find Full Text PDFBackground: Semi-permanent pacing (SPP) includes the placement of a permanent lead through the internal jugular vein and connection to a pulse generator on the skin outside the venous access site.
Aim: To evaluate the clinical profile and outcomes of semi-permanent pacing in a tertiary care institute in Southern India.
Methods: This is a retrospective observational study.
Article Synopsis
- The study examined the incidence of new conduction abnormalities after alcohol septal ablation (ASA) in 23 patients over 5 years.
- Pre-existing conduction issues were found in 26% of patients, while new onset right bundle branch block (RBBB) occurred in 60.8% of cases, and transient complete heart block (CHB) was noted in 21.7%.
- Permanent pacemaker implantation was required in 4.3% of patients, indicating that conduction abnormalities after ASA are common, with RBBB being the most frequently observed issue.
Long term outcome data after BMS implant is not available from the Indian subcontinent. This is a prospective observational study which aims to study long term outcomes after BMS implant at a tertiary care centre. 100 consecutive patients underwent BMS implant and were followed up for 20 years.
View Article and Find Full Text PDFVentricular tachycardia arising from the papillary muscles and other endocavitary structures are preferably ablated under intracardiac echocardiographic (ICE) guidance whenever feasible. However, the availability, need of trained operators, and the expenses involved restrict the routine use of ICE in many cath labs. Point density exclusion (PDX) mapping is a simple technique that doesn't demand any additional expense or tool apart from the routine electroanatomical mapping and thus can be widely applied in mapping of arrhythmias arising from endocavitary structures.
View Article and Find Full Text PDFAim: Long-term outcome data of acute decompensated heart failure (HF) are scarce from India. The aim of the study was to collect in-hospital and long-term outcome data of HF patients admitted during 2001-2010 in a tertiary-care centre in South India.
Methods And Results: Consecutive patients admitted with first episode of decompensated HF were part of the registry.
Radial access for cardiac catheterization and intervention in India has been growing steadily over the last decade with favorable clinical outcomes. However, its usage by interventional cardiologists varies greatly among Indian operators and hospitals due to large geographic disparities in health care delivery systems and practice patterns. It also remains unclear whether the advantages, as well as limitations of transradial (TR) intervention (as reported in the western literature), are applicable to developing countries like India or not.
View Article and Find Full Text PDFLong-term effects of cardiac resynchronization therapy on electrical remodeling in heart failure-A prospective study.
Pacing Clin Electrophysiol
November 2017
Introduction: Effects of cardiac resynchronization therapy (CRT) on arrhythmogenicity and sudden death have not been fully ascertained. CRT has been shown to increase transmural dispersion of repolarization (TDR) immediately on implantation, which may favorably remodel on long-term follow-up. However, such a hypothesis has not been prospectively evaluated.
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