Publications by authors named "John Roshan"

Background: Health systems rapidly adopted telemedicine as an alternative health care delivery modality in response to the COVID-19 pandemic. Demographic factors, such as age and gender, may play a role in patients' choice of a phone or video visit. However, it is unknown whether there are differences in utilization between phone and video visits.

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We present a case of antidromic AVRT involving an atriofascicular pathway in a patient with an atretic coronary sinus os. This patient had left ventricular dysfunction with rate-related left bundle branch block aberrancy in sinus rhythm. In the electrophysiology lab, there was VA dissociation for a few beats during antidromic tachycardia.

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Background: Transesophageal electrophysiological study (TEEPS) is a minimally invasive procedure that helps in evaluating the risk of recurrence of supraventricular tachycardia based on the inducibility of the tachycardia. The purpose of this study was to evaluate the diagnostic capability, negative predictive value of noninducibility of tachycardia and safety of TEEPS among the Indian pediatric population.

Methods: It is a retrospective single-center observational study of all patients who underwent TEEPS from January 01, 2014, to December 31, 2020.

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Introduction: Symphysis being an autogenous bone graft serves as one of the best graft for augmenting osseous defects of alveolar process with excellent results. It has been favoured mainly due to its local availability, accessibility and lesser resorption compared to other bones in the region.

Case Report: A 21/M reported to the department of Implantology with the complaint of missing tooth in the upper front tooth region since 1 year.

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Objective: The objective of the study was to use polymerase chain reaction (PCR) to examine and compare the genotype distribution of human papillomavirus (HPV) in oral lichen planus (OLP).

Materials And Methods: Deoxyribonucleic acid (DNA) was extracted from 20 OLP biopsy specimens. Conventional PCR assay employing consensus HPV primers was used to identify HPV DNA.

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Objective: Knowledge of factors causing pacing-induced cardiomyopathy (PICM) is incomplete. We sought to estimate the incidence and predisposing factors for PICM and evaluate if the risk they portend adds up.

Methods: Single centre retrospective study where consecutive patients with preserved LVEF undergoing pacemaker (PM) implantation between 2012 and 2018 were analysed.

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Purpose: Antimicrobial resistance has emerged as a major public health problem in India. Hence effective antimicrobial stewardship programs (AMSP) are needed. We report the design, implementation and results of a prospective audit and feedback based AMSP at a private tertiary care hospital.

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A 33-year-old male who underwent surgery for Tetralogy of Fallot presented with atrial flutter. Electrophysiology study revealed concealed entrainment along the mid lateral right atrium with postpacing interval shorter than the tachycardia cycle length. Ablation at this site terminated the tachycardia.

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Congenital long QT syndrome [LQTS] is a channelopathy characterized by QT prolongation and polymorphic VT. LQTS however need not be a purely electrical disease. Defects in ion channels may cause myocardial architectural disruption leading to ventricular non compaction [VNC].

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Background: Accelerated ventricular response is frequently observed during radiofrequency ablation (RFA) of premature ventricular complexes (PVCs). We hypothesized that acceleration indicates an appropriate site and adequate injury to the arrhythmogenic tissue, and sought to investigate its value in predicting the outcome.

Methods: We retrospectively analyzed RFA procedures performed for PVCs in our institution from 2011 to 2019.

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Background: Data from large-volume centers in developed countries, using dedicated tools, show a high success rate with a good safety record for the percutaneous lead removal procedure. However, there are constraints to replicate the results in a resource-poor setting and there is limited data from India.

Methods: We retrospectively analyzed lead removal procedures performed in our institution from 2008 to 2019.

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Background And Objectives: Right ventricular (RV) pacing can lead to progressive ventricular dysfunction over a certain period. This pacemaker-induced cardiomyopathy (PiCMP) may be more common than previously reported. Speckle tracking imaging is a recent development in echocardiography that can identify left ventricular (LV) dysfunction even before the LV ejection fraction (LVEF) value decreases.

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Background: The analgesic benefit of transversus abdominis plane (TAP) blocks for cesarean delivery remains controversial. In our study, we compared the analgesic efficacy of TAP block using local anesthetic bupivacaine and adjunct fentanyl with bupivacaine alone in patients undergoing elective cesarean section.

Methods: Our study was a randomized, double-blind, controlled clinical trial where sixty patients undergoing elective cesarean delivery under subarachanoid block (2 ml of 0.

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The right atrial appendage can be the origin of focal atrial tachycardias. Their ablation can be challenging owing to the complexity of the appendage anatomy. To our knowledge, we describe the first successful solid tip cryoablation of a focal tachycardia within the right atrial appendage in a patient presenting with tachycardia-induced cardiomyopathy.

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Limb-girdle muscular dystrophy (LGMD) is an autosomal recessive disorder in which the pelvic or shoulder girdle musculature is predominantly or primarily involved. We report the management of a 27-year-old primigravida with LGMD associated with obesity posted for elective cesarean section. She was successfully managed with epidural anesthesia assisted with noninvasive positive pressure ventilation.

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