Full Text Journal Articles by
Author Douglas Y Mah

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Lead age as a predictor for failure in pediatrics and congenital heart disease.

Robert D Whitehill, Stephanie F Chandler, Elizabeth DeWitt, Dominic J Abrams, Edward P Walsh, Michael Kelleman, Douglas Y Mah,

<h4>Background</h4>Pediatric and congenital heart disease (CHD) patients have a high rate of transvenous (TV) lead failure.<h4>Objective</h4>To determine whether TV lead age can aid risk assessment for lead failure to guide the decision of whether a lead should be replaced or reused at time of generator change.<h4>Methods</h4>Retrospective cohort study of patients ... Read more >>

Pacing Clin Electrophysiol (Pacing and clinical electrophysiology : PACE)
[2021, :]

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Difference in the prevalence of intracardiac thrombus on the first presentation of atrial fibrillation versus flutter in the pediatric and congenital heart disease population.

Omar Meziab, Luciana Marcondes, Kevin G Friedman, Edward T O'Leary, Michelle Gurvitz, Christina J VanderPluym, Edward P Walsh, John K Triedman, Douglas Y Mah,

<h4>Introduction</h4>Guidelines recommend trans-esophageal echocardiography (TEE) for patients with atrial fibrillation (AF) or atrial flutter (AFL) for >48 h, due to risk of intracardiac thrombus formation. With growing evidence that AFL in adults with structurally normal hearts has less thrombogenic potential compared to AF, and the need for TEE questioned, we compared ... Read more >>

J Cardiovasc Electrophysiol (Journal of cardiovascular electrophysiology)
[2020, 31(12):3243-3250]

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Risk Factors for Early Recurrence Following Ablation for Accessory Pathways: The Role of Consolidation Lesions.

Audrey Dionne, Kimberlee Gauvreau, Edward O'Leary, Douglas Y Mah, Dominic J Abrams, Mark E Alexander, Elizabeth S DeWitt, Vassilios J Bezzerides, John K Triedman, Edward P Walsh,

<h4>Background</h4>Atrioventricular reentrant tachycardia is common in children. Catheter ablation is increasingly used as a first-line therapy with a high acute success rate, but recurrence during follow-up remains a concern. The aim of this study was to identify risk factors for recurrence after accessory pathway (AP) ablation.<h4>Methods</h4>Retrospective cohort study including patients ... Read more >>

Circ Arrhythm Electrophysiol (Circulation. Arrhythmia and electrophysiology)
[2020, 13(11):e008848]

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Cardiac resynchronization therapy improves the ventricular function of patients with Fontan physiology.

Jeremiah Joyce, Edward T O'Leary, Douglas Y Mah, David M Harrild, Jonathan Rhodes,

Past studies have not detected consistent improvement in ventricular function (VFxn) following initiation of cardiac resynchronization therapy (CRT) in Fontan patients. However, these studies used qualitative assessments of VFxn and/or quantitative assessments of VFxn that rely upon anatomic and/or geometric assumptions that may not be valid in patients with single ... Read more >>

Am Heart J (American heart journal)
[2020, 230:82-92]

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Atrioventricular Block in Children With Multisystem Inflammatory Syndrome.

Audrey Dionne, Douglas Y Mah, Mary Beth F Son, Pui Y Lee, Lauren Henderson, Annette L Baker, Sarah D de Ferranti, David R Fulton, Jane W Newburger, Kevin G Friedman,

<h4>Background</h4>Children are at risk for multisystem inflammatory syndrome in children (MIS-C) after infection with severe acute respiratory syndrome coronavirus 2. Cardiovascular complications, including ventricular dysfunction and coronary dilation, are frequent, but there are limited data on arrhythmic complications.<h4>Methods</h4>Retrospective cohort study of children and young adults aged ≤21 years admitted with ... Read more >>

Pediatrics (Pediatrics)
[2020, 146(5):]

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Resynchronizing Right and Left Ventricles With Right Bundle Branch Block in the Congenital Heart Disease Population.

Douglas Y Mah, Edward T O'Leary, David M Harrild, Diego Porras, Michelle Gurvitz, Gerald Marx, Rahul H Rathod, Francis Fynn-Thompson,

<h4>Objectives</h4>This study describes a single center experience with the use of cardiac resynchronization therapy (CRT) in a difficult patient population, including single systemic right ventricles (RVs), subpulmonary RVs, and left ventricles (LVs) with right bundle branch block (RBBB).<h4>Background</h4>CRT remains challenging in the congenital heart disease population.<h4>Methods</h4>Consecutive patients undergoing resynchronization of ... Read more >>

JACC Clin Electrophysiol (JACC. Clinical electrophysiology)
[2020, 6(14):1762-1772]

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Value of provocative electrophysiology testing in the management of pediatric patients after congenital heart surgery.

Audrey Dionne, John N Kheir, Kimberlee Gauvreau, John K Triedman, Dominic J Abrams, Mark E Alexander, Elizabeth S DeWitt, Douglas Y Mah, Edward P Walsh, Vassilios J Bezzerides,

<h4>Objective</h4>To determine the impact of provocative electrophysiology testing in postoperative congenital heart disease (CHD) patients on the management of supraventricular tachycardia (SVT) and clinical outcomes.<h4>Methods</h4>This is a retrospective study including patients <18 years of age with surgery for CHD who had postoperative SVT between 2006 and 2017. Postoperative outcomes were compared ... Read more >>

Pacing Clin Electrophysiol (Pacing and clinical electrophysiology : PACE)
[2020, 43(9):901-907]

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Complete Heart Block, Severe Ventricular Dysfunction, and Myocardial Inflammation in a Child With COVID-19 Infection.

Iqbal El-Assaad, M Indriati Hood-Pishchany, John Kheir, Kshitij Mistry, Avika Dixit, Olha Halyabar, Douglas Y Mah, Colin Meyer-Macaulay, Henry Cheng,

A young child presented with severe ventricular dysfunction and troponin leak in the setting of coronavirus disease-2019. He developed intermittent, self-resolving, and hemodynamically insignificant episodes of complete heart block that were diagnosed on telemetry and managed conservatively. This report is the first description of coronavirus disease-2019-induced transient complete heart block in ... Read more >>

JACC Case Rep (JACC. Case reports)
[2020, 2(9):1351-1355]

Cited: 2 times

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WITHDRAWN: Complete Heart Block, Severe Ventricular Dysfunction and Myocardial Inflammation in a Child with COVID-19 Infection.

Iqbal El Assaad, M Indriati Hood-Pishchany, John Kheir, Kshitij Mistry, Avika Dixit, Olha Halyabar, Douglas Y Mah, Colin Meyer-Macaulay, Henry Cheng,

The Publisher regrets that this article is an accidental duplication of an article that has already been published, https://doi.org/10.1016/j.jaccas.2020.05.023>. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal. ... Read more >>

JACC Case Rep (JACC. Case reports)
[2020, :]

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Clinical and Genetic Findings in Children Presenting With Ventricular Fibrillation as the First Manifestation of Cardiovascular Disease.

Robyn J Hylind, Stephanie F Chandler, Virginie Beausejour Ladouceur, Shelina M Jamal, Mark E Alexander, Douglas Y Mah, Emily A Phaneuf, Elizabeth S DeWitt, Vassilios J Bezzerides, Dominic J Abrams,

J Am Heart Assoc (Journal of the American Heart Association)
[2020, 9(10):e016322]

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Low mortality in fetal supraventricular tachycardia: Outcomes in a 30-year single-institution experience.

Edward T O'Leary, Mark E Alexander, Vassilios J Bezzerides, Monika Drogosz, Katherine E Economy, Kevin G Friedman, Sarah S Pickard, Wayne Tworetzky, Douglas Y Mah,

OBJECTIVES:To describe a single institutional experience managing fetuses with supraventricular tachycardia (SVT) and to identify associations between patient characteristics and fetal and postnatal outcomes. BACKGROUND:Sustained fetal SVT is associated with significant morbidity and mortality if untreated, yet the optimal management strategy remains unclear. METHODS:Retrospective cohort study including fetuses diagnosed with ... Read more >>

J Cardiovasc Electrophysiol (Journal of cardiovascular electrophysiology)
[2020, 31(5):1105-1113]

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Ultra-rapid atrial pacing as a form of rate control in postoperative automatic arrhythmias in patients with congenital heart disease.

Stephanie F Chandler, Robert D Whitehill, Elizabeth S DeWitt, Mark E Alexander, Francis Fynn Thompson, Douglas Y Mah,

HeartRhythm Case Rep (HeartRhythm case reports)
[2020, 6(4):215-218]

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Adverse event rate during inpatient sotalol initiation for the management of supraventricular and ventricular tachycardia in the pediatric and young adult population.

Stephanie F Chandler, Esther Chu, Robert D Whitehill, Laura M Bevilacqua, Vassilios J Bezzerides, Elizabeth S DeWitt, Mark E Alexander, Dominic J Abrams, John K Triedman, Edward P Walsh, Douglas Y Mah,

<h4>Background</h4>Sotalol is an important antiarrhythmic drug in the pediatric population. Given the risk of proarrhythmia, sotalol is initiated in inpatient settings, with adult studies as recent as 2015 supporting this practice.<h4>Objective</h4>The purpose of this study was to determine the frequency of adverse events (AEs) during sotalol initiation for the management ... Read more >>

Heart Rhythm (Heart rhythm)
[2020, 17(6):984-990]

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Outcomes of catheter ablation of anteroseptal and midseptal accessory pathways in pediatric patients.

Joshua R Kovach, Douglas Y Mah, Dominic J Abrams, Mark E Alexander, Frank Cecchin, John K Triedman, Edward P Walsh,

<h4>Background</h4>Outcomes for catheter ablation of accessory pathways in pediatric patients have steadily improved, with the exception of pathways located in the anteroseptal (AS) and midseptal (MS) regions, where success is limited by the close proximity of normal atrioventricular conduction.<h4>Objective</h4>The purpose of this study was to evaluate the efficacy of different ... Read more >>

Heart Rhythm (Heart rhythm)
[2020, 17(5 Pt A):759-767]

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Implanted pacemaker and cardioverter-defibrillator in a patient with ectopia cordis.

Tam Dan N Pham, Anne-Marie Valente, John E Mayer, Elizabeth S DeWitt, Douglas Y Mah,

HeartRhythm Case Rep (HeartRhythm case reports)
[2020, 6(2):110-113]

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Successful bilateral thoracoscopic sympathectomy for recurrent ventricular arrhythmia in a pediatric patient with hypertrophic cardiomyopathy.

Joshua Price, Douglas Y Mah, Francis L Fynn-Thompson, Anna E Tsirka,

HeartRhythm Case Rep (HeartRhythm case reports)
[2020, 6(1):23-26]

Cited: 1 time

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Acute coronary artery obstruction following surgical repair of congenital heart disease.

Michael P Goldsmith, Catherine K Allan, Ryan Callahan, Aditya K Kaza, Douglas Y Mah, Joshua W Salvin, Kimberlee Gauvreau, Diego Porras,

OBJECTIVES:Acute coronary artery obstruction is a rare complication of congenital heart disease surgery but imposes a high burden of morbidity and mortality. Previous case series have described episodes in specific congenital heart lesions or surgical repairs but have not examined the complication in all-comers to congenital heart surgery. We hypothesize ... Read more >>

J Thorac Cardiovasc Surg (The Journal of thoracic and cardiovascular surgery)
[2020, 159(5):1957-1965.e1]

Cited: 1 time

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Riata lead failure in pediatric and congenital heart disease patients.

Carolina A Escudero, Douglas Y Mah, Christina Y Miyake, Elizabeth A Stephenson, Martin J LaPage, Peter Kubuš, Mitchell I Cohen, Joseph Atallah,

BACKGROUND:Implantable cardioverter defibrillator (ICD) lead failures occur at higher rates in pediatric and congenital heart disease (CHD) patients. OBJECTIVE:To determine the rate and timing of Riata lead failure in pediatric and CHD patients. METHODS:This was a retrospective, multicenter cohort study of pediatric patients and adults with CHD with implantation of ... Read more >>

J Cardiovasc Electrophysiol (Journal of cardiovascular electrophysiology)
[2019, 30(3):320-325]

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Differentiation of fasciculoventricular fibers from anteroseptal accessory pathways using the surface electrocardiogram.

Edward T O'Leary, Elizabeth S Dewitt, Douglas Y Mah, Kimberlee Gauvreau, Edward P Walsh, Vassilios J Bezzerides,

<h4>Background</h4>Fasciculoventricular fibers (FVFs) are responsible for 1%-5% of cases of asymptomatic preexcitation on the surface electrocardiogram (ECG). Unlike ventricular preexcitation seen in Wolff-Parkinson-White (WPW) syndrome, FVFs are not associated with sudden cardiac death from preexcited atrial fibrillation.<h4>Objective</h4>The purpose of this study was to identify surface ECG variables that differentiate FVFs ... Read more >>

Heart Rhythm (Heart rhythm)
[2019, 16(7):1072-1079]

Cited: 4 times

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The Real-World Utility of the LINQ Implantable Loop Recorder in Pediatric and Adult Congenital Heart Patients.

Vassilios J Bezzerides, Amy Walsh, Maria Martuscello, Carolina A Escudero, Kimberlee Gauvreau, Geralyn Lam, Dominic J Abrams, John K Triedman, Mark E Alexander, Laura Bevilacqua, Douglas Y Mah,

<h4>Objectives</h4>This study sought to determine the practical use of the recently introduced LINQ implantable loop recorder (LINQ-ILR) in a cohort of pediatric and adult congenital arrhythmia patients.<h4>Background</h4>Correlating symptoms to a causative arrhythmia is a key aspect of diagnosis and management in clinical electrophysiology.<h4>Methods</h4>Retrospective review of clinical data, implantation indications, findings, ... Read more >>

JACC Clin Electrophysiol (JACC. Clinical electrophysiology)
[2019, 5(2):245-251]

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Dual-Site Ventricular Pacing in Patients With Fontan Physiology and Heart Block: Does it Mitigate the Detrimental Effects of Single-Site Ventricular Pacing?

Edward T O'Leary, Kimberlee Gauvreau, Mark E Alexander, Puja Banka, Vassilios J Bezzerides, Francis Fynn-Thompson, John K Triedman, Edward P Walsh, Douglas Y Mah,

<h4>Objectives</h4>This study sought to determine the long-term effect of dual-site ventricular pacing (i.e., cardiac resynchronization therapy [CRT]) versus single-site pacing in patients with Fontan physiology and high-grade atrioventricular block (AVB).<h4>Background</h4>Chronic single-site ventricular pacing in Fontan patients is associated with significant morbidity and mortality.<h4>Methods</h4>The study conducted a retrospective review of all ... Read more >>

JACC Clin Electrophysiol (JACC. Clinical electrophysiology)
[2018, 4(10):1289-1297]

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Coronary artery compression from epicardial leads: More common than we think.

Douglas Y Mah, Ashwin Prakash, Diego Porras, Francis Fynn-Thompson, Elizabeth S DeWitt, Puja Banka,

BACKGROUND:A child with an epicardial pacemaker presented with sudden death at our institution, secondary to coronary artery compression. This case prompted enhanced surveillance of all patients with epicardial pacing or defibrillation systems. OBJECTIVE:The purpose of this study was to determine the incidence of coronary artery compression and the diagnostic yield ... Read more >>

Heart Rhythm (Heart rhythm)
[2018, 15(10):1439-1447]

Cited: 2 times

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Evaluation of left ventricular false tendons in children with idiopathic left ventricular tachycardia.

Anthony Merlocco, David W Brown, Kimberlee Gauvreau, Douglas Y Mah, John K Triedman, Mark E Alexander, Edward P Walsh,

<h4>Background</h4>Left ventricular false tendons (FT) traverse the ventricular cavity and are thought to have some association with idiopathic left ventricular tachycardia (ILVT). However, reported prevalence of FT varies widely, making correlation difficult. Superior echocardiographic windows of pediatric patients may permit better analysis of FT in ILVT. Our study describes the ... Read more >>

Pacing Clin Electrophysiol (Pacing and clinical electrophysiology : PACE)
[2018, 41(9):1143-1149]

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Frequency of Ventricular Arrhythmias and Other Rhythm Abnormalities in Children and Young Adults With the Marfan Syndrome.

Douglas Y Mah, Lynn A Sleeper, Jane E Crosson, Richard J Czosek, Barry A Love, Brian W McCrindle, Laura Muiño-Mosquera, Aaron K Olson, Thomas A Pilcher, Elif Seda Selamet Tierney, Maully J Shah, Stephanie B Wechsler, Luciana T Young, Ronald V Lacro,

Patients with the Marfan syndrome (MFS) are at risk for sudden death. The contribution of arrhythmias is unclear. This study examines the prevalence of arrhythmias in children with the MFS and their relation to clinical and/or echocardiographic factors. Data from the Pediatric Heart Network randomized trial of atenolol versus losartan ... Read more >>

Am J Cardiol (The American journal of cardiology)
[2018, 122(8):1429-1436]

Cited: 3 times

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Cardiac Events During Competitive, Recreational, and Daily Activities in Children and Adolescents With Long QT Syndrome.

Kristina D Chambers, Virginie Beausejour Ladouceur, Mark E Alexander, Robyn J Hylind, Laura Bevilacqua, Douglas Y Mah, Vassilios Bezzerides, John K Triedman, Edward P Walsh, Dominic J Abrams,

<h4>Background</h4>The 2005 Bethesda Conference Guidelines advise patients with long QT syndrome against competitive sports. We assessed cardiac event rates during competitive and recreational sports, and daily activities among treated long QT syndrome patients.<h4>Methods and results</h4>Long QT syndrome patients aged ≥4 years treated with anti-adrenergic therapy were included. Demographics included mechanism of ... Read more >>

J Am Heart Assoc (Journal of the American Heart Association)
[2017, 6(9):]

Cited: 1 time

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