Publications by authors named "Shelby Kutty"

Background: Patients with systemic right ventricle (SRV), either d-transposition of the great arteries following an atrial switch procedure or congenitally corrected transposition of the great arteries, develop severe right ventricular dysfunction, prompting appropriate medical therapy. However, the efficacy of beta-blockers and angiotensin receptor blockers or angiotensin-converting enzyme inhibitors (ACEI) in SRV patients is unproven.

Objectives: The objective of this study was to determine the effects of ACEI/ARB and beta-blockers on outcomes in SRV patients after accounting for likely cofounders affecting their use.

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Objective: Repaired Tetralogy of Fallot (rTOF), a complex congenital heart disease, exhibits substantial clinical heterogeneity. Accurate prediction of disease progression and tailored patient management remain elusive. We aimed to categorize rTOF patients into distinct phenotypes based on clinical variables and variables obtained from cardiac magnetic resonance (CMR) imaging.

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Background: Arrhythmogenic right ventricular cardiomyopathy (ARVC) increases the risk of heart failure (HF) and arrhythmias. Speckle-tracking echocardiography (STE) detects myocardial dysfunction, but its predictive role for HF in this population remains unclear.

Methods: Seventy-one patients with ARVC (age 43.

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Background: Anthracyclines are essential in pediatric cancer treatment, but patients are at risk cancer therapy-related cardiac dysfunction (CTRCD). Standardized definitions by the International Cardio-Oncology Society (IC-OS) aim to enhance precision in risk assessment.

Objectives: Categorize distinct phenotypes among pediatric patients undergoing anthracycline chemotherapy using unsupervised machine learning.

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Article Synopsis
  • Current methods to predict sudden cardiac death (SCD) in children with hypertrophic cardiomyopathy (HCM) are insufficient, although late gadolinium enhancement (LGE) in CMR imaging has shown a link to SCD in adults.
  • This study aimed to assess the significance of LGE in HCM patients under 21 years, utilizing data from various international centers between 2015 and 2022.
  • Results indicated that 32.9% of the 700 patients had LGE, and those with LGE were more likely to experience SCD or related events, emphasizing the potential role of LGE in clinical assessments for younger patients with HCM.
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Background: The Single Ventricle Reconstruction (SVR) trial compared survival after Norwood procedure with either modified Blalock Taussig shunt (MBTS) or right ventricle pulmonary artery shunt (RVPAS).

Methods: Data from all 549 participants in the SVR trial were used to develop the MBTS TFSA algorithms, which predict the transplantation-free survival advantage (TFSA) after MBTS vs RVPAS at 1 and 6 years after Norwood procedure. Linear regression analysis of the MBTS TFSA values was performed to identify factors related to more optimal outcomes with MBTS at each timepoint.

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Objectives: Clinical parameters along with echocardiographic markers are used to interrogate the haemodynamics in persistent pulmonary hypertension of the newborn (PPHN). The aim of this study was to compare different echocardiographic markers in recent cohort of newborn infants with and without PPHN.

Methods: In this retrospective study, common echocardiographic markers were examined in infants>34 weeks' gestation with PPHN (cases) and without PPHN (controls).

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Article Synopsis
  • Patients with transposition of the great arteries (TGA) and systemic right ventricle face serious heart-related risks, and researchers sought to determine if specific invasive hemodynamic measures can predict outcomes.
  • The study included 242 adults who underwent cardiac catheterization from 1994 to 2020, analyzing various hemodynamic parameters over an average follow-up period of 11.4 years.
  • Results indicated that a low aortic pulsatility index (<1.5) strongly predicts negative outcomes such as death or the need for heart transplantation, with the cold/wet hemodynamic profile presenting the highest associated risk.
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Background: Cardiovascular disease (CVD) and cancer frequently co-occur due to shared risk factors such as obesity, which is linked to CVD and 14 cancer types. This study explores whether CVD pathophysiologies, combined with obesity, increase cancer risk, impacting clinical management.

Methods And Results: Data from the ARIC (Atherosclerosis Risk in Communities) study, spanning 28 years, were analyzed.

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Congestive hepatopathy is a significant complication for children suffering from right-sided heart disease (RHD). We hypothesize that hospitalized pediatric patients with ascites will have congestive hepatopathy leading to advanced liver disease if their cardiac condition is RHD versus non-right-sided heart disease (NRHD). This is a retrospective cohort study of pediatric patients who presented with an ascites diagnosis (ICD-10 R18) and at least one cardiac diagnosis.

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The skill of interpretation of the electrocardiogram (ECG) remains poor despite existing educational initiatives. We sought to evaluate the validity of using a subjective scoring system to assess the accuracy of ECG interpretations submitted by pediatric cardiology fellows, trainees, and faculty to the Pediatric ECG Review (pECGreview), a web-based ECG interpretation training program. We conducted a retrospective, cross-sectional study of responses submitted to pECGreview.

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Background: Neoaortic root dilatation (NeoARD) and neoaortic regurgitation (NeoAR) are common sequelae following the arterial switch operation (ASO) for transposition of the great arteries.

Objectives: The authors aimed to estimate the cumulative incidence of NeoAR, assess whether larger neoaortic root dimensions were associated with NeoAR, and evaluate factors associated with the development of NeoAR during long-term follow-up.

Methods: Electronic databases were systematically searched for articles that assessed NeoAR and NeoARD after ASO, published before November 2022.

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Importance And Objectives: The current medical paradigm of evidence-based medicine relies on clinical guidelines derived from randomized clinical trials (RCTs), but these guidelines often overlook individual variations in treatment effects. Approaches have been proposed to develop models predicting the effects of individualized management, such as predictive allocation, individualizing treatment allocation. It is currently unknown whether widespread implementation of predictive allocation could result in better population-level outcomes over guideline-based therapy.

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Echocardiography is pivotal for diagnosis and monitoring of hypertrophic cardiomyopathy (HCM) and can evaluate myocardial function using myocardial work (MW) calculations. Echocardiography is often supplemented by cardiovascular magnetic resonance (CMR) imaging, which can detect myocardial fibrosis using late gadolinium enhancement (LGE). We sought to study the relationship between baseline LGE and MW at baseline and during follow-up in pediatric HCM patients.

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Background: Anthracyclines are associated with cardiac dysfunction. Little is known about the interplay of pre-existing hypertension and treatment response. We aimed to investigate the relationship between hypertension and the development of cancer therapy-related cardiac dysfunction (CTRCD) in pediatric patients treated with anthracycline chemotherapy.

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Background: Echocardiographic myocardial work is a new load-independent echocardiographic technique to quantify left ventricle (LV) systolic performance. Our aim was to establish normal values for echocardiographic myocardial work in a large population of healthy children.

Methods: For all the subjects 4-, 2-, and 3-chamber-view videos were stored.

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Article Synopsis
  • * After initial treatment, the infant was readmitted at 13 days old due to recurring tachycardia that didn't respond to standard medications.
  • * She was successfully managed with a combination of three drugs, stabilizing her condition and preventing further episodes, underlining the complexity of treating heart rhythm issues in patients with structural heart abnormalities.
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Background: Bronchopulmonary dysplasia-associated pulmonary hypertension (BPD-PH) remains a devastating clinical complication seriously affecting the therapeutic outcome of preterm infants. Hence, early prevention and timely diagnosis prior to pathological change is the key to reducing morbidity and improving prognosis. Our primary objective is to utilize machine learning techniques to build predictive models that could accurately identify BPD infants at risk of developing PH.

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Background: The mortality risk attributable to moderate aortic stenosis (AS) remains incompletely characterized and has historically been underestimated. We aim to evaluate the association between moderate AS and all-cause death, comparing it with no/mild AS (in a general referral population and in patients with heart failure with reduced ejection fraction).

Methods And Results: A systematic review and pooled meta-analysis of Kaplan-Meier-derived reconstructed time-to-event data of studies published by June 2023 was conducted to evaluate survival outcomes among patients with moderate AS in comparison with individuals with no/mild AS.

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Purpose: There remains a need for improved imaging markers for risk stratification and treatment guidance in Marfan syndrome (MFS). After aortic root replacement (ARR), vascular remodeling and progressive aneurysm formation can occur due to alterations in up- and downstream wall biomechanics and hemodynamics. We aim to compare the ventriculo-vascular properties of patients with MFS with controls, and investigate the correlation between ascending aortic area strain and descending aortic area strain (DAAS) with other clinical variables.

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Article Synopsis
  • Patients with pulmonary arterial hypertension (PAH) often experience symptoms like anxiety and depression, and structural changes in the brain's cortex have been observed in these individuals.
  • A study using genome-wide association data analyzed PAH’s potential genetic connections to cognitive performance, depression, and alterations in brain cortex thickness, discovering no causal link between PAH and these mental health issues.
  • However, specific regions of the brain showed changes in thickness associated with PAH, suggesting a potential relationship that could explain neuropsychiatric symptoms despite limitations in the study's demographic focus.
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Aims: This study aimed to identify the impact of increased epicardial adipose tissue (EAT) and its regional distribution on cardiac function in patients with diastolic dysfunction.

Methods And Results: Sixty-eight patients with exertional dyspnoea (New York Heart Association ≥II), preserved ejection fraction (≥50%), and diastolic dysfunction (E/e' ≥ 8) underwent rest and stress right heart catheterization, transthoracic echocardiography, and cardiovascular magnetic resonance (CMR). EAT volumes were depicted from CMR short-axis stacks.

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Background: With emerging therapies, early diagnosis of heart failure with preserved ejection fraction (HFpEF) comes to the fore. Whilst the reference standard of exercise-stress right heart catheterisation is well established, the clinical routine struggles between feasibility of exercise-stress and diagnostic accuracy of available tests.

Methods: The HFpEF Stress Trial (DZHK-17) prospectively enrolled 75 patients with exertional dyspnoea and echocardiographic signs of diastolic dysfunction (E/e' > 8) who underwent simultaneous rest and exercise-stress echocardiography and right heart catheterisation (RHC).

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Background: Newborns with hypoplastic left heart syndrome (HLHS) who are considered at increased risk for death following Norwood/Sano surgery often undergo hybrid palliation (HP) as initial surgery. We aimed to compile the HP experience in HLHS and its variants and assess the rates of, and risk factors for, death and heart transplantation.

Methods: CINAHL, CINAHL PLUS, PubMed/MEDLINE, and SCOPUS were systematically searched for HP outcome studies of death or heart transplantation in HLHS between 1998 and 2022.

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Background: The decision to perform biventricular repair (BVR) in neonates and infants presenting with either single or multiple left ventricle outflow obstructions (LVOTOs) and a borderline left ventricle (BLV) is subject to extensive discussion, and limited information is known regarding the long-term outcomes. As a result, the objective of this study is to critically assess and summarize the available data regarding the prognosis of neonates and infants with LVOTO and BLV who underwent BVR.

Methods: In February 2023, we conducted a review study with three different medical search engines (the National Library of Medicine, Science Direct, and Cochrane Library) for Medical Subject Headings and free text terms including "congenital heart disease", "outcome", and "borderline left ventricle".

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