Publications by authors named "Vijaya M Joshi"

Background: The burden and functional significance of autonomic dysfunction among survivors of childhood cancer is unknown.

Objectives: We evaluated the prevalence, risk factors, and functional relevance of autonomic dysfunction in survivors.

Methods: We conducted a cross-sectional prospective evaluation of 1,041 adult survivors of childhood cancer treated with anthracyclines (31.

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Background: The prevalence of diastolic dysfunction has not been systematically evaluated in a large population of survivors of childhood cancer using established guidelines and standards.

Objectives: This study sought to assess the prevalence and progression of diastolic dysfunction in adult survivors of childhood cancer exposed to cardiotoxic therapy.

Methods: Comprehensive, longitudinal echocardiographic examinations of adult survivors of childhood cancer ≥18 years of age and ≥10 years from diagnosis in SJLIFE (St.

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Survival for pediatric patients diagnosed with cancer has improved significantly. This achievement has been made possible due to new treatment modalities and the incorporation of a systematic multidisciplinary approach for supportive care. Understanding the distinctive cardiovascular characteristics of children undergoing cancer therapies has set the underpinnings to provide comprehensive care before, during, and after the management of cancer.

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Background: Limited data exist regarding left ventricular remodeling patterns observed in adult survivors of childhood cancer after therapy.

Methods: Among 1190 adult survivors diagnosed with childhood cancer (median age at diagnosis, 9 years [interquartile range (IQR), 3.8-14.

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Cancer survivors who have undergone hematopoietic cell transplantation (HCT) are at risk for myocardial dysfunction. Children who receive allogenic HCT encounter systemic inflammation resulting in tachycardia and hypertension. The effect of these abnormalities on myocardial function is not known.

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Cardiac disease is the primary cause of death in sickle cell disease (SCD). Cardiac abnormalities begin in childhood and progress throughout life. Right and left ventricular (RV, LV) myocardial strain are early markers of systolic dysfunction but are not well investigated among individuals with SCD.

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Elevated tricuspid regurgitant velocity (TRV) ≥2.5 m/s is a predictor of disease severity in adults and children with sickle cell anemia (SCA), but how disease-modifying therapies (DMTs) affect this biomarker is incompletely understood. We investigated the effect of DMTs on TRV elevation in children.

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Background: Survivors of childhood cancer exposed to cardiotoxic therapies are at significant cardiovascular risk. The utility of cardiac biomarkers for identifying the risk of future cardiomyopathy and mortality is unknown.

Methods: N-terminal pro-B-type natriuretic peptide (NT-proBNP) and cardiac troponin T (cTnT) were assessed in 1213 adults 10 or more years from a childhood cancer diagnosis; 786 were exposed to anthracycline chemotherapy and/or chest-directed radiation therapy (RT).

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Article Synopsis
  • Survivors of childhood cancer, especially those treated with cardiotoxic therapies like chest-directed radiation and anthracycline chemotherapy, are at heightened risk for cardiovascular diseases.
  • A study analyzed family histories from 1,260 childhood cancer survivors and found significant links between first-degree family history of cardiovascular issues and increased risk of heart failure and hypertension.
  • These findings emphasize the need for careful cardiovascular monitoring in childhood cancer survivors, particularly those with a family history of heart-related conditions.
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Importance: Exercise intolerance is associated with increased risk for morbidity and mortality in childhood cancer survivors. However, an association between exercise intolerance and psychosocial outcomes has not been fully explored.

Objective: To examine the associations between exercise intolerance and emotional distress, attainment of social roles, and health-related quality of life in childhood cancer survivors.

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Article Synopsis
  • The study investigates exercise intolerance in long-term survivors of childhood cancer, particularly those who received cardiotoxic treatments compared to those who didn’t and control subjects without cancer history.
  • Results show that a significant percentage of survivors experience exercise intolerance, with rates higher in those exposed to anthracyclines or radiation than in controls.
  • Exercise intolerance is linked to decreased physical capability and a greater risk of mortality, suggesting the need for follow-up care focused on improving exercise capacity in this population.
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Objective: Femoral vein homograft can be used be used as valved right ventricle to pulmonary artery conduit in the Norwood operation. We describe the results of this approach, including pulmonary artery growth and ventricular function.

Methods: A retrospective chart review of 24 consecutive neonates with hypoplastic left heart syndrome or complex single ventricle undergoing this approach between June 2012 and December 2017 was performed.

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Elevated tricuspid valve regurgitation jet velocity (TRV ≥ 2.5 m/s) is associated with mortality among adults with sickle cell disease (SCD), but correlative biomarkers are not studied according to treatment exposure or genotypes. To investigate the associations between biomarkers and TRV elevation, we examined the relationship between TRV and hemolytic, inflammatory, and cardiac biomarkers, stratified by disease-modifying treatments and SCD genotype.

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Cardiac disease is the primary cause of death in sickle cell disease (SCD). Right and left ventricular global longitudinal strain (RVGLS, LVGLS) are early markers of systolic dysfunction but are not well investigated among children with SCD. One hundred and forty-three patients with HbSS or HbSβ -thalassaemia (median age 11 years, range 5-19 years) and 71 controls matched for age and sex were compared.

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Pulmonary hypertension, determined noninvasively by tricuspid regurgitant jet velocity on Doppler echocardiography, was previously identified in 25% of long-term survivors who received chest-directed radiotherapy. To validate noninvasively defined pulmonary hypertension, survivors (mean age 48 years), exposed to chest radiotherapy, underwent right heart catheterization with planned cardiopulmonary exercise testing during catheterization. Eight participants had an elevated mean pulmonary artery pressure at rest (≥25 mm Hg) or with subsequent exercise (>30 mm Hg), evidence of hemodynamically confirmed pulmonary hypertension by right heart catheterization.

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Background: Electrocardiography (ECG), predictive of adverse outcomes in the general population, has not been studied in cancer survivors. We evaluated the prevalence of ECG abnormalities and associations with mortality among childhood cancer survivors.

Methods: Major and minor abnormalities were coded per the Minnesota Classification system for participants in the St Jude Lifetime Cohort Study (n = 2,715) and community controls (n = 268).

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Background: The polytetrafluoroethylene tube used as right ventricle to pulmonary artery conduit in the stage 1 Norwood operation is associated with risks of suboptimal branch pulmonary artery growth, thrombosis, free insufficiency, and long-term right ventricular dysfunction. Our experience with use of valved femoral vein homograft as right ventricle to pulmonary artery conduit is described.

Methods: Between June 2012 and December 2015, 15 neonates with hypoplastic left heart syndrome or complex single ventricle underwent stage 1 Norwood operation with valved segment of femoral vein homograft as right ventricle to pulmonary artery conduit.

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Characterization of toxicity associated with cancer and its treatment is essential to quantify risk, inform optimization of therapeutic approaches for newly diagnosed patients, and guide health surveillance recommendations for long-term survivors. The NCI Common Terminology Criteria for Adverse Events (CTCAE) provides a common rubric for grading severity of adverse outcomes in cancer patients that is widely used in clinical trials. The CTCAE has also been used to assess late cancer treatment-related morbidity but is not fully representative of the spectrum of events experienced by pediatric and aging adult survivors of childhood cancer.

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Background: Studies of cardiac disease among adult survivors of childhood cancer have generally relied on self-reported or registry-based data.

Objective: To systematically assess cardiac outcomes among survivors of childhood cancer.

Design: Cross-sectional study.

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Background: Treatment-related cardiac death is the primary, noncancer cause of mortality in adult survivors of childhood malignancies. Early detection of cardiac dysfunction may identify a high-risk subset of survivors for early intervention.

Objectives: This study sought to determine the prevalence of cardiac dysfunction in adult survivors of childhood malignancies.

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Objective: Symptomatic neonates with Ebstein's anomaly pose significant challenge. Within this cohort, neonates with associated anatomical pulmonary atresia have higher mortality. We review our experience with this difficult subset.

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Objectives: Incisions in the left ventricle have previously been associated with increased mortality and morbidity, particularly in infants. In order to determine whether this assumption is still true in the current era, we reviewed our recent experience with apical left ventriculotomy in neonates and infants.

Methods: The records of five consecutive patients requiring a left ventriculotomy between 2007 and 2010 were reviewed.

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Purpose: To determine the prevalence of pulmonary hypertension, a late effect of cancer therapy not previously identified in aging survivors of childhood cancer, and associations with chest-directed radiation therapy (RT) and measures of current cardiac function, lung function, and exercise capacity.

Patients And Methods: Cross-sectional evaluation of 498 survivors at a median age of 38.0 years (range, 20.

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