Publications by authors named "Jonathan Johnson"

Background: Pediatric organ transplantation is the primary treatment for end-organ failure. Improving medication adherence and healthcare compliance can decrease healthcare burdens, graft rejection, morbidity, and mortality. Adolescents commonly struggle with non-adherence, necessitating a smooth transition to adult care.

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  • Researchers aimed to create AI algorithms using 12-lead ECGs to detect left and right ventricular systolic dysfunction (LVSD and RVSD) in children, as early diagnosis can significantly reduce health risks.
  • They analyzed data from over 10,000 pediatric patients and developed models that showed high accuracy in identifying LVSD and RVSD, outperforming existing models designed for adults.
  • The findings suggest that specialized AI tools for children are more effective than those trained on adult data, highlighting the potential for better diagnostic procedures in pediatric cardiac health.
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Background: Immunosuppressive regimens are imperative for improving patient and graft survival following kidney transplantation in patients with kidney failure. However, real-world evidence regarding treatments and outcomes in these patients is scarce. We sought to describe the treatment switches (assessed by line of treatment [LOT]), patterns, and outcomes in patients who underwent kidney transplantation in the United States.

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Background: Quadricuspid aortic valve (QAV) is an exceedingly rare congenital heart defect (CHD) which has not been well-defined in a pediatric population.

Methods: The Mayo Clinic echocardiography database was retrospectively analyzed to identify patients ≤18 years diagnosed with QAV from January 1990 to December 2023. Patients with truncus arteriosus were excluded.

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  • AI-enabled ECGs can predict the sex of pediatric patients and analyze the effects of puberty on this prediction.
  • The study utilized a convolutional neural network trained on ECG data from over 90,000 pediatric patients, dividing them into different age groups.
  • The model showed 81% overall accuracy, especially discriminating well in postpubertal patients, indicating potential for effective use in pediatric cardiology.
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  • Patients with adult congenital heart disease (ACHD) are increasingly facing heart failure, but there is limited research on their heart transplantation outcomes.
  • A study analyzed 77 ACHD patients who underwent heart transplantation from 1990 to 2023, finding that univentricular (UniV) patients had higher rates of liver disease and required more multiorgan transplants compared to biventricular (BiV) patients.
  • While UniV patients showed lower survival rates within the first year post-transplant, their long-term survival rates were comparable to BiV patients after one year, highlighting complex health challenges in this demographic.
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  • * Analysis of 50,625 operations showed that higher prior surgery counts (3 or more) significantly increased the risks: operative mortality rates rose from 0.6% for no prior surgeries to 6.3% for six or more.
  • * The findings indicate that having three or more prior cardiopulmonary bypass operations is a strong independent risk factor for worse surgical outcomes, suggesting that further studies should focus on improving patient management and outcomes.
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While significant progress has been made in reducing disparities within the US health care system, notable gaps remain. This article explores existing disparities within pediatric congenital heart disease care. Congenital heart disease, the most common birth defect and a leading cause of infant death, has garnered substantial attention, revealing certain disparities within the US health care system.

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  • - Ebstein anomaly is a rare heart condition affecting the right ventricle due to improper formation of the tricuspid valve, leading to tricuspid regurgitation.
  • - The variability in symptoms and anatomy makes it tough to decide when to perform surgery, although modern techniques usually have low risks.
  • - A case is discussed where a patient delayed surgery, underwent high-risk conventional procedures unsuccessfully, and ultimately needed a heart transplant.
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Evidence from medicine and other fields has shown that gender diversity results in better decision making and outcomes. The incoming workforce of congenital heart specialists (especially in pediatric cardiology) appears to be more gender balanced, but past studies have shown many inequities. Gender-associated differences in leadership positions, opportunities presented for academic advancement, and recognition for academic contributions to the field persist.

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Background: In the United States, 33% of households with children contain firearms, however only one-third reportedly store firearms securely. It's estimated that 31% of unintentional firearm injury deaths can be prevented with safety devices. Our objective was to distribute safe storage devices, provide safe storage education, evaluate receptivity, and assess impact of intervention at follow-up.

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Introduction: Pediatric heart transplant patients are routinely followed in dermatology clinics due to elevated risk of cutaneous malignancy. However, transplant patients may experience other, non-cancer-related dermatologic conditions including skin infections, inflammatory diseases, and drug eruptions that can cause significant medical and psychosocial comorbidity.

Methods: A retrospective chart review of all pediatric heart transplant patients at Mayo Clinic Children's Center in Rochester, MN, was performed to determine the prevalence and spectrum of non-cancer dermatologic conditions.

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Background: Little is known about outcomes following heart failure (HF) hospitalization among adults with congenital heart disease (CHD) in the United States. We aim to compare the outcomes of HF versus non-HF hospitalizations in adults with CHD.

Methods And Results: Using a national deidentified administrative claims data set, patients with adult congenital heart disease (ACHD) hospitalized with and without HF (ACHDHF+, ACHDHF-) were characterized to determine the predictors of 90-day and 1-year mortality and quantify the risk of mortality, major adverse cardiac and cerebrovascular events, and health resource use.

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Prior authorization is a process that health insurance companies use to determine if a patient's health insurance will cover certain medical treatments, procedures, or medications. Prior authorization requests are common in adult congenital and pediatric cardiology (ACPC) due to need for advanced diagnostics, complex procedures, disease-specific medications, and the heterogeneity of the ACPC population. Prior authorizations in ACPC are rarely denied, but nonetheless, they are often accompanied by significant administrative burden on clinical care teams and delays in patient care.

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Background: Many types of interstitial lung diseases (ILDs) may transition to progressive chronic-fibrosing ILDs with rapid lung function decline and a negative survival prognosis. In real-world clinical settings, forced vital capacity (FVC) measures demonstrating progressive decline may be linked to negative outcomes, including increased risks of costly healthcare resource utilization (HRU). Thus, we assessed the relationship between rate of decline in lung function and an increase in HRU, specifically inpatient hospitalization, among patients with chronic fibrosing ILD.

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Background: While early outcomes of the Konno-Rastan and modified Konno procedures are known, long-term outcomes remain undetermined. Our objective was to examine long-term clinical and echocardiographic outcomes.

Methods: Retrospective review was performed of patients undergoing Konno-Rastan and modified Konno for complex left ventricular outflow tract (LVOT) obstruction from January 1980 to January 2021.

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Background: Little data exist regarding characteristics and outcomes of pediatric patients undergoing septal myectomy. We evaluated this in a large referral population.

Methods: Septal myectomy was performed in 199 consecutive patients aged ≤18 years with obstructive hypertrophic cardiomyopathy from January 1, 1976, to June 30, 2021.

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Underrepresentation of diverse skin tones in medical education and providers' implicit racial bias drives inequities in wound care, such as disproportionally poor outcomes for Black patients. Diagnostic indicators (e.g.

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Background: The SARS-CoV-2 pandemic and corresponding acute respiratory syndrome have affected all populations and led to millions of deaths worldwide. The pandemic disproportionately affected immunocompromised and immunosuppressed adult patients who had received solid organ transplants (SOTs). With the onset of the pandemic, transplant societies across the world recommended reducing SOT activities to avoid exposing immunosuppressed recipients.

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Background: There are no criteria guiding the timing of heart transplant referral for Fontan patients, nor are there any characteristics of those deferred or declined listing reported. This study examines comprehensive transplant evaluations for Fontan patients of all ages, listing decisions, and outcomes to inform referral practices.

Methods: Retrospective review of 63 Fontan patients formally assessed by the advanced heart failure service and presented at Mayo Clinic transplant selection committee meetings (TSM) January 2006 to April 2021.

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The congenital heart surgeon frequently encounters patients with various genetic disorders requiring surgical intervention. Although the specifics of the genetics for these patients and their families lie in the purview of specialists in genetics, the surgeon is well-served to be familiar with aspects of specific syndromes that impact surgical management and perioperative care. This aids in counseling families in expectations for the hospital course and recovery as well as can impact intraoperative and surgical management.

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Objective: To describe the early postoperative outcomes after cone repair (CR) for Ebstein anomaly (EA) across the age spectrum.

Patients And Methods: For this study, 284 patients from 1 to 73 years of age who underwent CR at Mayo Clinic from June 1, 2007, to December 21, 2018, were separated by age group (1-<4, 4-<19, 19-<40, and 40+ years) and by disease severity for analysis. Outcomes of interest included death, reoperation, readmission, early postoperative complications, cardiac intensive care unit and hospital length of stay, and need for superior cavopulmonary anastomosis.

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