Publications by authors named "Alexandra Klomhaus"

Importance: Angiotensin receptor-neprilysin inhibition (ARNI) improves mortality among patients with heart failure with reduced ejection fraction (HFrEF), ie, those with an EF of 40% or less.

Objective: To describe national longitudinal trends in ARNI prescribing patterns among hospitalized patients with HFrEF.

Design, Setting, And Participants: Using data from the Get With The Guidelines-Heart Failure (GWTG-HF) registry, hospitalized patients with HFrEF at 614 participating hospitals were identified.

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Purpose: The perspective of all stakeholders involved in clinical trials is critical to addressing disparities in racial/ethnic minority (REM) clinical trial participation. Little is known about clinical trial investigator perspectives. To our knowledge, there are no published studies assessing differences in investigator perspectives on the basis of their primary role in clinical trials (ie, principal investigator [PI] or subinvestigator [sub-I]).

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  • The study identified specific characteristics linked to genetic diagnoses in patients with neurodevelopmental disorders and created a decision tree to help clinicians predict which patients might benefit from genetic testing.
  • Researchers analyzed the records of 316 patients and found that those with genetic diagnoses were typically female and more likely to show signs like motor delay and hypotonia.
  • The conclusion emphasizes that motor delay and hypotonia are key indicators for genetic conditions, and future work could refine decision trees to improve screening processes for genetic testing in this patient group.
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Study Objective: The association of prior to admission guideline-directed medical therapy (GDMT) use in patients hospitalized with Heart Failure with Reduced Ejection Fraction (HFrEF, ejection fraction ≤40 %) and Coronavirus Disease 2019 (COVID-19) with in-hospital outcomes has not been well studied.

Design/setting/participants/interventions/outcome Measures: Using the American Heart Association's Get With The Guidelines Heart Failure Registry, we identified HFrEF patients presenting with acute decompensated heart failure (ADHF) and compared rates of GDMT prescription between those presenting prior to and during the pandemic. In a subgroup of patients with a concomitant COVID-19 diagnosis, we evaluated the association of prior to admission GDMT use with in-hospital mortality and severe COVID-19.

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  • One in four children with cerebral palsy (CP) will have orthopedic surgery, but effective pain management post-surgery is not well researched, which can lead to worse outcomes.
  • This study aimed to assess the effectiveness of a multimodal surgical site injection combining ropivacaine, epinephrine, and ketorolac for pain control after hip dysplasia surgery in CP patients.
  • A randomized, double-blind trial with 34 participants showed that those receiving the experimental injection needed significantly less narcotics than those who received a placebo, indicating better pain management.
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Background: Prior studies have shown reduced development of cardiac allograft vasculopathy (CAV) in multiorgan transplant recipients. The aim of this study was to compare the incidence of CAV between isolated heart transplants and simultaneous multiorgan heart transplants in the contemporary era.

Methods: We utilized the Scientific Registry of Transplant Recipients to perform a retrospective analysis of first-time adult heart transplant recipients between January 1, 2010 and December 31, 2019 in the United States.

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Background: Prepectoral implant placement continues to gain widespread acceptance as a safe and effective option for breast reconstruction. Current literature demonstrates comparable rates of complications and revisions between prepectoral and subpectoral placement; however, these studies are underpowered and lack long-term follow-up.

Methods: We performed a retrospective cohort study of patients who underwent immediate two-staged tissue expander or direct-to-implant breast reconstruction at a single center from January 2017 to March 2021.

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We developed and tested MivacunaLA/MyshotLA, a community-informed mobile phone intervention, to increase COVID-19 vaccination among Latino parents/caretakers of minors in under-resourced areas of Los Angeles by addressing misinformation and building trust. We recruited Latino parents/caregivers with at least one unvaccinated child in East and South Los Angeles in the summer of 2021 and evaluated MivacunaLA as a randomized controlled trial with a wait-list control group. A difference-in-difference analysis showed Latino parents/caregivers that participated in MivacunaLA ( = 246), in comparison to the control group, were 15 percentage points more likely ( = 0.

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Introduction: We present the evolution of GHD in adolescent males with persistent growth failure, in whom the diagnosis was established after a second GH stimulation test (GST).

Methods: We performed a retrospective chart review of children who presented for short stature (height less < 2SD for mean/mid-parental height) and/or growth failure (sustained growth velocity < 0 SD) to pediatric endocrinology at Mount Sinai Kravis Children's Hospital, New York and who had 2 GSTs. Data collected from electronic medical records were analyzed using SPSS v28.

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  • This study explored the molecular mechanisms of Fontan-associated liver disease (FALD) by examining gene expression differences in liver fibrosis among patients.
  • Researchers analyzed data from 106 adults with the Fontan circulation, identifying upregulated genes in those with advanced fibrosis and assessing clinical outcomes.
  • Findings revealed that patients with advanced fibrosis had increased inflammation and vascular development gene activity, but these did not predict clinical outcomes like serious complications.
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Previous studies have documented longer treatment times and worse outcomes for patients with ST-elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention (PCI) during the COVID-19 pandemic. The objective of the present study was to evaluate the impact of the COVID-19 pandemic on treatment times and outcomes for patients with STEMI who underwent primary PCI within a regional system of care. This was a retrospective study using data from the Los Angeles County Emergency Medical Services Agency.

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Transgenic T-cell receptor (TCR) T cell-based adoptive cell therapies for solid tumors are associated with dramatic initial response rates, but there remain many instances of treatment failure and disease relapse. The association of infusion product cytokine profiles with clinical response has not been explored in the context of TCR T-cell therapy products. Single-cell antigen-dependent secretomic and proteomic analysis of preinfusion clinical TCR T-cell therapy products revealed that TNFα cytokine functionality of CD8+ T cells and phospho-STAT3 signaling in these cells were both associated with superior clinical responsiveness to therapy.

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Introduction: Youth in under-resourced communities are more likely to have greater social risk factors for mental health needs yet have less access to needed care. School-based mental health services are effective in treating common disorders such as adolescent depression; however, few have a family-centered approach, which may especially benefit specific populations.

Methods: Utilizing a community-partnered approach, we adapted an established, trauma-informed, resilience skill-building family intervention for adolescents with depression.

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Background: Fibroblast growth factor 23 (FGF23) is a bone-derived hormone that plays a central role in chronic kidney disease-mineral bone disorder and is associated with CKD progression and cardiovascular morbidity. Factors related to CKD-associated anemia, including iron deficiency, can increase FGF23 production. This study aimed to assess whether anemia and/or iron deficiency are associated with increased circulating concentrations of FGF23 in the large, well-characterized Chronic Kidney Disease in Children (CKiD) study cohort.

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Objective: To evaluate the impact of age and COVID-19 variant time period on morbidity and mortality among those hospitalized with COVID-19.

Patients And Methods: Patients from the American Heart Association's Get With The Guidelines COVID-19 cardiovascular disease registry (January 20, 2020-February 14, 2022) were divided into groups based on whether they presented during periods of wild type/alpha, delta, or omicron predominance. They were further subdivided by age (young: 18-40 years; older: more than 40 years), and characteristics and outcomes were compared.

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Introduction: Despite a growing number of older lesbian, gay, bisexual transgender, and queer (LGBTQ) adults in the United States, education on care for this vulnerable population has historically been inadequate across all levels of training. This research assessed the extent of LGBTQ education in geriatric medicine fellowship curricula across the United States.

Methods: We designed a survey to anonymously collect information from geriatric medicine fellowship programs on LGBTQ curricular content.

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Objective: To identify structural factors associated with the receipt of mental health care treatment among Black women in California during pregnancy and after childbirth.

Design: Secondary analysis of data from the population-based Listening to Mothers in California survey.

Participants: The sample included 194 non-Latina Black women in the postpartum period.

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Background: The molecular mechanisms underlying Fontan associated liver disease (FALD) remain largely unknown. We aimed to assess intrahepatic transcriptomic differences among patients with FALD according to the degree of liver fibrosis and clinical outcomes.

Methods: This retrospective cohort study included adults with the Fontan circulation at the Ahmanson/UCLA Adult Congenital Heart Disease Center.

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Objective: To evaluate single-pass loop electrosurgical excision procedure (LEEP-SP) versus LEEP with top hat (LEEP-TH) in terms of treatment failure defined as high-grade squamous intraepithelial lesion (HSIL) cytology within 2 years' follow-up.

Methods: This single-institution cohort study used a prospectively collected cervical dysplasia database including all patients who underwent LEEP-SP or LEEP-TH for biopsy-proven cervical intraepithelial neoplasia between 2005 and 2019.

Results: Of 340 patients included, 178 underwent LEEP-SP and 162 LEEP-TH.

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A major complication of chimeric antigen receptor (CAR) T-cell therapy is immune effector cell-associated neurotoxicity syndrome (ICANS), which presents as aphasia, confusion, weakness, somnolence, seizures, and coma. This is similar to the neurologic manifestations of hypophosphatemia, which can result from sudden increases in metabolic demand for phosphorylated intermediates (e.g.

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Background: In the era of molecular stratification and effective multimodality therapies, surgical staging of the axilla is becoming less relevant for patients with estrogen receptor (ER)-positive early-stage breast cancer (EBC). Therefore, a nonsurgical method for accurately predicting lymph node disease is the next step in the de-escalation of axillary surgery. This study sought to identify epigenetic signatures in the primary tumor that accurately predict lymph node status.

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