Publications by authors named "Garrie J Haas"

Background: Clinical genetic evaluation of dilated cardiomyopathy (DCM) is implemented variably or not at all. Identifying needs and barriers to genetic evaluations will enable strategies to enhance precision medicine care.

Methods: An online survey was conducted in June 2024 among cardiologist investigators of the DCM Consortium from US advanced heart failure/transplant (HF/TX) programs to collect demographics, training, program characteristics, genetic evaluation practices for DCM, and implementation needs.

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Background: Transvenous endomyocardial biopsy is an invasive procedure which is used to diagnose rejection following an orthotopic heart transplant. Endomyocardial biopsy is widely regarded as low risk with all-cause complication rates below 5% in most safety studies. Following transplant, some patients require therapeutic anticoagulation.

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Article Synopsis
  • The study investigates the genetic factors associated with advanced dilated cardiomyopathy (DCM), particularly focusing on rare genetic variants related to patients requiring devices like left ventricular assist devices (LVAD) or heart transplants (HT).
  • Researchers analyzed data from a diverse group of 1,198 patients enrolled in a precision medicine study, classifying the severity of DCM based on treatment type and assessing genetic variants in 36 related genes.
  • Findings revealed that 26.2% of patients with advanced DCM (LVAD/HT) had pathogenic genetic variants, significantly more than those with only an implantable cardioverter defibrillator (15.9%) or neither treatment (15.0%), indicating a strong genetic link to
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  • - The study investigates the genetic differences in dilated cardiomyopathy (DCM) among Black, Hispanic, and White patients, noting that Black patients face higher familial risk and worse health outcomes compared to White patients, despite most existing genetic data coming from the latter group.
  • - Researchers conducted a cross-sectional study involving over 1,000 patients across various US heart failure centers, focusing on genetic variants in 36 DCM-related genes, classified based on their significance and clinical impact.
  • - Findings revealed that Black patients displayed a lower percentage of clinically actionable genetic variants compared to White patients (8.2% vs 25.5%), particularly in the TTN gene, highlighting potential disparities in genetic influences on DCM severity among different ances
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  • Cardiovascular screening for first-degree relatives (FDRs) of patients with dilated cardiomyopathy (DCM) was studied to determine its effectiveness among those without known familial DCM and across different demographics.
  • The study involved 1,365 adult FDRs who underwent echocardiograms and ECGs, revealing that 14.1% were newly diagnosed with DCM, left ventricular systolic dysfunction (LVSD), or left ventricular enlargement (LVE).
  • The results showed higher diagnosis rates in older FDRs and those with hypertension or obesity, indicating that screening is beneficial for all FDRs, regardless of race or ethnicity.
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  • The DCM Precision Medicine Study aimed to improve the communication of genetic disease risk among first-degree relatives of individuals diagnosed with dilated cardiomyopathy (DCM), focusing on enhancing participation in clinical screenings.
  • A booklet was created to assist probands in conveying the importance of cardiovascular screening to their at-risk family members, and its effectiveness was evaluated in a large controlled trial.
  • Results showed that first-degree relatives of probands who received the booklet had a higher screening completion rate (19.5%) compared to those who did not receive it (16.0%), indicating the booklet's success in motivating screenings.
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This study aims to determine the incidence of all-cause hospitalization in patients with advanced heart failure (AHF) receiving ambulatory continuous, intravenous dobutamine versus milrinone for palliative intent. Despite medical optimization, patients with AHF develop refractory symptoms, resulting in frequent hospitalizations. Previous trials precede modern care standards.

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Background: Coronary angiography to identify coronary artery disease has been foundational to distinguish the cause of dilated cardiomyopathy (DCM), including the assignment of idiopathic or ischemic cardiomyopathy. Late gadolinium enhancement (LGE) with cardiovascular magnetic resonance (CMR) has emerged as an approach to identify myocardial scar and identify etiology.

Methods: The DCM Precision Medicine Study included patients with left ventricular dilation and dysfunction attributed to idiopathic DCM, after expert clinical review excluded ischemic or other cardiomyopathies.

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Article Synopsis
  • Early detection of idiopathic dilated cardiomyopathy (DCM) in at-risk family members can allow for earlier treatment, but most research has focused on White patients, ignoring the higher risks faced by Black patients.* -
  • This study aimed to assess how common familial DCM is among patients with the condition and to determine the risk for first-degree relatives across different racial and ethnic groups.* -
  • The research involved 1,220 DCM patients and their family members, finding a 11.6% prevalence of familial DCM in those studied, which could rise to 29.7% if all relatives were screened.*
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  • Left ventricular assist devices (LVADs) are becoming a popular life-prolonging option for patients with severe heart failure, with newer devices offering longer durability through continuous flow mechanisms.
  • However, these devices are linked to significant complications like gastrointestinal (GI) bleeding due to arteriovenous malformations, leading to the discontinuation of vital blood-thinning therapies and increased health risks.
  • Innovative treatment strategies, including medical therapies and endoscopic procedures, are developing to address these GI issues, though healthcare resource demands for LVAD patients continue to rise, indicating a potential growth in the need for effective interventions.
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Background: Prior to treatment, breast cancer patients are less physically fit compared to peers; during cancer treatment, their fitness typically declines. Depressive symptoms are associated with reduced activity up to 5 years post-treatment, but research has not identified mechanisms linking depression and lower activity. The current study assessed relationships among breast cancer patients' depression and perceived exertion during exercise as well as heart rate, an objective indicator of exertion.

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Aims: This study was designed to evaluate the safety, tolerability and haemodynamic effects of BMS-986231, a novel second-generation nitroxyl donor with potential inotropic, lusitropic and vasodilatory effects in patients hospitalized with decompensated heart failure and reduced ejection fraction (HFrEF).

Methods And Results: Forty-six patients hospitalized with decompensated HFrEF were enrolled into four sequential dose-escalation cohorts in this double-blind, randomized, placebo-controlled Phase 2a study. Patients with baseline pulmonary capillary wedge pressure (PCWP) of ≥20 mmHg and a cardiac index of ≤2.

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Objectives: The AVOID-HF (Aquapheresis versus Intravenous Diuretics and Hospitalization for Heart Failure) trial tested the hypothesis that patients hospitalized for HF treated with adjustable ultrafiltration (AUF) would have a longer time to first HF event within 90 days after hospital discharge than those receiving adjustable intravenous loop diuretics (ALD).

Background: Congestion in hospitalized heart failure (HF) patients portends unfavorable outcomes.

Methods: The AVOID-HF trial, designed as a multicenter, 1-to-1 randomized study of 810 hospitalized HF patients, was terminated unilaterally and prematurely by the sponsor (Baxter Healthcare, Deerfield, Illinois) after enrollment of 224 patients (27.

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Treatment for acutely decompensated heart failure (ADHF) has not changed much in the last two decades. Currently available therapies have variable efficacy and can be associated with adverse outcomes. Natriuretic peptides properties include diuresis, natriuresis, vasorelaxation, inhibition of renin-angiotensin-aldosterone system, and are thus chosen in the treatment of ADHF.

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Nesiritide, a synthetic drug form of human B-type natriuretic peptide, is approved for the early treatment of dyspnea in acute decompensated heart failure. Meta-analyses suggested a risk of worsening renal insufficiency and mortality with its use. Therefore, the Acute Study of Clinical Effectiveness in Decompensated Heart Failure (ASCEND-HF) was designed as a prospective, multicenter, double-blind, randomized trial to examine the use of nesiritide in this common, morbid, and often lethal clinical condition.

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Background: Previous studies suggest that management of ambulatory hemodynamics may improve outcomes in chronic heart failure. We conducted a prospective, observational, first-in-human study of a physician-directed patient self-management system targeting left atrial pressure.

Methods And Results: Forty patients with reduced or preserved left ventricular ejection fraction and a history of New York Heart Association class III or IV heart failure and acute decompensation were implanted with an investigational left atrial pressure monitor, and readings were acquired twice daily.

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This article addresses a question that the authors consider to be somewhat rhetorical: are hemodynamic parameters predictors of mortality? It reviews the specific hemodynamic abnormalities and pathophysiologic consequences distinctive to the patient who has decompensation and addresses the data that implicate abnormal hemodynamics as a treatment target associated with increased mortality. The focus is on patients who have decompensated heart failure, defined as left ventricular systolic dysfunction and an acute, subacute, or gradual worsening of symptoms while receiving optimal medical therapy.

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Although ultrafiltration is currently reserved in most centers for the patient who has not responded to standard intravenous diuretic therapy with advanced congestion, its implementation earlier in the hospitalization may have definite advantages. This approach, however, will require further investigation with specific emphasis on safety and costs.

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Article Synopsis
  • Early intervention and prevention can lessen heart failure's impact on healthcare and enhance patients' quality of life.
  • Traditional assessment methods have poor sensitivity in identifying early signs of heart failure, like increased left ventricular filling pressure.
  • The OptiVol system in certain defibrillators monitors lung fluid levels, accurately predicting hospitalizations with 76.9% sensitivity while supplementing conventional heart failure evaluations.
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Objectives: This study was designed to compare the safety and efficacy of veno-venous ultrafiltration and standard intravenous diuretic therapy for hypervolemic heart failure (HF) patients.

Background: Early ultrafiltration may be an alternative to intravenous diuretics in patients with decompensated HF and volume overload.

Methods: Patients hospitalized for HF with > or =2 signs of hypervolemia were randomized to ultrafiltration or intravenous diuretics.

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Pheochromocytoma is a rare cause of secondary hypertension. It may present atypically as cardiogenic shock with significant morbidity and mortality. We present a patient in cardiogenic shock dependent on an intra-aortic balloon pump and vasopressor support who completely recovered cardiac function within 96 h of hospitalization.

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Due to the poor correlation between symptoms and left ventricular (LV) ejection fraction in a chronic heart failure (HF) population, the ability to identify patients who demonstrate LV functional recovery poses a dilemma for the clinician. Serial echocardiograms are not practical in a large outpatient HF population. Plasma brain natriuretic peptide (BNP) levels have a high predictive value for excluding patients with ventricular dysfunction and therefore could serve as a marker for identifying patients who demonstrate improved LV function.

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