Publications by authors named "Matthew J Pierce"

Article Synopsis
  • The Shock Academic Research Consortium (SHARC) created standardized definitions for cardiogenic shock (CS) to improve classification in clinical settings and studies.
  • A study using these definitions observed a total of 8,974 patients, finding that 65% had isolated CS, with significant variations in causes such as acute myocardial infarction and heart failure.
  • Results indicated that patients with mixed CS had the highest mortality rate (48%), while acute-on-chronic heart failure presented the lowest (25%), highlighting the need for targeted treatment strategies based on CS subtypes.
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Background: Associations of early changes in vasoactive support with cardiogenic shock (CS) mortality remain incompletely defined.

Methods: The Critical Care Cardiology Trials Network is a multicenter registry of cardiac intensive care units. Patients admitted with CS (2018-2023) had vasoactive dosing assessed at 4 and 24 hours from cardiac intensive care unit admission and quantified by the vasoactive-inotropic score (VIS).

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Article Synopsis
  • Previous studies show variability in cardiac intensive care unit (CICU) length of stay (LOS), but lacked detailed risk assessments upon admission, prompting a new evaluation of LOS and its link to in-hospital mortality across different hospitals.
  • Analysis of 22,862 admissions from 35 CICUs over five years revealed a median CICU LOS of 2.2 days, with longer stays associated with younger patients having more comorbidities and higher mortality rates across tertiles of LOS.
  • The study concluded that significant differences in CICU LOS exist and that longer LOS correlates with increased risk of in-hospital mortality, suggesting improvements in CICU planning and resource use are necessary.
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Background: Expert opinion and professional society statements have called for multi-tier care systems for the management of cardiogenic shock (CS). However, little is known about how to pragmatically define centers with different levels of care (LOC) for CS.

Methods: Eleven of 23 hospitals within our healthcare system sharing a common electronic health record were classified as different LOC according to their highest mechanical circulatory support (MCS) capabilities: Level 1 (L-1)-durable left ventricular assist device, Level 1A (L-1A)-extracorporeal membrane oxygenation, Level 2 (L-2)-intra-aortic balloon pump and percutaneous ventricular assist device; and Level 3 (L-3)-no MCS.

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Individual differences in sociodemographic characteristics and trait-like perceptions of opportunities and constraints may shape responses to adversities such as the onset of the COVID-19 pandemic. However, little is known about how these factors combine to form multifaceted profiles of developmental opportunity and constraint or the implications of such profiles for longitudinal well-being following major life stressors. Using a national sample of U.

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Aims: The aims of the Critical Care Cardiology Trials Network (CCCTN) are to develop a registry to investigate the epidemiology of cardiac critical illness and to establish a multicentre research network to conduct randomised clinical trials (RCTs) in patients with cardiac critical illness.

Methods And Results: The CCCTN was founded in 2017 with 16 centres and has grown to a research network of over 40 academic and clinical centres in the United States and Canada. Each centre enters data for consecutive cardiac intensive care unit (CICU) admissions for at least 2 months of each calendar year.

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Objective: This study used a canine model of abdominal aortic aneurysms (AAAs) to compare intra-aneurysmal pressure and thrombus formation after exclusion with Dacron and expanded polytetrafluoroethylene (ePTFE) stent-grafts.

Methods: Prosthetic AAAs with implanted strain-gauge pressure transducers were treated by stent-graft exclusion using Food and Drug Administration-approved devices in 10 mongrel dogs: five Dacron (AneuRx) and five ePTFE (original Excluder). Intra-aneurysmal pressure was measured over 4 weeks after AAA exclusion and indexed to the systemic pressure, represented as a percentage of a simultaneously obtained systemic pressure (value = 1.

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