Publications by authors named "M Pereyra"

Background: Immune checkpoint inhibitor (ICI) therapy has dramatically improved the prognosis for some cancers but can be associated with myocarditis, adverse cardiovascular events, and mortality.

Objectives: The aim of this study was to develop an artificial intelligence (AI) model to predict the increased likelihood for the development of ICI-related myocarditis and adverse cardiovascular events.

Methods: Cancer patients treated with ICI at a tertiary institution from 2011 to 2022 were reviewed.

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Bioprosthetic aortic valve degeneration (BAVD) is a significant clinical concern following both transcatheter aortic valve replacement (TAVR) and surgical aortic valve replacement (SAVR). The increasing use of bioprosthetic valves in aortic valve replacement in younger patients and the subsequent rise in cases of BAVD are acknowledged in this review which aims to provide a comprehensive overview of the incidence, diagnosis, predictors, and management of BAVD. Based on a thorough review of the existing literature, this article provides an updated overview of the biological mechanisms underlying valve degeneration, including calcification, structural deterioration, and inflammatory processes and addresses the various risk factors contributing to BAVD, such as patient demographics, comorbidities, and procedural variables.

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Article Synopsis
  • The study analyzes bacteremia and antibiotic resistance in Gram-negative bacilli among patients with hematological malignancies and those undergoing hematopoietic stem cell transplants across different geographic regions.
  • It includes 1,277 cases of bacteremia, revealing that Gram-negative bacilli were present in 60.3% of episodes, with a notable occurrence of multidrug-resistant organisms (MDROs) affecting 40.2% of these infections.
  • Key risk factors for 30-day mortality identified include relapse of underlying disease, use of corticosteroids, and the presence of resistant bacteria, emphasizing the high mortality associated with carbapenem-resistant cases.
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The assessment of left atrial strain (LAS) has emerged as an essential component in the evaluation of cardiac function, especially in pathologies such as heart failure and atrial fibrillation. This narrative review aims to outline the available methods for assessing LAS with a major emphasis on speckle-tracking echocardiography techniques. Other imaging modalities, including cardiac magnetic resonance and cardiac computed tomography, also provide important information on LA dynamics but have disadvantages with respect to cost and availability.

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Article Synopsis
  • - The study aimed to find opportunities for improving antibiotic stewardship (AS) in medical-surgical intensive care units (MS-ICUs) and general wards (Gral-wards) across 41 hospitals in Latin America from March 2022 to February 2023.
  • - Data was collected on antimicrobial use (AU) from 5780 MS-ICU and 7726 Gral-ward patients, revealing a 53.5% AU prevalence in MS-ICUs and 25.5% in Gral-wards, with a significant portion of antibiotics used for treating infections and surgical prophylaxis.
  • - The study highlighted key areas for improvement in AU practices, including better antibiotic selection, the need for de
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