Publications by authors named "Martin Viola"

Selection bias can arise through many aspects of a study, including recruitment, inclusion/exclusion criteria, input-level exclusion and outcome-level exclusion, and often reflects the underrepresentation of populations historically disadvantaged in medical research. The effects of selection bias can be further amplified when non-representative samples are used in artificial intelligence (AI) and machine learning (ML) applications to construct clinical algorithms. Building on the "Data Cards" initiative for transparency in AI research, we advocate for the addition of a participant flow diagram for AI studies detailing relevant sociodemographic and/or clinical characteristics of excluded participants across study phases, with the goal of identifying potential algorithmic biases before their clinical implementation.

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Context: Efforts to reduce the psychological distress of surrogate decision-makers of critically ill patients have had limited success, and some have even exacerbated distress.

Objectives: The aim of this study was to determine the feasibility, acceptability, and preliminary efficacy of EMPOWER (Enhancing and Mobilizing the POtential for Wellness and Resilience), an ultra-brief (∼2-hour), 6-module manualized psychological intervention for surrogates.

Methods: Surrogates who reported significant anxiety and/or an emotionally close relationship with the patient (n=60) were randomized to receive EMPOWER or enhanced usual care (EUC) at one of three metropolitan hospitals.

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Background: Benefits of advance care planning (ACP) have recently been questioned by experts, but ACP is comprised of discrete activities. Little is known about which, if any, ACP activities are associated with patients' greater likelihood of receiving value-concordant end-of-life (EoL) care.

Objectives: To determine which ACP activities [Do-Not-Resuscitate (DNR) order completion, designation of a healthcare proxy (HCP), and/or EoL discussions with physicians], individually and in combination, are associated with the greatest likelihood of receiving value-concordant care, and how results may vary based on patient-reported EoL care priorities.

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Little is known about end-of-life intensive care provided to patients with intellectual disabilities (ID). To identify differences in receipt of end-of-life cardiopulmonary resuscitation (CPR) and endotracheal intubation among adult patients with and without ID and examine whether do-not-resuscitate orders (DNRs) mediate associations between ID and CPR. Exploratory matched cohort study using medical records of inpatient decedents treated between 2012 and 2018.

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Objective: The objectives of this study were to develop and refine EMPOWER (Enhancing and Mobilizing the POtential for Wellness and Resilience), a brief manualized cognitive-behavioral, acceptance-based intervention for surrogate decision-makers of critically ill patients and to evaluate its preliminary feasibility, acceptability, and promise in improving surrogates' mental health and patient outcomes.

Method: Part 1 involved obtaining qualitative stakeholder feedback from 5 bereaved surrogates and 10 critical care and mental health clinicians. Stakeholders were provided with the manual and prompted for feedback on its content, format, and language.

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The death of a close other is a major life stressor that disrupts mental and physical health. Beta-blocker medications are indicated treatments for cardiovascular conditions that may also mitigate psychological distress in the context of stressors by reducing adrenergic activity. We sought to examine observational links between beta-blocker medication use and psychological distress during bereavement.

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Background: We know little about the end-of-life suffering and symptoms of intensive care unit (ICU) decedents in general and those who undergo renal replacement therapy (RRT) in particular.

Objectives: To examine differences in end-of-life suffering and various symptoms' contribution to suffering between ICU decedents who did not undergo RRT, those who underwent RRT for end-stage kidney disease (ESKD), and those who underwent RRT for acute kidney injury (AKI).

Methods: This is a cross-sectional study conducted at a quaternary-level referral hospital September 2015-March 2017.

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Background: Dementia is a leading cause of death among US older adults. Little is known about end-of-life care intensity and do-not-resuscitate orders (DNRs) among patients with dementia who die in hospital.

Aim: Examine the relationship between dementia, DNR timing, and end-of-life care intensity.

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Article Synopsis
  • Critical illness affects not only patients but also their informal caregivers, particularly those making critical decisions, leading to increased mental health risks.
  • The EMPOWER intervention is a new cognitive-behavioral approach aimed at supporting surrogate decision-makers in ICUs to enhance the quality of life for both patients and their caregivers.
  • The effectiveness of EMPOWER will be evaluated through a controlled trial, assessing its impact on mental health outcomes like stress and grief, as well as its acceptability and feasibility among participants.
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Objectives: Telomeres are important structures that are critical for maintaining chromosomal integrity and cell surveillance. The aim of this study was to analyze telomere length in patients with celiac disease (CD), a multifactorial disorder with a strong genetic component that exhibits genomic instability and cancer predisposition, particularly T-cell lymphomas.

Methods: Telomere length measured by telomere restriction fragments (TRF) was studied in small intestinal biopsy (SIB) samples and peripheral blood lymphocytes (PBL) from 20 untreated CD patients, distributed according to the clinical form as four asymptomatic, five monosymptomatic, and 11 polysymptomatic individuals.

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Objective: Serological screening for celiac disease (CD) can detect a large number of otherwise undiagnosed patients based on the sequential evaluation of serological tests and intestinal biopsy. The aim of this study was to compare the screening value for CD of two different protocols for the same community-based population.

Methods: We screened 1,000 consecutive subjects (497 women, age range 16-71 yr) attending a centralized laboratory for obligatory prenuptial blood tests.

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