Juan Carlos Rivas

Factorial structure of the patient health questionnaire-9 in long-term survivors of severe COVID-19

Juan Carlos Rivas, Anita Restrepo, Mario Miguel Barbosa, Brayan Daniel Cordoba-Melo et autres

Introduction Depression is prevalent among survivors of severe COVID-19, yet psychometric evidence for screening instruments in this population remains limited, particularly in Latin America. The factor structure of the Patient Health Questionnaire-9 (PHQ-9) remains unclear in long-term survivors of severe COVID-19. This …

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Long-Term Mental Health Evaluation After COVID-19: Insights From the CARDIO COVID 20–21 Registry

Juan Carlos Rivas, Brayan Daniel Cordoba-Melo, Juan Pablo Arango-Ibañez, Sebastián Seni-Molina et autres

Background: Psychopathological manifestations are key features of long COVID, contributing to a considerable global mental health burden. Neuropsychiatric sequelae such as anxiety, depression, cognitive dysfunction, and perceived stress may persist for months or years after infection. Latin American populations remain underrepresented, despite …

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Young-Onset Dementia: Clinical Findings and Factors That Delay Early Diagnosis—A Retrospective Observational Study

Juan Carlos Rivas, Mauricio Hernández, Jose Miguel Erazo, Oscar Arango et autres

Background/Objectives: Young-onset dementia (YOD) is a form of dementia where symptoms appear before the age of 65 years with a worse course, a poorer prognosis, and a lower survival rate than late-onset dementia. Psychiatric disorders often entail confusion, which delays their diagnosis …

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Case of early onset Alzheimer’s disease associated with a novel PSEN1 variant identified in Colombia

Lina Maria Zapata‐Restrepo, Bruce Leonard Miller, Juan Carlos Rivas, Katherine L. Possin et autres

Early-onset Alzheimer's disease (EOAD) is a rare form of dementia that often progresses more quickly than late-onset cases, and is more commonly associated with autosomal dominant mutations. A 47-year-old male presented with progressive cognitive and behavioral decline, a family history of EOAD, …

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Patient with Progressive Supranuclear Palsy Initially Diagnosed as Anxiety and Depression

María Camila Mejía Arias, Juan Carlos Rivas, María Paulina Cortés Palacio, María Isabel Motta Martínez

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Latin American Trans‐ancestry INitiative for OCD genomics (LATINO): Study protocol

Ygor Arzeno Ferrão, Paola Giusti‐Rodríguez, Alexie Vallejo‐Silva, Gabriel Lázaro‐Muñoz et autres

Obsessive-compulsive disorder (OCD) is a debilitating psychiatric disorder. Worldwide, its prevalence is ~2% and its etiology is mostly unknown. Identifying biological factors contributing to OCD will elucidate underlying mechanisms and might contribute to improved treatment outcomes. Genomic studies of OCD are beginning …

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Chronic Use of Benzodiazepine in Older Adults and Its Relationship with Dementia: A Systematic Review and Meta-Analysis

Juan Carlos Rivas, Mauricio Hernández, Jose Miguel Erazo, Carlos González et autres

LEARNING OBJECTIVE: After participating in this CME activity, the psychiatrist should be better able to:• Explain current understanding of the relationship between chronic benzodiazepine use and dementia. BACKGROUND: Chronic use of benzodiazepines (BZ) for managing conditions such as anxiety disorders, depression, sleep …

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Caracterización clínica y sociodemográfica de pacientes con infección SARS-CoV-2 en un hospital psiquiátrico

María Corina Ochoa Rojas, Luisa Fernanda Daza Cardona, Laura Marcela Barón Castaño, Mauricio Hernández-Carillo et autres

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P49: Sociodemographic and Clinical Insights into Behavioral Variant Frontotemporal Dementia and Early-Onset Alzheimer’s Disease in Colombia: A Comprehensive Study of Patients and Caregivers

Lina Maria Zapata‐Restrepo, Katherine L. Possin, Isabel Elaine Allen, Juan Carlos Rivas et autres

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Risk of corrected QT interval prolongation in patients receiving antipsychotics

Juan Carlos Rivas, Juliana Galindo-A, Luis Fernando Zambrano, Carlos Alberto Miranda-B et autres

Antipsychotic (AP) use has been associated to QT interval prolongation on the surface electrocardiogram (ECG). Our study aimed to determine the incidence of corrected QT (QTc) interval prolongation among patients admitted to a psychiatric hospitalization unit requiring AP treatment and to assess …

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Intervenciones relacionadas con la sobrecarga del cuidador del paciente con diagnóstico de enfermedad de Alzheimer: una revisión sistemática

Natalia Cristina Aldana Alzate, William Fernando Pérez Muñoz, María Juliana Martínez Latorre, Carlos Andrés Gonzales Begambre et autres

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Factorial Structure of the Patient Health Questionnaire-9 in long-term survivors of severe COVID-19 (Preprint)

Juan Carlos Rivas, Anita Restrepo, Mario Miguel Barbosa, Brayan Daniel Córdoba‐Melo et autres

BACKGROUND Previous investigations related to the factor structure of the Patient Health Questionnaire (PHQ-9) have yielded inconclusive results, and there is little consensus about the optimal arrangement of its components. OBJECTIVE This study aim to examine the psychometric properties of the nine-item …