Presión Venosa Central (PVC) a través de una técnica de ultrasonografía enfocada a la cabecera del paciente (POCUS) en una población de pacientes adultos hospitalizados en Unidad de Cuidados Intensivos (UCI) : Estudio de correlación
| dc.contributor.advisor | Espinosa Almanza, Carmelo José | |
| dc.contributor.advisor | Ruiz Ávila, Héctor Andrés | |
| dc.contributor.author | Támara Rivera, Jorge Leonardo | |
| dc.contributor.orcid | Támara Rivera, Jorge Leonardo [000000022117585X] | |
| dc.contributor.researchgroup | Grupo de interés en ultrasonografía enfocada HUN | |
| dc.date.accessioned | 2025-11-18T15:50:42Z | |
| dc.date.available | 2025-11-18T15:50:42Z | |
| dc.date.issued | 2025 | |
| dc.description | ilustraciones, diagramas | spa |
| dc.description.abstract | Introducción: La presión venosa central (PVC), como uno de los principales determinantes del retorno venoso, representa un parámetro fundamental en el monitoreo hemodinámico del paciente críticamente enfermo. Aunque el cateterismo cardíaco derecho (CCD) es considerado el estándar de oro para su medición, su carácter invasivo y limitado uso rutinario han motivado la implementación de estrategias alternativas menos invasivas, como el uso de un catéter venoso central (CVC) acoplado a un transductor electrónico (TE). En este contexto, el ultrasonido a pie de cama (POCUS, por sus siglas en inglés) ha surgido como una herramienta no invasiva prometedora para la estimación de la PVC. Objetivo principal: Determinar la correlación entre los valores de PVC estimados mediante una técnica basada en ultrasonido (POCUS), comparados con la medición obtenida a través de un CVC con TE, en pacientes críticamente enfermos ingresados a una unidad de cuidados intensivos (UCI) de carácter general. Diseño y métodos: Se llevó a cabo un estudio observacional analítico con pacientes consecutivos críticamente enfermos en UCI. Se seleccionaron aquellos que contaban con un CVC y monitoreo de la PVC por TE. La estimación ecográfica de la PVC (PVC US) se realizó según la técnica descrita por Istrail et al., que incorpora la profundidad de la aurícula derecha (PAD) y la altura de distensión de la vena yugular interna (ADVY). Posteriormente, se evaluó la correlación entre los valores obtenidos mediante el método ecográfico y la medición por TE así como las características operativas de la prueba. Resultados: Se incluyeron 75 pacientes, de los cuales el 21,3% presentó una PVC ≥ 10 mmHg medida por TE. Se observó una correlación lineal positiva entre los valores de PVC obtenidos por TE y por PVC US, con un coeficiente de correlación de Pearson R = + 0,61 (p < 0,000). No obstante, la correlación en los subgrupos con PVC < 10 mmHg y > 10 mmHg fue baja, con valores de R = + 0,048 y R = + 0,083, respectivamente. En el análisis de capacidad discriminativa para detectar una PVC ≥ 10 mmHg, tanto la PVC US como la ADVY mostraron desempeños similares. Sin embargo, al analizar el punto de corte de PVC > 5 mmHg, la técnica PVC US presentó un área bajo la curva (ABC) de 0,81, superando en todo el rango de especificidad al valor obtenido con la ADVY. Conclusión: La técnica de estimación ecográfica de la PVC mediante la suma de la PAD y la ADVY, descrita por Istrail et al., constituye una estrategia factible, segura y con rendimiento diagnóstico comparable al de otras técnicas previamente reportadas. Sus resultados sugieren aplicabilidad en la población de pacientes críticamente enfermos, especialmente en el rango de presiones venosas centrales bajas (≤ 5 mmHg), donde podría superar en precisión a la evaluación aislada de la ADVY (Texto tomado de la fuente). | spa |
| dc.description.abstract | Introduction: Central venous pressure, as one of the main determinants of venous return, represents a fundamental parameter in the hemodynamic monitoring of critically ill patients. Although right heart catheterization is considered the gold standard for its measurement, its invasive nature and limited routine use have motivated the implementation of less invasive alternative strategies, such as the use of a central venous catheter coupled with an electronic transducer. In this context, point-of-care ultrasound (POCUS) has emerged as a promising non-invasive tool for CVP estimation. Primary Objective: To determine the correlation between Central Venous Pressure values estimated through an ultrasound-based technique (POCUS) and those obtained via a central venous catheter coupled with an electronic transduce, in critically ill patients admitted to a general intensive care unit. Design and Methods: An analytical observational study was conducted with consecutive critically ill intensive care unit patients. Those with a central venous catheter and central venous pressure monitoring via electronic transducer were selected. The ultrasound estimation of central venous pressure (PVC US) was performed according to the technique described by Istrail et al., which incorporates the depth of the right atrium and the height of the internal jugular vein distension. Subsequently, the correlation between the values obtained via the ultrasound method and those obtained via electronic transducer, as well as the test's operating characteristics, were evaluated. Results: A total of 75 patients were included, of whom 21,3% had a central venous pressure ≥ 10 mmHg as measured by electronic transducer. A positive linear correlation was observed between central venous pressure values obtained via electronic transducer and those from PVC US technique, with a Pearson correlation coefficient R = +0,61 (p < 0,000). However, the correlation in the subgroups with central venous pressure < 10 mmHg and > 10 mmHg was low, with R values of + 0,048 and + 0,083, respectively. In the discriminative capacity analysis to detect a central venous pressure ≥ 10 mmHg, both PVC US and the height of the internal jugular vein distension showed similar performance. However, when analyzing the cutoff point of central venous pressure > 5 mmHg, the PVC US technique presented an area under the curve of 0,81, surpassing the height of the internal jugular vein distension across the entire specificity range. Conclusion: The ultrasound estimation technique for central venous pressure based on the sum of depth of the right atrium and the height of the internal jugular vein distension, as described by Istrail et al., constitutes a feasible, safe strategy with diagnostic performance comparable to previously reported techniques. Its results suggest applicability in the critically ill patient population, particularly in the low central venous pressure range (≤ 5 mmHg), where it may outperform isolated the height of the internal jugular vein distension evaluation in terms of accuracy. | eng |
| dc.description.degreelevel | Especialidades Médicas | |
| dc.description.degreename | Especialista en Medicina Interna | |
| dc.description.methods | Se llevó a cabo un estudio observacional analítico con pacientes consecutivos críticamente enfermos en UCI. Se seleccionaron aquellos que contaban con un CVC y monitoreo de la PVC por TE. La estimación ecográfica de la PVC (PVC US) se realizó según la técnica descrita por Istrail et al., que incorpora la profundidad de la aurícula derecha (PAD) y la altura de distensión de la vena yugular interna (ADVY). Posteriormente, se evaluó la correlación entre los valores obtenidos mediante el método ecográfico y la medición por TE así como las características operativas de la prueba. | |
| dc.description.researcharea | Ultrasonografía Enfocada del paciente crítico | |
| dc.description.sponsorship | No aplica | |
| dc.format.extent | 47 páginas | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.instname | Universidad Nacional de Colombia | spa |
| dc.identifier.reponame | Repositorio Institucional Universidad Nacional de Colombia | spa |
| dc.identifier.repourl | https://repositorio.unal.edu.co/ | spa |
| dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/89131 | |
| dc.language.iso | spa | |
| dc.publisher | Universidad Nacional de Colombia | |
| dc.publisher.branch | Universidad Nacional de Colombia - Sede Bogotá | |
| dc.publisher.faculty | Facultad de Medicina | |
| dc.publisher.place | Bogotá, Colombia | |
| dc.publisher.program | Bogotá - Medicina - Especialidad en Medicina Interna | |
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| dc.rights.accessrights | info:eu-repo/semantics/openAccess | |
| dc.rights.license | Atribución-NoComercial-SinDerivadas 4.0 Internacional | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject.ddc | 610 - Medicina y salud::614 - Medicina Forense; incidencia de lesiones, heridas, enfermedades; medicina preventiva pública | |
| dc.subject.ddc | 610 - Medicina y salud::616 - Enfermedades | |
| dc.subject.lemb | PRESION VENOSA CENTRAL | spa |
| dc.subject.lemb | Central venous pressure | eng |
| dc.subject.lemb | ECOGRAFIA | spa |
| dc.subject.lemb | Ultrasonic imaging | eng |
| dc.subject.lemb | DIAGNOSTICO ULTRASONICO | spa |
| dc.subject.lemb | Diagnosis, ultrasonic | eng |
| dc.subject.lemb | DIAGNOSTICO POR IMAGENES | spa |
| dc.subject.lemb | Diagnostic imaging | eng |
| dc.subject.lemb | CUIDADOS INTENSIVOS (MEDICINA) | spa |
| dc.subject.lemb | Critical care medicine | eng |
| dc.subject.proposal | Ultrasonografía enfocada a la cabecera del paciente | spa |
| dc.subject.proposal | POCUS | spa |
| dc.subject.proposal | Cuidado crítico | spa |
| dc.subject.proposal | Cuidados intensivos | spa |
| dc.subject.proposal | Central venous pressure | spa |
| dc.subject.proposal | Point-of-care ultrasound | eng |
| dc.subject.proposal | Critical care | eng |
| dc.subject.proposal | Intensive care | eng |
| dc.subject.proposal | Intensive care | eng |
| dc.title | Presión Venosa Central (PVC) a través de una técnica de ultrasonografía enfocada a la cabecera del paciente (POCUS) en una población de pacientes adultos hospitalizados en Unidad de Cuidados Intensivos (UCI) : Estudio de correlación | spa |
| dc.title.translated | Central Venous Pressure measurement using a point-of-care ultrasound (POCUS) technique at the bedside in a population of adult patients admitted to the Intensive Care Unit : a Correlation Study | eng |
| dc.type | Trabajo de grado - Especialidad Médica | |
| dc.type.coar | http://purl.org/coar/resource_type/c_bdcc | |
| dc.type.coarversion | http://purl.org/coar/version/c_ab4af688f83e57aa | |
| dc.type.content | Text | |
| dc.type.driver | info:eu-repo/semantics/masterThesis | |
| dc.type.redcol | http://purl.org/redcol/resource_type/TM | |
| dc.type.version | info:eu-repo/semantics/acceptedVersion | |
| dcterms.audience.professionaldevelopment | Estudiantes | |
| dcterms.audience.professionaldevelopment | Investigadores | |
| dcterms.audience.professionaldevelopment | Maestros | |
| dcterms.audience.professionaldevelopment | Público general | |
| oaire.accessrights | http://purl.org/coar/access_right/c_abf2 | |
| oaire.fundername | Hospital Universitario Nacional de Colombia |
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