Carrillo-Esper R, Núñez-Bacarreza JJ, Carrillo-Córdova JR

Idioma: Español
Referencias bibliográficas: 26
Paginas: 165-171
Archivo PDF: 503.68 Kb.

RESUMEN

La hipoperfusión tisular contribuye al desarrollo de disfunciones orgánicas, por lo que deberá de ser monitoreada en el perioperatorio en los enfermos de alto riesgo. Desafortunadamente las variables rutinariamente monitoreadas como la presión arterial, frecuencia cardíaca, diuresis, gases arteriales y presiones de llenado no necesariamente reflejan la perfusión tisular. La saturación venosa mixta de oxígeno (SvO₂) y la saturación venosa central de oxígeno (SvcO₂) son mejores indicadores del aporte de oxígeno tisular (DO₂) y de la perfusión. El monitoreo de la SvO₂ refleja el balance entre el DO₂ y consumo de oxígeno (VO₂). Las mediciones se pueden tomar intermitentemente por gasometrías venosas y cooximetría o de manera continua a través de un catéter de fibra óptica, técnica que es la indicada en la práctica clínica. Diferentes estudios clínicos han demostrado su utilidad en diferentes estados de choque, cirugía mayor, trauma, insuficiencia cardíaca y durante maniobras de reanimación cardiopulmonar.

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