Abstract

Research Article

Peripheral perfusion index in critically ill COVID-19 and its association with multiorgan dysfunction

Cornu Matias German*, Tonelier Matias, Roel Pedro, Sanhueza Laura, Orozco Sergio Martin, Sepulveda Mariana Elizabet, Svampa Silvana Enrica and Arana Osorio Erick and Martinuzzi Andres Luciano Nicolas

Published: 08 May, 2023 | Volume 8 - Issue 1 | Pages: 004-013

Introduction: Severe cases of COVID-19 presented a high incidence of multi-organ dysfunction syndrome (MODS) during their evolution. This was attributed to a theoretical cytokine storm, where microcirculatory disorders would play a fundamental role, causing these patients to present a sepsis-like pattern as observed in sublingual microcirculation studies. The evidence in this regard is controversial. The Peripheral Perfusion Index is a reliable method to continuously and non-invasively assess the microcirculatory bed, which assesses the pulsatile (PPI) component of the plethysmographic pulse curve.
Methods: We conducted a prospective observational study to evaluate the behavior of the PPI in patients with severe respiratory failure due to SARS-CoV-2 and its association with SDOM.
Results: We evaluated 60 patients with APACHE II 14.6 ± 4.4 and SOFA 4.7 ± 2.1. 55% of the patients presented SDOM. Perfusion monitoring showed IP values of 5.32 ± 1.87 that were associated with normal lactate levels of 1.49 mmol/L (min 0.89/ max 2.20 mmol/L). The PPI values between the living and the dead did not show a significant difference (p = 0.854) or the presence of SDOM.
The PPI values between the patients who presented renal failure, hemodynamics, or perfusion disorders were determined by the presence of hyperlactatemia, and for those who did not present these characteristics, no statistical difference was found; neither when stratified by PaFiO2 ratio. Mortality was 55%.
Conclusion: In our series of patients with severe pneumonia due to COVID-19, we found high PPI values, which would correspond to a pattern of capillary recruitment, and the associated organ injury could not be substantiated by this phenomenon.

Read Full Article HTML DOI: 10.29328/journal.jcicm.1001043 Cite this Article Read Full Article PDF

Keywords:

COVID-19; Multiorgan dysfunction; Peripheral perfusion index; Outcomes; Mortality; Critically ill

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