Association between Coronary Artery Calcium Burden and Multiple Organ Dysfunction Syndrome in Critically Ill Patients with COVID-19
Abstract
Background: In this study, we aimed to examine the association between coronary artery calcium (CAC) burden and the severity of multiple organ dysfunction syndrome (MODS) in mechanically ventilated patients with COVID-19.
Methods: We retrospectively evaluated 160 patients with COVID-19 who required invasive mechanical ventilation and were admitted to the intensive care unit. CAC was assessed visually on nongated, noncontrast chest computed tomography (CT) using a semiquantitative Weston scoring system. The extent of organ dysfunction was quantified using the Sequential Organ Failure Assessment (SOFA) score. Associations between CAC burden and SOFA score were examined using the Pearson correlation and one-way analysis of variance, while independent associations were evaluated using multivariable linear regression.
Results: The mean (SD) SOFA score was 5.15 (2.73), and the mean (SD) CAC burden was 4.02 (3.31). In the overall cohort, CAC burden was positively correlated with SOFA score (r=.260; P=.001). This association was more pronounced among patients without pre-existing comorbidities (r=.402; P=.002). However, CAC burden was not independently associated with SOFA score in the multivariable regression model (β=0.009; P=.91). Age (β=0.043; P=.01) and chronic kidney disease (β=2.648; P<.001) were the principal independent correlates of SOFA score after adjustment for clinical covariates.
Conclusion: Although higher CAC burden was associated with higher SOFA scores in unadjusted analyses, this relationship was not independent after multivariable adjustment. CAC assessment on nongated chest CT may provide contextual information regarding underlying vascular disease; however, it should not be interpreted as an isolated marker of organ dysfunction severity, and its incremental clinical value requires confirmation in larger prospective studies.
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| COVID-19 Coronary Artery Calcification (CAC) SOFA Score Mechanical Ventilation Chest CT Multiple Organ Dysfunction Syndrome | ||
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