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2023, Number 2

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Med Crit 2023; 37 (2)

High shock index as a risk factor for organ dysfunction progression: prospective cohort

Pereyra-Guzmán E, Toledo-Salinas O

Language: Spanish
References: 25
Page: 106-112
PDF size: 231.85 Kb.


ABSTRACT

Introduction: the relationship between heart rate and systolic blood pressure has been called shock index (SI). The progressive organ dysfunction (POD) is associated with increased mortality. Objective: to determine whether elevated shock index is a risk factor for POD in patients with circulatory shock. Material and methods: observational and prospective study in patients with circulatory shock. The shock index at admission, 24, 48 and 72 hours was calculated. A shock index > 0.70 beats per minute/mmHg was considered elevated. POD was defined as an increase in the SOFA score (Sequential Organ Failure Assessment) ≥ 2 points at 72 hours. Logistic regression analysis was performed to calculate the strength of association of the shock index with POD. Results: 90 patients were analyzed, 64.4% of participants had elevated shock index with median of 0.94 (0.81-1.15) beats per minute/mmHg. The percentage of POD in the group with high shock index was 25.86% vs 9.37%, p = 0.09. Multivariate logistic regression analysis showed an OR of 4.11 (1.00-16.92), p = 0.05 for the elevated shock index. Conclusions: the shock index > 0.70 beats per minute/mmHg on admission is a risk factor for POD in patients with circulatory shock.


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