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Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device
Published on: September 24, 2020
[Clinical characteristics related to mortality by COVID-19 in intensive care]
Josué Israel López-Valdés1, Rubén Alejandro Ponce-Mendoza1, Miguel Solís-Barraza2
1Instituto Mexicano del Seguro Social, Hospital General Regional No. 66, Unidad de Cuidados Intensivos. Ciudad Juárez, Chihuahua, México.
Background:
The COVID-19 pandemic caused hospital reconversion throughout Mexico and it was scarce information about its development in second-level intensive care units (ICU).
Objective:
To determine the clinical characteristics related to COVID-19 mortality in a second-level ICU.
Material And Methods:
Observational, cohort, retrospective, and analytical study. Demographic variables, medical history, as well as clinical, ventilatory and laboratory characteristics, and complications of patients admitted to ICU from March to November 2020 due to acute respiratory failure were recorded. Patients were divided into two groups: improvement or death. Lost data were imputed by normal multivariated regression. Descriptive statistics and inferencial analysis were made to determine the risk of significant variables against the death outcome with Cox regression.
Results:
60% of patients were male. In-hospital mortality was 55%. An older age (44.4 ± 12.1 vs. 50.7 ± 12.1, p = 0.01), higher APACHE II score (8 (10-13) vs. 15 (11-21), p < 0.001), larger onset-symptom time to ICU (10.1 ± 4.0 vs. 12.0 ± 5.3 days, p = 0.049) and a lower oxygen saturation (78.2 ± 16.%5 vs. 71.1 ± 17.9%, p = 0.017) were significantly asociated characteristics to mortality. Average of stay at ICU was 8 days.
Conclusions:
A higher age, more days from beginning of symptoms to hospital admission, and lower oxygenation at admission were pre-admission determining factors for risk of death, while cardiovascular, renal complications and hyperglycemia were the in-hospital determinants.
Insights
Older age, longer symptom duration, and lower oxygen saturation are key predictors of COVID-19 mortality in intensive care units (ICUs). Cardiovascular and renal complications, along with hyperglycemia, also significantly impact patient outcomes.
Area of Science:
- Critical Care Medicine
- Infectious Diseases
- Epidemiology
Background:
- The COVID-19 pandemic necessitated widespread hospital restructuring in Mexico.
- There was limited information regarding COVID-19 patient development in second-level intensive care units (ICUs).
Purpose of the Study:
- To identify clinical characteristics associated with COVID-19 mortality in a second-level ICU.
- To analyze risk factors contributing to death in critically ill COVID-19 patients.
Main Methods:
- An observational, retrospective cohort study was conducted from March to November 2020.
- Data included demographics, medical history, clinical, ventilatory, and laboratory characteristics, and complications.
- Cox regression analysis was used to determine significant risk factors for mortality.
Main Results:
- In-hospital mortality was 55% among the studied ICU patients.
- Older age, higher APACHE II scores, longer onset-to-ICU time, and lower oxygen saturation were significantly associated with mortality.
- The average ICU stay was 8 days.
Conclusions:
- Pre-admission factors for mortality risk include advanced age, delayed symptom-to-hospital admission, and low oxygenation.
- In-hospital determinants of mortality involve cardiovascular complications, renal complications, and hyperglycemia.
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