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Background: The COVID-19 pandemic has affected millions globally, and still continues to do so. Regarding the cardiovascular influences of COVID-19, this study aimed to investigate the relationship between cardiac indices, particularly cardiac output (CO), and severity of disease. Methods: This retrospective cohort study was conducted on intubated COVID-19 patients admitted to the intensive care unit (ICU). The study involved analyzing data from mechanically ventilated patients, excluding those with preexisting cardiovascular or pulmonary comorbidities. Hemodynamic parameters were evaluated by ultrasonic cardiac output monitoring (USCOM), and the severity of disease was evaluated by acute physiology and chronic health evaluation (APACHE II) and sequential organ failure assessment (SOFA) scoring systems. Results: The study included 41 patients, predominantly male with an average age of 63.1 years. Hemodynamic parameters and scores were reported for 6 days. This showed significant changes in CO, SOFA, and APACHE II over time (with P = 0.02, 0.04, 0.03, respectively). A negative correlation was found between CO and both SOFA and APACHE II scores (P < 0.05), indicating that as CO increased, the severity scores decreased. Conclusion: This study emphasizes the importance of continuous hemodynamic monitoring in ICU settings for COVID-19 patients. The correlation between CO and severity scores suggests that USCOM, along with APACHE II and SOFA, can be crucial in assessing the dynamic clinical state of patients, contributing to better management and potentially improving outcomes.

Background: The COVID‑19 pandemic has affected millions globally, and still continues to do so. Regarding the cardiovascular influences of COVID-19, this study aimed to investigate the relationship between cardiac indices, particularly cardiac output (CO), and severity of disease. Methods: This retrospective cohort study was conducted on intubated COVID-19 patients admitted to the intensive care unit (ICU). The study involved analyzing data from mechanically ventilated patients, excluding those with preexisting cardiovascular or pulmonary comorbidities. Hemodynamic parameters were evaluated by ultrasonic cardiac output monitoring (USCOM), and the severity of disease was evaluated by acute physiology and chronic health evaluation (APACHE II) and sequential organ failure assessment (SOFA) scoring systems. Results: The study included 41 patients, predominantly male with an average age of 63.1 years. Hemodynamic parameters and scores were reported for 6 days. This showed significant changes in CO, SOFA, and APACHE II over time (with P = 0.02, 0.04, 0.03, respectively). A negative correlation was found between CO and both SOFA and APACHE II scores (P < 0.05), indicating that as CO increased, the severity scores decreased. Conclusion: This study emphasizes the importance of continuous hemodynamic monitoring in ICU settings for COVID-19 patients. The correlation between CO and severity scores suggests that USCOM, along with APACHE II and SOFA, can be crucial in assessing the dynamic clinical state of patients, contributing to better management and potentially improving outcomes. [ABSTRACT FROM AUTHOR]

Cardiac output is considered an important parameter when assessing the cardiovascular status of a critically ill patient. Both non-invasive (e.g. bioimpedance, echocardiography) and invasive methods (Swan Ganz catheter) have been used to measure cardiac output. The ultrasonic cardiac output monitoring device provides a new method of non-invasively assessing cardiac output in various clinical settings. The ultrasonic cardiac output monitoring device was introduced clinically in 2001, and appears to be a promising adjunct in the assessment of the cardiovascular state in a variety of patient cohorts. In this short review article, we will introduce this new technique, discuss the required skills and compare it with methods already in use. In particular, a critical comparison with the ‘gold standard’, the invasive measurement of cardiac output with the pulmonary artery catheter, will be given. [ABSTRACT FROM AUTHOR]