Background The pathophysiology of CS is complex and is associated with increased inflammation and impaired vascular tone. Corticosteroids are recommended in septic shock and have been proposed as a potential treatment for other types of shock. Objectives We sought to evaluate the clinical outcomes associated with early corticosteroid use in patients with cardiogenic shock (CS). Methods Using a nationally representative database including over 1000 hospitals, we identified adults ≥18 years of age admitted from 2015–2023 with a diagnosis of CS. Patients with adrenal insufficiency, chronic rheumatologic conditions, COVID-19 infection and acute COPD exacerbation were excluded. Using inverse probability treatment weighting (IPTW), we assessed for the association of receiving early corticosteroids (within the first 2 days of admission) versus no early corticosteroids and in-hospital mortality. Results Of the 167,721 identified patients with CS, the mean (SD) age was 65.5 (±15.2) years and 35.0% were women. A total of 13.2% received any corticosteroid within the first 2 days of admission. The most common corticosteroid was hydrocortisone (73.9%). Mortality for those receiving and not receiving early corticosteroids was 48.8% and 29.6% ( p < 0.001), respectively. After IPTW, early corticosteroid use remained associated with a 3.1% (95% confidence interval [CI]: 2.4% to 3.8%, p < 0.001) higher mortality. Among patients with CS and concomitant sepsis, 27.6% received early corticosteroids, which was similarly associated with a higher mortality (weighted mean 5.8% [95% CI: 4.6% to 7.0%, p < 0.001]). Conclusions Approximately 1 in 7 patients with CS received corticosteroids early during their admission, which was associated with higher in-hospital mortality.
Abstract 18546: Vasoactive Medication Variability in Patients With Acute Myocardial Infarction Complicated by Cardiogenic Shock
Background: Patients with acute myocardial infarction complicated by cardiogenic shock (AMI-CS) often require vasoactive medications to maintain organ perfusion. However, there are limited data on the real-world use of vasoactive medications in this population. Methods: We used the Vizient® Clinical Data Base to identify patients aged ≥18 years who were admitted between 2015-2019 with AMI-CS and required mechanical ventilation. We report the proportion of patients receiving vasoactive medications by day as well as site-level variability for vasoactive medication strategies using the median odds ratio (MOR), which quantifies the odds that a patient receives a strategy at two randomly selected sites after adjusting for covariates. Results: We identified 10,758 patients from 160 centers admitted with AMI-CS. The median age was 65.8 years, 29.8% were female, 83.6% received vasoactive medications in the first 5 days, and 56.9% received temporary mechanical support. The most used vasoactive medication on day 1 was norepinephrine (48.2%), followed by epinephrine (31.5%), and dopamine (16.9%) ( Figure ). On day 1, 65.9% and 36.2% of patients receiving vasoactive medications were prescribed ≥2 or ≥3 different medications, respectively, including 111 different combinations. Among patients receiving inotropes (N=4,485), there was a nearly 3-fold difference in milrinone use across sites after accounting for differences in patient characteristics (MOR 2.89; 95% confidence interval [CI]: 2.39-3.38). For patients receiving either norepinephrine, dopamine, or epinephrine on day 1 (N=3,224), there was a nearly 2-fold difference in the use of norepinephrine as a first-line vasopressor across sites (MOR 1.84; 95% CI: 1.59-2.06). Conclusion: Norepinephrine is the most commonly used vasoactive medication in patients with AMI-CS. However, there is substantial site-level variability in vasoactive medication strategies, which require further study.