Pathophysiologic Vasodilation in Cardiogenic Shock and Its Impact on Mortality.
arterial pressure
hospital mortality
microcirculation
shock, cardiogenic
vasoconstriction
Journal
Circulation. Heart failure
ISSN: 1941-3297
Titre abrégé: Circ Heart Fail
Pays: United States
ID NLM: 101479941
Informations de publication
Date de publication:
25 Jul 2024
25 Jul 2024
Historique:
medline:
26
7
2024
pubmed:
26
7
2024
entrez:
25
7
2024
Statut:
aheadofprint
Résumé
Cardiogenic shock (CS) mortality remains near 40%. In addition to inadequate cardiac output, patients with severe CS may exhibit vasodilation. We aimed to examine the prevalence and consequences of vasodilation in CS. We analyzed all patients hospitalized at a CS referral center who were diagnosed with CS stages B to E and did not have concurrent sepsis or recent cardiac surgery. Vasodilation was defined by lower systemic vascular resistance (SVR), higher norepinephrine equivalent dose, or a blunted SVR response to pressors. Threshold SVR values were determined by their relation to 14-day mortality in spline models. The primary outcome was death within 14 days of CS onset in multivariable-adjusted Cox models. This study included 713 patients with a mean age of 60 years and 27% females; 14-day mortality was 28%, and 38% were vasodilated. The median SVR was 1308 dynes•s•cm Pathophysiologic vasodilation is prevalent in CS and independently associated with an increased risk of death. CS vasodilation can be identified by SVR <800 dynes•s•cm
Sections du résumé
BACKGROUND
UNASSIGNED
Cardiogenic shock (CS) mortality remains near 40%. In addition to inadequate cardiac output, patients with severe CS may exhibit vasodilation. We aimed to examine the prevalence and consequences of vasodilation in CS.
METHODS
UNASSIGNED
We analyzed all patients hospitalized at a CS referral center who were diagnosed with CS stages B to E and did not have concurrent sepsis or recent cardiac surgery. Vasodilation was defined by lower systemic vascular resistance (SVR), higher norepinephrine equivalent dose, or a blunted SVR response to pressors. Threshold SVR values were determined by their relation to 14-day mortality in spline models. The primary outcome was death within 14 days of CS onset in multivariable-adjusted Cox models.
RESULTS
UNASSIGNED
This study included 713 patients with a mean age of 60 years and 27% females; 14-day mortality was 28%, and 38% were vasodilated. The median SVR was 1308 dynes•s•cm
CONCLUSIONS
UNASSIGNED
Pathophysiologic vasodilation is prevalent in CS and independently associated with an increased risk of death. CS vasodilation can be identified by SVR <800 dynes•s•cm
Identifiants
pubmed: 39051115
doi: 10.1161/CIRCHEARTFAILURE.124.011827
doi:
Types de publication
Journal Article
Review
Langues
eng
Sous-ensembles de citation
IM