Cardiac arrest and cardiogenic shock complicating ST-segment elevation myocardial infarction in China: A

Shao-Shuai Liu1, Juan Wang2, Hui-Qiong Tan3,4

  • 1Department of Cardiology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, 758 Hefei Road, Qingdao, Shandong, 266035, China.

Heliyon
|July 29, 2024
PubMed

Insights

Cardiac arrest (CA) and cardiogenic shock (CS) significantly increase 30-day mortality and adverse events in Chinese ST-segment elevation myocardial infarction (STEMI) patients. The combination of CA and CS poses the highest risk, underscoring the need for prompt intervention.

Area of Science:

  • Cardiology
  • Clinical Medicine
  • Public Health

Background:

  • Limited data exists on the combined impact of cardiac arrest (CA) and cardiogenic shock (CS) on Chinese patients with ST-segment elevation myocardial infarction (STEMI).
  • Understanding these effects is crucial for improving prognosis in this high-risk population.

Purpose of the Study:

  • To evaluate the clinical outcomes of STEMI patients experiencing CA and/or CS.
  • To identify risk factors associated with CA or CS in STEMI patients.

Main Methods:

  • A cohort study of 7468 consecutive STEMI patients in China.
  • Patients were categorized into four groups: CA + CS, CA only, CS only, and No CA or CS.
  • Cox proportional hazards regression analysis was used to assess 30-day all-cause death and major adverse cardiovascular events.

Main Results:

  • Cardiac arrest (CA) and cardiogenic shock (CS) occurred in 4.4% and 5.0% of patients, respectively, with a 1.6% experiencing both.
  • The incidence of 30-day mortality and major adverse cardiovascular events significantly increased across groups: No CA or CS, CS only, CA only, and CA + CS.
  • Patients with both CA and CS faced the highest risk of all-cause death (HR 25.259) and major adverse cardiovascular events (HR 19.098) compared to those without CA or CS.

Conclusions:

  • Approximately 11% of Chinese STEMI patients experienced CA, CS, or both.
  • These conditions are independently associated with a substantially increased risk of 30-day mortality and major adverse cardiovascular events.
  • The findings highlight the critical impact of CA and CS on STEMI prognosis in the Chinese population.
Abstract