The Utility and Validation of SCAI-CSWG Stages in Patients With Acute Myocardial Infarction-Related Cardiogenic Shock.
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Rajan Rajesh, Al Jarallah Mohammed, Daoulah Amin, Panduranga Prashanth, Elmahrouk Ahmed, Mohamed Al Rawahi Abeer Said, Al Maashani Said, Aloui Hatem M, Aldossari Mubarak Abdulhadi, Yousif Nooraldaem, Noor Husam A, Arabi Abdulrahman, Kim Gi Eun, Safieh Mohamad, Almahmeed Wael, Khan Hassan, Qutub Mohammed A, Alshehri Mohammed, Arafat Amr A, Kanbr Omar, Almarghany Alsayed Ali, Hussien Adnan Fathey, Lotfi Amir, Ghani Mohamed Ajaz, Alzahrani Badr, Aldossari Alaa, Hassan Taher, Alenezi Abdullah, Alharbi Waleed, Jamjoom Ahmed, Abohasan Abdulwali, Dashti Raja, Brady Peter A, Al Zakwani Ibrahim, Gangadhara Rao Golla Maheswara Satya, Al Obaid Laura, AlAwadi Abdullah N
Аннотация
METHODS: We analyzed data from patients with AMICS presenting to multiple centers across the Gulf region between January 2020 and December 2022. Patients were grouped according to SCAI-Cardiogenic Shock Working Group classification: group 1 (SCAI shock stages B/C) and group 2 (SCAI shock stages D/E). Primary end points were survival at 6, 12, 18, and 24 months. Both univariate and multivariate statistical methods were employed in the analysis.
RESULTS: A total of 1513 patients from the Gulf Cardiogenic Shock registry, were included with 31.1% in group 1 and 68.9% in group 2. The median follow-up was 6 months. Survival rates in group 1 were 87%, 72%, 56%, and 48% at 6, 12, 18, and 24 months, respectively, whereas group 2 exhibited survival rates of 66%, 29%, 14%, and 4%, respectively, over the same periods. Survival progressively declined with advancing SCAI shock stages, with stage B having the highest survival rates and stage E the lowest (P < .001). Multivariable Cox regression analysis identified higher SCAI stages as strong predictors of increased mortality, with patients in group 2 having a more than 3-fold higher risk of mortality compared to those in group 1 (hazard ratio, 3.13; 95% CI, 2.40-4.07; P < .001). Additionally, lower left ventricular ejection fraction, advanced age, and the presence of tachyarrhythmias were associated with increased mortality risk.
CONCLUSIONS: This is the first study to validate SCAI-Cardiogenic Shock Working Group stages in a large cohort of patients with AMICS. The SCAI shock staging classification was significantly associated with higher short- and long-term mortality in this cohort, with patients in more advanced stages (D/E) experiencing markedly worse survival outcomes. These findings underscore the utility of SCAI staging in stratifying long-term risk among AMICS patients in the Gulf region. Identification of cardiogenic shock patients at SCAI stages D and E with early hemodynamic monitoring and treating them aggressively with newer mechanical circulatory support in the early stages may improve patient survival.