# Spontaneous coronary artery dissection in regions of non-Western populations: a systematic literature search and scoping review

## TL;DR

This review highlights the lack of data on spontaneous coronary artery dissection in non-Western populations and identifies key gaps in understanding its clinical patterns.

## Contribution

The study provides a scoping review of SCAD in non-Western countries, revealing significant variability and knowledge gaps.

## Key findings

- SCAD prevalence was 1.0% in myocardial infarction patients, rising to 5.0% in females.
- Females made up 54.0% of SCAD patients with a mean age of 51.3 years.
- Conservative revascularization was used in 48.0% of cases, and death rates were similar during hospitalization and follow-up.

## Abstract

Current data on spontaneous coronary artery dissection (SCAD) predominantly originate from Europe or Caucasians with limited information about other ethnicities. This scoping review presents the evidence on SCAD in non-Western countries. The prevalence of SCAD diagnosis was 1.0% [95% confidence interval (95% CI): 0.0–3.0, I2 = 99%] among patients presenting with myocardial infarction, increasing to 5.0% (95% CI: 1.0–16.0, I2 = 99%) among females. The mean age was 51.3 years with females accounting for 54.0% of patients. A conservative revascularization management was reported in 48.0% (95% CI: 32.0–65.0, I2 = 85%) of patients. Antiplatelet therapy was reported as dual (68.0%, 95% CI: 37.0–89.0, I2 = 90%) in only three studies. A death rate (3.0%) was similar during hospitalization and at mean follow-up of 23.42 months. In conclusion, there is a marked variability in the clinical course of patients with SCAD as well heterogeneity among the included studies. This review identified knowledge gaps in our understanding of SCAD in non-Western countries that should be addressed in future prospective studies.

Graphical Abstract