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. 2021 Jun 19:35:100823.
doi: 10.1016/j.ijcha.2021.100823. eCollection 2021 Aug.

Acute coronary syndrome treatment delay in low to middle-income countries: A systematic review

Lemlem Beza  1 , Sharon L Leslie  2 , Bekele Alemayehu  1 , Rebecca Gary  3
Affiliations

Acute coronary syndrome treatment delay in low to middle-income countries: A systematic review

Lemlem Beza et al. Int J Cardiol Heart Vasc. .

Abstract

Although morbidity and mortality rates are declining for acute coronary syndrome (ACS) in most high-income countries, it is rising at an alarming pace for low to middle income countries (LMICs). A major factor that is contributing to the poor clinical outcomes among LMICs is largely due to prehospital treatment delays. This systematic review was conducted to determine the mean length of time from symptom onset to treatment in LMICs and the sociodemographic, clinical and health system characteristics that contribute to treatment delays. We conducted a comprehensive review of the relevant literature published in English between January 1990 through May 2020 using predefined inclusion and exclusion criteria. Twenty-nine studies were included and time to treatment was defined from ACS symptom onset to first medical contact and dichotomized further as less than or >12-hours. The mean time from symptom onset to first medical contact was 12.7 h which ranged from 10-minutes to 96 h. There was consensus among studies that being older, female, illiterate, living in a rural area, and financially limited was associated with longer treatment delays. Lack of a developed emergency transportation system, poor communication and organization between community facilities and interventional facilities were also cited as major contributors for ACS treatment delays. Findings from this systematic review provide future directions to potentially reduce prehospital delays in LMICs and improve ACS outcomes.

Keywords: Acute coronary syndrome; Low to middle income countries; Prehospital treatment delay.

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Conflict of interest statement

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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