Abstract

ARISTIZABAL O., Dagnovar et al. Assessment of clinical impact and security of a chest pain unit in patients with low and intermediate probability of an acute coronary syndrome. Rev. Colomb. Cardiol. [online]. 2015, vol.22, n.5, pp.207-217. ISSN 0120-5633.  https://doi.org/10.1016/j.rccar.2015.05.005.

Background: Chest pain units (CPU) are an accepted method to assess patients admitted to an emergency department with chest pain with a potential ischemic origin. Yet in Colombia, the customary admission to a CPU in a standardized fashion is scarce and, to our knowledge, the outcome of implementing recognized protocols for chest pain has not been evaluated. Objective: To assess the clinical impact and security of CPU, in patients with, low and intermediate probability of acute coronary syndrome, in Medellín, Colombia. Methods: A descriptive study comprising 277 subjects who were consecutively admitted to the CPU. Variables included demographics, and performance measures to assess the process of care (timely action and process completion). A 30 days follow-up included survival and new admissions compatible with coronary syndromes. Results: From the whole sample, 13.0% of patients were referred for hospitalization. However, only 2.5% had a final diagnosis of an acute coronary syndrome. Median time between reception and an electrocardiogram acquisition was 10 minutes TIMI score and acute coronary syndrome probability were reported in 85.5 and 73.9% of subjects respectively. Comparison between early implementation and consolidation phases showed a sensible improvement of performance measure indicators (p < 0.05). In addition, 30-day follow-up showed neither fatalities nor new coronary events. Conclusion: Chest pain observation unit based on clinical assessment of thoracic pain, TIMI risk score and ST segment changes interpretation in the ECG is a safe and efficacious way to stratify low and intermediate chest pain leading to a safe patient discharge with very low risk of cardiovascular complications.

Keywords : Chest pain; Acute coronary syndrome; Risk factors; Electrocardiogram; Health management.

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