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Rio P, Ramos R, Pereira-da-Silva T, et al. Yield of contemporary clinical strategies to detect patients with obstructive coronary artery disease. Heart Int. 2016;10(1):e12-9doi: 10.5301/heartint.5000224.
Rio, P., Ramos, R., Pereira-da-Silva, T., Barbosa, C., Cacela, D., Fiarresga, A., de Sousa, L., Abreu, A., Patrício, L., Bernardes, L., & Ferreira, R. C. (2015). Yield of contemporary clinical strategies to detect patients with obstructive coronary artery disease. Heart international, 10(1), e12-9. https://doi.org/10.5301/heartint.5000224
Rio, Pedro, et al. "Yield of contemporary clinical strategies to detect patients with obstructive coronary artery disease." Heart international vol. 10,1 (2015): e12-9. doi: https://doi.org/10.5301/heartint.5000224
Rio P, Ramos R, Pereira-da-Silva T, Barbosa C, Cacela D, Fiarresga A, de Sousa L, Abreu A, Patrício L, Bernardes L, Ferreira RC. Yield of contemporary clinical strategies to detect patients with obstructive coronary artery disease. Heart Int. 2016 Feb 18;10(1):e12-9. doi: 10.5301/heartint.5000224. eCollection 2015. PMID: 27672432; PMCID: PMC4946384.
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Heart Int. 2016 Feb 18;10(1):e12-9. doi: 10.5301/heartint.5000224. eCollection 2015.

Yield of contemporary clinical strategies to detect patients with obstructive coronary artery disease.

Heart international

Pedro Rio, Ruben Ramos, Tiago Pereira-da-Silva, Carlos Barbosa, Duarte Cacela, António Fiarresga, Lídia de Sousa, Ana Abreu, Lino Patrício, Luís Bernardes, Rui Cruz Ferreira

Affiliations

  1. Cardiology Department, Santa Marta Hospital, Centro Hospitalar de Lisboa Central, Lisbon - Portugal.

PMID: 27672432 PMCID: PMC4946384 DOI: 10.5301/heartint.5000224

Abstract

PURPOSE: Noninvasive ischemia testing (NIST) is recommended for most patients suspected to have stable coronary artery disease (CAD) before invasive coronary angiography (ICA). We sought to assess the diagnostic predictive ability of NIST over clinical risk profiling in a contemporary sample of patients undergoing the currently recommended diagnostic triage strategy.

METHODS: From 2006 to 2011, 2,600 consecutive patients without known CAD undergoing elective ICA in a single tertiary-care center were retrospectively identified and the prevalence of obstructive CAD determined. To understand the incremental value of frequently used clinical parameters in predicting obstructive CAD, receiver operating characteristic curves were plotted for six sequential models starting with Framingham risk score and then progressively adding multiple clinical factors and finally NIST results.

RESULTS: At ICA 1,268 patients (48.8%) had obstructive CAD. The vast majority (85%) were classified in an intermediate clinical pretest probability of CAD and NIST prior to ICA was used in 86% of the cohort. The most powerful correlate of obstructive CAD was the presence of severe angina (odds ratio (OR) = 9.1; 95% confidence interval (CI) 4.3-19.1). Accordingly, the incorporation of NIST in a sequential model had no significant effect on the predictive ability over that achieved by clinical and symptomatic status model (C-statistic 0.754; 95% CI 0.732-0.776, p = 0.28).

CONCLUSIONS: Less than half the patients with suspect stable obstructive CAD referred to a tertiary-level center for elective ICA had the diagnosis confirmed. In this clinical setting, the results of NIST may not have the power to change the discriminative ability over clinical judgment alone.

Keywords: Angiography; Coronary disease; Diagnosis

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