Abstract
Purpose of Review
To identify key strengths and weaknesses of the International Study of Comparative Health Effectiveness with Medical and Invasive Approaches (ISCHEMIA) trial and explore its clinical implications in patients with stable ischemic heart disease.
Recent Findings
Previous studies have shown inconsistent benefit of early angiography and revascularization in patients with stable ischemic heart disease. The ISCHEMIA trial showed no significant reduction in mortality or cardiovascular outcomes in patients undergoing early angiography and revascularization with guideline-directed medical therapy compared to patients on medical therapy alone in specific patient population with stable coronary artery disease.
Summary
The ISCHEMIA trial provides insights into invasive versus pharmacological treatment for patients with stable ischemic heart disease. Though it may have reduced applicability given its broad exclusion criteria, it offers useful information about the utility of non-invasive imaging modalities for selecting optimal revascularization candidates.
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References
Papers of particular interest, published recently, have been highlighted as: •• Of major importance
World Health Organization. The top 10 causes of death. https://www.who.int/news-room/fact-sheets/detail/the-top-10-causes-of-death. 24 May 2018.
Hachamovitch R, Hayes SW, Friedman JD, Cohen I, Berman DS. Comparison of the short-term survival benefit associated with revascularization compared with medical therapy in patients with no prior coronary artery disease undergoing stress myocardial perfusion single photon emission computed tomography. Circulation. 2003;107(23):2900–7.
Stergiopoulos K, Boden WE, Hartigan P, Möbius-Winkler S, Hambrecht R, Hueb W, et al. Percutaneous coronary intervention outcomes in patients with stable obstructive coronary artery disease and myocardial ischemia: a collaborative meta-analysis of contemporary randomized clinical trials. JAMA Intern Med. 2014;174(2):232–40.
Maron DJ, Hochman JS, Reynolds HR, Bangalore S, O’Brien SM, Boden WE, et al. Initial invasive or conservative strategy for stable coronary disease. N Engl J Med. 2020;382(15):1395–407.
Maron DJ, Hochman JS, O’Brien SM, Reynolds HR, Boden WE, Stone GW, et al. International Study of Comparative Health Effectiveness with Medical and Invasive Approaches (ISCHEMIA) trial: Rationale and design. Am Heart J. 2018;201:124–35.
Spertus JA, Jones PG, Maron DJ, O’Brien SM, Reynolds HR, Rosenberg Y, et al. Health-status outcomes with invasive or conservative care in coronary disease. N Engl J Med. 2020;382(15):1408–19.
Maron DJ, Harrington RA, Hochman JS. Planning and conducting the ISCHEMIA trial. Circulation. 2018;138(14):1384–6.
•• Spilias N, Zorach B, Denby K, Ellis S. The role of ISCHEMIA in stable ischemic heart disease. Cleve Clin J Med. 2020;87(7):401 This article provided an in-depth analysis and critique of the ISCHEMIA trial as well as providing several important clinical implications.
Boden WE, O’Rourke RA, Teo KK, Hartigan PM, Maron DJ, Kostuk WJ, et al. Optimal medical therapy with or without PCI for stable coronary disease. N Engl J Med. 2007;356(15):1503–16.
Wood S. ISCHEMIA: Invasive strategy no better than mds for CV events. https://www.tctmd.com/news/ischemia-invasive-strategy-no-better-meds-cv-events. 16 Nov 2019.
Al-Lamee R, Thompson D, Dehbi HM, Sen S, Tang K, Davies J, et al. Percutaneous coronary intervention in stable angina (ORBITA): a double-blind, randomised controlled trial. The Lancet. 2018;391(10115):31–40.
Smolka S, Desai MY, Achenbach S. After ISCHEMIA: is coronary CTA the new gatekeeper? Herz. 2020;45:441–5.
Hochman JS. International Study of Comparative Health Effectiveness With Medical And Invasive Approaches (ISCHEMIA): primary report of clinical outcomes. 2019. https://www.ischemiatrial.org/system/files/attachments/ISCHEMIA%20MAIN%2012.03.19%20MASTER.pdf
Mukherjee D. Coronary revascularization in the United States-patient characteristics and outcomes in 2020. JAMA Netw Open. 2020;3(2):e1921322. https://doi.org/10.1001/jamanetworkopen.2019.21322 PMID: 32058547.
Gregson J, Stone GW, Ben-Yahuda O, Redfors B, Kandzari DE, Morice MC, et al. Implications of alternative definitions of peri-procedural myocardial infarction after coronary revascularization. JACC. 2020;76(14):1609–21.
Hara H, Serruys PW, Takahashi K, Kawashima H, Ono M, Gao C, et al. Impact of peri-procedural myocardial infarction on outcomes after revascularization. JACC. 2020;76(14):1622–39.
Lopes RD, Alexander KP, Stevens SR, Reynolds HR, Stone GW, Pina IL, et al. Initial invasive versus conservative management of stable ischemic heart disease patients with a history of heart failure or left ventricular dysfunction: insights from the ISCHEMIA Trial. Circulation. 2020;142:1725–35. https://doi.org/10.1161/CIRCULATIONAHA.120.050304. Epub ahead of print.
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Choudhary, J., Chiu, S., Bhugra, P. et al. Clinical Implications of the ISCHEMIA Trial: Invasive vs Conservative Approach in Stable Coronary Disease. Curr Cardiol Rep 23, 43 (2021). https://doi.org/10.1007/s11886-021-01470-x
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DOI: https://doi.org/10.1007/s11886-021-01470-x