Cited by 1,311Fatty Acid Research and HealthAcute Myocardial Infarction ResearchCardiac Health and Mental Health

Early Protection Against Sudden Death by n-3 Polyunsaturated Fatty Acids After Myocardial Infarction: Time-Course Analysis of the Results of the Gruppo Italiano per lo Studio della Sopravvivenza nell’Infarto Miocardico (GISSI)-Prevenzione

Marchioli, Roberto, Barzi, Federica, Bomba, Elena, Chieffo, Carmine, Di Gregorio, Domenico, Di Mascio, Rocco, Franzosi, Maria Grazia, Geraci, Enrico +13 more·2002·Circulation

Abstract

Background — Our purpose was to assess the time course of the benefit of n-3 polyunsaturated fatty acids (PUFAs) on mortality documented by the GISSI-Prevenzione trial in patients surviving a recent (<3 months) myocardial infarction. Methods and Results — In this study, 11 323 patients were randomly assigned to supplements of n-3 PUFAs, vitamin E (300 mg/d), both, or no treatment (control) on top of optimal pharmacological treatment and lifestyle advice. Intention-to-treat analysis adjusted for interaction between treatments was carried out. Early efficacy of n-3 PUFA treatment for total, cardiovascular, cardiac, coronary, and sudden death; nonfatal myocardial infarction; total coronary heart disease; and cerebrovascular events was assessed by right-censoring follow-up data 12 times from the first month after randomization up to 12 months. Survival curves for n-3 PUFA treatment diverged early after randomization, and total mortality was significantly lowered after 3 months of treatment (relative risk [RR] 0.59; 95% CI 0.36 to 0.97; P =0.037). The reduction in risk of sudden death was specifically relevant and statistically significant already at 4 months (RR 0.47; 95% CI 0.219 to 0.995; P =0.048). A similarly significant, although delayed, pattern after 6 to 8 months of treatment was observed for cardiovascular, cardiac, and coronary deaths. Conclusions — The early effect of low-dose (1 g/d) n-3 PUFAs on total mortality and sudden death supports the hypothesis of an antiarrhythmic effect of this drug. Such a result is consistent with the wealth of evidence coming from laboratory experiments on isolated myocytes, animal models, and epidemiological and clinical studies.

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Crossref · 10.1161/01.cir.0000014682.14181.f2

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  • Contemporary high-intensity statin formulations achieve greater low-density lipoprotein-lowering effects and cardiovascular endpoint reduction than were used during the first mixed EPA/DHA trials, such as GISSI-P.

    “contemporary high-intensity statin formulations achieve greater low-density lipoprotein–lowering effects and cardiovascular endpoint reduction than were used during the first mixed EPA/DHA trials, such as GISSI-P.17,27,44”

    From Effects of Eicosapentaenoic Acid vs Eicosapentaenoic/Docosahexaenoic Acids on Cardiovascular Mortality (2025) · cites this paper as [44]

    The Acknowledgements (page not available) identify GISSI-Prevenzione as a trial using mixed EPA/DHA capsules, and Table 1 (Statistical Methods; page not available) reports cholesterol-lowering drug use of 4.7% at baseline and 45.5% at 42 months. The paper does not compare those drugs with contemporary high-intensity statins or establish greater LDL lowering or cardiovascular endpoint reduction from such statins. (LLM, conf=0.85)

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  • Meta-analyses suggest that a reduction in calculated glomerular filtration rate with fibrates does not reflect adverse effects on kidney function.

    “Data from meta-analyses suggest that a reduction of calculated glomerular filtration rate (GFR) does not reflect any adverse effects on kidney function [315].”
  • Other meta-analyses suggest reduced major cardiovascular events in patients with high triglycerides and low HDL cholesterol treated with fibrates, but no decrease in cardiovascular or total mortality.

    “Results from other meta-analyses suggest reduced major CVD events in patients with high TGs and low HDL-C in fibrate-treated patients, but no decrease in CVD or total mortality [314-316].”
  • In a post hoc subgroup analysis, the reduction in mortality and sudden cardiac death with n-3 PUFA was concentrated in patients with reduced left ventricular ejection fraction.

    “A post hoc subgroup analysis revealed that this reduction in mortality and SCD was concentrated in the approximately 2000 patients with reduced left ventricular ejection fraction [67].”

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Research works printed but not linked: 4

  1. Leaf A. The electrophysiologic basis for the antiarrhythmic actions of polyunsaturated fatty acids. Eur Heart J. 2001;22:D98 -D105.
  2. Billman GE, Kang JX, Leaf A. Prevention of ischemia-induced ventric- ular arrhythmias by dietary pure n-3 polyunsaturated fatty acids in dogs. Circulation. 1999;99:2452-2457.
  3. De Caterina R, Basta G. Biochemistry and physiology of eicosanoid precursors in cell membranes. Eur Heart J. 2001;22:D42-D49.
  4. Maggioni AP, Tavazzi L, Marchioli R, et al, on the behalf of the GISSI- group. Perspectives on n-3 PUFA: primary prevention, antiarrhythmic effects, congestive heart failure. Eur Heart J. 2001;22:D106 -D109.

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Authors
Marchioli, R., Barzi, F., Bomba, E., Chieffo, C., Di Gregorio, D., Di Mascio, R., Franzosi, M. G., Geraci, E., Levantesi, G., Maggioni, A. P., Mantini, L., Marfisi, R. M., Mastrogiuseppe, G., Mininni, N., Nicolosi, G. L., Santini, M., Schweiger, C., Tavazzi, L., Tognoni, G., Tucci, C., & Valagussa, F.
Affiliations
  • Mario Negri Institute for Pharmacological Research (IT)
  • From the Department of Clinical Pharmacology and Epidemiology, Consorzio Mario Negri Sud, Santa Maria Imbaro, Chieti (R.M., F.B., E.B., R.D.M., R.M.M., G.T.); Ospedale Civile, Caserta (C.C.); Ospedale Civile, Lanciano (D.D.G., L.M., G.M., C.T.); Department of Cardiovascular Research, Istituto Mario Negri, Milano (M.G.F.); Ospedale Cervello, Palermo (E.G.); Ospedale Civile, Vasto (G.L.); Centro Studi ANMCO, Firenze (A.P.M.); Ospedale Civile, Napoli (N.M.); Ospedale S. Maria degli Angeli, Pordenone (G...
Corresponding author
Marchioli, Roberto
Venue
Circulation
Published
2002-04-23
Volume
105
Issue
16
Pages
1897-1903
ISSN
  • 0009-7322 (ISSN-L)
  • 1524-4539
OpenAlex
W2128788220
Cited by
1,311
References
36
Citations by year
2026: 6 · 2025: 14 · 2024: 27 · 2023: 18 · 2022: 21 · 2021: 17 · 2020: 30 · 2019: 20 · 2018: 33 · 2017: 42 · 2016: 42 · 2015: 49 · 2014: 64 · 2013: 87 · 2012: 84
FWCI
60.57
Type
journal article
Language
en
Open access
closed
Locations
  • Circulation (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Bristol-Myers Squibb
  • Istituto di Ricerche Farmacologiche Mario Negri - IRCCS
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Acute Myocardial Infarction Research
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Health and Mental Health
Keywords
omega-3 fatty acids, myocardial infarction, sudden death, mortality, vitamin E, antiarrhythmic effect, time course of treatment effects, cardiovascular mortality, coronary artery disease, cerebrovascular events
MeSH terms
Anti-Arrhythmia Agents, Female, Follow-Up Studies, Humans, Italy, Kinetics, Lipids, Male, Middle Aged, Myocardial Infarction, Fatty Acids, Omega-3, Death, Sudden, Cardiac, Dietary Supplements

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