Influenza, influenza‐like symptoms and their association with cardiovascular risks: a systematic review and meta‐analysis of observational studies
Identifieur interne : 000993 ( Main/Exploration ); précédent : 000992; suivant : 000994Influenza, influenza‐like symptoms and their association with cardiovascular risks: a systematic review and meta‐analysis of observational studies
Auteurs : C. S. Kwok [Royaume-Uni] ; S. Aslam [Royaume-Uni] ; E. Kontopantelis [Royaume-Uni] ; P. K. Myint [Royaume-Uni] ; M. J. S. Zaman [Royaume-Uni] ; I. Buchan [Royaume-Uni] ; Y. K. Loke [Royaume-Uni] ; M. A. Mamas [Royaume-Uni]Source :
- International Journal of Clinical Practice [ 1368-5031 ] ; 2015-09.
Abstract
Aims: To synthesise the evidence relating influenza and influenza‐like symptoms to the risks of myocardial infarction (MI), heart failure (HF) and stroke. Methods: We conducted a systematic review and meta‐analysis of the evidence relating influenza and influenza‐like symptoms to the risks of MI, HF and stroke. We systematically searched all MEDLINE and EMBASE entries up to August 2014 for studies of influenza vs. the cardiovascular outcomes above. We conducted random effects meta‐analysis using inverse variance method for pooled odds ratios (OR) and evaluated statistical heterogeneity using the I2 statistic. Results: We identified 12 studies with a total of 84,003 participants. The pooled OR for risk of MI vs. influenza (serologically confirmed) was 1.27 (95% CI, confidence interval 0.54–2.95), I2 = 47%, which was significant for the only study that adjusted for confounders (OR 5.50, 95% CI 1.31–23.13). The pooled OR for risk of MI vs. influenza‐like symptoms was 2.17 (95% CI 1.68–2.80), I2 = 0%, which was significant for both unadjusted (OR 2.23, 95% CI 1.65–3.01, five studies) and adjusted studies (OR 2.01, 95% CI 1.24–3.27, two studies). We found one study that evaluated stroke risk, one study in patients with HF, and one that evaluated mortality from MI – all of these studies suggested increased risks of events with influenza‐like symptoms. Conclusions: There is an association between influenza‐like illness and cardiovascular events, but the relationship is less clear with serologically diagnosed influenza. We recommend renewed efforts to apply current clinical guidelines and maximise the uptake of annual influenza immunisation among patients with cardiovascular diseases, to decrease their risks of MI and stroke.
Url:
DOI: 10.1111/ijcp.12646
Affiliations:
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Kontopantelis</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Centre for Health Informatics, Institute of Population Health, University of Manchester, Manchester</wicri:regionArea><placeName><settlement type="city">Manchester</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Manchester</region></placeName><orgName type="university">Université de Manchester</orgName></affiliation></author><author><name sortKey="Myint, P K" sort="Myint, P K" uniqKey="Myint P" first="P. K." last="Myint">P. K. Myint</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Institute of Applied Health Sciences, University of Aberdeen, Aberdeen</wicri:regionArea><wicri:noRegion>Aberdeen</wicri:noRegion></affiliation></author><author><name sortKey="Zaman, M J S" sort="Zaman, M J S" uniqKey="Zaman M" first="M. J. S." last="Zaman">M. J. S. Zaman</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Department of Cardiology, James Paget University Hospital, Gorleston‐on‐Sea</wicri:regionArea><wicri:noRegion>Gorleston‐on‐Sea</wicri:noRegion></affiliation></author><author><name sortKey="Buchan, I" sort="Buchan, I" uniqKey="Buchan I" first="I." last="Buchan">I. Buchan</name><affiliation wicri:level="4"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Centre for Health Informatics, Institute of Population Health, University of Manchester, Manchester</wicri:regionArea><placeName><settlement type="city">Manchester</settlement><region type="country">Angleterre</region><region type="région" nuts="1">Grand Manchester</region></placeName><orgName type="university">Université de Manchester</orgName></affiliation></author><author><name sortKey="Loke, Y K" sort="Loke, Y K" uniqKey="Loke Y" first="Y. K." last="Loke">Y. K. Loke</name><affiliation wicri:level="1"><country xml:lang="fr">Royaume-Uni</country><wicri:regionArea>Norwich Medical School, University of East Anglia, Norwich</wicri:regionArea><wicri:noRegion>Norwich</wicri:noRegion></affiliation></author><author><name sortKey="Mamas, M A" sort="Mamas, M A" uniqKey="Mamas M" first="M. A." last="Mamas">M. A. 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Methods: We conducted a systematic review and meta‐analysis of the evidence relating influenza and influenza‐like symptoms to the risks of MI, HF and stroke. We systematically searched all MEDLINE and EMBASE entries up to August 2014 for studies of influenza vs. the cardiovascular outcomes above. We conducted random effects meta‐analysis using inverse variance method for pooled odds ratios (OR) and evaluated statistical heterogeneity using the I2 statistic. Results: We identified 12 studies with a total of 84,003 participants. The pooled OR for risk of MI vs. influenza (serologically confirmed) was 1.27 (95% CI, confidence interval 0.54–2.95), I2 = 47%, which was significant for the only study that adjusted for confounders (OR 5.50, 95% CI 1.31–23.13). The pooled OR for risk of MI vs. influenza‐like symptoms was 2.17 (95% CI 1.68–2.80), I2 = 0%, which was significant for both unadjusted (OR 2.23, 95% CI 1.65–3.01, five studies) and adjusted studies (OR 2.01, 95% CI 1.24–3.27, two studies). We found one study that evaluated stroke risk, one study in patients with HF, and one that evaluated mortality from MI – all of these studies suggested increased risks of events with influenza‐like symptoms. Conclusions: There is an association between influenza‐like illness and cardiovascular events, but the relationship is less clear with serologically diagnosed influenza. We recommend renewed efforts to apply current clinical guidelines and maximise the uptake of annual influenza immunisation among patients with cardiovascular diseases, to decrease their risks of MI and stroke.</div></front></TEI><affiliations><list><country><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Grand Manchester</li></region><settlement><li>Manchester</li></settlement><orgName><li>Université de Manchester</li></orgName></list><tree><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Kwok, C S" sort="Kwok, C S" uniqKey="Kwok C" first="C. S." last="Kwok">C. S. Kwok</name></region><name sortKey="Aslam, S" sort="Aslam, S" uniqKey="Aslam S" first="S." last="Aslam">S. Aslam</name><name sortKey="Buchan, I" sort="Buchan, I" uniqKey="Buchan I" first="I." last="Buchan">I. Buchan</name><name sortKey="Kontopantelis, E" sort="Kontopantelis, E" uniqKey="Kontopantelis E" first="E." last="Kontopantelis">E. Kontopantelis</name><name sortKey="Kwok, C S" sort="Kwok, C S" uniqKey="Kwok C" first="C. S." last="Kwok">C. S. Kwok</name><name sortKey="Kwok, C S" sort="Kwok, C S" uniqKey="Kwok C" first="C. S." last="Kwok">C. S. Kwok</name><name sortKey="Loke, Y K" sort="Loke, Y K" uniqKey="Loke Y" first="Y. K." last="Loke">Y. K. Loke</name><name sortKey="Mamas, M A" sort="Mamas, M A" uniqKey="Mamas M" first="M. A." last="Mamas">M. A. Mamas</name><name sortKey="Mamas, M A" sort="Mamas, M A" uniqKey="Mamas M" first="M. A." last="Mamas">M. A. Mamas</name><name sortKey="Myint, P K" sort="Myint, P K" uniqKey="Myint P" first="P. K." last="Myint">P. K. Myint</name><name sortKey="Zaman, M J S" sort="Zaman, M J S" uniqKey="Zaman M" first="M. J. S." last="Zaman">M. J. S. Zaman</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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