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Aleem MA, Chughtai AA, Rahman B, Akhtar Z, Chowdhury F, Qadri F, Macintyre CR. Prevalence of influenza and other acute respiratory illnesses in patients with acute myocardial infarction in Bangladesh: A cross-sectional study. Health Sci Rep 2024; 7:e2234. [PMID: 38983680 PMCID: PMC11230924 DOI: 10.1002/hsr2.2234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 05/29/2024] [Accepted: 06/11/2024] [Indexed: 07/11/2024] Open
Abstract
Background and Aims Several studies imply that influenza and other respiratory illnesses could lead to acute myocardial infarction (AMI), but data from low-income countries are scarce. We investigated the prevalence of recent respiratory illnesses and confirmed influenza in AMI patients, while also exploring their relationship with infarction severity as defined by ST-elevation MI (STEMI) or high troponin levels. Methods This cross-sectional study, held at a Dhaka tertiary hospital from May 2017 to October 2018, involved AMI inpatients. The study examined self-reported clinical respiratory illnesses (CRI) in the week before AMI onset and confirmed influenza using baseline real-time reverse transcription polymerase chain reaction (qRT-PCR). Results Of 744 patients, 11.3% reported a recent CRI, most prominently during the 2017 influenza season (35.7%). qRT-PCR testing found evidence of influenza in 1.5% of 546 patients, with all positives among STEMI cases. Frequencies of CRI were higher in patients with STEMI and in those with high troponin levels, although these relationships were not statistically significant after adjusting for other variables. The risk of STEMI was significantly greater during influenza seasons in the unadjusted analysis (relative risk: 1.09, 95% confidence interval [CI]: 1.02-1.18), however, this relationship was not significant in the adjusted analysis (adjusted relative risk: 1.03, 95% CI: 0.91-1.16). Conclusion In Bangladesh, many AMI patients had a recent respiratory illness history, with some showing evidence of influenza. However, these illnesses showed no significant relationship to AMI severity. Further research is needed to understand these relationships better and to investigate the potential benefits of infection control measures and influenza vaccinations in reducing AMI incidence.
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Affiliation(s)
- Mohammad Abdul Aleem
- School of Population Health, Faculty of Medicine & Health, The University of New South Wales Sydney New South Wales Australia
- Infectious Diseases Division Program for Emerging Infections, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b) Dhaka Bangladesh
| | - Abrar Ahmad Chughtai
- School of Population Health, Faculty of Medicine & Health, The University of New South Wales Sydney New South Wales Australia
| | - Bayzid Rahman
- Biosecurity Program, Faculty of Medicine & Health, The Kirby Institute, The University of New South Wales Sydney New South Wales Australia
| | - Zubair Akhtar
- Infectious Diseases Division Program for Emerging Infections, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b) Dhaka Bangladesh
- Biosecurity Program, Faculty of Medicine & Health, The Kirby Institute, The University of New South Wales Sydney New South Wales Australia
| | - Fahmida Chowdhury
- Infectious Diseases Division Program for Emerging Infections, International Centre for Diarrhoeal Disease Research, Bangladesh (icddr,b) Dhaka Bangladesh
| | - Firdausi Qadri
- Infectious Diseases Division Respiratory and Enteric Infections, International Centre for Diarrhoeal Disease and Research, Bangladesh (icddr,b) Dhaka Bangladesh
| | - C Raina Macintyre
- Biosecurity Program, Faculty of Medicine & Health, The Kirby Institute, The University of New South Wales Sydney New South Wales Australia
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Díaz-Polanco JC, Tejada-González C, Leandro-Barros A, Ruiz-Saavedra A, García-de-Santiago E, Alonso-Martín J, García-Lledó A, Martínez-Sellés M. Seasonal Stability of the Circadian Rhythm in Patients with Type I Myocardial Infarction. Rev Cardiovasc Med 2024; 25:259. [PMID: 39139425 PMCID: PMC11317328 DOI: 10.31083/j.rcm2507259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 08/15/2024] Open
Abstract
Background A circadian rhythm of myocardial infarction has been described but there is little data on its relation with seasons and months. Methods From June 2013 to June 2018, we analyzed the alerts for acute ST-segment elevation myocardial infarction (STEMI) in a Spanish region with 6.64 million inhabitants, universal health coverage, and an organized STEMI reperfusion network. We selected those patients which an identifiable culprit plaque. Results We recruited 6765 cases of STEMI due to type I acute myocardial infarction (type-I AMI), with mean age of 63.2 years (range 17-101, standard deviation [SD] 13.7), 5238 were males (77.4%) and 2801 (41.9%) were 65 years or older. The hourly distribution followed a fixed pattern in all months, with most of the events occurring between 6:00 AM and 4:00 PM, a peak at approximately 01:00 PM and a valley between 10:00 PM and 06:00 AM. No significant difference was found when comparing the mean time to first medical contact between July (the month with more daylight hours) and December (the month with shortest days). No significant differences were found between male and female patients, or between patients aged 65 years or older and younger patients. There was a close correlation between the number of events per month and the number of events occurring during the day (6 AM to 6 PM, r = 0.988, p = 0.001) and during the night (6 PM to 6 AM, r = 0.944, p < 0.001), with different slopes of the regression lines (t-test, p < 0.001), so that the difference between day-night occurrences increased with the total incidence. Conclusions There is a circadian pattern in the presentation of STEMI that is not influenced by sex and age. The different incidence of STEMI at different times of the year does not affect the circadian pattern in terms of the shape of the curve or the mean time of presentation, although diurnal events increase more than nocturnal events, suggesting that triggers are most likely to act during vulnerable periods as determined by a circadian-based rhythm.
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Affiliation(s)
| | - Carlos Tejada-González
- Department of Cardiology, Hospital Universitario Príncipe de
Asturias, 28805 Madrid, Spain
| | - Amanda Leandro-Barros
- Department of Cardiology, Hospital Universitario Príncipe de
Asturias, 28805 Madrid, Spain
| | - Antonio Ruiz-Saavedra
- Department of Cardiology, Hospital Universitario Príncipe de
Asturias, 28805 Madrid, Spain
| | | | - Joaquín Alonso-Martín
- Código Infarto Madrid, Health Department of the Government of the
Autonomous Community of Madrid, 28013 Madrid, Spain
| | - Alberto García-Lledó
- Department of Cardiology, Hospital Universitario Príncipe de
Asturias, 28805 Madrid, Spain
- Department of Medicine and Medical Specialties, University of Alcalá,
28805 Madrid, Spain
- Código Infarto Madrid, Health Department of the Government of the
Autonomous Community of Madrid, 28013 Madrid, Spain
| | - Manuel Martínez-Sellés
- Department of Cardiology, Hospital Universitario Gregorio Marañón,
CIBERCV, Universidad Europea, Universidad Complutense, 28040 Madrid, Spain
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3
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Ouranos K, Vassilopoulos S, Vassilopoulos A, Shehadeh F, Mylonakis E. Cumulative incidence and mortality rate of cardiovascular complications due to laboratory-confirmed influenza virus infection: A systematic review and meta-analysis. Rev Med Virol 2024; 34:e2497. [PMID: 38126946 DOI: 10.1002/rmv.2497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/17/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
Influenza infection is associated with cardiovascular complications that range significantly in presentation and severity. The cumulative incidence of cardiovascular complications due to laboratory-confirmed influenza, however, is not reported in the literature. We conducted a systematic review and random-effects meta-analysis to evaluate the cumulative incidence and mortality rate of influenza virus-related cardiovascular complications in hospitalized patients. We searched the PubMed and EMBASE databases for studies reporting acute myocardial infarction (AMI), heart failure (HF), arrhythmia of any kind, stroke or transient ischemic attack (TIA), and myocarditis in hospitalized patients with laboratory-confirmed influenza virus infection. Prospective studies, retrospective cohort studies, and randomized controlled trials (RCTs) were included in the analysis. We followed the PRISMA checklist and used 95% confidence intervals (CIs) to report meta-analysis outcomes. This study was registered on PROSPERO (CRD42023427849). After retrieving 2803 studies, we identified 19 studies (18 observational and 1 RCT) with relevant data, and we included 6936 patients in our analysis, of whom 690 (9.9%) developed a cardiovascular outcome of interest. The cumulative incidence of HF was 17.47% (95% CI: 5.06%-34.54%), arrhythmia of any kind 6.12% (95% CI: 0.00%-21.92%), myocarditis 2.56% (95% CI: 0.66%-5.38%), AMI 2.19% (95% CI: 1.03%-3.72%), and stroke or TIA 1.14% (95% CI: 0.00%-4.05%). The in-hospital mortality rate from cardiovascular events was 1.38% (95% CI: 0.00%-4.80%). Cardiovascular complications occur in patients with influenza virus infection, with the cumulative incidence of specific cardiac manifestations varying considerably (1.51%-17.47%). Preventive strategies and close clinical monitoring after infection remain a priority.
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Affiliation(s)
- Konstantinos Ouranos
- Department of Medicine, Houston Methodist Research Institute, Houston, Texas, USA
| | - Stephanos Vassilopoulos
- Department of Medicine, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Athanasios Vassilopoulos
- Department of Medicine, Warren Alpert Medical School of Brown University, Rhode Island Hospital, Providence, Rhode Island, USA
| | - Fadi Shehadeh
- Department of Medicine, Houston Methodist Research Institute, Houston, Texas, USA
- School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece
| | - Eleftherios Mylonakis
- Department of Medicine, Houston Methodist Research Institute, Houston, Texas, USA
- Weill Cornell Medicine, New York, New York, USA
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4
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Tang S, Fu J, Liu Y, Zhao Y, Chen Y, Han Y, Zhao X, Liu Y, Jin X, Fan Z. Temperature fluctuation and acute myocardial infarction in Beijing: an extended analysis of temperature ranges and differences. Front Public Health 2023; 11:1287821. [PMID: 38146477 PMCID: PMC10749349 DOI: 10.3389/fpubh.2023.1287821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 11/17/2023] [Indexed: 12/27/2023] Open
Abstract
Purpose Few studies examined the relationship between temperature fluctuation metrics and acute myocardial infarction (AMI) hospitalizations within a single cohort. We aimed to expand knowledge on two basic measures: temperature range and difference. Methods We conducted a time-series analysis on the correlations between temperature range (TR), daily mean temperature differences (DTDmean), and daily mean-maximum/minimum temperature differences (TDmax/min) and AMI hospitalizations, using data between 2013 and 2016 in Beijing, China. The effects of TRn and DTDmeann over n-day intervals were compared, respectively. Subgroup analysis by age and sex was performed. Results A total of 81,029 AMI hospitalizations were included. TR1, TDmax, and TDmin were associated with AMI in J-shaped patterns. DTDmean1 was related to AMI in a U-shaped pattern. These correlations weakened for TR and DTDmean with longer exposure intervals. Extremely low (1st percentile) and high (5°C) DTDmean1 generated cumulative relative risk (CRR) of 2.73 (95% CI: 1.56-4.79) and 2.15 (95% CI: 1.54-3.01). Extremely high TR1, TDmax, and TDmin (99th percentile) correlated with CRR of 2.00 (95% CI: 1.73-2.85), 1.71 (95% CI: 1.40-2.09), and 2.73 (95% CI: 2.04-3.66), respectively. Those aged 20-64 had higher risks with large TR1, TDmax, and TDmin, while older individuals were more affected by negative DTDmean1. DTDmean1 was associated with a higher AMI risk in females. Conclusion Temperature fluctuations were linked to increased AMI hospitalizations, with low-temperature extremes having a more pronounced effect. Females and the older adult were more susceptible to daily mean temperature variations, while younger individuals were more affected by larger temperature ranges.
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Affiliation(s)
- Siqi Tang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Jia Fu
- Department of Cardiology, Fuwai Yunnan Cardiovascular Hospital, Kunming, Yunnan, China
| | - Yanbo Liu
- Department of International Medical Services, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yakun Zhao
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yuxiong Chen
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yitao Han
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xinlong Zhao
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yijie Liu
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaofeng Jin
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Zhongjie Fan
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
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5
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Sanz-Muñoz I, Eiros JM. Old and new aspects of influenza. Med Clin (Barc) 2023; 161:303-309. [PMID: 37517930 DOI: 10.1016/j.medcli.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/21/2023] [Accepted: 06/21/2023] [Indexed: 08/01/2023]
Abstract
Influenza is a classic infectious disease that, through the continuous variation of the viruses that produce it, imposes new challenges that we must solve as quickly as possible. The COVID-19 pandemic has substantially modified the behavior of influenza and other respiratory viruses, and in the coming years we will have to coexist with a new pathogen that will probably interact with existing pathogens in a way that we cannot yet glimpse. However, knowledge prior to the pandemic allows us to focus on the aspects that must be modified to make influenza an acceptable challenge for the future. In this review, emphasis is placed on the most relevant aspects of epidemiology, disease burden, diagnosis, and vaccine prevention, and how scientific and clinical trends in these aspects flow from the previously known to future challenges.
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Affiliation(s)
- Iván Sanz-Muñoz
- Centro Nacional de Gripe, Valladolid, España; Instituto de Estudios de Ciencias de la Salud de Castilla y León (ICSCYL), Soria, España
| | - José M Eiros
- Centro Nacional de Gripe, Valladolid, España; Servicio de Microbiología, Hospital Universitario Río Hortega, Valladolid, España.
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6
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Zhang Y, Zheng P, Shi J, Ma Y, Chen Z, Wang T, Jia G. Associations of ambient temperature with creatine kinase MB and creatine kinase: A large sample time series study of the Chinese male population. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 880:163250. [PMID: 37023827 DOI: 10.1016/j.scitotenv.2023.163250] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/16/2023] [Accepted: 03/30/2023] [Indexed: 05/27/2023]
Abstract
Previous evidence has associated non-optimal ambient temperature with an increased risk of myocardial infarction. However, no studies have shown an association between ambient temperature and biomarkers in the myocardium. This study aimed to investigate the association of ambient temperature with creatine kinase MB (CK-MB) and creatine kinase (CK). A total of 94,784 men aged 20-50 years were included in this study. We performed blood biochemical tests on the participants and used the daily average temperature to represent ambient temperature. The daily average ambient temperature was calculated by hourly observational data from meteorological indicators in Beijing. Lag effects were observed within 0-7 days. General additive models were used to observe nonlinear associations of ambient temperature with CK-MB and CK. Linear models were used to fit the associations of cold or heat with CK-MB and CK, respectively, after confirming the inflection point of ambient temperature. The OR value of abnormal CK-MB (CK) for a 1 °C increase or decrease was calculated by logistic regression. In the results, a V-shaped relationship between CK-MB and ambient temperature and a linear relationship between CK and ambient temperature were observed. Cold exposure was associated with increased CK-MB and CK levels. For a 1 °C decrease, CK-MB increased by 0.044 U/L (95 % CI: 0.017, 0.070 U/L) at lag day 0, and CK increased by 1.44 U/L (0.44, 2.44 U/L) at lag day 4 (the lag day with the strongest effect). The OR of high CK-MB was 1.047 (1.017, 1.077) at lag day 0, and the OR of high CK was 1.066 (1.038, 1.095) at lag day 4 for a 1 °C decrease. No heat-related elevation of CK-MB or CK was observed. In general, cold exposure is associated with increased levels of CK-MB and CK in humans, which may be associated with myocardial injury. Our findings illustrate the possible adverse effects of cold exposure on the myocardium from a biomarker perspective.
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Affiliation(s)
- Yi Zhang
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing 100083, China
| | - Pai Zheng
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing 100083, China
| | - Jiaqi Shi
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing 100083, China
| | - Ying Ma
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing 100083, China
| | - Zhangjian Chen
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing 100083, China.
| | - Tiancheng Wang
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing 100191, China.
| | - Guang Jia
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, China; Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, School of Public Health, Peking University, Beijing 100083, China
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7
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Behrouzi B, Udell JA. Moving the Needle on Atherosclerotic Cardiovascular Disease and Heart Failure with Influenza Vaccination. Curr Atheroscler Rep 2021; 23:78. [PMID: 34671861 PMCID: PMC8528654 DOI: 10.1007/s11883-021-00973-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2021] [Indexed: 11/12/2022]
Abstract
PURPOSE OF REVIEW The interplay between viral respiratory infections and cardiovascular disease has been most comprehensively researched using seasonal and pandemic influenza viruses as case studies. Here, we summarize the latest international observational research and clinical trials that examined the association between influenza, influenza vaccines, and cardiovascular disease, while contextualizing their findings within those of landmark studies. RECENT FINDINGS Most recent observational literature found that one in eight adults hospitalized with laboratory-confirmed influenza infection experienced an acute cardiovascular event. The latest meta-analysis of the cardioprotective effects of influenza vaccine found a 25% reduced risk of all-cause death. There are four large cardiovascular outcome trials assessing the cardioprotective effects of different influenza vaccine strategies. Among these, the INVESTED study showed there is no significant difference between the high-dose trivalent and standard-dose quadrivalent influenza vaccines in reducing all-cause mortality or cardiopulmonary hospitalizations in a high-risk patient group with pre-existing cardiovascular disease. Persons with cardiovascular disease represent a high priority group for viral vaccines; hence, using robust evidence to increase vaccine confidence among patients and practitioners is integral as we prepare for a possible influenza resurgence in the coming years.
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Affiliation(s)
- Bahar Behrouzi
- ICES, Toronto, ON Canada
- Cardiovascular Division, Department of Medicine, Women’s College Hospital, 76 Grenville Street, Toronto, ON M5S 1B2 Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON Canada
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON Canada
| | - Jacob A. Udell
- ICES, Toronto, ON Canada
- Cardiovascular Division, Department of Medicine, Women’s College Hospital, 76 Grenville Street, Toronto, ON M5S 1B2 Canada
- Institute of Health Policy, Management, and Evaluation, University of Toronto, Toronto, ON Canada
- Temerty Faculty of Medicine, University of Toronto, Toronto, ON Canada
- Peter Munk Cardiac Centre, University Health Network, Toronto, ON Canada
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8
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de Abajo FJ, Rodríguez-Martín S, Barreira D, Rodríguez-Miguel A, Fernández-Antón E, Gil M, García-Lledó A. Influenza vaccine and risk of acute myocardial infarction in a population-based case-control study. Heart 2021; 108:1039-1045. [PMID: 34645644 DOI: 10.1136/heartjnl-2021-319754] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 09/17/2021] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To assess the relationship between influenza vaccination and risk of a first acute myocardial infarction (AMI) in the general population by different epidemic periods. METHODS This is a population-based case-control study carried out in BIFAP (Base de datos para la investigación farmacoepidemiológica en atención primaria), over 2001-2015, in patients aged 40-99 years. Per each incident AMI case, five controls were randomly selected, individually matched for exact age, sex and index date (AMI diagnosis). A patient was considered vaccinated when he/she had a recorded influenza vaccination at least 14 days before the index date within the same season. The association between influenza vaccination and AMI risk was assessed through a conditional logistic regression, computing adjusted ORs (AOR) and their respective 95% CIs. The analysis was performed overall and by each of the three time epidemic periods per study year (pre-epidemic, epidemic and postepidemic). RESULTS We identified 24 155 AMI cases and 120 775 matched controls. Of them, 31.4% and 31.2%, respectively, were vaccinated, yielding an AOR of 0.85 (95% CI 0.82 to 0.88). No effect modification by sex, age and background cardiovascular risk was observed. The reduced risk of AMI was observed shortly after vaccination and persisted over time. Similar results were obtained during the pre-epidemic (AOR=0.87; 95% CI 0.79 to 0.95), epidemic (AOR=0.89; 95% CI 0.82 to 0.96) and postepidemic (AOR=0.83; 95% CI 0.79 to 0.87) periods. No association was found with pneumococcal vaccine (AOR=1.10; 95% CI 1.06 to 1.15). CONCLUSIONS Results are compatible with a moderate protective effect of influenza vaccine on AMI in the general population, mostly in primary prevention, although bias due to unmeasured confounders may partly account for the results.
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Affiliation(s)
- Francisco José de Abajo
- Biomedical Sciences, Universidad de Alcalá de Henares Facultad de Medicina y Ciencias de la Salud, Alcalá de Henares, Spain .,Clinical Pharmacology Unit, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
| | - Sara Rodríguez-Martín
- Biomedical Sciences, Universidad de Alcalá de Henares Facultad de Medicina y Ciencias de la Salud, Alcalá de Henares, Spain.,Clinical Pharmacology Unit, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
| | - Diana Barreira
- Clinical Pharmacology Unit, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
| | - Antonio Rodríguez-Miguel
- Clinical Pharmacology Unit, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
| | | | - Miguel Gil
- Pharmacoepidemiology and Pharmacovigilance, Agencia Espanola de Medicamentos y Productos Sanitarios, Madrid, Spain
| | - Alberto García-Lledó
- Cardiology, Hospital Universitario Principe de Asturias, Alcalá de Henares, Spain.,Medicine, Universidad de Alcalá de Henares Facultad de Medicina y Ciencias de la Salud, Alcalá de Henares, Spain
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9
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García-Lledó A, Rodríguez-Martín S, Tobías A, García-de-Santiago E, Ordobás-Gavín M, Ansede-Cascudo JC, Alonso-Martín J, de Abajo FJ. Relationship Between Influenza, Temperature, and Type 1 Myocardial Infarction: An Ecological Time-Series Study. J Am Heart Assoc 2021; 10:e019608. [PMID: 33829851 PMCID: PMC8174174 DOI: 10.1161/jaha.120.019608] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Previous studies investigating the relationship of influenza with acute myocardial infarction (AMI) have not distinguished between AMI types 1 and 2. Influenza and cold temperature can explain the increased incidence of AMI during winter but, because they are closely related in temperate regions, their relative contribution is unknown. Methods and Results The temporal relationship between incidence rates of AMI with demonstrated culprit plaque (type 1 AMI) from the regional primary angioplasty network and influenza, adjusted for ambient temperature, was studied in Madrid region (Spain) during 5 influenza seasons (from June 2013 to June 2018). A time-series analysis with quasi-Poisson regression models and distributed lag-nonlinear models was used. The incidence rate of type 1 AMI according to influenza vaccination status was also explored. A total of 8240 cases of confirmed type 1 AMI were recorded. The overall risk ratio (RR) of type 1 AMI during epidemic periods, adjusted for year, month, and temperature, was 1.23 (95% CI, 1.03-1.47). An increase of weekly influenza rate of 50 cases per 100 000 inhabitants resulted in an RR for type 1 AMI of 1.16 (95% CI, 1.09-1.23) during the same week, disappearing 1 week after. When adjusted for influenza, a decrease of 1ºC in the minimum temperature resulted in an increase of 2.5% type 1 AMI. Influenza vaccination was associated with a decreased risk of type 1 AMI in subjects aged 60 to 64 years (RR, 0.58; 95% CI, 0.47-0.71) and ≥65 years (RR, 0.53; 95% CI, 0.49-0.57). Conclusions Influenza and cold temperature were both independently associated with an increased risk of type 1 AMI, whereas vaccination was associated with a reduced risk among older patients.
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Affiliation(s)
- Alberto García-Lledó
- Department of Cardiology Hospital Universitario Príncipe de Asturias Alcalá de Henares Madrid Spain.,Department of Medicine University of Alcalá Alcalá de Henares Madrid Spain.,Código Infarto MadridServicio Madrileño de Salud Madrid Spain
| | - Sara Rodríguez-Martín
- Clinical Pharmacology Unit Hospital Universitario Príncipe de Asturias Alcalá de Henares Madrid Spain.,Pharmacology Unit Department of Biomedical Sciences University of Alcalá Alcalá de Henares Madrid Spain
| | - Aurelio Tobías
- Institute of Environmental Assessment and Water Research Spanish Council for Scientific Research Barcelona Spain.,School of Tropical Medicine and Global Health Nagasaki University Nagasaki Japan
| | | | - María Ordobás-Gavín
- Epidemiology Department Directorate-General of Public Health Madrid Regional Health Authority Madrid Spain
| | | | - Joaquin Alonso-Martín
- Código Infarto MadridServicio Madrileño de Salud Madrid Spain.,Department of Cardiology Hospital Universitario de Getafe Madrid Spain
| | - Francisco J de Abajo
- Clinical Pharmacology Unit Hospital Universitario Príncipe de Asturias Alcalá de Henares Madrid Spain.,Pharmacology Unit Department of Biomedical Sciences University of Alcalá Alcalá de Henares Madrid Spain
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