Original communicationThe increased frequency of acute myocardial infarction during summer months in a warm climate: A study of 1,386 cases from Dallas, Texas
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Cluster of climatic and pollutant characteristics increases admissions for acute myocardial infarction: Analysis of 30,423 patients in the metropolitan area of Sao Paulo
2021, Heart and LungCitation Excerpt :Moreover, exposure to air pollution has been linked to increased heart rate, alterations in heart rate variability and exacerbated cardiovascular thrombosis and coagulation.26 Previous studies have shown temperature oscillation as trigger for MI.5–10 Possible pathophysiology mechanisms may be explained by the stimulation of cold receptors in the skin leading to an increase in catecholamines levels, increase in C-reactive protein, vasoconstriction, rise in arterial pressure and heart rate, consequently exacerbating ischemia and possible contributing to plaque instability.27
Taking Hockey to Heart: Potential Coronary Risks of Watching Exciting Games
2017, Canadian Journal of CardiologySeasonal Periodicity of Ischemic Heart Disease and Heart Failure
2017, Heart Failure ClinicsCitation Excerpt :Previous studies have reported seasonal fluctuations in the onset of IHD and heart failure with a disproportionate number of admissions in the winter months compared with summer.2–13 Far fewer studies have reported a higher incidence of AMI in the summer or no season variation.14–20 Furthermore, subsequent studies not only found an increase in mortality from AMI during the winter months but also from all forms of ischemic coronary disease during the winter.21
Seasonal and circadian variations of acute myocardial infarction: Findings from the Get With The Guidelines–Coronary Artery Disease (GWTG-CAD) program
2017, American Heart JournalCitation Excerpt :Since then, multiple studies have demonstrated the chronobiology of myocardial infarction in different contexts,3-6 but only a few small studies have classified myocardial infarction based on ST segment elevation.7-9 Some studies report higher incidence of myocardial infarction during summer in warm climate.10 It is known that the incidence of myocardial infarction peaks in early to late morning hours.11-14
Seasonal variation of acute myocardial infarction related hospitalizations in the United States: Perspective over the last decade
2014, International Journal of CardiologyDepression, stress, and heart disease in earthquakes and Takotsubo cardiomyopathy
2011, American Journal of MedicineCitation Excerpt :When advanced CAD is present, various forms of stress, including depression followed by distress usually well tolerated, may provoke adverse cardiac outcomes. Such stresses may include early morning activity,53 winter weather including heavy snowfall,54-56 summer in a very warm climate,57 holiday events such as Christmas and New Year's Day,56,58 Mondays for working men and Saturdays for women in a traditional Japanese culture,59 and levels of air pollution.60 Assessment of depression or depressive symptoms in patients with comorbid CHD should take these stressors into account when attempting to link depression with this cardiac disease.