Variação sazonal de episódios de taquicardia ventricular avaliados por Holter

Pimentel, Maurício; Grüdtner, Letícia; Zimerman, Leandro Ioschpe

doi:10.1590/s0066-782x2006001700002

Cited by 8 publications

(5 citation statements)

References 11 publications

(12 reference statements)

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“…Few studies report on arrhythmia mortality and extreme temperatures, and findings have been inconsistent for occurrence of arrhythmia. [34][35][36][37] This inconsistency may result from different arrhythmia end points and definitions across different studies. We did not find a significant association between extreme heat and death from arrhythmia, which may have resulted from misclassified recording of arrhythmia as a cause of death.…”

Section: Discussionmentioning

confidence: 99%

Associations Between Extreme Temperatures and Cardiovascular Cause-Specific Mortality: Results From 27 Countries

et al. 2023

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Background: Cardiovascular disease is the leading cause of death worldwide. Existing studies on the association between temperatures and cardiovascular deaths have been limited in geographic zones and have generally considered associations with total cardiovascular deaths rather than cause-speciﬁc cardiovascular deaths. Methods: We used uniﬁed data collection protocols within the Multi-Country Multi-City Collaborative Network to assemble a database of daily counts of speciﬁc cardiovascular causes of death from 567 cities in 27 countries across 5 continents in overlapping periods ranging from 1979 to 2019. City-speciﬁc daily ambient temperatures were obtained from weather stations and climate reanalysis models. To investigate cardiovascular mortality associations with extreme hot and cold temperatures, we ﬁt case-crossover models in each city and then used a mixed-effects meta-analytic framework to pool individual city estimates. Extreme temperature percentiles were compared with the minimum mortality temperature in each location. Excess deaths were calculated for a range of extreme temperature days. Results: The analyses included deaths from any cardiovascular cause (32 154 935), ischemic heart disease (11 745 880), stroke (9 351 312), heart failure (3 673 723), and arrhythmia (670 859). At extreme temperature percentiles, heat (99th percentile) and cold (1st percentile) were associated with higher risk of dying from any cardiovascular cause, ischemic heart disease, stroke, and heart failure as compared to the minimum mortality temperature, which is the temperature associated with least mortality. Across a range of extreme temperatures, hot days (above 97.5th percentile) and cold days (below 2.5th percentile) accounted for 2.2 (95% empirical CI [eCI], 2.1–2.3) and 9.1 (95% eCI, 8.9–9.2) excess deaths for every 1000 cardiovascular deaths, respectively. Heart failure was associated with the highest excess deaths proportion from extreme hot and cold days with 2.6 (95% eCI, 2.4–2.8) and 12.8 (95% eCI, 12.2–13.1) for every 1000 heart failure deaths, respectively. Conclusions: Across a large, multinational sample, exposure to extreme hot and cold temperatures was associated with a greater risk of mortality from multiple common cardiovascular conditions. The intersections between extreme temperatures and cardiovascular health need to be thoroughly characterized in the present day—and especially under a changing climate.

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Section: Discussionmentioning

confidence: 99%

Associations Between Extreme Temperatures and Cardiovascular Cause-Specific Mortality: Results From 27 Countries

et al. 2023

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“…Thermal stress, due to very low as well as very high temperatures, can trigger alterations in physiological processes and may be physiopathological ones, determining a seasonal variation in cardiovascular events. [159] In contrast, the incidence of VA in southern Brazil and Japan was found more frequent during summer than in winter months. [159160] The increase in the incidence of VA in summer can be related not only to alterations in the absolute temperature degree, but also to behavior alterations, which are characteristic of this season.…”

Section: Introductionmentioning

confidence: 99%

“…[159] In contrast, the incidence of VA in southern Brazil and Japan was found more frequent during summer than in winter months. [159160] The increase in the incidence of VA in summer can be related not only to alterations in the absolute temperature degree, but also to behavior alterations, which are characteristic of this season. During summer, longer exposure to sunlight, increase of physical activities and uncontrolled weight-loss diets can lead to fluid and electrolyte loss through the skin, which can determine electrolyte imbalance, favoring the occurrence of VA.…”

Section: Introductionmentioning

confidence: 99%

“…During summer, longer exposure to sunlight, increase of physical activities and uncontrolled weight-loss diets can lead to fluid and electrolyte loss through the skin, which can determine electrolyte imbalance, favoring the occurrence of VA. Similarly, the increased food and alcoholic beverage intake, which is characteristic of the vacation periods, can also contribute to an increase in the occurrence of VA.[159]…”

Section: Introductionmentioning

confidence: 99%

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Winter cardiovascular diseases phenomenon

Fares¹

2013

North Am J Med Sci

162

161

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This paper review seasonal patterns across twelve cardiovascular diseases: Deep venous thrombosis, pulmonary embolism, aortic dissection and rupture, stroke, intracerebral hemorrhage, hypertension, heart failure, angina pectoris, myocardial infarction, sudden cardiac death, venricular arrythmia and atrial fibrillation, and discuss a possible cause of the occurrence of these diseases. There is a clear seasonal trend of cardiovascular diseases, with the highest incidence occurring during the colder winter months, which have been described in many countries. This phenomenon likely contributes to the numbers of deaths occurring in winter. The implications of this finding are important for testing the relative importance of the proposed mechanisms. Understanding the influence of season and other factors is essential when seeking to implement effective public health measures.

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“…Other studies from the United States, Germany, and Brazil also revealed an increased risk of ventricular arrhythmias with both extremes of temperature [86][87][88]. Surprisingly, although atrial fibrillation is one of the most prevalent arrhythmias, no study has been planned to evaluate its relationship with ambient temperature.…”

Section: Arrhythmiasmentioning

confidence: 99%

The Impact of Climate Change and Extreme Weather Conditions on Cardiovascular Health and Acute Cardiovascular Diseases

De Vita,

Belmusto,

Di Perna

et al. 2024

JCM

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Climate change is widely recognized as one of the most significant challenges facing our planet and human civilization. Human activities such as the burning of fossil fuels, deforestation, and industrial processes release greenhouse gases into the atmosphere, leading to a warming of the Earth’s climate. The relationship between climate change and cardiovascular (CV) health, mediated by air pollution and increased ambient temperatures, is complex and very heterogeneous. The main mechanisms underlying the pathogenesis of CV disease at extreme temperatures involve several regulatory pathways, including temperature-sympathetic reactivity, the cold-activated renin-angiotensin system, dehydration, extreme temperature-induced electrolyte imbalances, and heat stroke-induced systemic inflammatory responses. The interplay of these mechanisms may vary based on individual factors, environmental conditions, and an overall health background. The net outcome is a significant increase in CV mortality and a higher incidence of hypertension, type II diabetes mellitus, acute myocardial infarction (AMI), heart failure, and cardiac arrhythmias. Patients with pre-existing CV disorders may be more vulnerable to the effects of global warming and extreme temperatures. There is an urgent need for a comprehensive intervention that spans from the individual level to a systemic or global approach to effectively address this existential problem. Future programs aimed at reducing CV and environmental burdens should require cross-disciplinary collaboration involving physicians, researchers, public health workers, political scientists, legislators, and national leaders to mitigate the effects of climate change.

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Variação sazonal de episódios de taquicardia ventricular avaliados por Holter

Cited by 8 publications

References 11 publications

Associations Between Extreme Temperatures and Cardiovascular Cause-Specific Mortality: Results From 27 Countries

Associations Between Extreme Temperatures and Cardiovascular Cause-Specific Mortality: Results From 27 Countries

Winter cardiovascular diseases phenomenon

The Impact of Climate Change and Extreme Weather Conditions on Cardiovascular Health and Acute Cardiovascular Diseases

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