The association between ambient temperature and out-of-hospital cardiac arrest in Guangzhou, China

Niu, Yue; Chen, Renjie; Liu, Cong; Ran, Pixin; Chen, Ailan; Chen, Xinyu; Kan, Haidong

doi:10.1016/j.scitotenv.2016.07.205

Cited by 36 publications

(30 citation statements)

References 32 publications

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“…Limited reports have disclosed associations between the number of ambulance calls and the ambient environment 16,17,[33][34][35] . The temperature-health risk associations may vary across locations and health outcomes 36 .…”

Section: Discussionmentioning

confidence: 99%

“…This study showed that among the 6 categories of ambulance services, OHCA had the strongest RR in association with extreme temperatures and higher ambient levels of PM 2.5 . Studies in Japan have shown that the risk of OHCA was significantly elevated at low temperatures 9,10,35 . However, a study in Guangzhou, China, suggested that the OHCA risk increased on both cold and hot days and showed a J-shaped relationship with the temperature factors 35 , similar to the pattern in Taiwan, where the risk was higher on cold days than on hot days.…”

Section: Discussionmentioning

confidence: 99%

“…Studies in Japan have shown that the risk of OHCA was significantly elevated at low temperatures 9,10,35 . However, a study in Guangzhou, China, suggested that the OHCA risk increased on both cold and hot days and showed a J-shaped relationship with the temperature factors 35 , similar to the pattern in Taiwan, where the risk was higher on cold days than on hot days. Low temperatures may increase blood viscosity, plasma viscosity, arterial pressure, and plasma cholesterol concentrations, thereby intensifying the stress on the cardiovascular system 43 .…”

Section: Discussionmentioning

confidence: 99%

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Ambulance Services Associated with Extreme Temperatures and Fine Particles in a Subtropical Island

Lin

Chen

Hung

et al. 2020

Sci Rep

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this study evaluated the association between the risk of events requiring ambulance services and the ambient temperature and particulate matter of 2.5 μm (pM 2.5 ) and 10 μm (pM 10 ) for populations living in subtropical Taiwan. We used a distributed lag nonlinear model with a quasi-Poisson function to assess the roles of ambient temperature, PM 10 and pM 2.5 in the use of ambulance services for respiratory distress, coma and unconsciousness, chest pain, lying down in public, headaches/dizziness/vertigo/ fainting/syncope and out-of-hospital cardiac arrest (OHCA). The relative risk (RR) and 95% confidence interval (CI) of each specific event were calculated in association with the ambient conditions. In general, the events that required ambulance services had a V-shaped or J-shaped association with the temperature, where the risks were higher at extreme temperatures. The RR of each event was significant when the patients were exposed to temperatures in the 5 th percentile (<15 °C); patients with OHCA had the highest adjusted RR of 1.61 (95% CI = 1.47-1.77). The risks were also significant for coma/ unconsciousness, headaches/dizziness/vertigo/fainting/syncope, and OHCA but not for respiratory distress, chest pain and lying down in public, after exposure to the 99 th percentile temperatures of >30 °C. The risks for use of ambulance services increased with PM exposure and were significant for events of respiratory distress, chest pain and OHCA after exposure to the 99 th percentile pM 2.5 after controlling for temperatures. Events requiring ambulance services were more likely to occur when the ambient temperature was low than when it was high for the population on the subtropical island of Taiwan. The association of the risk of events requiring ambulance services with PM were not as strong as the association with low temperatures.The increased frequency and intensity of extreme climate events are important public health concerns 1 . Studies have reported that ambient temperature and air pollution are important factors with significant impacts associated with various morbidities and mortalities [2][3][4] . The associations between mortality and the temperature have been characterized by U-shaped, V-shaped and J-shaped curves 5,6 , with mortality increasing at extremely cold and/or extremely hot temperatures 7,8 . Studies have also found that the risk of emergency room visits for out-of-hospital cardiac arrest (OHCA) was greater in cold seasons than in hot seasons 9-11 . In Taiwan, the cumulative 6-day relative risk of emergency room visits for OHCA reaches 1.73 when the mean temperature is 14 °C in comparison to when it is >27 °C after controlling for air pollution 12 .Climate conditions have important impacts on the transport and dispersion of air pollutants. The role of pollutants in health impacts may thus vary with climate conditions 13 . However, studies may emphasize the impacts of air pollution rather than temperature on health, especially for respiratory diseases. One study that used the Danish Diet, Cancer, ...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Ambulance Services Associated with Extreme Temperatures and Fine Particles in a Subtropical Island

Lin

Chen

Hung

et al. 2020

Sci Rep

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“…Because of the high prevalence of cardiovascular diseases, nurses working in any place, including home, office, hospital, long-term care centers, or rehabilitation centers should be able to assess the cardiovascular system [35]. Preventing Out-of-hospital Cardiac Arrest requires a public health challenge [5], and it has turned into a major public health problem in the world [7]. A preventive measure is needed to reduce its mortality rate [12].…”

Section: Plain Language Summarymentioning

confidence: 99%

“…Out-of-hospital Cardiac Arrest occurs when a person's heart suddenly stops pumping blood because of non-cardiac reasons at home, in public locations, ambulance, the emergency room, and at any location before hospital admission [5]. Acute coronary syndrome is an important risk factor for Out-of-hospital Cardiac Arrest [6][7][8]. The global prevalence of Out-of-hospital Cardiac Arrest is high and its mean survival rate is low (9.1%).…”

Section: Introductionmentioning

confidence: 99%

Relationship of Humidity and Atmospheric Pressure With the Risk of Out-of-hospital Cardiac Arrest

Borghei

Moghadamnia

Sigaroudi

et al. 2020

J Holist Nurs Midwifery

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Introduction: Climate change, which affects human health, is one of the most important public health concerns. Few studies have examined the effects of humidity and atmospheric pressure as risk factors on the cardiac system and Out-of-hospital Cardiac Arrest. Objective: This study aimed to determine the relationship between climatic variables (humidity and atmospheric pressure) with Out-of-hospital Cardiac Arrest , and its outcome over 3 years (2016-2018). Materials and Methods: This is an ecological time-series study. Participants were 392 patients with Out-of-hospital Cardiac Arrest referred to Hospital in Rasht City, Iran from 2016 to 2018. Meteorological data and information related to Out-of-hospital Cardiac Arrest and its consequences were collected from reliable resources and were analyzed in R software. Results: Low humidity increased the relative risk of Out-of-hospital Cardiac Arrest (OR=1.54, 95%CI: 1.001-2.69, P=0.001) and failed cardiopulmonary resuscitation (OR=1.76, 95% CI; 1.006-3.79, P=0.001). Higher atmospheric pressure was associated with increased risk of Out-of-hospital Cardiac Arrest (OR=1.16, 95%CI; 1.001-1.78, P=0.001) and unsuccessful cardiopulmonary resuscitation (OR=1.039, 95% CI; 1.005-1.91, P=0.001). Conclusion: Decreased humidity and increased atmospheric pressure are associated with an increased number of Out-of-hospital Cardiac Arrest cases and failure of cardiopulmonary resuscitation. Informing people with cardiovascular disease to avoid such weather conditions, as well as preparing the medical care team and designing early warning systems, can reduce the adverse effects of climate change on the heart.

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Heat-Related Mortality/Morbidity in East Asia

Honda

Onozuka

2019

Extreme Weather Events and Human Health

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The association between ambient temperature and out-of-hospital cardiac arrest in Guangzhou, China

Cited by 36 publications

References 32 publications

Ambulance Services Associated with Extreme Temperatures and Fine Particles in a Subtropical Island

Ambulance Services Associated with Extreme Temperatures and Fine Particles in a Subtropical Island

Relationship of Humidity and Atmospheric Pressure With the Risk of Out-of-hospital Cardiac Arrest

Heat-Related Mortality/Morbidity in East Asia

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