Air pollution and activation of mobile medical team for out-of-hospital cardiac arrest

Pradeau, Catherine; Rondeau, Virginie; Lévêque, Émilie; Guernion, Pierre-Yves; Tentillier, E.; Thicoïpé, M.; Brochard, Patrick

doi:10.1016/j.ajem.2014.12.007

Cited by 22 publications

(13 citation statements)

References 13 publications

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“…Only a certain proportion of these are likely to be affected by PM 2.5 exposure. The finding of increased PM 2.5 concentration not being associated with cardiac arrest contrasts with the results of several other studies [12][13][14]26,30]. However, the confidence intervals for this category were wide and therefore, the results should be interpreted with caution.…”

Section: Discussioncontrasting

confidence: 56%

Did Fine Particulate Matter from the Summer 2016 Landscape Fires in Tasmania Increase Emergency Ambulance Dispatches? A Case Crossover Analysis

Edwards

Williamson

Williams

et al. 2018

Fire

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During summer in early 2016, over 70 landscape fires in Tasmania (Australia) caused several severe episodes of fire smoke across the island state. To assess the health impact of the fire smoke, a case crossover analysis was performed, which measured the association between increased concentrations of PM 2.5 and emergency ambulance dispatches (EAD) from 1 January to 31 March 2016. Control days were matched by latitude and longitude, day of the week and calendar month. Exposure data were obtained from air quality monitoring stations at lag times of 1-48 h and for the 24-h mean on the same day and 1-day lag. Positive associations were observed between an increase of 10 µg/m 3 in PM 2.5 and EAD for stroke on the same day (OR 1.10, 95% CI 1.02-1.19) and at 1-day lag (OR 1.10, 95% CI 1.02-1.18). Furthermore, there were non-significant increases in breathing problems (OR 1.04, 95% CI 1.00-1.08) and diabetic problems (OR 1.11,) at 1-day lag. The EAD for all causes were not increased. These findings will be used for ambulance service planning and public health risk communication in future landscape fire events.

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Section: Discussioncontrasting

confidence: 56%

Did Fine Particulate Matter from the Summer 2016 Landscape Fires in Tasmania Increase Emergency Ambulance Dispatches? A Case Crossover Analysis

Edwards

Williamson

Williams

et al. 2018

Fire

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“…The risk of OHCA increased with increasing ambient PM levels 11,[44][45][46][47] . Ozone has also been associated with OHCA, while other pollutants are less likely to be associated with OHCA 48 .…”

Section: Discussionmentioning

confidence: 97%

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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“…Previous diseases might play an important role in individuals' susceptibility towards O 3related risks of mortality or OHCA. Several studies have investigated O 3 exposure and total and cardiorespiratory mortality [27,29,71,72], OHCA [73][74][75][76], and other morbidities [5,[77][78][79][80][81], but studies focusing on risks based on individuals' previous diseases are rare. In one study secondary causes of death were used as surrogates for previous diseases [70] and in two other studies previous disease histories were used [33,69].…”

Section: Based On Existing Diseasesmentioning

confidence: 99%

Short-term effects of air pollution on out-of-hospital cardiac arrest in Stockholm

Raza

Bellander

Bedada

et al. 2013

European Heart Journal

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Air pollution and activation of mobile medical team for out-of-hospital cardiac arrest

Cited by 22 publications

References 13 publications

Did Fine Particulate Matter from the Summer 2016 Landscape Fires in Tasmania Increase Emergency Ambulance Dispatches? A Case Crossover Analysis

Did Fine Particulate Matter from the Summer 2016 Landscape Fires in Tasmania Increase Emergency Ambulance Dispatches? A Case Crossover Analysis

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

Short-term effects of air pollution on out-of-hospital cardiac arrest in Stockholm

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