A trend in epidemiology and outcomes of out-of-hospital cardiac arrest by urbanization level: A nationwide observational study from 2006 to 2010 in South Korea

Ro, Young Sun; Shin, Sang Do; Song, Kyoung Jun; Lee, Eui Jung; Kim, Joo Yeong; Ahn, Ki Ok; Chung, Sung Phil; Kim, Young Taek; Hong, Sung Ok; Choi, Jung Ah; Hwang, Sung Oh; Oh, Dong Jin; Park, Chang Bae; Suh, Gil Joon; Cho, Sung-Il; Hwang, Seung Sik

doi:10.1016/j.resuscitation.2012.12.020

Cited by 176 publications

(125 citation statements)

References 26 publications

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“…2 Despite significant efforts to improve the outlook for OHCA patients, recent studies have diverged regarding whether outcomes for OHCA are improving. [3][4][5][6][7] Sasson et al 3 compiled data from 79 studies including 142 740 patients and demonstrated that survival to hospital discharge remained unchanged from 1980 to 2008. In contrast, several European 4,5 and Asian countries 6,7 have reported temporal improvements in survival after OHCA.…”

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confidence: 99%

Trends in Short- and Long-Term Survival Among Out-of-Hospital Cardiac Arrest Patients Alive at Hospital Arrival

et al. 2014

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Many of these countries have a nationwide surveillance or a nationally coordinated system to manage patients with out-of-hospital emergencies. In these contexts, it is possible that quality improvement initiatives could be designed and translated more effectively, leading to improved survival for OHCA patients. It remains unclear whether findings from these studies are applicable in North America, where emergency medical services are organized by smaller jurisdictions and patients are managed by hundreds of destination hospitals. 2 In Ontario, for example, the population of 13.8 million is served by 53 individual land-based emergency medical service providers, with ≈280 destination hospitals providing postarrest care. 8 Population-level surveillance studies are critical to inform policy and evaluate current systems of care.Background-Out-of-hospital cardiac arrest (OHCA) is associated with a poor prognosis and poses a significant burden to the healthcare system, but few studies have evaluated whether OHCA incidence and survival have changed over time. Methods and Results-A population-based cohort study was conducted, including 34 291 OHCA patients >20 years of age who were transported alive to the emergency department of an acute-care hospital from April 1, 2002, to March 31, 2012 Patients with life-threatening trauma and those who died before hospital arrival were excluded. The overall age-and sex-standardized incidence of OHCA patients who were transported alive was 36 cases per 100 000 persons and did not significantly change over the study period. Cardiac risk factor prevalence increased significantly, whereas the rate of most cardiovascular conditions decreased significantly. The 30-day survival improved from 9.4% in 2002 to 13.6% in 2011; 1-year survival improved from 7.7% to 11.8% (P<0.001). Patients hospitalized in 2011 were significantly more likely to survive 30 days (adjusted odds ratio, 1.47 [95% CI, 1.22-1.77]) and 1 year (adjusted odds ratio, 1.55 [95% CI, 1.27-1.91]) compared with 2002. A significant interaction between temporal trends in survival improvement and age group was observed in which the improvement in survival was largest in the youngest age groups. Conclusions-OHCA patients who were transported alive are increasingly likely to have cardiovascular risk factors but less likely to have previous cardiovascular conditions. The overall incidence of OHCA patients transported to hospital alive did not change over the past decade. Short-and longer-term survival after OHCA has substantially improved, with younger patients experiencing the greatest improvement. Accordingly, the main objective of this study was to evaluate recent trends in the patient characteristics, incidence, and the survival of patients after OHCA. Methods Data SourcesOur analytic data sets were created by linking together multiple large administrative databases in Ontario using unique encrypted patient identification numbers to protect patient confidentiality. The Canadian Institute of Health Information Discharge Abstract...

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confidence: 99%

Trends in Short- and Long-Term Survival Among Out-of-Hospital Cardiac Arrest Patients Alive at Hospital Arrival

et al. 2014

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“…Hence, the f (time) value is provided by Equation (8), and the final impedance cutoff length is calculated using Equation (9).…”

Section: Finding Optimal Locations For Additional Aedsmentioning

confidence: 99%

“…Therefore, the survival rate of patients with acute cardiac arrest is closely related to first-aid [7], which is important in increasing the survival rates. Despite this fact, the bystander CPR rate in South Korea is low because people worry about harming others by performing inadequate CPR [8,9]. In this case, the patients have no other choice but to wait for emergency medical service (EMS) to come.…”

Section: Introductionmentioning

confidence: 99%

Locating Automated External Defibrillators in a Complicated Urban Environment Considering a Pedestrian-Accessible Network that Focuses on Out-of-Hospital Cardiac Arrests

Kwon

Kim

Lee

et al. 2017

IJGI

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Automated external defibrillators (AEDs) are portable devices that defibrillate and diagnose sudden-cardiac-arrest patients. Therefore, AEDs are widely installed in public places such as airports, schools, sport complexes, etc., and the installation of AEDs is required by law in these places. However, despite their usefulness, AEDs are mostly installed indoors with limited coverage outdoors. Hence, this study conducts research in the placement of AEDs in outdoor locations. This study considers a complicated urban environment using a pedestrian network dataset and network barriers. We draw on the Teitz and Bart's (1968) heuristic method that was built in the location-allocation solver in ArcMap. The results of this study found that a total of 455 AEDs, including 227 pre-installed AEDs, could be placed in the study area, thus providing an additional 228 devices. Compared with 10 different installation methods that were set as experimental groups, our test results found that additional installations were able to cover 10% to 30% more actual out-of-hospital cardiac-arrest cases. The main contribution of this study is the proposal of a new method in locating AEDs in optimal areas while considering complicated urban environments. We predict that the cardiac-arrest-related mortality rate would be reduced through implementing the findings of this study.

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“…A recent study in Australia reported an OHCA incidence rate of 53 events per 100,000 person-years between the years 2004-2005, and a decreasing trend leading to a rate of 48 events per 100,000 person-years between the years 2009-2010 [34]. In contrast, a recent study in South Korea showed that the OHCA incidence rate increased from 38 events per 100,000 person-years in 2006 to 47 in 2010 [35]. While the incidence rates of OHCA in these countries had substantial differences ten years ago, they seemed to be reasonably comparable in recent years, suggesting a trend toward more similar patterns of prevention and hospital care delivery across countries.…”

Section: Editorialmentioning

confidence: 99%

Out-of-Hospital Cardiac Arrest: Better Prognosis When You Know the Cardiac Rhythm and You Can Shock it

2016

JCCR

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A trend in epidemiology and outcomes of out-of-hospital cardiac arrest by urbanization level: A nationwide observational study from 2006 to 2010 in South Korea

Cited by 176 publications

References 26 publications

Trends in Short- and Long-Term Survival Among Out-of-Hospital Cardiac Arrest Patients Alive at Hospital Arrival

Trends in Short- and Long-Term Survival Among Out-of-Hospital Cardiac Arrest Patients Alive at Hospital Arrival

Locating Automated External Defibrillators in a Complicated Urban Environment Considering a Pedestrian-Accessible Network that Focuses on Out-of-Hospital Cardiac Arrests

Out-of-Hospital Cardiac Arrest: Better Prognosis When You Know the Cardiac Rhythm and You Can Shock it

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