The prehospital 12 lead electrocardiogram is associated with improved outcomes in patients with acute coronary syndromes presenting to emergency medical services: a nationwide linked cohort study
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Author
Quinn, TomDriscoll, Timothy
Gavalova, Lucia
Halter, Mary
Gale, Chris P
Weston, Clive FM
Watkins, Alan
Munro, Scott
Davies, Glen
Rosser, Andy
Rees, Nigel
Black, Sarah
Keyword
Emergency Medical ServicesElectrocardiography
Electrocardiogram (ECG)
Stroke
Cohort Studies
Pre-hospital Care
Journal title
Emergency Medical Journal
Metadata
Show full item recordAbstract
Background Use of the Pre-Hospital 12-lead Electrocardiogram (PHECG) is recommended in patients presenting to emergency medical services (EMS) with suspected acute coronary syndrome (ACS). Objectives To investigate differences in mortality between those who did/did not receive PHECG. Methods Population-based, linked cohort study using Myocardial Ischaemia National Audit Project (MINAP) data from 2010-2017. Results Of 330,713 patients, 263,420 (79.6%) had PHECG, 67,293 (20.3%) did not. 30-day mortality was 7.8% overall, 7.1% with PHECG vs 10.9% without PHECG (adjusted Odds Ratio [aOR] 0.772, 95% confidence interval [CI] 0.748-0.795, p<0.001). 1 year mortality was 16.1% overall, 14.2% with PHECG vs 23.2% without (aOR 0.692, 95% CI 0.676-0.708, p<0.001). 144,254 patients had ST segment elevation myocardial infarction (STEMI); 130,240 (90.2%) had PHECG, 30 day mortality 8.8% overall, 8.0% with PHECG vs 15.9% without (aOR 0.588, 95% CI 0.557-0.622, p<0.001), 1 year mortality 13.1% overall, 12.1% with PHECG vs 22.8% without (aOR 0.585, 95% CI 0.557-0.614, p<0.001). 186,459 patients had non-STEMI; 133,180 (71.4%) had PHECG. 30- day mortality 7.1% overall, 6.1% with PHECG vs 9.6% without (aOR 0.677, 95%CI 0.652-0.704, p<0.001), 1 year mortality 18.3% overall, 16.3% with PHECG vs 23.3% without (aOR 0.694, 95% CI 0.676-0.713, p<0.001). 110,571 STEMI patients received primary PCI, 103,741 (93.8%) had PHECG. 30 day mortality 5.4% overall, 5.3% with PHECG vs 7.0% without (aOR 0.739, 95% CI 0.667-0.829, p<0.001). 1 year mortality 8.5% overall, 8.4% with PHECG vs 9.8% without (aOR 0.833, 95% CI 0.762-0.911, p<0.001). 26,127 (18.1%) STEMI patients received no reperfusion; 19,873 (76%) had PHECG. Mortality at 30 days 22.1% overall, 21.3% with PHECG vs 24.7% without (aOR 0.911, 95% CI 0.847-0.980, p=0.013), 1 year mortality 32.2% overall, 30.9% with PHECG, 36.4% without (aOR 0.865, 95% CI 0.810-0.925, p<0.001). Conclusion PHECG was associated with lower mortality at 30 days and 1 year in both STEMI and non-STEMI patients https://emj.bmj.com/content/38/9/A2.1 This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/ DOI http://dx.doi.org/10.1136/openhrt-2015-000281ae974a485f413a2113503eed53cd6c53
http://dx.doi.org/10.1136/emermed-2021-999.3
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