Mortality and risk of cardiac complications among immediate survivors of accidental electric shock: a Danish nationwide cohort study
Objective Exposure to electric shock has been associated with an increased risk of developing delayed cardiac arrhythmias and cardiac diseases. We examined whether electric shock patients have an increased risk of developing cardiac disease, cardiac arrhythmias or death compared with the general Dan...
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BMJ Publishing Group
2017-08-01
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| Series: | BMJ Open |
| Online Access: | https://bmjopen.bmj.com/content/7/8/e015967.full |
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| author | Christian Torp-Pedersen Sam Riahi Lars Køber Steen Møller Hansen Peter Søgaard Rikke Mortensen Søren Hjortshøj |
| author_facet | Christian Torp-Pedersen Sam Riahi Lars Køber Steen Møller Hansen Peter Søgaard Rikke Mortensen Søren Hjortshøj |
| author_sort | Christian Torp-Pedersen |
| collection | DOAJ |
| description | Objective Exposure to electric shock has been associated with an increased risk of developing delayed cardiac arrhythmias and cardiac diseases. We examined whether electric shock patients have an increased risk of developing cardiac disease, cardiac arrhythmias or death compared with the general Danish population.Design Matched cohort study.Setting A nationwide study in Denmark from 1994 to 2011.Participants We identified 11 462 Danish patients who visited an emergency ward or were admitted to a hospital due to electric shock from 1994 to 2011. Each patient was matched for age and sex with five random controls from the Danish population.Main outcome measures Mortality, cardiac procedures and cardiac diseases following electric shock.Results A total of 7390 electric shock patients were seen at an emergency ward and 4072 electric shock patients were admitted to a hospital. The median patient age was 28.6 years (Q1–Q3, 21.3–37.7) for the emergency ward patients and 26.4 years (Q1–Q3, 18.3–37.4) for admitted patients. In both groups, most patients were male (74.0% and 76.8%). Few of the electric shock patients had a record of cardiovascular disease at baseline (364/11 462, 3.2%). The 5-year cumulative incidence of death was 0.47% (95% CI 0.29% to 0.65%) for emergency ward patients and 1.04% (95% CI 0.71% to 1.37%) for admitted patients. No difference in 5-year survival was observed compared with matched controls (emergency ward, p=0.10; admitted patients, p=0.80). Fewer than four patients received a pacemaker within 30 days.Conclusions This nationwide study did not demonstrate an increase in mortality among patients seen at hospitals after accidental electric shock compared with a background population. Cardiac procedures and diseases following electric shock were very rare. We suggest that nearly all patients can be discharged safely from the emergency room after electric shock without further observation. |
| format | Article |
| id | doaj-art-f0b75bd0a38748f48daf8c2b47df8e1f |
| institution | Kabale University |
| issn | 2044-6055 |
| language | English |
| publishDate | 2017-08-01 |
| publisher | BMJ Publishing Group |
| record_format | Article |
| series | BMJ Open |
| spelling | doaj-art-f0b75bd0a38748f48daf8c2b47df8e1f2025-02-08T11:05:09ZengBMJ Publishing GroupBMJ Open2044-60552017-08-017810.1136/bmjopen-2017-015967Mortality and risk of cardiac complications among immediate survivors of accidental electric shock: a Danish nationwide cohort studyChristian Torp-Pedersen0Sam Riahi1Lars Køber2Steen Møller Hansen3Peter Søgaard4Rikke Mortensen5Søren Hjortshøj6Public Health, University of Copenhagen, Copenhagen, DenmarkDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark2 Department of Cardiology, Rigshospitalet, Copenhagen, DenmarkUnit of Epidemiology and Biostatistics, Aalborg University Hospital, Aalborg, DenmarkDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark7 Department of Clinical Epidemiology, Aalborg University Hospital, Aalborg, Denmark2 Department of Cardiology, Aalborg University Hospital, Aalborg, DenmarkObjective Exposure to electric shock has been associated with an increased risk of developing delayed cardiac arrhythmias and cardiac diseases. We examined whether electric shock patients have an increased risk of developing cardiac disease, cardiac arrhythmias or death compared with the general Danish population.Design Matched cohort study.Setting A nationwide study in Denmark from 1994 to 2011.Participants We identified 11 462 Danish patients who visited an emergency ward or were admitted to a hospital due to electric shock from 1994 to 2011. Each patient was matched for age and sex with five random controls from the Danish population.Main outcome measures Mortality, cardiac procedures and cardiac diseases following electric shock.Results A total of 7390 electric shock patients were seen at an emergency ward and 4072 electric shock patients were admitted to a hospital. The median patient age was 28.6 years (Q1–Q3, 21.3–37.7) for the emergency ward patients and 26.4 years (Q1–Q3, 18.3–37.4) for admitted patients. In both groups, most patients were male (74.0% and 76.8%). Few of the electric shock patients had a record of cardiovascular disease at baseline (364/11 462, 3.2%). The 5-year cumulative incidence of death was 0.47% (95% CI 0.29% to 0.65%) for emergency ward patients and 1.04% (95% CI 0.71% to 1.37%) for admitted patients. No difference in 5-year survival was observed compared with matched controls (emergency ward, p=0.10; admitted patients, p=0.80). Fewer than four patients received a pacemaker within 30 days.Conclusions This nationwide study did not demonstrate an increase in mortality among patients seen at hospitals after accidental electric shock compared with a background population. Cardiac procedures and diseases following electric shock were very rare. We suggest that nearly all patients can be discharged safely from the emergency room after electric shock without further observation.https://bmjopen.bmj.com/content/7/8/e015967.full |
| spellingShingle | Christian Torp-Pedersen Sam Riahi Lars Køber Steen Møller Hansen Peter Søgaard Rikke Mortensen Søren Hjortshøj Mortality and risk of cardiac complications among immediate survivors of accidental electric shock: a Danish nationwide cohort study BMJ Open |
| title | Mortality and risk of cardiac complications among immediate survivors of accidental electric shock: a Danish nationwide cohort study |
| title_full | Mortality and risk of cardiac complications among immediate survivors of accidental electric shock: a Danish nationwide cohort study |
| title_fullStr | Mortality and risk of cardiac complications among immediate survivors of accidental electric shock: a Danish nationwide cohort study |
| title_full_unstemmed | Mortality and risk of cardiac complications among immediate survivors of accidental electric shock: a Danish nationwide cohort study |
| title_short | Mortality and risk of cardiac complications among immediate survivors of accidental electric shock: a Danish nationwide cohort study |
| title_sort | mortality and risk of cardiac complications among immediate survivors of accidental electric shock a danish nationwide cohort study |
| url | https://bmjopen.bmj.com/content/7/8/e015967.full |
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