Key result
Primary interpretation of emergency department ECGs by senior emergency medicine residents was associated with a low error rate, accounting for only 1.5% of identified quality assurance errors.
Why the study?
Senior third-year emergency medicine residents serve as initial interpreters of all ED ECGs, but the accuracy and impact on adverse quality assurance events remained unknown.
Does primary ECG interpretation by senior emergency medicine residents result in a low rate of adverse quality assurance events?
Observational (n=92,928)
No
Does primary ECG interpretation by senior emergency medicine residents result in a low rate of adverse quality assurance events?
Primary ECG interpretation by senior emergency medicine residents is associated with a very low rate of adverse quality assurance events, supporting its use as an educational model.
Supports resident primary ECG interpretation in ED QA; leaves open prospective validation of clinical outcomes.
OBJECTIVE: Electrocardiogram (ECG) interpretation skills are of critical importance for diagnostic accuracy and patient safety. In our emergency department (ED), senior third-year emergency medicine residents (EM3s) are the initial interpreters of all ED ECGs. While this is an integral part of emergency medicine education, the accuracy of ECG interpretation is unknown. We aimed to review the adverse quality assurance (QA) events associated with ECG interpretation by EM3s. METHODS: We conducted a retrospective study of all ED ECGs performed between October 2015 and October 2018, which were read primarily by EM3s, at an urban tertiary care medical center treating 56,000 patients per year. All cases referred to the ED QA committee during this time were reviewed. Cases involving a perceived error were referred to a 20-member committee of ED leadership staff, attendings, residents, and nurses for further consensus review. Ninety-five percent confidence intervals (CIs) were calculated. RESULTS: EM3s read 92,928 ECGs during the study period. Of the 3,983 total ED QA cases reviewed, errors were identified in 268 (6.7%; 95% CI, 6.0%-7.6%). Four of the 268 errors involved ECG misinterpretation or failure to act on an ECG abnormality by a resident (1.5%; 95% CI, 0.0%-2.9%). CONCLUSION: A small percentage of the cases referred to the QA committee were a result of EM3 misinterpretation of ECGs. The majority of emergency medicine residencies do not include the senior resident as a primary interpreter of ECGs. These findings support the use of EM3s as initial ED ECG interpreters to increase their clinical exposure.
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Bilello et al. (2020) conducted an observational in Emergency department patients requiring electrocardiogram (n=92,928). Primary ECG interpretation by senior emergency medicine residents was evaluated on Proportion of quality assurance errors involving ECG misinterpretation or failure to act on an ECG abnormality by a resident (95% CI 0.0%-2.9%). Primary interpretation of emergency department ECGs by senior emergency medicine residents was associated with a low error rate, accounting for only 1.5% of identified quality assurance errors.
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