Accuracy of 12 Lead ECG For Diagnosis of Posterior Myocardial Infarction Taking 15 Lead ECG As Gold Standard
10.15520/jmbas.v6i9.149
Resumen
INTRODUCTION
The acute management of ST-elevation myocardial infarction (STEMI) is based on interpretation of the ECG. This
is typically undertaken by doctors in the emergency department (ED) and acute medical unit. Increasingly, the ECG
diagnosis is being made by paramedics, allowing them to pre-alert the ED or even initiate thrombolytic therapy in
regions where primary angioplasty is unavailable. Identification of ST-segment elevation or presumed new left-bundle
branch block in combination with a history of cardiac chest pain results in prompt initiation of reperfusion therapy.
SUBJECT AND METHOD
A cross sectional study was done at Cardiology Department, Bolan Medical College, Quetta. Total duration was from
01/02/2018-30/07/2018. 196 patients were recruited from Out Patient Department and Emergency Department of Bolan
Medical Complex, Quetta on the basis of inclusion/exclusion criteria, that is all patient with chest pain and age >18 and
< 70 with posterior MI as per operational definition presenting within 12 hours of symptoms were included and all
patients with underlying LBBB on ECG, PPM and paced rhythm on ECG and pericardial effusion were excluded as
they are effect modifiers and bring bias in study.
RESULTS
Total 196 patients were included in the study according to the inclusion criteria of the study. Mean age (years) in the
study was 40.28+14.38 whereas there were 123 (62.8) male and 73 (37.2) female patients in the study. The diagnostic
accuracy, sensitivity, specificity, PPV and NPV of 12 lead ECG for diagnosis of posterior myocardial infarction taking 15
lead ECG as gold standard was 82.14%, 87.12%, 57.58%, 91.03% and 47.50% respectively.
CONCLUSION
The study concludes that diagnostic accuracy of 12 lead ECG for diagnoses of posterior wall myocardial infarction was
high. The high sensitivity identified more patients to be re vascularized early.
How to Cite
Sikander Azeem Panezai, Waqar Azim, Kaleemullah Kakar, Alamzeb khan, Sehrish Ghani Tareen, Zarghoona Tareen (2018). Accuracy of 12 Lead ECG For Diagnosis of Posterior Myocardial Infarction Taking 15 Lead ECG As Gold Standard. Journal of Medical Biomedical and Applied Sciences , Vol. 6 Núm. 9 (2018) , 141-145 . https://doi.org/10.15520/jmbas.v6i9.149