Correlation Between The Number of Pathological Q waves and Left Ventricular Ejection Fraction Among Patients with ST-Segment Elevation Myocardial Infarction

Article Type:
Research/Original Article (دارای رتبه معتبر)

Pathological Q waves in an electrocardiogram (ECG) are robust prognostic markers in patients with ST-segment elevation myocardial infarction (STEMI), a leading global cause of death. Accurately identifying high-risk patients with STEMI is essential to provide tailored management, thereby improving patient outcomes. Thus, this study aims to evaluate the relationship between the number of leads with pathological Q wave in the first ECG and left ventricular ejection fraction (LVEF) before discharge.


This retrospective study reviewed the records of 152 STEMI patients meeting inclusion criteria at Taleghani Hospital from April 2014 to August 2018. The initial ECGs, angiography, and echocardiography data were extracted, read by cardiologists, and prepared for analysis.


The majority of patients (87.5%) were males, and 69.7% had a pathological Q wave at the first ECG. The median of LVEF was significantly lower in patients with a pathological Q wave than in patients without a pathological Q wave (45 versus 50, p-value < 0.001). In addition, there was a mild negative correlation between the number of pathological Q waves and LVEF (r = -0.318, p-value < 0.001).


This study reveals the presence of a mild negative linear relationship between LVEF and the number of pathological Q waves in STEMI patients.

Journal of Cardio -Thoracic Medicine, Volume:11 Issue: 3, Summer 2023
1199 to 1206  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 1,390,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
In order to view content subscription is required

Personal subscription
Subscribe for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!