Evaluation of f(QRS-T) Angle as a Marker of Coronary Artery Disease Risk in Term Pregnant Women

Objective: An indication of instability in myocardium electrical characteristics is the frontal (QRS-T) [f(QRS-T)] angle. There is a known relationship between this angle and coronary artery disease, such as arrhythmias and sudden death. The purpose of the present study was to investigate the f(QRS-T) angle in term pregnant women and its relationship with advanced maternal age, parity, hemoglobin (Hb), and total blood viscosity. Methods: A total of 247 term pregnant individuals who had no prior history of cardiac or chronic disease and similar body mess indexes (BMI) were included in the study. Patients were divided into two groups according to their ages: >= 35 and <35 years. f(QRS-T) angles were calculated manually. f(QRS-T) angles, Hb levels, and total blood viscosities were compared between the two groups. Results: Our study revealed no statistically significant differences in f(QRS-T) angle, Hb levels, or high and low total blood viscosities between the two groups (p>0.05). Additionally, no correlation was found among age, total blood viscosity, and f(QRS-T) angle in term pregnancies with similar gestational weeks and BMI. Conclusion: The angle of f(QRS-T) is narrower in term pregnancies of women aged >= 35, compared to those under 35, albeit both values fall within normal limits and are unrelated to Hb levels and total blood viscosity. Therefore, regarding this angle, there was no observed increase in extracardiac risk in term pregnancies among women aged >= 35 compared to younger pregnancies.