What ECG changes are associated with left ventricular hypertrophy?

What ECG changes are associated with left ventricular hypertrophy?

• A. Increased voltage in QRS complexes and ST segment changes
• B. Decreased voltage in T waves and prolonged PR interval
• C. Prominent U waves and prolonged QT interval
• D. Flat or inverted P waves

Answer: (A)

Left ventricular hypertrophy (LVH) is characterized by changes in the heart's electrical activity that can be detected on an electrocardiogram (ECG). Increased voltage in the QRS complexes is a key indicator, as the enlarged left ventricle produces a greater electrical force, resulting in taller peaks in the QRS complexes seen on the ECG. Additionally, ST segment changes often accompany LVH. Due to the strain on the heart, the ST segment may show deviations from the baseline, which can manifest as either elevation or depression. These changes provide critical insights into the heart's strain and are reflective of the underlying hypertrophy of the left ventricle. This understanding of the characteristic ECG changes associated with LVH allows clinicians to assess cardiac health effectively and guide further diagnostic and therapeutic interventions.

Left ventricular hypertrophy (LVH) is characterized by changes in the heart's electrical activity that can be detected on an electrocardiogram (ECG). Increased voltage in the QRS complexes is a key indicator, as the enlarged left ventricle produces a greater electrical force, resulting in taller peaks in the QRS complexes seen on the ECG.

Additionally, ST segment changes often accompany LVH. Due to the strain on the heart, the ST segment may show deviations from the baseline, which can manifest as either elevation or depression. These changes provide critical insights into the heart's strain and are reflective of the underlying hypertrophy of the left ventricle.

This understanding of the characteristic ECG changes associated with LVH allows clinicians to assess cardiac health effectively and guide further diagnostic and therapeutic interventions.