Related Experiment Videos
[A painless decrease in the ST segment during the 24-hour ECG monitoring of hypertensive patients]
Terapevticheskii Arkhiv
|January 1, 1991
Summary
Essential hypertension patients with specific ECG abnormalities, particularly left ventricular hypertrophy with "strain", face higher risks of silent ST segment depression during Holter monitoring. Early repolarization phase disorders are key indicators.
Area of Science:
- Cardiology
- Clinical Electrophysiology
Background:
- Essential hypertension is a prevalent cardiovascular risk factor.
- Subclinical myocardial ischemia can occur in hypertensive patients.
Purpose of the Study:
- To investigate predictors of silent ST segment depression in stage II essential hypertension.
- To identify high-risk individuals for myocardial ischemia.
Main Methods:
- Daily Holter electrocardiogram (ECG) monitoring and echocardiography were performed.
- 61 men with stage II essential hypertension were analyzed.
Main Results:
- 55.7% of patients experienced painless ST segment depression.
- Patient age, hypertension duration/intensity, and pain patterns did not predict ST segment instability.
- Initial repolarization disorders (ECG signs of left ventricular hypertrophy with "strain") were significant predictors.
- Left ventricular mass > 200g and asymmetry index ≥ 1.5 were associated with increased silent ST depression episodes.
Conclusions:
- ECG signs of left ventricular hypertrophy with "strain" are crucial for identifying hypertensive patients at risk for silent ST depression.
- Echocardiographic parameters like left ventricular mass and asymmetry index further refine risk stratification.