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In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
Published on: February 16, 2016
[The problem of indexation of left ventricular myocardial mass by body size in obese patients]
Insights
The Cornell product (Crn-P) electrocardiogram (ECG) criterion is most sensitive for detecting left ventricular myocardial hypertrophy (LVH) in hypertensive patients, regardless of body mass. Its effectiveness is influenced by body mass index and gender.
Area of Science:
- Cardiology
- Medical Diagnostics
Background:
- Hypertension is a significant risk factor for cardiovascular diseases.
- Left ventricular myocardial hypertrophy (LVH) is a common complication of hypertension.
- Accurate detection of LVH is crucial for risk stratification and management.
Purpose of the Study:
- To evaluate the diagnostic efficacy of various electrocardiogram (ECG) criteria for left ventricular myocardial hypertrophy (LVH).
- To assess how body mass, including obesity, influences the sensitivity of these ECG criteria in hypertensive patients.
Main Methods:
- Analysis of ECG data from 100 hypertensive patients (grades 1-2).
- Assessment of LVH using Sokolov-Lion (S-L), Cornell voltage (Crn-V), and Cornell product (Crn-P) criteria.
- Categorization of patients into normal weight, overweight, and obese groups based on body mass index.
Main Results:
- The Cornell product (Crn-P) criterion demonstrated the highest sensitivity across all body mass groups.
- The sensitivity of ECG criteria for LVH varied based on the specific criterion used, patient gender, and body mass index.
- Indexation methods and excessive body mass significantly impacted the informative value of ECG criteria.
Conclusions:
- The Cornell product (Crn-P) is a highly sensitive ECG criterion for LVH in hypertensive individuals, even with varying body mass.
- The diagnostic accuracy of ECG criteria for LVH is modulated by the chosen indexation method and the degree of overweight or obesity.
Aim:
To assess efficacy of different ECG-criteria of left ventricular myocardial hypertrophy (LVH) in hypertensive patients as regards body mass (obesity).
Material And Method:
Data on 100 patients (42 males and 58 females, age 19-79 years) with diagnosis of hypertension of the first-second degree were analysed. ECG was registered in 12 leads. LVH was determined by ECG by the following criteria: Sokolov-Lion (S-L): Sv1+Rv5(v6) > 35 mm; Cornell voltage (Crn-V): R avL+Sv3 > 28 mm (> 20 mm for women); Cornell product (Crn-P). According to the body mass the patients were divided into 3 groups: with normal weight, overweight and obesity. Crn = P criterion was most sensitive in all the three groups.
Results:
In the groups sensitivity of ECG criteria depends on several factors: on the method of indexation and on the gender and body mass index.
Conclusion:
Informative value of ECG criteria of LVH depends on the method of indexation and on the amount of the excessive body mass.
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