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Email: wt. Received Oct 15; Accepted Nov Copyright Cardiovascular Diagnosis and Therapy. All rights reserved. This article has been cited by other articles in PMC. However, the correlations of these ECG criteria with LVH were rarely compared in military members who received rigorous training, particularly of the Asian male population.
Keywords: Cornell criteria, echocardiography, electrocardiography ECG , left ventricular hypertrophy LVH , Sokolow-Lyon criteria Introduction Left ventricular hypertrophy LVH measured by echocardiography or magnetic resonance imaging studies has been well regarded as a form of end-organ damage and an early sign of cardiac dysfunction in patients with hypertension or multiple metabolic abnormalities 1.
Twelve-lead body surface electrocardiography ECG is a cost-effective tool, and several ECG voltage criteria for identifying LVH have been widely applied in clinical practice and for researches.
Of these, both sex-independent Sokolow-Lyon and sex-specific Cornell voltage criteria are used most commonly 2 , 3. Moreover, the product of QRS duration and voltage based on the Sokolow-Lyon and Cornell criteria for detecting LVH has shown more accurately than the voltage criteria alone 4 , 5. Nevertheless, ECG-derived LVH has been associated with the occurrence of a wide range of cardiovascular disease CVD such as atrial fibrillation and stroke independent of echocardiographic LVH in the general population 6 , 7.
In contrast, professional military members have to take regular rigorous physical training including endurance and resistance exercise to maintain their outstanding fitness. Frequent exercise training and well physical fitness have been associated with lower risk of incident CVD and mortality in the general population 8 , 9.
However, there were conflicting results with regard to the cardiovascular outcomes in those taking repetitive vigorous exercise 10 , To our best knowledge, cardiac remodeling such as left ventricular muscle hypertrophy and chamber dilatation are commonly present in athletes Whether these physiological cardiac adaptations to repetitive strenuous training on future CVD and mortality events remain unclear in armed forces. Although current guideline recommended that isolated ECG voltage criterion for LVH in athletes was considered as normal cardiac adaptations to exercise, evidence for the associations of each ECG criterion with LVH estimated by imaging studies was lacking in the military members, especially of the Asian male population.
Therefore the aim of our study was to compare the Cornell criteria with the Sokolow-Lyon criteria for the echocardiographic LVH in a large military male cohort in Eastern Taiwan.
Methods Study population The Cardiorespiratory fitness and HospItalization Events in armed Forces CHIEF is a retrospective cohort consisting of 4, professional military members aged 18—50 years completing the annual health examination and undergoing any one of three exercise tests in eastern Taiwan during The study design has been described in detail previously Of these, there were subjects underwent cardiac examinations of ECG and echocardiography simultaneously for their promotions to senior rank and advanced training.
All study subjects were prepared in supine and left lateral positions and examined using parasternal long-axis and short-axis views and in the apical four and two-chamber views. On the basis of the recommendations of the American Society of Echocardiography 16 , quantification of left ventricular chamber dimension diastolic diameter and wall thickness interventricular septal and posterior wall were measured approximately at the mitral valve tips and at the onset of the QRS complex of end diastole in parasternal long axis view.
M-mode and two-dimensional measurements of left ventricular mass LVM used the leading edge-to-leading-edge method. All analyses were performed using SAS version 9. Informed consent was not required by the Board because of a retrospective study.
Results The baseline demographic, anthropometric, ECG, and echocardiographic characteristics of the military male cohort were shown in Table 1 and Table 2 respectively. The prevalence of echocardiographic LVH was 6. Table 1 Baseline characteristics of demographic, anthropometric, and electrocardiographic measurements of the military male population Variables.
Indice de Sokolow: medición, electrocardiograma e importancia clínica
Aralkis The ventricular complex in left ventricular hypertrophy as obtained by unipolar precordial and limb leads. Sokolow Sokolod, Lyon TP. The baseline examination took place between December and January Detection inice left ventricular hypertrophy by the R-wave voltage in lead aVL: A method of comparing the areas under receiver operating characteristic ROC curves derived from the same cases. Sensitivity and specificity of electrocardiographic criteria for left and right ventricular hypertrophy in morbid obesity. Accuracy and prognostic significance of electrocardiographic markers of left ventricular hypertrophy in a general population: An updated coronary risk profile: In conclusion, the Sokolow-Lyon index is not suitable as a diagnostic screening test soiolow identify patients at risk for LVH, in particular in non-obese subjects without eccentric LVH. For the remaining patients, CMR was used several weeks later for a stress-imaging test.
Resultados de Busca
Indice d’HVG : 2. Sokolow-Lyon
Índice de Sokolow