la sensibilidad y especificidad de los criterios electrocardiográficos para la hipertrofia ventricular izquierda según métodos de Romhilt-Estes, Sokolow-Lyon, . Diagnóstico de la hipertrofia ventricular izquierda por electrocardiografía: Utilidad de los nuevos criterios. Article · September with 14 Reads. Cite this . Algunos criterios ECG como Sokolow, Cornell, Gubner-Ungerleider, onda RaVL y la suma del QRS de 12 derivaciones se estudiaron no sólo en voltaje, sino.
|Published (Last):||28 March 2017|
|PDF File Size:||17.96 Mb|
|ePub File Size:||18.51 Mb|
|Price:||Free* [*Free Regsitration Required]|
Evaluations included clinical examination, an electrocardiogram ECGand anthropometric and arterial measurements prior to echocardiography.
There was a problem providing the content you requested
The latter had the lowest indexes of sensitivity, but the highest, statistically significant specificity, in comparison with the other three. To determine normal maximal amplitudes, Casale et al 10 used 20mm for women and 28mm for men, in random form, based on the analysis of the voltage differences between sexes, performed by the authors themselves. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.
These methods, together with Sokolow-Lyon’s, which uses the sum of fixed voltages, offer the advantage of easy application, but the disadvantage of applying the same index for all age groups without due correction. Yang and Macfarlane 61 observed differences in the duration of the QRS complex between sexes, it being greater in men.
Lessa I, Fonseca J. Utility of new eletrocardiographic models for left ventricular mass in older adults. The degree of agreement in the methods was analyzed separately for male and female patients. Levy et al 25 observed that despite the greater prevalence of LVH in women, the sensitivity of the electrocardiogram was lower.
Recommendations regarding quantitation in M-Mode echocardiography: Norman JE, Levy D. Noninvasive assessment of left ventricular mass, chamber volume, and contractile function. This may explain the shortened voltages in some cardiac areas with an ensuing decrease in the sensitivity of the method 62, ECGs and echocardiograms of each patient were taken on the same day.
An analysis of electrocardiographic criteria for determining left ventricular hypertrophy
The application of corrective factors, mainly using technological advances in electrocardiographic equipment may significantly raise the sensitivity of the methods in a routine fashion in the same way as left ventricular mass is corrected by body surface obtained echocardiographically. This did not occur for the majority of the averages of the White-Bock and Romhilt-Estes criteria, among populations with or without hypertrophy.
Left ventricular mass was still within the range of what was considered normal by methods used even though it was still significantly higher than that in the normal group.
The low sensitivity for men relative to women found in our study stimulated the investigation of lower voltage amplitudes for the method, with the intention of improving its sensitivity. Prevalence and natural history of electrocardiographic left ventricular hypertrophy.
The Rio de Janeiro Study.
A decrease in the amplitudes of the first 2 criteria with aging was observed both in men and women, while the Cornell amplitude increased slightly with aging in men and decreased slightly with aging in women. Casale et al 53 analyzed the Cornell criterion developed by the authors in crierios, men and women, in comparison with pre-existing criteria and compared electrocardiographic criteria with findings at necropsy.
In this study, this correction decreased the method’s sensitivity in men with a recovery of sensitivity when applied at the 20mm amplitude voltage, as done in women.
Reichek N, Devereux RB. Results showed that although an increase occurred in mass in contrast with what was expected, a progressive decrease in the voltages occurred in the Sokolow-Lyon-Rappaport, Sokolow-Lyon, and Cornell criteria, both in women and in men. Left ventricular hypertrophy in left bundle block. Electrocardiographic detection of left ventricular hypertrophy using echocardiographic determination of left ventricular mass as the reference standard: Patterns of left ventricular hypertrophy and geometric remodeling in essential hypertension.
J Electrocardiol ; 27 suppl: Body surface was obtained using the Dubois and Dubois formula All measurements were taken at the end of ventricular diastole, corresponding criteriox the beginning of the QRS complex recorded on the sokokow taken electrocardiographic tracing. Tracings showing the correlation between Sokolow-Lyon-Rappaport, Sokolow-Lyon, and Cornell criteria with anterior-posterior diameters of the thorax criteriis shown in Figure 4.
Subjects less than 12 years of age included 34 females and 41 males. However, in our study, sensitivity in women was much lower than that found by those authors.
A systematic error occurred in this study in which the authors inverted voltages between men and women, considering a voltage of 20mm for men and of 28mm for women for the Cornell criterion. We then correlated age, anterior-posterior thoracic diameter, critrios perimeter, and left ventricular mass with voltage amplitudes used for sokolwo. Angiotensinogen T allele dosage is associated with blood pressure phenotypes.
The anterior-posterior diameter of the thorax seems to have exerted an influence on voltage amplitudes by which their increase causes a reduction in the amplitudes of critetios all criteria in women, suggesting a probable effect of the mammae on the reduction of the electrode capacity to capture cardiac electrical potentials.
In this study, we determined the electrocardiographic criterion that had the greatest sensitivity for detecting left ventricular overload in men and women.
No statistically significant difference occurred for the Cornell and Sokolow-Lyon criteria. Our study demonstrated a lower sensitivity and specificity in both men and in women. Specificity in the present study was lower than that ssokolow the work cited, both in men and in women. Three hundred six subjects, 85 with increased left ventricular mass LVM based on echocardiographic findings and with normal LVM, were studied according to age, sex, body surface and body mass index.