[Electrocardiographic diagnosis of hypertrophy of the left ventricular myocardium in patients with arterial hypertension and overweight].
OBJECTIVE
To study efficacy of different ECG criteria of hypertrophy of left ventricular myocardium (LVH) in hypertensive patients with reference to overweight and obesity.


METHODS
The authors analyse data on 100 patients (42 males and 58 females) aged 19-79 with diagnosis of arterial hypertension stage I-II. ECG was conducted in 12 leads. LVH by ECG was determined according to the following criteria: Sokolov-Lyon (S-L): Sv1+Rv5(v6) > 35 mm; Cornell voltage (Crn V): R avL +Sv3 > 28 mm (> 20 mm for females; Cornell product (Crn P): (RavL+Sv3)xQRSduration > 2440 mm x ms (for females RavL+Sv3 amplitudes + 0.6 mm). To verify L VH by echoCG, the authors used threshold values of left ventricular myocardium mass index (LVMMI) 125 g/m(2) for males and 110 g/m(2) for females. LVMMI was calculated by two methods: LVMM to body surface area (BSA) 2) LVMM to BSA of an ideal figure of a relevant height. Depending on the BMI all the patients were divided into 3 groups: with normal weight (BMI under 25 kg/m2), with overweight (BMI between 25 and 30 kg/m(2)), with obesity (BMI over 30 kg/m(2)).


RESULTS
Sensitivity of the criterion Crn-P was the highest. The S-L criterion had the least sensitivity (under 10%) in groups with overweight by more than 25 kg/m(2). In these groups sensitivity of all ECG criteria of L VH depends on some factors: on indexation of LVH by body size, gender and overweight. S-L criterion sensitivity is higher in subgroups of males irrespective of overweight and obesity.


CONCLUSIONS
Informative value of LVH ECG criteria depends on the method of LVMM indexation by body size, overweight and gender of the patients.
Saltykova
M M
MM
Riabykina
G V
GV
Oshchepkova
E V
EV
Ataullakhanova
D M
DM
Lazareva
N V
NV
Bobokhonova
A S
AS
Rogoza
A N
AN
D000328:Adult; D000368:Aged; D001794:Blood Pressure / Q000502:physiology; D015992:Body Mass Index; D001835:Body Weight; D004452:Echocardiography; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications* / Q000000981:diagnostic imaging; D017379:Hypertrophy, Left Ventricular / Q000000981:diagnostic imaging* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000150:complications* / Q000000981:diagnostic imaging; D012720:Severity of Illness Index