P-Wave Configuration as an Indicator of Echocardiographic Indices of Cardiac Structure and Function in Normotensive Adolescents: Results (Part 1)

In: Cardiac Structure and Function

12 Oct 2012

P-Wave Configuration as an Indicator of Echocardiographic Indices of Cardiac Structure and Function in Normotensive Adolescents: Results (Part 1)By standard criteria, all subjects had normal P-waves in ECG lead V,. P-wave duration was normal (<110 ms) in all subjects. No subject had ECG or echocardiographic evidence of left ventricular hypertrophy or left atrial abnormality. Twenty-two subjects had bimodal P-waves and 18 subjects had unimodal P-waves in lead V, as described above. buy antibiotics online
Mean values for the clinical characteristics of the two groups are given in Table 1. The subjects with bimodal P-waves were slightly younger than those in the unimodal P-wave group (12.7 ±0.8 years vs 13.3 ±0.8 years, respectively, p<0.05). Body weight tended to be greater in the bimodal P-wave group but this trend did not reach statistical significance (p = 0.081). Height, body surface area, and percentage of ideal body weight were similar in both P-wave groups. There were more male than female subjects in the bimodal P-wave group and more female than male subjects in the unimodal P-wave group, although this was not statistically different (x2 = 3.3, p>0.05).

Table 1—Clinical Characteristics by P-Wave Group 

Bimodal P Wave (n = 22)

P

Unimodal P Wave (n = 18)

Age, yr

12.7±0.8

<0.05

13.3 ±0.8

Height, cm

161 ±9

NS*

157 ±8

Weight, kg

54.45 ±13.5

NS

47.7 ±8.55

% Ideal weight

110 ±16

NS

101 ±23

Body surface area, sq m

1.6 ±0.2

NS

1.5 ±0.1

Male/female

16/6

NS

8/10


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