P wave dispersion is prolonged in patients with Wilson’s disease

Table 1 The demographic and clinical characteristics of the study population

	Wilson’s patients	Control group	P
	(n = 18)	(n = 15)
Age (yr)	49 ± 26	44 ± 11	0.424
Left atrium (cm)	3.1 ± 0.4	3.2 ± 0.6	0.240
Left ventricular end diastolic diameter (cm)	4.5 ± 0.3	4.7 ± 0.4	0.316
Left ventricular end systolic diameter (cm)	2.8 ± 0.3	3.0 ± 0.3	0.320
Interventricular septum thickness (cm)	0.8 ± 0.1	0.9 ± 0.1	0.435
Posterior wall thickness (cm)	0.9 ± 0.1	0.8 ± 0.1	0.349
Ejection fraction (%)	66.6 ± 6.6	64.6 ± 6.1	0.335
E (cm/s)	93.7 ± 14.3	88.2 ± 12.5	0.323
A (cm/s)	68.8 ± 14.6	75.2 ± 25.1	0.303
E/A	1.3 ± 0.4	0.8 ± 0.2	0.090
EDT (ms)	177 ± 53.2	167 ± 34.2	0.213
IVRT (ms)	68.4 ± 12.0	72.2 ± 22.4	0.275
P wave dispersion (ms)	44.7 ± 5.8	25.7 ± 2.5	0.007
Minimum P wave duration (ms)	65 ± 12	74 ± 10	0.239
Maximum P wave duration (ms)	109 ± 8	102 ± 10	0.031