Abstract
Aim of the study was to assess the effect of KT on heart conduction in HD children. Non-invasive electrocardiographic method of BSPM was used. Isochrone maps, presenting a VAT distribution, were taken from eight HD patients and 26 normal subjects. Patients were divided into two groups: I--three children were HD <12 months prior to KT; II--five children were HD >12 months prior to KT. After KT, the groups were marked as IP and IIP. Serum iPTH and phosphate levels were significantly higher in both HD groups than in controls, with a considerable normalization after transplantation. HD patients demonstrated neither conduction abnormalities on ECG nor left ventricular hypertrophy. Group-mean VAT maps revealed: I and II--similar patterns of complete LBBB; IP--partial normalization to a pattern of anterior fascicle block; IIP--preserved pattern of LBBB. Intraventricular conduction disturbances found in HD children using BSPM were alleviated by KT. Short HD therapy increases a chance of conduction disturbances regression after KT, contrary to the longer HD treatment. BSPM is more sensitive than standard ECG in detecting heart conduction impairments in the HD patients.
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