Abstract
Two types of progressive familial heart block controlled by a single gene have been described; 4 cases show that type I is progressive and that the pathogenesis is still unknown.
MeSH terms
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Adult
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Child
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Child, Preschool
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Electrocardiography
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Female
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Heart Block / diagnosis
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Heart Block / genetics*
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Heart Block / therapy
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Humans
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Infant
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Male
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Pacemaker, Artificial
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South Africa