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Cardiac sympathetic degeneration informs the duration of the prodromal stage of body-first Lewy body disease

2026-01-30 neurology Title + abstract only
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Body-first Lewy body disease (LBD) is hypothesized to begin in the peripheral autonomic nervous system, years before nigrostriatal involvement. Isolated REM sleep behaviour disorder (iRBD) is considered prodromal body-first LBD, but the duration of the prodromal phase remains unknown. We aimed to determine the progression rate of cardiac sympathetic denervation using [123I]meta-iodobenzylguanidine (MIBG) scintigraphy and employ the resulting curves to estimate the prodromal period of body-first ...

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