TTR and dysautonomia: Neurological manifestations including signs of neuropathy and dysautonomia due to amyloid damage of small myelinated and unmyelinated fibres are frequently reported in patients with transthyretin CA (Goldstein, 2016; Siddiqi and Ruberg, 2018; Gonzalez-Duarte et al., 2019; Kharoubi et al., 2021; Banydeen et al., 2022b).