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Updated: May 20, 2026

11:40
Quantitative Autonomic Testing
Published on: July 19, 2011
[Construction and clinical evaluation of novel methods for detecting autoinomic dysfunction]
1Kumamoto Amyloidosis Unit, Department of Laboratory Medicine, Kumamoto University Hospital, Kumamoto 860-8556, Japan. konen@fc.kuh.kumamoto-u.ac.jp
Summary
Accurate autonomic function testing aids early detection of small-fiber neuropathy. Liver transplantation can prevent FAP autonomic dysfunction progression and improve symptoms.
Area of Science:
- Neurology
- Autonomic Neuroscience
Context:
- The autonomic nervous system (ANS) regulates vital organ functions, and its dysfunction significantly impacts patient survival.
- Autonomic disturbances are critical in small-fiber neuropathy (SFN) and familial amyloidotic polyneuropathy (FAP).
Purpose:
- To evaluate novel methods for accurate autonomic function assessment in detecting SFN onset.
- To investigate the impact of liver transplantation on autonomic dysfunction in FAP patients.
Summary:
- Multiple advanced techniques including laser-Doppler flowmetry, ultrasonography, and 123I-MIBG scintigraphy were employed to precisely evaluate autonomic function.
- Liver transplantation was shown to halt the progression of autonomic dysfunction in FAP patients and ameliorate some symptoms post-operatively.
- Pain threshold assessment via A delta fiber stimulation is a valuable diagnostic adjunct for SFN, especially in cases without overt autonomic involvement.
Impact:
- Improved diagnostic accuracy for small-fiber neuropathy and autonomic dysfunction.
- Demonstrates the therapeutic potential of liver transplantation in managing FAP-related autonomic complications.
- Comparative analysis of FAP and domino-liver-transplanted patients offers insights into neuropathy pathogenesis and treatment strategies.

