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A Retrospective Imaging Evaluation of Presynaptic Dopaminergic Degeneration in Multiple System Atrophy with Levodopa Induced Dyskinesia Cover

A Retrospective Imaging Evaluation of Presynaptic Dopaminergic Degeneration in Multiple System Atrophy with Levodopa Induced Dyskinesia

Open Access
|Jun 2020

Figures & Tables

tohm-10-1-58-g1.jpg
Figure 1

Kahraman’s visual assessment in 123I-FP-CIT SPECT images. (A) Grade 1 (normal), (B) Grade 2 (eagle wing), (C) Grade 3 (mixed), (D) Grade 4 (egg shape), and (E) Grade 5 (burst striatum).

Table 1

Patients characteristics.

With LID (n = 4)Without LID (n = 21)P value
Age (years)59.3 ± 2.1463 ± 1.890.411
Sex (M/F), n0/411/100.09a
Disease duration (months)106.8 ± 24.848.8 ± 6.98<0.001
Age at onset (months)50.3 ± 359.8 ± 1.980.057
Duration of LID (months)66.7 ± 15.9
MSA-C/MSA-P1/39/120.627
Levodopa responsiveness4/49/21<0.05
Hoehn & Yahr stage4.5 ± 0.293.7 ± 0.140.130
Rigidity on UPDRS part III5.75 ± 1.544.48 ± 0.960.587
Akinesia on UPDRS part III15.3 ± 2.8411.5 ± 1.270.222
LDD (mg)600 ± 141426 ± 980.449
LDD/body weight (mg/kg)15.8 ± 3.67.8 ± 2.00.122
LED (mg)1053 ± 158494.6 ± 4950.0424
LED/Body weight (mg/kg)25.9 ± 8.79.95 ± 110.0162
Specific binding ratio (average)0.64 ± 0.422.54 ± 0.36<0.05

[i] Abbreviations: LID: levodopa-induced dyskinesia, MSA-C: cerebellar-type multiple system atrophy, MSA-P: Parkinson-type multiple system atrophy, UPDRS: Unified Parkinson’s Disease Rating Scale, LDD: levodopa dose, LED: levodopa equivalent dose. p Value was obtained by t-test. p Valuea was obtained by fisher’s exact test (median (interquartile range)).

tohm-10-1-58-g2.png
Figure 2

Correlation of dopamine transporter single-photon emission computed tomography visual assessment grade and disease duration. (A) disease duration, (B) bradykinesia (finger tapping, rapid alternating movement, and foot tapping), (C) rigidity (neck and limbs).

Open circle; MSA patients with dyskinesia, closed circle; MSA patients without dyskinesia. p Value was obtained by Pearson’s correlation coefficient.

Abbreviation: UPDRS: Unified Parkinson’s Disease Rating Scale.

DOI: https://doi.org/10.5334/tohm.58 | Journal eISSN: 2160-8288
Language: English
Submitted on: Aug 9, 2020
Accepted on: Apr 18, 2020
Published on: Jun 15, 2020
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2020 Shin-ichi Ueno, Genko Oyama, Kazuaki Kanai, Taku Hatano, Yasushi Shimo, Nobutaka Hattori, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.