Research Article

Intestinal Transit in Early Moderate Parkinson’s Disease Correlates with Probable RBD: Subclinical Esophageal Dysmotility Does Not Correlate

Table 1

Demographic, clinical, and scintigraphy data from patients with Parkinson disease (PD) and healthy controls (HC).

PD patients (n = 30)Healthy controls (n = 28)P value

Demographical and clinical data
Sex, male/female20/1018/100.99
Age, years71 (66.6–74.6)71.5 (66.9–75.8)0.85
Height, cm175.1 ± 9.5173.5 ± 8.70.51
BMI, kg/m224.8 ± 3.625.7 ± 3.10.29
Time since diagnosis, years6.5 ± 3.4N/AN/A
Motor symptoms duration, years9.0 ± 4.0N/AN/A
Hoehn and Yahr stage (1/2/3)4/23/3N/AN/A
MDS-UPDRS part III23.7 ± 7.9N/AN/A
LEDD (mg of levodopa equivalents per day)773.7 ± 272.1N/AN/A
Laxatives used (0/1/2/3/4 different types)11/11/6/1/121/7/0/0/00.018
Orthostatic hypotension (yes/no)14/130/27<0.0001
ROM (number of markers)31.3 ± 14.721.0 ± 9.10.002
Colonic transit time (days)3.6 ± 1.52.6 ± 0.90.002
MoCA score26.6 ± 1.827.5 ± 2.40.037
Sniffin’ Sticks score6.9 ± 2.8412.6 ± 1.48<0.0001
RBDSQ score5.5 (4–8)1 (0–2)<0.0001
ROME III functional constipation11 (5–23.5)2 (0–4.8)<0.0001
ROME III functional esophageal disorders3.5 (0–10.3)0 (0–3)0.12
SCOPA-AUT16.5 (13.8–22.3)7.5 (5–10.8)<0.0001
MDT-PD total points10 (4.5–20.5)0 (0–3)<0.0001
MDT-PD weighted score3.5 (2.3–5.1)2.4 (2.4–3.0)0.12

Algorithm-based analyses of esophageal scintigraphy
Total transit (s)5.47 (5.47–6.25)5.77 (4.90–8.06)0.47
Distal 6 centimeters (s)2.23 (1.77–3.78)1.88 (1.61–2.78)0.05
Distal 4 centimeters (s)2.09 (1.77–3.78)1.56 (1.31–2.20)<0.017
Distal 2 centimeters (s)1.63 (1.02–2.49)1.10 (0.77–1.53)<0.040

Region of interest based analyses of esophageal scintigraphy
Total transit, ROI 1–10 (s)6.41 ± 1.456.01 ± 0.840.35
ROI 1–40.90 ± 0.310.78 ± 0.200.11
ROI 7–103.11 ± 0.732.89 ± 0.640.28
Upper part (total passage time, s)1.65 ± 0.321.63 ± 0.310.86
Distal part (total passage time, s)6.76 ± 2.915.42 ± 1.130.075

Data given as mean ± SD or median (interquartile range). N/A, not applicable; BMI, body mass index; MDS-UPDRS, Movement Disorder Society-Unified Parkinson’s Disease Rating Scale; LEED, levodopa equivalent daily dose; MoCA, Montreal cognitive assessment; RBDSQ, REM sleep behavior disorder screening questionnaire; MDT-PD, Munich dysphagia test-Parkinson’s disease.