Introduction
Methods
Subjects
Multi-voxel 1H-MRS of PAG and bilateral dorsal pons
Statistical analysis
Results
Demographics
C (n = 16) | EM (n = 19) | CM (n = 53) |
P
| |
---|---|---|---|---|
Age, years | 39.6 ± 8.3 | 35.2 ± 10.5 | 40.6 ± 10.5 | 0.133 |
Female, n (%) | 10 (62.5) | 12 (63.2) | 44 (83.0) | 0.102 |
Age at onset, years | NA | 19.4 ± 8.1 | 21.4 ± 8.4 | 0.425 |
Disease duration, years | NA | 14.3 ± 7.6 | 19.7 ± 10.1 | 0.049* |
Headache intensitya | NA | 6.7 ± 2.0 | 7.1 ± 2.3 | 0.566 |
Headache frequency, days/month | NA | 7.5 ± 3.5 | 24.7 ± 5.8 | <0.001* |
Analgesics use, days/month | NA | 4.1 ± 4.5 | 16.3 ± 11.7 | <0.001* |
MIDAS (0–270) | NA | 19.6 ± 19.5 | 62.8 ± 56.1 | 0.005* |
BDI score (0–63) | NA | 9.9 ± 7.5 | 14.6 ± 9.2 | 0.075 |
BMI (kg/m2) | NA | 22.4 ± 3.4 | 22.5 ± 5.3 | 0.930 |
Unilateral, n (%) | NA | 12 (66.7) | 27 (51.9) | 0.278 |
Throbbing headache, n (%) | NA | 12 (66.7) | 38 (73.1) | 0.604 |
Physical activity aggravation, n (%) | NA | 15 (83.3) | 40 (76.9) | 0.568 |
Associated symptoms | ||||
Nausea, n (%) | NA | 12 (66.7) | 37 (71.2) | 0.720 |
Vomiting, n (%) | NA | 7 (38.9) | 26 (50.0) | 0.416 |
Photophobia, n (%) | NA | 10 (58.8) | 35 (67.3) | 0.566 |
Phonophobia, n (%) | NA | 13 (72.2) | 39 (75.0) | 1.0 |
1H-MRS differences among different groups
Periaqueductal gray | Dorsal pons, right | Dorsal pons, left | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
C | EM | CM |
P
| C | EM | CM |
P
| C | EM | CM |
P
| |
NAA/Cr ratio mean (SD) | 1.45 (0.21) | 1.54 (0.19) | 1.44 (0.22) | 0.228 | 1.66 (0.38) | 1.87 (0.35) | 1.64 (0.24) | 0.014* | 1.58 (0.33) | 1.78 (0.26) | 1.62 (0.23) | 0.034* |
Cho/Cr ratio mean (SD) | 1.23 (0.26) | 1.24 (0.17) | 1.20 (0.23) | 0.672 | 1.42 (0.34) | 1.44 (0.32) | 1.39 (0.21) | 0.759 | 1.37 (0.33) | 1.38 (0.28) | 1.37 (0.22) | 0.994 |
Medications overuse (MO)
Without MO (n = 23) | With MO (n = 30) | P value | |
---|---|---|---|
Age, years | 37.8 ± 10.9 | 42.8 ± 9.7 | 0.086 |
Female patients, n (%) | 18 (78.3) | 26 (86.7) | 0.419 |
Age at onset, years | 24.4 ± 8.7 | 19.1 ± 7.5 | 0.022* |
Disease duration, years | 14.3 ± 6.2 | 23.7 ± 10.6 | <0.001* |
Headache intensitya | 6.6 ± 2.6 | 7.4 ± 2.1 | 0.265 |
Headache frequency, days/month | 24.1 ± 6.4 | 25.0 ± 5.4 | 0.586 |
Analgesics use, days/month | 4.4 ± 4.8 | 25.0 ± 6.3 | <0.001* |
MIDAS (0–270) | 66.9 ± 61.1 | 59.5 ± 52.7 | 0.668 |
BDI score (0–63) | 14.8 ± 11.1 | 14.4 ± 7.8 | 0.882 |
BMI (kg/m2) | 22.3 ± 3.7 | 22.6 ± 6.4 | 0.836 |
Unilateral, n (%) | 11 (50.0) | 16 (53.3) | 0.812 |
Throbbing headache, n (%) | 14 (63.6) | 24 (80.0) | 0.189 |
Physical activity aggravation, n (%) | 19 (86.4) | 21 (70.0) | 0.166 |
Associated symptoms | |||
Nausea, n (%) | 13 (59.1) | 24 (80.0) | 0.100 |
Vomiting, n (%) | 10 (45.4) | 16 (53.3) | 0.575 |
Photophobia, n (%) | 17 (77.3) | 18 (60.0) | 0.240 |
Phonophobia, n (%) | 18 (81.8) | 21 (70.0) | 0.518 |
Periaqueductal gray | Dorsal pons, right | Dorsal pons, left | |||||||
---|---|---|---|---|---|---|---|---|---|
MO− | MO+ |
P
| MO− | MO+ |
P
| MO− | MO+ |
P
| |
NAA/Cr ratio mean (SD) | 1.48 (0.15) | 1.47 (0.27) | 0.903 | 1.63 (0.20) | 1.64 (0.30) | 0.842 | 1.59 (0.18) | 1.64 (0.29) | 0.458 |
Cho/Cr ratio mean (SD) | 1.24 (0.18) | 1.23 (0.21) | 0.820 | 1.36 (0.17) | 1.38 (0.48) | 0.668 | 1.32 (0.17) | 1.38 (0.27) | 0.291 |