Plasma AVP* at rest and in response to HUT
| Test | Controls | Possible MSA | Probable MSA | p Value |
|---|---|---|---|---|
| AVP, vasopressin; HUT, head up tilt; NS, not significant. | ||||
| *Values are means (SE). | ||||
| aPost hoc comparisons (p<0.01): controls v patients with possible MSA. | ||||
| bPost hoc comparisons (p<0.05): controls v patients with probable MSA. | ||||
| AVP at rest (pg/ml) | 0.83 (0.09) | 0.58 (0.07) | 0.68 (0.12) | NS |
| ΔAVP (pg/ml) | 0.46 (0.11)a,b | 0.08 (0.04)a | 0.18 (0.10)b | <0.01 |