Percentage of abnormal responses to various autonomic function tests in nine patients with Fisher syndrome
| Criteria of abnormality | Initial (n=9) | 4 weeks (n=6) | 12 weeks (n=5) | 24 weeks (n=5) | |
|---|---|---|---|---|---|
| BPST, blood pressure responses to active standing; DBRRIV, RR interval variation during deep breathing; rest RRIV, RR interval variation during rest; SH, blood pressure response to sustained handgrip; VR, Valsalva ratio. | |||||
| VR | 44 | 0 | 0 | 0 | |
| Rest RRIV | 11 | 17 | 20 | 20 | |
| DBRRIV | 22 | 17 | 0 | 0 | |
| SH | ≤10 mm Hg | 67 | 83 | 20 | 0 |
| BPST | >20 mmHg | 22 | 0 | 0 | 0 |