Table 3.
Autonomic Tests.
| Case | CVR-R (%) |
Valsalva ratio |
Valsalva test (mmHg) |
Heat-up tilt test | NA infusion (mmHg) |
Myocardial MIBG scintigraphy | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| sBP (mmHg) |
dBP (mmHg) |
HR (beats/ min) |
TPR change at 60° from baseline (%) | Early H/M ratio |
Delay H/M ratio |
Wash out rate (%) |
|||||
| 1 | 0.71 | 1.00 | -7 | -47 | -38 | -1 | -54.9 | ND | 1.48 | 1.22 | 65.6 |
| 2 | 0.95 | 0.94 | -2 | −73 | −50 | +32 | ND | +21 | 1.99 | 1.70 | 41.0 |
| 3 | 1.03 | 1.03 | +15 | −23 | −29 | +10 | -41.5 | +30 | 1.86 | 1.27 | 72.4 |
| 4 | 1.16 | 0.90 | -4 | −7 | 0 | +19 | -25.9 | +13 | 2.30 | 1.55 | 72.7 |
| 5 | 0.68 | 1.00 | -3 | -23 | −21 | +6 | -8.2 | +29 | ND | ND | ND |
CVR-R: coefficient of variation of R-R intervals, H/M: heart-to-mediastinum, dBP: diastolic blood pressure, HR: heart rate, MIBG: (123)I-metaiodobenzylguanidine, NA: noradrenaline, ND: not determined, sBP: systolic blood pressure, TPR: total peripheral resistance
The normal control values for CVR-R, Valsalva ratio, Valsalva test, sBP change, TPR change, NA infusion, early H/M ratio, delay HM ratio, and washout rate are>1.41%, ≥1.29, >0 mmHg, <20 mmHg, >0%, ≤20 mmHg, ≥2.2, ≥2.2, and ≤34%, respectively (14).