TABLE 3.
Comparison of hemodynamic data between patients with initial and sustained OH
| Variable | Non‐OH (n = 354) | Initial OH (n = 54) | Sustained OH (n = 65) | Overall p‐value |
|---|---|---|---|---|
| CO (L/min) | ||||
| Supine | 4.6 ± 1.0 | 4.4 ± .9 | 4.8 ± .9 | .092 |
| Within 15 s | 4.8 ± 1.1 b | 4.8 ± .9 c | 5.3 ± 1.2 b , c | .008 |
| at 3 min | 4.9 ± 2.8 | 4.8 ± 1.0 | 5.1 ± 1.3 | .728 |
| SVR (dynes·sec·cm−5) | ||||
| Supine | 1445 ± 321 | 1472 ± 338 | 1428 ± 306 | .757 |
| Within 15 s | 1352 ± 332 a , b | 1216 ± 297 a | 1175 ± 347 b | <.001 |
| at 3 min | 1475 ± 379 | 1378 ± 326 b , c | 1140 ± 320 b , c | <.001 |
| Systolic BP (mm Hg) | ||||
| Supine | 118 ± 16 b | 117 ± 13 c | 128 ± 18 b , c | <.001 |
| Within 15 s | 109 ± 21 a | 88 ± 16 a , c | 104 ± 20 c | <.001 |
| at 3 min | 123 ± 20 b | 118 ± 18 c | 109 ± 18 b , c | <.001 |
| Diastolic BP (mm Hg) | ||||
| Supine | 69 ± 9 | 71 ± 7 | 69 ± 9 | .404 |
| Within 15 s | 64 ± 12 a , b | 47 ± 8 a , c | 53 ± 11 b , c | <.001 |
| at 3 min | 75 ± 13 b | 72 ± 10 c | 57 ± 9 b , c | <.001 |
| HR (beats/min) | ||||
| Supine | 66 ± 10 | 65 ± 11 | 65 ± 10 | .929 |
| Within 15 s | 75 ± 12 | 77 ± 14 | 74 ± 12 | .325 |
| at 3 min | 73 ± 11 | 74 ± 12 | 71 ± 12 | .309 |
Abbreviations: OH, orthostatic hypotension; CO, cardiac output; SVR, systemic vascular resistance; BP, blood pressure; HR, heart rate.
a
Significant difference between non‐OH and initial OH.
b
Significant difference between non‐OH and sustained OH.
c
Significant difference between initial OH and sustained OH.