Table 2.
Evaluation of arterial stiffness parameters before and after cardiac resencronization therapy
| Heart failure patients (n = 44) | Pre CRT | Post CRT | P value* |
|---|---|---|---|
| mean ± SD | mean ± SD | ||
| Six minute walking test (m) | 217.1 ± 118.6 | 323.8 ± 152.5 | <.001 |
| Heart rate (bpm/min) | 71.1 ± 17.4 | 75.5 ± 11.8 | .099 |
| QRS duration (msn) | 150.0 ± 18.3 | 115.7 ± 25.8 | <.001 |
| Augmentation index (Alx) (%) | 22.2 ± 13.5 | 18.0 ± 10.2 | .184 |
| Pulse wave velocity (PWV) (m/sn) | 9.9 ± 1.5 | 10.4 ± 1.8 | .009 |
| Systolic blood pressure (SBP) (mm Hg) | 116.8 ± 19.1 | 129.4 ± 20.6 | .007 |
| Diastolic blood pressure (DBP) (mm Hg) | 75.4 ± 13.3 | 80.1 ± 10.1 | .145 |
| Mean arterial pressure (MAP) (mm Hg) | 94.4 ± 14.9 | 102.6 ± 13.6 | .026 |
| Pulse pressure (PP) (mm Hg) | 41.2 ± 13.3 | 47.7 ± 14.8 | .029 |
| central SBP (mm Hg) | 106.2 ± 17.3 | 116.8 ± 18.7 | .026 |
| central DBP (mm Hg) | 77.2 ± 12.6 | 81.2 ± 10.8 | .232 |
| Cardiac output (CO) (lt/min) | 4.6 ± 0.8 | 5.1 ± 0.9 | .005 |
| Stroke volume (mL) | 65.6 ± 16.3 | 72.0 ± 14.9 | .027 |
Abbreviations: N, number of patients; SD, Standard deviation.
*
Paired Sample T Test.