Table 3.
Baseline characteristics of PE patients with RV strain who received CDT versus medical therapy, after propensity matching
| CDT (N = 76) | Conservative treatment (N = 303) | SMD | |
|---|---|---|---|
| Age (mean, sd) | 57 (16) | 57 (17) | 0.011 |
| Hours hospitalized prior to PE diagnosis | 40 (59) | 41 (66) | 0.011 |
| On ventilator (before PE diagnosis) | 10 (14%) | 11 (15%) | 0.026 |
| Location at PE diagnosis | |||
| ICU | 36 (49%) | 36 (49%) | 0.004 |
| ED | 20 (27%) | 21 (28%) | 0.018 |
| Systolic blood pressure (lowest) | 100 (21) | 99 (19) | 0.017 |
| Diastolic blood pressure (lowest) | 61 (18) | 60 (15) | 0.027 |
| Heart rate (highest) | 114 (19) | 114 (23) | 0.034 |
| Respirations (highest) | 28 (6) | 28 (8) | 0.033 |
| Oxygen flow (L/min) (highest) | 6 (10) | 6 (10) | < 0.001 |
| Oxygen saturation (lowest) | 89 (8) | 88 (13) | 0.066 |
| Temperature (highest) | 98.2 (1.5) | 98.2 (1.3) | 0.009 |
Parentheses indicate standard deviation, or % of patients where indicated. SMD is the standardized mean difference, and is provided instead of a p value given propensity score matching was performed. An SMD of > 0.1 is considered an important difference between two groups, and all variables in this study have an SMD of < 0.1
CDT catheter-directed therapy, PE pulmonary embolism, SMD standardized mean difference