Preterm CHD group: comparison of perioperative variables between pWML versus non-pWML groups
| Surgical Variables | CHD Preterm Group with pWML | CHD Preterm without pWML | P Value* | ||
|---|---|---|---|---|---|
| Mean (SD) | n | Mean (SD) | n | ||
| Birth weight | 1963.5 (591.6) | 8 | 1676.2 (566.6) | 11 | .341 |
| Age at 1st surgery, days | 3.5 (2.8) | 8 | 12.0 (12.7) | 12 | .05 |
| PCA at 1st surgery, weeks | 37 (1.7) | 8 | 43.1 (10.9) | 12 | .20 |
| 1st ABG pH | 7.24 (0.08) | 5 | 7.29 (1.10) | 5 | .36 |
| 1st ABG pO2 | 81.75 (74.82) | 4 | 39 (−) | 1 | .64 |
| Pre-op ABG pH | 7.33 (0.1) | 8 | 7.36 (0.05) | 12 | .41 |
| Pre-op ABG pO2 | 62.2 (21.2) | 8 | 69.75 (34.6) | 8 | .67 |
| Post-op ABG pH | 7.30 (0.07) | 8 | 7.32 (0.05) | 12 | .38 |
| Post-op ABG pO2 | 67.83 (48.3) | 8 | 101 (83.52) | 12 | .37 |
| Pre-op epi, no. of days | 0 (0) | 8 | 0.08 (0.3) | 12 | .49 |
| Pre-op dobutamine, no. of days | 0 (0) | 8 | 0.08 (0.3) | 12 | .49 |
| Pre-op dopamine, no. of days | 1.167 (0.41) | 8 | 0.417 (1.2) | 12 | .62 |
| Pre-op hydrocortisone, no. of days | 0.167 (0.41) | 8 | 0.08 (0.3) | 12 | .61 |
| Pre-op milirinone, no. of days | 0 (0) | 8 | 0.08 (0.3) | 12 | .49 |
| Post-op epi, no. of days | 1.67 (2.7) | 8 | 1.5 (3) | 12 | .90 |
| Post-op dobutamine, no. of days | 0 (0) | 8 | 0.25 (0.5) | 12 | .20 |
| Post-op dopamine, no. of days | 4.17 (4.4) | 8 | 3.17 (4.3) | 12 | .64 |
| Post-op hydrocortisone, no. of days | 0.33 (0.5) | 8 | 1.67 (5.5) | 12 | .50 |
| Post-op milirinone, no. of days | 3.33 (4.13) | 8 | 3.5 (4.0) | 12 | .93 |
| Post-op nitroprusside, no. of days | 0.0 (0) | 8 | 0.33 (0.9) | 12 | .37 |
Note:—PCA indicates postconceptional age; ABG, arterial blood gas; epi, epinephrine; Pre-op, preoperative; Post-op, postoperative.