Table 1.
Obstetric and fetal characteristics in fetuses that survived compared to those who died.
| Survivors n = 7 |
Non-Survivors n = 8 |
p-Value | |
|---|---|---|---|
| Obstetric Factors | |||
| GA at FETO, weeks median (q1–q3) | 29.3 (28–29.9) | 28.0 (27.7–29.2) | 0.2699 |
| Duration of TO *, days median (q1–q3) | 42 (37–44) | 37 (35–42.5) | 0.4154 |
| GA at delivery, weeks median (q1–q3) | 38.3 (36.6–39) | 33.3 (32.5–36.5) | 0.0127 |
| Fetal Factors | |||
| Birth weight, g median (q1–q3) | 3015 (2500–3440) | 2160 (1740–2480) | 0.0205 |
| Female gender, n (%) | 4 (57.1) | 5 (62.5) | 0.8327 |
| Side of the defect | |||
| Left | 4 (57.1) | 6 (75.0) | 0.4126 * |
| Right | 3 (42.8) | 1 (12.5) | |
| Bilateral | 0 (0) | 1 (12.5) | |
| O/E LHR pre-FETO, % median (q1–q3) | 33 (22.6–40.4) | 25.3 (21.2–28) | 0.1476 |
| O/E LHR pre-removal, % median (q1–q3) | 67 (59.3–76) | 39.3 (37–50.8) | 0.0015 |
| Difference between pre-balloon removal and pre-FETO O/E LHR, % median (q1–q3) | 35.8 (26.4–44.4) | 16.2 (13.8–24.4) | 0.0177 |
Quantitative data are presented as median (q1–q3), categorical variables are presented as frequencies and percentages. Q1 = first quartile; Q3 = third quartile; TO = tracheal occlusion; FETO = Fetoscopic Endoluminal Tracheal Occlusion; PROM = Premature Rupture of Membranes; O/E LHR = Observed/Expected Lung-to-Head Ratio. * Fisher exact test.