Table 3.
Fetal and maternal outcomes of participants receiving either SLMA or ETT while undergoing cesarean section under general anesthesia
| Characteristics | SLMA (n = 460) |
ETT (n = 460) |
Mean Difference / Odds ratio (95%CI) |
p-value |
|---|---|---|---|---|
| Fetal weight (g), mean (SD) | 3150.7 (457.9) | 3137.8 (417.0) | 12.83 (−43.84, 69.49) | 0.6570 |
| APGAR score 1 min, median (IQR) | 10.0 (9.0, 10.0) | 10.0 (9.0, 10.0) | 0.00 (0.00, 0.00) | 0.9517 |
| APGAR score 5 min, median (IQR) | 10.0 (10.0, 10.0) | 10.0 (10.0, 10.0) | 0.00 (0.00, 0.00) | 0.7208 |
| Umbilical venous cord pH, median (IQR) | 7.3 (7.3, 7.3) | 7.3 (7.3, 7.3) | 0.00 (0.00, 0.001) | 0.2298 |
| Presence of blood on airway device, n (%) | 28 (6.1) | 36 (7.8) | 0.76 (0.46, 1.27) | 0.2999 |
| Incidence of sore throat, n (%) | 9 (2.0) | 15 (3.3) | 0.59 (0.26, 1.37) | 0.2146 |
| Incidence of voice hoarseness, n (%) | 0 (0.0) | 0 (0.0) | – | NA |
| Patient satisfaction (%), mean (SD) | 85.4 (7.6) | 84.5 (7.9) | 0.86 (−0.14, 1.86) | 0.0931 |
| Volume of gastric aspirate (ml), mean (SD) | 17.3 (13.4) | 17.6 (16.3) | −0.28 (−2.21, 1.65) | 0.7756 |
| pH of gastric aspirate, mean (SD) | 3.5 (1.4) | 3.7 (1.6) | −0.06 (− 0.11, − 0.02) | 0.0309 |
| pH of SLMA laryngeal surface / ETT cuff, mean (SD) | 7.0 (0.2) | 7.0 (0.2) | −0.001 (− 0.004, 0.002) | 0.5613 |
Difference between the two categories are expressed as mean difference or median difference and odds ratio with 95% confidence interval for continuous and categorical values, respectively. Categorical values are compared using Chi-Square test and continuous variables are compared using two-sample Student’s t-test or Wilcoxon test. P-values of 0.05 or less are considered significant