Table 4.
Intraoperative secretions*
| Characteristics | G ISIS N = 17 | G Evac N = 17 | P value |
|---|---|---|---|
| Total secretion volume (mL) |
26 ± 19 |
13 ± 10 |
0.055 |
| Total secretion weight (g) |
20 ± 15 |
10 ± 9 |
0.075 |
| Average secretion volume per sample collected every 20 min (mL) |
9 ± 4 |
7 ± 3 |
0.232 |
| Average secretion weight per sample (g) |
7 ± 4 |
5 ± 4 |
0.410 |
| Average secretion pH |
7.3 ± 0.4 |
7.4 ± 0.6 |
0.712 |
| Gram stain any organism |
13 |
13 |
NS |
| positive |
5 |
2 |
0.448 |
| negative |
0 |
0 |
|
| indeterminate |
0 |
0 |
|
| positive and negative |
7 |
8 |
|
| positive and indeterminate |
0 |
1 |
|
| negative and indeterminate |
0 |
0 |
|
| all types | 1 | 2 |
*Abbreviations: GISIS – Teleflex ISIS HVT tube; GEvac – Mallinckrodt TaperGuard Evac tube; GStand –Mallinckrodt Intermediate Hi-Lo tube ETT without suction; ETT – endotracheal tube.