Table 3 Effects of respiratory maneuvers on airway blood flow (Q̇ aw )
From: Effect of airway acidosis and alkalosis on airway vascular smooth muscle responsiveness to albuterol
Pre-maneuver Q̇aw | Q̇awduring steady state | Q̇aw15 min post albuterol | ||
|---|---|---|---|---|
Quiet breathing | Mean ± SE | 38.1 ± 1.4 | 37.2 ± 1.5 | 53.7 ± 2.1* |
Median | 37.7 | 35.7 | 54.3 | |
25% quartile | 33.8 | 34.1 | 46.9 | |
75%quartile | 42.1 | 41.9 | 58.7 | |
Eucapnic hyperventilation | Mean ± SE | 41.8 ± 4.3 | 42.6 ± 4.3 | 56.4 ± 4.0* |
Median | 40.7 | 42.7 | 49.7 | |
25% quartile | 34.8 | 34.8 | 46.7 | |
75% quartile | 48.8 | 48.8 | 61.7 | |
Hypocapnic hyperventilation | Mean ± SE | 42.9 ± 2.8 | 45.2 ± 3.4 | 45.1 ± 2.9 |
Median | 40.1 | 42.2 | 43.7 | |
25% quartile | 37.2 | 35.0 | 38.8 | |
75% quartile | 49.1 | 49.7 | 54.1 | |
Hypercapnic hyperventilation | Mean ± SE | 42.1 ± 2.4 | 44.8 ± 3.8 | 46.7 ± 4.0 |
Median | 37.5 | 44.7 | 43.7 | |
25% quartile | 35.5 | 34.1 | 38.4 | |
75% quartile | 46.2 | 57.1 | 52.2 |