Table 2 Results of the spirometry outcomes for the anterior and posterior puncture approach comparing baseline (T0) and 30 min after the interscalene block (T30)
Anterior puncture approach | Posterior puncture approach | ||||||
|---|---|---|---|---|---|---|---|
Spirometry variable | Time | Median (Q1, Q3) | Median differenceT0-T30 (95 % CI) | p-value (two-sided) | Median (Q1, Q3) | Median difference T0-T30 (95 % CI) | p-value (two-sided) |
VC [l] | T0 | 5.09 (3.98, 5.58) | 0.95 (0.79, 1.11) | <0.001 | 4.46 (3.90, 5.37) | 0.96 (0.81, 1.14) | <0.001 |
T30 | 3.98 (3.31, 4.67) | 3.46 (2.90, 4.34) | |||||
FEV1 [l/s] | T0 | 3.8 (3.34, 4.33) | 0.75 (0.63, 0.87) | <0.001 | 3.57 (3.01, 4.11) | 0.83 (0.70, 0.99) | <0.001 |
T30 | 3.05 (2.41, 3.44) | 2.58 (2.05, 3.22) | |||||
Sniff PmaxPeak [kPa] | T0 | 6.24 (4.84, 7.67) | 1.10 (0.71, 1.56) | <0.001 | 6.25 (5.09, 8.63) | 1.07 (0.46, 1.74) | <0.001 |
T30 | 5.13 (4.21, 7.22) | 5.70 (4.54, 6.83) | |||||