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Adverse reactions in the ipratropium bromide group and combined intervention group.
| Group | Cases (n) | Spontaneous pneumothorax | Chronic respiratory failure | Chronic pulmonary heart disease | Sleep apnea | Total incidence |
|---|---|---|---|---|---|---|
| Control | 20 | 2 | 2 | 1 | 1 | 6f |
| Ipratropium bromide | 24 | 1 | 2 | 1 | 0 | 4 |
| Combined intervention | 24 | 1 | 1 | 1 | 0 | 3a |
BT, before treatment; AT, after treatment; compared with the control group, aP < 0.05, compared with the ipratropium bromide group, fP < 0.01.
