Conditions: Pulmonary Disease, Chronic Obstructive
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 192
Healthy volunteers: no

Brief summary:
This is a randomized, double-blind, placebo-controlled, parallel-group, multi-centre trial.The trial aims to evaluate efficacy of nebulized ipratropium bromide in Chinese peri-operative patients with COPD under general anaesthesia.

Detailed description:

Arms:
arm 1: 500 mcg four times a day arm 2: None

Interventions: intervention 1: placebo intervention 2: ipratropium bromide
Intervention descriptions: intervention 1: normal saline intervention 2: ipratropium bromide

Protocol document: