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This study was performed to investigate delayed bronchoconstriction in 17 extrinsic asthmatic children with exercise induced asthma. Pulmonary function was monitored by PEFR and FEV1 prior to exercise and serially for ten hours after about 8 minutes up and down stairs exercise.
Delayed bronchoconstriction was noted in four of seventeen patients (23.5%) at 5∼9hours after exercise and % fall in PEFR... |
