A study to compare the effect of autogenic drainage and flutter device on PEFR, SpO2 and FEV1 in moderate to severe COPD patients
Jul 29, 2026

The study concluded that both autogenic drainage and flutter are equally effective in improving PEFR, SpO2 and FEV1 but flutter is more effective in improving FEV1 and easier for the patient to learn and less time consuming than autogenic drainage.


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