[Self-monitoring of airway obstruction using the peak flowmeter]

Daily peak flow measurements provide an accurate and objective assessment of airway obstruction. The peak flow profile offers a rational basis for antiobstructive treatment. Success and failure of treatment are visualized, as are the asymptomatic beginning of an asthmatic attack, an allergen exposure or an exercise-induced obstruction. Compliance improves, and self-monitoring seems to increase patient comfort. A considerable amount of knowledge about the dynamics of airway obstruction is conveyed to the physician, and this works very much to the benefit of his patient.