Abstract:Objectiveto investigate the effect of dust mite antigen drops on the compliance of patients with obstructive sleep apnea hypopnea syndrom (OSAHS) with allergic rhinitis (AR)via nose continuous positive airway pressure (nCPAP).Methods66 adult outpatients (age >18 years old) with persistent AR and moderate or severe OSAHS who suffered from dust mite allergy were screened out and treated with nCPAP. All patients were given regularly antiallergic treatment with dust mite antigen for one year. It was comparing to the 95% effective pressure value of nCPAP before and after treatment, the time of nCPAP treatment every night, and hourly snoring index and sleepiness scale (ESS) during without application of ventilator.Resultsafter regular antiallergic treatment, 95% effective pressure of nCPAP was decreased from (12.76±3.68)cmH2O to (8.83±2.62)cmH2O (P<0.05) after treatment in moderate and severe OSAHS patients with dust mite antigen positive AR, and the use time per night increased from(4.58±1.69)h to (6.83±2.36)h (P<0.05). The snore index per hour without ventilator decreased from (386.67±50.68) times/h before treatment to (268.82±32.58) times/h (P<0.05), and the ESS (Epworth Sleeping Scale, ESS) score decreased from (22.36±1.28)points to (15.68±1.02)points (P<0.05).ConclusionDustmite antigen drops can reduce the effective pressure of nCPAP in moderate to severe OSAHS patients with AR, increase the time of use, improve the snoring index, reduce daytime sleepiness, and improve the compliance of patients with nCPAP.