title: Hygroscopic condenser humidifier as a solution to nasal dryness due to nasal CPAP treatment for obstructive sleep apnea syndrome.
abstract: We report an apparent solution to nasal dryness for patients with obstructive sleep apnea syndrome treated with nasal continuous positive airway pressure (CPAP) when a hygroscopic condenser humidifier is introduced into the CPAP circuit. Six patients underwent a 5-h test period of nasal CPAP therapy with a mask containing a hygroscopic humidifier. The water vapor showed a statistically significant increase in both inspired and expired gases. The relative humidity of the inspired gases increased significantly. The levels of O2 and CO2 in the respired gases did not change. When patients were asked about nasal dryness at the end of the test, all of them reported marked improvement.
authors.affiliation: Service of Pneumology, Hospital de Badalona Germans Trias i Pujol, Barcelona, Spain.
authors.forename: O
authors.initials: O
authors.lastname: Parra
authors.forename: J
authors.initials: J
authors.lastname: Klamburg
authors.forename: J
authors.initials: J
authors.lastname: Xirgu
authors.forename: J
authors.initials: J
authors.lastname: Abad
authors.forename: H
authors.initials: H
authors.lastname: Sala
authors.forename: A
authors.initials: A
authors.lastname: Tomasa
authors.forename: J
authors.initials: J
authors.lastname: Morera
mesh_terms: D000389:Air Conditioning; D006801:Humans; D006813:Humidity; D008875:Middle Aged; D012138:Respiratory Therapy / Q000295:instrumentation*; D012891:Sleep Apnea Syndromes / Q000628:therapy*