+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Neonatal hygroscopic condenser humidifier

Neonatal hygroscopic condenser humidifier

Critical Care Medicine 15(1): 51-54

A hygroscopic condenser humidifier was developed for neonates on mechanical ventilation and was evaluated by laboratory tests and clinically. Humidification provided by the unit was measured in the 10- to 50-ml tidal-volume range at ambient temperatures of 24 degrees C and 38 degrees C. The effect of a leaking patient connection on device performance was investigated. Leakage rates were measured routinely in a neonatal ICU and surgery to determine the clinical significance. In the entire tidal volume and temperature range, the unit provided an inspiratory water content in excess of 30 g/m3 when the leak fraction (volume leaked/volume delivered at Y-piece) was less than 15%. This was found in three out of four cases. In about one out of ten cases, the leak exceeded 30%, which invariably led to corrective action, such as repositioning or changing the endotracheal tube. However, even at a 30% leak, a water content of about 26 g/m3 was still available for humidifying the inspired gas, which corresponds to normal physiologic conditions found in the trachea for nasal breathing of room air.

Please choose payment method:

(PDF emailed within 1 workday: $29.90)

Accession: 040780970

Download citation: RISBibTeXText

PMID: 3792015

Related references

Controlled trial of the neonatal hygroscopic condenser humidifier-artificial nose. Pediatric Research 33(4 Part 2): 325A, 1993

Comparison of a hygroscopic condenser humidifier with a cascade humidifier in mechanically ventilated patients. Anesthesiology 69(3A): A167, 1988

A new hygroscopic condenser humidifier. Intensive Care Medicine 8(5): 231-234, 1982

Efficacy of a new hygroscopic condenser humidifier. Critical Care Medicine 10(1): 49-51, 1982

Conditioning of inspired air by a hygroscopic condenser humidifier. Critical Care Medicine 12(8): 675-678, 1984

Hygroscopic condenser humidifier in high frequency jet ventilation. Intensivbehandlung 11(1): 40-43, 1986

Bacteriologic evaluation of the Servo 150 hygroscopic condenser-humidifier. Critical Care Medicine 14(10): 914, 1986

Do hygroscopic condenser humidifier cause mechanical disadvantages in chronically tracheostomized patients?. European Respiratory Journal 8(Suppl. 19): 293S, 1995

The Hygroscopic Condenser Humidifier. A new device for general use in anaesthesia and intensive care. Anaesthesia 34(10): 1043-1047, 1979

Effective airway humidification in intubated patients by use of a hygroscopic condenser humidifier. American Review of Respiratory Disease 129(4 Suppl.): A110, 1984

Pulmonary function in mechanically ventilated patients during 24 hour use of a hygroscopic condenser humidifier. Chest 84(5): 560-564, 1983

Laboratory investigation of the hch hygroscopic condenser humidifier edith as an antimicrobial filter against pseudomonas aeruginosa. Acta Anaesthesiologica Italica 36(2): 263-266, 1985

Altered ventilatory mechanics resulting from interaction of hygroscopic condenser humidifier hgc and closed circuit suction system ccss. American Review of Respiratory Disease 145(4 Part 2): A529, 1992

A randomized clinical trial comparing an extended-use hygroscopic condenser humidifier with heat-water humidification in mechanically ventilated patients. Chest 113(3): 759-767, 1998

Hygroscopic condenser humidifier as a solution to nasal dryness due to nasal CPAP treatment for obstructive sleep apnea syndrome. Sleep 14(2): 166-168, 1991