✦ LIBER ✦

The effect of a heat and moisture exchanger on gas flow in a Mapleson F breathing system during inhalational induction

✍ Scribed by J. M. G. Da Fonseca; D. W. Wheeler; J. A. R. Pook

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 69 KB
Volume: 55
Category: Article
ISSN: 0003-2409
DOI: 10.1046/j.1365-2044.2000.01521.x

No coin nor oath required. For personal study only.

✦ Synopsis

Heat and moisture exchangers (HMEs) humidify, warm and filter inspired gas, protecting patients and apparatus during anaesthesia. Their incorporation into paediatric anaesthetic breathing systems is recommended. We experienced delays in inhalational induction whilst using a Mapleson F breathing system with an HME. We have demonstrated that the HME significantly alters gas flow within the breathing system. Approximately half of the fresh gas flow is delivered to the patient, the remainder being wasted into the expiratory limb of the breathing system. We suggest that the HME should be removed from the Mapleson F breathing system until inhalational induction is complete, or that the reservoir bag is completely occluded until an effective seal is obtained with the mask.

📜 SIMILAR VOLUMES

A study of the effect of a resistive hea

A study of the effect of a resistive heat moisture exchanger (trachinaze) on pulmonary function and blood gas tensions in patients who have undergone a laryngectomy: A randomized control trial of 50 patients studied over a 6-month period

✍ Andrew Simpson Jones; Pamela Elizabeth Young; Zul Bin Hanafi; Zorustra George Gr 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 134 KB 👁 1 views

## Abstract ## Background. Previous work from this department has shown that resistive tracheostomy filters increase the partial pressure of oxygen in capillary blood and also provide a significant amount of heat/moisture exchange. Until now it has not been shown whether there is any long‐term ben