The efficiency of CO2 elimination during high-frequency jet ventilation for laryngeal microsurgery

Anesthesia and Analgesia
P BiroR G Rohling

Abstract

For adequate and safe use of high-frequency jet ventilation (HFJV), reliable monitoring of the PCO2 status and course is necessary. Because of improved handling and performance, recently available transcutaneous PCO2 monitoring devices such as MicroGas 7650 (Kontron Instruments Medical Sensors, Basel, Switzerland) should enable more effective surveillance of CO2 elimination and, subsequently, better control of subglottic HFJV. Adult patients (n = 164) undergoing laryngeal microsurgery during total i.v. anesthesia were assessed. The resulting transcutaneous PCO2 values, as well as the necessary driving pressure settings, were analyzed to define the CO2 elimination capacity of each patient. Therefore, an individual CO2 elimination coefficient (ECCO2) was calculated. The frequency distribution of the obtained ECCO2 values showed a normal distribution with a median at 0.79 and a range between 0.30 and 2.17. A significant difference in the frequency of obstructive lung disease was found between two patient subpopulations separated by the 25th percentile at an ECCO2 value of 0.63. Other co-factors of CO2 elimination during HFJV were age, gender, and body weight, whereas height and ventilation duration were not involved. We conclude t...Continue Reading

References

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Citations

Jun 28, 2011·Journal of Vascular and Interventional Radiology : JVIR·Susanne AbderhaldenThomas Pfammatter
Sep 14, 2010·Annales Françaises D'anesthèsie Et De Rèanimation·J-L BourgainUNKNOWN membres du conseil du club en anesthésie en ORL
Sep 21, 2010·Anesthesiology Clinics·Peter Biro
Feb 10, 2007·Journal of Cardiothoracic and Vascular Anesthesia·Erik KoomenRiet J W Smets

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