0
Abstract: Poster Presentations |

OPTIMIZATION OF NON-INVASIVE VENTILATION PRESSURES USING COMBINED OXIMETRY AND CUTANEOUS CARBON DIOXIDE TENSION MONITORING FREE TO VIEW

Prashant N. Chhajed, MD*; Simone Gehrer; Trupti P. Chhajed; Ingrid Strobel; Martin Brutsche, MD; Michael Tamm, MD; Werner Strobel, MD
Author and Funding Information

Pulmonary Medicine, University Hospital Basel, Basel, Switzerland


Chest


Chest. 2005;128(4_MeetingAbstracts):382S. doi:10.1378/chest.128.4_MeetingAbstracts.382S
Text Size: A A A
Published online

Abstract

PURPOSE:  To examine the safety, feasibility and utility of combined cutaneous carbon dioxide tension (PcCO2) and oximetry monitoring to re-titrate the non-invasive positive pressure ventilation settings in patients with chronic hypercapnic respiratory failure due to hypoventilation.

METHODS:  12 patients with chronic hypercapnic respiratory failure underwent complete polysomnography and combined oximetry and PcCO2 measurement (Sentec AG, Switzerland) on the ear lobe. non-invasive positive pressure ventilation pressures were adjusted with the aim of normalizing PcCO2 or reducing it by 10 to 15 mm Hg. Sensor drift for PcCO2 measurement was calculated to reduce the discrepancy between PcCO2 and awake arterial carbon dioxide tension. Epworth sleepiness score and patient satisfaction with home ventilation was charted on a 10 centimeter visual analogue scale before and after the study.

RESULTS:  Mean baseline PcCO2 was 45.4 ± 6.5 mm Hg and drift corrected awake PcCO2 was 45.1 ± 8.3 mm Hg. IPAP pressures were changed in nine patients and EPAP in eight patients. Epworth sleepiness score before and after the study showed no change in five patients, mild improvement in six patients and mild deterioration in one patient. Seven patients had a mild increase and five patients a mild decrease in their visual analogue scale score at follow up.

CONCLUSION:  Combined continuous PcCO2 and oximetry monitoring is feasible and permits the optimization of non-invasive positive pressure ventilation settings in patients with chronic hypercapnic respiratory failure due to hypoventilation. Continuous PcCO2 monitoring might serve as an important additional tool to complement diurnal arterial carbon dioxide tension values.

CLINICAL IMPLICATIONS:  A titration study with continuous PcCO2 measurement in patients receiving non-invasive positive pressure ventilation can be helpful to optimize the ventilator settings.

DISCLOSURE:  Prashant Chhajed, None.

12:30 PM - 2:00 PM


Figures

Tables

References

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

  • CHEST Journal
    Print ISSN: 0012-3692
    Online ISSN: 1931-3543