0
Abstract: Poster Presentations |

PLETH VARIABILITY INDEX DERIVED FROM PULSE OXIMETRY MAY REFLECT THE DEGREE OF AIRWAY OBSTRUCTION IN PATIENTS WITH LUNG DISEASE FREE TO VIEW

Mary L. Zaremba, APRN-BC*; Alicia Redford; Kristin Elliott, BSN; Syed V. Ali, MBBS; Nipurn J. Shah, MBBS; Sridhar P. Reddy, MBBS
Author and Funding Information

St. Clair Pulmonary & Critical Care, Port Huron, MI


Chest


Chest. 2009;136(4_MeetingAbstracts):122S. doi:10.1378/chest.136.4_MeetingAbstracts.122S-b
Text Size: A A A
Published online

Abstract

PURPOSE:  Patients with severe airway obstruction may exhibit pulsus paradoxus like physiology. The present study was performed as a pilot to see if Pleth Variability Index (PVI) may be used to quickly and noninvasively detect the degree of obstruction in patients with lung disease.

METHODS:  During evaluation of patients with lung disease in a small pulmonary practice pulse oximetry was performed using a Radical 7 pulse co-oximeter capable of deriving a PVI by analyzing the oximetry wave form. Spirometry was performed during the same visit. The FEV1 to FVC ratio was used to divide the patient visits into 2 groups with differing degrees of obstruction and the PVI was compared between the two groups using student t test.

RESULTS:  PVI in the more obstructed group (n = 54) (mean FEV1 to FVC ratio of 0.44) was higher at 29.7 +/− 1.65 compared to the less obstructed group (n = 55) at 25.2 +/− 1.61 (mean FEV1 to FVC ratio of 0.72) and was statistically significant(p value 0.0259).

CONCLUSION:  PVI may reflect degree of airway obstruction in patients with lung disease. Further studies may be needed to evaluate the place of PVI in routine clinical use.

CLINICAL IMPLICATIONS:  Pulse oximetry with PVI may be a useful way to screen patients for airway obstruction where spirometry is unavailable or patients are unable to perform adequate spirometric maneuvers. In acute care settings PVI may be a quick and useful adjunct in evaluating the patient with obstructive lung disease.

DISCLOSURE:  Mary Zaremba, Other Radical-7 Pulse Co-oximeter was used in this study and was loaned to us by Masimo Corporation.; No Product/Research Disclosure Information

Wednesday, November 4, 2009

12:45 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 Articles
Patterns of Lung Disease in a “Normal” Smoking Population*: Are Emphysema and Airflow Obstruction Found Together?
PubMed Articles
Guidelines
Infant/toddler pulmonary function tests-2008 revision & update.
American Association for Respiratory Care | 4/3/2009
Removal of the endotracheal tube—2007 revision & update.
American Association for Respiratory Care | 8/17/2007
  • CHEST Journal
    Print ISSN: 0012-3692
    Online ISSN: 1931-3543