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Abstract: Poster Presentations |

THE NONINVASIVE USE OF PULSE OXIMETRY-DERIVED PLETH VARIABILITY INDEX TO MONITOR ADEQUATE EXERCISE IN A PULMONARY REHABILITATION PROGRAM FREE TO VIEW

Alicia Redford; Mary L. Zaremba, APRN-BC; Kristin Elliott, BSN; Syed V. Ali, MBBS; Nipurn J. Shah, MBBS; Sridhar P. Reddy, MBBS
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St. Clair Pulmonary & Critical Care, Port Huron, MI


Chest


Chest. 2009;136(4_MeetingAbstracts):125S. doi:10.1378/chest.136.4_MeetingAbstracts.125S-a
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Abstract

PURPOSE:  During pulmonary rehabilitation, adequate intensity of exercise is needed. Different parameters may be used to determine if the patient is adequately challenged. We describe the use of a novel parameter pleth variability index (PVI) derived from the pulse oximetry wave form in patients with chronic lung disease undergoing pulmonary rehabilitation.

METHODS:  In patients undergoing pulmonary rehabilitation exercise, programs were individualized by having a one on one monitoring by a respiratory therapist. During this time, patients were routinely also monitored by pulse co-oximetry using a Radical-7 pulse co-oximeter capable of analyzing the photoplethysmographic wave form to derive a pleth variability index. PVI, before and after, along with heart rate (HR) and perfusion index (PI), were measured and data was analyzed with paired t-test.

RESULTS:  PVI was significantly higher after adequate exercise than before and was similar to increase in HR. PVI before was 27.33 and after was 32.04 with p = 0.006. HR before was 77.37 and after was 85.67 with p = 6.42 E-10. PI was not significantly different. PI before was 2.18 and after was 2.32 with p = 0.23.

CONCLUSION:  In patients with obstructive lung disease, PVI may be a useful parameter to determine adequacy of exercise in a pulmonary rehabilitation program. This may be useful in setting goals for appropriate level of exercise in these programs.

CLINICAL IMPLICATIONS:  Further testing including correlation with metabolic parameters should be done in the future.

DISCLOSURE:  Alicia Redford, 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


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