Medizinische Universität Graz - Research portal
Selected Publication:
Arikan, MG; Haas, J; Giuliani, A; Haeusler, M.
Reusable sensors in intrapartum foetal reflection pulse oximetry.
Biosens Bioelectron. 2002; 17(6-7):457-462
Doi: 10.1016/S0956-5663(01)00311-6
Web of Science
PubMed
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- Leading authors Med Uni Graz
- Arikan Murat Gürkan
- Co-authors Med Uni Graz
- Giuliani Albrecht
- Haas Josef
- Haeusler Martin
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- Abstract:
- Objectives: To evaluate the accuracy of intrapartum. foetal pulse oximetry (SO2POX) using reusable sensors and the effect of a sensor performance test on data quality. Furthermore, to assess the sensor-related costs by using reusable sensors and sensor performance test. Methods: 36 reusable sensors were used for SO2POX during labour of 289 term foetuses. A sensor performance test device assessing the emitter and receiver capability and the firmness of attachment of the sensors had been developed and used in the last 134 measurements before each resterilisation. Oxygen saturation (SaO(2)) at birth was measured spectrophotometrically after cord blood sampling. The accuracy of SO2POX was evaluated by analysing its relationship to SaO(2). The valid SO2POX data, as confirmed by subsequent sensor test in the second group, was considered comparable with those with single sensor use. Sensor-related average cost (sensors, test device and sterilisation) of such measurements was compared with that of single sensor use. Results: Eight sensors failed performance test despite valid pulse oximetry signal output during their last measurements. There were significant overall linear correlations between SO2POX and SaO(2) (r = 0.45, P < 0.0001). Separate analyses of regression in the group without sensor performance testing showed an r(2) of 0.41, whereas in the group with subsequent sensor performance testing, the r 2 was 0.52 (P < 0.05). By reusing the sensors, the sensor-related cost per valid measurement was $18.9 and 71% lower compared to single use of sensors ($65). Conclusions: Pulse oximetry may reflect fetal oxygen saturation. Data quality may be compromised by insufficient sensor performance, even though the reflection signal quality is acceptable. If sensor performance is tested before each measurement, reusable sensors may reduce the costs of fetal pulse oximetry. (C) 2002 Elsevier Science BY. All rights reserved.
- Find related publications in this database (using NLM MeSH Indexing)
- Equipment Reuse - economics Equipment Reuse - statistics and numerical data
- Female -
- Fetal Blood - chemistry
- Fetal Monitoring - instrumentation Fetal Monitoring - methods
- Humans -
- Infant, Newborn - blood
- Labor Stage, Third -
- Materials Testing - statistics and numerical data
- Oximetry - instrumentation Oximetry - methods
- Oxygen - blood
- Pregnancy -
- Regression Analysis -
- Reproducibility of Results -
- Sensitivity and Specificity -
- Find related publications in this database (Keywords)
- reusable sensors
- reflection pulse oximetry
- fetal oxygen saturation