+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Evaluation of a new combined SpO2/PtcCO2 sensor in anaesthetized paediatric patients

Evaluation of a new combined SpO2/PtcCO2 sensor in anaesthetized paediatric patients

Paediatric Anaesthesia 13(9): 777-784

The recently introduced TOSCA monitor (Linde Medical Sensors AG, Basel, Switzerland) combines pulse oximetry (SpO2) and transcutaneous PCO2 (PtcCO2) monitoring in a single ear sensor. The aim of the present study was to evaluate accuracy of the TOSCA monitor to estimate SaO2 and PaCO2 in anaesthetized children. With approval of the hospital ethical committee and after obtaining informed parental consent, the TOSCA sensor was attached to one ear lobe of anaesthetized children in whom arterial access was established for cardiac catheterization or invasive blood pressure monitoring. SpO and PtcCO2 as well as SpO and PECO2 values from the anaesthesia monitoring (AS5; Datex-Ohmeda, Helsinki, Finland) were compared with SaO2 and PaCO2 values from arterial blood gas analysis. Corresponding data were compared using Bland Altman bias analysis. A total of 111 blood samples were taken from 60 children (median age: 4.41 years; 0.35-16.13 years). SaO2 values ranged from 63 to 100% (median: 98.7%), PaCO2 ranged from 3.8 to 7.3 kPa (median: 4.6 kPa). Mean difference (+/-2 sd) between PaCO2 and PtcCO2 was -0.035 kPa (+/-0.74 kPa), between PaCO2 and PECO2 0.002 kPa (0.73 kPa), respectively (1 kPa = 7.3 mmHg). Bias and precision between SaO2 and SpO was -0.63% (+/-2.77%) and 0.13% (+/-4.52%) between SaO2 and SpO. In anaesthetized children, the TOSCA ear sensor allows estimation of SaO2 and PaCO2, comparable in accuracy to endtidal capnometry and finger pulse oximetry. This makes the TOSCA monitor a helpful add-on to respiratory monitoring in anaesthetized children, in situations, in which endtidal capnometry is unreliable or difficult to establish.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 048993632

Download citation: RISBibTeXText

PMID: 14617118

DOI: 10.1046/j.1460-9592.2003.01146.x

Related references

An evaluation of a new combined Spo2/PtcCO2 sensor in very low birth weight infants. Anesthesia and Analgesia 107(1): 125-129, 2008

Use of a combined SpO₂/PtcCO₂ sensor in the delivery room. Sensors 12(8): 10980-9, 2012

Observational study of perioperative PtcCO2 and SpO2 in non-ventilated patients receiving epidural infusion or patient-controlled analgesia using a single earlobe monitor (TOSCA). British Journal of Anaesthesia 99(4): 567-571, 2007

Longtime performance and reliability of two different PtcCO2 and SpO2 sensors in neonates. Paediatric Anaesthesia 18(9): 872-877, 2008

Changes in SpO2 during total intravenous anesthesia combined with propofol and SpO2 during one-lung anesthesia ventilation. Masui. Japanese Journal of Anesthesiology 48(1): 53-56, 1999

Clinical validation of a digital transcutaneous PCO2/SpO2 ear sensor in adult patients after cardiac surgery. Journal of Clinical Monitoring and Computing 21(5): 303-309, 2007

The revised digital transcutaneous PCO2/SpO2 ear sensor is a reliable noninvasive monitoring tool in patients after cardiac surgery. Journal of Cardiothoracic and Vascular Anesthesia 25(2): 243-249, 2011

Performance of a digital PCO2/SPO2 ear sensor. Journal of Clinical Monitoring and Computing 18(2): 75-79, 2004

Paediatric Airtraq for adult nasal intubation in anaesthetized patients. British Journal of Anaesthesia 104(4): 506-7; Author Reply 507, 2010

SpO2 sensor embedded in a finger ring: design and implementation. Conference Proceedings 1: 4295-4298, 2006

Evaluation of a new combined transcutaneous measurement of PCO2/pulse oximetry oxygen saturation ear sensor in newborn patients. Pediatrics 115(1): E64-E68, 2005

Forehead SpO2 monitoring compared to finger SpO2 recording in emergency transport. Anaesthesia 59(4): 390-393, 2004

A wireless sensor network compatible wearable u-healthcare monitoring system using integrated ECG, accelerometer and SpO2. Conference Proceedings 2008: 1529-1532, 2008

Application of capnography and SpO2 measurement in the evaluation of respiratory failure in patients with chronic obstructive pulmonary disease. Nan Fang Yi Ke Da Xue Xue Bao 30(7): 1565-1568, 2010

Investigation of photoplethysmographic signals and blood oxygen saturation values on healthy volunteers during cuff-induced hypoperfusion using a multimode PPG/SpO₂ sensor. Medical & Biological Engineering & Computing 50(6): 575-583, 2012