The Revised Digital Transcutaneous PCO2/SpO2 Ear Sensor Is a Reliable Noninvasive Monitoring Tool in Patients After Cardiac Surgery

Roediger, Regine; Beck‐Schimmer, Beatrice; Theusinger, Oliver M.; Rusch, Denise; Seifert, Burkhardt; Spahn, Donat R.; Schmid, Edith R.; Baulig, Werner

doi:10.1053/j.jvca.2010.06.021

Cited by 25 publications

(19 citation statements)

References 27 publications

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“…The transcutaneous SenTec monitor has been validated and used as a surrogate measure of PaCO 2 , allowing continuous monitoring and the avoidance of multiple arterial blood gas punctures . The RIP measures were not valid for most interventions and so it was not possible to directly measure the effect of NHF on minute ventilation or tidal volume.…”

Section: Discussionmentioning

confidence: 99%

Nasal high flow therapy and PtCO₂ in stable COPD: A randomized controlled cross‐over trial

et al. 2017

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Background and objective: Hypercapnia is associated with worse clinical outcomes in exacerbations of COPD. The present study aimed to determine the effects of nasal high flow (NHF) therapy on transcutaneous partial pressure of carbon dioxide (PtCO 2 ) in stable COPD patients. Methods: In a single-blind randomized controlled crossover trial, 48 participants with COPD were allocated in random order to all of four 20 min interventions: NHF at 15 L/min, 30 L/min and 45 L/min or breathing room air with each intervention followed by a washout period of 15 min. The primary outcome measure was PtCO 2 at 20 min, adjusted for baseline PtCO 2 . Secondary outcomes included respiratory rate at 20 min, adjusted for baseline. Results: The mean (95% CI) change in PtCO 2 at 20 min was −0.6 mm Hg (−1.1 to 0.0), P = 0.06; −1.3 mm Hg (−1.9 to 0.8), P < 0.001; and −2.4 mm Hg (−2.9 to −1.8), P < 0.001; for NHF at 15 L/min, 30 L/min and 45 L/min compared with room air, respectively. The mean (95% CI) change in respiratory rate at 20 min was −1.5 (−2.7 to −0.3), P = 0.02; −4.1 (−5.3 to −2.9), P < 0.001; and −4.3 (−5.5 to −3.1), P < 0.001; breaths per minute compared with room air, respectively. Conclusion: NHF results in a small flow-dependent reduction in PtCO 2 and respiratory rate in patients with stable COPD.

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Section: Discussionmentioning

confidence: 99%

Nasal high flow therapy and PtCO₂ in stable COPD: A randomized controlled cross‐over trial

et al. 2017

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“…14, 20 We measured P tcCO 2 at the earlobe, and we cannot exclude regional hypoperfusion, although the earlobe site was found to provide better accuracy. 13 Conclusions P tcCO 2 measured at the earlobe with the SenTec monitor was not superior to P ETCO 2 in subjects who were suffering Values are expressed as mean Ϯ SD unless indicated otherwise. * Number of pair data.…”

Section: Discussionmentioning

confidence: 90%

“…Using a new available sensor, they found a bias of 1.1 mm Hg and limits of agreement that ranged from Ϫ3.4 to 5.5 mm Hg, with a predefined limit of Ϯ 5 mm Hg. 13 In a study that evaluated the Tosca 500 monitor including 55 subjects, of whom 10 were multiple traumatic and neurosurgical subjects, the bias was 1.2 mm Hg, and the limits of agreement ranged from Ϫ10.5 to 13.0 mm Hg. 14 Nevertheless, in the subgroup of subjects with brain injury, the authors concluded that P tcCO 2 should be used with caution.…”

Section: Discussionmentioning

confidence: 99%

“…Earlobe measurement was chosen because it appeared more accurate than forehead or cheek measurement. 13 The quality of the signal was estimated by the pulsatility index provided by the SenTec monitor (normal range: 1-2). As a warm-up period (Ϸ30 min) is necessary for the electrode to reach its optimal working conditions, all of the measurements were performed after this period.…”

Section: Carbon Dioxide Measurementmentioning

confidence: 99%

“…However, studies of this technology in intensive care units have produced conflicting results, with accuracy varying between studies according to the type of subjects who were evaluated. [10][11][12][13][14] In studies that have compared both P tcCO 2 and P ETCO 2 to blood gas-measured P aCO 2 , the former technology does appear to be more accurate. 15,16 In this study, we hypothesized that P tcCO 2 would be more accurate than P ETCO 2 in predicting P aCO 2 in patients with brain injury.…”

Section: Introductionmentioning

confidence: 99%

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The Accuracy of Transcutaneous P_CO₂in Subjects With Severe Brain Injury: A Comparison With End-Tidal P_CO₂

Rosier¹,

Launey²,

Bleichner³

et al. 2013

Respir Care

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BACKGROUND: In patients suffering from brain injury, end-tidal P CO 2 (P ETCO 2 ) monitoring is controversial, but transcutaneous P CO 2 (P tcCO 2 ), which is noninvasive and utilizes immediate display, may be an alternative method. We hypothesized that P tcCO 2 would be more accurate than P ETCO 2 for monitoring P aCO 2 in patients with severe brain injury. METHODS: A prospective observational study included consecutive mechanically ventilated adult subjects who had acute brain injury and an arterial catheter in place. When an arterial blood gas analysis was required, the P ETCO 2 and P tcCO 2 values were simultaneously recorded. The agreement between the P ETCO 2 , P tcCO 2 , and P aCO 2 measurements (reference) was determined using the Bland-Altman method. The number of outliers defined by the formula ([P ETCO 2 or P tcCO 2 ] ؊ P aCO 2 ) > ؎ 4 mm Hg indicated the proportion of measurements that were considered clinically unacceptable. RESULTS: A total of 25 subjects were included in the study, and 85 simultaneous measurements of P aCO 2 , P tcCO 2 , and P ETCO 2 were obtained. The bias and precision between P aCO 2 and P tcCO 2 were ؊0.75 and 6.23 mm Hg, respectively. The limits of agreement ranged from ؊12.97 to 11.47 mm Hg. The bias and precision between P aCO 2 and P ETCO 2 were 0.68 and 5.82 mm Hg, respectively. The limits of agreement ranged from ؊10.72 to 12.08 mm Hg. There were 34 (40%) outliers for the P tcCO 2 sensor and 34 (40%) outliers for the P ETCO 2 sensor (P > .99). CONCLUSIONS: The accuracy of P tcCO 2 was not superior to that of P ETCO 2 for assessing P CO 2 levels and should not be used to monitor these levels in subjects with severe brain injury.

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Transcutaneous carbon dioxide monitoring to avoid hypercapnia during complex catheter ablations: a feasibility study

Cantillon

Keene

Hakim

et al. 2015

J Interv Card Electrophysiol

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The Revised Digital Transcutaneous PCO2/SpO2 Ear Sensor Is a Reliable Noninvasive Monitoring Tool in Patients After Cardiac Surgery

Cited by 25 publications

References 27 publications

Nasal high flow therapy and PtCO₂ in stable COPD: A randomized controlled cross‐over trial

Nasal high flow therapy and PtCO₂ in stable COPD: A randomized controlled cross‐over trial

The Accuracy of Transcutaneous P_CO₂in Subjects With Severe Brain Injury: A Comparison With End-Tidal P_CO₂

Transcutaneous carbon dioxide monitoring to avoid hypercapnia during complex catheter ablations: a feasibility study

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The Revised Digital Transcutaneous PCO2/SpO2 Ear Sensor Is a Reliable Noninvasive Monitoring Tool in Patients After Cardiac Surgery

Cited by 25 publications

References 27 publications

Nasal high flow therapy and PtCO2 in stable COPD: A randomized controlled cross‐over trial

Nasal high flow therapy and PtCO2 in stable COPD: A randomized controlled cross‐over trial

The Accuracy of Transcutaneous PCO2in Subjects With Severe Brain Injury: A Comparison With End-Tidal PCO2

Transcutaneous carbon dioxide monitoring to avoid hypercapnia during complex catheter ablations: a feasibility study

Contact Info

Product

Resources

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Nasal high flow therapy and PtCO₂ in stable COPD: A randomized controlled cross‐over trial

Nasal high flow therapy and PtCO₂ in stable COPD: A randomized controlled cross‐over trial

The Accuracy of Transcutaneous P_CO₂in Subjects With Severe Brain Injury: A Comparison With End-Tidal P_CO₂