A comparison of transcutaneous, end-tidal and arterial measurements of carbon dioxide during general anaesthesia

Reid, Craig W.; Martineau, Raymond; Miller, Donald R.; Hull, Kathryn A.; Baines, John; Sullivan, Patrick J.

doi:10.1007/bf03008669

Cited by 48 publications

(20 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The carbon dioxide inside the electrodes changes the internal pH value, which results in P TC CO 2 signals. Reid CW et al [6] reported that the P a CO 2 –P et CO 2 difference increased along with P a CO 2 levels. In the patients undergoing bariatric surgery the P et CO 2 is usually greater than 40 mmHg, and P a CO 2 may be underestimated, while the P TC CO 2 is still accurately reflect the P a CO 2 levels.…”

Section: Discussionmentioning

confidence: 96%

The Application of Transcutaneous CO2 Pressure Monitoring in the Anesthesia of Obese Patients Undergoing Laparoscopic Bariatric Surgery

et al. 2014

View full text Add to dashboard Cite

To investigate the correlation and accuracy of transcutaneous carbon dioxide partial pressure (PTCCO2) with regard to arterial carbon dioxide partial pressure (PaCO2) in severe obese patients undergoing laparoscopic bariatric surgery. Twenty-one patients with BMI>35 kg/m2 were enrolled in our study. Their PaCO2, end-tidal carbon dioxide partial pressure (PetCO2), as well as PTCCO2 values were measured at before pneumoperitoneum and 30 min, 60 min, 120 min after pneumoperitoneum respectively. Then the differences between each pair of values (PetCO2–PaCO2) and. (PTCCO2–PaCO2) were calculated. Bland–Altman method, correlation and regression analysis, as well as exact probability method and two way contingency table were employed for the data analysis. 21 adults (aged 19–54 yr, mean 29, SD 9 yr; weight 86–160 kg, mean119.3, SD 22.1 kg; BMI 35.3–51.1 kg/m2, mean 42.1,SD 5.4 kg/m2) were finally included in this study. One patient was eliminated due to the use of vaso-excitor material phenylephrine during anesthesia induction. Eighty-four sample sets were obtained. The average PaCO2–PTCCO2 difference was 0.9±1.3 mmHg (mean±SD). And the average PaCO2–PetCO2 difference was 10.3±2.3 mmHg (mean±SD). The linear regression equation of PaCO2–PetCO2 is PetCO2 = 11.58+0.57×PaCO2 (r2 = 0.64, P<0.01), whereas the one of PaCO2–PTCCO2 is PTCCO2 = 0.60+0.97×PaCO2 (r2 = 0.89). The LOA (limits of agreement) of 95% average PaCO2–PetCO2 difference is 10.3±4.6 mmHg (mean±1.96 SD), while the LOA of 95% average PaCO2–PTCCO2 difference is 0.9±2.6 mmHg (mean±1.96 SD). In conclusion, transcutaneous carbon dioxide monitoring provides a better estimate of PaCO2 than PetCO2 in severe obese patients undergoing laparoscopic bariatric surgery.

show abstract

Section: Discussionmentioning

confidence: 96%

The Application of Transcutaneous CO2 Pressure Monitoring in the Anesthesia of Obese Patients Undergoing Laparoscopic Bariatric Surgery

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Until recently, transcutaneous CO 2 monitoring was used most commonly in the neonatal and occasionally in the pediatric ICU population; however, there is growing experience with its use in adult patients in both the operating room and the ICU setting. [7–914–16] These studies have demonstrated that TC-CO 2 is more accurate than ET-CO 2 in situations where the continuous monitoring of PaCO 2 is vital.…”

Section: Discussionmentioning

confidence: 99%

Noninvasive monitoring of PaCO₂ during one-lung ventilation and minimal access surgery in adults: End-tidal versus transcutaneous techniques

Cox

Tobias

2007

J Min Access Surg

View full text Add to dashboard Cite

Background:Previous studies have suggested that end-tidal CO2 (ET-CO2) may be inaccurate during one-lung ventilation (OLV). This study was performed to compare the accuracy of the noninvasive monitoring of PCO2 using transcutaneous CO2 (TC-CO2) with ET-CO2 in patients undergoing video-assisted thoracoscopic surgery (VATS) during OLV.Materials and Methods:In adult patients undergoing thoracoscopic surgical procedures, PCO2 was simultaneously measured with TC-CO2 and ET-CO2 devices and compared with PaCO2.Results:The cohort for the study included 15 patients ranging in age from 19 to 71 years and in weight from 76 to 126 kg. During TLV, the difference between the TC-CO2 and the PaCO2 was 3.0 ± 1.8 mmHg and the difference between the ET-CO2 and PaCO2 was 6.2 ± 4.7 mmHg (P=0.02). Linear regression analysis of TC-CO2 vs. PaCO2 resulted in an r2 = 0.6280 and a slope = 0.7650 ± 0.1428, while linear regression analysis of ET-CO2 vs. PaCO2 resulted in an r2 = 0.05528 and a slope = 0.1986 ± 0.1883. During OLV, the difference between the TC-CO2 and PaCO2 was 3.5 ± 1.7 mmHg and the ET-CO2 to PaCO2 difference was 9.6 ± 3.6 mmHg (P=0.03 vs. ET-CO2 to PaCO2 difference during TLV; and P<0.0001 vs. TC-CO2 to PaCO2 difference during OLV). In 13 of the 15 patients, the TC-CO2 value was closer to the actual PaCO2 than the ET-CO2 value (P =0.0001). Linear regression analysis of TC-CO2 vs. PaCO2 resulted in an r2 = 0.7827 and a slope = 0.8142 ± 0.0.07965, while linear regression analysis of ET-CO2 vs. PaCO2 resulted in an r2 = 0.2989 and a slope = 0.3026 ± 0.08605.Conclusions:During OLV, TC-CO2 monitoring provides a better estimate of PaCO2 than ET-CO2 in patients undergoing VATS.

show abstract

“…TcPCO 2 and EtCO 2 correlated well with PaCO 2 during general anesthesia, while the difference between EtCO 2 and PaCO 2 was greater than that between tcPCO 2 and PaCO 2 [113]. TcPCO 2 by TCM3™ was more accurate than EtCO 2 in patients receiving artificial ventilation via an endotracheal tube and it was also more accurate than the nasal EtCO 2 in patients breathing spontaneously [114].…”

Section: Percutaneous Oxygen and Carbon Dioxide Tensionmentioning

confidence: 99%

Recent advance in patient monitoring

Nishiyama¹

2010

Korean J Anesthesiol

View full text Add to dashboard Cite

Recent advance in technology has developed a lot of new aspects of clinical monitoring. We can monitor sedation levels during anesthesia using various electroencephalographic (EEG) indices, while it is still not useful for anesthesia depth monitoring. Some attempts are made to monitor the changes in sympathetic nerve activity as one of the indicators of stress, pain/analgesia, or anesthesia. To know the balance of sympathetic and parasympathetic activity, heart rate or blood pressure variability is investigated. For trend of cardiac output, low invasive monitors have been investigated. Improvement of ultrasound enables us to see cardiac structure and function continuously and clearer, increases success rate and decreases complication of central venous puncture and various kinds of nerve blocks. Without inserting an arterial catheter, trends of arterial oxygen tension or carbon dioxide tension can be monitored. Indirect visualization of the airway decreases difficult intubation and makes it easier to teach tracheal intubation. The changes in blood volume can be speculated non-invasively. Cerebral perfusion and metabolism are not ordinary monitored yet, but some studies show their usefulness in management of critically ill. This review introduces recent advances in various monitors used in anesthesia and critical care including some studies of the author, especially focused on EEG and cardiac output. However, the most important is that these new monitors are not almighty but should be used adequately in a limited situation where their meaning is confirmed.

show abstract

A comparison of transcutaneous, end-tidal and arterial measurements of carbon dioxide during general anaesthesia

Abstract: O' = O, 904x + 6, 36, r = O, 92, P 0,001). Les mesures de la PE'rCO 2 ont aussi dEmontrE une bonne correlation avec la PaCO 2 (y = 0,62x + 9,21, r = 0,89, et P < 0,01

Cited by 48 publications

References 16 publications

The Application of Transcutaneous CO2 Pressure Monitoring in the Anesthesia of Obese Patients Undergoing Laparoscopic Bariatric Surgery

The Application of Transcutaneous CO2 Pressure Monitoring in the Anesthesia of Obese Patients Undergoing Laparoscopic Bariatric Surgery

Noninvasive monitoring of PaCO₂ during one-lung ventilation and minimal access surgery in adults: End-tidal versus transcutaneous techniques

Recent advance in patient monitoring

Contact Info

Product

Resources

About

A comparison of transcutaneous, end-tidal and arterial measurements of carbon dioxide during general anaesthesia

Abstract: O' = O, 904x + 6, 36, r = O, 92, P 0,001). Les mesures de la PE'rCO 2 ont aussi dEmontrE une bonne correlation avec la PaCO 2 (y = 0,62x + 9,21, r = 0,89, et P < 0,01

Cited by 48 publications

References 16 publications

The Application of Transcutaneous CO2 Pressure Monitoring in the Anesthesia of Obese Patients Undergoing Laparoscopic Bariatric Surgery

The Application of Transcutaneous CO2 Pressure Monitoring in the Anesthesia of Obese Patients Undergoing Laparoscopic Bariatric Surgery

Noninvasive monitoring of PaCO2 during one-lung ventilation and minimal access surgery in adults: End-tidal versus transcutaneous techniques

Recent advance in patient monitoring

Contact Info

Product

Resources

About

Noninvasive monitoring of PaCO₂ during one-lung ventilation and minimal access surgery in adults: End-tidal versus transcutaneous techniques