scholarly journals Deep Breathing Improves End-Tidal Carbon Dioxide Monitoring of an Oxygen Nasal Cannula-Based Capnometry Device in Subjects Extubated After Abdominal Surgery

2016 ◽  
Vol 62 (1) ◽  
pp. 86-91
Author(s):  
S. Takaki ◽  
K. Mizutani ◽  
M. Fukuchi ◽  
T. Yoshida ◽  
M. Idei ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Abdominal Surgery ◽  
Nasal Cannula ◽  
Deep Breathing ◽  
End Tidal Carbon Dioxide ◽  
Carbon Dioxide Monitoring ◽  
End Tidal

scholarly journals Noninvasive Capnometry for End-tidal Carbon Dioxide Monitoring via Nasal Cannula in Nonintubated Neonates

2010 ◽  
Vol 51 (6) ◽  
pp. 330-335 ◽  
Author(s):  
Chih-Che Tai ◽  
Frank Leigh Lu ◽  
Pau-Chung Chen ◽  
Suh-Fang Jeng ◽  
Hung-Chieh Chou ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Nasal Cannula ◽  
End Tidal Carbon Dioxide ◽  
Carbon Dioxide Monitoring ◽  
End Tidal

Trends in Anesthesia-related Death and Brain Damage

2006 ◽  
Vol 105 (6) ◽  
pp. 1081-1086 ◽  
Author(s):  
Frederick W. Cheney ◽  
Karen L. Posner ◽  
Lorri A. Lee ◽  
Robert A. Caplan ◽  
Karen B. Domino
Keyword(s):  
Carbon Dioxide ◽  
Pulse Oximetry ◽  
Brain Damage ◽  
Adverse Outcomes ◽  
Malpractice Claims ◽  
End Tidal Carbon Dioxide ◽  
Carbon Dioxide Monitoring ◽  
Permanent Brain Damage ◽  
End Tidal ◽  
Closed Claims

Background The authors used the American Society of Anesthesiologists Closed Claims Project database to determine changes in the proportion of claims for death or permanent brain damage over a 26-yr period and to identify factors associated with the observed changes. Methods The Closed Claims Project is a structured evaluation of adverse outcomes from 6,894 closed anesthesia malpractice claims. Trends in the proportion of claims for death or permanent brain damage between 1975 and 2000 were analyzed. Results Claims for death or brain damage decreased between 1975 and 2000 (odds ratio, 0.95 per year; 95% confidence interval, 0.94-0.96; P < 0.01). The overall downward trend did not seem to be affected by the use of pulse oximetry and end-tidal carbon dioxide monitoring, which began in 1986. The use of these monitors increased from 6% in 1985 to 70% in 1989, and thereafter varied from 63% to 83% through the year 2000. During 1986-2000, respiratory damaging events decreased while cardiovascular damaging events increased, so that by 1992, respiratory and cardiovascular damaging events occurred in approximately the same proportion (28%), a trend that continued through 2000. Conclusion The significant decrease in the proportion of claims for death or permanent brain damage from 1975 through 2000 seems to be unrelated to a marked increase in the proportion of claims where pulse oximetry and end-tidal carbon dioxide monitoring were used. After the introduction and use of these monitors, there was a significant reduction in the proportion of respiratory and an increase in the proportion of cardiovascular damaging events responsible for death or permanent brain damage.

scholarly journals Accuracy of Postoperative End-tidal Pco2Measurements with Mainstream and Sidestream Capnography in Non-obese Patients and in Obese Patients with and without Obstructive Sleep Apnea

2009 ◽  
Vol 111 (3) ◽  
pp. 609-615 ◽  
Author(s):  
Yusuke Kasuya ◽  
Ozan Akça ◽  
Daniel I. Sessler ◽  
Makoto Ozaki ◽  
Ryu Komatsu
Keyword(s):  
Carbon Dioxide ◽  
Body Mass Index ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Nasal Cannula ◽  
Obese Patients ◽  
Obstructive Sleep ◽  
End Tidal Carbon Dioxide ◽  
Carbon Dioxide Pressure ◽  
End Tidal

Background Obtaining accurate end-tidal carbon dioxide pressure measurements via nasal cannula poses difficulties in postanesthesia patients who are mouth breathers, including those who are obese and those with obstructive sleep apnea (OSA); a nasal cannula with an oral guide may improve measurement accuracy in these patients. The authors evaluated the accuracy of a mainstream capnometer with an oral guide nasal cannula and a sidestream capnometer with a nasal cannula that did or did not incorporate an oral guide in spontaneously breathing non-obese patients and obese patients with and without OSA during recovery from general anesthesia. Methods The study enrolled 20 non-obese patients (body mass index less than 30 kg/m) without OSA, 20 obese patients (body mass index greater than 35 kg/m) without OSA, and 20 obese patients with OSA. End-tidal carbon dioxide pressure was measured by using three capnometer/cannula combinations (oxygen at 4 l/min): (1) a mainstream capnometer with oral guide nasal cannula, (2) a sidestream capnometer with a nasal cannula that included an oral guide, and (3) a sidestream capnometer with a standard nasal cannula. Arterial carbon dioxide partial pressure was determined simultaneously. The major outcome was the arterial-to-end-tidal partial pressure difference with each combination. Results In non-obese patients, arterial-to-end-tidal pressure difference was 3.0 +/- 2.6 (mean +/- SD) mmHg with the mainstream capnometer, 4.9 +/- 2.3 mmHg with the sidestream capnometer and oral guide cannula, and 7.1 +/- 3.5 mmHg with the sidestream capnometer and a standard cannula (P < 0.05). In obese non-OSA patients, it was 3.9 +/- 2.6 mmHg, 6.4 +/- 3.1 mmHg, and 8.1 +/- 5.0 mmHg, respectively (P < 0.05). In obese OSA patients, it was 4.0 +/- 3.1 mmHg, 6.3 +/- 3.2 mmHg, and 8.3 +/- 4.6 mmHg, respectively (P < 0.05). Conclusions Mainstream capnometry performed best, and an oral guide improved the performance of sidestream capnometry. Accuracy in non-obese and obese patients, with and without OSA, was similar.

Sign in / Sign up

Export Citation Format

Share Document