It works only in coordination with the primary cookie. Records the default button state of the corresponding category & the status of CCPA. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
The cookie is used to store the user consent for the cookies in the category "Analytics". Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category. These cookies ensure basic functionalities and security features of the website, anonymously. In conclusion we suggest that measurement of end-tidal CO2 tension, especially difference between arterial and end-tidal CO2 tension, may be a useful indicator for detection of cardiac output change during operation.Necessary cookies are absolutely essential for the website to function properly. 4) Changes in cardiac ourput correlated with changes in differences between arterial-end-tidal CO2 tension significantly(p=0.0001, r=-0.59, slope=-1.63). 3) Changes in cardiac ourput correlated with changes in end-tidal CO2 tension significantly(p=0.0001, r=0.61, slope=2.01). tension in all phases compared to control value(p<0.05). 2) Decreases of cardiac output brought about significant increase in the difference between arterial- end-tidal CO2. The results are as follows: 1) Decreases of cardiac output brought about significant decrease in end-tidal CO2 in all phases compared to control value(p<0,05). Measured values were statistically analyzed to evaluate correlation between cardiac output and end-tidal CO2 tension. We also measured arterial CO2 tension, and end-tidal CO2 tension at the time of 10% decrease(phasel), 15% decrease(phase2)and 20% decrease(phase3) of cardiac output respectively. To understand the effect of cardiac output on end-tidal CO2 tension and the difference between arterial CO2 tension and end-tidal CO2 tension, We measured cardiac output before and dutiag administration of nitroglycerine and sodium nitropruside for relieve of myocardial load before aortic clamping in 30 male patients undergoing aortic recontructive surgery under endotracheal anesthesia for repair of infrarenal aortic obstruction. Decrease of alveolar capillary perfusion from low cardiac output is the most important cause of low measure of end-tidal CO and large difference between arterial CO2 and end-tidal CO2 concentration in perioperative period. In clinical situation, the major factor which determines alveolar dead space is low pulmonary blood flow. The difference is originated from alveolar dead space gas which dilute concentration of CO2 from normal alveoli. is different from that of arterial CO2 even in normal individual. A normal curve on capnogram suggests normal CO2 production, adequate circulation, and adequate ventilation. The Effect of Decrease in Cardiac Output on End-Tidal CO2 and Difference between Arterial and End-Tidal CO2 Tension.ĭepartment of Anesthesiology, Catholic University Medical College, Seoul, Korea.Ĭapnogram, monitoring of end-tidal CO2, has been a popular tool for assessment of ventilatory status during modern anesthesia.
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