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Investigators evaluate the effect of patient position (Trendelenburg and reverse Trendelenburg) on arterial, end-tidal and transcutaneous carbon dioxide partial pressure in patients undergoing laparoscopic surgery.
Investigators evaluate the effect of patient position (Trendelenburg and reverse Trendelenburg) on arterial, end-tidal and transcutaneous carbon dioxide partial pressure in patients undergoing laparoscopic surgery. Arterial carbon dioxide partial pressure is assessed intermittently before, during, and after pneumoperitoneum. End-tidal and transcutaneous carbon dioxide partial pressure are continuously monitored.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Trendelenburg group | Active Comparator | Arterial, end-tidal, and transcutaneous carbon dioxide partial pressure are monitored in the Trendelenberg position |
|
| reverse Trendelenburg group | Active Comparator | Arterial, end-tidal, and transcutaneous carbon dioxide partial pressure are monitored in the reverse Trendelenberg position |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Arterial carbon dioxide monitoring | Other | Arterial carbon dioxide partial pressure is monitored during the laparoscopic surgery undergoing in the Trendelenburg or reverse Trendelenburg positions. |
| Measure | Description | Time Frame |
|---|---|---|
| Difference between arterial and end-tidal carbon dioxide pressures | Difference between arterial and end-tidal carbon dioxide partial pressures are calculated. (Arterial carbon dioxide partial pressure minus end-tidal carbon dioxide partial pressure) | baseline before CO2 pneumoperitoneum, every 30 minute during CO2 pneumoperitoneum, and 15 min after deflation of CO2 |
| Measure | Description | Time Frame |
|---|---|---|
| Agreement among arterial, end-tidal, and transcutaneous carbon dioxide partial pressure | Arterial, end-tidal, and transcutaneous carbon dioxide partial pressures are recorded and the agreement among the values is analyzed using the statistical test. | baseline before CO2 pneumoperitoneum, every 30 minute during CO2 pneumoperitoneum, and 15 min after deflation of CO2 |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Jin-Young Hwang, MD.Ph.D. | Contact | 82-2-870-2518 | mistyblue15@naver.com |
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| ID | Term |
|---|---|
| D001785 | Blood Gas Monitoring, Transcutaneous |
| ID | Term |
|---|---|
| D010092 | Oximetry |
| D001784 | Blood Gas Analysis |
| D001774 | Blood Chemical Analysis |
| D019963 | Clinical Chemistry Tests |
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| End-tidal carbon dioxide monitoring | Other | End-tidal carbon dioxide partial pressure is monitored during the laparoscopic surgery undergoing in the Trendelenburg or reverse Trendelenburg positions. |
|
| Transcutaneous carbon dioxide monitoring | Other | Transcutaneous carbon dioxide partial pressure is monitored during the laparoscopic surgery undergoing in the Trendelenburg or reverse Trendelenburg positions. |
|
| D019411 |
| Clinical Laboratory Techniques |
| D019937 | Diagnostic Techniques and Procedures |
| D003933 | Diagnosis |
| D006334 | Heart Function Tests |
| D003935 | Diagnostic Techniques, Cardiovascular |
| D012129 | Respiratory Function Tests |
| D003948 | Diagnostic Techniques, Respiratory System |
| D008919 | Investigative Techniques |