Retroperitoneoscopic Urologic Surgery, Transcutaneous Carbon Dioxide Partial Pressure Monitoring
Conditions
Keywords
transcutaneous carbon dioxide, retroperitoneoscopic, urologic surgery, anesthesia
Brief summary
To investigate the accuracy and correlation of estimating arterial CO2 pressure（PaCO2） using a transcutaneous CO2 pressure（PTCCO2） monitor in patients undergoing retroperitoneoscopic renal or adrenal surgery.
Detailed description
30 patients undergoing retroperitoneoscopic renal or adrenal surgery were included in this study.Their PaCO2, PetCO2, and PTCCO2values were measured at 3 time points before and 30min, 60min after pneumoperitoneum and calculated the different between each measure(PetCO2 and PTCCO2) and PaCO2. Agreement among measures was assessed by the Bland-Altman method.
Interventions
DEVICEtranscutaneous monitor (TCM-4 monitor)
TCM-4 monitor, which had changed new electrode membrane and was calibrated by the same person(who had been trained systematically) before each placement. The electrode should be heated to 44℃, then fixed it to the anterior part of chest in the location of lateral position after remove grease by alcohol. The positon of electrode must be changed every 2 hours in order to avoid thermal injury, and should be calibrated again.
Sponsors
The First Affiliated Hospital with Nanjing Medical University
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SUPPORTIVE_CARE
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
16 Years to No maximum
Healthy volunteers
No
Inclusion criteria
1. patients undergoing retroperitoneoscopic renal or adrenal surgery 2. Age more than 16 years.
Exclusion criteria
1. Care taker unable or unwilling to give oral informed consent 2. Patients with history of severe trauma, operations, smoking, and severe cardiovascular or respiratory diseases, such as coronary heart disease, congestive heart failure, or chronic obstructive pulmonary disease 4.Subject has a condition or allergy which would prohibit placing the probe 5.Subject has participated in a trial with any experimental drug or device trial within 30 days prior to enrollment in the study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Bias and precision of the transcutaneous carbon dioxide measurements | 0 minutes(baseline) | correlation and agreement between PetCO2 and PaCO2 and PTCCO2 |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| complication: appearance of signs of thermal injury (redness, skin erythema, blisters, necrosis) under application of transcutaneous sensor temperatures of 44°C ) | 0 minutes(baseline) | While the sensor temperatures heated to 44°C, the skin will be closely observed for any kind of thermic tissue damage |
Countries
China
Outcome results
None listed