View clinical trials related to Carbon Dioxide.
Filter by:It is unknown whether different end-tidal carbon dioxide pressure levels have a clinically significant effect on bleeding and surgical field quality in septorhinoplasty, especially during controlled hypotension. Therefore, it was aimed to investigate the effect of ventilation strategy with controlled hypocapnia on intraoperative bleeding and surgical field quality for commonly practiced in septorhinoplasty.
An Interventional Study is planned with the primary purpose of screening for changes in end-tidal carbon dioxide (ETCO2), inspired carbon dioxide (ICO2), and other vital signs that may develop after donning a disposable surgical mask. Measurements will be taken and recorded during a 5-minute control period without a mask, recording non-invasive ETCO2 and ICO2 levels by way of a nasal cannula (NC), oxygen saturation (SpO2), breaths per minute (RR), and heart rate (HR) via anesthesia equipment. This will be followed by a 15-minute intervention of wearing a disposable surgical mask and repeating measurements of ETCO2, ICO2, SpO2, RR, and HR, recorded each minute. Data will be collected from adults and children as young as 2 years of age. Age groups will include children aged 2-14 and adults aged 18 to 80, as described in the details of the research protocol. Parents and their children are invited to participate together.
This is a prospective, single arm, open, single centre clinical investigation designed to examine the feasibility and safety of the IscAlert™ device in patients scheduled for limb (arm/leg) surgery with tourniquet. IscAlert is measuring CO2 in muscular and subcutaneous tissue. IscAlert is inserted into normal muscle and subcutaneous tissue in ischemic (operated limb with a tourniquet) and non-ischemic limb (non-operated limb).After the tourniquet is inflated, ischemia develops in the muscles and subcutaneous tissue. This will result in an increase in CO2, which will be detected by the sensors on the operated extremity, while the sensors on the non-operated will show normal values. After releasing the tourniquet cuff, the muscle will be reperfused and the CO2 level is expected to decrease into normal levels. 50 number of patients will be enrolled to undergo the procedures. The IscAlert will be removed from the patient before the patient is discharged from the operating room, but in 25 of the patients, IscAlert™ will be inserted for 72 hours in the operated extremity after the end of surgery. After this, the sensors are removed. 250 Devices is planned to be used in this clinical study.
By observing the changes of Central venous-arterial partial pressure difference of carbon dioxide [P (v-a) CO2] in liquid resuscitation during early escharectomy in patients with large-scale burns, We investigate the effect of P (v-a) CO2 on postoperative tissue perfusion and oxygenation in order to seek a more effective intergrated target plan of liquid resuscitation for burn patients.
CO2 monitoring through non-invasive methods at different O2 flow rates may provide an early warning sign of hypoventilation during procedural sedation.
Carbon dioxide insufflation during colonoscopy significantly reduces discomfort (pain, bloating and flatulence) after the procedure. So far, it has not been studied in inflammatory bowel disease patients. The study was designed to evaluate discomfort after the carbon dioxide insufflation colonoscopy in comparison to standard air insufflation colonoscopy.
The purpose of this study is to investigate how inspiratory flow pattern influences CO2 elimination in people without primary lung disease. The hypothesis is that a long mean distribution time, caused by a long postinspiratory pause and high end-inspiratory flow, will promote CO2 exchange in the alveoli.
Endovascular repair of infrarenal abdominal aortic aneurysms (AAA) requires a contrast agent to identify the vascular anatomy and placement of the stent graft. Iodine contrast has traditionally been used, but has the potential to harm the kidneys. Another contrast agent is carbon dioxide gas. It has been proven safe to use, but the quality of the images it creates needs to be compared to iodine contrast. Patients in this study undergo the endovascular AAA repair as they normally, with the iodine contrast. At the end of surgery carbon dioxide gas contrast is given as an extra step. The images will be later evaluated.