Effects of Brachial Plexus Block on Tissue Oxygenation
- Conditions
- Tissue Oxygenation
- Interventions
- Device: Near Infrared Spectroscopy (NIRS)
- Registration Number
- NCT05269251
- Lead Sponsor
- Gazi University
- Brief Summary
The aim of this study is to measure the effects of sympathetic blockade caused by peripheral nerve blocks performed with the axillary, infraclavicular and interscalene approach on tissue oxygenation with Near Infrared Spectroscopy (NIRS), to evaluate and compare the radial artery flow velocity and diameter in the blocked extremity, and to investigate whether there is a relationship with the quality of the sensory and motor block.
- Detailed Description
It has been reported that vasodilation after peripheral nerve blocks increases tissue oxygenation and increases arterial circulation on the ipsilateral side . Near Infrared Spectroscopy (NIRS), a noninvasive measurement method of tissue oxygen level, is used to measure regional hemoglobin oxygen saturation of arterial, venous and capillary blood .
Many studies have compared the effects of upper extremity peripheral nerve blocks on the onset, quality, extent, and postoperative pain of sensory and motor block through axillary, infraclavicular, supraclavicular and interscalene approaches.
The aim of this study is to measure the effects of sympathetic blockade caused by peripheral nerve blocks performed with the axillary, infraclavicular and interscalene approach on tissue oxygenation with Near Infrared Spectroscopy (NIRS), to evaluate and compare the radial artery flow velocity and diameter in the blocked extremity, and to investigate whether there is a relationship with the quality of the sensory and motor block.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 99
- ASA I-III patients
- Patients between the ages of 18 and 65
- Patients who applied axillary block
- Patients who applied infraclavicular block
- Patients who applied interscalene block
- Peripheral nerve disease a history
- History of thrombosis in the extremity to be blocked
- History of embolism in the extremity to be blocked
- Presence of neuropathy
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Axillary Brachial Plexus Block Near Infrared Spectroscopy (NIRS) Our study includes 3 groups, 33 patients each who underwent axillary, infraclavicular and interscalene blocks. In the study, which of the axillary, infraclavicular and interscalene blocks will be preferred, will be decided by an experienced anesthesiologist in accordance with the type of surgery to be performed. Demographic data, comorbidities, and smoking will be questioned in each group, arterial blood pressure, heart rate, body temperature, radial artery diameter and flow velocities will be recorded before peripheral nerve block is applied, and tissue oxygenation will be measured with Near Infrared Spectroscopy (NIRS) in the extremities with and without block. Tissue oxygenation, radial artery flow velocity and diameters, body temperature will be measured simultaneously at 0(basal)-5-10-15-20-25 and 30th minutes after the application of the block. test will be applied and the success of the procedure will be determined accordingly. Infraclavicular Brachial Plexus Block Near Infrared Spectroscopy (NIRS) Our study includes 3 groups, 33 patients each who underwent axillary, infraclavicular and interscalene blocks. In the study, which of the axillary, infraclavicular and interscalene blocks will be preferred, will be decided by an experienced anesthesiologist in accordance with the type of surgery to be performed. Demographic data, comorbidities, and smoking will be questioned in each group, arterial blood pressure, heart rate, body temperature, radial artery diameter and flow velocities will be recorded before peripheral nerve block is applied, and tissue oxygenation will be measured with Near Infrared Spectroscopy (NIRS) in the extremities with and without block. Tissue oxygenation, radial artery flow velocity and diameters, body temperature will be measured simultaneously at 0(basal)-5-10-15-20-25 and 30th minutes after the application of the block. test will be applied and the success of the procedure will be determined accordingly. Interscalene Brachial Plexus Block Near Infrared Spectroscopy (NIRS) Our study includes 3 groups, 33 patients each who underwent axillary, infraclavicular and interscalene blocks. In the study, which of the axillary, infraclavicular and interscalene blocks will be preferred, will be decided by an experienced anesthesiologist in accordance with the type of surgery to be performed. Demographic data, comorbidities, and smoking will be questioned in each group, arterial blood pressure, heart rate, body temperature, radial artery diameter and flow velocities will be recorded before peripheral nerve block is applied, and tissue oxygenation will be measured with Near Infrared Spectroscopy (NIRS) in the extremities with and without block. Tissue oxygenation, radial artery flow velocity and diameters, body temperature will be measured simultaneously at 0(basal)-5-10-15-20-25 and 30th minutes after the application of the block. test will be applied and the success of the procedure will be determined accordingly.
- Primary Outcome Measures
Name Time Method tissue oxygenation 30 minutes Measured from both extremities by Near Infrared Spectroscopy for 30 min after brachial nerve block.
- Secondary Outcome Measures
Name Time Method Radial artery diameter 30 minutes measured on the side of the block after brachial nerve block
Trial Locations
- Locations (1)
Demet Coskun
🇹🇷Ankara, Turkey