NIRS Measurement After SCP Block
- Conditions
- Arterio-venous Fistula
- Interventions
- Drug: Supraclavicular nerve block
- Registration Number
- NCT03044496
- Lead Sponsor
- Marienhospital Stuttgart
- Brief Summary
Peripheral regional anesthesia induces a sympathectomy-like effect with neurovascular changes causing increased arterial blood flow and venodilatation .
Near-infrared spectroscopy (NIRS) can be applied to different kinds of tissue providing oxygen saturation by detecting the absorption and reflection of near-infrared light .
The effect on peripheral tissue oxygenation in patients undergoing arteriovenous fistula revision has not yet been examined. We postulate an increase in tissue oxygenation by sympathicolysis caused by peripheral regional anesthesia that might be the reason for beneficial outcome. The aim of our study was to demonstrate the effect of a supraclavicular plexus block in this group of patients.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 15
- all patients undergoing surgery under regional anaesthesia
- patients refusal
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Supraclavicular Nerve Block Supraclavicular nerve block Patients undergoing vascular surgery for creation or revision of an arterio-venous fistula. Intervention: supraclavicular plexus block for anaesthesia. NIRS measurement before and after brachial plexus block.
- Primary Outcome Measures
Name Time Method NIRS after block 5 minutes before block until 30 minutes after block Absolute change from baseline value in tissue oxygenation
- Secondary Outcome Measures
Name Time Method Difference between both arms 5 minutes before block until 30 minutes after block Absolute difference in tissue oxygenation between blocked arm and contralateral arm
Trial Locations
- Locations (1)
Marienhospital Stuttgart, Dpt. of Anaesthesiology
🇩🇪Stuttgart, Baden Württemberg, Germany