View clinical trials related to Nerve Block.
Filter by:This prospective, randomized study,control study aims to compare the analgesic effect,opioids consumption,quality of recovery,length of hospital stay and incidence of chronic pain,et al. between single-injection QLB(quadratus lumborum block)+ intravenous patient-controlled analgesia (IPCA) and intravenous patient-controlled analgesia (IPCA) alone in patients undergoing laparoscopic renal surgeries.
This prospective, randomized study,control study aims to compare the analgesic effect,opioids consumption,quality of recovery,length of hospital stay and incidence of chronic pain,et al. single-injection TPVB +continuous(pulsatile infusion) TPVB and intravenous patient-controlled analgesia (IPCA) alone in patients undergoing hepatectomy with right J-shape subcostal incision.
This study compares the long-axis and short-axis technique of continues adductor canal block for total knee replacement surgery. Half participants will receive long-axis catheterization, while the other half will receive short-axis catheterization.
In this study, the investigators will compare the intraoperative opioid consumption for patients undergoing breast cancer surgery. The patients will be divided in two groups, the first one will receive a pectoral nerve block right after induction of anesthesia and the second one, the control group, will not receive the pectoral block. Our hypothesis is that the pectoral nerve block reduces the opioid consumption during the surgery.
Ultrasound-guided regional anesthesia is increasingly being used in the modern surgical environment to provide specific intraoperative anesthesia and postoperative analgesia. Infiltration of local anesthesics around peripheral nerves firs blocks sympathetic, then sensory, then motor nerve function. Sympathectomy-induced vasodilation following brachial plexus block results in increased skin temperature and arterial flow within minutes. Although it has not been shown to reliably increase diameter or cross-sectional area of distal arteries, brachial plexus block does change the pattern and quantity of blood flow to the hand. Given that the magnitude of change of flow cannot be attributed to vessel radius, the investigators suspect that the more laminar fluid dynamics are due to vascular tone. The investigators study aims to quantify alterations in physiology and peripheral vasodilator response. The investigators anticipate that axially block will significantly improve regional blood flow.
To randomize 108 patients undergoing knee replacement surgery to catheter through needle or catheter over needle femoral nerve blocks, then monitor the catheters for leakage to see if there is a difference.
A standard interscalene nerve block is performed with long acting local anesthetic (bupivacaine or ropivacaine in concentrations varying from 0.25% to 0.75%). The purpose of this study is to investigate the effect of the addition of perineural dexamethasone (4mg) to a standard ropivacaine solution (0.5%) on analgesic duration of low dose interscalene block compared to ropivacaine alone for interscalene block with systemic dexamethasone. Ropivacaine is not an intervention as a local anesthetic is pre-requisite to performing a nerve block.
Thermal quantitative sensory testing (QST) is a method to evaluate peripheral nerve blocks in a quantitative way. It assesses the neurosensory effects of local anesthetics, like nerve block intensity, duration, recovery, neurotoxicity, the effect of spread of local anesthetic solutions and the effect and the eventual neurotoxicity of adjuvants. We aimed at investigating, in a quantitative way, the block characteristics of 3 different commonly used local anesthetics on peripheral nerves through the application of thermal QST by measuring changes in sensory detection thresholds. Furthermore, we wanted to evaluate if QST could be of value for measuring gradual changes in block characteristics on the adjacent nerves at distance of the injection site in an US-ISB.
The purpose of this study is to determine if patients undergoing a Total Knee Arthroplasty who receive a single shot Adductor Canal nerve block and local infiltration will have improved functional outcomes compared to individuals who receive a femoral nerve block and local infiltration during the first 24 hours post surgery.
The purpose of this study is to further investigate the efficacy of adductor canal nerve blocks for pain management after total knee replacement. Specifically we are studying adductor canal nerve blocks in conjunction with epidural anesthesia, which is a combination that has not been extensively researched before. Our question is whether combining these modalities will enhance patient satisfaction after surgery and accelerate patients' readiness to discharge.