View clinical trials related to Nerve Block.
Filter by:Total joint replacement is projected to become the most common elective surgical procedure in the coming decade; the prevalence of total hip arthroplasty (THA) was estimated as more than 2.5 million individuals in the entire United States population. Orthopedic procedures involving the hip have remained challenging for regional anesthesia given the complex innervation, painful nature contributing to difficulty positioning, and a desire to maintain mobility to hasten postoperative recovery.
The aim of this study is to evaluate the feasibility of the Pectoralis Nerve (PECS) block for CIED insertion.
Chronic postsurgical pain (CPSP) has an incidence of 46% in patients after breast cancer surgery, which seriously affects patients' physiological and psychological function, as well as quality of life. Acute pain is an independent risk factor for persistent pain after surgery. Erector spinae plane block (ESPB) provided excellent perioperative analgesia in patients undergoing breast surgery. Dexmedetomidine as an adjuvant of local anesthetics prolongs the duration of peripheral nerve block and decreases the requirements of postoperative analgesia. The investigators hypothesize that, for breast cancer patients undergoing mastectomy, ESPB (with a combination of 0.5% ropivacaine 35 ml and dexmedetomidine 1 microgram/kg) can reduce the occurrence of CPSP. The purpose of this randomized controlled trial is to investigate the impact of ESPB with adjuvant dexmedetomidine on the incidence of CPSP in breast cancer patients after mastectomy. We will also observe the impact of ESPB on long-term survival in these patients.
This study hypothesizes that the use of smart glasses (Head-mounted display Vufine, model VUF-110, Vufine Inc., China)) improves the hand-eye coordination and the first-attempt success rate of ultrasound guided interscalene nerve block. This is a single-center, randomized, controlled study comparing the real-time ultrasound image through smart glasses (intervention group) or the ultrasound machine's monitor (control group) during the interscalene block.
Effects of Transabdominal Plain Block and Quadratus Lumborum Block After Laparoscopic Hemicolectomy. The pain relief, bowel function and discharge.
High-frequency alternating current (HFAC) stimulation (between 1 kilohertz (kHz) and 100 kHz) on the peripheral nerve has been shown in basic animal research to produce a rapidly reversible nerve block without nerve damage. In human studies, frequencies between 1 kHz and 30 kHz had been applied (both transcutaneously and percutaneously), showing rapidly reversible sensorimotor changes after stimulation without adverse effects. However, the effect of currents with a frequency higher than 30 kHz, which has been shown to be more effective in eliciting nerve block in primates, has not been investigated in humans. The main objective of this study is to investigate the safety of the intervention and the effect in healthy volunteers of transcutaneous application of alternating currents with frequencies between 30 kHz and 50 kHz on neurophysiological changes in the nerve (nerve conduction velocity and antidromic sensory action potentials (SNAPs), sensory (pain to pressure, epicritic sensitivity and thermal pain to heat) and motor (maximal isometric force) components of the median nerve.
Patients undergoing total hip arthroplasty are randomly assigned to two groups (fascia iliaca compartement block [FICB] group or quadratus lumborum block [QLB] group). In the FICB group, ultrasound-guided suprainguinal FICB (30 ml of 0.375% ropivacaine with 75 µg of epinephrine) is performed on the ipsilateral surgical side at the end of surgery. In the QLB group, ultrasound-guided anterior QLB (30 ml of 0.375% ropivacaine with 75 µg of epinephrine) is done on the ipsilateral surgical side at the end of surgery. A standardized multimodal analgesic regimen is used for postoperative pain control. The total use of opioids including patient-controlled analgesia and rescue analgesics is compared in both groups for 24 hours after surgery. The amount of opioids used is compared by conversion to oral morphine equivalent dose. Pain score at rest and movement during postoperative 24 hours, time to first request for analgesics, the incidence of side effects, patient satisfaction for pain control at postoperative 24 hours, quality of recovery at postoperative 24 hours, time to discharge readiness, and hospital length of stay are compared.
In modern anesthesiology, peripheral nerve blocks are performed using ultrasound control and electrical stimulation of peripheral nerves (PEN), or only ultrasound control or only EPN. The most effective methods are with the use of ultrasound control. Until now, the effectiveness of the femoral nerve blockade, performed only under ultrasound control without EPN, in comparison with the blockade of the femoral nerve performed under ultrasound control with EPN, has not been established. There is no data on how the effectiveness of the blockade of the femoral nerve with small doses of lidocaine is influenced by the method of performing the blockade: under ultrasound control versus ultrasound control with electrostimulation of the nerve. Research hypothesis: the blockade of the femoral nerve (7.5 ml 1%lidocaine -Minimum Effective Dose - previously established ) performed only under ultrasound control has the same effectiveness as the blockade performed under the ultrasound control with EPN.
There is little work comparing the effectiveness of a femoral nerve block performed only under US guidance or US plus electrical stimulation of the peripheral nerve (EPN). The authors have shown the same effectiveness of these techniques(1).But the effectiveness of the blockade of the femoral nerve (complete blockade) performed in different ways turned out to be low valve: 71.7% for ultrasound in combination with electrical stimulation versus 69% for only ultrasound guidance. Research hypothesis: the blockade of the femoral nerve performed only under ultrasound control has the same effectiveness as the blockade performed under the ultrasound control with EPN.
This subject intends to explore the value of intraoperative celiac plexus block in postoperative acute pain management and its promoting effect on patients' rapid recovery during epigastric laparotomy through a randomized controlled trial.