View clinical trials related to Nerve Block.
Filter by:After thoracoscopic surgery, patients still face moderate to severe pain. How to effectively control pain and promote postoperative recovery of patients is a challenging problem. Thoracic paraspinal block is effective in controlling pain after thoracoscopic surgery, but it also carries the risk of difficulty in operation and puncture of the pleura. In recent years, erector spinal plane block and serratus anterior plane block have been used for postoperative analgesia after thoracoscopic surgery. The purpose of this study was to explore whether erector spinal plane combined with serratus anterior plane block can replace thoracic paravertebral block and provide a more complete analgesia after thoracoscopic surgery. Therefore, this study is of great clinical significance.
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.
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.
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.
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.
The aim of the study is to compare the analgesic nociception index (ANI), which is used to determine the dose of analgesic agent needed in the intraoperative period, with the conventional method in patients with erector spinae block who underwent gynecological surgery under general anesthesia.
Our objective is to investigate the extent of cranial dermatomal spread of transmuscular quadratus lumborum block(TMQLB )when equal dosage(ml/kg) of local anesthetic are injected with the transverse versus an modified paramedian sagittal approach for patients undergoing laparoscopic adrenalectomy.