Abstract
In order to monitor the effect of nerve block in postoperative analgesia more accurately, this paper puts forward the application research of ultrasonic real-time intelligent monitoring of nerve block in postoperative analgesia. Ultrasonic real-time intelligent monitoring of nerve block in upper limb surgery, lower limb surgery, and abdominal surgery combined with the nerve stimulator. The experiments show that there are 5 cases of adverse reactions when the nerve stimulator is only used, but no adverse reactions occur when combined with ultrasound-guided block. Continuous subclavian brachial plexus block with the ultrasound-guided nerve stimulator can clearly see the subclavian brachial plexus and its surrounding tissue structure, the direction of needle insertion in the plane, and the diffusion of narcotic drugs. The average success rate of block was up to 95.2%, which was significantly higher than that of nerve stimulator alone, and the success rate of recatheterization after the first failure was also improved. The average postoperative analgesia satisfaction was 85.6%, the average operation time was only 20 min, and the subclavian artery and pleura were avoided effectively. No pneumothorax and other complications occurred. The average success rate of ultrasound-guided subclavicular brachial plexus block in 1-2-year-old children was 97%, which was much higher than the average success rate of nerve stimulator localization with 63%. Ultrasound-guided nerve block not only directly blocks nerves under visual conditions but also helps to observe the structures around nerves and dynamically observe the diffusion of local anesthetics, which can significantly improve the accuracy and success rate of nerve block and reduce the incidence of complications.
Highlights
Postoperative pain mainly concentrated in 24–48 h after operation, and pain itself and its influence on the normal functions of patients’ breathing, circulation, digestion, and other systems were not conducive to the functional recovery of patients after operation [1]
Regional nerve block is a common method for clinical anesthesia and analgesia, and its clinical effect mainly depends on the position of the needle tip. e traditional nerve block methods are mainly the location of anatomical landmarks on the body surface, blind exploration of abnormal sensation, and nerve electrical stimulation
On the basis of the current research, this paper proposes the application of ultrasonic real-time intelligent monitoring of nerve block in postoperative analgesia and applies ultrasonic realtime intelligent monitoring of nerve block in upper limb surgery, lower limb surgery, abdominal surgery, and other aspects combined with the nerve stimulator. e experiments showed that there were 5 cases of adverse reactions when using nerve stimulator alone, but no adverse reactions occurred when combined with ultrasound-guided block
Summary
Postoperative pain mainly concentrated in 24–48 h after operation, and pain itself and its influence on the normal functions of patients’ breathing, circulation, digestion, and other systems were not conducive to the functional recovery of patients after operation [1]. Because of its advantages such as noninvasive and visibility, the localization technology of ultrasound imaging has created conditions for its application in nerve block, significantly improved the success rate, and reduced complications. It can locate accurately and observe the local structure of the target nerve, the travel route, and direction of the puncture needle and the diffusion of the local anesthetic in real time, so as to avoid damaging the nerve tissue. Oral analgesia or patient controlled intravenous analgesia are the main methods used for postoperative analgesia, while oral NSaids and opioids have serious gastrointestinal side effects
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