Regional anesthesia
-
Regional anesthesia · Mar 1995
Randomized Controlled Trial Clinical TrialAlkalinization of mepivacaine improves the quality of motor block associated with interscalene brachial plexus anesthesia for shoulder surgery.
Interscalene block has produced appropriate anesthesia for shoulder surgery. Success is partly determined by the quality of motor block achieved. This study was designed to evaluate the influence of alkalinization of mepivacaine on the quality of motor block achieved with interscalene brachial plexus anesthesia. ⋯ Alkalinization of mepivacaine improves the quality of motor block after interscalene brachial plexus block for shoulder surgery.
-
Regional anesthesia · Jan 1995
Randomized Controlled Trial Clinical TrialContinuous high thoracic epidural administration of morphine with bupivacaine after thoracotomy.
The purpose of the study is to determine the ideal concentration of morphine when given with bupivacaine as a continuous high thoracic epidural infusion for postthoracotomy pain. ⋯ Continuous high thoracic epidural administration 0.2 mg/mL morphine in bupivacaine 0.75% at an infusion rate of 0.8 mL/hr with a loading dose of 1 mg morphine is an effective dose for postthoracotomy pain relief in rest, and more important, during exercise.
-
Regional anesthesia · Jan 1995
Randomized Controlled Trial Clinical TrialAddition of clonidine to epidural morphine enhances postoperative analgesia after cesarean delivery.
The randomized, double-blind, dose-response study was designed to evaluate the effects of the addition of clonidine to epidural morphine on postoperative analgesia and side effects in patients undergoing cesarean delivery. ⋯ A low dose of clonidine such as 75 micrograms doubled the duration of analgesia produced by 2 mg of morphine and a dose of 150 micrograms further increased the duration of postoperative complete analgesia without increasing the incidence of side effects. The morphine requirements during the postoperative period (36 hours) was greatly reduced by the addition of clonidine to the analgesic epidural mixture.
-
Regional anesthesia · Nov 1994
Randomized Controlled Trial Clinical TrialEpidural catheters for obstetrics. Terminal hole or lateral eyes?
Controversy exists over the choice of the ideal epidural catheter for obstetric use, particularly whether the catheter should have a single terminal hole or three lateral eyes. ⋯ The use of terminal eye epidural catheters in our obstetric patients has led to an unacceptably high incidence of both unsatisfactory blocks and catheter replacement. Lateral eye catheters produced better results in our circumstances.
-
Regional anesthesia · Sep 1994
Randomized Controlled Trial Comparative Study Clinical TrialDifferential epidural block. Does the choice of local anesthetic matter?
It is well established that spinal anesthesia results in a differential block to the sensations of pinprick and cold temperature discrimination. However, the existence of differential block during epidural anesthesia has not always been accepted. Recently, it has been shown that lumbar epidural anesthesia with chloroprocaine and lidocaine produces a differential block to pinprick and cold sensation. The purpose of this study was to determine if the choice of local anesthetic used for epidural anesthesia has any influence on the relative levels of anesthesia, analgesia, and cold sensation. ⋯ This study reaffirms the existence of differential sensory block during epidural anesthesia and establishes that the observed differential block appears to be independent of the local anesthetic used.