An interventional study of NS-guided interscalene block and US-guided interscalene block in Pain, sponsored by Cheju Halla General Hospital. Completed at 1 site in Korea, Republic of. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2017-07-17.
Sponsored by Cheju Halla General Hospital · Not applicable, Interventional, and Treatment
The investigators compared the postoperative analgesia of nerve stimulator-guided and ultrasound-guided interscalene block after shoulder surgery.
Ultrasound (US)-guided peripheral nerve block has increased in popularity. It has many advantages such as improved success rate, faster onset time, fewer needle passes, shorter performance time, and reduced procedural pain and vascular puncture. However, there is no information about postoperative analgesia.
Therefore, the investigators tested whether nerve stimulator (NS) - guided interscalene block was inferior to ultrasound-guided block in terms of duration of postoperative analgesia for shoulder surgery.
Cheju Halla General Hospital is the lead sponsor of 7 studies on the registry; none are open to participants now.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
NS-guided interscalene block is performed using 20 ml of 0.75% ropivacaine.
Procedure: NS-guided interscalene block
US-guided interscalene block is performed using 20 ml of 0.75% ropivacaine.
Procedure: US-guided interscalene block
Patients received a standard single injection interscalene block using the modified lateral approach of Borgeat. The interscalene brachial plexus was identified using an insulated needle connected to a nerve stimulator. An insulated needle attached to a nerve stimulator was used to identify the brachial plexus. Placement of the needle was considered adequate if the deltoid, triceps, pectoralis, or biceps muscle motor response was still present at 0.2 - 0.5mA. Ropivacine 0.75% 20ml was used.
Interscalene block is performed under ultrasound guidance. Linear probe is placed on the ipsilateral interscalene groove visualizing the brachial plexus located between anterior and middle scalene muscles. Using in-plane technique, an insulated needle is advanced into the brachial plexus sheath, into which 20 ml of 0.75% ropivacaine is injected
duration of postoperative analgesia
time from completion of local anesthetic injection until the first request for an analgesic
Time frame: at 24h after surgery
onset time (complete block of sensory and motor nerve)
complete block of sensory and motor nerve
Time frame: until 30min after completion of local anesthetic
patient discomfort (pain score (0 -10) during the procedure)
pain score (0 -10) during the procedure
Time frame: at 30 min after block placement
block performance time (the time between the block needle insertion and needle withdrawal)
the time between the block needle insertion and needle withdrawal.
Time frame: at 30 min after block placement
The number of needle redirections
either forward or backward movement of needle at least 1 cm or more
Time frame: at 30 min after block placement
paresthesia (presence of paresthesia during the procedure)
presence of paresthesia during the procedure
Time frame: at 30 min after block placement
motor block of hand
degree of motor block in the operated hand
Time frame: at 30 min after block placement
paresthesia of hand
presence of paresthesia in the operated hand
Time frame: at 30 min after block placement
Supplemental analgesia
Time frame: at 24h after surgery
Pain score
numerical rating scale (0 - 10)
Time frame: at 24h after surgery
Patient satisfaction
Patient satisfaction was evaluated using a two-point score: 1, satisfactory (if necessary, I would have the same anesthetic technique); and 2, unsatisfactory (different anesthetic technique).
Time frame: at 24h after surgery
Plan to share: Yes
This study is completed, as verified in Jul 2017. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Cheju Halla General Hospital