Nerve Block
Conditions
Keywords
Ultrasound-Guided Plane Block, Conventional Block
Brief summary
For superficial surgery of anteromedial and posteromedial surfaces of the upper arm, the medial brachial cutaneous nerve (MBCN) and the intercostobrachial nerve (ICBN) must be selectively blocked, in addition to an axillary brachial plexus block. We compared efficacy of ultrasound-guided (USG) versus conventional block of the MBCN and the ICBN.
Detailed description
The primary objective of our study was to compare the effectiveness of conventional and USG blocks of the MBCN and the ICBN in the axillary fossa. Our hypothesis was that the proportion of patients with complete anesthesia in the entire posteromedial and anteromedial surface of the arm would be greater if a USG technique were used, compared with a conventional technique. The secondary objectives were onset time of complete anesthesia, volume of local anesthetic used for the procedure, tourniquet tolerance during surgery, and ultrasound visibility of MBCN and ICBN.
Interventions
PROCEDUREUltrasound-Guided Plane Block
Ultrasound-Guided Plane Block Medial Brachial Cutaneous and the Intercostobrachial Nerves
PROCEDUREConventional Block
Conventional Block Medial Brachial Cutaneous and the Intercostobrachial Nerves
Sponsors
Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes
Inclusion criteria
* Surgery of the distal upper limb : hand, forearm, lower third of the arm ,including the elbow * Urgent or planned surgery * Locoregional anesthesia : axillary brachial plexus block, completed by a medial brachial cutaneous nerve block and an intercostobrachial nerve block
Exclusion criteria
* Refused to sign informed consent * Pregnant women * Allergic to the local anesthetic
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of participants with complete anesthesia | At time 20 minutes after the medial brachial cutaneous nerve and the intercostobrachial nerve block | Number of participants with complete anesthesia of the arm in region innervated by the MBCN and the ICBN |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Volume of local anesthetic | After nerve block immediately | The volume (in milliliters) of 1% lidocaine used for the medial brachial cutaneous nerve and the intercostobrachial nerve block |
| Tourniquet tolerance | 3 hours after the achievement of the medial brachial cutaneous nerve block and the intercostobrachial nerve block | Number of patients with comfortable feeling, with unpleasant sensations and with pains during surgery, in the areas of the medial brachial cutaneous nerve and the intercostobrachial nerve |
| Number of participants with complete anesthesia, with reduced sensitivity and with absence of anesthesia | At times 5, 10, 15, 20 minutes after the achievement of the medial brachial cutaneous nerve block and the intercostobrachial nerve block | Number of participants with complete anesthesia, with reduced sensitivity and with absence of anesthesia at times 5, 10, 15, 20 minutes (except primary outcome) in the areas of the medial brachial cutaneous nerve and the intercostobrachial nerve |
| Bad ultrasound view of theses nerves before the injection and good ultrasound view of theses nerves after the injection of the local anesthetic | 5 minutes after the achievement of the medial brachial cutaneous nerve block and the intercostobrachial nerve block | Number of participants (of the ultrasound-guided group) with bad ultrasound view of theses nerves before the injection and good ultrasound view of theses nerves after the injection of the local anesthetic |
| Bad ultrasound view of theses nerves before and after the injection of the local anesthetic | 5 minutes after the achievement of the medial brachial cutaneous nerve block and the intercostobrachial nerve block | Number of participants (of the ultrasound-guided group) with bad ultrasound view of theses nerves before and after the injection of the local anesthetic |
| Good ultrasound view of theses nerves before and after the injection of the local anesthetic | 5 minutes after the achievement of the medial brachial cutaneous nerve block and the intercostobrachial nerve block | Number of participants (of the ultrasound-guided group) with good ultrasound view of theses nerves before and after the injection of the local anesthetic |
Countries
China
Outcome results
None listed