USG Block of Cutaneous Nerves of the Arm

Nerve Block Clinical Trial

Official title:

Ultrasound-Guided Plane Versus Conventional Block of the Medial Brachial Cutaneous and the Intercostobrachial Nerves：A Retrospective Observational Study

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT03928574
• Other study ID #: 2019CZTCWM1
• Status: Completed
• Start date: April 1, 2019
• Est. completion date: July 1, 2021

Study information

• Verified date: April 2019
• Source: Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial 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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 200
• Est. completion date: July 1, 2021
• Est. primary completion date: May 1, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 65 Years

Eligibility

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

Related Conditions & MeSH terms

• Nerve Block

Intervention

Procedure:
• Ultrasound-Guided Plane Block
Ultrasound-Guided Plane Block Medial Brachial Cutaneous and the Intercostobrachial Nerves
• Conventional Block
Conventional Block Medial Brachial Cutaneous and the Intercostobrachial Nerves

Locations

Country	Name	City	State
China	Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine	Cangzhou	Hebei

Sponsors (1)

Lead Sponsor	Collaborator
Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Number of participants with complete anesthesia	Number of participants with complete anesthesia of the arm in region innervated by the MBCN and the ICBN	At time 20 minutes after the medial brachial cutaneous nerve and the intercostobrachial nerve block
Secondary	Number of participants with complete anesthesia, with reduced sensitivity and with absence of anesthesia	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	At times 5, 10, 15, 20 minutes after the achievement of the medial brachial cutaneous nerve block and the intercostobrachial nerve block
Secondary	Volume of local anesthetic	The volume (in milliliters) of 1% lidocaine used for the medial brachial cutaneous nerve and the intercostobrachial nerve block	After nerve block immediately
Secondary	Tourniquet tolerance	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	3 hours after the achievement of the medial brachial cutaneous nerve block and the intercostobrachial nerve block
Secondary	Good ultrasound view of theses nerves before and after the injection of the local anesthetic	Number of participants (of the ultrasound-guided group) with 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
Secondary	Bad ultrasound view of theses nerves before the injection and good ultrasound view of theses nerves after the injection of the local anesthetic	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	5 minutes after the achievement of the medial brachial cutaneous nerve block and the intercostobrachial nerve block
Secondary	Bad ultrasound view of theses nerves before and after the injection of the local anesthetic	Number of participants (of the ultrasound-guided group) with 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