Effect of Neurostimulator Usage on Block Success

Not Applicable

Completed

• Conditions: PATIENTS WITH UPPER EXTREMITY SURGERY
• Interventions: Drug: fentanyl will be added; Procedure: general anesthesia

• Registration Number: NCT05706090
• Lead Sponsor: Gaziosmanpasa Research and Education Hospital

Brief Summary

The need of a neurostimulator for a successful nerve block was questioned in different block types after ultrasound has become standard. The aim of this clinical study was to determine the effect of neurostimulator use on block success in costoclavicular block

Detailed Description

Not available

Study Timeline

• Study Start: 2020-02-01
• Primary Completion: 2020-02-01
• Study Completion: 2021-01-02
• Study First Submitted: 2022-12-20
• Status Verified: 2023-01
• Study First Submitted QC: 2023-01-20
• Last Update Submitted: 2023-01-20
• Study First Posted: 2023-01-31
• Last Update Posted: 2023-01-31

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• Class I, II and III of American Society of Anesthesiologists (ASA) classification
• being between 18 and 80 years of age,
• body mass index (BMI) between 18 and 35 kg/m2

Exclusion Criteria

• Patients who did not give consent,
• were above ASA III,
• pregnant,
• had a neuromuscular disease,
• bleeding diathesis,
• a local anesthetic allergy,
• an infection in the area where nerve block would be applied, and
• had previously operated from the infraclavicular fossa were not included in the study

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Group USPN	fentanyl will be added	The group using ultrasound , injection pressure manometer , and neurostimulator was named USPN
Group USP	general anesthesia	The group using ultrasound and injection pressure manometer was named USP
Group USPN	general anesthesia	The group using ultrasound , injection pressure manometer , and neurostimulator was named USPN
Group USP	fentanyl will be added	The group using ultrasound and injection pressure manometer was named USP

Primary Outcome Measures

Name	Time	Method
The block success rate (ratio of successful blocks to all blocks)	during procedure	The block was considered unsuccessful in case of analgesic need during the surgery or transition to general anesthesia, otherwise, these patients were included in the successful block group.

Secondary Outcome Measures

Name	Time	Method
time to readiness for surgery	30 minutes	Sensory and motor block levels were evaluated in the median, radial, ulnar and musculocutaneous nerve traces at 5-minute intervals for 30 minutes. An ice pack was used for sensory block evaluation. It was scored as follows; 0: completely felt; 1: has a sense of touch; no cold; 2: no sense of touch. Lateral surface of the forearm for the musculocutaneous nerve, the surface of the thumb facing the palm for the median nerve, the inner surface of the 5th finger for the ulnar nerve, and the posterior surface of the hand for the radial nerve were used for sensorial evaluation. Motor block was scored as follows; 0: full motion; 1: paresis; 2: complete block. Elbow flexion for the musculocutaneous nerve, thumb opposition for the median nerve, 5th finger abduction for the ulnar nerve, and wrist extension for the radial nerve were used to evaluate motor block. The block was considered successful if the total score was 14 or higher, with a total sensory score of at least 7.
Block application time	30 minutes	THE TIME BETWEEN THE NEEDLE ENTRY THROUGH THE SKIN AND THE OUTPUT OF THE NEEDLE AFTER LOCAL ANESTHETICS IS GIVEN, WAS RECORDED AS THE APPLICATION TIME
number of needle passes	30 minutes	. The number of needle passes was calculated by adding each needle advancement exceeding 10 mm to the first needle insertion.

Trial Locations

Locations (1)

Gazoosmanpasa Education and Research Hospital; 🇹🇷 Istanbul, Turkey