Effect of Neurostimulator Usage on Block Success

Gaziosmanpasa Research and Education Hospital60 enrolled

Overview

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

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

OTHER

Masking

DOUBLE

Enrollment

Conditions

PATIENTS WITH UPPER EXTREMITY SURGERY

Interventions

fentanyl will be addedDRUG

If adequate anagesia is not provided with the block, 1 microgram/kg of fentanyl will be added

general anesthesiaPROCEDURE

If adequate anagesia is not provided with the block, general anesthesia will be administered.

Eligibility

Sex: ALLMin age: 18 YearsMax age: 80 Years

Medical Language ↔ Plain English

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

Locations (1)

Gazoosmanpasa Education and Research Hospital

Istanbul, Turkey (Türkiye)

Outcomes

Primary Outcomes

The block success rate (ratio of successful blocks to all blocks)

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.

Time frame: during procedure

Secondary Outcomes

Block application time

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

Time frame: 30 minutes

time to readiness for surgery

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.

Time frame: 30 minutes

number of needle passes

. The number of needle passes was calculated by adding each needle advancement exceeding 10 mm to the first needle insertion.

Time frame: 30 minutes

Data from ClinicalTrials.gov

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