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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05209490
Other study ID # 4 femoral block without EPN
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date February 1, 2022
Est. completion date June 30, 2022

Study information

Verified date August 2022
Source Mogilev Regional Clinical Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

There is little work comparing the effectiveness of a femoral nerve block performed only under US guidance or US plus electrical stimulation of the peripheral nerve (EPN). The authors have shown the same effectiveness of these techniques(1).But the effectiveness of the blockade of the femoral nerve (complete blockade) performed in different ways turned out to be low valve: 71.7% for ultrasound in combination with electrical stimulation versus 69% for only ultrasound guidance. Research hypothesis: the blockade of the femoral nerve performed only under ultrasound control has the same effectiveness as the blockade performed under the ultrasound control with EPN.


Recruitment information / eligibility

Status Completed
Enrollment 40
Est. completion date June 30, 2022
Est. primary completion date May 31, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years to 90 Years
Eligibility Inclusion Criteria: - indication requiring anesthesia maintenance; - patient's written consent about the type of anesthesia and possible complications of regional anesthesia Exclusion Criteria: - patient's refusal of application for the proposed form of anesthesia; - patients younger than 18 years; - patients weighing less than 50 kg; - a physical status score of more than 3 determined by the American Society of Anesthesiologists (ASA); - a history of allergic reactions to the drugs used; - coagulopathies; - infections of the skin at the injection site; - neurological or neuromuscular diseases; - severe liver diseases or kidney failures; - an inability to cooperate with the patient.

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Femoral nerve blockade under ultrasound control with a peripheral nerve stimulator
Following the ultrasound visualization of the femoral nerve, a insulated injection needle was connected to the nerve stimulator . Under ultrasound visualization guidance, the needle of the electronic nerve stimulator was positioned at the sciatic nerve (in plane) from its lateral side at a slightly superior position . A marker for LA introduction was the visualization of the needle end near the nerve, and a positive muscular response . Subsequently, the introduction of LA solution was initiated.If LA was spreading from the lateral side down to the nerve, then the needle was replaced to the upper point of the nerve and the rest of LA was introduced, and vice versa . The presence of a complete and incomplete spread of LA along the entire circumference of the nerve was assessed. Correspondingly, if the anesthetic was spreading upwardly, the needle would be downwardly replaced. In addition, a sciatic femoral nerve block is performed.
femoral nerve blockade under ultrasound control without a peripheral nerve stimulator
Under ultrasound visualization guidance, the needle owas positioned at the femoral nerve (in plane) from its lateral side at a slightly superior position . A marker for LA introduction was the visualization of the needle end near the nerve. Subsequently, the introduction of LA solution was initiated. The position of the needle was corrected 1-2 times according to the type of anesthetic spread. If LA was spreading from the lateral side down to the nerve, then the needle was replaced to the upper point of the nerve and the rest of LA was introduced, and vice versa . The presence of a complete and incomplete spread of LA along the entire circumference of the nerve was assessed. Correspondingly, if the anesthetic was spreading upwardly, the needle would be downwardly replaced. In addition, a sciatic nerve block is performed.

Locations

Country Name City State
Belarus Mogilev Regional Clinical Hospital Mogilev

Sponsors (1)

Lead Sponsor Collaborator
Mogilev Regional Clinical Hospital

Country where clinical trial is conducted

Belarus, 

References & Publications (1)

Sites BD, Beach ML, Chinn CD, Redborg KE, Gallagher JD. A comparison of sensory and motor loss after a femoral nerve block conducted with ultrasound versus ultrasound and nerve stimulation. Reg Anesth Pain Med. 2009 Sep-Oct;34(5):508-13. doi: 10.1097/AAP.0b013e3181ae7306. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Other The need for additional pain relief during surgery The need for additional use of narcotic analgesics or local anesthesia during surgery (criterion-reporting of painful feelings during the operation). Based on the patient's complaint about pain of any intensity during the operation. During the operation (start of operation - end of operation)
Primary ?omplete sensory femoral nerve block The stimulus of the needle prick was applied to check the sensory block of thefemoral nerve. The assessment of skin sensitivity was carried out with the help of a similar scale: + +\ indicating a complete sensory block; +\ indicating a partial sensory block, a patient was unable to differentiate between the type of stimuli ; and -\ indicating that the skin sensitivity was fully preserved. The quality of sensory blocks was assessed after 45 minutes of administration of the sciatic nerve block. The evaluation of the block was carried out by an anesthesiologist who was not involved in the study, and was blinded to solution that had been
Secondary ?omplete motor femoral nerve block The assessment of the motor block was carried out with the help of the following scale: + +\ which indicated that movements were completely absent; +\ which indicated that movements were partially preserved or were uncoordinated; and -\ which indicated that movements were fully preserved. The quality of motor blocks was assessed after 45 minutes of administration of the sciatic nerve block. The evaluation of the block was carried out by an anesthesiologist who was not involved in the study, and was blinded to solution that had been
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