Clinical trial NCT06475638: Brachial Artery Pulsatility Index in Supraclavicular Block
Official title: Evaluation of Brachial Artery Pulsatility Index As a Predictor of Successful Supraclavicular Block: a Prospective Observational Study
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Brachial Plexus Anesthesia
Diagnostic Accuracy
Keywords: pulsatility index
successful block
resistive index
Lead sponsor: Cairo University
Sponsor class: OTHER
First posted: 2024-06-26
Enrollment: 89
Sex: ALL
Minimum age (years): 18
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: adult patient, ASA 1 and will receive supraclavicular brachial plexus block for forearm or hand surgery

Brief summary: Investigators aimed to evaluated accuracy of brachial artery doppler derived indices such as change in pulsatility index, resistive index, and waveform morphology in predicting successful supraclavicular block

Detailed description: supraclavicular brachial plexus block gives adequate anesthesia and analgesia for arm and hand surgeries. successful block was classically evaluated via assessment of both sensory and motor functions, However this carry disadvantages of subjective assessment including patient cooperation. objective monitors of successful block depend on sympasthetic mediated changes including perfusion index, thermography, and LASER doppler.

However most of these tools depend on complicated technology and special devices.

therefore it was assumed that the use of brachial artery derived indices such as pulsatility index, resistive index, and waveform morphology would provide simple, easy and economic assessment tool for successful supraclavicular brachial plexus block

Eligibility criteria: Inclusion Criteria:

- ASA 1 undergoing forearm or hand surgery

Exclusion Criteria:

* patient refusal allergy to local anesthetics fracture humerus Diabetes Melitus peripheral vascular disease

Primary outcomes:
measure: the change in pulsatility index as a predictor to successful supraclavicular block
timeFrame: baseline and at 5 minutes interval after block for 30 minutes
Secondary outcomes:
measure: change in resistive index as a predictor for successful block
timeFrame: baseline then at 5 minutes interval for 30 minutes
measure: change in waveform morphology as a predictor to successful block
timeFrame: baseline and within 10 minutes of block
Other outcomes:
Locations:
city: Cairo
country: Egypt
facility: Cairo University
Study officials:
References:
citation: Gamo K, Kuriyama K, Higuchi H, Uesugi A, Nakase T, Hamada M, Kawai H. Ultrasound-guided supraclavicular brachial plexus block in upper limb surgery: outcomes and patient satisfaction. Bone Joint J. 2014 Jun;96-B(6):795-9. doi: 10.1302/0301-620X.96B6.31893.
citation: Abdelnasser A, Abdelhamid B, Elsonbaty A, Hasanin A, Rady A. Predicting successful supraclavicular brachial plexus block using pulse oximeter perfusion index. Br J Anaesth. 2017 Aug 1;119(2):276-280. doi: 10.1093/bja/aex166.
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