Clinical trial NCT06493643: Peripheral Perfusion Index as a Predictor of Successful Supraclavicular Brachial Plexus Block
Official title: Peripheral Perfusion Index as a Predictor of Successful Supraclavicular Brachial Plexus Block in Patients Undergoing Hand Surgeries
Study type: OBSERVATIONAL
Overall status: NOT_YET_RECRUITING
Conditions: Perfusion Index
Keywords: Supraclavicular block
Brachial plexus block
Perfusion index ( PI )
Lead sponsor: Ain Shams University
Sponsor class: OTHER
First posted: 2024-07-10
Enrollment: 43
Sex: ALL
Minimum age (years): 15
Maximum age (years): 60
Standard ages: CHILD
ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: PROBABILITY_SAMPLE
Study population: All patients undergoing elective hand surgeries at El-demerdash Hospital of Surgery during the study period.

Brief summary: Aim of the study is to determine the best cut off value for the PI and PI ratio for predication of successful supraclavicular brachial plexus block in young and middle age patients undergoing hand surgeries .

Detailed description: * The supraclavicular nerve block was performed under guidance of a linear transducer (8-14 MHz; Acuson x300; Siemens Healthcare, Seoul, Korea) over the supraclavicular fossa in the coronal oblique plane immediately superior to the midclavicular point. The block was induced in the semi-sitting position, with the head of the patient turned away from the side to be blocked.
* The PI was measured using Masimo SET pulse oximeter, applied on the index finger. The PI was recorded at baseline and at 10, 20, and 30min after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb using two separate oximeters.
* The PI ratio was calculated as the ratio between the PI at 10min after injection and the baseline PI. In every patient, a comparison between the blocked and unblocked limb was performed.
* PI was recorded at baseline and at 10, 20, and 30 min after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb.
* PI ratio was calculated as the ratio between the PI at 10 min after injection and the baseline PI.
* Vital data (Blood pressure, Heart rate, SPO2) was recorded before giving the block and at 10, 20, and 30 min after local anaesthetic injection and at the end of the operation.

Eligibility criteria: Inclusion Criteria:

* Adult patients aging between 15_ 60 years of both sexes.
* Patients undergoing Elective hand Surgeries under successful supraclavicular brachial plexus block anesthesia.
* American Society of Anesthesiologists (ASA) physical status classes I - II.

Exclusion Criteria:

* Patient's refusal of procedure or participation in the study.
* ASA classes III or above.
* Coagulopathy and bleeding disorders.
* Contraindications to supraclavicular brachial plexus block anesthesia such as local infection.
* Hypersensitivity to the study medications.
* Diabetes mellitus.
* Peripheral vascular disease.
* Emergency surgeries.

Primary outcomes:
measure: Cut off value for perfusion index ( PI ) for predication of successful supraclavicular brachial plexus block.
timeFrame: Perfusion index (PI) was recorded at baseline and at 10, 20, and 30 minutes after local anaesthetic injection in both the blocked limb and the contralateral unblocked limb.
measure: Cut off value for perfusion index (PI) ratio for predication of successful supraclavicular brachial plexus block.
timeFrame: Perfusion index ( PI ) ratio was recorded at baseline and 10 minutes after local anaesthetic injection
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
References: