Peripheral Perfusion Index as a Predictor of Successful Supraclavicular Brachial Plexus Block
- Conditions
- Perfusion Index
- Interventions
- Other: Measurement of perfusion index after supraclavicular brachial plexus block at blocked & unblocked limb
- Registration Number
- NCT06493643
- Lead Sponsor
- Ain Shams University
- 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.
Recruitment & Eligibility
- Status
- NOT_YET_RECRUITING
- Sex
- All
- Target Recruitment
- 43
- 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.
- 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.
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Perfusion index at the blocked & unblocked limb Measurement of perfusion index after supraclavicular brachial plexus block at blocked & unblocked limb The Perfusion Index 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 using two separate oximeters. In every patient , a comparison between the blocked and unblocked limb was performed .
- Primary Outcome Measures
Name Time Method Cut off value for perfusion index ( PI ) for predication of successful supraclavicular brachial plexus block. 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. 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.
Cut off value for perfusion index (PI) ratio for predication of successful supraclavicular brachial plexus block. Perfusion index ( PI ) ratio was recorded at baseline and 10 minutes after local anaesthetic injection Perfusion index (PI) ratio was calculated as the ratio between the PI at 10 minutes after injection and the baseline PI.
- Secondary Outcome Measures
Name Time Method