Comparison of Ultrasound versus Combined Peripheral Nerve Stimulator Plus Ultrasound-guided Supraclavicular Blocks of Brachial Plexus for Upper Limb Surgeries.

BACKGROUND

Ultrasound (USG)-guided supraclavicular blocks are an asset in the realm of regional anaesthesia. Newer approaches, such as USG plus peripheral nerve stimulator (PNS), have often been indicated for better outcomes.

AIM: The aim of the study was to compare USG versus combined PNS plus USG-guided supraclavicular blocks of brachial plexus for upper limb surgeries.

METHODS

A prospective, comparative study was conducted among 82 participants undergoing upper limb surgeries guided via USG (Group A; n = 41) and guided via USG plus PNS (Group B; n = 41) under supraclavicular brachial plexus block using 15 mL of 0.5% bupivacaine with 10 mL of 2% lignocaine plus adrenaline. Both the groups were assessed for procedure time, onset and duration of sensory and motor blockade and success rate.

RESULTS

The procedure time for the block, onset of motor and sensory block was significantly less for USG-guided block ( P < 0.05). The duration of the block was comparable between the groups. In addition, USG plus PNS-guided blocks had a higher success rate.

CONCLUSION

USG plus PNG-guided blocks experienced a higher success rate than USG-guided blocks. USG-guided supraclavicular blocks had shorter procedure time with faster onset of motor and sensory block, highlighting its potential advantages.