METHODS: A prospective, double-blinded randomized controlled trial comparing the post-operative pain score between BSCPB and LWI was conducted among patients undergoing thyroid surgery. Ropivacaine 0.50% was used in the study. Pain score was measured at 4, 12, 16 and 24 h after surgery using the visual analog scale (VAS). Subcutaneous injection of Tramadol was given whenever the pain score was ≥4 or requested by patients.
RESULTS: A total of 70 patients were recruited, with 35 patients on each arm. There was no statistical difference in the post-operative pain score between the two groups at 4 h (p = 0.208), 12 h (p = 0.860), 16 h (p = 0.376) and 24 h (p = 0.375) after surgery. Time to the first rescue dose of Tramadol between the two arms was also insignificant (p = 0.949). One patient in the BSCPB arm developed transient left upper limb weakness, which resolved 12 h after surgery.
CONCLUSION: LWI remains the simplest, safest and most economical method of pain management. While BSCPB is comparable, it does however, come with potential regional block related complications.
METHODS: Two middle-aged women with vagal paraganglioma undergoing an excision operation underwent immediate selective laryngeal reinnervation using the phrenic nerve and ansa cervicalis as the donor nerve. Multidimensional outcome measures were employed pre-operatively, and at 1, 6 and 12 months post-operatively.
RESULTS: The voice handicap index-10 score improved from 23 (patient 1) and 18 (patient 2) at 1 month post-operation, to 5 (patient 1) and 1 (patient 2) at 12 months. The Eating Assessment Tool 10 score improved from 20 (patient 1) and 24 (patient 2) at 1 month post-operation, to 3 (patient 1) and 1 (patient 2) at 12 months. There was slight vocal fold abduction observed in patient one and no obvious abduction in patient two.
CONCLUSION: Selective reinnervation is safe to perform following vagal paraganglioma excision conducted on the same side. Voice and swallowing improvements were demonstrated, but no significant vocal fold abduction was achieved.