Randomized Controlled Trial
A randomised, controlled, double-blind trial of ultrasound-guided phrenic nerve block to prevent shoulder pain after thoracic surgery.
Anaesthesia. 2016 Dec 1; 71 (12): 1441-1448.
Randomized Controlled Trial
Randomized double-blind comparison of phrenic nerve infiltration and suprascapular nerve block for ipsilateral shoulder pain after thoracic surgery.
Eur J Cardiothorac Surg. 2011 Jul 1;40(1):106-12.
Article
Comparative study on the analgesic effect of acute ipsilateral shoulder pain after open thoracotomy between preoperative ultrasound guided suprascapular nerve block (SNB) and intraoperative phrenic nerve infiltration (PNI) in...
J Egypt Natl Canc Inst. 2018 Mar 1; 30 (1): 27-31.