Diaphragm-sparing efficacy of subparaneural upper trunk block for arthroscopic shoulder surgery: A randomised controlled trial
Authors' conclusion
UTB was associated with a lower incidence of HDP compared with ISB while providing excellent analgesia in arthroscopic shoulder surgery.
Study context
- Population
- Patients aged 20 to 80 years undergoing arthroscopic rotator cuff repair, tertiary teaching hospital
- Participants
- 70 patients
- Comparison
- Ultrasound-guided upper trunk block (UTB) vs inter-scalene block (ISB) with 5 ml 0.75% ropivacaine
- UTBn = 34
- ISBn = 36reference
- Primary endpoint
- Incidence of complete hemi-diaphragmatic paresis (ultrasound diaphragm excursion decrease to ≤25% of baseline or paradoxical movement)
Methodological detailssingle-centre
- Single-centre
Primary result
As reported in the abstract
Absolute difference
35.8%
95% CI 17.8–53.7%
P < 0.001
Events by treatment group
UTB vs ISB
absolute difference 35.8% (95% CI 17.8–53.7%); P < 0.001
Secondary outcomes
Median
| Outcome | UTB | ISB | Median difference (95% CI) | |
|---|---|---|---|---|
| Pain score · 1 h postoperatively | 1 | 0 | −1 (−2 to 0.5) | |
| −3−2−101Difference (linear scale) |
Postblockade decline in pulmonary function
- More pronounced in the ISB group than in the UTB group
Other secondary outcomes (opioid consumption, pain-related outcomes)
- No significant difference
Original publication
Diaphragm-sparing efficacy of subparaneural upper trunk block for arthroscopic shoulder surgery: A randomised controlled trial. Eur J Anaesthesiol. Published 3 July 2024. doi:10.
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