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Ultrasound-controlled cryoneurolysis for peripheral mononeuropathies: a retrospective cohort study
Zdenek Nemecek1, Constanze Sturm2, Anna C Rauen1
1Department of Anesthesiology & Pain Medicine, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
Pain Management
|July 10, 2023
Summary
Cryoneurolysis offers pain relief for peripheral mononeuropathy patients. While initial pain reduction is significant, longer-term effects require further study, suggesting repeated treatments may be beneficial.
Area of Science:
- Neurology
- Pain Management
- Interventional Procedures
Background:
- Peripheral mononeuropathies can cause significant pain and disability.
- Cryoneurolysis is an emerging therapy for neuropathic pain.
- Limited randomized data exists on the duration of pain relief from cryoneurolysis.
Purpose of the Study:
- To evaluate the analgesic efficacy and duration of cryoneurolysis in patients with refractory peripheral mononeuropathy.
- To assess pain reduction at 1, 3, and 6 months post-procedure.
Main Methods:
- Retrospective cohort study of 24 patients with refractory peripheral mononeuropathy.
- Ultrasound-guided cryoneurolysis procedure.
- Pain levels assessed using a numerical rating scale before and at 1, 3, and 6 months after treatment.
Main Results:
- 54.2% of patients experienced at least 30% pain reduction at 1 month post-cryoneurolysis.
- Sustained pain reduction was observed in a smaller percentage of patients at 3 months (13.8%) and 6 months (9.1%).
Conclusions:
- Cryoneurolysis demonstrates initial analgesic effects for refractory peripheral mononeuropathy.
- The duration of pain relief may be limited, suggesting the potential benefit of repeated cryoneurolysis treatments.
- Further research, including randomized controlled trials, is warranted to confirm these findings and optimize treatment protocols.
