Long-Term Analgesic Efficacy of Neurolytic Splanchnic Nerve Block via the Transintervertebral Disc Approach to Retrocrural Space: A Multicenter Retrospective Study
Introduction The celiac plexus block is effective for treating intractable cancer pain and has been the focus of many studies. At our affiliated institution, fluoroscopy-guided splanchnic nerve block with a single needle via the transintervertebral disc approach was the first choice of treatment. Th...
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Veröffentlicht in: | Pain and Therapy 2023-06, Vol.12 (3), p.825-840 |
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Sprache: | eng |
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Zusammenfassung: | Introduction
The celiac plexus block is effective for treating intractable cancer pain and has been the focus of many studies. At our affiliated institution, fluoroscopy-guided splanchnic nerve block with a single needle via the transintervertebral disc approach was the first choice of treatment. The short-term efficacy of this technique has been reported, but the long-term efficacy is not clear. In the present study, we investigated the long-term analgesic efficacy of this technique.
Methods
This multicenter, retrospective, observational study reviewed the medical records of patients who underwent neurolytic splanchnic nerve block (NSNB) via the transintervertebral disc approach for intractable cancer pain at five tertiary hospitals in Japan from April 2005 to October 2020. The primary outcome was the long-term analgesic efficacy of a one-time NSNB via the transintervertebral disc approach.
Results
In total, 76 patients were included in the analysis. The median lowest numerical rating scale (NRS) score was 1 within 14 days. At 1, 2, 3, and 6 months after the nerve block, the median NRS score was also ≤ 2, while the median equivalent oral morphine dose did not show any clinically noticeable increase at those times.
Conclusion
The long-term analgesic efficacy of NSNB via the transintervertebral disc approach in patients with intractable cancer pain has been demonstrated.
Plain Language Summary
The celiac plexus block is effective for treating intractable cancer pain and has been the focus of many studies. The celiac plexus nerve block relieves intractable cancer pain arising from the pancreas or other organs in close proximity, and the splanchnic nerve block is considered clinically equivalent to the celiac plexus block for analgesia. At our affiliated institution, fluoroscopy-guided neurolytic splanchnic nerve block with a single needle via the transintervertebral disc approach is the first choice of treatment because it is technically simpler and less invasive than other approaches. While the short-term efficacy of this technique is known, its long-term efficacy remains unclear. Thus, this multicenter, retrospective, observational study aimed to investigate the long-term analgesic efficacy of a neurolytic splanchnic nerve block via the transintervertebral disc approach. The medical records of patients in whom intractable cancer pain was managed using this technique at five tertiary hospitals in Japan were analyzed. The primary outcome was the long-term an |
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ISSN: | 2193-8237 2193-651X |
DOI: | 10.1007/s40122-023-00506-0 |