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Erector spinae plane block at lower thoracic level for analgesia in lumbar spine surgery: A randomized controlled
Jing-Jing Zhang1, Teng-Jiao Zhang1, Zong-Yang Qu1
1Department of Anesthesiology, Beijing Hospital, National Center of Gerontology, Beijing 100730, China.
Background:
Patients undergoing lumbar spine surgery usually suffer severe pain in the postoperative period. The erector spinae plane block (ESPB), first published in 2016, can anesthetize the ventral and dorsal rami of thoracic nerves and produce an extensive multi-dermatomal sensory block.
Aim:
To assess whether bilateral ultrasound-guided ESPB at a lower thoracic level could improve pain control and quality of recovery in patients undergoing lumbar spine surgery.
Methods:
A total of 60 patients aged 18-80 years scheduled to undergo lumbar spine surgery with general anesthesia were randomly assigned to two groups: ESPB group (preoperative bilateral ultrasound-guided ESPB at T10 vertebral level) and control group (no preoperative ESPB). Both groups received standard general anesthesia. The main indicator was the duration to the first patient controlled intravenous analgesia (PCIA) bolus.
Results:
In the ESPB group, the duration to the first PCIA bolus was significantly longer than that in the control group (h) [8.0 (4.5, 17.0) vs 1.0 (0.5, 6), P < 0.01], and resting and coughing numerical rating scale (NRS) scores at 48 h post operation were significantly lower than those in the control group (P < 0.05). There was no significant difference between the two groups regarding resting and coughing NRS scores at 24 h post operation. Sufentanil consumption during the operation was significantly lower in the ESPB group than in the control group (P < 0.01), while there was no significant difference between the two groups regarding morphine consumption at 24 or 48 h post operation. In the ESPB group, Modified Observer's Assessment of Alertness/Sedation score within 20 min after extubation was higher and duration in the post-anesthesia care unit was shorter than those in the control group (P < 0.01).
Conclusion:
In patients undergoing lumbar spine surgery, ultrasound-guided ESPB at a lower thoracic level improves the analgesic effect, reduces opioid consumption, and improves postoperative recovery.
