- Research Article
- 10.5055/jom.0964
Post-operative opioid consumption after single-shot versus continuous erector spinae plane block in cardiac surgery: An observational study.
- Mar 01, 2026
- Journal of opioid management
- Iván Fernando Quintero-Cifuentes + 7 more +7
To compare the efficacy of single-dose anesthetic (SDA) erector spinae plane block (ESPB) versus continuous ESPB via thoracic catheters (CATs) in managing pain and reducing opioid use in cardiac surgery patients. Prospective, observational, longitudinal study. A tertiary-level hospital. A total of 70 patients aged 18 and above undergoing cardiovascular surgery involving sternotomy were included (35 per group). Patients received either a single-dose ESPB with bupivacaine or continuous ESPB via thoracic CATs with automatic intermittent boluses of bupivacaine for 72 hours. Opioid use (primary outcome) was measured in morphine milligram equivalents (MMEs), while pain intensity (secondary outcome) was assessed using the Numeric Rating Scale (NRS). The CAT group demonstrated significantly lower cumulative opioid use at 72 hours (median 12.0 MME [interquartile range {IQR} 9.0-20.0]) compared to the SDA group (median 17.0 MME [IQR 12.0-37.0], p = 0.029). Pain intensity scores on NRS showed no significant differences between groups. Post-operative nausea was less frequent in the CAT group (17.1 percent vs 40.0 percent, p = 0.034). No major complications were observed in either group. Continuous ESPB via thoracic CATs provides superior opioid-sparing effects compared to single-dose ESPB in cardiac surgery patients while maintaining comparable pain relief and safety. This technique may enhance recovery protocols by reducing opioid-associated side effects. Further research is warranted to explore adjuvants and optimize ESPB protocols in cardiac surgery.
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