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Efficacy of ultrasound-guided erector spinae plane block versus paravertebral block for postoperative analgesia in single-port video-assisted thoracoscopic surgery: a retrospective st

April 22, 2022

Thoracic paravertebral block (TPVB) is an analgesic method recommended in the enhanced recovery after surgery (ERAS) protocol and proven successful in thoracoscopic surgery. The study aimed to investigate whether the erector spinae plane block (ESPB) administered single-injection in uniportal video- assisted thoracoscopic surgery (VATS) can be an alternative to TPVB as an analgesic method.
In this study, American Society of Anesthesiologists (ASA) physical status class I-II-III patients aged between 18–70 years who underwent thoracoscopic wedge resection surgery were analyzed retrospectively; 136 patients in the ESPB group and 114 patients in the TPVB group were included in the study. Postoperative cumulative morphine consumption numerical rating scale (NRS) scores were compared at 1, 6, 12, and 24 hours after surgery at rest and during coughing between the groups. Also, rescue analgesia requirements, postoperative nausea, vomiting and other complications were evaluated
The mean cumulative morphine consumption in the postoperative 24 hours was 20.06 mg in the ESPB group and 11.35 mg in the TPVB group. A statistically significant difference was observed between groups in terms of total morphine consumption in the postoperative 24 hours (P<0.001). NRS score was significantly lower in the TPVB group at postoperative 6th and 24th hours during coughing (P=0.003 and P=0.034, respectively) and at 24th hour at rest (P=0.008) than ESPB group. Median NRS scores at rest were low (<4) in both groups. There was no significant difference between the groups in terms of postoperative pulmonary complications as atelectasis and length of hospital stay (LOS) (P=0.643 and P=0.867 respectively). Conclusions:
Ultrasound (US)-guided single-injection TPVB provided superior analgesia in patients undergoing single-port VATS than ESPB. In addition to this, TPVB showed more opioid sparing by reducing morphine consumption.
Thoracic paravertebral block (TPVB); erector spinae plane block (ESPB); numerical rating scale (NRS); video-assisted thoracoscopic surgery (VATS); postoperative pain.