Ultrasound-guided erector spinae block versus mid-transverse process to pleura block for postoperative analgesia in lumbar spinal surgery

Postoperative Analgesic Efficacy of Erector Spinae Plane Block in Patients Undergoing Lumbar Spinal Surgery: A Systematic Review and Meta-Analysis

“…We carefully evaluated the remaining 12 studies by reading the full text to determine whether they were eligible. Six studies were further excluded for the following reasons: studies were reviews and case reports (n = 2) [11,12], retrospective study (n = 1) [13], compared ESPB with other types of regional blocks (n = 2) [14,15], and an ongoing trial (n = 1) [16]. Finally, six studies [8,[17][18][19][20][21] satisfied the inclusion criteria and were used for the meta-analysis.…”

“…ESPB was performed between T10 and L3. Four studies [8,[19][20][21] used bupivacaine as a local anesthetic, while two studies used ropivacaine. The concentration of the local anesthetics ranged from 0.025 to 0.5%.…”

“…The concentration of the local anesthetics ranged from 0.025 to 0.5%. PCIA was used to relieve postoperative pain in five trials [8,17,18,20,21]. Detailed information regarding studies included in the meta-analysis is presented in Table 1.…”

“…Four studies [8,17,19,21] explicitly reported the method of random sequence generation, and three studies [17,18,20] described allocation concealment. None of the studies described the blinding of participants and personnel.…”

Erector spinae plane block for spinal surgery: a systematic review and meta-analysis

“…A total of 696 patients were enrolled in this systematic review and meta-analysis: 348 in the ESPB group (patients administered ESPB) and the remaining 348 in the control group (patients administered no block or a sham block). Eleven trials [ 13 - 16 , 18 - 24 ] reported the performance of ESPB before the surgery via ultrasound guidance and one trial [ 17 ] via intraoperative freehand administration. Four studies [ 15 , 16 , 20 , 23 ] confirmed the blocking effect of ESPB.…”