Trial reportKorean journal of anesthesiology2026
Impact of ultrasound-guided rhomboid intercostal and serratus anterior plane blocks on respiratory function after modified radical mastectomy: a randomized controlled trial.
Trial report in Korean journal of anesthesiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Efficacy of serratus anterior plane block on postoperative nausea and vomiting: a meta-analysis of randomized controlled trial.Frontiers in medicine · 2026Pooled it
- Do fascial plane blocks improve respiratory function after breast surgery?Korean journal of anesthesiology · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study aimed to evaluate the effectiveness of the rhomboid intercostal plane (RIP) and serratus anterior plane (SAP) blocks at enhancing respiratory function in patients undergoing modified radical mastectomy (MRM).
methodsPatients were randomly assigned to the block or control group. The block group received RIP and SAP blocks (20 ml 0.25% bupivacaine each), whereas the control group received no block. The primary outcome was forced expiratory volume in one second (FEV1) 2 h postoperatively. Secondary outcomes included forced vital capacity (FVC), FEV1/FVC ratio, peak expiratory flow (PEF), forced expiratory flow at 25% to 75% (FEF25-75), pain scores, and opioid requirements.
resultsThe block and control groups had similar FEV1 values (1.80 ± 0.51 vs. 1.74 ± 0.49, P = 0.659) and FEV1/FVC ratios at 2 h. The block group had higher FVC values at 6 h (2.21 ± 0.76 vs. 1.87 ± 0.48, P = 0.034) and 24 h (2.35 ± 0.65 vs. 1.97 ± 0.53, P = 0.014) and higher PEF and FEF25-75 values at 24 h. Pain scores were lower in the block group at all time points, and opioid consumption was higher in the control group during the first 6 h. The incidence of postoperative nausea and vomiting was similar.
conclusionsThis study failed to demonstrate a significant difference in FEV1 values; however, improvements in FVC, PEF, and FEF25-75 indicated a potential positive impact on respiratory function, and combining the RIP and SAP blocks after MRM led to lower pain scores and decreased opioid consumption.
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