Trial reportBMC anesthesiology2022
Anterior Quadratus Lumborum block area comparison in the three different volumes of Ropivacaine: a double-blind, randomized controlled trial in healthy volunteers.
Trial report in BMC anesthesiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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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
10 citing papers in PubMed, 16 citations in OpenAlex.
- Trial
- Comparison of Quadratus Lumborum Block and Rectus Sheath Block for Postoperative Analgesia in Single-Port Laparoscopic Adnexal Surgery: A Randomized Controlled Trial.Medicina (Kaunas, Lithuania) · 2025Trial
- Application of the Quadratus Lumborum Block in Pediatric Gastrointestinal Surgery: A Scoping Review.Acta anaesthesiologica Scandinavica · 2026Article
- Comparative evaluation of short vs. long needles in deep ultrasound-guided pharmacopuncture for acute low back pain: study protocol.Frontiers in medicine · 2026Article
- Decoding quadratus lumborum blocks: Fascial pathways and analgesic coverage-A narrative review.Indian journal of anaesthesia · 2026Review
- Review
- Response to "Comment on Comparison of the pericapsular nerve group block with the intra-articular and quadratus lumborum blocks in primary total hip arthroplasty: a randomized controlled trial".Korean journal of anesthesiology · 2024Article
- Caesarean Delivery: A Narrative Review on the Choice of Neuraxially Administered Opioid and Its Implications for the Multimodal Peripartum Pain Concept.Medicina (Kaunas, Lithuania) · 2024Review
- Article
- Anterior Quadratus Lumborum Block and Quadriceps Strength: A Prospective Cohort Study.Journal of clinical medicine · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundIn abdominal surgery, ultrasound-guided anterior quadratus lumborum blocks (QLB) are performed to induce analgesia. However, no study reported suitable volumes of the anterior QLB for the different postoperative analgesia regions. Therefore, this prospective randomized controlled study assessed the dermatomal spread and analgesic effects of the three different volumes of a local anesthetic for anterior QLB.
methodsUltrasound-guided anterior QLB was performed at the L2 level on 30 healthy volunteers. The volunteers were randomized to receive 20 ml (n = 10), 30 ml (n = 10), and 40 mL (n = 10) of 0.375% ropivacaine. The cutaneous sensory blocked area (CSBA), the number of block dermatomes, and the block duration time were measured by determining the extent of the cold sensation.
resultsThe CSBA was significantly larger in the 40 ml group than in the 30 (P = 0.001; 1350.6 ± 234.4 vs. 1009.5 ± 151.6 cm
conclusionsNo difference was observed in block duration with the various volumes of 0.375% ropivacaine. However, the larger volume for anterior QLB contributed to a larger area of cutaneous sensory blockade. Appropriate volumes in anterior QLB can create suitable postoperative analgesia levels for the different operative sites.
trial registrationThe study was registered in the Chinese Clinical Trial Registration Center on www.chictr.org.cn on 27th April 2018 (registration number: ChiCTR-IOR-17010853).
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.