Observational studyKorean journal of anesthesiology2020
Analgesic effects and distribution of cutaneous sensory blockade of quadratus lumborum block type 2 and posterior transversus abdominis plane block: an observational comparative study.
Observational study in Korean journal of anesthesiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07260396 (Comparison of the Cutaneous Sensory Block Coverage of Surgical Incisions and Clinical Effectiveness of TAP and Rectus Sheath Blocks in Total Abdominal Hysterectomies Performed With a Pfannenstiel Incision), which is not on this map. Cited by 11 papers.
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.
Comparison of the Cutaneous Sensory Block Coverage of Surgical Incisions and Clinical Effectiveness of TAP and Rectus Sheath Blocks in Total Abdominal Hysterectomies Performed With a Pfannenstiel Incision: A Prospective Observational Study
Who cites it
11 citing papers in PubMed, 15 citations in OpenAlex.
- Enhanced Recovery and Postoperative Analgesia After Laparoscopic Myomectomy: A Randomized Controlled Trial Comparing Total Intravenous Anesthesia, Transversus Abdominis Plane Block with Rectus Sheath Block, and Quadratus Lumborum Block.Drug design, development and therapy · 2026Trial
- Continuous basal infusion versus programmed intermittent bolus for quadratus lumborum block after laparoscopic colorectal surgery: a randomized-controlled, double-blind study.Journal of anesthesia · 2020Trial
- Posterior transversus abdominis plane block versus lateral quadratus lumborum block in children undergoing open orchiopexy: a randomized clinical trial☆.Brazilian journal of anesthesiology (Elsevier)Trial
- Application of the Quadratus Lumborum Block in Pediatric Gastrointestinal Surgery: A Scoping Review.Acta anaesthesiologica Scandinavica · 2026Article
- Ultrasound-guided quadratus lumboum block versus transversus abdominis plane block for post-operative analgesia in patients undergoing total abdominal hysterectomy: A systematic review and meta-analysis.European journal of obstetrics & gynecology and reproductive biology: X · 2026Review
- Advances of regional nerve blocks for postoperative analgesia in laparoscopic gynecological surgery: precision, innovation, and future directions.Frontiers in medicine · 2026Review
- 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
- Transparency considerations for describing statistical analyses in research.Korean journal of anesthesiology · 2021Article
- The indirect benefits of a quadratus lumborum block in urgent laparotomy, hepatic resection, and open aortic surgery.Korean journal of anesthesiology · 2021Article
- Interfascial Plane Blocks and Laparoscopic Abdominal Surgery: A Narrative Review.Local and regional anesthesia · 2020Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe posterior transversus abdominis plane block (TAPB) and quadratus lumborum block (QLB) were developed for postoperative pain control after lower abdominal surgery. However, there is little data regarding their effects. Their analgesic effects and the distribution of the cutaneous sensory blockade were observed in patients undergoing laparoscopic gynecologic surgery.
methodsAfter an induction of general anesthesia, patients alternately received bilateral ultrasound-guided QLB type 2 (QLB2) or posterior TAPB using 20 ml of 0.375% levobupivacaine on each side. The measurements included visual analogue pain scores (VAS), cutaneous sensory blockade in each dermatome, demands for postoperative analgesics, and complications for up to 48 h after the block. Our primary endpoint was VAS at 24 h after the block.
resultsForty patients completed the study. The VAS at rest was significantly lower after QLB2 than that after TAPB at 48 h, but not at 24 h. Neither group differed in VAS when coughing at any point in time. Postoperative demands for fentanyl and other analgesics also did not differ for either block. The majority of injections produced a cutaneous sensory blockade in the T11 and T12 dermatomes in both groups. The median number of dermatomes blocked was limited to three dermatomes after either block. No severe complication related to either block was observed.
conclusionsThe analgesic effects of QLB2 and posterior TAPB did not differ in patients undergoing laparoscopic gynecologic surgery. The cutaneous sensory blockade produced was limited to three dermatomal levels in the majority of patients. However, these findings need to be confirmed through a larger comparative study.
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Registered trials
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.