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  1. ncbi.nlm.nih.gov

    National Center for Biotechnology Information

    https://www.ncbi.nlm.nih.gov › sites › books › NBK537212

    Aug 14, 2023Anatomy and Physiology. The QLB differs from the TAP. It is a block of the posterior abdominal wall. It is also referred to as an interfascial plane block because it requires the injection of a local anesthetic into the thoracolumbar fascia (TLF), which is a posterior extension of the abdominal wall muscle fascia and encompasses the back muscles (quadratus lumborum [QL], psoas major [PM], and ...
  2. In 2011, Carney et al. 1 observed posterior spread of the contrast with the same approach technique and extension to the thoracic paravertebral space from the fifth thoracic vertebral level to the first lumbar vertebral level using magnetic resonance imaging (MRI). Subsequently, Børglum et al. 2 described the transmuscular approach. With this ...
  3. resources.wfsahq.org

    The QLB offers effective adjuvant analgesia for abdominal surgery; The QL lies between the anterior muscle layers and the paravertebral space and the efficacy is due to extension into the paravertebral space; Different approaches to QLB have been described with no large studies to show which is the most effective approach; References. 1.
  4. pmc.ncbi.nlm.nih.gov

    These are QLB 1 or lateral QLB, QLB 2 or posterior QLB, QLB 3, or anterior/transmuscular QLB, and QLB 4 or intramuscular QLB. Quadratus lumborum block 1 implies the application of local anesthetics on the lateral side of QLM in the area of its contact with the transversalis fascia, at the level where transversus abdominis muscle (TAM) tapers ...
  5. In particular, transmuscular QLB and the so-called QLB2 may result in wider and longer sensory block compared to TAP nerve block (T4-L1 for QL nerve block vs. T6-T12 for the TAP nerve blocks) (Figures 1 and 2). This chapter focuses on underlying principles for TAP block and the newer QLB techniques, with an understanding that the ...
  6. pmc.ncbi.nlm.nih.gov

    Figure 1 shows the puncture direction of QLB. Figure 1. ... The patient displayed unilateral hip flexion and knee joint extension weakness that lasted for 18 h post-surgery. This adverse effect may have been caused by the spread of the local anaesthetic to the L2 intervertebral space or the lumbar plexus. The blocking of the sympathetic nerve ...
  7. link.springer.com

    We performed contrast enhanced MRI studies (unpublished data) of QLB type 1 at the anterolateral side of the QL muscle (Fig. 10.2) and QLB type 2, at the posterior aspect of the muscle (Fig. 10.3) and examined the spread of contrast within the fascial planes.The MRI images showed that moving the point of injection to the posterior border of the QL muscle might provide a more predictable spread ...
  8. pmc.ncbi.nlm.nih.gov

    1. Introduction. The quadratus lumborum (QL) block was first described by Blanco . ... Considering the branches of lumbar plexus nerves run between the PM and the QL, the anterior QLB may play a role in analgesia not only for the trunk but for the lower extremities as well . A dye injection study showed that the anterior QL block consistently ...
  9. sciencedirect.com

    latéral (QLB 1) : l'injection du produit se fait latéralement au muscle carré des lombes, entre l'extrémité médiale du muscle transverse et le bord latéral du carré des lombes ; ... dans la majorité des cas l'extension de l'analgésie se situe entre T7 et L1 pour un volume d'anesthésique local injecté compris entre 15 et 30 ...
  10. link.springer.com

    Jan 1, 2024Recently, attention has been more focused on blocks capable of involving visceral sensitivity through (albeit controversial) local anesthetic diffusion to the paravertebral space, including the aforementioned ESPB and the QLB in its various forms and approaches (Fig. 1). Both of these blocks have been proposed for intra and postoperative ...

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