Purpose Paravertebral blocks have gained in popularity and offer the possible benefit of reduced adverse effects when compared with epidural analgesia. Nevertheless, pulmonary complications in the form of inadvertent pleural puncture are still a recognized risk. Also, the traditional paravertebral blocks are often technically difficult even with ultrasound guidance and constitute deep noncompressible area injections. We present our experience with the first three patients receiving ultrasound-guided retrolaminar blocks for managing the pain associated with multiple rib fractures. Clinical features The vertebral laminae are identified by ultrasound imaging in a paramedian sagittal plane by sequentially visualizing the pleura and ribs, transverse processes, and the corresponding laminae (from lateral to medial). The block needle is guided to contact the lamina, and the local anesthetic injectate is visualized under real-time imaging. A catheter is inserted and used for continuous analgesia. In three consecutive patients, verbal rating scale (VRS) pain scores were reduced from 10/10 to less than 5/10, and no technical difficulties, complications, or adverse effects were encountered. Conclusions Successful analgesia was achieved in all three cases utilizing continuous infusion and intermittent boluses with ultrasound-guided retrolaminar blocks. These results show the feasibility of this approach for patients with multiple rib fractures. RésuméObjectif Les blocs paravertébraux ont gagné en popularité et offrent l'avantage de réduire potentiellement les effets secondaires comparativement à l'analgésie péridurale. Toutefois, les complications pulmonaires, sous forme de ponction pleurale involontaire, demeurent un risque bien connu. En outre, les blocs paravertébraux conventionnels sont souvent difficiles à réaliser d'un point de vue technique et ce, même sous échoguidage, étant donné qu'il s'agit d'injections profondes réalisées dans des zones non compressibles. Nous rapportons notre expérience auprès des trois premiers patients à recevoir un bloc rétrolaminaire échoguidé pour la prise en charge de la douleur associée à une fracture multiple des cô tes. É léments cliniques Les lames vertébrales sont identifiées par ultrason dans un plan sagittal paramédian en visualisant la plèvre et les cô tes, les apophyses transverses, et les lames correspondantes (des lames latérales aux médiales) séquentiellement. L'aiguille du bloc est guidée jusqu'à ce qu'elle atteigne la lame, et l'anesthésique local injecté est visualisé par imagerie en temps réel. Un cathéter est inséré et utilisé pour l'analgésie en continu. Chez trois patients consécutifs, les scores de douleur sur une échelle visuelle ont baissé de 10/10 à Author contributions Christopher Voscopoulos, Dhamodaran Palaniappan, Jose Zeballos, Kamen Vlassakov, and Hanjo Ko performed blocks. Christopher Voscopoulos, Dhamodaran Palaniappan, Jose Zeballos, Kamen Vlassakov, Hanjo Ko, Michael Kapottos, David Janfaza, and Agnieszka Trzcinka contributed to writing the paper. ...
When training anesthesiologists to perform LUS for the exclusion of pneumothorax, we found that Web-based training was not inferior to traditional classroom-based training and was effective, leading to test scores that were similar to a group of clinicians experienced in LUS.
Because all reviewed articles were only single case reports or case series, no reliable conclusion could be drawn concerning the effectiveness of nerve blocks with local anesthetics in neuralgia. However, 2 features of the analyzed reports-the large magnitude of the effect and the high consistency of the reported outcome-indicate that future research efforts are warranted.
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