RESUMEN
(1) Introduction: The aim was to describe the anesthetic and surgical technique of eversion carotid endarterectomy performed under intermediate-deep cervical block with sedation, and to analyze the intraoperative and postoperative results. (2) Material and Methods: Thirty cases of unilateral eversion carotid endarterectomy (n = 30), performed between 2019-2020 in a tertiary center under intermediate-deep ultrasound-guided cervical plexus block and sedation, were prospectively observed and analyzed. Hemodynamic (blood pressure, heart rate) and neurological (cerebral oximetry) variables were measured in four intraoperative phases: at the beginning of the operation, prior to carotid clamping, after unclamping and at the end of the operation. We assessed acute postoperative pain in a numerical rating scale at 6, 12 and 24 h, early and 30-day complications, and length of stay. (3) Results: Baseline mean arterial pressure values were 100.4 ± 18 mmHg, pre-clamping 95.8 ± 14 mmHg, post-clamping 94.9 ± 11 mmHg, and at the end of the operation 102.4 ± 16 mmHg. Cerebral oximetry values were 61.7 ± 7/62.7 ± 8, 68.5 ± 9.6/69.1 ± 11.7 and 68.1 ± 10/68.1 ± 10 for the left and right hemispheres at baseline, pre- and post-clamping, respectively. The pain assessment showed a score less than or equal to 3. The incidence of residual nerve block, early complications, and major complications in the first 30 days was 40%, 16.7% and 3.3%, respectively. (4) Conclusions: The combination of intermediate-deep cervical plexus block and low-dose sedation is an effective and safe alternative in awake eversion carotid endarterectomy.
RESUMEN
Se han descrito numerosas modalidades analgésicas para el control del dolor agudo postoperatorio en cirugía de rodilla, sin embargo no se ha encontrado la técnica analgésica ideal que proporcione una analgesia adecuada, preservando la función muscular y que permita una rápida recuperación funcional con escasos efectos secundarios. El bloqueo del nervio safeno a nivel del canal aductor, es un bloqueo principalmente sensitivo, que ha mostrado su utilidad para reducir el dolor y los requerimientos analgésicos en cirugía de rodilla. Es una técnica novedosa, sencilla de realizar, con escasas complicaciones descritas y de la que serán necesarios más estudios para investigar cuales son la concentración óptima y volumen de anestésico local necesario para realizar el bloqueo (AU)
Numerous analgesic varieties have been described at the management of postoperative acute pain in knee surgery, however no regional anaesthetic techniques has so far been demonstrated to be ideal to provide sufficient analgesia with preserved muscle function and to enhance a quick functional recovery with minimal side effects. Saphenous nerve block at level on the adductor canal, it is a predominant sensory blockade, has proven useful in reducing pain and analgesic requirements in knee surgery. It is a novelty technique, a simple block to perform, with few complications, and future studies will be needed to investigate the optimal volume and concentration of local anesthetic necessary to perform the blockade (AU)
