Currently there is no standardized management or single technique to manage postoperative pain after Video-assisted thoracic surgery (VATS), there are many options available ranging from intravenous opioids, morphine or fentanyl Patient-controlled analgesia (PCA), peripheral nerve blocks, intercostals, paravertebral and epidural blocks. Erector Spinal Block (ESP), this blocks the ventral and dorsal branch of the unilateral thoracic roots. It corresponds to an interfacial block that produces an extensive multidermatomal sensitive block with a single puncture, covering the anterior, lateral and posterior aspect of the thorax. One of its main advantages would be safety, possible less damage to nerves and pneumothorax, as well as the simplicity of execution of this block. What has positioned it as another analgesic alternative in this type of surgery. The pharmacokinetic profile that local anesthetics would have when injected into this interfacial compartment has not yet been described, and what the real impact of the use of vasoconstrictor will be in terms of plasma levels and duration of the block. Our objective is to compare the plasma levels of levobupivacaine achieved after performing an ESP Block with or without epinephrine.
Age range
18 Years – 80 Years
Sex
ALL
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Plasma levels of levobupivacaine
Timeframe: 5, 10, 20, 30, 60, 90 minutes post block.
Changes in plasma levels levobupivacaine of the group I v/s group II
Timeframe: 5, 10, 20, 30, 60, 90 minutes post block.
Sensitive skin extension
Timeframe: 15 minutes post-block