Comparing Erector Spinae Plane (ESP) and Thoracic Paravertebral (TPV) Block Analgesic Effect After Elective VATS

There are clear clinical and logistic reasons for pursuing the best possible post-operative pain management avoiding the negative side effects of opioid treatment; in order to garantee an enhanced recovery after surgery. A short hospital stay is fundamental to reduce patient morbidity and costs. Regional anesthetic nerve blocks are an ideal option to achieve this goal.

Paravertebral block serves as an ideal approach for thoracic and abdominal surgery through delivering segmental anesthesia of operative sites. Thoracic paravertebral block has superior analgesia as well as fewer complications than systemic opioids. It has been successfully applied in sternotomy, breast surgery, abdominoplasty, and laparoscopic cholecystectomy. ESP block is a recently described technique, with promising results in different scenarios. It probabily has a better risk profile than PVB, for its lower possibility of accidental pleural puncture and reabsorption of local anesthtetic than PVB one

Inclusion criteria

• patients over 18 year of age undergoing elective VATS lung resection at ORBV

Exclusion criteria

• patients with inability to consent, contraindications to standard care, or factors that can cause bias in interpretation, absolute contraindications to the regional anesthesia techniques studied (patient's refusal, allergy to local anesthetics, infections in the site of injection). Pregnant women are not a target study-group so they are excluded for design simplification. Conversion to the open technique will be a post-randomization exclusion factor concerning the main outcomes