Parasternal Block Combined With Rectus Sheath Block for Cardiac Surgery Under Sternotomy

Ultrasound Guided Parasternal Block Combined With Rectus Sheath Block for Cardiac Surgery Under Sternotomy: A Randomized Controlled Trial

The aim of this randomized controlled trial is to examine the effect of ultrasound guided bilateral Parasternal Nerve Block combined with rectus sheath block on preoperative analgesia, opioid consumption and respiratory function in patients undergoing cardiac surgery via sternotomy. Half of participants will receive General Anesthesia combined with bilateral parasternal block and rectus sheath block while the other half receive General Anesthesia combined with bilateral parasternal block and infiltration of drainage exits sites with local anesthetic (without performing rectus sheath block)

Inclusion Criteria:

• Patients undergoing elective cardiac surgery under median sternotomy
• Age >= 18 years
• American Society of Anesthesiologists (ASA) Status I-IV
• Approval and sign of the informed consent

Exclusion Criteria:

• Allergy to local anesthetics
• Puncture site infection
• Lack of signing of informed consent
• Age <18 years
• Emergency surgery
• ASA > IV
• preoperative acute respiratory failure