Role of Ketamine as an Adjuvant to Bupivacaine in C-Arm Guided Thoracic Paravertebral Block Analgesia for Modified Radical Mastectomy

Ketamine versus neostigmine as adjuvants to bupivacaine during ultrasound-guided serratus anterior plane block in modified radical mastectomy. A randomized controlled trial

Effect of ketamine–bupivacaine combination in multilevel ultrasound- assisted thoracic paravertebral block on acute and chronic post-mastectomy pain

Comparative study of analgesic effect of epidural ketamine vs. epidural tramadol in patients undergoing mastectomy under thoracic epidural anesthesia

Efficacy of adding tramadol as adjunctive analgesic with levobupivacaine in modified pectoral nerve block for modified radical mastectomy surgery

The Effect of Ketamine as Adjuvant in Ultrasonic Guided Supraclavicular Brachial Plexus Block

Effect of tramadol as a local anesthetic adjuvant in epidural labor analgesia: Randomized controlled study

Effect of Adding Ketamine as An Adjuvant to Lidocaine in Ultrasound Guided Supraclavicular Brachial Plexus Block

The Effect of Adding Ketamine or Midazolam to Bupivacaine for Ultrasound-Guided Supraclavicular Brachial Plexus Block for Upper Extremity Surgeries

Comparative study between Tramadol and Midazolam as an admixture to bupivacaine inUltrasound guided supraclavicular brachial plexus block.