A Study Investigating Properties of the Transversus Abdominis Plane Block

Transversus Abdominis Plane Block: A Placebo-controlled Study in Healthy Volunteers

In this study we investigate the following properties of the transversus abdominis plane block in healthy volunteers:

1. Cutaneous analgesic distribution
2. Muscular affection
3. Reproducibility

Inclusion Criteria:

• Capable
• American society of anesthesiologists classification 1 or 2
• Written informed consent

Exclusion Criteria:

• Age below 18 years
• American society of anesthesiologists classification above 2
• Body weight below 50 kg
• Body mass index > 35 kg/m2
• Previous abdominal surgery
• Acute or chronic pain
• Use of pain medication less than 24 h prior to study start
• Allergy to local anesthetics
• Pregnancy
• Breastfeeding