Lidocaine and Triamcinolone vs Saline Trigger Point Injection for Treatment of Chronic Abdominal Wall Pain

Lidocaine and Triamcinolone vs Saline Trigger Point Injection for Treatment of Chronic Abdominal Wall Pain

The purpose of this study is to determine whether the injection of triamcinolone and lidocaine is effective in relieving chronic abdominal wall pain.

Inclusion Criteria:

• Clinical diagnosis of chronic abdominal wall pain
• Prior ultrasound or cross-sectional imaging of the abdomen to exclude other causes
• Baseline Brief Pain Inventory score ≥ 5

Exclusion Criteria:

• Multiple trigger points
• Abdominal wall hernia on exam
• Weight loss
• Rectal bleeding
• Recent change in bowel habits
• Decompensated cirrhosis or recurrent ascites
• Allergy or contraindication to study medications
• Known thrombocytopenia with platelet count < 50,000
• Other diagnosis of chronic pain syndromes including fibromyalgia
• Unable to provide informed consent
• Pregnancy