Peritoneal Adhesions (or Simply "Adhesions")
The term for intestines adherent to the abdominal wall is "peritoneal adhesions" or simply "adhesions." 1
Definition
According to the 2018 Bologna Guidelines from the World Society of Emergency Surgery, peritoneal adhesions are defined as fibrous tissue that connects surfaces or organs within the peritoneal cavity that are normally separated 1. These adhesions represent a pathological healing response of the peritoneum following injury, rather than normal "ad integrum" (complete) repair.
Key Characteristics
Adhesions form fibrous bands between:
- The intestines (small and large bowel)
- The abdominal wall
- The omentum
- Other intra-abdominal organs
- The mesentery
These bands can vary in structure from:
- Thin films of connective tissue
- Thick fibrous bridges containing blood vessels and nerve tissue
- Direct adhesions between two organ surfaces
Common Causes
The most typical cause is peritoneal injury from abdominal surgery 1. Other conditions causing peritoneal injury that result in adhesion formation include:
- Radiotherapy
- Endometriosis
- Inflammation
- Local response to tumors
Clinical Significance
Adhesions are the single most common cause of small bowel obstruction (SBO) 1. The most frequent site of adhesion formation is between the greater omentum and the anterior abdominal wall 3. These adhesions can lead to:
- Adhesive small bowel obstruction (ASBO) - a surgical emergency
- Chronic abdominal pain
- Female infertility
- Complications during subsequent surgeries