Persistent Postoperative Pain: Pathophysiology, Risk Factors, and Prevention

Area of Science:

• Pain Medicine
• Surgical Outcomes
• Pelvic Health

Background:

• Persistent postoperative pain (PPOP) is a significant cause of chronic pain, often developing after surgeries for pelvic organ prolapse or incontinence.
• Understanding the pathophysiology and risk factors for PPOP is crucial for effective prevention strategies.
• Central sensitization plays a key role in the development of chronic pain disorders, including PPOP.

Purpose of the Study:

• To review the literature on the prevalence, pathophysiology, and prevention of persistent postoperative pain (PPOP).
• To identify risk factors for PPOP in patients undergoing surgery for pelvic floor disorders.
• To highlight the importance of perioperative interventions in PPOP prevention.

Main Methods:

• A MEDLINE search was conducted to evaluate articles on chronic pain and PPOP.
• The review included studies on prevalence, pathophysiology, and prevention of PPOP.
• Key concepts such as central sensitization and risk factors like prior chronic pain, levator myalgia, allodynia, and hypertonic pelvic floor disorders were examined.

Main Results:

• Patients with a history of chronic pain, levator myalgia, allodynia, or hypertonic pelvic floor disorders are at higher risk for PPOP.
• The pathophysiology of PPOP is well-understood, with central sensitization being a critical factor.
• Identifying at-risk individuals enables targeted perioperative interventions.

Conclusions:

• Early identification of patients at risk for PPOP is essential for implementing preventive measures.
• Perioperative interventions can be offered to mitigate the risk of developing PPOP.
• Further research is needed to establish the efficacy of these interventions for patients undergoing surgery for incontinence and pelvic organ prolapse.