Retraction speed and chronic poststernotomy pain: A randomized controlled trial

Area of Science:

• Cardiothoracic Surgery
• Pain Management
• Clinical Trials

Background:

• Chronic poststernotomy pain (CPSP) affects approximately 30% of patients after cardiac surgery.
• Current risk factors for CPSP are known, but causal determinants remain unidentified.
• A hypothesis suggests slower sternal retraction may reduce nerve and tissue damage, thereby lowering CPSP incidence.

Purpose of the Study:

• To determine if slower sternal retraction reduces the incidence of CPSP.
• To assess the impact of slower sternal retraction on health-related quality of life.
• To evaluate potential differences in pain, analgesic use, and rehospitalization rates.

Main Methods:

• A randomized controlled trial involving patients undergoing coronary artery bypass graft surgery.
• Patients were assigned to either slow (15 minutes) or standard (30 seconds) sternal retraction.
• Blinding was maintained for patients, assessors, and postoperative nursing staff; pain, quality of life, and rehospitalization were assessed up to 12 months.

Main Results:

• 313 patients were randomized (159 slow, 154 standard).
• No significant differences were found in acute pain, analgesic consumption, CPSP incidence, or health-related quality of life.
• The slow retraction group experienced more hospitalizations at 3 and 12 months, unrelated to retraction speed; no differences in 30-day mortality or rehospitalization.

Conclusions:

• Slower sternal retraction did not lead to clinically significant differences in CPSP incidence or quality of life.
• Findings align with previous reports, indicating retraction speed is not a major determinant of CPSP.
• Further research may be needed to identify effective strategies for preventing CPSP.