ADAMTS13 activity decreases after hepatectomy, reflecting a postoperative liver dysfunction

Area of Science:

• Hepatology
• Vascular Biology
• Coagulation Science

Background:

• Hepatic function deterioration post-liver surgery mechanisms remain unclear.
• ADAMTS13 cleaves von Willebrand factor multimers; reduced activity may cause platelet aggregation and liver dysfunction.
• Microcirculatory disturbances following hepatectomy can exacerbate liver dysfunction.

Purpose of the Study:

• To evaluate changes in plasma ADAMTS13 activity after hepatectomy.
• To determine the clinical relevance of ADAMTS13 activity in patients undergoing liver surgery.

Main Methods:

• Sequential measurement of plasma ADAMTS13 activity in 70 patients post-hepatectomy.
• Analysis of correlations between ADAMTS13 activity and surgical factors or clinical outcomes.

Main Results:

• ADAMTS13 activity significantly decreased post-hepatectomy (67.0% to 48.1%).
• Prolonged Pringle's maneuver and major hepatectomy were associated with decreased ADAMTS13 activity.
• Reduced ADAMTS13 activity correlated with postoperative thrombocytopenia and hyperbilirubinemia.

Conclusions:

• ADAMTS13 activity reduction post-hepatectomy is linked to ischemic injury and liver mass reduction.
• Decreased ADAMTS13 activity reflects postoperative liver dysfunction.
• Monitoring ADAMTS13 activity could aid in preventing liver failure after hepatectomy.