Mesenteric Malperfusion in Acute Aortic Dissection: Challenges and Frontiers

Area of Science:

• Cardiovascular Surgery
• Vascular Surgery
• Aortic Disease

Background:

• Malperfusion syndrome, caused by end-organ ischemia during aortic dissection, presents significant challenges.
• Mesenteric malperfusion (MMP) is a particularly severe complication, increasing mortality 3-4 fold in acute aortic dissections.
• The high incidence (66-100%) and insidious onset of MMP complicate diagnosis and management.

Purpose of the Study:

• To review the diagnostic and management challenges of mesenteric malperfusion in aortic dissection.
• To explore current treatment approaches for MMP in acute type A and B aortic dissections.

Main Methods:

• Literature review of studies on aortic dissection and mesenteric malperfusion.
• Analysis of different management strategies for MMP.
• Discussion of treatment variations based on aortic dissection type and ischemia severity.

Main Results:

• Mesenteric malperfusion is a frequent and life-threatening complication of aortic dissection.
• Management remains controversial, with ongoing debate regarding the optimal timing of aortic repair versus mesenteric reperfusion.
• Treatment for type A dissections may involve central, endovascular, or simultaneous repair, while type B dissections predominantly utilize endovascular approaches.

Conclusions:

• Mesenteric malperfusion poses a significant threat in aortic dissection, demanding careful consideration.
• A patient-specific approach is essential due to the varied presentations and ischemic severity.
• Further research is needed to refine management protocols for MMP in aortic dissections.