Retrograde mesenteric stenting during laparotomy for acute occlusive mesenteric ischemia

Area of Science:

• Vascular Surgery
• Interventional Radiology
• Gastrointestinal Surgery

Background:

• Acute mesenteric ischemia (AMI) due to arterial occlusive disease has high mortality.
• Prompt diagnosis and revascularization are crucial for managing AMI.
• A novel hybrid technique combining endovascular recanalization and open retrograde stenting of the superior mesenteric artery (SMA) was developed.

Purpose of the Study:

• To evaluate the efficacy and safety of a new hybrid technique for arterial occlusive AMI.
• To compare the outcomes of retrograde open SMA stenting (ROMS) with other revascularization methods.
• To assess the feasibility of combining endovascular stenting with open laparotomy for AMI management.

Main Methods:

• Retrospective review of 13 emergent mesenteric revascularizations for arterial occlusive AMI (2001-2005).
• Analysis of outcomes based on revascularization method: surgical bypass, antegrade percutaneous stenting, and ROMS.
• Evaluation of restenosis using duplex ultrasound imaging.

Main Results:

• Satisfactory revascularization was achieved in all cases across all methods.
• ROMS had the lowest hospital mortality (17%) compared to bypass (80%) and antegrade stenting (100%).
• ROMS demonstrated a high technical success rate, particularly when antegrade attempts failed.

Conclusions:

• Retrograde open SMA stenting during laparotomy is a technically successful and attractive alternative for arterial occlusive AMI.
• The hybrid approach allows for essential surgical assessment and resection of nonviable bowel.
• High restenosis rates necessitate close patient follow-up, and further development of this technique is warranted.