Open Repair for Ruptured Abdominal Aortic Aneurysm and the Risk of Spinal Cord Ischemia: Review of the Literature and Risk-factor Analysis

Abstract 

Objectives

Spinal cord ischemia after open surgical repair for rAAA is a rare event. We estimated the current incidence and tried to identify risk factors. We also report a new case.

Methods

Group A consisted of 10 reports on open repair for rAAA from 1980 until 2009. Only series of ≥100 patients were considered to estimate the incidence. Thirty three case reports from 1956 until 2009 were identified (group B). Case reports from group B were not encountered in group A. Group B patients were stratified according to the type of neurological deficit as described by Gloviczki (type I complete infarction and type II infarction of the anterior two third).

Results

Group A consisted of 1438 patients. In group A 86% were male with a mean age of 72.1 years. The incidence of post-operative paraplegia was 1.2% (range 0–2.8%). In-hospital mortality was 46.9%. Of the 33 patients of group B were 86% male with a mean age of 68.0 years. Most patients developed a type I (42%) or type II (33%) deficit. In-hospital mortality was 51.6%. No significant differences between different types were encountered.

Conclusion

Spinal cord ischemia after ruptured AAA is a rare complication with an incidence of 1.2% (range 0–2.8%).

Keywords: rAAA, Spinal cord ischemia, SCI, Aneurysm