Spinal cord function status and risk factors of pressure injury in patients with spinal dural arteriovenous fistula: a correlation study

Abstract

Objective To explore the correlation between spinal cord function and the risk of pressure injury in patients with spinal dural arteriovenous fistula (SDAVF) . Methods A total of 65 patients with SDAVF treated in Neurosurgery Department in Xuanwu Hospital between March 2013 and December 2016 was carried out. The Modified Aminoff-Logue Score (mALS) and Braden pressure Ulcer Risk Factor Assessment Scale were used to evaluated the spinal cord and the risk of pressure ulcers of the patients with SADVF. Spearman was used to analyze the correlation. Results The Preoperative mALS was (5.15±2.62) , and the Braden score was (20.88±2.09) . The postoperative Braden score was (17.25±1.61) , The result of Spearman correlation analysis showed that the total score of preoperative mALS was negatively correlated with the total score of Braden (r=-0.597, P<0.01) . Conclusions Preoperative spinal cord function was slightly impaired in patients with SDAVF. The risk of postoperative pressure injury decreased when patients have better spinal cord function. The risk of pressure injury after operation is higher than that before operation. Key words: Pressure ulcer; Spinal dural arteriovenous fistula; Spinal function; Pressure sores; Correlation analysis