Abstract:

Objective To analyze the clinical efficacy of selective arterial embolization in the treatment of grade III and above closed renal trauma and to explore its application value.

Methods Collected from January 2009 to December 2017，126 cases of closed renal trauma patients，Ⅲ level more than 74 cases of renal trauma patients，according to different time were divided 74 patients into two groups，the traditional group（before March 2013）42 cases，adopts the traditional way of treatment.In the intervention group（after March 2013），32 patients were treated with interventional embolization.The differences in hematuria duration，blood transfusion volume，renal resection rate，unplanned secondary surgery，hospital expenses and hospital stay were compared between the two groups.

Results Traditional group hematuria duration [Ⅲ（8.10±1.23）d，Ⅳ（4.14±0.59），Ⅴ（4.01±0.28）d]，blood transfusion amount（95.13±5.28）for ml，renal resection rate 83.33%（35/42），8 cases of unplanned secondary surgery，hospitalization fee（3.11±0.45）ten thousand yuan，length of hospital stay（13.34±2.20）d.Duration of intervention group hematuria [Ⅲ（3.06±1.62）d，Ⅳ（3.07±0.83），Ⅴ（2.93±0.56）d]，blood transfusion amount（20.56±1.44）ml，without renal resection，2 cases，hospitalization fee（1.06±0.82）ten thousand yuan，length of hospital stay（7.06±1.41）d.The cost and length of hospitalization in the intervention group were better than those in the traditional group，with statistically significant differences（P<0.05）.The duration of hematuria，amount of blood transfusion，renal resection rate and unplanned secondary operation in the intervention group had significant advantages over the traditional group，with statistically significant differences（P<0.05）.

Conclusion Selective renal artery embolization Ⅲ magnitude of renal trauma than traditional operation method has obvious advantages，the patient basic requirements is low，the operation preparation time is short，fast hemostasis，high safety and repeatability，renal resection rate is low.

Key words: renal artery embolization, kidney injury, surgery