Superselective transcatheter arterial embolization for acute small bowel bleeding: clinical outcomes and prognostic factors for ischemic complications

Abstract

Background

Small bowel bleeding (SBB) accounts for 5%–10% of all cases of acute gastrointestinal bleeding. Transcatheter arterial embolization (TAE) plays an important role in the treatment of SBB.

Purpose

To evaluate the safety and efficacy of superselective TAE exclusively for SBB and to assess factors associated with clinical outcomes.

Material and Methods

From January 2006 to April 2017, 919 patients were admitted with signs and symptoms of gastrointestinal bleeding; 74 patients (mean age = 57.5 years; age range = 14–82 years) with positive angiographic findings for SBB were retrospectively analyzed. The technical success of TAE and clinical outcomes, including recurrent bleeding, major complications, and in-hospital mortality were evaluated. The associations of various clinical and technical factors with clinical outcomes were analyzed.

Results

The bleeding foci were in the ileum in 48 (65%) patients and the jejunum in 26 (35%). Technical success was achieved in 72 (97%) patients. The rates of recurrent bleeding, major complications, and in-hospital mortality were 12% (7/57), 21% (15/71), and 25% (18/72), respectively. Superselective embolization was a significant prognostic factor associated with fewer major complications (OR = 0.069; P = 0.003). The increased number of embolized vasa recta was significantly associated with a higher probability of major complications (OR = 2.64; P < 0.001). The use of N-butyl cyanoacrylate was associated with lower rates of major complication (OR = 0.257; P = 0.027).

Conclusion

TAE is a safe and effective treatment modality for SBB. In addition, whenever possible, TAE should be performed in a superselective manner to minimize ischemic complications.

Keywords

Gastrointestinal hemorrhage small intestine therapeutic embolization treatment outcome postoperative complications

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