Small Bowel Angioectasias Rebleeding and the Identification of Higher Risk Patients

14 Abr. 2020 |

Cátia Arieira1,2,3 · Rui Magalhães1,2,3 · Francisca Dias de Castro1,2,3 · Pedro Boal Carvalho1,2,3 · Bruno Rosa1,2,3 · Maria João Moreira1,2,3 · José Cotter1,2,3

  • Gastroenterology Department, Hospital da Senhora da Oliveira, Rua dos Cutileiros, Creixomil, 4835-044, Guimarães, Portugal
  • Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga/Guimarães, Portugal
  • ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal



Small bowel capsule endoscopy (SBCE) is the gold standard for suspected small bowel bleeding (SBB). Angioectasias are the most common vascular anomalies in the gastrointestinal tract and have been reported as the source of SBB in up to 80% of patients. Considering their frequency, their usual intermittent bleeding nature, and their risk of rebleeding, the aim of this study was to identify some features and possible predictors of rebleeding in the presence of these lesions.


This is a retrospective study, which included consecutive SBCE with angioectasias between April 2008 and December 2017 with a minimum follow-up of 12 months. Rebleeding was defined as a drop of hemoglobin ≥ 2 g/dl and/or in the presence of hematochezia or melenas with negative esophagogastroduodenoscopy and ileocolonoscopy. Data were collected from medical records, and angioectasias were classified by number, location, size, and type. Univariate and multivariable statistical analysis was performed to identify possible predictors of rebleeding.


From a total of 630 patients submitted to SBCE for suspected SBB, 129 with angioectasias were included; 59.7% were female, with a median age of 72 (19–91) years old and a mean follow-up of 44.0 ± 31.9 months. In 32.6% (n = 42) of the patients, at least one episode of rebleeding was documented. The presence of heart failure (OR 3.41; IC95% 1.18–9.89; p = 0.024), the size of the angioectasias (OR 5.41; IC95% 2.15–13.6; p < 0.001), and smoking status (OR 3.15; IC95% 1.07–9.27; p = 0.038) were independent predictor factors of rebleeding.


Heart failure, smoking status, and angioectasias with a size superior to 5 mm are independent predictor factors of rebleeding in a population with angioectasias diagnosed by SBCE.

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