Prognosis

Re-bleeding

The natural history of angiodysplasia is poorly understood.[39] It is estimated that <10% of all patients with angiectasia will eventually bleed. Re-bleeding is reported to be between 30% and 40% per annum.[73]​ This risk is propagated by patients’ comorbidity.

Presence of multiple lesions, frequent previous bleeding episodes, heart failure, being a smoker, and transfusion requirements predict recurrent bleeding.[23][74]​ Bleeding stops spontaneously in >90% of presentations.[6]

Mortality

Mortality due to the complications of bleeding is around 10%.[39] A poor prognosis is associated with emergency surgery, haemorrhagic shock at presentation, and the presence of comorbidities.

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