Research recommendation(s) from an individual piece of guidance Guidance: Superior rectal artery embolisation for haemorrhoids Date issued: 29 August 2018 Research recommendations coming out of this guidance Further research in superior rectal artery embolisation for haemorrhoids should report details of patient selection, and follow-up efficacy (including symptom relief), need for subsequent treatments, quality of life and safety outcomes for at least 1 year.