Urinary Retention in Friedreich Ataxia: Managing Elevated Post-Void Residual Volume

Bladder dysfunction, including urinary retention and persistently elevated post-void residual (PVR) volumes, is a recognised complication in individuals with Friedreich ataxia. When PVR exceeds 100 mL — or frank urinary retention is present — a structured, evidence-based management approach is indicated.

This protocol applies to individuals with Friedreich ataxia who present with urinary retention or a persistently elevated post-void residual volume in excess of 100 mL. A patient's neurological status and functional abilities are key factors in determining the appropriate management pathway.

A catheterization-based strategy underpins the management of this presentation. The full protocol specifies which approach applies under each clinical condition and what patient factors guide that selection — details available in the structured regimen below.