Introduction: Bladder rupture in patients with indwelling urethral catheters is rare. Herein, we describe two spinal cord injured (SCI) patients with neurogenic bladder dysfunction managed with chronic indwelling catheters who presented with extraperitoneal bladder rupture related to bladder instillation. One case was during continuous bladder irrigation for hematuria, the other during routine cystography.
Case presentation: One patient is a tetraplegic male with a C5 ASIA impairment scale (AIS) SCI and a chronic catheter who presented with gross hematuria and autonomic dysreflexia (AD). Continuous irrigation was complicated by ongoing AD and poor catheter drainage. A CT scan revealed an extraperitoneal bladder rupture which was managed with surgical repair and suprapubic catheter. The second patient is a tetraplegic female who underwent gravity cystography to evaluate for vesicoureteric reflux. She experienced AD, followed by a witnessed extraperitoneal rupture. The rupture resolved with continued catheter drainage. No long term complications were noted.
Discussion: We present two cases of extraperitoneal rupture in chronically catheterized SCI patients following bladder instillation. Both patients were undergoing instillation of fluid through balloon catheters which likely occluded the outlet. We believe that rupture in both cases was iatrogenic, from elevated intravesical pressures during gravity instillation of fluid. Both patients experienced AD during these events. A procedure involving bladder instillation in chronically catheterized SCI patients should be performed by providers familiar with management of AD. Risk factors for iatrogenic bladder rupture during instillation procedures likely include chronic catheterization, small bladder capacity, instillation under significant pressure, and occlusion of the bladder outlet by a balloon catheter.