Zystoskopiegeführte Laserablation zur Korrektur ektopischer Ureterozelen bei 2 Hündinnen

Zusammenfassung

Zwei intakte Labrador-Retriever-Hündinnen (6 bzw. 3 Monate alt) wurden wegen Harninkontinenz vorgestellt. In beiden Fällen ergaben sich ultrasonografische Hinweise auf eine einseitige Ureterozele mit ektopischer Mündung. Eine definitive Diagnose wurde mittels Urethrozystoskopie durch Nachweis einer Ureteröffnung in der Urethra gestellt und durch kontrastmittelgestützte retrograde Fluoroskopie bestätigt. Die betroffene Uretermündung stellte sich bei beiden Hündinnen stenotisch dar. Die Behandlung erfolgte bei beiden Patienten durch eine zystoskopie- und fluoroskopiegestützte Laserablation des ektopischen Ureters mit einem Hol:YAG-Laser. Nach dem Einriff waren beide Hündinnen ohne medikamentöse Therapie kontinent. Die zystoskopisch geführte Laserablation zur Therapie ektopisch mündender Ureterozelen ist ein effektives und sicheres minimalinvasives Verfahren. Es stellt somit eine Alternative zur offenen chirurgischen Behandlung dar.

Abstract

Two female intact Labrador Retriever dogs (6 and 3 months of age, respectively) presented with a history of urinary incontinence. In both dogs, abdominal ultrasound revealed evidence of a unilateral ectopic ureterocele. Diagnosis of ureteral ectopia was established urethrocystoscopically by visualization of the ureteral orifice in the urethra, and an intramural course was confirmed via retrograde contrast fluoroscopy. Ectopic ureteral orifices were stenotic in both dogs. Cystoscopic- and fluoroscopic-guided laser ablation of the ectopic ureter were performed with a Hol:YAG laser. Following the procedure, both dogs were fully continent without any medical treatment. Cystoscopic- guided laser ablation of ureteroceles was effective and safe in these 2 dogs. Thus, this minimally invasive technique for the treatment of ectopic ureteroceles provides an alternative to surgical intervention.

Schlüsselwörter

Kanin - interventionelle Endoskopie - Urethrozytoskopie - Ureterektopie

Key words

Canine - interventional endoscopy - urethrocystoscopy - ureteral ectopia

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