Anterior urethral valves in children: A possible association between anterior urethral valves and Cowper’s duct cyst

Kajiwara, Mitsuru; Inoue, Keiji; Katô, Masao; Usui, Akihiro; Matsubara, Akio; Usui, Tsuguru

doi:10.1111/j.1442-2042.2007.01617.x

Cited by 9 publications

(7 citation statements)

References 8 publications

(14 reference statements)

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“…Between 75 and 80% of patients with anterior urethral valve present with some degree of bladder dysfunction, even after adequate valve ablation is done (19). Kajiwara et al evaluated urodynamic characteristics in patients with AUV which included bladder instability, overactive bladder, and poor bladder compliance and capacity (20). …”

Section: Discussionmentioning

confidence: 99%

Anterior Urethral Valves: Not Such a Benign Condition…

et al. 2013

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Purpose: Anterior urethral valves (AUVs) is an unusual cause of congenital obstruction of the male urethra, being 15–30 times less common than posterior urethral valves (PUVs). It has been suggested that patients with congenital anterior urethral obstruction have a better prognosis than those with PUV, with less hydronephrosis, and a lower incidence of chronic renal insufficiency (5 vs. 30%). The long-term prognosis of AUVs is not clear in the literature. In this report we describe our experience and long-term follow up of patients with anterior urethral valve.Materials and Methods: We retrospectively identified 13 patients who presented with the diagnosis of AUVs in our institutions between January 1994 and June 2012. Two patients were excluded: one patient had no follow up after intervention; the other had a follow up <1 year. From the 11 patients included, we evaluated the gestational age, prenatal and postnatal ultrasound findings, voiding cystourethrogram findings, age upon valve ablation, micturition pattern, creatinine, and clinical follow up.Results: Between 1994 and 2012 we evaluated 150 patients with the diagnosis of urethral valves. Of this group, 11 patients (7.3%) had AUVs and an adequate follow up. Mean follow up is 6.3 years (2.5–12 years). Five (45.4%) patients had prenatal diagnosis of AUV. The most common prenatal ultrasonographic finding was bilateral hydronephrosis and distended bladder. One patient showed a large perineal cystic mass, which was confirmed to be a dilated anterior urethra. The mean gestational age was 37.6 weeks (27–40 WGA). Postnatally, 90% had trabeculated bladder, 80% hydronephrosis, and 40% renal dysplasia. The most common clinical presentation was urinary tract infection in five patients (45.4%), followed by weak urinary stream found in four patients (36.3%). The age at initial surgical intervention ranged between 7 days and 13 years. Seven (63.6%) patients had primary transurethral valve resection or laser ablation and three patients (27.2%) had primary vesicostomies. One boy (9.1%) had penile urethrostomy with excision of urethral diverticulum. Two (18.2%) patients developed end-stage renal disease.Conclusion: Anterior urethral valve is a rare congenital entity affecting the genitourinary system in males. Early urinary tract obstruction resulted in end-stage renal disease in 18% of our patient population. In our series, the complication rate and the evolution to renal failure are high and similar to patients with PUV. In patients with AUVs we recommend long-term follow up and close evaluation of patient’s bladder and renal function.

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Section: Discussionmentioning

confidence: 99%

Anterior Urethral Valves: Not Such a Benign Condition…

et al. 2013

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“…Some have been proposed as possible mechanisms that are related to embryonic urethral development defects and the valve formed by excessive urethral tissue during embryonic development (11). It has also been reported that AUV and diverticulum formation may result from the distal tip of a ruptured syringocele (12,13). AUV is manifested as a mucosal fold in the urethra, located generally along the ventral surface of the urethra.…”

Section: Discussionmentioning

confidence: 99%

Case Report: Neonatal Urinary Ascites Without Hydronephrosis: A Rare Case of Anterior Urethral Valve and Diverticulum in Preterm Newborn

Lin²,

Li³

et al. 2022

Front. Pediatr.

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The deformation of congenital obstruction of the anterior urethra is rare in male infants. The anterior urethral valve (AUV) and diverticulum are not common causes of distal urethral obstruction, which may be significant but difficult to diagnose in time. We describe a premature infant who was diagnosed with AUV as part of a diverticulum in the anterior urethra and was presented as massive urinary ascites without hydroureters and hydronephrosis. After indwelling abdominal tube and urinary catheterization, the infant’s massive ascites were resolved, while urethral obstruction had successful treatment by Holmium laser. We suggest that the presence of urinary ascites in fetuses and neonates should be considered as a warning against urinary malformations.

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“…Acquired diverticula are only slightly more frequent than congenital ones. In 50% of these cases peri-urethral suppuration was the promoting etiology (other etiologies are: anterior urethral valves in children [1,2] and ectopic ureter). All were found to have a posterior urethral diverticulum thought to represent the remains of the original recto-urethral fistula accompanying the high rectal atresia [4].…”

Section: Discussionmentioning

confidence: 99%

“…The anterior urethra and peno-scrotal junction were the most commonly affected sites. Complications included urethra-cutaneous fistula [5], urethral stricture [2] and wound infection [4]. …”

Section: Discussionmentioning

confidence: 99%

Giant urethral diverticulum’s caused by traumatic vesicle catheterization in children: a case report

Kkhattala¹,

Raiss²,

Elmadi³

et al. 2011

Pan Afr Med Jrnl

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Urethral diverticula are saclike dilations of the urethra and are classified as either congenital or acquired. While urethral diverticula are commonly seen in female patients, they are rarely seen in men. The most common etiologies of male acquired diverticula include urethral trauma, stricture, abscess or post-hypospadias repair. We report a case of acquired urethral diverticula caused by a traumatic vesical catheterization in a 6-year old boy and review the literature on the topic.

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Anterior urethral valves in children: A possible association between anterior urethral valves and Cowper’s duct cyst

Cited by 9 publications

References 8 publications

Anterior Urethral Valves: Not Such a Benign Condition…

Anterior Urethral Valves: Not Such a Benign Condition…

Case Report: Neonatal Urinary Ascites Without Hydronephrosis: A Rare Case of Anterior Urethral Valve and Diverticulum in Preterm Newborn

Giant urethral diverticulum’s caused by traumatic vesicle catheterization in children: a case report

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