Pediatric Urology Academy

Season 2 – Episode 5 Deflux Twenty Years Later: What Have We Really Learned? A five-year-old girl has persistent grade III vesicoureteral reflux. She has breakthrough febrile urinary tract infections despite bladder rehabilitation and antibiotic prophylaxis. Her parents ask, “Should we choose Deflux or open surgery?” The question sounds simple. The answer is not. When Deflux was introduced, it gen...

Season 2 – Episode 4 DMSA: Are We Looking for Reflux, or Are We Looking for Kidney Damage? A three-year-old boy has his second febrile urinary tract infection. His VCUG shows grade II vesicoureteral reflux. His parents ask, “Should he have a DMSA scan?” The answer depends on another question. What are we trying to discover? For years, vesicoureteral reflux dominated clinical thinking. The VCUG bec...

A four-year-old girl has persistent grade III vesicoureteral reflux. She has received antibiotics for two years. She has undergone two VCUGs. Her reflux has not changed. Then someone asks a question that should have been asked at the first visit. “How often does she have a bowel movement?” Everything changes. One of the biggest misconceptions in vesicoureteral reflux is that the disease begins at...

A one-year-old boy has grade IV vesicoureteral reflux after his first febrile urinary tract infection. His parents ask a simple question. “Does he really need antibiotics every day?” The answer is no longer straightforward. For years, continuous antibiotic prophylaxis was almost automatic. If reflux was present, antibiotics followed. The goal was simple. Prevent infection. Protect the kidney. Then...

A two-year-old girl presents with her first febrile urinary tract infection. Her ultrasound is normal. Her VCUG shows grade III vesicoureteral reflux. What should happen next? For decades, the answer seemed obvious. Treat the reflux. Today, that question has changed. The real question is not whether reflux exists. It is whether this child is truly at risk for kidney injury. That shift has transfor...

Imagine two boys. Both receive an excellent living-donor kidney transplant. Both leave the hospital with normal serum creatinine. Ten years later, one has a healthy graft. The other has recurrent urinary tract infections, worsening hydronephrosis, and declining renal function. What changed? Not the kidney. The bladder. One of the biggest misconceptions in pediatric urology is that transplantation...

A newborn undergoes successful valve ablation. The obstruction is gone. So why do some boys still develop bladder failure years later? Perhaps we have been asking the wrong question. The real goal is not to remove the valves. The real goal is to prevent the bladder from entering an irreversible cycle of remodeling. Valve bladder syndrome is not an event. It is a process. And like every process, it...

A six-month-old boy returns after successful valve ablation. His serum creatinine is stable. He is growing well. The ultrasound still shows hydronephrosis. Has the kidney improved? Or is it quietly deteriorating? We often ask whether hydronephrosis is better or worse. Experienced pediatric urologists ask a different question. What is the kidney trying to tell us? Ultrasound is the most frequently...

A newborn boy undergoes successful valve ablation. His creatinine begins to fall. One kidney has severe reflux. The other appears relatively normal. Someone says, “He has a pop-off. That’s a good sign.” Is it? For decades, pediatric urologists believed that certain pressure-release mechanisms protected the urinary tract from the full effects of posterior urethral valves. The best-known example was...

A six-year-old boy returns for follow-up after successful valve ablation. His creatinine is stable. His kidneys look unchanged on ultrasound. He has no urinary tract infections. But his bladder may still be changing. Should every boy undergo urodynamics? Most pediatric urologists agree that some boys clearly need it. The controversy is whether every boy does. For years, many clinicians adopted rou...

Parents ask one question more than any other after successful valve ablation. Will my son eventually develop kidney failure? It is one of the hardest questions in pediatric urology. Surprisingly, the best answer often comes from a single laboratory test. Nadir serum creatinine. Despite advances in imaging, genetics, biomarkers, and artificial intelligence, no other clinical variable has consistent...

Why do some patients develop kidney deterioration years after successful PUV ablation? This episode examines valve bladder syndrome, bladder remodeling, urodynamic evolution, and the growing evidence that long-term outcomes may be driven by bladder dysfunction rather than persistent obstruction.

Posterior urethral valves are the most common cause of congenital bladder outlet obstruction in boys and a major cause of chronic kidney disease. This episode explores why successful valve ablation does not always prevent long-term renal deterioration.

Pediatric Urology Academy is an evidence-based educational podcast hosted by Amin Afrasiabi, MD, Pediatric Urologist. The podcast reviews clinical cases, landmark studies, controversies, and practical decision-making in pediatric urology. Topics include posterior urethral valves, vesicoureteral reflux, hydronephrosis, ureteropelvic junction obstruction, neurogenic bladder, hypospadias, disorders o...