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About Dr.Sujit

Dr. Sujit Chowdhary is a leading Pediatric Urologist in Delhi-NCR. He currently serves as the Senior Consultant for Pediatric Urology and Pediatric Neurosurgery at the prestigious Indraprastha Apollo Hospital, Delhi since 2005. Dr. Sujit has professional experience of over 25 years in the field of Pediatric Urology with absolutely zero complaints.

Antenatal Hydronephrosis

What is Antenatal Hydronephrosis?

It is a condition present before birth in the fetus itself. In antenatal hydronephrosis, the baby’s kidneys are enlarged and are filled with water. It is detected in the fetus via ultrasound in the early stages of the pregnancy and requires no special care at this stage. Most pediatric urologists initiate treatment only after the birth of the baby.

What causes antenatal hydronephrosis in Infants?

Being the congenital ailment it happens due to these abnormal developments in the fetus:

  • Blockage- This is usually present at UPJ in the kidney or bladder in the urethra.
  • Reflux- Due to Vesicoureteral flux condition where the valve between the bladder and ureter doesn’t work properly.
  • Multicystic kidney- The condition of an infant having a non-functional cystic kidney.
Antenatal Hydronephrosis

As the name’ Antenatal’ suggests it is present from before the birth. It is common for a woman to come for a regular ultrasound. And we can detect any abnormality in the fetus’s organ in the second trimester’s ultrasound itself.

  • More frequent ultrasounds to keep the check on the growth of the kidney.
  • CT Scan- This gives the 3-dimensional image and picture of the body’s organs.

Management of Antenatal Hydronephrosisc

Most of the time, no treatment is required for antenatal hydronephrosis as it heals on its own in the womb. The surgery should happen after 4-6 weeks after the birth of the baby as it boosts the chances of recovery. The treatment we give is dependent on the cause of hydronephrosis.

  • Antibiotics- This prevents the further infection of kidneys and lowers the risk of swelling and infection in an infant’s kidney.
  • A chemical substance is injected into the damaged bladder valve. This stops the vesicoureteral flux in kids.

Surgical Treatment:

We recommend this as the last resort when antibiotics fail to heal primary vesicoureteral flux. The surgery we perform is laparoscopic and the infant can recover quickly. Laparoscopic surgery- It is done to unblock one or both the ureters. It treats the urine blockage from the kidney to the bladder in UPJ obstruction. This is done laparoscopically with minimum side effects.


How common is antenatal hydronephrosis?

Is fetal hydronephrosis serious?

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