Frequent question: What causes a baby to have enlarged kidneys?

The kidneys may be missing or in a wrong position. A blockage of the outflow of urine or reverse flow of urine already in the bladder (called reflux) can cause the renal pelvis to become enlarged. This is usually called hydronephrosis.

Why would a baby have enlarged kidneys?

A kidney may swell if your baby’s ureter is blocked and urine can’t flow from the kidney to the bladder. Or your baby’s kidney may swell if urine that’s already in the bladder flows back up into the kidney.

What does an enlarged kidney in a child mean?

What causes hydronephrosis in children? Hydronephrosis can be caused by blockage at some part of the urinary tract or by reflux of urine (abnormal backflow of urine from the bladder). It can also be due to the abnormal development or formation of the kidney in the absence of obstruction or reflux.

Is enlarged kidneys common in fetus?

1) A prenatal ultrasound (ultrasound during pregnancy) may reveal a fetus with dilated kidneys. This occurs in 1 per 100 pregnancies.

Can hydronephrosis be cured in babies?

Treatment often depends on the underlying cause. Although surgery is sometimes needed, in many cases hydronephrosis resolves on its own as a child grows, and surgery is not necessary. Essentially, hydronephrosis can be boiled down to a problem of urine flow.

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How is infant hydronephrosis treated?

Older children may also have no symptoms if they have mild or moderate hydronephrosis, and the condition may disappear on its own. If your child has moderate to severe hydronephrosis, some symptoms may include: pain in the abdomen. pain in the side (flank pain)

How is fetal hydronephrosis treated?

Prenatal hydronephrosis is often treated with antibiotics to prevent kidney infections. The specific antibiotics used have very few side effects. In a small portion of cases, usually grade IV prenatal hydronephrosis, surgery may be needed to correct the problem.

Can hydronephrosis cause death in babies?

Eight fetuses with bilateral hydronephrosis had evidence of poor function: Three were not treated and died shortly after birth with small lungs and dysplastic kidneys; three others had diagnostic intervention that demonstrated irreversible disease and allowed termination of the pregnancy; two had obstruction …

Does enlarged kidney mean Down syndrome?

Less often, a dilated renal pelvis is an early sign of a more serious problem with the bladder, kidney, or ureter. Down syndrome: Some studies suggest a small chance for Down syndrome with this ultrasound finding.

Is hydronephrosis genetic?

Minimal hydronephrosis is not genetic and is not hereditary. However, hydronephrosis may coincidentally occur in future pregnancies. If UPJ obstruction is determined to be the cause of the hydronephrosis, the chances for future children with the same obstruction may be as high as 50 percent.

Can hydronephrosis cause preterm labor?

The clinical significance of symptomatic hydronephrosis in pregnancy is its possible association with imminent complications. These include ureteric obstruction and pain, infection and deteriorating renal function. These may lead to maternal sepsis and threatened miscarriage or preterm labour.

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Is hydronephrosis related to Down syndrome?

Mild hydronephrosis is commonly found in association with Down syndrome and should prompt evaluation of fetal anatomy to identify other congenital anomalies.

Can severe fetal hydronephrosis correct itself?

Unborn babies with fetal hydronephrosis do not typically experience problems in the womb. In half of all cases, the condition resolves on its own by the third trimester. If the condition persists, it usually improves after childbirth without treatment.

Is hydronephrosis life threatening?

It is important to seek help if you experience this condition, since untreated hydronephrosis can lead to permanent loss of kidney function, a life-threatening condition. Hydronephrosis may be unilateral, involving one kidney, or bilateral, involving both.

How long does hydronephrosis last?

Kidney function will begin decreasing almost immediately with the onset of hydronephrosis but is reversible if the swelling resolves. Usually kidneys recover well even if there is an obstruction lasting up to 6 weeks.