What is Antenatally detected hydronephrosis?
What is antenatal hydronephrosis? Antenatal (before birth) hydronephrosis (fluid-filled enlargement of the kidney) can be detected in a fetus by ultrasound as early as the first trimester of a pregnancy. During pregnancy, this condition is identified in 1 percent of males and 0.5 percent of females.
What is the most common cause of hydronephrosis in infants?
The most likely causes of hydronephrosis in babies are: Blockages in the urinary tract. The blockage could be between the kidney and ureter, between the bladder and the ureter or in the urethra that leads out of the bladder.
What is the best treatment for hydronephrosis?
Hydronephrosis is usually treated by addressing the underlying disease or cause, such as a kidney stone or infection. Some cases can be resolved without surgery. Infections can be treated with antibiotics. A kidney stone can pass through by itself or might be severe enough to require removal with surgery.
How long does hydronephrosis take to resolve?
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.
How is antenatal hydronephrosis diagnosed?
The diagnosis of antenatal hydronephrosis is based on the degree of dilatation of the AP diameter of the renal pelvis. The limits of normalcy vary with the gestational age. What are the common causes of antenatal hydronephrosis?
What is hydronephrosis in newborns?
Hydronephrosis in newborns is enlargement, or dilation, of the renal pelvis—the basin in the central part of the kidney where urine collects. Hydronephrosis can occur in one or both kidneys. This condition is often diagnosed before birth during a prenatal ultrasound. In some cases, hydronephrosis is mild and goes away on its own without treatment.
What is the prevalence of antenatal hydronephrosis?
This condition occurs in 5 to 25 percent of children with antenatal hydronephrosis. A diuretic renal scan, which requires an IV and a catheter, may be conducted in more severe cases to diagnose obstruction. The renal scan is more accurate if delayed until the baby is one month of age.
What are the postnatal investigations for unilateral hydronephrosis?
Postnatal investigations for unilateral hydronephrosis or bilateral hydronephrosis in girls 2.If AP diameter > 10 mm start uroprophylaxis and do MCU after 6 weeks 3.If MCU shows no VUR , DTPA or EC scan at 2 months 3.If PUV , urine routine, RFT, catheterization and refer to pediatric surgeon How common is antenatally detected hydronephrosis?