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Doctor insights on: Fetal Hydronephrosis

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What is severe fetal hydronephrosis?

What is severe fetal hydronephrosis?

Trapped urine.: Severe fetal hydronephrosis is diagnosed when urine is trapped inside the renal collecting system of a fetus with resultant destruction of kidney tissue. It can be due to stenosis or obstruction at various points in the urinary tract and merits postnatal antibiotic uroprophylaxis and imaging. Bilateral severe cases may cause oligohydramnios and fetal lung hypoplasia or demise. Seek mfm care asap! ...Read more

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Dr. Ira Katz
143 doctors shared insights

Hydronephrosis (Definition)

A condition characterized by excess fluid in a kidney due to ...Read more


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How is fetal hydronephrosis diagnosed?

How is fetal hydronephrosis diagnosed?

Maternal ultrasound: Can sometimes already be detected after 10-12 weeks gestation. More commonly in mid to late pregnancy. Sometimes suspected and found in presence of oligohydramnios (reduced amniotic fluid). ...Read more

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What to do if I'm 36 wks preg, baby is diagnosed fetal hydronephrosis,renal pelvis measures 7.5cm,will she lose her kidney?

What to do if I'm 36 wks preg, baby is diagnosed fetal hydronephrosis,renal pelvis measures 7.5cm,will she lose her kidney?

Do nothing now: Baby is almost certainly perfectly OK. If renal pelvis 7.5mm, nothing to worry about & will 99 - 100% settle down as a normal kidney. 7.5 cm is very large & will almost certainly require intervention. Will require:- pediatric urologist, post natal US , VCUG & nuclear scan after birth to evaluate swollen kidney for function. Removal only if no or essentially no function. Life with 1 kidney is OK. ...Read more

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I'm 36 weeks pregnant with fetal bilateral hydronephrosis, do ihave to undergo a c-section asap?

I'm 36 weeks pregnant with fetal bilateral hydronephrosis, do ihave to undergo a c-section asap?

See Pedi Urologist: Bilat hydronephrosis can indicate several different problems. You should involve a pediatric urologist promptly. In the male fetus, this can indicate posterior urethral valves which needs to be addressed immediately upon delivery. It could also indicate bilateral vesico-ureteral reflux or obstruction where the kidneys drain into the ureters (upj-obstruction) either way, see peds uro stat. ...Read more

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33 wk pregnant, Dx hydronephrosis of 1kidney, was 10 last month now 12. Wants weekly ultrasound and 2xwk fetal mon. Excessive?

33 wk pregnant, Dx hydronephrosis of 1kidney, was 10 last month now 12. Wants weekly ultrasound and 2xwk fetal mon. Excessive?

Here are some...: Why don't you bring this concern to your obs-doc? Clinically, at this stage of pregnancy, it is practically unnecessary to frequently repeat ultrasound imaging since there would be nothing that needs or could be done. At most, repeat it once before childbirth is taking place so to get idea if fetal hydronephrosis may interfere natural delivery; if possible, C-section may be required. So, ask doc.. ...Read more

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What is fetal hydrophrenosis?

What is fetal hydrophrenosis?

Swollen fetal kidney: Baby's kidney is swollen with urine. Very common & not serious if mild & only present on one side. Most commonly due to partial blockage to kidney pelvis (funnel draining urine). Can also be due to blockage at lower end of ureters, urethral valve blockage in boys or bladder reflux. Virtually never need to intervene before birth or deliver early. Best managed &/or counseled by pediatric urologist. ...Read more

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What is unilateral hydronephrosis?

What is unilateral hydronephrosis?

Hydronephrosis: Refers to fluid inside the kidney. This fluid is urine which is able to remain in the kidney because of a larger size of the renal pelvis. The renal pelvis is the part of the kidney where the urine collects prior to descending into the bladder. The size of the pelvis should not exceed 7 mm on ultrasound. Small increases have no clinical significance and may represent variants of normal. ...Read more

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What are the symptoms of hydronephrosis?

What are the symptoms of hydronephrosis?

Hydronephrosis: Swelling of the kidney due to backing up of urine caused by obstruction to its outflow can cause infection with shaking chills and fever and can cause back/flank pain. Sometimes it's silent,however. ...Read more

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How serious is developing hydronephrosis?

How serious is developing hydronephrosis?

It depends...: Hydronephrosis, typically diagnosed by a ct scan or an ultrasound, is distension of the portion of the kidney that collects the urine. There are many causes, but the most common in adults is obstruction to the flow of urine. Left untreated, this can lead to permanent kidney damage. You should see your urologist for further information. ...Read more

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Good treatments for hydronephrosis?

Good treatments for hydronephrosis?

Treat: This could be because of obstruction in ureter, bladder or urethra -in that case it should be relieved. It can also be from reflux without obstruction- which should be treated. ...Read more

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What are treatments for hydronephrosis?

What are treatments for hydronephrosis?

It depends on cause: Hydronephrosis is a descriptive term for "a lot of fluid in the kidney". It can have multiple causes: from congenital obstruction to stones to reflux of urine from the bladder. Sometimes hydronephrosis is the end result of one of the above conditions and does not require any treatment. By analogy it is like a headache which can be caused by several conditions: treat the cause of the headache. ...Read more

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What's the treatment for a child who has hydronephrosis?

What's the treatment for a child who has hydronephrosis?

Observe vs repair: Most cases of hydronephrosis in children do not require treatment. In general, it is caused by either partial obstruction of the ureter or bladder, by reflux up the ureter from the bladder, or by large urine production. In many cases, it is none of the above. It is important to have an evaluation to understand its cause and to determine the best means of observing it for deterioration. ...Read more

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Is it ok to drink lots of water if I have mild hydronephrosis?

Is it ok to drink lots of water if I have mild hydronephrosis?

Probably: In general, hydronephrosis is caused by either partial obstruction of the ureter or bladder, by reflux up the ureter from the bladder, or by large urine production. Excessive fluid intake may exacerbate this condition. It is important to have an evaluation to understand its cause and to determine the best means of observing it for deterioration. ...Read more

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What to expect at my first urology appointment for hydronephrosis?

What to expect at my first urology appointment for hydronephrosis?

Diagnosis: You'll get a directed history and physical exam followed by some form of imaging to confirm the location and extent of the blockage. This will then suggest likely causes and treatment options. ...Read more

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What is hydronephrosis? It showed up on a recent reneal ultrasound.

Swelling of kidney: According to the National Kidney Foundation, hydronephrosis is swelling of the kidney, usually due to blockage of urine so that it can't go from the kidney to the bladder. In some cases it causes symptoms (e.g. pain) and , in others, it does not. ...Read more

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Can you please describe left mega urethra and unilateral hydronephrosis?

Can you please describe left mega urethra and unilateral hydronephrosis?

Here are some...: Oftentimes, the described condition is a congenital anomaly resulting from poorly innervated distal atonic ureter, which is usually found incidentally on imaging studies for other reasons. Such adynomic segment and resulting massive ureteral dilation is prone to bleed upon trauma and to induce bacterial UTI so to precipitate active evaluation. More? Ask urologist or radiologist timely. ...Read more

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What is left mega urethra and unilateral hydronephrosis? What causes it?

What is left mega urethra and unilateral hydronephrosis? What causes it?

Here are some...: Oftentimes, the described condition is a congenital anomaly resulting from poorly innervated distal atonic ureter, which is usually found incidentally on imaging studies for other reasons. Such adynomic segment and resulting massive ureteral dilation is prone to bleed upon trauma and to induce bacterial UTI so to precipitate active evaluation. More? Ask urologist or radiologist timely. ...Read more

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How is diagnosis hydronephrosis secondary to staghorn calculi diagnosed?

How is diagnosis hydronephrosis secondary to staghorn calculi diagnosed?

CT scan is best: Kidney ultrasound is not the best modality for diagnosis of staghorn calculus. It is very good in diagnosing hydronephrosis. Most cost effective way, which will give an accurate diagnosis is a plain abdominal X-ray plus kidney ultrasound. ...Read more

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What does this diagnosis mean? Hydronephrosis secondary to staghorn calculi?

What does this diagnosis mean? Hydronephrosis secondary to staghorn calculi?

Stones : Staghorn calculi refers to large kidney stones filling up a significant portion of the renal collecting system. Hydronephrosis refers to a dilation of the collecting system likely as a result of the stones. You should most definitely seek care by a urologist. ...Read more