CUA: Antenatal hydronephrosis (2017): Difference between revisions

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==== Diuretic renography ====

* '''<span style="color:#ff0000">MAG3 diuretic renogram is test of choice for the assessment of the function of a hydronephrotic kidney ~~as it permits~~ assessment of both the differential renal function (DRF) and the drainage time.'''

* '''<span style="color:#ff0000">MAG3 diuretic renogram is test of choice for the assessment of the function of a hydronephrotic kidney'''

** ~~A dimercaptosuccinic~~ acid (DMSA) study can be considered to establish early split function in cases of neonates or premature infants, since the DRF in this study is not influenced by an immature GFR.

**'''<span style="color:#ff0000">Permits assessment of both the differential renal function (DRF) and the drainage time.'''

* ~~The diuretic renogram~~ should include a report of ~~the DRF~~, which can vary from 45‒55%~~; the cortical~~ transit time, which is normal up to 5 minutes~~; the half~~-time~~; and the shape~~ of the curve.

** Dimercaptosuccinic acid (DMSA) study can be considered to establish early split function in cases of neonates or premature infants, since the DRF in this study is not influenced by an immature GFR.

* Renogram should include a report of

**Differential renal function, which can vary from 45‒55%

**Cortical transit time, which is normal up to 5 minutes

**Half-time

**Shape of the curve

* '''Test results can be influenced by'''

** '''Poor renal function (single kidney glomerular filtration rate [GFR] <15 ml/min)'''

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** '''Dilated distal ureter'''

* Renograms can be performed at any age, as long as they are used as a baseline study for serial comparison'''.'''

* '''Indications'''

* '''Indications (1)'''

** '''APD >15 mm or ~~HGHN~~ (SFU 3-4) with VCUG was negative for VUR''' to identify other potential causes of hydronephrosis (such as UPJO, UVJO)

*# '''APD >15 mm or high-grade hydronephrosis (SFU 3-4) with VCUG was negative for VUR'''

** '''Not necessary in the evaluation of isolated LGHN (SFU 1‒2) with normal renal parenchyma and symmetric renal size'''

*#*'''To identify other potential causes of hydronephrosis (such as UPJO, UVJO)'''

*#'''Not necessary in the evaluation of isolated LGHN (SFU 1‒2) with normal renal parenchyma and symmetric renal size'''

=== Other ===

@@ Line 219: / Line 219: @@
 ==== Diuretic renography ====
-* '''<span style="color:#ff0000">MAG3 diuretic renogram is test of choice for the assessment of the function of a hydronephrotic kidney as it permits assessment of both the differential renal function (DRF) and the drainage time.'''
+* '''<span style="color:#ff0000">MAG3 diuretic renogram is test of choice for the assessment of the function of a hydronephrotic kidney'''
-** A dimercaptosuccinic acid (DMSA) study can be considered to establish early split function in cases of neonates or premature infants, since the DRF in this study is not influenced by an immature GFR.
+**'''<span style="color:#ff0000">Permits assessment of both the differential renal function (DRF) and the drainage time.'''
-* The diuretic renogram should include a report of the DRF, which can vary from 45‒55%; the cortical transit time, which is normal up to 5 minutes; the half-time; and the shape of the curve.
+** Dimercaptosuccinic acid (DMSA) study can be considered to establish early split function in cases of neonates or premature infants, since the DRF in this study is not influenced by an immature GFR.
+* Renogram should include a report of
+**Differential renal function, which can vary from 45‒55%
+**Cortical transit time, which is normal up to 5 minutes
+**Half-time
+**Shape of the curve
 * '''Test results can be influenced by'''
 ** '''Poor renal function (single kidney glomerular filtration rate [GFR] <15 ml/min)'''
@@ Line 229: / Line 234: @@
 ** '''Dilated distal ureter'''
 * Renograms can be performed at any age, as long as they are used as a baseline study for serial comparison'''.'''
-* '''Indications'''
+* '''Indications (1)'''
-** '''APD >15 mm or HGHN (SFU 3-4) with VCUG was negative for VUR''' to identify other potential causes of hydronephrosis (such as UPJO, UVJO)
+*# '''APD >15 mm or high-grade hydronephrosis (SFU 3-4) with VCUG was negative for VUR'''
-** '''Not necessary in the evaluation of isolated LGHN (SFU 1‒2) with normal renal parenchyma and symmetric renal size'''
+*#*'''To identify other potential causes of hydronephrosis (such as UPJO, UVJO)'''
+*#'''Not necessary in the evaluation of isolated LGHN (SFU 1‒2) with normal renal parenchyma and symmetric renal size'''
 === Other ===