Renal Venous Thrombosis in Neonates

ISSN: 1875-6336 (Online)
ISSN: 1573-3963 (Print)

Volume 13, 4 Issues, 2017

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Current Pediatric Reviews

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Giuseppe Buonocore
Department of Molecular and Developmental Medicine
University of Siena

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Renal Venous Thrombosis in Neonates

Current Pediatric Reviews, 10(2): 101-106.

Author(s): Asha Moudgil.

Affiliation: Professor of Pediatrics, Attending, Nephrologist, Children's National Medical Center, 111 Michigan Ave NW, WW 1.5, Suite 100, Washington, DC, USA 20010.


Neonatal renal vein thrombosis (RVT) is associated with potentially serious morbidities. Almost 80% of cases of RVT present within the first postnatal month. The most common risk factors for RVT are birth asphyxia/ in utero fetal distress, being the infant of a diabetic mother, volume contraction and coagulation abnormalities. Thrombus formation may be initiated by vascular injury, diminished vascular flow, increased blood viscosity, hyperosmolality or underlying thrombophilia. The classic triad of RVT includes gross hematuria, flank mass (unilateral or bilateral enlargement of kidneys) and thrombocytopenia. Laboratory tests may reveal hematuria, proteinuria, polycythemia, hemolytic anemia, thrombocytopenia and possibly acute kidney injury. The etiology for a hypercoagulable state should be investigated. Renal ultrasound with Doppler may show increased size of the affected kidney, increased echogenicity and loss of corticomedullary differentiation. Renal venography remains the gold standard for the diagnosis of RVT. Other causes of renal enlargement must be considered. Supportive treatment includes correction of fluid and electrolyte disturbances and treatment of infection and underlying pathophysiologic abnormalities. Use of unfractionated heparin (UFH) or low molecular weight heparin (LMWH) should be considered if there is evidence of disseminated intravascular coagulation. Conventional anticoagulants may attenuate hypercoagulability and decrease the risk for thrombus progression and embolism. Surgery is rarely indicated unless there is bilateral involvement with involvement of the IVC. RVT carries the risk of hypertension and chronic kidney disease.


Acute kidney injury, hematuria, hypertension, oliguria.

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Article Details

Volume: 10
Issue Number: 2
First Page: 101
Last Page: 106
Page Count: 6
DOI: 10.2174/157339631002140513101845
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