Postural Proteinuria

2015 ◽  
pp. 224-228 ◽  
Author(s):  
Roscoe R. Robinson
Keyword(s):  
Postural Proteinuria

Postural Proteinuria

1951 ◽  
Vol 35 (4) ◽  
pp. 1017-1022 ◽  
Author(s):  
Thomas W. Parkin
Keyword(s):  
Postural Proteinuria

Left renal vein entrapment: a frequent feature in children with postural proteinuria

2008 ◽  
Vol 23 (10) ◽  
pp. 1837-1839 ◽  
Author(s):  
Monica Ragazzi ◽  
Gregorio Milani ◽  
Alberto Edefonti ◽  
Larry Burdick ◽  
Mario G. Bianchetti ◽  
...  
Keyword(s):  
Renal Vein ◽  
Left Renal Vein ◽  
Postural Proteinuria

Nutcracker syndrome and phenomenon

2015 ◽  
Author(s):  
John Neary ◽  
Neil Turner
Keyword(s):  
Renal Vein ◽  
Incidental Finding ◽  
Left Renal Vein ◽  
Stent Migration ◽  
Nutcracker Syndrome ◽  
Pain Syndromes ◽  
Asymptomatic Patients ◽  
Weak Evidence ◽  
Life Threatening ◽  
Postural Proteinuria

Nutcracker syndrome describes symptomatology associated with obstruction to the left renal vein caused by pressure from the overlying superior mesenteric artery. Modern imaging methods show that some degree of left renal vein obstruction may be a common incidental finding in asymptomatic patients so it is better described as ‘nutcracker phenomenon’, NCP. The association of NCP with symptoms and signs is often speculative. NCP may be seen at any age but most patients with symptoms attributed to it are teenagers or young adults. The strongest evidence is for association with episodic macroscopic haematuria. There is weak evidence that it may in some circumstances account for orthostatic (postural) proteinuria, microscopic haematuria, or pain syndromes. Apart from rare examples of extreme haemorrhage the syndrome has not been associated with life-threatening features other than through complications of treatment. Various interventions have been employed, recently most commonly endovascular or extravascular approaches to stenting the vein, but serious adverse consequences from stent migration and thrombosis have been described.

Glomerular Permeability to High Molecular Weight Dextrans in Acute Ischaemic Renal Failure and Postural Proteinuria

1970 ◽  
Vol 38 (1) ◽  
pp. 93-99 ◽  
Author(s):  
Pamela R. MacLean ◽  
J. J. B. Petrie ◽  
J. S. Robson
Keyword(s):  
Molecular Weight ◽  
Renal Failure ◽  
High Molecular Weight ◽  
Plasma Protein ◽  
Healthy Subjects ◽  
Plasma Proteins ◽  
Normal Subjects ◽  
Glomerular Permeability ◽  
Molecular Weight Range ◽  
Postural Proteinuria

1. Renal permeability to dextran of a molecular weight range approximating to that of the plasma proteins has been studied in six patients with acute ischaemic renal failure, four patients with postural proteinuria and six healthy subjects. 2. Results are expressed in terms of dextran selectivity indices which relate the clearance of dextran to its molecular weight. Indices of dextran selectivity were found to be high in acute ischaemic renal failure, postural proteinuria and in normal subjects. Comparable indices of plasma protein selectivity in these groups were low. 3. It is suggested that in postural proteinuria and acute ischaemic renal failure the proteinuria is not glomerular in origin, and that in these conditions macromolecules are filtered quite normally and urinary protein arises from a post glomerular source characterized by a lack of selectivity.

Postural Proteinuria

1966 ◽  
Vol 65 (2) ◽  
pp. 286 ◽  
Author(s):  
ROGER C. HERDMAN
Keyword(s):  
Postural Proteinuria

POSTURAL PROTEINURIA

The Lancet ◽  
1955 ◽  
Vol 266 (6881) ◽  
pp. 142
Author(s):  
Erik Löwgren
Keyword(s):  
Postural Proteinuria
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