Postural Proteinuria Associated With Left Renal Vein Entrapment: A Follow-up Evaluation

Gregorio P. Milani, M. B M Mazzoni, Larry Burdick, Mario G. Bianchetti, Emilio F. Fossali

Research output: Contribution to journalArticlepeer-review

Abstract

Imaging studies show entrapment of the left renal vein in the fork between the aorta and proximal superior mesenteric artery in most cases of isolated postural proteinuria. Therefore, it has been postulated that partial obstruction to the flow in the left renal vein in the upright position is a cause of this form of proteinuria. In a girl with isolated postural proteinuria, kidney ultrasonic imaging and Doppler flow scanning showed left renal vein entrapment. Seven years later, a new evaluation showed resolution of both postural proteinuria and left renal vein entrapment. The longitudinal observation provides substantial additional support for entrapment of the left renal vein by the aorta and superior mesenteric artery as a cause of isolated postural proteinuria.

Original languageEnglish
JournalAmerican Journal of Kidney Diseases
Volume55
Issue number6
DOIs
Publication statusPublished - Jun 2010

Keywords

  • Aortomesenteric left renal vein entrapment
  • postural proteinuria
  • proteinuria

ASJC Scopus subject areas

  • Nephrology

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