title: Renal and vascular function in women with previous preeclampsia: a comparison of low- and high-degree proteinuria.
abstract: The degree of proteinuria during preeclampsia has been considered to be a marker of severity of the disease and of endothelial dysfunction. The aim of the study was to assess whether the degree of proteinuria in preeclamptic pregnancy is related to impairment of vascular dilatation and/or kidney function years after the index pregnancy. Thirty women with a history of severe preeclampsia divided into low (n=8, dU-prot <5 g/day) and high (n=22, dU-prot >/=5 g/day) proteinuric groups and 21 women with previous normotensive pregnancy were studied 5-6 years after index pregnancy. Renal function and blood pressure were assessed together with venous occlusion plethysmography, where changes in brachial artery blood flow, induced by intra-arterial infusions of an endothelium-independent (sodium nitroprusside) and an endothelium-dependent (acetylcholine) vasodilator, were measured. The results showed similar renal function in all groups. There was no difference in vasodilation between preeclamptic groups and controls or correlation between degree of proteinuria during index pregnancy and present vasodilation. We conclude that the degree of proteinuria during preeclampsia does not predict vascular dilatation or renal function 5-6 years after preeclamptic pregnancy.
authors.affiliation: Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Helsinki, Finland. katja.lampinen@karolinska.se
authors.forename: K H
authors.initials: KH
authors.lastname: Lampinen
authors.forename: M
authors.initials: M
authors.lastname: Rönnback
authors.forename: P-H
authors.initials: PH
authors.lastname: Groop
authors.forename: R J
authors.initials: RJ
authors.lastname: Kaaja
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000328:Adult; D001794:Blood Pressure / Q000187:drug effects / Q000502:physiology; D001916:Brachial Artery / Q000502:physiology; D002319:Cardiovascular System / Q000187:drug effects / Q000503:physiopathology; D005260:Female; D006801:Humans; D007668:Kidney / Q000503:physiopathology*; D009599:Nitroprusside / Q000494:pharmacology; D011225:Pre-Eclampsia / Q000503:physiopathology* / Q000652:urine*; D011237:Predictive Value of Tests; D011247:Pregnancy; D011507:Proteinuria / Q000503:physiopathology* / Q000652:urine; D012039:Regional Blood Flow / Q000187:drug effects / Q000502:physiology; D014664:Vasodilation / Q000187:drug effects / Q000502:physiology*; D014665:Vasodilator Agents / Q000494:pharmacology
chemical_list: D014665:Vasodilator Agents; D009599:Nitroprusside; D000109:Acetylcholine