Urinary diagnostic indices in preeclampsia-associated oliguria: correlation with invasive hemodynamic monitoring |
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| Authors: | W Lee B Gonik D B Cotton |
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| Affiliation: | 1. Obstetrics Department, Hospital Clínico Lozano Blesa, Zaragoza, Spain;2. Instituto de Investigación Sanitaria de Aragón, Zaragoza, Spain;3. Faculty of Economics and Business, University of Zaragoza, Spain;4. Unidad de Codificación e Información, ClínicaCoding and Clinical Information Unit, Hospital Clínico Lozano Blesa, Zaragoza, Spain;1. Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver BC;2. Perinatal Services British Columbia, Vancouver BC |
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| Abstract: | Seven oliguric women with preeclampsia were identified among patients admitted for obstetric care at Jefferson Davis or Hermann Hospitals in Houston, Texas. Urinary diagnostic indices (including urine-to-plasma ratios of creatinine, urea nitrogen, and osmolality) were generally consistent with a prerenal etiology for the observed oliguria. Conversely, invasive hemodynamic monitoring revealed a volume replete state in five of seven preeclamptic women studied. All patients were observed to have markedly elevated urinary sodium concentrations. The transient oliguria observed in these patients spontaneously resolved without diuretic or hyperosmolar agents. We conclude that oliguria is a poor index of volume status in preeclamptic women. Urinary diagnostic indices may also be misleading if used to guide fluid management in these patients. Finally, the clinical significance and therapeutic alternatives relating to preeclampsia-associated oliguria are discussed. |
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