Random urine protein/creatinine ratio readily predicts proteinuria in preeclampsia
Obstetrics & Gynecology Science
;
: 8-14, 2013.
Artigo
em Inglês
| WPRIM
| ID: wpr-170625
ABSTRACT
OBJECTIVE:
To assess the diagnostic accuracy of random urine protein-creatinine (P/C) ratio for prediction of significant proteinuria in preeclampsia as an alternative to the time-consuming 24-hour urine protein collection.METHODS:
Retrospective record analysis was performed on 140 pregnant women who were admitted with suspicion for preeclampsia from January 2006 to June 2011. Random urine protein and/or 24-hour urine protein levels were assessed and their correlation to random urine P/C ratio and 24-hour urine protein excretion was evaluated.RESULTS:
Out of 140 patients, random urine P/C ratio or/and 24-hour urine protein was performed in 79 patients to evaluate significant proteinuria. Of 79 patients, 46 (58%) underwent both tests whereas in 33 women (42%) 24-hour urine collection was not available due to urgent delivery. In 39 cases (85%), significant proteinuria (> or =300 mg/24 hr) was detected with 6 cases (13%) having values over 5,000 mg/24 hr, corresponding to the diagnosis of severe preeclampsia. Random urine P/C ratio highly correlated with 24-hour urine protein excretion (r=0.823, P<0.01). The optimal random urine P/C ratio cutoff points were 0.63 and 4.68 for 300 mg/24 hr and 5,000 mg/24 hr of protein excretion, respectively. with each sensitivity, specificity, and positive and negative predictive values of 87.1%, 100%, 100%, and 58.3%; and 100%, 85%, 50%, and 100%, for significant and severe preeclampsia, respectively.CONCLUSION:
Random urine P/C ratio is a reliable indicator of significant proteinuria in preeclampsia and may be better at providing earlier diagnostic information than the 24-hour urine protein excretion with more accuracy than the urinary dipstick test.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Pré-Eclâmpsia
/
Proteinúria
/
Estudos Retrospectivos
/
Sensibilidade e Especificidade
/
Gestantes
/
Coleta de Urina
Tipo de estudo:
Estudo diagnóstico
/
Estudo observacional
/
Estudo prognóstico
/
Fatores de risco
Limite:
Feminino
/
Humanos
Idioma:
Inglês
Revista:
Obstetrics & Gynecology Science
Ano de publicação:
2013
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS