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Bouzari Z, Shahhosseini R, Mohammadnetaj M, Barat S, Yazdani S, Hajian-Tilaki K. Vaginal discharge concentrations of β-human chorionic gonadotropin, creatinine, and urea for the diagnosis of premature rupture of membranes. Int J Gynaecol Obstet 2017; 141:97-101. [PMID: 29197087 DOI: 10.1002/ijgo.12414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 08/13/2017] [Accepted: 11/30/2017] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To determine the diagnostic value of vaginal discharge concentrations of β human chorionic gonadotropin (β-hCG), creatinine, and urea to identify premature rupture of membranes (PROM). METHODS An observational cross-sectional study was conducted between 12 June, 2014, and 11 June, 2015, among 120 women who were admitted to an Iranian hospital at 28-41 weeks of pregnancy. Women with positive pooling and nitrazine test results were assigned to the PROM group (n=60), whereas those with negative test results were assigned to the control group (n=60). Samples of vaginal discharge were obtained. RESULTS Mean concentrations of β-hCG, urea, and creatinine were all higher in the PROM group than in the control group (all P=0.001). The diagnostic accuracies as defined by area under the curve for creatinine, urea, and β-hCG were 0.891, 0.895, and 0.908, respectively. The corresponding optimal cutoff values were 20.33 μmol/L, 0.94 mmol/L, and 39.5 IU/L, respectively. CONCLUSION The vaginal discharge concentrations of all three markers exhibited favorable predictive value for the diagnosis of PROM; however, β-hCG showed greater diagnostic accuracy than either urea or creatinine.
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Affiliation(s)
- Zinatossadat Bouzari
- Infertility and Health Reproductive Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Clinical Research Development Center of Rohani Hospital, Babol University of Medical Sciences, Babol, Iran.,Department of Gynecology and Obstetrics, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Roza Shahhosseini
- Student Committee Research Department of Obstetrics and Gynecology, Babol University of Medical Sciences, Babol, Iran
| | | | - Shahnaz Barat
- Infertility and Health Reproductive Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Gynecology and Obstetrics, School of Medicine, Babol University of Medical Sciences, Babol, Iran.,Cancer Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Shahla Yazdani
- Infertility and Health Reproductive Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Clinical Research Development Center of Rohani Hospital, Babol University of Medical Sciences, Babol, Iran.,Department of Gynecology and Obstetrics, School of Medicine, Babol University of Medical Sciences, Babol, Iran.,Cancer Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Karimollah Hajian-Tilaki
- Social Determinants of Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Mobility Impairment Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.,Department of Statistics and Epidemiology, School of Medicine, Babol University of Medical Sciences, Babol, Iran
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