ABSTRACT
OBJECTIVE: To investigate the infection rate and clinical importance of Mycoplasma hominis (M. hominis) in comparison with Ureaplasma urealyticum (U. urealyticum) in association with preterm labor and preterm rupture of membranes. METHODS: We included 57 women with preterm labor or preterm rupture of membranes admitted at Kangnam St. Mary Hospital, University of Catholic, from March 2002 to April 2003. Mycoscreen kit (Mycoscreen, international microbio, Paris, France) was used for culture of all specimens. Statistical analysis was done by chi-square test (SPSS). RESULTS: The study subjects included 57 women, 15 of premature rupture of membranes (PROM), 16 of preterm prematurely rupture of membranes (PPROM), and 36 of preterm labor. There were 4 women infected by both M. hominis and U. urealyticum, 21 with single infection by M. hominis, 9 with single infection by U. urealyticum, and 23 with negative results from Mycoscreen test. M. hominis infection was noted on 6 of 15 PROM, 5 of 16 PPROM and 2 of 36 preterm labor. And thus, infection by M. hominis is statistically significant in preterm rupture of membranes group in comparison with preterm group (p=0.038). Among 15 cases with leukocytosis on the Gram stain, 2 cases resulted in bacterial growth on the culture. Therefore, leukocytosis on the Gram stain does not show the infection with M. hominis and U. urealyticum. CONCLUSION: Mycoplasma screening in prenatal care provides the predictable information on preterm labor or low birth weight, and could be useful in predicting preterm rupture of membranes. It is thought that further studies are needed with a large number of samples.
Subject(s)
Female , Humans , Infant, Newborn , Pregnancy , Infant, Low Birth Weight , Leukocytosis , Mass Screening , Membranes , Mycoplasma hominis , Mycoplasma , Obstetric Labor, Premature , Prenatal Care , Rupture , Ureaplasma urealyticum , UreaplasmaABSTRACT
OBJECTIVE: To investigate the infection rate and clinical importance of Mycoplasma hominis (M. hominis) in comparison with Ureaplasma urealyticum (U. urealyticum) in association with preterm labor and preterm rupture of membranes. METHODS: We included 57 women with preterm labor or preterm rupture of membranes admitted at Kangnam St. Mary Hospital, University of Catholic, from March 2002 to April 2003. Mycoscreen kit (Mycoscreen, international microbio, Paris, France) was used for culture of all specimens. Statistical analysis was done by chi-square test (SPSS). RESULTS: The study subjects included 57 women, 15 of premature rupture of membranes (PROM), 16 of preterm prematurely rupture of membranes (PPROM), and 36 of preterm labor. There were 4 women infected by both M. hominis and U. urealyticum, 21 with single infection by M. hominis, 9 with single infection by U. urealyticum, and 23 with negative results from Mycoscreen test. M. hominis infection was noted on 6 of 15 PROM, 5 of 16 PPROM and 2 of 36 preterm labor. And thus, infection by M. hominis is statistically significant in preterm rupture of membranes group in comparison with preterm group (p=0.038). Among 15 cases with leukocytosis on the Gram stain, 2 cases resulted in bacterial growth on the culture. Therefore, leukocytosis on the Gram stain does not show the infection with M. hominis and U. urealyticum. CONCLUSION: Mycoplasma screening in prenatal care provides the predictable information on preterm labor or low birth weight, and could be useful in predicting preterm rupture of membranes. It is thought that further studies are needed with a large number of samples.
Subject(s)
Female , Humans , Infant, Newborn , Pregnancy , Infant, Low Birth Weight , Leukocytosis , Mass Screening , Membranes , Mycoplasma hominis , Mycoplasma , Obstetric Labor, Premature , Prenatal Care , Rupture , Ureaplasma urealyticum , UreaplasmaABSTRACT
BACKGROUND: The associations between preterm labor or premature rupture of membrane (PROM) and urogenital infections of pregnant women are reported. Ureaplasma urealyticum and Mycoplasma hominis are well known as important pathogens of urogenital infections in pregnant women. In routine clinical laboratory, conventional culture for these microorganisms has not been made generally because of the requirements for strict growth condition. MYCOFAST(R) Evolution 2 is an easy and rapid liquid microculture method using metabolism of these microorganisms. Author investigated the relationship between U. urealyticum or M. hominis infections and preterm labor or PROM by MYCOFAST Evolution 2 and PCR. Also it was reviewed that the possibility of substitution of MYCOFAST Evolution 2 for conventional culture method by comparing with PCR methods. METHODS: This study was done on 91 pregnant women. They were composed of two groups; group I(n=48) had full-term delivery and group II(n=43) had preterm labor or PROM before the 37th week.Two cervical swabs were made each time. One was used for MYCOFAST(R) Evolution 2 and the other for PCR. RESULTS: The positivity of U. urealyticum was 39.6% in group Iand 58.1% in group IIby MYCOFAST Evolution 2 and 39.6% and 58.1% by PCR method, respectively. The positivity of M. hominis was 4.2% in group Iand 11.6% in group IIby MYCOFAST Evolution 2 and 4.2% and 7.0% by PCR method, respectively. The positivity of U. urealyticum and M. hominis in group IIwas higher than that in group Ibut was not significant statistically. The concordance rates between two methods were 86.8% for U. urealyticum and 97.8% for M. hominis. It showed good correlation between two methods (U. urealyticum, r=0.736; M. hominis, r=0.835). CONCLUSIONS: The infections of U. urealyticum and M. hominis were related to preterm labor or PROM. Considering vertical transmission to fetus or neonates resulting in perinatal morbidity or mortality, the detection of these microorganisms is important. MYCOFAST(R) Evolution 2 was an easy, rapid and reliable method substituting conventional culture method.