Correlation of quantitative amniotic fluid cultures with endometritis after cesarean section |
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Authors: | Jorge D. Blanco Ronald S. Gibbs Yolanda S. Castaneda Patricia J.St. Clair |
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Affiliation: | Department of Obstetrics and Gynecology, The University of Texas Health Science Center at San Antonio San Antonio, Texas, USA |
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Abstract: | At the time of cesarean section, amniotic fluid was collected transabdominally from 60 patients, and quantitative cultures were performed on the amniotic fluid. A culture was defined as positive if ≥102 colony-forming units per milliliter of a high-virulence organism were isolated. Any other result was defined as negative. In 24 patients with no labor or rupture of the membranes, no positive cultures were found, but there was a 25% incidence of endometritis. Among 36 patients with labor or rupture of the membranes, or both, 13 (36%) had a positive culture. Twelve of the 13 (92%) developed endometritis, whereas nine of the 23 (39%) patients with a negative culture had endometritis (p < 0.002). The usual clinical risk factors for endometritis were not different between the positive and negative culture groups. However, the patients with positive cultures had a significantly shorter time interval from cesarean section to endometritis than did the patients with negative cultures (p < 0.02). There was an excellent correlation between a positive amniotic fluid culture and endometritis after cesarean section. |
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Keywords: | Reprint requests: Jorge D. Blanco M.D. Department of Obstetrics and Gynecology The University of Texas Health Science Center at San Antonio 7703 Floyd Curl Dr. San Antonio Texas 78284 |
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