PMID- 2462885 OWN - NLM STAT- MEDLINE DCOM- 19890216 LR - 20151119 IS - 0735-1631 (Print) IS - 0735-1631 (Linking) VI - 6 IP - 1 DP - 1989 Jan TI - Diagnosis of intra-amniotic infection: the acridine orange stain. PG - 41-5 AB - The rapid diagnosis of intra-amniotic infection in patients with premature rupture of the membranes (PROM) and preterm labor is of utmost importance. The Gram's stain examination of amniotic fluid can only detect half of these infections. The acridine orange (AO) stain has been claimed to be superior to the Gram's stain in the detection of bacteria in biologic fluids. Therefore, we undertook the present study to examine the value of AO in the detection of bacteria in amniotic fluid. One hundred and thirty-eight patients with a culture-documented prevalence of intra-amniotic infection of 23.2% were studied. The diagnostic indices of the AO were: sensitivity, 43.8%, specificity, 97.2%, positive predictive value, 82.8%, and negative predictive value, 85.1%; the diagnostic indices for the Gram's stain were: sensitivity, 46.8%, specificity, 98.1%, positive predictive value, 88.2%, and negative predictive value, 85.9%. There was no difference in the diagnostic values of the tests. The agreement between the two techniques was substantial, as indicated by a kappa index of 0.72 (SE = 0.17, p less than 0.001). The AO offered no significant advantage over the Gram's stain examination of amniotic fluid in the detection of intra-amniotic infection. However, the AO stain was able to identify mycoplasma infections that escaped detection by the Gram's stain. Therefore, the AO is presently the only microscopic technique capable of detecting mycoplasma in amniotic fluid. FAU - Romero, R AU - Romero R AD - Department of Obstetrics and Gynecology, Yale University School of Medicine, New Haven, Connecticut 06510. FAU - Emamian, M AU - Emamian M FAU - Quintero, R AU - Quintero R FAU - Wan, M AU - Wan M FAU - Scioscia, A L AU - Scioscia AL FAU - Hobbins, J C AU - Hobbins JC FAU - Edberg, S AU - Edberg S LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Am J Perinatol JT - American journal of perinatology JID - 8405212 RN - 0 (Gram's stain) RN - 0 (Phenazines) RN - F30N4O6XVV (Acridine Orange) RN - J4Z741D6O5 (Gentian Violet) SB - IM MH - *Acridine Orange MH - Amniotic Fluid/microbiology MH - Bacterial Infections/*diagnosis/etiology MH - Chorioamnionitis/*diagnosis/etiology MH - Female MH - Fetal Membranes, Premature Rupture/complications MH - Gentian Violet MH - Humans MH - Obstetric Labor, Premature/complications MH - Phenazines MH - Pregnancy MH - Staining and Labeling EDAT- 1989/01/01 00:00 MHDA- 1989/01/01 00:01 CRDT- 1989/01/01 00:00 PHST- 1989/01/01 00:00 [pubmed] PHST- 1989/01/01 00:01 [medline] PHST- 1989/01/01 00:00 [entrez] AID - 10.1055/s-2007-999542 [doi] PST - ppublish SO - Am J Perinatol. 1989 Jan;6(1):41-5. doi: 10.1055/s-2007-999542.