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PubMed · 450354

Midtrimester placenta previa: normal or pathologic finding.

S Ballas·S Gitstein·A J Jaffa·M R Peyser
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Abstract

During the years 1974-1977 ultrasonic placentography demonstrated midtrimester placenta previa (MTPP) in 123 women. The procedure was performed because of vaginal bleeding in 65 cases and prior to amniocentesis in 58 asymptomatic cases. Eighty-eight patients were found to have grade I placenta previa (PP), 12 to have grade II, 14 to have grade III, and 9 patients to have grade IV PP. These different variants of PP were correlated with the ultimate outcome of these pregnancies: Bleeding due to PP or PP at term were reasons for cesarean section in 4 cases of grade I PP, in 2 cases of grade II, in 7 cases of grade III, and in 7 out of 9 cases of grade IV PP. Among those patients who had grades III and IV PP, 13 out of 23 had premature or immature deliveries. These results suggest that finding of MTPP, especially symptomatic MTPP, should alert the physician to the clinical significance of PP later in pregnancy.

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Cesarean SectionDelivery, ObstetricFemaleHumansInfant, NewbornInfant, PrematurePlacenta PreviaPregnancyPregnancy Trimester, ThirdUltrasonographyUterine HemorrhageJournal Article

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BibTeXRIS

S Ballas, S Gitstein, A J Jaffa, M R Peyser. 1979. Midtrimester placenta previa: normal or pathologic finding.. https://doi.org/10.1097/00006250-197907000-00003

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The cost-effectiveness of elective Cesarean delivery to prevent hepatitis C transmission in HIV-coinfected women.

OBJECTIVES: To determine the net health consequences, costs, and cost-effectiveness of elective Cesarean delivery (C-section) to prevent perinatal transmission of hepatitis C virus (HCV) in HIV/HCV-coinfected women with suppressed HIV RNA but detectable HCV RNA. DESIGN: Cost-effectiveness analysis using a probabilistic decision model. METHODS: The model compared two strategies: (i) C-section for all coinfected women with suppressed HIV RNA but detectable HCV RNA; (ii) C-section only when indicated based on fetal status. Outcomes included vertical transmission of HCV, maternal mortality, quality-adjusted life expectancy, delivery and HCV treatment costs, and incremental cost-effectiveness ratios. Data were obtained from the literature and national databases. Delivery cost data were from a hospital consortium database. Probability distributions were derived from published confidence intervals or estimated ranges, or calculated using reported sample sizes. RESULTS: Elective C-section in coinfected women with suppressed HIV RNA but detectable HCV RNA would avoid 45 vertical HCV transmissions per 1000 deliveries and increase maternal mortality by one death per 100 000 deliveries. The incremental cost-effectiveness ratio of a recommendation for C-section versus current practice was 3900-6100 dollars per quality-adjusted life year for the mother-child pair. Results are sensitive to the efficacy of C-section in preventing transmission, the probability of vaginal delivery without a recommendation, and rates of maternal acceptance of the recommendation. CONCLUSIONS: Assuming 2000 births/year among HIV/HCV-coinfected women in the United States, a recommendation for elective C-section in these women could avoid an additional 90 perinatal HCV transmissions per year with a risk of one maternal death in 50 years.

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