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KMID : 0358419790220030187
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Korean Journal of Obstetrics and Gynecology
1979 Volume.22 No. 3 p.187 ~ p.195
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Clinical Observation on Placenta Previa
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이강보/Lee KB
유명숙/이명근/박인서/Yoo MS/Lee MK/Park IS
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Abstract
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The data to be presented below are based on 149 cases of placenta previa seen among the 17,220 deliveries at Department of Obstetrics and Gynecology, N.M.C. from 1964 to Dec. 1977. The summary of results are as follows; 1. Incidence of the placenta previa was one in 116 deliveries(0.9%) and no remarkable differences in annual incidence had been noted. 2. 78 cases(52.3%) were total placenta previa and remainders were 43 cases of partial placenta previa(28.9%) and 28 cases of lower lying placenta(18.8%). 3. Significant increase in incidence of placenta previa had been noted with increasing material age and parity. Placenta previa had occurred about 5 time more often in women over 36 years of age than in younger, and about 3 times more frequently in multigravida than in primigravida. 4. 114 cases were of gestational weeks less than 35 week(76.5%) and incidence decreased as gestational age increases. 5. While all patients experienced vaginal bleeding, labor pain were noted in 36.2% only. Number of cases with overt shock following brisk vaginal bleeding were 8(5.3%). The possibility of placenta previa should be kept in mind in managing patients with vaginal bleeding associated with malpresentation in that abnormal presentation had been noted in as much as 23.5% of cases. 6. The amount of vaginal bleeding in the majority of cases was less than 1,000ml needing only one to two pints of whole blood. Bleeding not exceeding 250ml without need for transfusion occurred in 2 cases. Prompt replacement of blood and C-section made it possible to get rid of maternal mortality following vaginal bleeding. 7. Hemoglobin level were less than 10gm/이 in 78 cases(52.4%) and 10 cases had Hemoglobin less than 6.0gm/이. 8. Expectant observation were instituted in patients with negligble bleeding and no labor pain. Vaginal delivery was accomplished successfully in 36 cases(24.1%). 9. In viewing mode of C-section, 82 cases were done in lower transverse incision, 19 cases in classical section and Cesarean hysterectomy in 12
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