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Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo53
, , , , , , , , , , To evaluate the risk factors for postpartum hemorrhage (PPH) according to the Robson Classification in a low-risk maternity hospital.
We conducted retrospective cohort study by analyzing the medical records of pregnant women attended in a low-risk maternity hospital, during from November 2019 to November 2021. Variables analyzed were: maternal age, type of delivery, birth weight, parity, Robson Classification, and causes of PPH. We compared the occurrence of PPH between pregnant women with spontaneous (Groups 1 and 3) and with induction of labor (2a and 4a). Chi-square and Student t-tests were performed. Variables were compared using binary logistic regression.
There were 11,935 deliveries during the study period. According to Robson’s Classification, 48.2% were classified as 1 and 3 (Group I: 5,750/11,935) and 26.1% as 2a and 4a (Group II: 3,124/11,935). Group II had higher prevalence of PPH than Group I (3.5 vs. 2.7%, p=0.028). Labor induction increased the occurrence of PPH by 18.8% (RR: 1.188, 95% CI: 1.02-1.36, p=0.030). Model including forceps delivery [x2(3)=10.6, OR: 7.26, 95%CI: 3.32-15.84, R2 Nagelkerke: 0.011, p<0.001] and birth weight [x2(4)=59.0, OR: 1.001, 95%CI:1.001-1.001, R2 Nagelkerke: 0.033, p<0.001] was the best for predicting PPH in patients classified as Robson 1, 3, 2a, and 4a. Birth weight was poor predictor of PPH (area under ROC curve: 0.612, p<0.001, 95%CI: 0.572-0.653).
Robson Classification 2a and 4a showed the highest rates of postpartum hemorrhage. The model including forceps delivery and birth weight was the best predictor for postpartum hemorrhage in Robson Classification 1, 3, 2a, and 4a.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2024;46:e-rbgo53
, , , , , , , , , , To evaluate the risk factors for postpartum hemorrhage (PPH) according to the Robson Classification in a low-risk maternity hospital.
We conducted retrospective cohort study by analyzing the medical records of pregnant women attended in a low-risk maternity hospital, during from November 2019 to November 2021. Variables analyzed were: maternal age, type of delivery, birth weight, parity, Robson Classification, and causes of PPH. We compared the occurrence of PPH between pregnant women with spontaneous (Groups 1 and 3) and with induction of labor (2a and 4a). Chi-square and Student t-tests were performed. Variables were compared using binary logistic regression.
There were 11,935 deliveries during the study period. According to Robson’s Classification, 48.2% were classified as 1 and 3 (Group I: 5,750/11,935) and 26.1% as 2a and 4a (Group II: 3,124/11,935). Group II had higher prevalence of PPH than Group I (3.5 vs. 2.7%, p=0.028). Labor induction increased the occurrence of PPH by 18.8% (RR: 1.188, 95% CI: 1.02-1.36, p=0.030). Model including forceps delivery [x2(3)=10.6, OR: 7.26, 95%CI: 3.32-15.84, R2 Nagelkerke: 0.011, p<0.001] and birth weight [x2(4)=59.0, OR: 1.001, 95%CI:1.001-1.001, R2 Nagelkerke: 0.033, p<0.001] was the best for predicting PPH in patients classified as Robson 1, 3, 2a, and 4a. Birth weight was poor predictor of PPH (area under ROC curve: 0.612, p<0.001, 95%CI: 0.572-0.653).
Robson Classification 2a and 4a showed the highest rates of postpartum hemorrhage. The model including forceps delivery and birth weight was the best predictor for postpartum hemorrhage in Robson Classification 1, 3, 2a, and 4a.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(3):155-160
DOI 10.1590/S0100-72032005000300010
PURPOSE: to evaluate the outcome of fetuses with risk of chromosomal anomalies over 1:300, based on the nuchal translucency measurement, according to the Fetal Medicine Program. METHODS: in the pregnancies with risk of chromosomal anomalies over 1:300, variables like fetal karyotype, spontaneous or induced abortion, prematurity, stillbirth, neonatal death, malformations, and healthy newborn were considered. We used Fisher's exact test to compare differences in proportions between groups. RESULTS: we selected 193 (3.6%) single pregnancies with risk of chromosomal anomalies over 1:300. Only 165 cases fulfilled the inclusion criteria. Of these only 32.1% underwent fetal karyotyping and of which 8.5% had chromosomal anomalies (85.7% had trisomy 21). Regarding pregnancy outcomes, 4.2% were spontaneous miscarriages, 4.2% induced abortions, 4.8% were premature, 1.8% had neonatal death, 1.8% were stillborn, and 4.2% had structural malformation (85.7% congenital heart diseases). Almost 85.0% were healthy newborns. Patients with abnormal karyotyping had more induced abortions (p<0.001) and more structural malformations (p<0.001) than patients with normal karyotyping. None of the genetic diseases or miscarriages was associated with invasive procedures. Sixty-six percent of the pregnancies with prenatal diagnosis of abnormal karyotype were interrupted. CONCLUSION: nuchal translucency is an important screening tool for chromosomal diseases especially for low-risk pregnancies. However, counseling pregnancies with high risk of chromosomal anomalies should consider that, although these fetuses have a worse prognosis, most of the outcomes are favorable.
Summary
Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(3):155-160
DOI 10.1590/S0100-72032005000300010
PURPOSE: to evaluate the outcome of fetuses with risk of chromosomal anomalies over 1:300, based on the nuchal translucency measurement, according to the Fetal Medicine Program. METHODS: in the pregnancies with risk of chromosomal anomalies over 1:300, variables like fetal karyotype, spontaneous or induced abortion, prematurity, stillbirth, neonatal death, malformations, and healthy newborn were considered. We used Fisher's exact test to compare differences in proportions between groups. RESULTS: we selected 193 (3.6%) single pregnancies with risk of chromosomal anomalies over 1:300. Only 165 cases fulfilled the inclusion criteria. Of these only 32.1% underwent fetal karyotyping and of which 8.5% had chromosomal anomalies (85.7% had trisomy 21). Regarding pregnancy outcomes, 4.2% were spontaneous miscarriages, 4.2% induced abortions, 4.8% were premature, 1.8% had neonatal death, 1.8% were stillborn, and 4.2% had structural malformation (85.7% congenital heart diseases). Almost 85.0% were healthy newborns. Patients with abnormal karyotyping had more induced abortions (p<0.001) and more structural malformations (p<0.001) than patients with normal karyotyping. None of the genetic diseases or miscarriages was associated with invasive procedures. Sixty-six percent of the pregnancies with prenatal diagnosis of abnormal karyotype were interrupted. CONCLUSION: nuchal translucency is an important screening tool for chromosomal diseases especially for low-risk pregnancies. However, counseling pregnancies with high risk of chromosomal anomalies should consider that, although these fetuses have a worse prognosis, most of the outcomes are favorable.