scholarly journals Maternal and perinatal outcomes and placental pathologic examination of 29 SARS‐CoV ‐2 infected patients in the third trimester of gestation

2021 ◽  
Author(s):  
Luis Blasco Santana ◽  
Eduardo Miraval Wong ◽  
Jorge Álvarez‐Troncoso ◽  
Laura Sánchez García ◽  
José L. Bartha ◽  
...  
Keyword(s):  
Perinatal Outcomes ◽  
Pathologic Examination ◽  
Third Trimester ◽  
The Third

High-Grade Fetal Vascular Malperfusion Is Associated With Diffuse Chorionic Hemosiderosis

2021 ◽  
pp. 109352662110646
Author(s):  
Eoghan E. Mooney ◽  
Emma Crotty
Keyword(s):  
Perinatal Outcomes ◽  
Low Grade ◽  
High Grade ◽  
Third Trimester ◽  
The Third ◽  
Term Delivery ◽  
Venous Bleeding ◽  
Placental Membranes ◽  
Adverse Perinatal Outcomes ◽  
Cord Length

Introduction Diffuse chorionic hemosiderosis (DCH) is an abnormality of the placental membranes characterized by the deposition of iron pigment. It is usually secondary to recurrent venous bleeding in early pregnancy. In many papers, it is associated with pre-term delivery. Fetal vascular malperfusion (FVM) is an abnormality of the feto-placental circulation that may be seen at any stage of gestation, but most often in the third trimester. It may be graded as low grade (LGFVM) or high grade (HGFVM). No link has been identified in the placental literature between DCH and FVM, but we have noted the 2 co-existing in placentas submitted for analysis. This study explored a possible association of these 2 entities. Methods Laboratory records were searched for singleton cases coded as DCH based on diagnosis on H&E stain over a 6-year period. Of 4478 placentas reported, 66 cases were coded as DCH (1.5%). These were classified as showing HGFVM, LGFVM, or no FVM. Controls (n = 132) were gestational age-matched cases without DCH. Cord length, coiling, insertion, or other abnormalities were noted. Membranes were classified as normal or circumvallate. Results were analyzed using Graphpad. Results Gestation ranged between 16 and 41 weeks gestation. 14/66 (21%) cases of DCH showed HGFVM and 2/66 (3%) showed LGFVM. 16/132 (12%) controls showed HGFVM and 21/132 (15.9%) had LGFVM. Where FVM is present, high-grade FVM is significantly associated with DCH versus controls ( P < .0031 Fischer’s Test). Discussion HGFVM occurs significantly more often in placentas with DCH than in controls. Both FVM and DCH are associated with adverse perinatal outcomes, and a possible relationship between the 2 remains to be clarified.

scholarly journals Perinatal Outcomes of Monochorionic-Diamniotic Twin Pregnancies Uncomplicated at 28 Weeks of Gestation

2016 ◽  
Vol 7 ◽  
pp. JCM.S38895 ◽  
Author(s):  
Shunji Suzuki
Keyword(s):  
Cohort Study ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Perinatal Outcomes ◽  
Second Trimester ◽  
Perinatal Complications ◽  
Third Trimester ◽  
The Third ◽  
Perinatal Center ◽  
Twin Pregnancies

We examined the prevalence of specific perinatal complications of monochorionic-diamniotic twin pregnancies in cases without any abnormal findings until the second trimester of pregnancy. This was a retrospective cohort study performed at a tertiary perinatal center in Tokyo, Japan. There were 88 cases of uncomplicated monochorionic-diamniotic twin pregnancies at 28 weeks of gestation. In five of them (5.7%), there were serious complications associated with placental circulatory imbalance between the twins during the third trimester of pregnancy. Two cases were complicated by twin–twin transfusion syndrome, two cases were complicated by twin anemia–polycythemia sequence, and one case was complicated by acute twin–twin transfusion syndrome. In the five cases, no abnormal ultrasonographic findings or symptoms were recognized one or two weeks prior to the diagnosis. Fifty-eight cases (65.9%) were delivered at term uneventfully. Serious complications due to placental circulatory imbalance between twins occurred in about 6% of cases during the third trimester of pregnancy.

scholarly journals Prenatal Diagnosis on Ultrasound, Management and Prognosis of Umbilical Artery Thrombosis: A Retrospective Study of 11 Cases

2021 ◽  
Author(s):  
Suqing Wu ◽  
Hui Chen ◽  
Yin Wang ◽  
Tingting Hong ◽  
Siwei Luo ◽  
...  
Keyword(s):  
Blood Flow ◽  
Cesarean Section ◽  
Neonatal Intensive Care ◽  
Umbilical Artery ◽  
Umbilical Vein ◽  
Perinatal Outcomes ◽  
Third Trimester ◽  
The Third ◽  
Artery Thrombosis ◽  
Emergency Cesarean

Abstract Background Umbilical artery thrombosis (UAT) is a rare occurrence during pregnancy and is responsible for most of the fetal demises. It is usually difficult to diagnose and easy to be missed or misdiagnosed. The purpose of this study is to investigate the prenatal ultrasonographic and clinical features of UAT.Methods The UAT cases from January 2015 to June 2021 in Guangdong Provincial People’s Hospital were collected, and their ultrasonographic and clinical data were analyzed retrospectively.Results 11 cases were diagnosed as UAT by intrapartum and postpartum findings. 8 cases (Case 1-8) were diagnosed as UAT by prenatal ultrasound, in which one umbilical vein (UV) and two umbilical arteries (UAs) were detected in the cross and longitudinal sections of the umbilical cord (UC) and thrombi were found in one UA with the obstructed blood flow in the third trimester; however, two UAs with normal blood flow on both sides of fetal bladder were detected during the second trimester. UC punctures were performed before thrombi appeared in 2 cases (Case 7-8). 3 cases (Case 9-11) were misdiagnosed as single umbilical artery (SUA) until delivery. When UAT was diagnosed, the systolic to diastolic ratio (S/D) values of UA were < the 25th percentile and the pulsatility index (PI) values of UA were < the 5th percentile in all cases. Doppler measurements of middle cerebral artery (MCA) were measured in 3 cases. Among them, PI values of MCA of 2 cases were < the 5th percentile, and the cerebroplacental ratios of all 3 cases were > the 25th percentile. 8 pregnancies were terminated by cesarean section. 2 women gave birth spontaneously. 1 woman underwent vaginal forceps delivery. 8 neonates were transferred to neonatal intensive care unit. All the newborns had good prognosis.Conclusions When the ultrasound shows only one UA in the level of fetal bladder for the first time in the third trimester, both sonologists and obstetricians should be highly alert to UAT. Thorough confirm of the previous examination results is necessary to exclude SUA. Intensive fetal monitoring and emergency cesarean section are necessary to avoid adverse perinatal outcomes.

scholarly journals A Comparison of Prediction of Adverse Perinatal Outcomes between Hadlock and INTERGROWTH-21st Standards at the Third Trimester

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Chen Zhu ◽  
Yun-Yun Ren ◽  
Jiang-Nan Wu ◽  
Qiong-Jie Zhou
Keyword(s):  
Sensitivity And Specificity ◽  
Predictive Accuracy ◽  
Characteristic Curve ◽  
Perinatal Outcomes ◽  
Third Trimester ◽  
Clinical Value ◽  
Cutoff Value ◽  
The Third ◽  
Increased Risk ◽  
Adverse Perinatal Outcomes

Little is known about the clinical value of the Hadlock and INTERGROWTH-21st EFW standards for predicting adverse perinatal outcomes (APOs) in the third trimester. The purpose of this study was to study the association between low estimated fetal weight percentile (EFWc) in the third trimester and the risk of APOs and compare predictions of APOs between Hadlock and INTERGROWTH-21st EFW standards. A prospective cohort of 690 singleton pregnancies with ultrasonography performed in the third trimester between March 2015 and March 2016 in China was conducted. EFW and the corresponding EFWc were measured using the Hadlock and INTERGROWTH-21st standards, respectively. Cox proportional hazard models were used to assess the relationship between low EFWc (i.e., <5 percentile, P5) and the risk of APOs. Compared with fetuses with ≥P5 of the EFWc, fetuses with <P5 of the EFWc were much more likely to have an APO, with adjusted hazard ratios of 35.0 (95% confidence interval, 13.9-88.5) and 17.5 (7.7-39.6) for the Hadlock and INTERGROWTH standards, respectively. The Hadlock-EFWc had a higher predictive accuracy for APOs than the INTERGROWTH-EFWc, with area under the receiver operating characteristic curve of 0.94 (0.92-0.95) and 0.90 (0.87-0.92), respectively (P=0.007). The cutoff value for the INTERGROWTH-EFWc was percentile 11.61 with a sensitivity and specificity of 87.9% and 80.5%, respectively. For the Hadlock-EFWc, the corresponding sensitivity and specificity were 93.9% and 81.2%, with a cutoff value of percentile 8.65. Fetuses with low EFWc (i.e., <P5) were associated with an increased risk of APOs. APOs were more accurately predicted when EFWc was measured by the Hadlock standard than by the INTERGROWTH-21st standard.

scholarly journals Effectiveness of routine third trimester ultrasonography to reduce adverse perinatal outcomes in low risk pregnancy (the IRIS study): nationwide, pragmatic, multicentre, stepped wedge cluster randomised trial

BMJ ◽  
2019 ◽  
pp. l5517 ◽  
Author(s):  
Jens Henrichs ◽  
Viki Verfaille ◽  
Petra Jellema ◽  
Laura Viester ◽  
Eva Pajkrt ◽  
...  
Keyword(s):  
Usual Care ◽  
Randomised Trial ◽  
Intervention Strategy ◽  
Perinatal Outcomes ◽  
Low Risk ◽  
Cluster Randomised Trial ◽  
Stepped Wedge ◽  
Third Trimester ◽  
The Third ◽  
Adverse Perinatal Outcomes

AbstractObjectivesTo investigate the effectiveness of routine ultrasonography in the third trimester in reducing adverse perinatal outcomes in low risk pregnancies compared with usual care and the effect of this policy on maternal outcomes and obstetric interventions.DesignPragmatic, multicentre, stepped wedge cluster randomised trial.Setting60 midwifery practices in the Netherlands.Participants13 046 women aged 16 years or older with a low risk singleton pregnancy.Interventions60 midwifery practices offered usual care (serial fundal height measurements with clinically indicated ultrasonography). After 3, 7, and 10 months, a third of the practices were randomised to the intervention strategy. As well as receiving usual care, women in the intervention strategy were offered two routine biometry scans at 28-30 and 34-36 weeks’ gestation. The same multidisciplinary protocol for detecting and managing fetal growth restriction was used in both strategies.Main outcome measuresThe primary outcome measure was a composite of severe adverse perinatal outcomes: perinatal death, Apgar score <4, impaired consciousness, asphyxia, seizures, assisted ventilation, septicaemia, meningitis, bronchopulmonary dysplasia, intraventricular haemorrhage, periventricular leucomalacia, or necrotising enterocolitis. Secondary outcomes were two composite measures of severe maternal morbidity, and spontaneous labour and birth.ResultsBetween 1 February 2015 and 29 February 2016, 60 midwifery practices enrolled 13 520 women in mid-pregnancy (mean 22.8 (SD 2.4) weeks’ gestation). 13 046 women (intervention n=7067, usual care n=5979) with data based on the national Dutch perinatal registry or hospital records were included in the analyses. Small for gestational age at birth was significantly more often detected in the intervention group than in the usual care group (179 of 556 (32%) v 78 of 407 (19%), P<0.001). The incidence of severe adverse perinatal outcomes was 1.7% (n=118) for the intervention strategy and 1.8% (n=106) for usual care. After adjustment for confounders, the difference between the groups was not significant (odds ratio 0.88, 95% confidence interval 0.70 to 1.20). The intervention strategy showed a higher incidence of induction of labour (1.16, 1.04 to 1.30) and a lower incidence of augmentation of labour (0.78, 0.71 to 0.85). Maternal outcomes and other obstetric interventions did not differ between the strategies.ConclusionIn low risk pregnancies, routine ultrasonography in the third trimester along with clinically indicated ultrasonography was associated with higher antenatal detection of small for gestational age fetuses but not with a reduced incidence of severe adverse perinatal outcomes compared with usual care alone. The findings do not support routine ultrasonography in the third trimester for low risk pregnancies.Trial registrationNetherlands Trial Register NTR4367.

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