Hypoxic Patterns of Placental Injury: A Review

2013 ◽  
Vol 137 (5) ◽  
pp. 706-720 ◽  
Author(s):  
Jerzy Stanek

Context.—In utero hypoxia is an important cause of perinatal morbidity and mortality and can be evaluated retrospectively to explain perinatal outcomes, to assess recurrence risk in subsequent pregnancies, and to investigate for medicolegal purposes by identification of many hypoxic placental lesions. Definitions of some placental hypoxic lesions have been applied relatively liberally, and many of them are frequently underreported. Objectives.—To present a comprehensive assessment of the criteria for diagnosing acute and chronic histologic features, patterns, and lesions of placental and fetal hypoxia and to discuss clinicopathologic associations and limitations of the use thereof. The significance of lesions that have been described relatively recently and are not yet widely used, such as laminar necrosis; excessive, extravillous trophoblasts; decidual multinucleate extravillous trophoblasts; and, most important, the patterns of diffuse chronic hypoxic preuterine, uterine, and postuterine placental injury and placental maturation defect, will be discussed. Data Sources.—Literature review. Conclusions.—The placenta does not respond in a single way to hypoxia, and various placental hypoxic features should be explained within a clinical context. Because the placenta has a large reserve capacity, hypoxic lesions may not result in poor fetal condition or outcome. On the other hand, very acute, in utero, hypoxic events, followed by prompt delivery, may not be associated with placental pathology, and many poor perinatal outcomes can be explained by an etiology other than hypoxia. Nevertheless, assessment of placental hypoxic lesions is helpful for retrospective explanations of complications in pregnancy and in medicolegal investigation.

2021 ◽  
pp. 1-8
Author(s):  
Man Yan Chung ◽  
Wing Cheong Leung ◽  
Wing Ting Tse ◽  
Yuen Ha Ting ◽  
Kwok Ming Law ◽  
...  

<b><i>Introduction:</i></b> Fetal pleural effusion may require in utero shunting which is associated with procedure-related complications. <b><i>Objective:</i></b> To evaluate the efficacy and complications of the newly designed Somatex shunt in treating fetal pleural effusion. <b><i>Methods:</i></b> Consecutive cases with primary fetal pleural effusion who were treated with the Somatex shunt between 2018 and 2019 were evaluated. Perinatal outcomes and complications were retrospectively analyzed. <b><i>Results:</i></b> There were 6 cases of unilateral and 1 case of bilateral pleural effusion, and hence a total of 8 pleuroamniotic shunting procedures were performed. The median gestational age at diagnosis and shunting was 20.7 and 22.6 weeks, respectively. All 8 procedures were successful, achieving complete in utero drainage. All but one were live births (85.7%) with a median gestational age of 38 weeks. The single case of in utero death occurred 4.7 weeks after successful shunting, and no cause could be identified after autopsy. The rates of preterm birth and premature rupture of membranes were 33.3% (2/6) and 16.7% (1/6), respectively. Four of the 8 procedures (50%) had minor shunt-related complications such as dislodgement and entrapment, occurring at a median of 7.7 weeks after shunting. None of the shunts became blocked. <b><i>Conclusions:</i></b> The Somatex shunt is effective in relieving fetal pleural effusions with good survival rate. Overall, it was a safe instrument, though minor shunt complications occurred.


2021 ◽  
pp. 1-9
Author(s):  
Nieves L. González González ◽  
Enrique González Dávila ◽  
Agustina González Martín ◽  
Erika Padrón ◽  
José Ángel García Hernández

<b><i>Objective:</i></b> The aim of the study was to determine if customized fetal growth charts developed excluding obese and underweight mothers (CC<sub>(18.5–25)</sub>) are better than customized curves (CC) at identifying pregnancies at risk of perinatal morbidity. <b><i>Material and Methods:</i></b> Data from 20,331 infants were used to construct CC and from 11,604 for CC<sub>(18.5–25)</sub>, after excluding the cases with abnormal maternal BMI. The 2 models were applied to 27,507 newborns and the perinatal outcomes were compared between large for gestational age (LGA) or small for gestational age (SGA) according to each model. Logistic regression was used to calculate the OR of outcomes by the group, with gestational age (GA) as covariable. The confidence intervals of pH were calculated by analysis of covariance. <b><i>Results:</i></b> The rate of cesarean and cephalopelvic disproportion (CPD) were higher in LGA<sub>only by CC</sub><sub><sub>(18.5−25)</sub></sub> than in LGA<sub>only by CC</sub>. In SGA<sub>only by CC</sub><sub><sub>(18.5−25)</sub></sub>, neonatal intensive care unit (NICU) and perinatal mortality rates were higher than in SGA<sub>only by CC</sub>. Adverse outcomes rate was higher in LGA<sub>only by CC</sub><sub><sub>(18.5−25)</sub></sub> than in LGA<sub>only by CC</sub> (21.6%; OR = 1.61, [1.34–193]) vs. (13.5%; OR = 0.84, [0.66–1.07]), and in SGA <sub>only by CC</sub><sub><sub>(18.5−25)</sub></sub> than in SGA<sub>only by CC</sub> (9.6%; OR = 1.62, [1.25–2.10] vs. 6.3%; OR = 1.18, [0.85–1.66]). <b><i>Conclusion:</i></b> The use of CC<sub>(18.5–25)</sub> allows a more accurate identification of LGA and SGA infants at risk of perinatal morbidity than conventional CC. This benefit increase and decrease, respectively, with GA.


2014 ◽  
Vol 5 (3) ◽  
pp. 214-218 ◽  
Author(s):  
J. L. Kaar ◽  
J. T. Brinton ◽  
T. Crume ◽  
R. F. Hamman ◽  
D. H. Glueck ◽  
...  

Objective: To examine the association of cord blood leptin with body mass index (BMI) growth velocity from birth to 12 months of age among infants exposed and not exposed to over-nutrition in utero (defined as maternal overweight/obesity or presence of gestational diabetes). Methods: 185 infants enrolled in the Exploring Perinatal Outcomes among Children study (76 exposed and 109 not exposed) had leptin and insulin measured in cord blood. Longitudinal weight and length measures in the first 12 months of life (average 4 per participant) obtained from medical records were used to compute BMI growth rates. Mixed models were used to examine associations of cord blood leptin with growth. Results: Compared with unexposed infants, those exposed had significantly higher cord blood insulin (8.64 v. 6.97 uU/ml, P<0.01) and leptin levels (8.89 v. 5.92 ng/ml, P=0.05) as well as increased birth weights (3438.04 v. 3306.89 g, P=0.04). There was an inverse relationship between cord leptin levels and BMI growth from birth to 12 months of age (P=0.005); however, exposure to over-nutrition in utero did not significantly modify this association (P=0.59). Conclusion: We provide support of a possible operational feedback mechanism by which lower cord blood leptin levels are associated with faster infant growth in the first year of life. Our data do not tend to support the hypothesis that this mechanism is altered in infants exposed to over-nutrition in utero; however our sample is too small to provide sufficient evidence. Larger epidemiological studies are needed to elucidate the mechanisms responsible for increased propensity for obesity in exposed offspring.


Author(s):  
Vedavathi . ◽  
Rajeev Sood

Background: Preeclampsia is pregnancy specific disease, lead to maternal, perinatal morbidity and mortality. This study is conducted to identify the socio demographic profile of subjects suffering from preeclampsia and its effect on maternal and fetal health.Methods: This prospective study was conducted at department of obstetrics and gynecology, Kamla Nehru State Hospital, Shimla, in this, 100 preeclamptic women were included. Preeclampsia was diagnosed with blood pressure of ≥140/90 mmHg noted for the first-time during pregnancy, after 20 wks of gestation and proteinuria. Demographic details were collected. Investigations i.e. hemogram, liver and renal function tests, coagulation profile and fundoscopy were done. Maternal and perinatal outcomes were recorded.Results: In this study, majority of the subjects were primigravida 65. In this, 11 subjects had systolic blood pressure of 140-159 mmHg and 89 subjects had systolic blood pressure of > 160 mmHg. 25 subjects had diastolic blood pressure of 90-109 mmHg and 75 subjects had diastolic blood pressure of > 110 mmHg. In this, 82 subjects had warning symptoms, mainly headache 49. 14 subjects showed hypertensive changes in fundus. Unfavorable Bishop Score, observed in 86 subjects and 78 subjects were induced after controlling blood pressure. Majority of subjects had vaginal delivery 73. Majority of the subjects had deranged liver function 61. Maternal morbidity was reported in 54 subjects. Intrauterine death reported in 14 subjects. Birth weight was < 2.5 kg was observed in 70 babies. Out of 74 live births, 53 neonates required admission in NICU and 16 neonates died in NICU.Conclusions: It may be concluded that, maternal and neonatal morbidity and mortality can be reduced by early identification of risk factors and timely intervention is the hall mark in preventing the maternal and perinatal morbidity and mortality.


Author(s):  
Zenab Tambawaala ◽  
Deepali Kale

Background: Abruptio placentae is an obstetric emergency where placenta completely or partially separates before delivery of the baby. It occurs approximately in one in 120 deliveries. It is an important cause of perinatal morbidity and mortality.Methods: This was a prospective hospital-based study design conducted over a period of 2 years, in the Department of Obstetrics and Gynecology at a tertiary care hospital in Mumbai comprising of 60 cases.Results: The incidence of abruption placentae in Present study is 0.51%. Authors had perinatal mortality in 6.6% of the cases. Out of 60 cases, 2 deaths occurred in utero. Out of the remaining 58 cases, 24 babies needed NICU care, out of them, 22 went home alive and 2 had neonatal deaths. Perinatal morbidity in the form of hyperbilirubinemia, CNS depression, septicemia, neonatal anemia and neonatal DIC were noted.Conclusions: High incidence of perinatal mortality in abruptio placentae is because of increased number of still births. In our studies, the perinatal mortality is 6.6% as compared to all other studies. This decline in perinatal mortality is due to improved obstetric care and excellent NICU facilities which are required for a majority of the cases.


2007 ◽  
Vol 10 (4) ◽  
pp. 293-299 ◽  
Author(s):  
Monique W.M. de Laat ◽  
Jacqueline J.C. van der Meij ◽  
Gerard H.A. Visser ◽  
Arie Franx ◽  
Peter G.J. Nikkels

Our objective was to determine whether there is an association between hypercoiling of the umbilical cord and placental maturation defect. From a database comprising 1147 cases, containing data on all placentas examined at our institution during the study period we selected all cases with a gestational age of at least 37 weeks that exhibited hypercoiling of the umbilical cord (coiling density above the 90th percentile, n = 42); we also examined 2 matched controls for each case, one with hypocoiling and one with normocoiling. The mean number of syncytiocapillary membranes (SCM) per terminal villus was calculated. Presence of a placental maturation defect was defined as the mean number of SCM below the 10th percentile. Correlations were assessed using Spearman's rho. Relations between dichotomous variables were tested using logistic regression. Mean number of SCM per terminal villus (±standard deviation) was 1.25 ± 0.65. Difference in mean between hypo- and hypercoiled cords was 0.37 (95% confidence interval [CI], 0.07 to 0.67). The correlation coefficient between mean number of SCM and umbilical coiling index (UCI, coils/cm) was −0.28 ( P = 0.002). The odds ratio (OR) for placental maturation defect in presence of hypercoiling was 2.61 (95% CI, 0.75 to 9.12). The OR for fetal death was 132 (95% CI, 13.2 to 1315) in the presence of a placental maturation defect and 5.49 (95% CI, 1.02 to 29.6) in the presence of hypercoiling. The OR for indication of fetal hypoxia/ischemia was 12.3 (95% CI, 3.0 to 50.3) in the presence of a placental maturation defect and 3.2 (95% CI, 0.95 to 10.9) in the presence of hypercoiling. We found a trend toward placental maturation defect in the presence of hypercoiling and an inverse relationship between the mean number of SCM in the terminal villi and the UCI. We confirmed associations between fetal death and both a maturation defect and hypercoiling and found an association between histological indication of fetal hypoxia/ischemia and a placental maturation defect.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Valerie E. Whiteman ◽  
Jason L. Salemi ◽  
Mulubrhan F. Mogos ◽  
Mary Ashley Cain ◽  
Muktar H. Aliyu ◽  
...  

Objective. To identify factors associated with opioid use during pregnancy and to compare perinatal morbidity, mortality, and healthcare costs between opioid users and nonusers.Methods. We conducted a cross-sectional analysis of pregnancy-related discharges from 1998 to 2009 using the largest publicly available all-payer inpatient database in the United States. We scanned ICD-9-CM codes for opioid use and perinatal outcomes. Costs of care were estimated from hospital charges. Survey logistic regression was used to assess the association between maternal opioid use and each outcome; generalized linear modeling was used to compare hospitalization costs by opioid use status.Results. Women who used opioids during pregnancy experienced higher rates of depression, anxiety, and chronic medical conditions. After adjusting for confounders, opioid use was associated with increased odds of threatened preterm labor, early onset delivery, poor fetal growth, and stillbirth. Users were four times as likely to have a prolonged hospital stay and were almost four times more likely to die before discharge. The mean per-hospitalization cost of a woman who used opioids during pregnancy was $5,616 (95% CI: $5,166–$6,067), compared to $4,084 (95% CI: $4,002–$4,166) for nonusers.Conclusion. Opioid use during pregnancy is associated with adverse perinatal outcomes and increased healthcare costs.


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