1/18. Legionnaire's disease complicating pregnancy: a case report with intrauterine fetal demise.OBJECTIVE: Legionnaire's disease complicating pregnancy is an unusual event that can seriously compromise both the mother and the fetus. CASE REPORT: We describe one case of such association, with an unfavourable intrauterine fetal outcome, secondary to acute placental insufficiency, related to infection. DISCUSSION: It is important in these high risk pregnancies complicated by acute pneumonia to take into consideration the diagnosis, as early as possible, and the appropriate treatment or the careful monitoring of fetal wellbeing.- - - - - - - - - - ranking = 1keywords = placental insufficiency, insufficiency (Clic here for more details about this article) |
2/18. Ultrasound in the diagnosis of twin-to-twin transfusion syndrome--a preliminary report.OBJECTIVE: The aim of this study was to show the diagnostic possibilities of ultrasound in twin-to-twin transfusion syndrome (TTTS), to demonstrate its usefulness in cases of hemoglobin difference < 5 g/dL in neonates as well as in cases complicated by intrauterine death of one or both twins. STUDY DESIGN: The study included 4 pairs of twins. In two cases 3 fetuses died in utero. In the other two the hemoglobin difference in newborn infants was < 5 g/dL. The ultrasound examination, evaluating the fetal anatomy and biometry, amniotic fluid volume, placentation, was performed. The special attention was paid to polyhydramnios/oligohydramnios, discordant fetal growth (fetal weight, abdominal circumference), the presence of fetal hydrops, ascites, pericardial effusion. Doppler blood flow velocimetry has been done in umbilical vessels, middle cerebral artery. The data was compared with normal reference values for singleton pregnancies. The waveforms from both uterine arteries were also evaluated to exclude placental insufficiency. Additionally the blood flow through the AV valves was measured to exclude or confirm its regurgitation. Postnatally the hemoglobin difference was evaluated if available and compared with sonographic findings. RESULTS: In all cases inter-twin difference in abdominal circumference was greater than 18 mm and inter-twin weight difference of more than 15%. We observed polyhydramnios/oligohydramnios in all twin pregnancies. It has been found decreased PI in middle cerebral artery in larger fetus (recipient) in all our cases (comparing to single pregnancy). PI values for this vessel in smaller fetuses were within normal range (for single pregnancy). PI values in umbilical arteries of recipients were abnormal (increased PI or absent end-diastolic flow). COMMENTS: The sonographic criteria seem to be very useful in diagnosis of twin-to-twin transfusion syndrome, especially in cases where the measurement of hemoglobin level is impossible. Doppler blood flow velocimetry in fetal vessels helps to explain the changes in fetal hemodynamics in TTTS.- - - - - - - - - - ranking = 1keywords = placental insufficiency, insufficiency (Clic here for more details about this article) |
3/18. Fatal fetal outcome with the combined use of valsartan and atenolol.OBJECTIVE: To report a case of anhydramnios, pulmonary hypoplasia, very small placenta, and fetal death in a pregnancy complicated by chronic hypertension and diabetes mellitus that had been treated through the first 24 weeks of gestation with valsartan and atenolol. CASE SUMMARY: A 40-year-old Hispanic woman with well-controlled chronic hypertension and diet-controlled type 2 diabetes mellitus was treated with valsartan and atenolol until pregnancy was diagnosed at 24 weeks' gestation. An ultrasound examination revealed normal fetal growth and anatomy but anhydramnios (amniotic fluid index 0). Valsartan was discontinued, and amniotic fluid volume normalized within two weeks. Intrauterine fetal death was documented at 33 weeks' gestation. Labor was induced, with the delivery of a stillbom female fetus with small, hypoplastic lungs (weight 41% of expected) and an extremely small, 148-g placenta (weight 48% of the 10th percentile for gestational age). DISCUSSION: The use of valsartan, a selective angiotensin ii receptor antagonist (ARA), in human pregnancy has not been reported, but this class of agents would be expected to cause fetal toxicity similar to that observed with angiotensin-converting enzyme inhibitors. This toxicity includes reduced perfusion of the fetal kidneys, resulting in anuria, oligohydramnios, and subsequent pulmonary hypoplasia. The small hypoplastic lungs and very small placenta were probably a consequence of valsartan and atenolol combination therapy. CONCLUSIONS: Resolution of anhydramnios after discontinuing valsartan is evidence for ARA-induced fetal toxicity. The pulmonary hypoplasia observed in the stillbom infant was a direct result of the severe oligohydramnios. The cause of fetal death nine weeks later is uncertain, but because the woman's chronic hypertension and diabetes were well controlled, we believe the primary cause was chronic placental insufficiency resulting from the previous combination of valsartan and atenolol.- - - - - - - - - - ranking = 1keywords = placental insufficiency, insufficiency (Clic here for more details about this article) |
4/18. Maternal uniparental disomy 16 and genetic counseling: new case and survey of published cases.uniparental disomy (UPD) is the occurrence of both homologous chromosomes from one parent. Maternal UPD(16) is the most often reported UPD other than UPD(15); almost all cases are associated with confined placental mosaicism (CPM). Most of maternal UPD(16) cases are characterised by intrauterine growth retardation (IUGR) and different congenital malformations. Maternal UPD(16) has therefore been suspected to have clinical effects: however, the lack of uniqueness and specificity of the birth defects observed suggests that the phenotype may be related in parts to placental insufficiency. We report on a new case of maternal UPD(16) associated with low level trisomy 16 mosaicism in placenta and fetus. IUGR was noticed at 19 gestational weeks and the fetus died intrauterine. Apart from different craniofacial dysmorphisms she showed anal atresia. While IUGR is probably associated with trisomy 16 mosaicism, anal atresia is more characteristic for maternal UPD( 16). Considering the features in our patient as well as those in maternal UPD (16) cases from the literature, indications for UPD (16) testing can be defined: They include trisomy 16 mosaicism, IUGR and congenital anomalies (anal atresia, congenital heart defects). However, there is an overlap of clinical signs in mosaic trisomy 16 cases mosaic for maternal UPD(16) as opposed to those mosaic for biparental disomy 16. The management of trisomy 16 pregnancies should not differ from those in which maternal UPD(16) is confirmed. Therefore, a prenatal testing for UPD(16) is not useful, but it should be offered postnatally. The molecular genetic proof of maternal UPD(16) excludes an increased recurrence risk for the family for further pregnancies.- - - - - - - - - - ranking = 1keywords = placental insufficiency, insufficiency (Clic here for more details about this article) |
5/18. The dehydroepiandrosterone loading test. III. A possible placental function test.The dehydroepiandrosterone loading test (DLT) has been used in a small population of normal and high-risk obstetric patients, to date, in an attempt to develop a dynamic test of placental function. In spite of its limited applications, it has shown reliability in discriminating, with statistical significance, between high-risk pregnancies that result in normally grown, undistressed infants, and high-risk pregnancies that result in infants showing signs of placental insufficiency. The present report expands the study population by presenting our data on 40 loading tests performed in 37 high-risk and normal obstetric patients. Results of 19 of these DLT's have been previously reported and are included herein for statistical analysis. The DLT utilizes an excess substrate load of dehydroepiandrosterone to assess the maximum capability of the placenta to convert it to estrogen. Although our previous report did not show false positive or negative results in the conversion rates, the present results (40 DLT's) found two (2 out of 17) false positives (12%) and two (2 out of 19) false negatives (11%). The highly significant correlation between DLT result and pregnancy outcome seen previously was preserved. In addition, the data of another five DLT's in four patients are presented. This group includes a pregnancy with a fetus with multiple congenital malformations, two patients with intrauterine fetal death, and a nonpregnant woman. The results are not included in the statistical analysis, but discussion of these results has interesting pathophysiologic implications.- - - - - - - - - - ranking = 1keywords = placental insufficiency, insufficiency (Clic here for more details about this article) |
6/18. Is Dandy-Walker malformation associated with "distal 13q deletion syndrome"? Findings in a fetus supporting previous observations.We report on a fetus with a large deletion of the distal part of the long arm of chromosome 13, (del(13)(q14 --> qter)) congenital anomalies of the urinary system, lungs and extremities, and Dandy-Walker malformation (DWM). Although DWM has been associated with many chromosomal abnormalities and genetic syndromes, its relation to the distal 13q has been demonstrated recently. In 2002, McCormack et al., described two patients with deletions of the long arm of chromosome 13 who had multiple congenital abnormalities along with holoprosencephaly (HPE) and DWM. The phenotypic features and autopsy findings of a fetus with "distal 13q deletion syndrome" at 22 weeks gestation are discussed and comparison with the previous two cases is made. The findings support the previous hypothesis suggesting that haploinsufficiency at a locus within 13q22-33 due to microdeletions may be responsible for isolated DWM in some of the patients. Detailed examination of 13q (13q22-33) by means of conventional and molecular cytogenetic methods is necessary in cases with DWM.- - - - - - - - - - ranking = 4.7416074331176E-5keywords = insufficiency (Clic here for more details about this article) |
7/18. Succenturiate placenta: a rare variant in rivers State nigeria (a report of one case).BACKGROUND: The objective of this paper is to highlight the complications associated with succenturiate placenta in pregnant women. methods: A case report of succenturiate placenta. Thorough examination of the placenta grossly and histologically as well as autopsy of the fetus following standard procedure to confirm the gestational age and to ascertain the cause of death was undertaken by the authors. RESULT: The succenturiate lobe was attached to the major placenta by fibrous tissue which was transversed by blood vessels. The visceral surface showed haemorrhagic necrosis and thrombosis and these led to placental insufficiency resulting in fetal death. CONCLUSION: This rare placental abnormality showed that abnormal placental can be responsible for intrauterine fetal death. This can be detected through the use of ultrasonography.- - - - - - - - - - ranking = 1keywords = placental insufficiency, insufficiency (Clic here for more details about this article) |
8/18. Complexities of limb anomalies: the lower extremity in the "prune belly" phenotype.The so-called "prune belly" syndrome (PBS) consists of megalocystis, cryptorchidism, and marked abdominal distension; in addition to these findings, many other abnormalities are commonly present, rarely including severe anomalies of the leg. We report two such individuals, in whom PBS coexisted with abnormal development of the lower extremity. The first, a still-born male fetus, was delivered at 21 weeks gestation; generalized hypoplasia of both legs was present, more marked distally than proximally, and more severe on the left. The second case, a liveborn male infant, was the second of dichorionic twins, delivered at 33 weeks gestation; this infant died at two hours from respiratory insufficiency due to pulmonary hypoplasia. There was severe hypoplasia of the right leg, with gangrenous necrosis of all tissues distal to the knee. Additional findings included a single right umbilical artery, and a small congenital cystic adenomatoid malformation of the right lung. The findings in these cases are compared to other similar cases in the literature, and possible mechanisms for the etiology and pathogenesis of maldevelopment of the leg in PBS are discussed.- - - - - - - - - - ranking = 4.7416074331176E-5keywords = insufficiency (Clic here for more details about this article) |
9/18. Maternal and fetal complications associating lupus anticoagulant and its management; three case reports.Both lupus anticoagulant and anticardiolipin antibody are groups of antiphospholipid antibodies associated with high frequency of thrombosis, fetal loss and thrombocytopenia. The hall marks of their identification is the prolongation of phospholipid-dependant coagulation tests. Much is written in literature about the successful management of lupus anticoagulant during pregnancy, via corticosteroid and acetyl salicylic acid (aspirin) therapy; however, up to now only little has been mentioned about maternal and fetal complications associating lupus anticoagulant and its management. Here we present three cases with significant complications among patients with lupus anticoagulant managed in Sint Augustinus Hospital over the last 3 years. These complications were secondary to antiphospholipid syndrome or to therapy. Maternal complications included gastritis, atrophy of quadriceps muscle, resistant premature contractions and pre-eclampsia. One of our patients developed small lymphocytic lymphoma 1 year after her last labour. Fetal complications included: prematurity, suprarenal insufficiency (temporary) and delayed neuromuscular development found at the 2 year follow-up. As far as we know, some of these complications have never been mentioned in literature.- - - - - - - - - - ranking = 4.7416074331176E-5keywords = insufficiency (Clic here for more details about this article) |
10/18. Severe acquired antithrombin iii deficiency in relation to hepatic and renal insufficiency and intrauterine fetal death in late pregnancy.Acute fatty liver (AFLP) is a rare complication of late pregnancy. The maternal and fetal mortality has earlier been reported to be about 75%, but during the last decade a reduced mortality to about 30 and 50%, respectively, has been reported in the literature. disseminated intravascular coagulation (DIC) has been suggested as a contributing cause to the high mortality. The treatment of DIC has long been under debate, and recently the administration of antithrombin III (AT) concentrate in addition to other supportive treatment has been reported successful. This paper presents the survival of 1 patient with severe liver and renal failure indicating AFLP complicated by severe disturbances in blood coagulation and fibrinolysis. The patient was treated with AT concentrate and small doses of heparin, blood coagulation factors, large amounts of glucose intravenously and supportive intensive care. The pregnancy was terminated by cesarean section. The child was stillborn and 75% of the placental parenchyma was fibrosed.- - - - - - - - - - ranking = 0.0001896642973247keywords = insufficiency (Clic here for more details about this article) |
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