Tamme W Goecke

University Hospital RWTH Aachen, Aachen, North Rhine-Westphalia, Germany

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Publications (73)135.91 Total impact

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    ABSTRACT: Purpose: Hypohidrotic ectodermal dysplasia, a potentially life-threatening heritable disorder, may be recognized already in utero by characteristic features such as oligodontia and mandibular hypoplasia. As therapeutic options and prognosis depend on the time point of diagnosis, early recognition was attempted during routine prenatal ultrasound examinations. Subjects and Methods: Fetuses of nine pregnant women (one triplet and eight singleton pregnancies) with family histories of hypohidrotic ectodermal dysplasia were investigated by sonography between the 20th and 24th week of gestation. Results: In 4 male and 2 female fetuses reduced amounts of tooth germs were detected, whereas 5 fetal subjects showed the normal amount. Three-dimensional ultrasound evaluation revealed mandibular hypoplasia in 5 of the 6 fetuses with oligodontia. Molecular genetic analysis and/or clinical findings after birth confirmed the prenatal sonographic diagnosis in each subject. Conclusion: In subjects with a family history of hypohidrotic ectodermal dysplasia, the diagnosis of this rare condition can be established noninvasively by sonography in the second trimester of pregnancy. Early recognition of the disorder may help to prevent dangerous hyperthermic episodes in infancy and may allow timely therapeutic interventions.
    Ultraschall in der Medizin (Stuttgart, Germany : 1980). 08/2014;
  • Alexander Hein, Peter A Fasching, Tamme W Goecke
    Archives of Gynecology and Obstetrics 07/2014; · 1.33 Impact Factor
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    ABSTRACT: Purpose. The aim of this study was to investigate whether single nucleotide polymorphisms (SNPs) in genes of the stress hormone signaling pathway, specifically FKBP5, NR3C1, and CRHR1, are associated with depressive symptoms during and after pregnancy. Methods. The Franconian Maternal Health Evaluation Study (FRAMES) recruited healthy pregnant women prospectively for the assessment of maternal and fetal health including the assessment of depressiveness. The German version of the 10-item Edinburgh Postnatal Depression Scale (EPDS) was completed at three time points in this prospective cohort study. Visit 1 was at study entry in the third trimester of the pregnancy, visit 2 was shortly after birth, and visit 3 was 6-8 months after birth. Germline DNA was collected from 361 pregnant women. Nine SNPs in the above mentioned genes were genotyped. After construction of haplotypes for each gene, a multifactorial linear mixed model was performed to analyse the depression values over time. Results. EPDS values were within expected ranges and comparable to previously published studies. Neither did the depression scores differ for comparisons among haplotypes at fixed time points nor did the change over time differ among haplotypes for the examined genes. No haplotype showed significant associations with depressive symptoms severity during pregnancy or the postpartum period. Conclusion. The analysed candidate haplotypes in FKBP5, NR3C1, and CRHR1 did not show an association with depression scores as assessed by EPDS in this cohort of healthy unselected pregnant women.
    BioMed research international. 01/2014; 2014:469278.
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    ABSTRACT: Aim. Identification of women with moderate alcohol abuse during pregnancy is difficult. We correlated self-reported alcohol consumption during pregnancy and patient characteristics with objective alcohol indicators measured in fetal meconium. Methods. A total of 557 women singleton births and available psychological tests, obstetric data and meconium samples were included in statistical analysis. Alcohol metabolites (fatty acid ethyl esters (FAEEs) and ethyl glucuronide (EtG)), were determined from meconium and correlated with patient characteristics. Results. We found that 21.2% of the 557 participants admitted low-to-moderate alcohol consumption during pregnancy. Of the parameters analyzed from meconium, only EtG showed an association with alcohol history (P < 0.01). This association was inverse in cases with EtG value above 120 ng/g. These values indicate women with most severe alcohol consumption, who obviously denied having consumed alcohol during pregnancy. No other associations between socioeconomic or psychological characteristics and the drinking status (via meconium alcohol metabolites) could be found. Conclusion. Women who drink higher doses of ethanol during pregnancy, according to metabolite measures in meconium, might be less likely to admit alcohol consumption. No profile of socioeconomic or psychological characteristics of those women positively tested via meconium could be established.
    BioMed research international. 01/2014; 2014:702848.
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    ABSTRACT: In most cases, the amount of hematopoietic stem and progenitor cells (HSPCs) in a single cord blood (CB) unit is not sufficient for allogenic transplantation of adults. Therefore, two CB units are usually required. The ex vivo expansion of HSPCs from CB in coculture with mesenchymal stroma cells (MSCs) might be an alternative. It was investigated, whether bone marrow-derived MSCs, which have to be obtained in an invasive procedure, introduce a further donor and increases the risk of transmissible infectious diseases for the patient can be replaced by MSCs from amnion, chorion, Wharton's jelly, amniotic fluid, and CB, which can be isolated from placental tissue which is readily available when CB is sampled. In a two-step ex vivo coculture mononuclear cells from cryopreserved CB were cultured with different MSC-feederlayers in a medium supplemented with cytokines (stem cell factor, thrombopoietin [TPO], and granulocyte colony-stimulating factor). Expansion rates were analyzed as well, by long-term culture-initiating cell (LTC-IC) and colony-forming unit (CFU) assays, as by measuring CD34(+)- and CD45(+)-cells. Due to the comparably low number of 5×10(2) to 1×10(4) CD34(+)-cells per cm(2) MSC-monolayer, we observed comparably high expansion rates from 80 to 391,000 for CFU, 70 to 313,000 for CD34(+)-, and 200 to 352,000 for CD45(+)-cells. Expansion of LTC-IC was partly observed. Compared to the literature, we found a better expansion rate of CD34(+)-cells with MSCs from all different sources. This is probably due to the comparably low number of 5×10(2) to 1×10 CD34(+)-cells per cm(2) MSC-monolayer we used. Comparably, high expansion rates were observed from 80 to 391,000 for CFUs, 70 to 313,000 for CD34(+)-, and 200 to 352,000 for CD45(+)-cells. However, the expansion of CD34(+)-cells was significantly more effective with MSCs from bone marrow compared to MSCs from amnion, chorion, and Wharton's jelly. The comparison of MSCs from bone marrow with MSCs from CB and amniotic fluid showed no significant difference. We conclude that MSCs from placental tissues might be useful in the expansion of HSPCs, at least if low numbers of CD34(+)-cells per cm(2) MSC-monolayer and a high TPO concentration are implemented in the expansion culture.
    Tissue Engineering Part A 12/2013; 19(23-24):2577-85. · 4.64 Impact Factor
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    ABSTRACT: Depression during and after pregnancy can have a negative impact on women's quality of life and on the development of the newborn child. Interventions have been shown to have a positive influence on both mothers and children. Predictive factors for depressive symptoms might possibly be able to identify groups that are at high risk. The aim of this study was to investigate the value of socioeconomic factors in predicting depressive symptoms during and after pregnancy. Depressiveness was measured using the German version of the 10-item Edinburgh Postnatal Depression Scale (EPDS) at three time-points, in a prospective cohort study (n = 1,100). Visit 1 (Q1) was at study entry in the third trimester of the pregnancy, visit 2 (Q2) was shortly after birth, and visit 3 (Q3) was 6-8 months after birth. Depression scores were associated with socioeconomic factors and time in linear mixed models. Parity status, education status, monthly income, residential property status, and partnership status, as well as interactions between them, were found to be predictive factors for EPDS scores. The strongest factor influencing depressive symptoms was partnership status. Women who did not have an intact partnership had EPDS scores that were on average four points higher than in women with a partner at all three study visits (P < 0.000001). Socioeconomic factors define subgroups that have different depression scores during and after pregnancy. Partnership status appears to be one of the most important influencing factors and could be useful for identifying women who should be offered an intervention to prevent possible negative effects on the mother or child.
    Archives of Gynecology 10/2013; · 0.91 Impact Factor
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    ABSTRACT: OBJECTIVE: The adaptor protein p66Shc generates mitochondrial reactive oxygen species and translates oxidative signals into apoptosis. We aimed to analyze potential alterations in total methylation and in p66Shc activation in placental tissues from women delivering intrauterine growth restricted neonates (IUGR) versus appropriate for gestational age (AGA) and small for gestational age (SGA) neonates. METHOD: DNA methylation of the p66Shc promoter and of long interspersed nuclear elements (LINE-1), as a marker for total methylation, was quantified by automatic pyrosequencing in 15 IUGR, 25 AGA and 15 SGA placentas. Placental gene expression of p66Shc was determined by TaqMan real-time polymerase chain reaction. RESULTS: No significant difference was found for LINE-1 methylation between IUGR, AGA and SGA newborns. DNA methylation of the p66Shc promoter was significantly decreased in the IUGR compared with the AGA group (p < 0.0001) and the SGA group (p < 0.0001). However, analysis of placental p66Shc gene expression did not show a significant difference between the three groups. CONCLUSION: It remains speculative if the decreased p66Shc promoter methylation might play a role in the pathophysiology of endothelial dysfunction and cardiovascular disease after IUGR. © 2013 John Wiley & Sons, Ltd.
    Prenatal Diagnosis 03/2013; · 2.68 Impact Factor
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    ABSTRACT: Terminal differentiation of villous cytotrophoblasts (CT) ends in formation of the multinucleated syncytiotrophoblast representing the fetal-maternal interface. Aberrations during this cell-fusion process are associated with Intrauterine Growth Restriction (IUGR), Preeclampsia (PE) and High Elevated Liver and Low Platelets (HELLP) Syndrome. Syncytin-1, the envelope gene of the human Endogenous Retrovirus ERVW-1, is one of the most important genes involved in cell-fusion and showed decreased gene expression during these pathological pregnancies. The aim of this study was to determine the methylation pattern of the entire promoter of ERVW-1 and to correlate these findings with the expression profile of Syncytin-1 in the placental syndromes. 14 isolated villous cytotrophoblasts from control (n = 3), IUGR (n = 3), PE (n = 3), PE/IUGR (n = 3) and HELLP/IUGR (n = 2) placentae were used to determine the mean methylation level (ML) for the ERVW-1 promoter region. ML rose significantly from 29% in control CTs to 49% in IUGR, 53% in PE, 47% in PE/IUGR and 64% in HELLP/IUGR indicating an epigenetic down-regulation of Syncytin-1 by promoter hypermethylation. DNA demethylation of the trophoblast like cell lines BeWo, JEG-3 and JAR with 5-AZA-2'desoxycytidine (AZA) showed an increased Syncytin-1 expression and fusion ability in all cell lines. Promoter activity of the 5'LTR could be inhibited by hypermethylation 42-fold using a luciferase based reporter-gene assay. Finally overexpression of the methyltransferases DNMT3a and LSH could be responsible for a decreased Syncytin-1 expression by promoter hypermethylation of ERVW-1. Our study linked decreased Syncytin-1 expression to an epigenetic hypermethylation of the entire promoter of ERVW-1. Based on our findings we are predicting a broad aberrant epigenetic DNA-methylation pattern in pathological placentae affecting placentogenesis, but also the development of the fetus and the mother during pregnancy.
    PLoS ONE 01/2013; 8(2):e56145. · 3.73 Impact Factor
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    ABSTRACT: PURPOSE: To assess the accuracy of weight estimation (WE) in fetuses with breech presentation and to compare it directly with a control group of fetuses in vertex presentation. MATERIALS AND METHODS: In a retrospective cohort study, the accuracy of WE in fetuses with breech presentation (n = 244) was evaluated using eight sonographic models and was compared with a control group of fetuses in vertex presentation (n = 244). Each fetus underwent ultrasound examination with complete biometric parameters within 7 days before delivery. The accuracy of the different formulas was compared using means of percentage error (MPE), a measure that reflects systematic error; standard deviation values of MPEs, a measure for random error; medians of absolute percentage error (MAPE), which take both the systematic and random error into account and the percentage of fetal WEs falling within a 10 % range of the actual birth weight. RESULTS: Significantly lower (more negative) MPE values were found in the breech group with the Hadlock (AC, FL) formula, whereas no significant differences were seen with any of the other equations. When compared to zero, in the breech group, a significant systematic error was found with five formulas, while in the control group a significant systematic error was found with three equations. With regard to random error and MAPE, no significant differences were found between the two groups, irrespective of the formula applied. Generally, in both groups, formulas based on three or four biometric indices were more accurate in detecting fetal weight than formulas with only one or two parameters. CONCLUSIONS: Weight estimation in fetuses with breech presentation was as accurate as weight estimation in fetuses with vertex presentation. Using the currently available, well-established formulas should therefore also be appropriate for WE in fetuses with such malpresentations.
    Archives of Gynecology 12/2012; · 0.91 Impact Factor
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    ABSTRACT: Pregnancy and breastfeeding are major factors reducing breast cancer (BC) risk. A potential mechanism for this effect might be changes in mammographic density, but other factors might be involved. The aim of this study was to investigate factors influencing changes in breast size and breast stiffness after pregnancy. Of a consecutive cohort of 5991 women who gave birth between 1996 and 1999, 559 replied to a questionnaire including questions about breast changes. The women completed their own assessments of changes in breast size and stiffness since their last pregnancy. Factors being investigated regarding their predictive value for these changes were: BMI before pregnancy, weight gain, age at first full-term pregnancy (FFTP), number of pregnancies, breastfeeding, and BMI of the children's fathers. A decrease in breast size was reported in 21.8% of the participants and an increase in 35.1%. With regard to the breast stiffness, 66.4% reported a decrease and only 5% reported an increase. Independent predictors for increased breast size were age at FFTP, increase in BMI since last pregnancy, BMI before pregnancy, and time since FFTP. Factors predictive of greater breast stiffness included age at FFTP, BMI before FFTP, time since FFTP, breastfeeding status, and number of pregnancies. Breast changes after pregnancy depend on several variables, which are described as BC-risk factors. Individual reaction of the female breast to a pregnancy leads to different outcomes with regard to breast size and stiffness. Further studies are needed to clarify whether these individual responses interact with the effect of pregnancy on the BC risk.
    European journal of cancer prevention: the official journal of the European Cancer Prevention Organisation (ECP) 09/2012; · 2.21 Impact Factor
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    ABSTRACT: PURPOSE: To compare depressiveness scores, both during and after pregnancy, with the delivery mode (DM). METHODS: In a longitudinal, prospective study, standardized questionnaires for the Edinburgh Postnatal Depression Scale were presented to 1,100 women and used to assess the presence and severity of depressiveness at three time points: prenatal, from the 30th gestational week (Q1); 48-72 h postnatal (Q2); and 6-8 months postnatal (Q3). The patients were divided into four groups relative to DM: spontaneous delivery, primary cesarean section (CS), secondary CS, and assisted vaginal delivery. The final number of participating women with both delivery mode and depression information for all three time points was 753. RESULTS: There was a significant difference of the mean EPDS values between the spontaneous delivery and primary CS groups (P = 0.04) at Q1 (5.1 vs. 6.3). None of the other comparisons was significant. Significant differences relative to DM were seen at Q2 (P < 0.0001), but there were no significant differences between the patient groups at Q3 (P = 0.54). CONCLUSIONS: DM only showed coherence with the extent of depression briefly during the peripartal period. A relationship was found between depressiveness during pregnancy and DM, with higher depressiveness scores in the group of patients undergoing primary CS. This should be taken into account when patients requesting an elective cesarean section are being counseled.
    Archives of Gynecology 07/2012; · 0.91 Impact Factor
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    ABSTRACT: Cytotrophoblast (CT) cell fusion into a syncytiotrophoblast is obligatory for placentation and mediated by the human endogenous retrovirus (HERV)-W envelope gene Syncytin-1. Abnormal placentation is associated with preeclampsia (PE), HELLP and intrauterine growth restriction (IUGR). In placentogenesis, the MAP-kinase p38α regulates PPARγ/RXRα signaling and target genes, like leptin, resistin, ABCG2, and hCG. The aim of this study was to analyze PPARγ/RXRα signaling and target gene regulation using primary CT cultures, the trophoblastic cell line BeWo and placental tissues from patients with normal and abnormal placentation. CT from four different human control placentae and BeWo cells demonstrated that Syncytin-1, other signaling members and CT cell fusions were regulated with PPARγ/RXRα activators troglitazone and 9-cis retinoic acid, via protein kinase A and p38α inhibition. Significant discordant regulations between CTs and BeWo were found. Two PPARγ/RXRα-response-elements from upstream regulatory elements and the 5'LTR of HERV-W were confirmed with DNA-protein binding assays using nuclear extracts and recombinant PPARγ/RXRα proteins. These promoter elements were validated with luciferase assays in the presence of PPARγ/RXRα modulators. Furthermore, troglitazone or 9-cis retinoic acid treatment of siRNA-PPARγ and siRNA-RXRα transfected BeWo cells proved the requirement of these proteins for Syncytin-1 regulation. Thirty primary abnormal placentae from PE, HELLP and IUGR patients compared to 10 controls showed significant deregulation of leptin RNA and protein, p38α, phospho-p38α, PPARγ, ABCG2, INSL4 and Syncytin-1. Our study characterized PPARγ/RXRα signaling in human CT and cell fusions identifying Syncytin-1 as a new target gene. Based on these results, a disturbed PPARγ/RXRα pathway could contribute to pathological human pregnancies.
    Journal of Cellular Biochemistry 07/2012; 113(7):2383-96. · 3.06 Impact Factor
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    ABSTRACT: Purpose: To develop and to evaluate a specific sonographic weight formula for fetuses with extreme macrosomia (≥ 4500 g). Materials and Methods: A statistical estimation technique known as "gradient boosting with component-wise P-splines" was applied to a group of 174 fetuses with a birth weight (BW) ≥ 4500 g. Each fetus underwent an ultrasound examination with complete biometric parameters within 7 days of delivery. The exclusion criteria were multiple pregnancy, intrauterine death, and major structural or chromosomal anomalies. A new formula was derived using the obtained data and was then compared to currently available equations for estimating weight in the macrosomic fetus. Results: The new formula is: log10 (EFW) = 3.6687781710 - 0.0003 230 278 × (BPD - 100.4080) - 0.0000843433 × (BPD - 100.4080)^2 + 0.0007281 281 × (OFD - 120.6322) + 0.0000664323 × (OFD - 120.6322)^2 + 0.000000001794019 × exp(ATD - 120.1552) + 0.0005946974 × (APAD - 121.2069) - 0.0000210137 × (APAD - 121.2069)^2 - 0.000003318 × (APAD - 121.2069)^3, where EFW is the estimated fetal weight, BPD is the biparietal diameter, OFD is the occipitofrontal diameter, ATD is the abdominal transverse diameter, and APAD is the abdominal anteroposterior diameter. The new formula proved to be superior to other established equations, showing the lowest mean absolute percentage error (MAE 2.506), the smallest variance regarding the signed percentage error (SPE) (SD 3.376), and the best distribution of absolute percentage errors within prespecified error bounds. Conclusion: This new formula significantly improves weight estimation in fetuses with extreme macrosomia.
    Ultraschall in der Medizin 06/2012; 33(5):480-488. · 4.12 Impact Factor
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    ABSTRACT: A number of studies indicate that altered serotonergic transmission may be a risk factor for depression in the peripartum period. The aim of this study was to investigate whether genetic polymorphisms in the TPH2 gene, the gene product of which is the rate-limiting enzyme in the biosynthesis of serotonin in the central nervous system, are associated with depressive symptoms in pregnancy and the postpartum period. In a cohort of 361 Caucasians, the severity of depression was assessed prospectively during pregnancy (third trimester) and the postpartum period (2-3 days and 6-8 months) using the Edinburgh Postnatal Depression Scale (EPDS). Tagging single nucleotide polymorphisms (SNPs) in TPH2 and SNPs that are known to be of functional relevance were genotyped. For each haplotype block or SNP, a multifactorial linear mixed model was performed to analyse the EPDS values over time. The haplotype block in the promoter region of TPH2 showed significant associations with depression values during pregnancy and 6-8 months afterwards. Additionally, a haplotype block in intron 8 had an influence on depression values during pregnancy, but not after birth. There was a significant interaction between time and haplotypes and the severity of depression. The effect of TPH2 haplotypes on EPDS values was strongest during pregnancy and 6 months after birth, with a low depression rating in the first few days after delivery for all women. In this cohort, TPH2 haplotypes known to be of functional relevance were found to be associated with different EPDS values during and after pregnancy. These haplotypes were associated with depressive symptoms both before and after delivery and were thus not specific for postpartum-onset depression. This underlines the relevance of these functional polymorphisms for depression in general and the importance of longitudinal assessments in research on postpartum depression.
    Journal of Psychiatric Research 06/2012; 46(9):1109-17. · 4.09 Impact Factor
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    ABSTRACT: Renal dysplasia and obstructive uropathy are more common in males and are associated with an increased tubular loss of electrolytes. We aimed to compare the midtrimester concentration of tubular parameters in the prenatal period between healthy male and female fetuses. Amniotic fluid was collected at 16 weeks of gestation at the time of genetic amniocentesis. The concentration of sodium, chloride, potassium, calcium, phosphate, magnesium, α1-microglobulin, creatinine and urea was determined in the amniotic fluid of 92 male and 108 female fetuses. The concentration of sodium, chloride and calcium was not significantly higher in male than in female fetuses. In contrast, the concentration of potassium (p=0.01), phosphate (p=0.04), magnesium (p=0.04) and α1-microglobulin (p=0.04) was significantly increased in the amniotic fluid of male fetuses. The concentration of electrolytes correlated to the concentration of creatinine, urea and α1-microglobulin. The concentration of specific tubular parameters in the amniotic fluid was higher in male compared with female fetuses. Whether this might point to sex-specific differences in tubular function in second trimester fetuses or reflect glomerular filtration or other interfering factors remains speculative.
    Prenatal Diagnosis 04/2012; 32(5):476-9. · 2.68 Impact Factor
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    ABSTRACT: Amniotic membrane (AM) is often used for the treatment of ocular surface ulcerations and other corneal defects. Trefoil factor family (TFF) peptide 3 is produced by conjunctival goblet cells, participates in tear film physiology and has also been shown to be involved in ocular surface restitution after corneal injury. In the present study, we questioned whether AM also might be a source of TFF3 and if yes whether the secretion rate of TFF3 is changed by proinflammatory cytokines or by cryoconservation of AM. By means of RT-PCR, the mRNA expression of all three known TFF peptides could be detected in AM. Immunohistochemistry on paraffin-embedded sections localized TFF3 protein and also TFF2 in AM cells and Western blot analysis revealed TFF3 protein in AM. Stimulation experiments with proinflammatory cytokines and subsequent TFF3 ELISA measurements revealed that the secretion rate of fresh or cryoconserved AM was not significantly changed. The results indicate that TFF peptides are produced by AM. TFF3 may contribute to ocular surface wound healing after AM transplantation, but its production by AM is not further inducible by proinflammatory stimuli. Cryopreservation has no effect on the secretion rate of TFF3 supporting the use of cryopreserved AM for transplantation.
    Histochemie 04/2012; 138(2):243-50. · 2.61 Impact Factor
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    ABSTRACT: This prospective study investigated associations between prenatal attachment of adult first-time mothers to the unborn child, perinatal factors and levels of depression before and up to 18 months after delivery. Primiparas (N = 161) without specific risk factors answered the following questionnaires during the last term of pregnancy (t1): Edinburgh Postnatal Depression Scale (EPDS), Maternal Antenatal Attachment Scale (MAAS), questionnaire on the schema of the unborn child, and a questionnaire about the pregnancy. Perinatal data were taken from the patients' files. The EPDS was answered 3 weeks (t2, N = 157), 6 months (t3, N = 159), and 18 months (t4, N = 132) postpartum. During pregnancy, 16.9 % of the women indicated mild depressive symptoms, and 7.5 %, medium to severe symptoms of depression. Mild symptoms of depression were found in 25.5 % at t2, 10.1 % at t3, and 12.2 % at t4; medium to severe symptoms were reported by 7.6, 1.9 and 5.6 %, respectively. Women with low control during delivery (emergency Caesarean) showed a tendency for higher levels (p = 0.067) of depression at t3 than women with elective Caesarean did. The quality of prenatal attachment to the unborn child correlated negatively with depressive symptoms at t1-t4. The closer the prenatal attachment of a mother to her unborn child, the less symptoms of depression she reports during the last term of pregnancy and postpartum. Therefore, promoting good mother-child attachment during pregnancy might influence the level of postpartum depression.
    Archives of Gynecology 03/2012; 286(2):309-16. · 0.91 Impact Factor
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    ABSTRACT: To compare diagnostic performance and interobserver variability in a group of 36 examiners, with four different levels of experience. Nine junior trainees, eight level I senior trainees, 11 level II senior gynecologists, and eight level III expert sonologists classified 105 ultrasound images of adnexal masses into three subgroups of ovarian lesions (malignancies, functional cysts, and dermoid cysts). The level III sonologists obtained the best diagnostic results together with the lowest interobserver variability (κ = 0.70, SD = 0.04). They achieved significantly better results in comparison with the junior trainees and also the senior trainees (κ = 0.51, SD = 0.12, p < 0.001; and κ = 0.51, SD = 0.09, p < 0.001). Differences between level III sonologists and the group of level II observers did not reach statistical significance (κ = 0.65, SD = 0.09, p = 0.70). There were no significant differences between senior and junior trainees (p = 1.0) and both groups achieved a significantly poorer diagnostic performance in comparison with the level II observers (p < 0.01 and p < 0.01). For all observers, the largest differences were seen for classifying malignancies, the best results for classifying functional cysts, and the poorest for evaluating dermoid cysts. Diagnostic performance of pattern recognition significantly improves with an increasing level of experience, emphasizing the importance of standardized ultrasound training programs with supervision by experts.
    Archives of Gynecology 01/2012; 285(6):1663-9. · 0.91 Impact Factor
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    ABSTRACT: Maternal depression during the peripartum period has an incidence of about 13%. Individuals with specific genetic predispositions are more vulnerable to stressful life events suggesting that exploration of gene-environmental pathways might facilitate the identification of risk factors for peripartum depression. The aim of this study was to evaluate the influence of stressful life events in combination with the serotonin transporter gene 5-HTTLPR polymorphism on peripartum depressive symptoms. In a non-psychiatric cohort of 419 Caucasians, the severity of depression was assessed prospectively during pregnancy (3rd trimester) and the postpartum period (2-3 days and 6-8 months) using the Edinburgh Postnatal Depression Scale. Satisfaction with the partner and exposure to negative life events were evaluated using self-report questionnaires and the genotype of the 5-HTTLPR was assessed. Repeated measures generalized linear models were used to investigate the gene-environment interaction on depressive symptoms across late pregnancy and the postpartum period. The 5-HTTLPR S-allele carrier status predicted late postpartum depressive symptom severity only in the presence of negative life events. This interaction was not observed for depressive symptoms during the 3rd trimester or the early postpartum. In addition, S-allele carrier status increased the negative effects of dissatisfaction with the current partner on depressive symptoms in the late postpartum period. In this non-psychiatric cohort, the 5-HTTLPR interacts with both lifetime and current stressors to influence depressive symptoms in the late post partum period. These findings could have clinical implications by allowing identification of women at higher risk for developing postpartum depressive symptoms.
    Journal of affective disorders 12/2011; 136(3):1192-7. · 3.76 Impact Factor
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    ABSTRACT: Purpose: The aim of this retrospective study was to compare the accuracy of 10 commonly used weight estimation formulas in a group of fetuses with extreme macrosomia ( ≥ 4 500 g). Materials and Methods: Ten formulas were evaluated in a group of 174 fetuses with a birth weight (BW) ≥ 4 500 g. Each fetus underwent ultrasound examination with complete biometric parameters within 7 days of delivery. The accuracy of the different formulas for fetal weight estimation (EFW) was compared by mean percentage error (MPE), median of the absolute percentage error (MAPE), the "limits-of-agreement" method and the percentage of EFW falling within the 10 % range of the true birth weight. Results: MPE showed the largest deviation from zero with the Schild formula (MPE - 15.43 %) and the Shepard formula (MPE + 6.08 %) and was closest to zero with the Hadlock II formula (MPE - 5.34 %). The MPE of all formulas showed significant bias when compared to zero. All tested formulas, except the Shepard and Shinozuka equations, significantly underestimated fetal weight. The lowest MAPE was found for the Merz formula (7.23 %). The Hadlock II formula obtained the highest percentage of EWF within the 10 % range of the true birth weight (66.1 %). Conclusion: Exact weight estimation in extreme macrosomia remains an unsolved problem, and can therefore only conditionally provide a sufficient basis for clinical decision processes.
    Ultraschall in der Medizin 12/2011; · 4.12 Impact Factor

Publication Stats

227 Citations
135.91 Total Impact Points


  • 2014
    • University Hospital RWTH Aachen
      Aachen, North Rhine-Westphalia, Germany
  • 2013
    • RWTH Aachen University
      Aachen, North Rhine-Westphalia, Germany
  • 2005–2013
    • Friedrich-Alexander Universität Erlangen-Nürnberg
      • Department of Obstetrics and Gynaecology, School of Midwifery
      Erlangen, Bavaria, Germany
  • 2012
    • Deutsche Gesellschaft für Gynäkologie und Geburtshilfe e.V.
      Erlangen, Bavaria, Germany
  • 2011
    • Max Planck Institute of Psychiatry
      München, Bavaria, Germany
  • 2006–2010
    • Universitätsklinikum Erlangen
      • Department of Obstetrics and Gynaecology
      Erlangen, Bavaria, Germany
  • 1997–1999
    • Heinrich-Heine-Universität Düsseldorf
      • Frauenklinik
      Düsseldorf, North Rhine-Westphalia, Germany