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Forensic veterinary toxicology has become a popular branch of toxicology, dealing with animal cruelty (e.g., malicious poisoning), regulatory issues (e.g., contamination of the feed supply chain), insurance litigation or wildlife poisoning. The current study highlights the importance of the toxicological aspects of animal health-related disagreements in a pet custody case following a divorce. In this study, the custody case of three dogs and a cat was concluded with the aid of toxicological test results that were obtained from the pets’ blood samples for the first time in Turkey. The results confirmed the presence of benzoylecgonine in one of the blood samples, as alleged by one of the owners. The study also aims to raise the veterinarians’, as well as the judicial system members’, awareness of drug abuse in pets.

Bu çalışmada, İstanbul ilinin yapım yılları farklı iki otoyolu olan, E80 Tem Otoyolu ve Kuzey Marmara Otoyolu’nun farklı bölgelerinden alınan 36 adet toprak numunesinin kapsamlı inorganik profillerinin belirlenmesi, ayrıca kirlilik faktörü (CF) ve jeo-birikim (Igeo) indeksi hesaplamaları yapılarak çevre toksikolojisi çerçevesinde değerlendirilmesi amaçlanmıştır. Indüktif eşleşmiş plazma-kütle spektrometresi kullanılarak 24 inorganik element aranmış ve iki otoyol arasında Li, Mg, K, Ca, Cr, Ni, As, Sr ve Ba elementleri için anlamlı fark bulunmuştur (p

n this review, we reviewed current literature on COVID-19 infection during pregnancy and provided up-to-date information and community/society recommendations. Although it has previous examples such as SARS and MERS and the infection findings appeared at an earlier period and have become known in China, the infection could not be limited and spread worldwide. Until June 8, 2020, a total of 6.8 million cases were reported and 397,000 cases died. As of the same date, the total case number in Turkey is 171,000 and total number of death is 4711. COVID-19 virus spread by droplets and its incubation period varies between 2 and 14 days. The rate of asymptomatic cases is 42% in non-pregnant patients while it is 44–89% in pregnant women. The disease progresses with mild-medium severity in about 80% of the patients, and it recovers by itself. A total of 17 maternal death cases has been reported. Although vertical transmission risk is very low according to a study investigating 265 pregnant women, there are cases showing fetal vertical transmission and we reviewed such cases in detail in this review.

Nickel (Ni) is a frequently used metal in the production of many products, and Ni exposure occurs in humans through food, inhalation, and skin. Studies reported Ni as the most common allergen diagnosed in the serial patch test. The main purpose of our study was to determine the concentration of Ni and other elements in the urine samples of individuals with Ni-sensitivity and to determine the effect of lifestyle habits on these variables. This study was conducted with 388 participants; additionally, both Ni patch test and inorganic analysis (for 24 elements) method in urine with inductively coupled plasma-mass spectrometry (ICP-MS) were applied to all participants. Ninety-two (23.7%) of the participants were found to have nickel sensitivity with a mean urine concentration of 4.475 mu g/g creatinine (median=4.260; SD=2.527). The urine nickel concentration was significantly different between female and male participants (p =0.001). We found a significant correlation between Ni and other metals alongside various element pairs. The mean urine Ni concentration of the individuals with a positive Ni sensitivity test result was not different from that of the participants without Ni sensitivity (4.475 vs 4.256 mu g/g creatinine, respectively; p = 0.068). The high accuracy, recovery, and repeatability data obtained from the analyses indicate that this study is efficient and appropriate for the quantitative determination of nickel and other elements in urine samples. Ni-containing objects and Ni-rich foods should be of concern for individuals with hypersensitivity reactions to the element.

Objectives This study aimed to evaluate the effect size of each parameter used in the first trimester Down syndrome (DS) risk analyses by using multiple regression analysis techniques. Methods This data mining study included data of 44,260 pregnant women screened at the Acibadem Labmed laboratories from 2010 to 2019. In this study, risk was calculated using the PRISCA software on the basis of nuchal translucency (NT), crown-rump length measurement, in vitro fertilization application, diabetes mellitus, Down syndrome story, smoking, maternal age, and the level of maternal serum biochemistry markers including pregnancy-associated plasma protein-A (PAPP-A) and free beta-human chorionic gonadotropin (hCGβ). Results Forty-four thousand two hundred sixty risk analysis patients result data were re-investigate, and 851 (1.93%) risk analysis results were found as positive. PAPP-A 747 (CI%, 476–1,170) times, NT value 512 (CI%, 343–764) times, DS story 21 times (CI%, 6.7–63.2) and hCGβ value 7.01 (CI%, 6.31–7.79) times affect the combined first-trimester risk analysis results. Conclusions We have suggested that those accurate PAPP-A levels and NT levels evaluation are the most critical point of combined risk analysis and that the risk of free hCGβ levels after PAPP-A is essential as a biochemical test.

Amaç: Son yıllarda fetal anomalilerin prenatal tanı ve takibinde önemli ilerlemeler olmuştur . Çalışmamızda, fetal anomalilerin tanı ve takibinde ultrasonografi ve serum beta-2 mikroglobulin düzeyinin rolünü araştırdık.Yöntemler: Fetal anomali nedeniyle hastanemizde takip edilen 29 olgu çalışmaya alındı. Gebelere önce ultrasonografi yapıldı. Daha sonra, kordosentez ile fetal kan alınarak beta-2 mikroglobulin düzeyi ölçüldü. Karyotip tayini yapıldı. Postnatal fizik muayene ve ultrasonografi sonuçları ve bazı olgularda postnatal beta-2 mikroglobulin düzeyleri olguların antenatal tanıları ve serum beta-2 mikroglobulin düzeyleri ile karşılaştırıldı.Bulgular : Fetal anomalisi olan toplam 29 olgu prospektif olarak değerlendirildi. En çok multisistem anomalisi ve daha az sıklıkta üriner sistem, santral sinir sistemi ve gastrointestinal sistem anomalileri gözlendi. Fetal serum beta-2 mikroglobulin düzeyi olguların %76,5'inde 3 mg/dl'nin üzerinde tespit edildi. Postnatal ultrasonografi ve fizik muayenede olguların 8'inde herhangi bir anomaliye rastlanmadı. Kordosentez yöntemi ile alınan fetal kanda bakılan karyotiplemede 4 (%14) fetusta kromozomal anomali saptandı. Kromozomal anomalili fetusların %50'sinin anne yaşı 35 yılın üzerinde idi.Sonuçlar: Çalışmamızda, antenatal ultrasonografinin fetal anomalileri saptamadaki duyarlılığı %72 idi. Fetal serum beta-2 düzeyi fetal anomalili olguların %76'sında yüksek saptandı. Sonuç olarak, gebelikte belirli aralıklarla prenatal ultrasonografik incelemenin ve anomalili veya anomali şüphesi olan olgularda serum fetal beta-2 mikroglobulin düzeyinin ölçümü prenatal tanı ve takipte faydalı olabilir. Ancak, serum beta-2 mikroglobulin düzeyinin daha homojen bir anomali grubunda çalışılması daha objektif sonuçlar verecektir.&nbsp

These guidelines follow the mission of the World Association of Perinatal Medicine, which brings together groups and individuals throughout the world with the goal of improving outcomes of maternal, fetal and neonatal (perinatal) patients. Guidelines for auditing, evaluation, and clinical care in perinatal medicine enable physicians diagnose, treat and follow-up of COVID-19-exposed pregnant women. These guidelines are based on quality evidence in the peer review literature as well as the experience of perinatal expert throughout the world. Physicians are advised to apply these guidelines to the local realities which they face. We plan to update these guidelines as new evidence become available.

Background:Behçet’s Syndrome (BS) is a vasculitis of unknown origin. Vascular involvement, so-called vascular Behçet’s syndrome (VBS), may involve blood vessels of all sizes belonging to both venous and arterial system, with pulmonary artery involvement (PAI) being the most frequent form of arterial involvement. PAI in BS occurs in the form of aneurysms or thrombosis, and results in significant mortality.Objectives:To report the clinical characteristics of PAI in patients with BS and to define the predictors of relapses.Methods:We performed a retrospective analysis of BS patients with PAI who fulfilled international study group criteria. Among 460 patients with VBS, 66 were diagnosed with PAI. For final analyses, 61 patients with PAI, who had at least 2 follow-up visits (72.1% male, mean age at BS diagnosis 29.34 (SD 10.1) years), were included. The data of the patients were recorded. Relapse was defined as the reoccurrence of vascular event at any vascular structure. Factors associated with relapse were assessed by logistic regression analysis.Results:There were not any differences considering demographic and clinical features of the patients with and without PAI in VBS group except for that intracardiac thrombosis was more common in the patients with PAI than the patients without (19.7% vs 0.3%, respectively) (Figure 1). Among 61 patients with PAI, 50 (82.0%) had isolated pulmonary artery thrombosis (PAT), whereas 11 (18.0%) had pulmonary artery aneurysm (PAA) with or without PAT. The characteristics of 61 patients with PAI were shown in Table 1. A total of 37 relapses occurred in 24 (39.3%) patients during follow-up a median of 65.9 (IQR 20.1-109.0) months. To define the factors associated with relapses, the patients with isolated PAT were analysed. In multivariable logistic regression analysis, older age at BS diagnosis and anticoagulation usage seemed to be protective, even though they could not reach statistical significance (OR: 0.92 95% CI 0.86-1.02, OR: 0.34 95% CI 0.09-1.33, respectively).Table 1.Characteristics of the patients with pulmonary artery involvementAlln= 61Isolated PATn= 50PAAn= 11Sex (male), n (%)44 (72.1)35 (70.0)9 (81.8)Age at diagnosis of BS, years (SD)29.3 (10.1)28.8 (10.4)31.9 (8.0)Age at diagnosis of PAI, years (SD)36.3 (12.83)36.7 (13.8)34.7 (6.7)Symptoms, n (%)Dyspnea28 (45.9)23 (46.0)5 (45.5)Hemoptysis26 (42.6)19 (38.0)7 (63.6)Vascular event before PAI, n (%)21 (34.4)20 (40.0)1 (9.1)Other vascular events at PAI, n (%)33 (54.1)28 (56.0)5 (45.5)Thrombophlebitis, n (%)7 (21.2)6 (21.4)1 (20.0)Upper and/or lower extremity DVT, n (%)20 (60.6)16 (57.1)4 (80.0)SVCS, n (%)1 (3.0)1 (3.6)0 (0)IVCS, n (%)3 (9.1)1 (3.6)2 (40.0)Intracranial thrombosis, n (%)4 (12.1)4 (14.3)0 (0)Intracardiac thrombosis, n (%)8 (24.2)7 (25.0)1 (20.0)Arterial event other than PAI, n (%)4 (12.1)3 (10.7)1 (20.0)Relapse, n (%)24 (39.3)20 (40.0)4 (36.4)Time to the first relapse, median (IQR), month49.8 (13.2-102.6)54.1 (24.4-117.9)3.9 (1.7-67.9)Death, n (%)2 (3.3)0 (0)2 (18.2)BS= Behçet Syndrome, PAI= pulmonary artery involvement, PAT= pulmonary artery thrombosis, PAA= pulmonary artery aneurysm, DVT= deep vein thrombosis, SVCS= superior vena cava syndrome, IVCS= inferior vena cava syndromeFigure 1.A) Axial CT image shows thrombus formation in the left upper lobe pulmonary artery branch. B) Giant thrombus is seen in the right ventricle (black arrow). Note the thrombus formation in the left lower lobe pulmonary artery branches (white arrows).Conclusion:Our results indicate that there is a higher frequency of intracardiac thrombosis in BS patients with PAI and an increasing current trend of PAT in patients with PAI. In addition, there might be a possible efficacy of anticoagulation usage in preventing relapses, which needs confirmation with further studies.Disclosure of Interests:None declared

Advances in technology and wide used of obstetric ultrasound have allowed an increase in the antenatal identification of fetal problems, such as fetal lung lesions. Technological advances in transducer and software technology have remarkably improved visualization of structures in the fetus. Additionally, newer understanding of the natural course of several malformations and new methods of in utero treatment, the evolution of fetal surgical techniques and anesthesia have made fetal surgery possible and have changed the course of evolution of lung defects before and after birth. Therefore, there is now an increasing demand for an accurate and timely diagnosis, counseling, and planning of appropriate management of the cases whether expectant management or in utero therapy at perinatal care centers with timely perinatal transfer. How to cite this article Sen C, Yayla M, Api O, Goynumer G. Fetal Lung Surgery. Donald School J Ultrasound Obstet Gynecol 2016;10(3):271-296.

Prenatal screening for fetal aneuploidies has been focused on mainly Down syndrome in the last 40 years. The method of screening has changed from maternal age in the 1970s, with a detection rate of 30 and 5% false positive rate (FPR), to a combination of maternal age and second-trimester serum biochemical markers (triple test and quadruple test) in the 1980s and 1990s, with 60 to 75% detection rate and 5% false positive rate (FPR). Following this, the era of first trimester screening for Down syndrome has started with the clinical implementation of fetal nuchal translucency screening. The combination of maternal age, NT thickness and serum free beta-human chorionic gonadotropin (â-hCG) and pregnancy-associated plasma protein A (PAPP-A) in the first trimester has yielded a 90% detection rate with a 5% FPR. Starting from the year 2008, studies have shown that the performance of screening may be improved by analysis of cell-free deoxyribonucleic acid (DNA) (cfDNA) in maternal blood. Several studies in the last few years have reported the clinical validation of cell free fetal DNA test in the maternal serum in screening for trisomies 21, 18, and 13 and sex chromosome aneuploidies.Its widespread use is limited by the relatively high cost of the test and the lack of consensus about the optimal way for its clinical implementation. Until the optimal way of incorporating cfDNA into the clinical practice gets identified, it would be wise not to substitute cfDNA testing in place of first-trimester screening for fetal defects and other major complications of pregnancy. Furthermore, it would be preferable for clinicians managing individual patients not to counsel them for their result as positive or negative, rather the clinicians should use the risk estimate from the first-line method of screening as the prior risk and modify this by the appropriate positive or negative likelihood ratio from the cfDNA test.How to cite this articleSen C, Api O, Yayla M, Goynumer G. Cell-free DNA Testing: Where are We now? Donald School J Ultrasound Obstet Gynecol 2016;10(2):172-177.

Objective: The purpose of this study is to show distribution of risk in pregnancies which underwent first trimester combined tests, and investigate general demographic and clinical characteristics of patients, underwent invasive diagnostic tests after screening tests. Methods: Combined test data of first trimester screening in 20082011 were evaluated retrospectively and cross-sectional. After the measurement of nuchal translucency (NT), double test was applied to complete combined test within the same day. Invasive diagnostic procedures were compared in terms of rate, indications, karyotype and postnatal outcomes. Results: A total of 1109 pregnant women were included. Their mean age was 31.07±3.73 years. Free-βhCG was 1.26±0.94 MoM and PAPPA was 1.16±0.65 MoM. Mean NT value was 1.60±0.67 mm. With threshold of 1/250, screening test was positive in 3.1% of the cases. Additional 22 cases due to first trimester screening and 19 cases due to second trimester screening had invasive procedures (6.4% in total). Invasive procedures revealed karyotype anomaly in 11.3%. Karyotype anomalies were more frequent in group (20%) with positive combined test compared to ones performed for other reasons like maternal anxiety. Conclusion: Although false positive rate is 3.1% in first trimester combined test, rate of total invasive procedures is more than double (6.4%). Number of invasive diagnostic procedures increased due to maternal anxiety of age and physicians evaluating only NT or double tests. With diagnostic procedures, chromosome anomalies reaches 11% and termination need reaches 10%. Invasive procedures performed due to anxiety of mother or physician revealed no chromosomal anomaly requiring termination.

Objective: Our aim was to determine the distribution of chorion and amnion sac types in twin pregnancies during the routine screening procedures during the first trimester, and to investigate their relevance with pregnancy being natural or by assisted reproductive technology. Methods: Twin pregnancies analyzed during routine first trimester screening were evaluated retrospectively. The twins were grouped according to their conception types which are natural birth and by assisted reproductive technologies (ART). The cases which have missing or suspicious information about chorion-amnion types and with unknown conditions for pregnancies whether they were by ART or naturally were excluded from the study. In the sonographic chorionicity distinction, the presence of classic lambda and T signs was considered. The unavailability of amniotic membrane among fetuses was defined as monoamniotic twin. Results: During 14 years, 286 twin pregnancies were considered as appropriate cases to analyze. Mean maternal age was 30.47±5.07 years, and mean week of gestation during sonography was 12.23±0.70. Double placentas were found in 83.2% of all pregnant women, and single placenta in 16.7% of all pregnant women. While 54.5% (n=156) of twin pregnancies were ART pregnancies, 45.5% of them were natural pregnancies. It was determined that 67.7% of natural twins were diamniotic dichorionic, 27.7% of them were diamniotic monochorionic and 4.6% of them were monoamniotic monochorionic while 96.2% of ART pregnancies were diamniotic dichorionic, 3.2% of them were diamniotic monochorionic and 0.6% of them were monoamniotic monochorionic. There was statistically significant difference between ART twins and natural twins in terms of chorionicity distributions (p

To establish a reference range for the intracranial translucency (IT). In this prospective study, we examined 596 singleton fetuses at 11–14 weeks of gestation using transabdominal ultrasonography. The distribution curves of the anterior–posterior diameter of the IT were established according to the gestational weeks, and the percentiles for 11–14 weeks of gestation were calculated. Regression analysis was performed to estimate the relationship between the anterior–posterior diameter of the IT and other fetal biometric parameters. The mean anterior–posterior diameter of the IT was 1.8 ± 0.4 mm. From 11 to 14 weeks of gestation, the IT diameter increased linearly with advancing gestation. The linear regression equation for the IT × crown–rump length (CRL) was IT = CRL × 0.0184 + 0.575 (R = 0.385, p

Objective: It was aimed to compare the consistency according to genders between clinical weeks of gestation and weeks of gestation calculated based on crown-rump length (CRL) found ultrasonographically at 11 0/7

Objective: Trisomy 8 mosaicism (MT8) is characterized by intracranial, genitourinary and skeletal system anomalies, congenital cardiovascular disorders, deep palmar and plantar creases, and neoplastic and hematological disorders. In the literature, there are only a few antenatal ultrasound (US) and fetal magnetic resonance imaging (MRI) findings reported for MT8. Case: The fetus whose gestational age was 26 weeks and 4 days was referred for fetal MRI due to corpus callosum agenesis suspected in routine US screening. We are presenting the major and minor MRI findings of the fetus in this case report. Conclusion: Fetal MRI can be used in addition to the antenatal ultrasound to evaluate genetic syndromes such as trisomy 8 mosaicism and to identify additional anomalies which cannot be found in the ultrasound screening.

Background: We aimed to compare the second trimester uterine artery Pulsatility Index (PI) measurement in twin pregnancies according to the chorionicity and determine its effect on twin pregnancy outcome in terms of fetal and birth weight. Methods: All medical records of twin pregnancies, whose fetal screening was done between May 1999 and January 2012, were evaluated retrospectively. All twin pregnancies without detected/suspicious anatomical or genetic fetal anomalies, biochemical abnormalities, and familial genetic diseases were included in the data analyses. Ones with missing PI measurements and ones with undetermined chorion types were excluded from the data analyses. Results: A total of 149 twin pregnancies were evaluated. The percentages of chorion types were diamniotic dichorionic in 89.9% (n=134) and diamniotic monochorionic 10.1% (n=15). Mean age of the mothers was 31.56 ± 4.9 years. Mean gestational week of PI measurement was 20.30 ± 2.23 weeks. Mean birth week was 35.5 ± 2.50 weeks. Mean birth weight was 2405 ±437 grams. Correlation analyses related to PI values and second trimester weight and birth weight parameters didn’t show any statistically significant correlation. Mean maternal age, mean gestational week of PI measurements, mean birth week, mean fetal weights and birth weights were indifferent between chorionicity groups. Comparisons of second trimester PI, second trimester weight and birth weight and related parameters showed no statistically significant between groups. Conclusions: Second trimester uterine artery pulsatility index measurements do not differ between chorionicity types. It has no effect on twin pregnancy outcome in terms of fetal weight and birth weight.

Although titanium is a highly inert material, it may corrode when in contact with the oral cavity. This study aimed to examine the titanium presence and levels in gingiva samples that had been in contact with a dental implant cover screw for 3 months. Twenty two-staged dental implants were included in the study as a test group. Gingiva samples were taken over the implant sites. Ten control samples were obtained from oral mucosa during gingivoplasty. All samples were analyzed by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry. The results showed that the average semi-quantitative titanium levels were higher in the test group (50.4 µg/g ± 23.5 µg/g) than in the control group (37.1 µg/g ± 1.0 µg/g). This difference was found to be statistically insignificant (p = 0.075). The presented study showed that titanium may corrode in a relatively short time. Long-term studies are needed with a higher number of patients and varying conditions to evaluate the titanium levels in the soft tissues around implants.

Measurement of intracranial translucency (IT), which is a recent earlier recognizable sonographic marker, has been suggested for detection of spina bifida. In this prospective study we aimed to determine normative values of IT in the population of Turkish singleton pregnant women during the first trimester of pregnancy.Between January 2011 and July 2011, all consecutive singleton pregnant women were screened for intracranial translucency. Pregnancies were followed until birth. Pregnancies with any detected/suspicious anatomical or genetic fetal anomalies, biochemical abnormalities, increased nuchal translucency measurements, pregnancies of artificial reproduction techniques and anomaly detected at birth were set to be excluded from the data analyses. Mean±standard deviation, median and percentile values of intracranial translucency were calculated. Linear regression analyses were done between the length of intracranial translucency and gestational week and CRL.Data analyses included 201 fetuses. Median maternal age was 31 years. Median CRL was 62 mm. Median gestational week was 12.57 weeks. Median IT value for the first trimester was 1.7 mm (range 1.00-2.40). Calculated formulae are; IT (mm)=[0.237×Gestational Week)]-1.27, R(2)=0.302; p0.001 and IT (mm)=[0.020×CRL (mm)]+0.44, R(2)=0.381; p0.001). IT measurements increased with increasing CRL and advancing gestational weeks. During follow up none of the fetuses was found to have any anatomical abnormality or anomaly.This study presents normative values of intracranial translucency in the first trimester screening of normal singleton pregnancies of the Turkish population. In accordance with previous reports, intracranial translucency increases linearly with advancing CRL.Yeni erken saptanabilen sonografik bir marker olan intrakraniyel translüsensi ölçümü sipina bifida varlığının saptanması için önerilmektedir. Prospektif olan çalışmamızda Türk popülasyonundaki tekil gebeliklerde birinci trimester fetal intrakraniyel translüsensi (IT) ölçümlerinin normal dağılımının saptanması amaçlandı.Ocak 2011 ve Temmuz 2011 tarihleri arasında tüm ardışık tekil gebelerde intrakraniyel translüsensi ölçümleri bakıldı. Gebeler doğuma kadar takip edildi. Şüpheli veya gösterilen anatomik/genetik fetal anomalileri, biyokimyasal değer anormalliği, artmış nukal kalınlığı yada doğumda anomali saptanan fetuslar ve yardımcı üreme teknikleri uygulanmış fetuslar değerlendirme dışında tutuldu. İntrakraniyel translüsensi için ortalama±standart deviasyon, medyan ve persentil değerleri hesaplandı. Lineer regresyon analizleri ile intrakraniyel translüsensi ve gebelik haftası ve CRL arasındaki ilişki saptandı.Veri analizlerine 201 fetus dahil edildi. Medyan anne yaşı 31 yıl, medyan CRL 62 mm ve medyan gebelik haftası 12.57 hafta saptandı. Birinci trimester için medyan IT değeri 1.7 mm (aralık 1.00–2.40) bulundu. Hesaplanan formüller; IT (mm)=[0.237×Gebelik Haftası]−1.27, R2=0.302; p0.001 ve IT (mm)=[0.020×CRL (mm)]+0.44, R2=0.381; p0.001. IT ölçümleri artan CRL ve ilerleyen gebelik haftası ile birlikte artıyor olarak saptandı. Takip esnasında hiçbir fetusta anomali saptanmadı.Mevcut çalışmada Türk popülasyonundaki tekil gebeliklerde birinci trimester fetal intrakraniyel translüsensi normal dağılımları gösterilmektedir. Literatür ile uyumlu olarak, intrakraniyel translüsensi ilerleyen gebelik haftası ve CRL ile lineer olarak artmaktadır.

Evaluation of nasal bone improves the performance of first-trimester screening for trisomy 21. In this retrospective study we aimed to determine normative values related to the measurement of nasal bone length of the Turkish population during the first trimester ultrasonographic fetal screening.Medical records of singleton pregnancies, whose first trimester fetal screening was performed between 2004 and 2010, were evaluated retrospectively. Pregnancies with any detected/suspicious anatomical or genetic fetal anomalies, biochemical abnormalities, increased nuchal translucency measurements, and pregnancies of artificial reproduction techniques were excluded from data analyses. Mean±standard deviation, median and percentile values of the length of nasal bone were calculated separately for 11(0-6), 12(0-6) and 13(0-6) gestational weeks.Nasal bone could be visualized in 99.6% of the included 1762 singleton pregnancies. In 16.5% of the cases nasal bones were only noted as present or absent. Mean maternal age was 29.67±4.50 years and mean gestational age was 12.54±0.61 weeks. Median values of nasal bone lengths were 1.7, 1.9, and 2.2 mm for 11(0-6), 12(0-6) and 13(0-6) gestational weeks respectively. Nasal bone length (NBL) increased linearly with advancing gestational age and CRL. NBL (mm)=[0.298xGestational Age (week)]-1.779, R(2)=0.318; p0.001; NBL (mm)= [0.023 × CRL (mm)] + 0.520, R(2)=0.331; p0.001.The present study presents normative values of nasal bone in the first trimester screening of normal singleton pregnancies of Turkish population. Nasal bone length increases with advancing gestational age and CRL.Birinci tirmester trizomi 21 taramasında nazal kemik değerlendirmesi performansı arttırmaktadır. Bu retrospektif çalışmada Türk popülasyonundaki tekil gebeliklerde birinci trimester fetal nazal kemik ölçümlerinin gebelik haftalarına göre persentil dağılımlarının saptanması amaçlandı.Retrospektif olarak 2004 ve 2010 tarihleri arasında taraması yapılmış olan anatomik anomali, biyokimyasal değer anormalliği, aile öyküsünde genetik hastalığı olmayan, nukal kalınlığı normal olan spontan tekil gebelikler değerlendirmeye alındı. 11Dahil edilen 1762 tekil gebeliğin %99.6’sında nazal kemik görüntülenmişti; bunların %16.5’inde nazal kemik sadece var ya da yok olarak not edilmiştir. Ortalama anne yaşı 29.67±4.50 yıl ve ortalama gebelik haftası 12.54±0.61 idi. Nazal kemik ölçümlerinin medyan değerleri 11

Objective To describe a new surgical technique to treat prophylactic gonadectomy in patients with androgen insensitivity syndrome. Design Prospective study. Setting University hospital. Patient(s) Six patients with androgen insensitivity syndrome. Intervention(s) Laparoscopy-assisted transinguinal or suprapubic extracorporeal gonadectomy. Main outcome measure(s) Accessibility, operation time, and cost-effectiveness. Result(s) Laparoscopy-assisted transinguinal extracorporeal gonadectomy under general anesthesia was performed successfully, with no complications, in all patients as a one-day procedure. The operation times were 12 to 22 minutes (average, 16 minutes). Histopathologic examination revealed testicles in all cases. The cost of each operation was approximately $500 to $1,000. Conclusion(s) Laparoscopy-assisted transinguinal or suprapubic and extracorporeal gonadectomy has several advantages over laparotomy and operative laparoscopy, including short operating time, safety, simplicity, and cost-effectiveness.

Preterm delivery (PTD), defined as birth before 37 completed weeks of gestation, is the leading cause of perinatal morbidity and mortality. Evaluation of the cervical morphology and biometry with transvaginal ultrasonography at 16–24 weeks of gestation is a useful tool to predict the risk of preterm birth in low- and high-risk singleton pregnancies. For instance, a sonographic cervical length (CL) > 30 mm and present cervical gland area have a 96-97% negative predictive value for preterm delivery at

The authors would like to thank Istanbul Asphalt Factories Head of Production Zafer Sola for helping. This work was supported by the Scientific Research Projects Coordination Unit of Istanbul University, Project number UDP-4547/13112009. The aim of this study is to evaluate the effect of the different types of fly ash on the compressive strength properties of sintered briquettes. Thermal gravimetric (TG) analysis was carried out. The chemical composition and physical properties of the materials used were determined. Particle size distribution and microstructure elemental analyses of the materials used were carried out by a particle size analyzer (Mastersizer) and a scanning electron microscope (SEM-EDS). Following the characterization of the materials, briquettes were prepared by sintering at different temperatures. Compressive strength test results of the briquette samples indicated that briquettes with a compressive strength value of 47.45 N/mm(2) can be produced. The results obtained exceed the Turkish standard (TS EN 771-1) requirements (9.8-23.54 N/mm(2)). SEM-EDS results showed that briquette samples made with Tuncbilek (T) fly ash had a higher percentage of the glassy phase than the other briquette samples. Due to this microstructure, it results in higher compressive strength value. Istanbul University UDP-4547/13112009

In this report, we describe a rare cause of in utero fetal death, a complex entanglement of the umbilical cord around the fetal neck. At the 16th gestational week of pregnancy, routine fetal ultrasonography showed no fetal heartbeat. Thereafter, the fetus was delivered vaginally in the breech presentation. The neck was found to be encircled by multiple tight loops of the umbilical cord. Other than a thin and elongated neck, there were no dysmorphic features and no chromosomal abnormality on cytogenetic analysis.

Holoprosencephaly (HPE) is commonly associated with facial malformations. We present a case of semilobar HPE associated with distal limb defect which was detected at 12 weeks of gestation.The fetus had a crown-rump length of 60 mm (12 weeks-4 days), had nuchal translucency thickness of 1.5 mm. Initial two-dimensional (2D) ultrasound revealed the absence of nasal bone, decreased BPD and abnormal profile. Transvaginal 2D ultrasound was effective in the detection of HPE (partially absence of the interhemispheric fissure, fused thalami, the choroid plexuses were not visualized bilateraly: absent 'butterfly' sign), cylopia, absence of the nose and unilateral radial aplasia. Three dimensional (3D) ultrasound provided a better visualization of the associated anomalies. The necropsy result confirmed the sonographic findings: the diagnosis was semilobar HPE, cyclopia, absence of the nose, and the absence of the radius and the thumb in the left arm.Transvaginal 2D sonographic examination is effective in detection of the cases with HPE at first trimester. Fetal morphological study through 3D ultrasound may facilitate the diagnosis of associated anomalies.

Objective. Our aim is to investigate sonographically detectable vault hematomas after vaginal hysterectomy and its relation to postoperative morbidity. Methods. We studied a group of 103 women who had undergone vaginal hysterectomy for benign causes apart from uterovaginal prolapse. Transabdominal ultrasound examinations were carried out 24 to 72 hours after surgery to assess the presence of vault hematomas. Ultrasound findings were correlated with clinical data and postoperative morbidity. Results. The incidence of vault hematoma was found 19.4% in present study. In these patients, 40% (8/20) had fever while only 2.4% (2/83) of cases without vault hematoma suffered from fever. Out of all women having vault hematoma, 70% (14/20) had small-sized hematoma and 30% (6/20) had large-sized hematoma. Fifty percent of patients (3/6) with large-sized hematoma, as compared to only 35% (5/14) with small-sized hematoma, suffered from febrile morbidity. Large-sized hematomas drained by vaginally, while all small-sized pelvic hematomas managed by watchful expectancy successfully. The significant difference was found mean hemoglobin drop and postoperative stay in the hematoma group or without hematoma group. Conclusion. Sonographic detection of vaginal vault fluid collection is common after hysterectomy, but such a finding rarely indicates additional treatment. Though febrile morbidity was more in cases with vault hematoma, the number of such patients was too small to be significant. Vaginal ultrasound examination should not be performed routinely after hysterectomy.

Objective To report a case of successful pregnancy after hypogastric artery ligation and the B-Lynch brace suturing technique. Design Case report. Setting Education and research hospital. Patient(s) A 22-year-old woman, whose first pregnancy was terminated by cesarean section owing to abruptio placenta and intrauterine fetal demise diagnosed at the 26th week of gestation, referred to our clinic for uterine atony. Intervention(s) Hypogastric artery ligation and the B-Lynch brace suturing technique. Main Outcome Measure(s) Clinical pregnancy and live birth. Result(s) Two years after the surgery, the patient conceived spontaneously and delivered a healthy infant after an uneventful pregnancy. Conclusion(s) This is the first reported case of successful pregnancy after hypogastric artery ligation and B-Lynch suturing technique. This life-saving therapeutic option for severe postpartum hemorrhage appears to be a safe procedure that does not impair subsequent fertility and pregnancy outcomes. The B-Lynch suturing technique seems to be simple and has the capability of preserving the uterus; therefore it may be considered as the first-line surgical treatment for uterine atony before considering hysterectomy.