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Featured researches published by Cihat Sen.


Journal of Perinatal Medicine | 2001

The use of first trimester ultrasound in routine practice

Cihat Sen

Abstract Since the introduction of ultrasound scanning in early pregnancy, transabdominal or transvaginal ultrasonography has taken on an important role in routine clinical practice in terms of the care of the fetus and the mother. The use of ultrasound in very early pregnancy makes it possible to confirm the intrauterine living embryo or diagnose the extrauterine pregnancy in which medical treatment with low morbidity is feasible with early detection. Early scanning can provide exact dating with acceptable error, which is one of problems encountered in clinical practice. Chorionicity can be correctly established by early scanning (before 14 weeks of gestation) to manage multiple pregnancies properly. The nuchal translucency, which is a transitory abnormality, can be measured for the early screening of Downs syndrome, trisomy-18, trisomy-13, Turners and some other aneuploidy at the 11–14 weeks gestation with approximately 80% detection rate. Early diagnosis of somemajor abnormalities such as anencephaly,megacystis, polycystic kidney, omphalocele is also possible by early scanning. This provides great advantages as the clinical management will be quite different for a case of omphalocele or megacystis. Therefore the early ultrasound scanning has become a routine standard method in the care of the pregnant woman.


Fetal and Pediatric Pathology | 2011

Craniorachischisis with a variant of pentalogy of Cantrell, with lung extrophy.

Alev Atis; Gökhan Demirayak; Burcu Saglam; Figen Aksoy; Cihat Sen

A case of cranioraschischisis including incomplete pentalogy of Cantrell (PC) is described. The female fetus had a large omphalocele with evisceration of the heart, left lung, liver, stomach, and intestines accompanying anencephaly, cervical, thoracal lumbar, spina bifida. The fetus had ectopia cordis and diaphragmatic agenesia with an intact sternum. We present a case of a neonate with the stigmata for PC with the exception of a sternal defect. A literature review is also included. Sonographers should check for ventral and dorsal anomalies with PC because they may occur simultaneously.


Journal of Perinatal Medicine | 2003

Antenatal diagnosis and prognosis of conjoined twins - a case report

Cihat Sen; Ebru Celik; Asli Vural; Kumral Kepkep

Abstract In this report, two conjoined twin cases that were diagnosed at the 19th and 25th week of gestational age are reported. In the first case the pregnancy was terminated because of the very poor prognosis. In the second case the decision was made to continue the pregnancy after counseling explaining the possibility of a separation procedure with good prognosis being carried out after birth. The babies were delivered at 38 weeks of gestation and the separation procedure was carried out at ten months of age without any complications. In selected cases, there is no need to abort, because of the possibility of a separation procedure after birth with good prognosis. Color Doppler ultrasound examination in an early stage of pregnancy in cases of conjoined twin can make it possible to decide which cases are candidates for a separation procedure after birth.


Journal of Perinatal Medicine | 2016

Ultrasound in Africa: what can really be done?

Labaran Dayyabu Aliyu; Asim Kurjak; Tuangsit Wataganara; Renato Augusto Moreira de Sá; Ritsuko K Pooh; Cihat Sen; Alaa Ebrashy; Abdallah Adra; Milan Stanojević

Abstract Today we are living in a globalized world in which information on what is happening in one part of the world is easily communicated to other parts of the world. This happens thanks to advancement in science and technology. One area where technology has made the greatest impact is heath care provision. Ultrasound technology is now playing a critical role in health care provision particularly in Obstetrics and Gynaecology. This has significantly assisted in provision of quality health care to pregnant women and their unborn infants and in reducing maternal and neonatal morbidity and mortality in the developed world. Africa the continent with greatest health care challenges and with the highest maternal and neonatal mortalities is yet to fully utilize this important technology. The need for this technology is great as the conditions requiring its application abound. The effective application of Ultrasound however faces serious challenges in Africa. To successfully entrench Ultrasound in quality Obstetrics and Gynaecology care various approaches must be adopted to overcome the challenges. The aim of this paper is to identify the benefits and the challenges inimical to the application Ultrasound in Obstetrics and Gynecology in Africa. It also examines what needs to be done to achieve better application of Ultrasound in Obstetrics and Gynecology.


Journal of Gastroenterology and Hepatology | 1996

Case report: Liver function abnormalities in a severe case of hyperreactio luteinalis

Hakan Senturk; Seval Erdinc; Mustafa Taşyürekli; Ali Mert; Macit Arvas; Cihat Sen

Rare causes of liver dysfunction in pregnancy may pose a challenge to the consulting gastroenterologist or hepatologist from both the diagnostic and therapeutic standpoints. We describe here liver function abnormalities in a case of hyperreactio luteinalis with light and electron microscopic findings.


Journal of Perinatal Medicine | 2016

Is intrauterine surgery justified? Report from the working group on ultrasound in obstetrics of the World Association of Perinatal Medicine (WAPM)

Renato Augusto Moreira de Sá; Paulo Roberto Nassar de Carvalho; Asim Kurjak; Abdallah Adra; Aliyu Labaran Dayyabu; Alaa Ebrashy; Ritsuko K Pooh; Cihat Sen; Tuangsit Wataganara; Milan Stanojević

Abstract Fetal surgery involves a large number of heterogeneous interventions that vary from simple and settled procedures to very sophisticated or still-in-development approaches. The overarching goal of fetal interventions is clear: to improve the health of children by intervening before birth to correct or treat prenatally diagnosed abnormalities. This article provides an overview of fetal interventions, ethical approaches in fetal surgery, and benefits obtained from antenatal surgeries.


Fetal and Pediatric Pathology | 2012

Multiple fetal anomalies in association with topiramate and oxcarbezepine treatment.

Seyfettin Uludag; Yavuz Aydin; Ozlem Yilmaz; Figen Aksoy; Dogu Vuralli Bakkaloglu; Cihat Sen

We present a case of a woman who used topiramate (100 mg) and oxcarbazepine (300 mg) continuously during pregnancy. Multiple fetal anomalies including limp defects of the lower extremities, pericardiac fluid collection, cardiomegaly, cleft lip and palate, absent right kidney, and dysplastic left kidney were found by ultrasonography. Labor was induced and anomalies were confirmed by autopsy. The malformation rate after exposure to oxcarbazepine in utero as a monotherapy was calculated to be 2.4%, which is compatible with the malformation rate seen in the general population. Topiramate is teratogenic in mice, rats, and rabbits, but there are very few reports about its teratogenicity in humans.


Journal of Perinatal Medicine | 2003

Antalya consensus on perinatal care: the report of the 2nd World Congress of Perinatal Medicine for Developing Countries, 1-5 October 2002, Antalya, Turkey.

Cihat Sen; Murat Yayla; Malcolm Levene

Abstract The goal of antenatal care is to help the mother to maintain her well-being and achieve a healthy outcome for herself and her infant. Education about pregnancy, childbearing and childrearing is an important part of antenatal care. Because of the perception that pregnancy is a physiologic event, even today lots of women do not seek medical care until a problem occurs during their pregnancy. There are still unacceptable differences in the extent of perinatal problems in developed and developing countries. Over the last century almost all countries have accepted antenatal care principles. However, insufficiency of resources and a lack of womens compliance have proved to be obstacles in developing countries and have compelled the application of various standard programs. Unfortunately, these programs are not sufficiently effective in preventing and treating maternal mortality. A safe pregnancy and delivery is a human right. Maternal mortality and morbidity should not be ranked with other diseases, because child bearing is not a disease. For this reason a global ethical consideration imposes an obligation upon society to avoid these almost totally preventable deaths. Ensuring access to family planning is an important way of decreasing maternal death. Maternal morbidity and mortality as well as perinatal mortality can be reduced through the synergistic effect of combined interventions, without first attaining high levels of economic development. These interventions include: education for all, universal childbirth, access to family planning services, attendance at birth by professional health workers, access to good quality care in case of complications, and policies that raise womens social and economic status and increase their access to property and the labor force.


Journal of Perinatal Medicine | 2015

Controversial clinical practices for patients with preeclampsia or HELLP syndrome: a survey

Ahmet Basaran; Mustafa Basaran; Betül Başaran; Cihat Sen; James N. Martin

Abstract Background: Considerable controversy continues to surround the management of severe preeclampsia and HELLP syndrome. Experts, researchers, and those published in the field were surveyed about their specific practices. Materials and methods: An extensive literature search was undertaken to identify the cohort of authors with recent publications on the subjects of preeclampsia (2009–2012) and HELLP syndrome (2005–2012). Online surveys were sent to all authors using the email addresses found in their publications. Results: Surveys were delivered by email to 363 authors of preeclampsia publications and 91 authors of HELLP syndrome publications. Completed surveys were received from 61 (13.4%) of the group. Except for consensus about the indication of corticosteroids for the enhancement of fetal lung maturation, there was considerable variation in corticosteroid practice and anesthesia techniques. Conclusions: A marked diversity in practice characterized the clinical care rendered by experts in the field of preeclampsia and HELLP syndrome. Thus, there is an urgent need for well-designed and executed prospective clinical trials to improve the evidence for best consensus practice in this area of obstetrical medicine.


Journal of Maternal-fetal & Neonatal Medicine | 2011

Late pregnancy associated plasma protein A levels decrease in preterm labor

Alev Atis; Turkan Tandogan; Yavuz Aydin; Cihat Sen; Fatma Turgay; Nezaket Eren; Nimet Goker

Objective. The purpose of the present study is to evaluate late, ‘at admission’, Pregnancy-associated plasma protein-A (PAPP-A) levels as a predictor of preterm birth in women with complaints of preterm labor or preterm painful contractions. Methods. Prospective cohort study of singleton gestations, 23–37 weeks, and symptoms of preterm labor. Primary end point was delivery < 37 weeks. Predictive PAPP-A values were calculated both for preterm delivery and threatened preterm delivery on receiver operator curve. Results. In all, 41 women (38.3%) delivered before 37 weeks (Group 1); 32 women (30.7%) had symptoms of preterm labor but did not deliver preterm (Group 2); 31 women (29.7%) delivered term (Group 3, control). Mean PAPP-A levels in preterm-labor and its matched control were 33.4 ± 19.9 and 52.5 ± 25.4 mIU/ml, respectively, and difference was statistically significant (p = 0.003). Mean PAPP-A level in threatened preterm labor group was 47.6 ± 25.3 mIU/ml and difference was significant compared to preterm-labor, but not significant compared to control group (p = 0.028 and p = 0.74, respectively). Conclusion. Late PAPP-A levels decreased in preterm labor, levels < 29.8 mIU/ml was associated with increased risk for preterm birth, supporting active management whereas cutoff value of 33.6 mIU/ml is useful for discrimination of preterm birth from threatened preterm birth reaching to term.

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