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Biomedical subjects

Inanc Mendilcioglu

Publications and source records attributed to Inanc Mendilcioglu.

15 recordsLinked to original sources

Triploidy in a growth discordant twin pregnancy after intracytoplasmic sperm injection treatment. Case report.

OBJECTIVE: We report on a case of a triploidy in one fetus of a twin pregnancy who presented with the findings of growth discordance. METHODS: Three weeks' difference between fetuses in ultrasonographic measurements in the first trimester was observed in a twin pregnancy following intracytoplasmic sperm injection (ICSI) treatment for male infertility. Hydrocephaly developed in the growth-discordant fetus subsequently. Amniocentesis for both fetuses and selective feticide for the abnormal one was performed at 19 weeks' gestation through a single insertion. Fetal karyotype of the abnormal one was 69,XXX and the healthy one was 46,XX. CONCLUSION: Early developed growth discordance in a twin pregnancy may be a sign of chromosomal abnormality such as triploidy. Those cases should be karyotyped without delay to decrease preterm delivery risk of possible selective feticide.

Diseases in Twins↗

The mid-trimester genetic sonogram.

The genetic sonogram is a composite algorithm combining multiple individual markers to increase Down syndrome risk prediction. Transformation of sonographic information into a standard mathematical format represented an early challenge that has now been surmounted. Using increasingly sophisticated mathematical techniques, individual patient risk can be estimated. High diagnostic accuracy comparable to standard mid-trimester serum algorithms has been reported. Most recently, a few studies have reported the ability to combine serum and biochemical markers to achieve diagnostic accuracy comparable to first-trimester screen. Even fewer studies have reported combinations of ultrasound and maternal urine markers. While it is clear that consistently high sensitivity and specificity for Down syndrome can be achieved, almost all the studies are based on high-risk groups. Studies in low-risk populations have suffered from lack of standardization. The relevance of genetic sonogram in a low-risk population thus remains to be proven. The most significant challenge, however, remains the development of uniform and reproducible sonographic and measurement standards. This is likely to be the most important factor in optimizing the accuracy of the mid-trimester genetic sonogram.

Down Syndrome↗

Comparison of the effects of tibolone and estrogen replacement therapy on echocardiographic basic cardiac functions in post-menopausal women: a randomized placebo controlled study.

OBJECTIVES: This study is designed to investigate and compare the effects of synthetic steroid tibolone and HRT on systolic and diastolic heart functions in post-menopausal women. METHODS: This prospective, randomized placebo controlled double blind study was conducted in a university clinic. Fifty-eight non-smoking, otherwise healthy post-menopausal women who did not receive any kind of HRT at least for 3 years within the onset of menopause were included in the study. The patients were randomly allocated to either 2.5 mg per day tibolone (OD, n = 18), daily combined 0.625 mg of conjugated estrogens 2.5 mg-1 of medroxy progesterone acetate pill (EP, n = 20) or a vitamin pill (n= 20) in a double blinded fashion. Their basic systolic and diastolic functions were investigated with HP Sonos-1000 echocardiography using standard positions and windows before and 6 months after the initiation of HRT. RESULTS: Mean age, weight, length of post-menopausal period, heart rate, systolic and diastolic pressures were similar between the groups. At the initiation of the study all groups had similar echocardiographic measurements. However, at the end of 6 months, left ventricular end-systolic and -diastolic volumes were decreased significantly compared to pretreatment and placebo in both EP and OD treated groups. (55.5 +/- 18.4 and 53.7 +/- 19.1.8 ml; 109.9 +/-19.9 and 110.7 +/- 20.8 ml versus 74.5 +/- 14.9 and 142.7 +/- 19.1 ml, respectively; P < 0.05). Improvement in diastolic functions was significant in EP/OD groups compared to pre-treatment period and the placebo groups (E/A 1.34 +/- 0.1 and 1.38 +/- 0.1 versus 1.18 +/-.09, deceleration time 204 +/- 11.1 and 202.8 +/- 27.1 ms versus 237.6 +/- 26.9 ms, respectively). Besides increase in left ventricular mass adjusted for height, decrease in left ventricular relative wall thickness, and systemic vascular resistance were significant in EP and OD treated groups than placebo and the pre-treatment measurements. Although improved in both OD and EP groups, the changes in systolic and diastolic functions were significantly higher in the OD treated group. Based on our preliminary results, we may conclude that both EP and OD regimens may improve cardiac performance and age related dysfunctions. CONCLUSION: The present results may further support that both OD and EP exert many direct effects on cardiovascular system other than metabolic changes regarding lipoproteins. The greater improvement in the OD group may be explained by its weak androgenic activity which is consistent with the in vitro data that androgens are potent relaxing agents on coronary arteries and restores cardiac myosin isoenzyme and ATPase patterns which mandates further clinical studies.

Androgen Antagonists↗

Recurrent preeclampsia and perinatal outcome: a study of women with recurrent preeclampsia compared with women with preeclampsia who remained normotensive during their prior pregnancies.

OBJECTIVE: To evaluate the impact of preeclampsia recurrence on perinatal outcome. MATERIALS AND METHODS: A case-controlled study was performed in multiparous women who developed preeclampsia in index pregnancy (n = 64). Among these, women who had preeclampsia in previous pregnancies (n = 21) were compared to those who remained normotensive during their prior pregnancies (n = 43). Maternal and fetal variables were compared. Multivariate logistic analyses were performed to examine the impact of preeclampsia recurrence on fetal loss, preterm delivery, small for gestational age (SGA) occurrence and respiratory distress syndrome adjusted for confounding variables. RESULTS: No statistical significant difference was observed between the two groups in terms of age, delivery weeks, steroid use and laboratory markers. Fetal loss was higher in women with recurrent preeclampsia (19.0%) than in women with preeclampsia who had a normotensive pregnancy history (4.7%), with adjusted odds ratio (OR) of 5.77 [95% confidence interval (CI) 0.84-39.54]. CONCLUSION: Women with recurrent preeclampsia had a higher rate of perinatal loss compared to women with preeclampsia who were normotensive in their prior pregnancies.

Adult↗

Early second-trimester individualized estimation of trisomy 18 risk by ultrasound.

OBJECTIVE: To report two second-trimester ultrasound algorithms for trisomy 18 prediction. METHODS: Femur length, gross anomaly, choroid plexus cysts, two-vessel cord, and maternal age were documented in pregnancies undergoing genetic amniocentesis. Stepwise logistic regression was used to identify 1) the significant markers for predicting trisomy 18 when gross anomaly was not considered (algorithm 1) and 2) when gross anomaly was also considered (algorithm 2). Patient-specific risk was calculated based on the significant ultrasound markers plus maternal age. The diagnostic accuracy of each algorithm was determined. RESULTS: There were 1167 normal and 47 trisomy 18 cases. The mean gestational ages were 16.5 weeks (standard deviation [SD] 1.5) and 17.9 weeks (SD 1.6), respectively. Algorithm 1 consisted of maternal age, choroid plexus cyst, femur length, and two-vessel cord. The sensitivity and false positive rates were 61.7% and 1.5%, respectively, with an area under the receiver operating characteristics curve of 0.880 (P <.001). Algorithm 2 (age, femur length, gross anomaly, and choroid plexus cyst) had a sensitivity of 72.3% and false positive rate of 0.9% with an area under the curve of 0.956 (P <.001). Comparable detection rates were achieved in early gestation at up to and including 17.5 weeks (72.4% and 82.8%, algorithms 1 and 2, respectively, at a 4.0% false positive rate). CONCLUSION: The ultrasound markers were sensitive for trisomy 18 detection in the early second trimester.

Adult↗

Placental biopsy by frozen section: does it have a role in evaluation of fetal well-being?

AIM: To assess the effectiveness of post-partum placental biopsy and frozen section evaluation in diagnosing pregnancy disorders. STUDY DESIGN: Between January and July 1998, biopsies were carried out on 100 newly delivered placentas. Biopsies were carried out using a 14-gauge needle, and frozen section evaluations were reviewed. These were compared to the standard evaluation of histological evaluation of the whole placenta sections. Specimens were evaluated by standard placental pathologic criteria. RESULTS: Villous oedema which is associated with antenatal hypoxia was observed with a sensitivity of 78%, and specificity of 97%, yielding a positive predictive value of 84% in frozen section compared to standard placental evaluation. No statistical difference was observed in the evaluation of dysmaturity, intravillous fibrin agglutination and chronic villitis between frozen sectioning and whole placenta sections. Increased syncytial knots were detected with a sensitivity of 45% and specificity of 98%. CONCLUSION: Placental biopsy by frozen sectioning might be a useful and quick method of evaluation for placental pathology. Theoretically, fetal status could be more precisely evaluated by combining prenatal placental biopsy by permanent section with conservative ante-partum well-being tests.

Adult↗

Early genetic sonogram for Down syndrome detection.

OBJECTIVE: The purpose of this study was to determine the Down syndrome sensitivity of early genetic sonography (14-<16 weeks of gestation) and to compare its diagnostic accuracy with that later in the mid trimester (16-24 weeks of gestation). STUDY DESIGN: Nuchal thickness, humerus and femur lengths, hyperechoic bowel, hypoplastic fifth digit (clinodactyly), and any gross anatomic defects were measured or ascertained in singleton pregnancies that were undergoing genetic amniocentesis. Multiple stepwise logistic regression analysis was used to determine the significant sonographic markers for Down syndrome detection in each group. Multivariate gaussian algorithms that included maternal age were used to estimate patient-specific Down syndrome risk. Sensitivity and false- positive rates, receiver-operating characteristic curves, and area under the curves were calculated and compared for both groups. RESULTS: There were 1,727 pregnancies with 22 Down syndrome fetuses (1.27%) in the early group versus 3,914 pregnancies with 86 Down syndrome fetuses (2.2%) in the later group. The mean +/- SD ages were 15.5 +/- 0.4 weeks versus 17.6 +/- 1.4 weeks, respectively. Early genetic sonography (14-<16 weeks) had a 100% detection rate, with a 21.2% false-positive rate. The early versus later genetic sonography had an 81.8% versus 61.6% detection rate, respectively, at a fixed 4.8% false-positive rate. Early sonography had significantly higher diagnostic accuracy (area under the curve, 0.962 vs 0.871, respectively; P =.005). In fetuses at 14 to 15 weeks, the genetic sonography was also highly accurate, with 100% detection with a 21.9% false-positive rate. CONCLUSION: Early genetic sonography is highly sensitive and statistically superior to later ultrasonography for Down syndrome detection. Early midtrimester sonography achieved a diagnostic accuracy similar to that currently reported for first-trimester nuchal translucency.

Adult↗

Midtrimester nuchal thickness and the prediction of postnatal congenital heart defect.

OBJECTIVE: The study was performed to determine the sensitivity of nuchal thickness measurements for the detection of congenital heart defects (CHD) and to develop an algorithm for estimating patient-specific risk of CHD. STUDY DESIGN: Nuchal thickness measurements (expressed as multiples of the median) were obtained in 3,003 midtrimester fetuses in which postnatal evaluation of the heart was available. The sensitivity and false-positive rate of nuchal thickness threshold values for detecting CHD were used to calculate the area under the receiver operating characteristics curve. Stepwise logistic regression analysis was used to determine the significant predictors of heart defect among nuchal thickness and epidemiologic risk factors. Individual risk of CHD was calculated on the basis of background population risk of major CHD (estimated at 4.4 of 1,000) and the product of the likelihood ratios of the significant risk factors from the logistic regression. RESULTS: There were 95 cases of confirmed CHD. Nuchal thickness was statistically significant for the prediction of CHD with an area under the curve = 0.58, P =.01. Nuchal thickness and prior child with CHD were the only significant predictors among the multiple risk factors for this disorder. Patient-specific risk estimates for CHD based on these two "markers" were calculated. It was accurate and improved the prediction of CHD, area under the curve = 0.63, P <.001, compared with nuchal thickness alone. CONCLUSION: Midtrimester nuchal thickness measurement significantly detected postnatally confirmed CHD in chromosomally normal fetuses. We report for the first time a method for estimating individual patient risk of CHD.

Algorithms↗

Complex Müllerian malformation: report of a case with a hypoplastic non-cavitated uterus and two rudimentary horns.

Various classifications have been used for congenital anomalies of the Müllerian system. We report a case of a previously unknown anomaly of the uterus, and propose its possible embryological causes. The patient presented with primary amenorrhoea and infertility, and during laparoscopy three distinct uterine horns were observed. The tubes were connected to the two most lateral horns, each juxtaposed to a normal ovary. The middle horn had a seemingly normal attachment to the right uterosacral ligament, whereas its attachment to the left uterosacral ligament appeared attenuated and less normal. Furthermore, the right horn was immediately attached to the middle horn, whereas the left horn was, like its ipsilateral uterosacral ligament, attached to the middle horn by a more attenuated, stretched fibrous bridge. Only the middle horn, with its uterosacral ligaments, had an attached, although obstructed, cervix. Ultrasonographic examination revealed no endometrium echogeneity in any of these uterine bulbs. No etiologic factors were noted in the patient's history; her mother denied known ingestion of estrogens or other drugs while carrying her daughter. The pathogenesis of this anomaly cannot be clearly defined, but may involve sequential embryological errors of duplication of the Müllerian tracts, failure of fusion of each set of the Müllerian tracts with expected failed canalization of each tract and, finally, agenesis of the medial horn of the left duplicated tracts.

Adult↗

Laparoscopic management of adnexal masses. Safety and effectiveness.

OBJECTIVE: To evaluate the effectiveness and safety of the laparoscopic approach to adnexal masses. STUDY DESIGN: Sixty-one patients who underwent laparoscopic intervention due to various types of adnexal masses between March 1997 and April 1999 in a teaching hospital were assessed retrospectively. Patients with strong evidence of advanced ovarian cancer, such as large masses, ascites or omental cake, were excluded. Frozen section was performed intraoperatively, if indicated. In cases of malignancy, laparotomy was performed. RESULTS: Mean operation time was 67.2 minutes; average hospital stay was 1.2 days. Cyst enucleation was performed in 34% of patients. Two of 61 patients were diagnosed as having malignant disease and converted to laparotomy. Chemical peritonitis was encountered after dermoid cyst removal due to spillage of contents in spite of using an endobag and irrigating copiously with saline. No other complications were seen. CONCLUSION: Laparoscopy is a safe approach to adnexal masses and may decrease the rate of unnecessary laparotomies for benign cysts, which give no suspicious ultrasonographic signs.

Adult↗

Comparison of the long-term histopathologic and morphologic changes after endometrial rollerball ablation and resection: a prospective randomized trial.

STUDY OBJECTIVE: To compare long-term histologic features of endometrial rollerball ablation versus resection. DESIGN: Randomized clinical trial (Canadian Task Force classification I). SETTING: Akdeniz University School of Medicine. PATIENTS: Women with menorrhagia undergoing endometrial ablation. INTERVENTION: Comparison of patients with menorrhagia undergoing endometrial resection and ablation. MEASUREMENTS AND MAIN RESULTS: Endometrial rollerball ablation (n = 23 women) and resection (n = 25) were followed by second-look office hysteroscopy with endometrial biopsy. Mean follow-up to second look hysteroscopy after rollerball ablation and loop resection was 33.4 +/- 2.1 and 31.1 +/- 2.6 months, respectively. Complete atrophy and partial adhesion or obliteration of the cavity and fibrosis were observed at second-look hysteroscopy and were similar in both groups. Whereas all random biopsy specimens after both ablation and resection revealed diminished endometrial glands with varied necrosis and scarring, the number of endometrial glands per field was not correlated with amount of bleeding or menstrual pattern. Bleeding patterns were similar between the groups. No precancerous or malignant lesion was found after the procedures. CONCLUSION: Although efficacy of both endometrial ablation and resection is related to initial thermal destruction and correlated with postablation hysteroscopic and histologic findings, endometrial regrowth may be expected and is not a failure of ablation. Both procedures revealed histopathologically and clinically similar results.

Adult↗