Dr. Öğr. Üyesi ERKAN KALAFAT

1. Effect of the endometrial thickness on the live birth rate: insights from 959 single euploid frozen embryo transfers without a cutoff for thickness

Ata B., Liñán A., Kalafat E., Ruíz F., Melado L., Bayram A., et al.

Fertility and Sterility , cilt.120, sa.1, ss.91-98, 2023 (SCI-Expanded, Scopus)

2. Impact of point-of-care ultrasound and routine third trimester ultrasound on undiagnosed breech presentation and perinatal outcomes: An observational multicentre cohort study

Knights S., Prasad S., Kalafat E., Dadali A., Sizer P., Harlow F., et al.

PLoS medicine , cilt.20, sa.4, 2023 (SCI-Expanded, Scopus)

3. Systematic review and meta-analysis of the effectiveness and perinatal outcomes of COVID-19 vaccination in pregnancy

Prasad S., KALAFAT E., Blakeway H., Townsend R., O’Brien P., Morris E., et al.

Nature Communications , cilt.13, sa.1, 2022 (SCI-Expanded, Scopus)

4. Quality or quantity? Pitfalls of assessing the effect of endometrial thickness on live birth rates

Ata B., KALAFAT E.

Fertility and Sterility , cilt.118, sa.2, ss.428, 2022 (SCI-Expanded, Scopus)

5. Maternal and perinatal outcomes of SARS-CoV-2 infection in unvaccinated pregnancies during Delta and Omicron waves

Birol Ilter P., Prasad S., Mutlu M., Tekin A., O'Brien P., von Dadelszen P., et al.

Ultrasound in Obstetrics and Gynecology , cilt.60, sa.1, ss.96-102, 2022 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

6. Oral Gonadotropin-Releasing Hormone Antagonists in the Treatment of Uterine Myomas: A Systematic Review and Network Meta-analysis of Efficacy Parameters and Adverse Effects

Telek S. B., Gurbuz Z., KALAFAT E., Ata B.

Journal of Minimally Invasive Gynecology , cilt.29, sa.5, ss.613-625, 2022 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

7. Outcomes of a GnRH Agonist Trigger Following a GnRH Antagonist or Flexible Progestin-Primed Ovarian Stimulation Cycle

Kalafat E., Turkgeldi E., Yildiz S., Dizdar M., Keles I., Ata B.

FRONTIERS IN ENDOCRINOLOGY , cilt.13, 2022 (SCI-Expanded, Scopus)

8. Clinical severity of SARS-CoV-2 infection among vaccinated and unvaccinated pregnancies during the Omicron wave

Birol Ilter P., Prasad S., Berkkan M., Mutlu M. A., Tekin A. B., Celik E., et al.

ULTRASOUND IN OBSTETRICS & GYNECOLOGY , cilt.59, sa.4, ss.560-562, 2022 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

9. An internally validated prediction model for critical COVID-19 infection and intensive care unit admission in symptomatic pregnant women.

Kalafat E., Prasad S., Birol P., Tekin A. B., Kunt A., Di Fabrizio C., et al.

American journal of obstetrics and gynecology , cilt.226, 2022 (SCI-Expanded, Scopus)

10. Adverse neonatal outcome in twin pregnancy complicated by small-for-gestational age: twin vs singleton reference charts

Briffa C., Di Fabrizio C., KALAFAT E., Giorgione V., Bhate R., Huddy C., et al.

ULTRASOUND IN OBSTETRICS & GYNECOLOGY , cilt.59, sa.3, ss.377-384, 2022 (SCI-Expanded, Scopus)

11. Should angiogenic markers be included in diagnostic criteria of superimposed pre-eclampsia in women with chronic hypertension?

Binder J., KALAFAT E., Palmrich P., Pateisky P., Khalil A.

ULTRASOUND IN OBSTETRICS & GYNECOLOGY , cilt.59, sa.2, ss.192-201, 2022 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

12. The Comparison of Transvaginal Natural Orifice Transluminal Endoscopic Surgery and Conventional Laparoscopy in Opportunistic Bilateral Salpingectomy for Permanent Female Sterilization

Yassa M., Kaya C., Kalafat E., Tekin A. B., Karakas S., Mutlu M. A., et al.

JOURNAL OF MINIMALLY INVASIVE GYNECOLOGY , cilt.29, sa.2, ss.257-265, 2022 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

13. COVID-19 vaccination during pregnancy: coverage and safety

Blakeway H., Prasad S., Kalafat E., Heath P. T., Ladhani S. N., Le Doare K., et al.

AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY , cilt.226, sa.2, 2022 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

14. The Comparison of Fixed and Flexible Progestin Primed Ovarian Stimulation on Mature Oocyte Yield in Women at Risk of Premature Ovarian Insufficiency

Kalafat E., Dizdar M., Turkgeldi E., Yildiz S., Keles I., Ata B.

FRONTIERS IN ENDOCRINOLOGY , cilt.12, 2022 (SCI-Expanded, Scopus)

15. Role of cervical length and placental alpha microglobulin-1 to predict preterm birth

Gokce A., Kalafat E., ŞÜKÜR Y. E., Altinboga O., Soylemez F.

JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE , cilt.35, sa.17, ss.3388-3392, 2022 (SCI-Expanded, Scopus)

16. COVID-19 vaccination in pregnancy-number needed to vaccinate to avoid harm.

Magee L. A., von Dadelszen P., Kalafat E., Duncan E. L., O'Brien P., Morris E., et al.

The Lancet. Infectious diseases , cilt.21, sa.12, ss.1627, 2021 (SCI-Expanded, Scopus)

17. Do live birth rate and obstetric outcomes vary between immediate and delayed embryo transfers following freeze-all cycles?

Yildiz S., Turkgeldi E., Kalafat E., Keles I., Gokyer D., Ata B.

JOURNAL OF GYNECOLOGY OBSTETRICS AND HUMAN REPRODUCTION , cilt.50, sa.10, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

18. A new definition of recurrent implantation failure on the basis of anticipated blastocyst aneuploidy rates across female age.

Ata B., Kalafat E., Somigliana E.

Fertility and sterility , cilt.116, sa.5, ss.1320-1327, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

19. Short-term outcomes of pregnant women with convalescent COVID-19 and factors associated with false-negative polymerase chain reaction test: A prospective cohort study.

Sahin O., Yildirmak T., Karacalar S., Aydin E., Ciftci M. A., Bagci H., et al.

International journal of clinical practice , cilt.75, sa.11, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

20. Prognostic value of angiogenic markers in pregnant women with chronic hypertension

Binder J., Palmrich P., Kalafat E., Pateisky P., Oeztuerk E., Mittelberger J., et al.

Journal of the American Heart Association , cilt.10, sa.17, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

21. Factors associated with livebirth in couples undergoing their first in vitro fertilization cycle: An internally validated prediction model

Kalafat E., Benlioglu C., Gokce A., ŞÜKÜR Y. E., ÖZMEN B., SÖNMEZER M., et al.

TURKISH JOURNAL OF OBSTETRICS AND GYNECOLOGY , cilt.18, sa.3, ss.212-220, 2021 (ESCI, Scopus, TRDizin)

22. Angiogenic markers and their longitudinal change for predicting adverse outcomes in pregnant women with chronic hypertension

Binder J., Kalafat E., Palmrich P., Pateisky P., Khalil A.

American Journal of Obstetrics and Gynecology , cilt.225, sa.3, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

23. SARS-CoV-2 vaccination in pregnancy: a unique opportunity for equity

Kalafat E., Magee L. A., von Dadelszen P., O'Brien P., Khalil A.

LANCET , cilt.398, sa.10304, ss.951, 2021 (SCI-Expanded, Scopus)

24. COVID-19 and maternal and perinatal outcomes – Authors' reply

Chmielewska B., Barratt I., Townsend R., Kalafat E., van der Meulen J., Gurol-Urganci I., et al.

The Lancet Global Health , cilt.9, sa.8, 2021 (SCI-Expanded, SSCI, Scopus) Sürdürülebilir Kalkınma

25. COVID-19 and maternal and perinatal outcomes

Chmielewska B., Barratt I., Townsend R., Kalafat E., van der Meulen J., Gurol-Urganci I., et al.

LANCET GLOBAL HEALTH , cilt.9, sa.8, 2021 (SCI-Expanded, SSCI, Scopus) Sürdürülebilir Kalkınma

26. Are live birth rate and obstetric outcomes different between immediate and delayed embryo transfers following a freeze-all cycle? A retrospective study combined with a meta-analysis

Yildiz S., Turkgeldi E., Kalafat E., Gokyer D., Keles I., Ata B.

HUMAN REPRODUCTION , cilt.36, ss.451-452, 2021 (SCI-Expanded, Scopus)

27. Global changes in maternity care provision during the COVID-19 pandemic: A systematic review and meta-analysis

Townsend R., Chmielewska B., Barratt I., Kalafat E., van der Meulen J., Gurol-Urganci I., et al.

EClinicalMedicine , cilt.37, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

28. Influenza season during COVID-19 pandemic: the storm that never came

Elsaddig M., Kalafat E., O'Brien P., Khalil A.

Ultrasound in Obstetrics and Gynecology , cilt.57, sa.6, ss.1012-1013, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

29. Effects of the COVID-19 pandemic on maternal and perinatal outcomes: a systematic review and meta-analysis

Chmielewska B., Barratt I., Townsend R., Kalafat E., van der Meulen J., Gurol-Urganci I., et al.

The Lancet Global Health , cilt.9, sa.6, 2021 (SCI-Expanded, SSCI, Scopus) Sürdürülebilir Kalkınma

30. Increased incidence of first-trimester miscarriage during the COVID-19 pandemic

Sacinti K., Kalafat E., Sukur Y., Koc A.

Ultrasound in Obstetrics and Gynecology , cilt.57, sa.6, ss.1013-1014, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

31. Change in obstetric attendance and activities during the COVID-19 pandemic

Khalil A., von Dadelszen P., Kalafat E., Sebghati M., Ladhani S., Ugwumadu A., et al.

The Lancet Infectious Diseases , cilt.21, sa.5, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

32. Benefits and potential harms of COVID-19 vaccination during pregnancy: evidence summary for patient counseling

KALAFAT E., O'Brien P., Heath P. T., Le Doare K., von Dadelszen P., Magee L., et al.

ULTRASOUND IN OBSTETRICS & GYNECOLOGY , cilt.57, sa.5, ss.681-686, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

33. Diagnostic accuracy of fetal choroid plexus length to head biometry ratio at 11 to 13 weeks for open spina bifida

Kalafat E., Ting L., Thilaganathan B., Papageorghiou A. T., Khalil A.

American Journal of Obstetrics and Gynecology , cilt.224, sa.3, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

34. Incidence of postpartum hypertension within 2 years of a pregnancy complicated by pre-eclampsia: a systematic review and meta-analysis

Giorgione V., Ridder A., Kalafat E., Khalil A., Thilaganathan B.

BJOG: An International Journal of Obstetrics and Gynaecology , cilt.128, sa.3, ss.495-503, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

35. Interobserver reproducibility of intracranial anatomy assessment during second trimester sonographic scan

Kalafat E., Yüce T., ASLAN B., ÖZKAVUKCU E., KOÇ F. A., Söylemez F.

Eastern Journal of Medicine , cilt.26, sa.4, ss.511-514, 2021 (Scopus, TRDizin)

36. Ultrasound in labor admission to predict need for emergency cesarean section: a prospective, blinded cohort study

Karaaslan O., Islamova G., Soylemez F., Kalafat E.

Journal of Maternal-Fetal and Neonatal Medicine , cilt.34, sa.12, ss.1991-1998, 2021 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

37. Lung ultrasonography in pregnant women during the COVID-19 pandemic: An interobserver agreement study among obstetricians

Yassa M., Mutlu M. A., Birol P., Kuzan T. Y., Kalafat E., Usta C., et al.

Ultrasonography , cilt.39, sa.4, ss.340-349, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

38. Utility of lung ultrasound assessment for probable SARS-CoV-2 infection during pregnancy and universal screening of asymptomatic individuals

Kalafat E., Yassa M., Koc A., Tug N.

Ultrasound in Obstetrics and Gynecology , cilt.56, sa.4, ss.624-626, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

39. How to perform and interpret the lung ultrasound by the obstetricians in pregnant women during the SARS-CoV-2 pandemic

Yassa M., Mutlu M. A., Kalafat E., Birol P., Yirmibes C., Tekin A. B., et al.

TURKISH JOURNAL OF OBSTETRICS AND GYNECOLOGY , cilt.17, sa.3, ss.225-232, 2020 (ESCI, Scopus, TRDizin)

40. Performance of antenatal diagnostic criteria of twin-anemia-polycythemia sequence

Liu B., Kalafat E., Bhide A., Thilaganathan B., Khalil A.

Journal of Clinical Medicine , cilt.9, sa.9, ss.1-12, 2020 (SCI-Expanded, Scopus)

41. The role of aspirin in prevention of preeclampsia in twin pregnancies: does the dose matter?

Kalafat E., Shirazi A., Thilaganathan B., Khalil A.

American Journal of Obstetrics and Gynecology , cilt.223, sa.3, ss.457-458, 2020 (SCI-Expanded, Scopus)

42. Is umbilicocerebral ratio better than cerebroplacental ratio for predicting adverse pregnancy and neonatal outcomes?

Kalafat E., Kalaylioglu Z., Thilaganathan B., Khalil A.

American Journal of Obstetrics and Gynecology , cilt.223, sa.3, ss.462-463, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

43. Risk of operative delivery for intrapartum fetal compromise in small-for-gestational-age fetuses at term: external validation of the IRIS algorithm

Kalafat E., Morales-Rosello J., Scarinci E., Thilaganathan B., Khalil A.

Journal of Maternal-Fetal and Neonatal Medicine , cilt.33, sa.16, ss.2775-2784, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

44. Maternal cardiovascular function and risk of intrapartum fetal compromise in women undergoing induction of labor: pilot study

Kalafat E., Barratt I., Nawaz A., Thilaganathan B., Khalil A.

Ultrasound in Obstetrics and Gynecology , cilt.56, sa.2, ss.233-239, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

45. A prediction model for detrusor overactivity at ambulatory urodynamics in women with urinary incontinence

SEVAL M. M., ÇETİNKAYA Ş. E., Kalafat E., DÖKMECİ F.

EUROPEAN JOURNAL OF OBSTETRICS & GYNECOLOGY AND REPRODUCTIVE BIOLOGY , cilt.251, ss.156-161, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

46. The association between hypertension in pregnancy and preterm birth with fetal growth restriction in singleton and twin pregnancy: Use of twin versus singleton charts

Kalafat E., Abiola A., Thilaganathan B., Bhide A., Khalil A.

Journal of Clinical Medicine , cilt.9, sa.8, ss.1-11, 2020 (SCI-Expanded, Scopus)

47. SARS-CoV-2 infection in pregnancy: A systematic review and meta-analysis of clinical features and pregnancy outcomes

Khalil A., Kalafat E., Benlioglu C., O'Brien P., Morris E., Draycott T., et al.

ECLINICALMEDICINE , cilt.25, 2020 (SCI-Expanded, Scopus)

48. Re: Ratio of umbilical and cerebral artery pulsatility indices in assessment of fetal risk: numerator and denominator matter

Kalafat E., Ozturk E., Kalaylioglu Z. I., Akkaya A., Khalil A.

Ultrasound in Obstetrics and Gynecology , cilt.56, sa.2, ss.290-292, 2020 (SCI-Expanded, Scopus)

49. Prognostic value of maternal cardiovascular hemodynamics in women with gestational hypertension and chronic hypertension in pregnancy

Kalafat E., Perry H., Bowe S., Thilaganathan B., Khalil A.

Hypertension , cilt.76, sa.2, ss.506-513, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

50. The Prognostic Value of Angiogenic Markers in Twin Pregnancies to Predict Delivery Due to Maternal Complications of Preeclampsia

Binder J., Palmrich P., Pateisky P., Kalafat E., Kussel L., Zeisler H., et al.

Hypertension , cilt.76, sa.1, ss.176-183, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

54. Selective fetal growth restriction in dichorionic twin pregnancies: Diagnosis, natural history, and perinatal outcome

Antonakopoulos N., Pateisky P., Liu B., Kalafat E., Thilaganathan B., Khalil A.

Journal of Clinical Medicine , cilt.9, sa.5, 2020 (SCI-Expanded, Scopus) Sürdürülebilir Kalkınma

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