Gynecologist in Assisted Reproduction,
Fertility Specialist
hisbio
Konstantinos
D.Ravanos
MD, MSc
Dr.Konstantinos Ravanos is a distinguished specialist in Reproductive Medicine, bringing a wealth of knowledge and expertise to the Embryolab team. With a career spanning over a decade, his professional journey is commited to advancing the field of Assisted Reproduction and providing compassionate, state-of-the-art care.
Dr.Ravanos academic foundation is both rigorous and international. He holds a Master of Science in Reproduction and Development with Distinction from the University of Bristol in the United Kingdom and an Inter-University Diploma in Operative Gynaecological Endoscopy from the University of Auvergne in France. These qualifications are complemented by a Certificate of Medical Specialisation in Obstetrics and Gynaecology from Greece. His dedication to lifelong learning is further demonstrated by his training in Stem Cells and Regenerative Medicine.
His extensive professional experience is rooted in both hospital and clinical settings. After serving as a Specialist Registrar in Obstetrics and Gynaecology at Hippokratio and Agios Dimitrios General Hospitals in Thessaloniki, he joined an Assisted Reproduction Unit for over a decade, holding the role of Fertility Specialist since 2012 and has served as the Scientific Director since 2016, a testament to his leadership and profound expertise.
As a member of the Hellenic Society of Obstetrics and Gynaecology and a registered medical professional in both Greece and the UK, Dr.Ravanos is dedicated to upholding the highest standards of care. His passion lies in guiding couples and individuals on their journey to parenthood with empathy and cutting-edge medical science.
Publications
- Prapas Y, Ravanos K, Petousis S, Panagiotidis Y, Goudakou M, Pavlidou T, Goudis A, Margioula-Siarkou C, Chalkia-Prapa ME, Prapas N. Day-5 fresh embryo transfer is associated with superior clinical outcomes in oocyte donation cycles compared with day-3 embryo transfer. J Matern Fetal Neonatal Med. 2022 Dec;35(24):4723-4727. doi: 10.1080/14767058.2020.1863360. Epub 2020 Dec 15.
- Prapas Y, Zikopoulos A, Petousis S, Xiromeritis P, Tinelli A, Ravanos K, Margioula-Siarkou C, Chalkia-Prapa EM, Prapas N. Single layer suturing in intracapsular myomectomy of intramural myomas is sufficient for a normal wound healing. Eur J Obstet Gynecol Reprod Biol. 2020 May;248:204-210. doi: 10.1016/j.ejogrb.2020.03.042. Epub 2020 Mar 19.
- Petousis S., Ravanos K., Margioula-Siarkou C., Mavromatidis G., Dinas K., Prapas Y., Prapas N. Vitamin D in Assisted Reproductive Technology (ART): The Therapeutic Regimen, Chapter 6, in book Vitamin D as Progesterone-Like Hormone: Novel Applications in Obstetrics and Gynecology May 2020, ISBN: 978-1-53617-516-5
- Audebert A, Petousis S, Margioula-Siarkou C, Ravanos K, Prapas N, Prapas Y. Anatomic distribution of endometriosis: A reappraisal based on series of 1101 patients. Eur J Obstet Gynecol Reprod Biol. 2018 Nov;230:36-40.n doi:10.1016/j.ejogrb.2018.09.001. Epub 2018 Sep 5..
- Ravanos K, Petousis S, Margioula-Siarkou C, Papatheodorou A, Panagiotidis Y, Prapas N, Prapas Y. Declining Sperm Counts… or Rather Not? A Mini Review. Obstet Gynecol Surv. 2018 Oct;73(10):595-605. doi: 10.1097/OGX.0000000000000599. Review.
- Petousis S, Prapas Y, Margioula-Siarkou C, Ravanos K, Milias S, Mavromatidis G, Kalogiannidis I, Haitoglou C, Athanasiadis A, Prapas N, Rousso D. Unexplained infertility patients present the mostly impaired levels of progesterone receptors: Prospective observational study.Am J Reprod Immunol. 2018 Feb 16. doi: 10.1111/aji.12828.
- Petousis S, Prapas Y, Papatheodorou A, Margioula-Siarkou C, Papatzikas G, Panagiotidis Y, Karkanaki A, Ravanos K, Prapas N. Fluorescence in situ hybridisation sperm examination is significantly impaired in all categories of male infertility. Andrologia. 2018 Mar;50(2). doi: 10.1111/and.12847.
- Ravanos K., Prapas N. The Potential Role of Lipoic Acid in Assisted Reproductive Technologies, Chapter 8 in Book Alpha Lipoic Acid: New Perspectives and Clinical Use in Obstetrics and Gynecology May 2018, ISBN: 978-1-53613-592-3
- Ravanos K, Monastra G, Pavlidou T, Goudakou M, Prapas N Can high levels of D-chiro-inositol in follicular fluid exert detrimental effects on blastocyst quality? Eur Rev Med Pharmacol Sci. 2017 Dec;21(23):5491-5498.
- Prapas Y, Ravanos K, Petousis S, Panagiotidis Y, Papatheodorou A, Margioula-Siarkou C, Iuliano A, Gullo G, Prapas N. GnRH antagonist administered twice the day before hCG trigger combined with a step-down protocol may prevent OHSS in IVF/ICSI antagonist cycles at risk for OHSS without affecting the reproductive outcomes: a prospective randomized control trial. J Assist Reprod Genet. 2017 Nov;34(11):1537-1545.
- Margioula-Siarkou C, Prapas Y, Petousis S, Milias S, Ravanos K, Dagklis T, Kalogiannidis I, Mavromatidis G, Haitoglou C, Prapas N, Rousso D. LIF endometrial expression is impaired in women with unexplained infertility while LIF-R expression in all infertility sub-groups. Cytokine. 2017 Aug;96:166-172.
- Margioula-Siarkou C, Prapas Y, Petousis S, Milias S, Ravanos K, Kalogiannidis I, Mavromatidis G, Haitoglou C, Prapas N, Rousso D. LIF and LIF-R expression in the endometrium of fertile and infertile women: A prospective observational case-control study. Mol Med Rep. 2016 Jun;13(6):4721-8.
- Petousis S, Prapas Y, Margioula-Siarkou C, Milias S, Ravanos K, Kalogiannidis I, Haitoglou C, Prapas N, Rousso D. Expression of progesterone receptors is significantly impaired in the endometrium of infertile women during the implantation window: a prospective observational study. J Matern Fetal Neonatal Med. 2016; Mar 3:1-8
- Ravanos K, Dagklis T, Petousis S, Margioula-Siarkou C, Prapas Y, Prapas N. Factors implicated in the initiation of human parturition in term and preterm labor: a review. Gynecol Endocrinol. 2015;31(9):679-83.
- Co-author of the chapter “Complications of the various systems during pregnancy” of the book: Obstetrics and Gynaecology, D. Roussos. 1st Ed; Tziola Publications, 2015, ISBN:978-960-418-486-6.
- Dagklis T, Ravanos K, Makedou K, Kourtis A, Rousso D. Common features and differences of the hypothalamic-pituitary-gonadal axis in male and female. Gynecol Endocrinol. 2014 Sep 15:1-4.
- Traianos A, Vavilis D, Makedos A, Karkanaki A, Ravanos K, Prapas N, Tarlatzis BC. Effect of short-term tibolone treatment on risk markers for cardiovascular disease in healthy postmenopausal women: a randomized controlled study. Clin Exp Obstet Gynecol. 2013;40(4):542-5.
- Prapas Y, Goudakou M, Matalliotakis I, Kalogeraki A, Matalliotaki C, Panagiotidis Y, Ravanos K, Prapas N. History of endometriosis may adversely affect the outcome in menopausal recipients of sibling oocytes. Reprod Biomed Online. 2012 Nov;25(5):543-8.
- Ravanos K., Kalogiannidis I., Tsertanidou A., Flaris N., Agorastos T. Epithelial ovarian cancer of low malignant potential in a 15 year old patient, a case report. Hellenic Journal of Gynaecology & Obstetrics. 2012;11(1):29-35.
- Collaborative author of the book: High Risk Pregnancy, N. Prapas. 1st Ed; Pasxalides, 2010, ISBN: 978-960-489-005-7.
