• Νεογνολογία και Μονάδες Εντατικής Νοσηλείας Νεογνών (ΜΕΝΝ)
• Προωρότητα, ανάπτυξη και νευροαναπτυξιακή έκβαση
• Νεογνική σηψαιμία και λοιμώξεις
• Περιγεννητική ιατρική και επιπλοκές κύησης
• Μητρικοί–εμβρυϊκοί/νεογνικοί βιοδείκτες και μεταβολικός προγραμματισμός
• Εμβολιασμοί και πρόληψη λοιμώξεων

Συνολικά, το έργο της εστιάζει στη κλινική νεογνολογία και εντατική νοσηλεία, αλλά και στους πρώιμους βιολογικούς, περιγεννητικούς και ψυχοκοινωνικούς παράγοντες που «προγραμματίζουν» την υγεία του παιδιού.

Έχει 87 διεθνείς δημοσιεύσεις σε περιοδικά με κριτές, και 39 Ελληνικές, 9 κεφάλαια σε βιβλία, 91 ανακοινώσεις σε διεθνή συνέδρια και 206 σε ελληνικά. Έχει 2287 ετεροαναφορές, H-index 22 και i10-index 43 (Νοεμβ. 2025).

Επιλεγμένες Δημοσιεύσεις:

• Tsatsakis A, Vakonaki E, Tzatzarakis M, Flamourakis M, Nikolouzakis TK, Poulas K, Papazoglou G, Hatzidaki E, Papanikolaou NC, Drakoulis N, Iliaki E, Goulielmos GN, Kallionakis M, Lazopoulos G, Kteniadakis S, Alegkakis A, Farsalinos K, Spandidos DA. Immune response (IgG) following full inoculation with BNT162b2 COVID‑19 mRNA among healthcare professionals. Int J Mol Med. 2021 Nov;48(5):200. doi: 10.3892/ijmm.2021.5033. Epub 2021 Sep 13. PMID: 34515322; PMCID: PMC8448546.

• Kokkinaki T, Hatzidaki E. COVID-19 Pandemic-Related Restrictions: Factors That May Affect Perinatal Maternal Mental Health and Implications for Infant Development. Front Pediatr. 2022 May 12; 10:846627. doi:10.3389/fped.2022.846627. PMID: 35633965; PMCID: PMC9133722.

• Zagkos N, Sinopidis X, Gkentzi D, Sarafidis K, Kontou A, Hatzidaki E, Dimitriou G. Prematurity, Neonatal Intensive Care Unit Admissions and Birth Rates In Four Major Greek Hospitals During the Strictest Quarantine Periods of the COVID-19 Pandemic. J Paediatr Child Health. 2022 Aug;58(8):1491. doi: 10.1111/jpc.16062. Epub 2022 Jun 17. PMID: 35712854.

• Rouva G, Vergadi E, Hatzidaki E, Germanakis I. Mild coronary artery dilatation developed in some children with mild COVID-19 but completely regressed within 3 months. Acta Paediatr. 2022 Sep;111(9):1764-1770. doi: 10.1111/apa.16465. Epub 2022 Jul 4. PMID: 35748529; PMCID: PMC9350397.

• Kokkinaki T, Koutra K, Michopoulou O, Anagnostatou N, Chaziraki L, Kokarida P, Hatzidaki E. Giving Birth in Unpredictable Conditions: Association between Parents’ COVID-19 Related Concerns, Family Functioning, Dyadic Coping, Perceived Social Support and Depressive Symptoms. Healthcare (Basel). 2022 Dec 16;10(12):2550. doi: 10.3390/healthcare10122550. PMID: 36554073; PMCID: PMC9778005.

• Kokkinaki T, Markodimitraki M, Giannakakis G, Anastasiou I, Hatzidaki E. Comparing Full and Pre-Term Neonates’ Heart Rate Variability in Rest Condition and during Spontaneous Interactions with Their Parents at Home. Healthcare (Basel). 2023 Feb 24;11(5):672. doi: 10.3390/healthcare11050672. PMID: 36900677; PMCID: PMC10000654.

• Hatzidaki E, Pagkalou M, Katsikantami I, Vakonaki E, Kavvalakis M, Tsatsakis AM, Tzatzarakis MN. Endocrine-Disrupting Chemicals and Persistent Organic Pollutants in Infant Formulas and Baby Food: Legislation and Risk Assessments. Foods. 2023 Apr 19;12(8):1697. doi: 10.3390/foods12081697. PMID: 37107492.

• Hansen ML, Pellicer A, Hyttel-Sørensen S, Ergenekon E, Szczapa T, Hagmann C, Naulaers G, Mintzer J, Fumagalli M, Dimitriou G, Dempsey E, Tkaczyk J, Cheng G, Fredly S Heuchan AM, Pichler G, Fuchs H, Nesargi S, Hahn GH, Piris-Borregas S, Širc J, Alsina-Casanova M, Stocker M, Ozkan H, Sarafidis K, Hopper AO, Karen T, Rzepecka-Weglarz B, Oguz SS, Arruza L, Memisoglu AC, Del Rio Florentino R, Baserga M, Maton P, Truttmann AC, de Las Cuevas I, Agergaard P, Zafra P, Bender L, Lauterbach R, Lecart C, de Buyst J, El-Khuffash A, Curley A, Vaccarello OO, Miletin J, Papathoma E, Vesoulis Z, Vento G, Cornette L, Lopez LS, Yasa B, Klamer A, Agosti M, Baud O, Mastretta E, Cetinkaya M, McCall K, Zeng S, Hatzidaki E, Bargiel A, Marciniak S, Gao X, Huijia L, Chalak L, Yang L, Rao SA, Xu X, Gonzalez BL, Wilinska M, Yin Z, Sadowska-Krawczenko I, Serrano-Viñuales I, Krolak-Olejnik B, Ybarra MM, Morales-Betancourt C, Korček P, Teresa-Palacio M, Mosca F, Hergenhan A, Koksal N, Tsoni K, Kadri MM, Knöpfli C, Rafinska-Wazny E, Akin MS, Nordvik T, Peng Z, Kersin SG, Thewissen L, Alarcon A, Healy D, Urlesberger B, Baş M, Baumgartner J, Skylogianni E, Karadyova V, Valverde E, Bergon-Sendin E, Kucera J, Pisoni S, Wang L, Smits A, Sanchez-Salmador R, Rasmussen MI, Olsen MH, Jensen AK, Gluud C, Jakobsen JC, Greisen G. Cerebral Oximetry Monitoring in Extremely Preterm Infants. N Engl J Med. 2023 Apr 20;388(16):1501-1511. doi: 10.1056/NEJMoa2207554. PMID: 37075142.

• Tsatsakis A, Oikonomopoulou T, Nikolouzakis TK, Vakonaki E, Tzatzarakis M, Flamourakis M, Renieri E, Fragkiadaki P, Iliaki E, Bachlitzanaki M, Karzi V, Katsikantami I, Kakridonis F, Hatzidaki E, Tolia M, Svistunov AA, Spandidos DA, Nikitovic D, Tsiaoussis J, Berdiaki A. Role of telomere length in human carcinogenesis (Review). Int J Oncol. 2023 Jul;63(1):78. doi: 10.3892/ijo.2023.5526. Epub 2023 May 26. PMID: 37232367.

• Papadakis AE, Giannakaki V, Hatzidaki E, Damilakis J. The effect of added filtration on radiation dose and image quality in digital radiography of newborns. Pediatr Radiol. 2023 Sep;53(10):2060-2068. doi: 10.1007/s00247-023-05698-3. Epub 2023 Jun 13. PMID: 37310445.

• Kakatsaki I, Papanikolaou S, Roumeliotaki T, Anagnostatou NH, Lygerou I, Hatzidaki E. The Prevalence of Small for Gestational Age and Extrauterine Growth Restriction among Extremely and Very Preterm Neonates, Using Different Growth Curves, and Its Association with Clinical and Nutritional Factors. Nutrients 2023 Jul 25;15(15):3290. doi: 10.3390/nu15153290. PMID: 37571226; PMCID: PMC10420820.

• Lygerou I, Ilia S, Briassoulis P, Manousaki A, Koropouli M, Hatzidaki E, Briassoulis G. The Impact of Estimated Energy and Protein Balances on Extrauterine Growth in Preterm Infants. Nutrients. 2023 Aug 11;15(16):3556. doi: 10.3390/nu15163556. PMID: 37630744; PMCID: PMC10458304.

• Syed S, Qasim S, Ejaz M, Sammar, Khan N, Ali H, Zaker H, Hatzidaki E, Mamoulakis C, Tsatsakis A, Shah STA, Amir S. Effects of Dichlorodiphenyltrichloroethane on the Female Reproductive Tract Leading to Infertility and Cancer: Systematic Search and Review. Toxics. 2023 Aug 24;11(9):725. doi: 10.3390/toxics11090725. PMID: 37755736; PMCID: PMC10536953.

• Kakridonis F, Pneumatikos SG, Vakonaki E, Berdiaki A, Tzatzarakis MN, Fragkiadaki P, Spandidos DA, Baliou S, Ioannou P, Hatzidaki E, Nikitovic D, Tsatsakis A, Vasiliadis E. Telomere length as a predictive biomarker in osteoporosis (Review). Biomed Rep. 2023 Oct 3;19(5):87. doi: 10.3892/br.2023.1669. PMID: 37881605; PMCID: PMC10594068.

• Olsen MH, Hansen ML, Lange T, Gluud C, Thabane L, Greisen G, Jakobsen JC; SafeBoosC-III Trial Group. Detailed statistical analysis plan for a secondary Bayesian analysis of the SafeBoosC-III trial: a multinational, randomised clinical trial assessing treatment guided by cerebral oximetry monitoring versus usual care in extremely preterm infants. Trials. 2023 Nov 16;24(1):737. doi: 10.1186/s13063-023-07720-3. PMID: 37974280; PMCID: PMC10655478.

• Benou S, Hatzidaki E, Kalaintzi A, Grivea I, Baltogianni M, Giapros V, Thomaidou A, Sarafidis K, Tsichla S, Sinopidis X, Papachatzi E, Karatza A, Lagadinou M, Dassios T, Dimitriou G, Papaevangelou V, Gkentzi D. Knowledge and attitudes of medical students about clinical aspects of congenital cytomegalovirus infection in newborns: A nationwide cross-sectional study in Greece. Front Med (Lausanne). 2023 Nov 16;10:1256704. doi: 10.3389/fmed.2023.1256704. PMID: 38034533; PMCID: PMC10687632.

• Vergadi E, Kolliniati O, Lapi I, Ieronymaki E, Lyroni K, Alexaki VI, Diamantaki E, Vaporidi K, Hatzidaki E, Papadaki HA, Galanakis E, Hajishengallis G, Chavakis T, Tsatsanis C. An IL-10/DEL-1 axis supports granulopoiesis and survival from sepsis in early life. Nat Commun. 2024 Jan 23;15(1):680. doi: 10.1038/s41467-023-44178-y. PMID: 38263289; PMCID: PMC10805706.

• Genc S, Taghizadehghalehjoughi A, Naldan ME, Gülcü O, Caglayan C, Spanakis M, Nikolouzakis TK, Alegakis A, Docea AO, Drocas AI, Mitrut R, Hatzidaki E, Spandidos DA, Tsatsakis A. Evaluation of various blood biomarkers associated with the outcomes of patients with COVID 19 treated in intensive care units. Exp Ther Med. 2024 Jan 4;27(2):82. doi: 10.3892/etm.2024.12371. PMID: 38274343; PMCID: PMC10809360.

• Vestager ML, Hansen ML, Greisen G; SafeBoosC-III trial group. Alternative consent methods used in the multinational, pragmatic, randomised clinical trial SafeBoosC-III. Trials. 2024 Apr 4;25(1):236. doi: 10.1186/s13063-024-08074-0. PMID: 38575977; PMCID: PMC10996265.

• Chorafa E, Iosifidis E, Oletto A, Warris A, Castagnola E, Bruggemann R, Groll AH, Lehrnbecher T, Ferreras Antolin L, Mesini A, Agakidou E, Controzzi T, De Luca M, Dimitriou G, Emonts M, Esposito S, Fernàndez-Polo A, Ghimenton-Walters E, Gkentzi D, Grasa C, Hatzidaki E, Jõgi P, Kildonaviciute K, Kontou A, Leibold-Aguinarte A, Manzanares A, Mendoza-Palomar N, Metsvaht T, Noni M, Paulus S, Perrone S, Rincón-López E, Romani L, Sánchez L, Cetin BS, Spoulou V, Strenger V, Vergadi E, Villaverde S, Vuerich M, Zamora-Flores E, Roilides E. Antifungal Drug Usage in European Neonatal Units: A Multicenter Weekly Point Prevalence Study. Pediatr Infect Dis J. 2024 Jun 25. doi: 10.1097/INF.0000000000004445. Epub ahead of print. PMID: 38917027.

• Rasmussen MIS, Hansen ML, Peters C, Greisen G; SafeBoosC-III Trial Group. Web-based training and certification of clinical staff during the randomised clinical trial SafeBoosC-III. Trials. 2024 Oct 23;25(1):711. doi: 10.1186/s13063-024-08530-x. PMID: 39444031; PMCID: PMC11515472.

• Konstantinou E, Benou S, Hatzidaki E, Vervenioti A, Dimitriou G, Papaevangelou V, Jones CE, Gkentzi D. Postpartum Interventions to Increase Maternal Vaccination Uptake: Is It Worth It? Vaccines (Basel). 2024 Oct 1;12(10):1130. doi: 10.3390/vaccines12101130. PMID: 39460297; PMCID: PMC11511525.

• Kokkinaki T, Anagnostatou N, Markodimitraki M, Roumeliotaki T, Tzatzarakis M, Vakonaki E, Giannakakis G, Tsatsakis A, Hatzidaki E. The development of preterm infants from low socio-economic status families: The combined effects of melatonin, autonomic nervous system maturation and psychosocial factors (ProMote): A study protocol. PLoS One. 2025 Jan 10;20(1):e0316520. doi: 10.1371/journal.pone.0316520. PMID: 39792923; PMCID: PMC11723634

• Sarafidis K, Iacovidou N, Hatzidaki E, Chatziioannidis I, Dimitriou G. A Survey on the Organization and Operation of Level II/III Neonatal Intensive Care Units in Greece: A Comparison Between 2004 and 2022. Children (Basel). 2025 Jan 13;12(1):85. doi: 10.3390/children12010085. PMID: 39857916; PMCID: PMC11764378.

• Kariniotaki C, Thomou C, Gkentzi D, Panteris E, Dimitriou G, Hatzidaki E. Neonatal Sepsis: A Comprehensive Review. Antibiotics (Basel). 2024 Dec 25;14(1):6. doi: 10.3390/antibiotics14010006. PMID: 39858292; PMCID: PMC11761862.

• Kakatsaki I, Anagnostatou NH, Roumeliotaki T, Panteris E, Liapikos T, Papanikolaou S, Hatzidaki E. Evaluating Prevalence of Preterm Postnatal Growth Faltering Using Fenton 2013 and INTERGROWTH-21st Growth Charts with Logistic and Machine Learning Models. Nutrients. 2025 May 20;17(10):1726. doi: 10.3390/nu17101726. PMID: 40431467; PMCID: PMC12114127.

• Baliou S, Pelagiadis I, Apetroaei MM, Vakonaki E, Arsene AL, Hatzidaki E, Tzatzarakis MN, Ioannou P, Tsatsakis A, Stiakaki E. The Telomere Length Signature in Leukemias-From Molecular Mechanisms Underlying Telomere Shortening to Immunotherapeutic Options Against Telomerase. Cancers (Basel). 2025 Jun 10;17(12):1936. doi: 10.3390/cancers17121936. PMID: 40563586; PMCID: PMC12190229.

• Baliou S, Apetroaei MM, Hatzidaki E, Kuzmin SV, Tzatzarakis MN, Arsene AL, Tsatsakis A, Ioannou P. The Interplay Between Obesity and Type 2 Diabetes: Common Pathophysiological Mechanisms Contributing to Telomere Shortening. Life (Basel). 2025 May 28;15(6):873. doi: 10.3390/life15060873. PMID: 40566527; PMCID: PMC12194111.

• Vakonaki E, Vitiadou MT, Paraskevopoulou NI, Tzatzarakis M, Baliou S, Ioannou P, Alegakis A, Lamprakis T, Fragkiadaki P, Mylonaki E, Volonaki Z, Anagnostatou N, Makrygiannakis F, Makrigiannakis A, Spandidos DA, Tsatsakis A, Hatzidaki E. Correlation of telomere length between full and preterm neonates and their mothers. Exp Ther Med. 2025 Aug 5;30(4):187. doi: 10.3892/etm.2025.12937. PMID: 40831801; PMCID: PMC12360152.

• Vakonaki E, Vitiadou MT, Panteris E, Tzatzarakis M, Tsatsakis A, Hatzidaki E. Maternal Lifestyle During Pregnancy and Its Influence on Offspring’s Telomere Length. Life (Basel). 2025 Aug 6;15(8):1250. doi: 10.3390/life15081250. PMID: 40868898; PMCID: PMC12387188.

Μέλος Διεθνών Επιστημονικών Εταιρειών
• Union of European Neonatal and Perinatal Societies
• European Society for Pediatric Research
• American Academy of Pediatrics
• European Society of Clinical Virology

Μέλος Ελληνικών Επιστημονικών Εταιρειών
• Ελληνική Νεογνολογική Εταιρεία
• Ελληνική Εταιρεία Περιγεννητικής Ιατρικής
• Ελληνική Εταιρεία Παιδιατρικών Λοιμώξεων
• Ελληνική Εταιρεία Κοινωνικής Παιδιατρικής και Προαγωγής Υγείας
• Ελληνική Παιδιατρική Εταιρεία
• Παγκρήτια Παιδιατρική Εταιρεία
• Ελληνικό Κολλέγιο Παιδιάτρων
• Ελληνική Ακαδημία Παιδιατρικής
• Ελληνική Γαστρεντερολογική Εταιρεία