Who is Dr Dionysios Alexandrou

Dr Dionysios Alexandrou

Education and Training

Dr. Alexandrou graduated from Athens University Medical School. He undertook his entire paediatric specialist training in the UK and he further developed his expertise at the University of Western Ontario, London, Canada, where he was appointed as a fellow in Perinatal Medicine. His specialist postgraduate training in Paediatrics was undertaken in a number of major centres in the UK, including St Thomas’s Hospital London, St James’s University Hospital Leeds, The Bristol Royal Hospital for Sick Children, Alder Hey Children’s Hospital Liverpool, St George’s Hospital-Medical School London, and John Radcliffe Hospital Oxford, where he gained extensive experience in General Paediatrics and in a wide range of paediatric subspecialties, including neonatal medicine, paediatric intensive care, peadiatric oncology-haematology & bone marrow transplantation, paediatric surgery with particular emphasis in urology, and paediatric gastroenterology.

Academic: Teaching and Research

Dr. Alexandrou was appointed in an academic post as a Clinical Lecturer in Child Health at St George’s Medical School, University of London. During that period of time he was teaching Paediatrics in St George’s Medical School and he also undertook a research project on lung development, culminating in the award of a higher research degree (MD, University of London) in 2009. His research was focused on ion and liquid transport in the developing lung during late fetal-early neonatal period, with emphasis on the cardio-respiratory adaptation at birth. His work was presented at the UK Physiological Society Meeting in Newcastle University, in September 2009 and was subsequently published in a peer-reviewed journal (August 2012). Dr Alexandrou is continuing his research activity as an Honorary Senior Lecturer at the Institute of Reproductive and Developmental Biology, Hammersmith campus, Imperial College, London. His current work is focusing on the investigation of the innate immune response of the late fetal-early neonatal lung to infection, and its effect on lung disease later in life. Dr Alexandrou has extensive teaching experience both at undergraduate and postgraduate level. He lectured Paediatrics at St George’s Medical School, London and also at the Oxford Medical School. He is an instructor and Medical Director for the Resuscitation Council UK, regularly teaching Neonatal Life Support (NLS) to a wide range of clinicians at a national level. Publications in peer-reviewed journals: • Alexandrou D and Walters DV. The role of Cl- in the regulation of ion and liquid transport in the intact alveolus, during β-adrenergic stimulation. Experimental Physiology, August 2012. DOI: 10.1113/expphysiol.2012.066159 • Alexandrou D, Benjamin AR, Walters DV. Active Cl- and alveolar fluid transport under adrenergic stimulation in the in situ perfused lung. Journal of Physiology (2009), PC25, p58. • R.W.J.Junor, A.R. Benjamin, D. Alexandrou, D. V. Walters: The independence of lung liquid absorption in postnatal sheep on pulmonary blood flow, blood gases or perfusion pressure. Experimental Physiology (2001), 86(3), 391-398. • R.W.J. Junor, A.R. Benjamin, D. Alexandrou, S.E. Guggino, D.V. Walters: Lack of a role for cyclic nucleotide gated cation channels in lung liquid absorption in fetal sheep. Journal of Physiology (2000), 523(2), 493-502. • R.W.J.Junor, A.R. Benjamin, D. Alexandrou, S.E. Guggino, D. V. Walters: A novel role for cyclic nucleotide gated cation channels in lung liquid homeostasis in sheep. Journal of Physiology (1999), 520(1), 255-260. • O. Da Silva, D. Alexandrou, B Young, D Knoppert: seizure and EEG changes in the newborn period, induced by opiates and corrected by Noloxone infusion. Journal of Perinatology (1999), 19(2) 120-123.

Professional Qualifications

• Medical Degree, Athens University, 1985 • MRCP(UK), Paediatrics (1994) • CCST, Paediatrics (2004) • FRCPCH (2009) • MD (London), (2009)

Professional Memberships and Affiliations

General Medical Council – registration number 3346044 British Medical Association Royal College of Paediatrics and Child Health British Association of Perinatal Medicine (BAPM) The Neonatal Society, UK European Society of Paediatric Infectious Disease (ESPID) The Society of Apothecaries of London.


Dr Alexandrou is a London-based Consultant Paediatrician and Neonatologist.


His private practice is located on London’s Portland Hospital for Women and Children, the UK’s largest independent Children’s Hospital. At the Portland Hospital, and as a member of a team of leading consultant paediatricians, Dr Alexandrou is offering two levels of care: the assessment and management of acutely unwell children within the hospital and outpatients’ consultations.

Dr Alexandrou has extensive experience in all aspects of General Paediatrics and Paediatric sub-specialties. He has practiced Paediatrics in several major paediatric institutions in the UK and Canada. He has a special interest in the care of the newborn and the early years of life.

Dr. Alexandrou’s practice comprises a broad spectrum of paediatric conditions. He specializes particularly in neonatal medicine and problems of the newborn, infant and the child during the early years of life, including jaundice of the newborn, feeding and growth problems, gastro-oesophageal reflux in infants and its complications, skin conditions such as cradle cap, eczema, birth marks, and advice on immunization. Dr Alexandrou places particular importance in development during the early years of life and he is a passionate advocate of the formal developmental assessment of the developing infant. He is qualified and experienced in the formal neurodevelopmental assessment using the Bayley Scales of Infant and Toddler Development. His practice also encompasses the investigation and management of conditions affecting the airways and the lungs, such as asthma, wheeziness, chest infections and unexplained cough, diarrhoea and vomiting, constipation, ear infections & glue ear, and the investigation and management of urine infections in the early years of life.

Special Interest:

Problems of the newborn and the first years of life, including unsettled babies/excessive crying, gastro-oesophageal reflux, colic and feeding problems, constipation, chronic/recurrent cough and wheeze, ear and urinary tract infections. I have a clinical and academic interest in infections and immunity in children, including vaccination.


Dr Alexandrou – Portland Hospital Profile