Officers of the Executive Committee

Professor Douglas McWhinnie - President

Doug McWhinnie graduated from Glasgow University Medical School in 1977 and was appointed Clinical Lecturer in Surgery and Surgical Tutor at Oxford University in 1983. While completing his research MD with Honours in the immunology of Renal Transplant rejection, he developed an interest in day surgery  through day case laparoscopic cholecystectomy and laparoscopic inguinal hernia rapair. He was appointed Consultant general and Vascular Surgeon in Milton Keynes in 1993 and in 1997 opened the first dedicated 23 hour unit in the UK to complement an expanding day unit.  Doug was an executive member of the commissioning group which , in 2005,opened the Milton Keynes Ambulatory Treatment Centre successfully co-locating preassessment, day surgery and 23 hour surgery in the same building.

 In 1998, he became a council member of the British Association of Day Surgery, and having held a number of executive positions,  was appointed President of the Association in 2008. After joining the General Assembly of IAAS in 2010, he was appointed Surgical Editor-in-Chief of the Journal of Ambulatory Surgery the following year and to the Executive Council in 2013. Doug has lectured widely and  published extensively on ambulatory surgery. He co-authored the Oxford Handbook of Day Case Surgery,  and has contributed to several standard surgical textbooks on day surgery. His main interest relates to patient safety and the design of ambulatory pathways.

In addition to his work in ambulatory surgery, Doug is Professor and  Director of Clinical Studies for the new independent University of Buckingham Medical School, with the first intake of students in January 2015. 

Professor Beverly Philip - Immediate Past President & Editor of Newsletter

Beverly Khnie Philip, M.D. is Professor of Anaesthesia at Harvard University and Founding Director of the Day Surgery Unit at the Brigham and Women's Hospital in Boston, MA.
She received her undergraduate degree from Queens College, City University of New York, NY, the MD degree from Upstate Medical Center, State University of New York, Syracuse, NY, and completed anesthesia residency and research fellowship at the Peter Bent Brigham Hospital, Harvard Medical School, Boston, MA.
Dr. Philip has spoken widely, nationally and internationally. She has published numerous research papers, review articles and book chapters on various aspects of ambulatory anesthesia practice, and she is active in research in ambulatory anesthesia. Dr. Philip’s areas of interest are the pharmacology of inhaled and intravenous agents, and the specialized administrative approaches to ambulatory surgery, including patient-focused, cost-effective care and facilitated ‘fast-track’ recovery.
Dr. Philip is Vice President for Scientific Affairs of the American Society of Anesthesiologists (ASA), with responsibility for all educational and scientific activities of the 50,000+ member organization. She has also served as the Chair of the ASA Quality Management and Departmental Administration Committee, Chair of the ASA Ambulatory Surgical Care Committee and was Chair of the ASA Annual Meeting for 2009. Dr. Philip is a founding member and Past President of the Society for Ambulatory Anesthesia. She has served as the Chair of the Joint Commission’s Ambulatory Health Care Professional and Technical Advisory Committee, and is on the Board of Directors and Standards Committee of the Accreditation Association for Ambulatory Health Care; she also has served on the CMS Advisory Panel on Ambulatory Payment Classification Groups. She is Editor-in-Chief of the IAAS international journal “Ambulatory Surgery”.

Dr. Gamal-Eldin Mohamed - Past President

Dr Gamal Eldin Mohamed  qualified from Semmelweis University for Medical Sciences, Budapest in 1977. He became a consultant in general surgery in 1982, after which he was appointed as an Assistant Professor of general surgery in the former Post- gradute Medical University in 1985. Early in 1985 he began his activities in diagnostic laparoscopy in surgery, and he became a pioneer of this field in Hungary. In 1989 he was qualified as a gastroenterologist at the same University. Between 1989 – 1993 and as a pioneer he continuously worked to develop surgical laparoscopy, guided more than 25 postgraduate hands-on animal experiments and theoretical lectures to teach surgical laparoscopy and guided a research work with which he gained the  PhD degree from the Hungarian Academy of Sciences. Following this he became an Associate Professor of surgery.

He has continuously been involved in research work in day surgery and laparoscopic surgery. He has published 110 peer-reviewed papers, has given  more than 250 lectures nationally and internationally, has writen 17 book chapters  and performed 13 laparoscopic teaching videos. He established and built up the first day surgery in Budaörs, Hungary. He is a lecturer of day surgery in three universities for graduate and resident students in: the Semmelweis University, Budapest, The Debrecen University and the Corvinus University, Budapest.

Dr Gamal Mohamed Eldin started his day surgery activities in Hungary early in 1997, when he established the Hungarian Association for Ambulatory Surgery (HAAS). As a founder of this Association, he disseminated the idea of day surgery to various medical fields in Hungary, and as a result, day surgery became a popular way of treatment. He also guided the HAAS to be a member of the IAAS in 2005. He initiated the development of day surgery within the frame of the network between the countries of Middle–East Europe. He was the Organizer and President of the IAAS 10th International Congress For Ambulatory Surgery, held in Budapest. Since 2009, he is an officer of the IAAS Executive Committee and now is President for the period 2015–2017.

Dr Jan Eshuis - Honorary Secretary (ex officio)

Dr Jan H Eshuis, MD, is a staff anesthesiologist and Director of the Day Surgery Unit in the Academic Medical Center (AMC) at the University of Amsterdam. Both his medical education (1981) as his training as an anesthesiologist (1986) he received in the University of Amsterdam. Special interests are ambulatory anesthesia and regional anesthesia. Also History of anesthesia.

In 1994 he was asked to participate in the preparation of a new Day Care Centre in the University Hospital AMC, as member of 3 committees. In 1997 he was appointed Medical Director AMC Day Care Centre, charged with building and organization of this new hospital-bound Day Care Centre. This opened and started 01-01-2001. He became experienced with successfully managing a 36-bed ASC with 6 OR, with regard to personnel (32 FTE), medical, material and organizational aspects. This unit is on a national scale a “Best Practice ASC”. Both in opening up new horizons in ambulatory surgery as well as in education of nursing personnel the Day Care Centre became an example for many colleagues, physicians and nurses both national and international.

In 1994 he joined the board of the Dutch Society for Day surgery and Short Stay (NVDK); from 1997 through 2006 he served as the Secretary and as President of the annual national congresses. In  2007 he was the President of the Scientific Committee and Secretary General of the 7th IAAS International Congress on Ambulatory, held in Amsterdam. In 2007 he was appointed Honorary member of the Dutch national society NVDK. From 2000-2009 he was Dutch representative in the General Assembly IAAS and from 2009 to present elected as member of the Executive Committee IAAS. Since 2011 he serves as the Secretary of the Executive Committee and General Assembly IAAS.

Educational activities
Presentations in many national and international Congresses with regard to Day Surgery; Lecturer Courses Education Anesthesiologists, Nurses, University of Amsterdam and Free University Amsterdam as well as in the Committee for European Education in Anesthesiology CEEA. Author Chapters on Day Care Anesthesia in two Dutch Textbooks on Anesthesia, most recent in 2013. 2012, 2013, 2014 Teach the Teachers IAAS course Budapest, Timisoara and Slovakia for Eastern European colleagues.

Luc Van Outryve - Treasurer (ex officio)

Dr. Luc Van Outryve, MD, qualified from the Medical Faculty of the State University of Ghent ( Belgium) and completed his formation to general surgery in 1982 at the Algemene Kliniek H. Familie in Ghent and the St. Antoniusziekenhuis in Utrecht (The Netherlands).
From 1989 he is designed as the Chief of the Surgical Department of the Volkskliniek in Ghent; then started his interest for the ambulatory surgery concept.

He joined the Belgian Association of Ambulatory Surgery (BAAS) of Dr. Claude Delathouwer and became president of this association in 2004. Since then he organised the biennial Belgian Congress of Ambulatory Surgery and he represented the BAAS in the Belgian Surgical Week, organised every year by the Royal Belgian Society of Surgery (RBSS).

In 2004, when in Ghent 3 hospitals merged, he became the Chief of the ambulatory surgery department of the new hospital, AZ. St. Lucas-Volkskliniek. He was the steering force in the development of this ambulatory surgery centre. He was invited speaker at several occasions in different hospitals in Belgium when the concept of ambulatory surgery was the theme.
From the beginning, he was present at the IAAS Congresses and in 2001 he became member of the IAAS General Assembly as a representative for Belgium.

In 2011 he was elected as a member of the Executive Committee and he became the Treasurer of the IAAS. Since 2014, April he retired as an active surgeon and he became honorary President of the Belgian Association of Ambulatory Surgery.

Dr Arnaldo Valedon

Arnaldo Valedon, MD is an anesthesiologist practicing day surgery and perioperative management for eighteen years. He received his education in the Unites States, (U.S.) starting with a bachelors degree in science at Cornell University in 1987 and followed by a doctorate degree in medicine at the University of Pennsylvania in 1991. He continued his training in anesthesiology and critical care medicine at the University of Pennsylvania, with sub-specialty training in pediatric anesthesia at the Children’s Hospital of Philadelphia.

After finishing his training, Dr. Valedon has provided outpatient anesthesia services almost exclusively. He has served as medical director of two outpatient surgery centers, and as President of Summit Anesthesia and Perioperative Management since 1998. This practice was merged into First Colonies Anesthesia Associates in 2004, for which he serves as a managing partner and chief of the ambulatory surgery division.
He is a board member of the Ambulatory Surgery Center Association (ASCA) and the Accreditation Association for Ambulatory Healthcare (AAAHC) representing ASCA. He is also a board member of AAAHC-International (Acreditas Global), and a member of the General Assembly and Executive Committee for the International Association for Ambulatory Surgery (IAAS).

Dr. Valedon has been involved with the American Society of Anesthesiologists (ASA) as part of the ambulatory surgery committee, as well as the Society for Ambulatory Anesthesia (SAMBA) as a board member, chair of the Latin-American relations committee, and co-chair of the committee on office-based anesthesia. He has been an invited speaker at multiple conferences nationally and abroad.
Dr. Valedon is the president and CEO of Knightstone Consulting Group and has been actively consulting on day surgery and perioperative management in the U.S., Central and South America, India, and the United Kingdom since 2000. 

Dr Carlos Magalhães - President Elect

I am currently the President of the Portuguese Ambulatory Association (Associação Portuguesa de Cirurgia Ambulatória – APCA) since 2010 and my general work in surgery is related with Ambulatory Surgery, since 2005.

I worked from 2005 to 2010 as General Surgeon, in the Ambulatory Surgery Unit of Hospital Geral de Santo António - Porto.

Since 2011 I was invited to be the Director of the Unit of General Ambulatory Surgery of Centro Integrado de Cirurgia de Ambulatório (CICA), located in Centro Hospitalar do Porto.
CICA is one of the biggest ASU in Portugal, totally autonomous, were we perform all the ambulatory surgical acivity of Centro Hospitalar do Porto. In 2014 it were made about 15.000 surgical interventions with a medium of 300/week with general anestesia.
I am the responsible for the Unit of General Ambulatory Surgery, that has 5 Surgeons working mainly in the field of Ambulatory Surgery. We perform about 80 interventions/week with general and local anestesia, including neck sugery, abdominal wall (including Laparoscopic aproach), laparoscopic colecisthectomy and antireflux laparoscopic surgery.

I participated, since 2010, in several activities of IAAS including International Congress, Meetings and General Assemblies.

Hanne Føns

I have been working with day surgery for the last 10 years. Since 2013 as Nursing Head of Unit, Department of Anesthesiology, Nordsjællands Hospital.
I´ve been a member of the Danish board since 2009 and GA Officer in IAAS, representing Denmark, since 2012.
From 2009 until this summer, 2016, I was responsible for finance in our national day surgery organisation - DSDK.
Since our last annual meeting I have become chairman of DSDK.

I’m very interested in digital solutions and have a master’s degree in health informatics.




Mariann Aaland

Head of Day surgery unit Akershus University Hospital , Oslo, Norway.
Intensive care nurse since 1994, worked with day surgery since 1996.
Leader of pre. post. operative section from 1998 and head of the center since 2012.
In-between also studied leadership management.
Our Daysurgery unit is the largest in Norway. We have 12 operating theatres and about 100 people, specialized nurses-, surgery-, anesthesiology-, intensive care- nurses, health secretaries and cleaning personnel working in the unit. We do about 9000 cases a year under general anesthetic.
Member of the Norwegian Association of Ambulatory Surgery (NORDAF), since 2014 and from the same year also member of General Assembly in the International Association of Ambulatory Surgery.
Leader of NORDAF since January -17.


Professor Marc Coppens

Dr. Coppens is Professor in Anaesthesia at Ghent University Hospital and is the Head of the Ambulatory Surgery Unit of the University Hospital Ghent, and Vice-President of the BAAS, Belgian Association of Ambulatory Surgery.





Dr Xavier Falieres

Xavier Falieres was born in France. He studied general medicine and emergency medicine in France, anesthesiology in Belgium. He lives since 1993 in The Netherlands where he is working as peri-operative anesthesiologist since 2002 at the Albert Schweitzer Hospital, a major teaching Hospital near Rotterdam. He is now medical director of the ambulatory care in his hospital and president of the Dutch Society for Ambulatory Care.

He is for 10 years regularly present in Myanmar to teach and to give workshops. He is lecturer at the University of Medicine 1 in Yangon.

His major interests in anesthesiology are opioid free anesthesia, loco-regional anesthesia, thorax surgery, obstetrics, anesthesia in geriatric patient, Orthopedic surgery, day case surgery.


Dr Luis Hidalgo Grau

MD in the University of Barcelona in 1980. PhD in the Autonomous University of Barcelona in 1993. General and Digestive Surgery Specialist. Residence in the Hospital de la Santa Creu i Sant Pau. Autonomous University of Barcelona (Barcelona, Spain).

Master in Hospital Management in 2001 (University of Barcelona). Member of the Department of General and Digestive Surgery in Hospital de Mataró (Barcelona, Spain). Colorectal Surgery Unit Coordinator. DSU Coordinator of Hospital de Mataró (Barcelona, Spain).

President of ASECMA (Spanish Society for Ambulatory Surgery). Member of the General Assembly of the IAAS. Member of the Executive Committee of the Catalan Society of Surgery.



Dr Vicente Vieira

Anesthesiologist in the Anesthesia and Pain Management Department in Braga University Hospital.
Ambulatory Surgery Unit Director in Braga University Hospital.
President of the Ambulatory Surgery Section in the Portuguese Society of Anesthesiologists (SPA).
Board Member in the Portuguese Society of Ambulatory Surgery (APCA).
Portuguese Representative in the General Assembly of the International Association of Ambulatory Surgery (IAAS).




Dr Ian Jackson - Webmaster (ex officio)

Dr Jackson qualified from Aberdeen Medical School in 1981. He spent a period in Obstetrics and Paediatrics prior to pursuing a career in Anaesthesia. During his General Professional Training he developed a keen interest in the management of postoperative pain and in the use of regional anaesthesia in particular. He is a life member of the European Society of Regional Anaesthesia.

He became a Consultant in York in 1989 and was one of the founding members of the York Acute Pain Service which was one of the first in the UK.

Dr Jackson became responsible for the development of Day Surgery in York in 1991 and has spent several years as Clinical Director for Anaesthesia, ICU and Theatres. He led the redesign of short stay surgery in York creating a 6 theatre day unit that includes a 22 trolley overnight stay area. He has now moved into a management role as a Chief Clinical Information Officer and works full time supporting the development of safer patient care through the use of technology.
He was elected to the Council of the British Association of Day Surgery in 1994 and has served as the Honorary Treasurer, Editor of the Journal and the President. He introduced and ran the BADS website for several years.
Since joining the General Assembly of the International Association for Ambulatory Surgery he has redeveloped the website ( and helped establish the journal Ambulatory Surgery as a free access online resource (
His varied publications include articles on acute pain, anaesthetic equipment and safety and an anaesthetic textbook Companion to Clinical Anaesthesia Exams. In 1997 Bailliere Tindall published a textbook Day Surgery Principles & Nursing Practice that he co-authoured with his colleague Heather Cahill.
He is co-editor of a textbook Day Case Surgery published on 2012 by Oxford Medical Publications and has authored many chapters on day surgery including in the latest edition of Bailey & Love's Short Practice of Surgery. 

Professor Zhenzhong ZHANG

Honorary Director-General,
China National Health Development Research Center, NHFPC, China   
Vice Chair,Secretary-General, China Health Economics Association
President, China Ambulatory Surgery Alliance 
Consultant for Public Health, Ministry of Civil Affairs, China
In recent years, Prof. Zhang Zhenzhong has been committed to China’s health development strategy, research on health policy and health management, national health resources allocation, medical insurance system, and medical and health services.
Professor Zhang was the top designer and principle technical adviser of the first MFA project in China, namely, the Medical Financial Assistance for the Extremely Poor People in the Health Ⅷ Project funded by the World Bank. 
And he was also the principle investigator of the “Standardization of National Fee Schedule for Medical Procedures and Services, 2001 and 2012 version.
He was also the team leader of “Regulation on pricing and payment of C-DRG”. 
He have created and led the team of China Ambulatory Surgery Alliance, specializing in technology research, management research, health policy research, academic communication and related training in the field of day surgery. He have made great efforts in promoting the rapid development of China day surgery from the spontaneous stage to a organized, targeted, and standardized development stage, which providing the policy reference for Chinese government to develop day surgery. In 2015, it was officially included in the key parts of national medical reform.
In recent years, professor Zhang has been working as the country coordinator in several cross-country research projects on health development and health care reform funded by international agencies, such as EU commission, the World Bank, DFID, WHO, etc, involving leading health research institutions and experts from other countries. He was also the top designer and consultant for many  poverty relief projects in China.
He was invited to write the health-related part in the “2005 China Human Development Report” which was co-launched by the Chinese MOH and UNDP. He wrote a chapter on “Healthcare for the China in the Ten Years after Asian Economic Crisis” funded by the China Development Foundation. He also wrote a chapter on “Healthcare Reforms after China’s Opening Up and Reform” and “ Welfare Society in China”. 

Dr Mark Skues - Editor in Chief (ex officio)

Mark graduated from Nottingham University Medical School in 1980, and after house jobs in Stoke-on-Trent, Nottingham and training in cardiorespiratory medicine in Mansfield, embarked on a career in Anaesthesia, with posts in Nottingham, Bristol, Hamilton New Zealand, and Sheffield. He was appointed Consultant in Anaesthesia and Intensive Therapy in 1992 in Chester. A subsequent competitive interview in 1999 saw him appointed as Director of Day Surgery in the same trust that coincided with the development of a new stand-alone five theatre Day Surgery Centre that opened in 2001. He was appointed to Council of the British Association of Day Surgery in 2009, was the Editor of the Journal of One Day Surgery from 2009 to 2011, President Elect from 2010 to 2012, and President of the Association between 2012 and 2014. Mark was appointed a member and subsequently Chair of the Scientific Subcommittee for Ambulatory Anaesthesia with the European Society of Anaesthesiology from 2014 to 2018. He was appointed as an Editor of the Journal ‘Ambulatory Surgery’ in 2015.

Dr Skues is an author of over 100 peer reviewed papers, including three book chapters on Ambulatory Surgery, and has lectured nationally and internationally on a variety of topics.