Urbain Mees

Urbain Mees

Cardiothoracic Surgeon

Dr. Urbain Mees (born in Wilrijk in 1955) graduated from Universiteit Antwerpen as a physician in 1981. He started his General Surgery training at Universiteit Antwerpen and then trained as a cardiothoracic surgeon at Katholieke Universiteit Leuven.

During his training he was involved in a research programme at the Department of Physiology with Dr. A. Bogaert under the supervision of Prof. D. Brutsaert (Universiteit Antwerpen). In 1990 he completed an "Artificial Heart Programme" fellowship under the supervision of Prof. Vasku (University of Brno, Czech Republic). He is a recognised surgeon with a subspecialty in cardiothoracic surgery since 1987.

Clinical appointments

October ‘87 - July ‘91: Cardiothoracic surgery executive at Universitair Ziekenhuis Leuven
August ‘91 – March ‘92: Cardiothoracic surgery executive at the European Heart Centre in Brussels
April ‘92  -  present: Founder of the cardiothoracic surgery department at the former Virga Jesseziekenhuis, currently Jessa Ziekenhuis Hasselt


Dr. Urbain Mees is:

  • Member of the Royal Belgian Society for Surgery
  • Member of the International Society for Cardiovascular Surgery (ISCVS)
  • Member of the Belgian Association for Cardiothoracic Surgery (BACTS)
  • Member of the Society for Thoracic Surgeons (STS)
  • Member of the International Society for Minimal Invasive Cardiac Surgery (ISMICS)
  • Fellow of the European Board of Thoracic and Cardiovascular Surgeons (FECTS)

Papers in Journals

  • Van Bogaert A, De Schepper J, Mees U. Electrocardiographic changes during stimulation of the hypothalamus in the dog. Arch Mal Coeur Vaiss. 1979 Jul;72(7): 721-9
  • Van Bogaert A, Mees U, De Schepper J. Effect of stimulation of the hypothalamic paraventricular nucleus on the electrial and contractile characteristics of the myocardium in dogs. Arch Mal Coeur Vaiss. 1980 Oct; 73(10): 1179-84
  • Van Bogaert A, Mees U, De Schepper J. Effect of the hypothalamus on membrane permeability to ionic calcium currents. Arch Mal Coeur Vaiss. 1981 Apr; 74(4): 437-42
  • Mees U, Eyskens E, Van der Stighelen Y. Formation of a phytobezoar following surgery of the stomach.  Review of the literature. Acta Chir Belg. 1984 Jul-Aug; 84(4): 221-5
  • Nevelsteen A, Mees U, Deleersnijder J, Suy R. Obturator bypass: a sixteen year experience with 55 cases. Ann Vasc Surg. 1987 Dec; 1(5): 558-63
  • Daenens K, Vandekerkhof J, Mees U. Combined revascularization of coronary and femoral arteries, using the ascending aorta as inflow source. Acta Chir Belg. 1997 Jan-Feb; 97(1): 47-9
  • Vandergoten P, Dendale P, Geukens R, Benit E, Vanbockrijk M, Mees U, Hendrikx M. Right auricular fibroelastoma and paradoxial embolic stroke. Acta Cardiol. 1999 Feb; 54(1): 49-50
  • Hendrikx M, Jiang H, Gutermann H, Toelsie J, Renard D, Briers A, Pauwels JL, Mees U.   Release of cardiac troponin I in antegrade crystalloid versus cold blood cardioplegia. J Thorac Cardiovasc Surg. 1999 Sep; 118(3): 452-9
  • Hendrikx M, Rega F, Jamaer L, Valkenborgh T, Gutermann H, Mees U. Na(+)H(+)-exchange inhibition and aprotinin administration: promising tools for myocardial protection during minimally invasive CABG. Eur J Cardiothorac Sur. 2001 May; 19(5): 633-9
  • Hendrikx M, Mees U, Hill AC; Egbert BT., Evaluation of a novel synthetic sealant for inhibition of cardiac adhesions and clinical experience cardiac surgery procedures. Heart Surg Forum. 2001;4(3): 204-10
  • Hendrikx M, Hensen K, Clijsters C, Jongen H, Bijnens E, Ingels M, Jacobs A, Geukens R, Dendale P, Vijgen J, Dilling D, Steels P, Mees U, Rummens J-L.  A randomized controlled clinical trial of autologous bone-marrow transplantation by direct intramyocardial injection for myocardial regeneration Submitted.
  • Vandergoten P, Geukens R, Benit E, Vanbockrijck M, Mees U, Hendrikx M,  Right auricular fibroelastoma and paradoxal embolic stroke. Acta Cardio. 1999;54:49-50.
  • Vandergoten P, Geukens R, Mees U, Hendrikx M, Dendale P.  De partiële ventriculectomie of Batista-procedure. Tijdschrift voor Cardiologie 1999;11:153-155
  • Dubois J, Jamaer L, Mees U, Pauwels J, Briers F, Lehaen J, Hendrikx M. Ex vivo evaluation of a new neonatal/infant oxygenator: comparison of the Terumo CAPIOX Baby RX with Dideco Lilliput 1 and Polystan Safe Micro in the piglet model. Perfusion. 2004;19(5):315-21.
  • De Raet J, Mees U, Vandekerkhof J, Hendrikx M. Penetrating pediatric cardiac trauma caused by fall on a pencil with normal echocardiography. Interactive Cardiovascular and Thoracic Surgery 2004;3:634-636
  • Lycops A, Wever C, Vandekerkhof J, Mees U, Hendrikx M. Midterm follow-up after off-pump versus on-pump coronary artery bypass grafting. Results from a case-matched study. Acta Cardiol. 2005 Jun;60(3):311-7.
  • Hendrikx M, Hensen K, Clijsters C, Jongen H, Koninckx R, Bijnens E, Ingels M, Jacobs A, Geukens R, Dendale P, Vijgen J, Dilling D, Steels P, Mees U, Rummens J-L. Recovery of Regional but not Global Conractile Function by the Direct Intramyocardial AZuitologus Bone Marrow Transplantation: Results from a Ra,ndomized Controlled Clinical Trial. Circulation 2006;114:I-101-107
  • Fierens J, Mees U, Vanbockrijck M, Hendrikx M. Amyloidoma of the chest wall: a rare entity. Interact Cardiovasc Thorac Surg. 2008 Dec;7(6):1194-5
  • Masi S, Mees U, Vandekerkhof J, Hendrikx M. Acute thrombosis of an abdominal aortic aneurysm following intra-aortic balloon pumping.Interact Cardiovasc Thorac Surg. 2007 Oct;6(5):658-60. Epub 2007 Jun 26
  • Yazar O, Achten R, Geukens R, Mees U, Hendrikx M. Heart valve lymphoma presenting an acute coronary syndrome. J Heart Valve Disease. 2008;17:130-132
  • Koninckx R, Hensen K, Daniëls A, Moreels M, Lambrichts I, Jongen H, Clijsters C, Mees U, Steels P, Hendrikx M, Rummens JL. Human bone marrow stem cells co-cultured with neonatal rat cardiomyocytes display limited cardiomyogenic plasticity. Cytotherapy. 2009;11(6):778-92
  • Debonnaire G, Mees U, Hendrikx M. Coronaire bypasschirurgie voor obstructief coronair lijden bij een patiënt met dextrocardie en situs inversus. Case report en literatuuroverzicht. Tijdschr Cardiol  2009;21(6):352-65 5 (CABG for obstructive coronary disease in a patient with dextrocardia and situs inversus)
  • Koninckx R, Daniëls A, Windmolders S, Carlotti F, Mees U, Steels P, Rummens JL, Hendrikx M, Hensen K. Mesenchymal stem cells or cardiac progenitors for cardiac repair? A comparative study. Cell Mol Life Sci. 2011 Jun;68(12):2141-56.
  • Koninckx R, Daniëls A, Windmolders S, Mees U, Macianskiene R, Mubagwa K, Steels P, Jamaer L, Dubois J, Robic B, Hendrikx M, Rummens JL, Hensen K. The cardiac atrial appendage stem cell: a new and promising candidate for myocardial repair. Cardiovasc Res. 2012 Dec 19. Epub ahead of print.doi:10.1093/cvr/cvs427
  • Van Duffel D, Van Geldert R, Starinieri P, Pauwels JL, Natukunda A, Rakhmawati TW, Chirehwa MT, Orwa J, Thys H, Deboosere P, Robic B, Mees U, Hendrikx M. Elective reconstruction of the ascending aorta for aneurysmal disease restores normal life expectancy. An analysis of risk factors for early and late mortality. Acta Cardiologica 368(4), 2013, 349-53
  • Deleus E, Gregoir T, Robic B, Mees U, Dierickx C, De Wachter G, Hendrikx M. Intrathoracic migration of a Steinman pin after glenohumeral fixation. The journey continues. Open journal of thoracic surgery. 3(3), 2013,  76-79
  • Fanton Y, Robic B, Daniëls A, Windmolders S, Willems L, Jamaer L, Dubois J, Bijnens E,,Heuts N, Notelaers K, Paesen R, Ameloot M, Mees U, Rummens JL, Hendrkx M, Hensen K, Koninckx R. Cardiac atrial appendage stem cells preserve cardiac function in a minipig acute myocardial infarction model. Circulation 128, 2013,A13580
  • Nauwelaers S, Mees U, Hendrikx M. Radiotherapy-induced Mitral Incompetence. Acta Chir Belg 2013,113, 373-4
  • Dilling-Boer D, Benit E, Herbots  L, Mees U, Hendrikx M. Late Organised Left Atrial Thrombus on a Left Appendage Closure Device. J Cardiovasc Electrophysiology 25,2014, 445-6
  • Robic B, Verwerft J, Yilmaz A, Mees U, Starinieri P, Hendrkx M. Congenital tricuspid regurgitation due to aberrant chorda to the septal leaflet. Experimental and Clinical Cardiology 20(8), 2014, 3016
  • De Bruyn H, Gelders F, Gregoir T, Waelbers N, Starinieri P, Pauwels JL, Lehaen J, Robic B, Yilmaz A, Mees U, Hendrikx M. Myocardial protection during cardiac surgery: warm blood versus crystalloid cardioplegia. World Journal of Cardiovascular Diseases 4, 2014, 422-31


  • J.L. Rummens, V. Peeters, M. Hendrikx, U. Mees, P. Steels, F. Vandenabeele, C. Clijsters. 
    Differentiation of human bone marrow cells into cardiomyocyte-like cells : comparison of different induction protocols. 
    The Hematology Journal, 2004, 5 (S2), S44.
  • Hensen K, Clijsters C, Jongen H, Peeters V, Hendrikx M, Mees U, Steels P, Vandenabeele F, Rummens JL. 
    Identification of cultured human bone-marrow cells differentiated into cardiomyocyte-like cells.
    Journal of Biological Regulators & Homeostatic Agents, 2004, 18 (2), 234.
  • Koninckx R, Hensen K, Marinkina O, Lambrichts I, Jongen H, Mees U, Steels P, Hendrkx M, Rummens J-L.
    No Evidence of Transdifferentiation of Human Mesenchymal or Hematopoietic Stemm Cells into Cardiomyocytes following Co-culture with Neonatal Rat Cardiomyocytes.
    Circulation Research 2007;101:e53-e77

Chapters in books

  • Mees U,  Sergeant P,  Daenen W,  Flameng W
    Succes and failure of the Hemopump: a critical analysis. In: Temporary Cardiac Assist with an Axial Pump System. Edited by W. Flameng
    Steinkopff Verlag Darmstadt
  • Johan Van der Bracht, ea  “Openhartig”
    Chirurgische behandeling van voorkamerfibrillatie.  U.Mees  10/2004

International Presentations

  • 12/89 First Cardiac Surgery Symposium. Brussels (Belgium) - “The Hemopump: facts or fiction”
  • 12/86 Belgian German society for vascular surgery Heidelberg (Germany)  -  “Obturator bypass: a sixteen years experience with 55 cases”
  • 04/90 Catharina Hospital Eindhoven (Netherlands) - “Hemopump: axial flow pump”
  • 03/91 Temporary Cardiac Assist with an Axial Flow Pump System. Brussels (Belgium) -  “Succes and failure of the Hemopump: a critical analysis”
  • 04/91 Mechanical support meeting Klokkenberg Ziekenhuis. Breda (Netherlands) -  “Clinical experience with the hemopump”
  • 05/91 International meeting of the Society for Artificial Organs .Bologna (Italy) Poster session - “First clinical experience with the Hemopump”
  • 05/91 Cardiac Assist meeting of the University of Brno (Czech Republic) - “Hemopump as a bridge to transplant”
  • 11/91 2nd Meeting of the International society of Mechanical Support in San Francisco (USA) - “Abiomed BVS 5000: The Belgian Experience”
  • 09/99 24th World Congress of the Intenational Society for Cardiovascular Surgery in Melbourne (Australia) -  “A Comparison  of Cardiac Troponin release in Antegrade Crystalloid versus Intermittent Antergrade Cold Blood Cardioplegia”