Job:

• 1992-1993 Dept. of Cardiology, Academic Medical Center, Amsterdam, NL
• 1996-1997 Dept. of  Internal Medicine. Kennemer Gasthuis, Elisabeth, Haarlem, NL
• 1998-1999 Dept. of  Internal Medicine. Kennemer Gasthuis, Elisabeth, Haarlem, NL
• 1999-2002   Dept. of  Cardiology, Academic Medical Centre, Amsterdam, NL
• Oct. 2002  Certified cardiologist in The Netherlands
• Oct. 2002 Cardiologist in Switzerland, Chef de clinique, Cardiology Centre, University Hospital Geneva, Switzerland (head: prof. U. Sigwart)
• Nov. 2003 Grants from: “Fondation Suisse de Cardiologie” and “Fonds de Service”. The effect of percuteneous transluminal alcohol septal ablation on contractile function, mechanical synchrony and neurohormonal activation in patients with hypertrophic obstructive cardiomyopathy. (principle investigator: GA Somsen)
• 2003 – 2013 Cardiologist and Program Director. Department of Cardiology, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands.
• 2005 – 2006 Treasurer Working Group: MRI/MSCT en Nuclear Cardiology, Dutch Society of Cardiology (NVVC)
• 2006 – Founding partner of Cardiology Centers of the Netherlands; chain of private cardiology clinics.
• 2007 – 2013 Member of Concilium Cardiologicum (Board of Program Directors)
• 2010 – 2016 Member of Working Group on Quality Assurance, NVVC
• 2014 – 2018 Head of Cardiology Dept. MC Zuiderzee, Lelystad, The Netherlands
• 2011 – Fellow of The American College of Cardiology
• 2018 – Registered cardiologist UK

References / professional papers / memberships

• Member of European Societies of Cardiology
• Dutch, English and French, German: reasonable knowledge.
• Regularly undergoes professional training

1. GA Somsen, L Cozijnsen, HJA Sallé, KS Liem. Transmural myocardial infarction and near normal coronary arteries. Neth. J. Cardiol 1992;5:40-43.
2. GA Somsen, KS Liem. Coronary Artery-Left Ventricular Fistulas Probably due to Transmural Myocardial Infarction; a Case Report. Cardiologie 1994;2:65-67.
3. GA Somsen, DR Düren. Hartfalen bij een Ghanese Vrouw ten Gevolge van Endomyocard Fibrose. Nederlands Tijdschrift voor Geneeskunde 1995;139(34): 1746-1748.
4. GA Somsen, JJJ Borm, PAR de Milliano, B van Vlies, EA Dubois, EA van Royen. Quantitation of Myocardial Iodine-123 MIBG Uptake in SPET Studies; a New Approach Using the Left Ventricular Cavity and a Blood Sample as a Reference. Eur. J. Nucl. Med. 1995;22(10):1149-1154.
5. GA Somsen, EA Dubois, K Brandsma, J de Jong, PA van der Wouw, HD Batink, EA van Royen, KI Lie, PA van Zwieten. Cardiac Sympathetic Neuronal Function in Left Ventricular Volume and Pressure Overload. Cardiovasc. Res. 1996;31:132-138.
6. GA Somsen, B van Vlies, PAR de Milliano, JJJ Borm, EA van Royen. Increased Myocardial [123I]-metaiodobenzylguanidine Uptake After Enalapril Treatment in Patients With Chronic Heart Failure. Heart 1996;76:218-222.
7. EA Dubois, GA Somsen, JC van den Bos, AGM Janssen, GJ Boer, HD Batink, EA van Royen, M Pfaffendorf, PA van Zwieten. Pharmacologic Characterization in Vitro and in Vivo of Iodine 123-labeled Derivatives of the Beta-adrenoceptor Antagonist CGP 12177, Designed for the Imaging of Cardiac Beta-receptors. Nucl. Cardiol. 1996;3:242-252.
8. GA Somsen, JJJ Borm, EA Dubois, MB Schook, EE van der Wall, EA van Royen. Cardiac MIBG uptake affected by a varying uptake in reference regions: implications for interpretation of clinical studies. Nuclear Medicine Communications 1996;17:872-876.
9. EA Dubois, KL Kam, GA Somsen, GJ Boer, K de Bruin, HD Batink, M Pfaffendorf, EA van Royen, PA van Zwieten. Cardiac sympathetic activation in animals with diabetes mellitus and/or hypertension using three different models. J. Nucl Med. 1996 Aug;23(8):901-8.
10. EA Dubois, JC van den Bos, T Doornbos, PAPM van Dooremalen, GA Somsen, AGM Janssen, GJ Boer, HD Batink, M Pfaffendorf, EA van Royen, PA van Zwieten. Synthesis, in vitro and in vivo characteristics of an iodinated analogue of the ß-adrenoceptor antagonist carazolol. Med. Chemistry 1996;39:3256-3262.
11. GA Somsen, EE van der Wall, B van Vlies, JJ Borm, EA van Royen. Neuronal dysfunction in heart failure assessed by cardiac 123-iodine metaiodobenzylguanidine scintigraphy. Int J Card Imaging 1996;12(4):305-10.
12. JC van den Bos, PAPM van Doorenmalen, EA Dubois, GA Somsen, JAJM Vekemans, AGM Janssen, GJ Boer, M Pfaffendorf, EA van Royen, PA van Zwieten. Development of radioligands for the imaging of cardiac ß-adrenoceptors using SPECT; Part I: Asymmetric synthesis and structural characterisation of five new iodine-containing ß-adrenoceptor antagonist derivatives. Med. Biol. 1997;24(1):1-7.
13. EA Dubois, GA Somsen, JC van den Bos, AGM Janssen, GJ Boer, HD Batink, M Pfaffendorf, EA van Royen, PA van Zwieten. Development of radioligands for the imaging of cardiac ß-adrenoceptors using SPECT; Part II: Parmacological characterisation in vitro and in vivo of new 123-iodine labelled ß-adrenoceptor antagonists. Med. Biol. 1997;24(1):9-13.
14. GA Somsen, BM Szabo, DJ van Veldhuisen, PAR de Milliano, CA de Groot, KI Lie. Comparison between iodine 123 metaiodobenzylguanidine scintigraphy and heart rate variability for the assessment of cardiac sympathetic activity in mild to moderate heart failure. Am Heart J 1997 Sep;134(3):456-8.
15. M Meuwissen, GA Somsen, JJ Piek. Neovascularity related to mural thrombus in endomyocardial fibrosis. Int J Card Imaging 1999;15(3):205-207.
16. GA Somsen, NH Schut. Acute renal failure due to self-medication. Neth J Med 1998 Jul;53(1):45-46.
17. E Ronner, E Boersma, GJ Laarman, GA Somsen, RA Harrington, JW Deckers, EJ Topol, RM Califf, ML Simoons. Early Angioplasty in acute coronary syndromes without persistent ST-elevation improves outcome, but increases need for 6 month repeat revascularization. An analysis of the PURSUIT-trial. J Am Coll Cardiol. 2002 june 39(12);1924-1929.
18. HJ Verberne, Marcel GW, Dijkgraaf, GA Somsen, BLF van Eck-Smit. Stress related variations in left ventricular function as assessed with gated myocardial perfusion SPECT. J Nucl Cardiol. 2003;10:456-463.
19. GA Somsen, E Camenzind, A Righetti. Right ventricular ischemia due to right coronary artery stenosis. Heart 2004; 90(6):696
20. GA Somsen, HJ Verberne, E Fleury, A Righetti. Normal values and within-subject variability of cardiac 123-iodine-Metaiodobenzylguanidine scintigraphy in healthy individuals; implications for clinical studies. J Nucl Cardiol 2004;11(2):126-133.
21. C Dornier, GA Somsen, MK Ivancevic, A Righetti, J-P Vallée. Comparison between tagging MRI and standard cine MRI for evaluation of left ventricular ejection fraction European Journal of Radiology 2004;14(8)1348-1352.
22. GA Somsen A Righetti and E Camenzind. Vulnerability of myocardial collateral perfusion: the impact of episodic hypertension European Journal of Internal Medicine 2004;15:387-389.
23. HJ Verberne, C Feenstra, WM de Jong, GA Somsen, BLF van Eck-Smit, E Busemann-Sokole. Influence of collimator choice and simulated clinical conditions on 123I-MIBG heart/mediastinum ratios: a phantom study. Eur J of Nucl Med and Mol imaging 2005;32:1100-1107.
24. Burri H, Sunthorn H, Somsen GA, Zaza S, Fleury E, Shah D, Righetti A. Optimizing sequential biventricular pacing using radionuclide ventriculography. Heart Rhythm. 2005 sep;2(9):960-5.
25. HJ Verberne, K de Bruin, JBA Habraken, GA Somsen, F Moet, J Booij, BLF van Eck-Smit. No-Carrier-Added versus Carrier-Added 123I-Meta-Iodo-Benzylguanidine for the Assessment of Cardiac Sympathetic Nerve Activity. European Journal of Nuclear Medicine and Molecular Imaging 2006 Jan 20;1-8.
26. GA Somsen, HJ Verberne, H Burri, O Ratib, A Righetti. Ventricular mechanical dyssynchrony and resynchronisation therapy in heart failure, a new indication for Fourier analysis of gated blood-pool radionuclide ventriculography Nucl Med Commun. 2006;27:105-12.
27. K Bogaard, GA Somsen. Wat is de plaats van spironolacton bij de behandeling van hartfalen? Cardiologen Vademecum nr 11, 2005.
28. Probleemgeorienteerd denken in de Cardiologie GK Hovingh, GA Somsen (editors) ISBN 90 58981088. 2006.
29. HJ Verberne, E Fleury, A Righetti, GA Somsen,. The use of perfusion scintigraphy to differentiate proximal right coronary artery stenosis from distal right coronary artery stenosis in patients with inferior left ventricular ischemia. Nucl Med Commun. 2007;28:35-40.
30. HJ Verberne, E Busemann Sokole, AF van Moerkerken, JH Deeterink, G Ensing, MG Stabin, GA Somsen, BL Van Eck-Smit Clinical performance and radiation dosimetry of no-carrier-added vs carrier-added (123)I-metaiodobenzylguanidine (MIBG) for the assessment of cardiac sympathetic nerve activity. Eur J Nucl Med Mol Imaging. 2008 Apr;35(4):798-807.
31. H Burri, H Sunthorn, GA Somsen, E Fleury, C Settler, D Shah, A Righetti. Improvement in cardiac sympathetic nerve activity in responders to resynchronization therapy. 2008 Mar;10(3):374-8.
32. HJ Verberne, LM Brewster, GA Somsen, BL Van Eck-Smit. Prognostic value of myocardial 123I-metaiodobenzylguanidine (MIBG) parameters in patients with heart failure: a systematic review. Eur Heart J. 2008 May;2999):1147-59.
33. N Garnefski, E v Kraaij, MJ Schroevers, GA Somsen. Post-traumatic growth after a myocardial infarction: a matter of personality, psychological health, or cognitive coping? J Clin Psychol Med Settings. 2008 15:270-277.
34. AJ IJsselmuiden, DJ van Wijk, GA Somsen. Retrocardiac mass causing collapse. Neth Heart J. 2008; 16(12):429-430.
35. NK Garnefski, MJ Schroevers, J Aarnink, DJ van der Heijden, SM Es, M van Herpen, GA Somsen. Cognitive coping and goal adjustement after first-time myocardial infarction: relationships with symptoms of depression. 2009 vol 35 (3): 79-86 Behavioral Medicine.
36. L van Heerebeek, GA Somsen, WJ Paulus. The failing diabetic heart: focus on diastolic left ventricular dysfunction. Curr Diab Rep. 2009 Feb;9(1):79-86
37. HJ Verberne, GA Somsen, BL van Eck-Smit. 123I-meta-iodobenzylguanidine in patients with chronic heart failure: technical aspects, conceptual issues, and future prospects. Nucl Med Commun. 2009 jun;30(6):411-4.
38. HJ Verberne, GA Somsen, P Povinec, BL van Eck-Smit, AF Jacobson. Impact of mediastinal, liver and lung (123)I-metaiodobenzylguanidine ((123)I-MIBG) washout on calcutated (123)I-MIBG myocardial washout. Eur J Nucl Med Mol Imaging. 2009 Aug;36(8): 1322-8.
39. HJ Verberne, DJ van der Heijden, BL van Eck-Smit, GA Somsen. Persisting myocardial sympathetic dysfunction in Takotsubo cardiomyopathy. J Nucl Cardiol. 2009 Mar-Apr;16(2):321-4.
40. Flotats A, Carrió I, Agostini D, Le Guludec D, Marcassa C, Schaffers M, Somsen GA, Unlu M, Verberne HJ; EANM Cardiovascular Committee; European Council of Nuclear Cardiology. Proposal for standardization of 123I-metaiodobenzylguanidine (MIBG) cardiac sympathetic imaging by the EANM Cardiovascular Committee and the European Council of Nuclear Cardiology. Eur J Nucl Med Mol Imaging. 2010 Aug;37(9):1802-12.
41. Verberne HJ, Verschure DO, Somsen GA, van Eck-Smit BL, Jacobson AF. Vascular time-activity variation in patients undergoing 123I-MIBG myocardial scintigraphy: implications for quantification of cardiac and mediastinal uptake. Eur J Nucl Med Mol Imaging. 2011 Jun;38(6):1132-8.
42. Derk O. Verschure, Aernout Somsen, Berthe L.F. Van Eck-Smit and Hein J. Verberne. Renal function in relation to cardiac 123I-MIBG scintigraphy in patients with chronic heart failure. Int J of Mol Imaging 2012 May;434790
43. Verberne HJ, Spank van der A, Bresser P, Somsen GA. The prognostic value of estimated glomerular filtration rate, amino-terminal portion of the pro-hormone B-type natriuretic peptide and parameters of cardiopulmonary exercise testing in patients with chronic heart failure. Heart Int. 2012;7:2
44. van Heerebeek L, Hamdani N, Falcão-Pires I, Leite-Moreira AF, Begieneman MP, Bronzwaer JG, van der Velden J, Stienen GJ, Laarman GJ, Somsen GA, Verheugt FW, Niessen HW, Paulus WJ. Low myocardial protein kinase G activity in heart failure with preserved ejection fraction. Circulation. 2012 Aug 14;126(7):830-9
45. L van Heerebeek, Franssen CP, Hamdani N, Verheugt FW, GA Somsen, WJ Paulus. Molecular and cellular basis for diastolic dysfunction. Curr Heart Fail Rep. 2012 aug 29.
46. De Peuter OR, Verberne HJ, Kok WE, Van den Bogaard B, Schaap MC, Nieuwland R, Meijers JC, Somsen GA, Bakx A, Kamphuisen PW. Differential effects of nonselective versus selective Beta-blockers on cardiac sympathetic activity and hemostasis in patients with heart failure. J Nucl Med 2013; aug 22.
47. Ter Bals E, Odekerken DA, Somsen GA. Takotsubo cardiomyopathy complicated by cardiac tamponade. Neth Heart J 2014;22(5):246-8.
48. J van Bavel, GA Somsen, G J de Grooth, I I Tulevski, A Lorsheyd, H Putter, M J Schalij, Prof, R C Pelger, H W Elzevier. Erectile dysfunction in the cardiology practice -A patients’ perspective. Am Heart J. 2014 Feb;167(2):178-85
49. Verschure DO, Somsen GA, van Eck-Smit BL, Knol RJ, Booij J, Verberne HJ, Tako-tsubo cardiomyopathy: How to understand possible pathophysiological mechanism and the role of 123IMIBG imaging. Nucl Cardiol 2014 Jan 24.
50. Verschure DO, Veltman CE, Manrique A, Somsen GA, Koutelou M, Katsikis A, Agostini D, Gerson MC, van Eck-Smit BL, Scholte AJ, Jacobson AF, Verberne HJ. For what endpoint does myocardial 123I-MIBG scintigraphy have the greatest prognostic value in patients with chronic heart failure? Results of a pooled individual patient meta-analysis. Eur Heart J Cardiovasc Imaging 2014 Mar. 30.
51. Verschure DO, Bongers V, Hagen PJ, Somsen GA, van Eck-Smit BL, Verberne HJ. Impact of a predefined mediastinal ROI on inter-observer variability of planar 123I-MIBG heart-to-mediastinum ratio. J Nucl Cardiol 2014 feb 4.
52. Vlaanderen L, Martial LC, Franssen EJ, van der Voort PH, Oosterwerff E, Somsen GA. Cardiac arrest after ibogaine ingestion. Clin Toxicol (Phila) 2014;52(6):642-3
53. Kalra PR, Garcia-Moll X, Zamorano J, Kalra PA, Fox KM, Ford I, Ferrari R, Tardif JC, Tendera M, Greenlaw N, Steg PG CLARIFY investigators (Somsen GA). Impact of chronic kidney disease on use of evidence-based therapy in stable coronary artery disease: a prospective analysis of 22.272 patients. PLoS One 2014 july 22;9(7):e102335.
54. Verschure DO, de Wit TC, Bongers V, Hagen PJ, Sonneck-Koenne C, D’Aron J, Huber K, van Eck-Smit BL, Knoll P, Somsen GA, Mirzaei S, Verberne HJ. 123I-MIBG heart-to-mediastinum ratio is influenced by high-energy photon penetration of collimator septa from liver and lung activity. Nucl Med Commun 2015;36(3):279-85.
55. Bakkum MJ, Danad I, Romijn MA, Stuijfzand WJ, Leonora RM, Tulevski II, Somsen GA, Lammertsma AA, van Kuijk C, van Rossum AC, Raijmakers PG, Knaapen P. The impact of obesity on the relationship between epicardial adipose tissue, left ventricular mass and coronary microvascular function. Eur J Nucl Med Mol imaging 2015 june 9.
56. Van Bree SHW, van Bree MDR, Somsen GA. Horner’s syndrome in a patient presenting with chest pain. Neth J of Med, July 2015;73(6):291-293
57. Fauchier L, Greenlaw N, Ferrari R, Ford I, Fox KM, Tardif JC, Tendera M, Steg PG. .. Somsen GA. Use of anticoagulants and antiplatelet agents in stable outpatients with coronary artery disease and atrial fibrillation international CLARIFY Registry. PLos One 2015 apr 27;10(4):e0125-164
58. Romijn MA, Danad I, Bakkum MJ, Stuijfzand WJ, Tulevski II, Somsen GA, Lammertsma AA, van Kuijk C, van de Ven PM, Min JK, Leipsic J, van Rossum AC, Raijmakers PG, Knaapen P. Incremental diagnostic value of epicardial adipose tissue for the detection of functionally relevant coronary artery disease. Atherosclerosis 2015 jul 7;242(1):161-166.
59. Verschure DO, van Eck BLF, Somsen GA, Verberne HJ. Cardiac sympathetic activity in hypertrophic cardiomyopathy and Tako-tsubo cardiomyopathy.  Clinical and Translational Imaging: Reviews in Nuclear Medicine and Molecular Imaging 2015 aug 4
60. Verschure DO, Boot E, van Amelsvoort TA, Booij J, van Eck-Smit BLF, Somsen GA, Verberne HJ. Cardiac sympathetic activity in 22q11.2 deletion syndrome. Int J Cardiol. 2016 Jun 1;212:346-51
61. Verschure DO, Boot E, van Amelsvoort TA, Booij J, van Eck-Smit BLF, Somsen GA, Verberne HJ. Corrigendum to “Cardiac sympathetic activity in 22q11.2 deletion syndrome”. Int J Cardiol. 2016 Nov 1;222:1141.
62. Verschure DO, van Eck BLF, Somsen GA, Knol RJ, Verberne HJ. Cardiac sympathetic activity in chronic heart failure: cardiac 123I-mIBG scintigraphy to improve patient selection for ICD implantation. Neth Heart J. 2016 sept 27.
63. Verschure DO, Baas F, van Eck BLF, Somsen GA, Verberne HJ. Polymorphism of SLC6A2 gene does not influence outcome of myocardial 123I-mIBG scintigraphy in patients with chronic heart failure. J Nucl Cardiol. 2016 nov 14.
64. Verschure DO, Lutter R, van Eck BLF, Somsen GA, Verberne HJ. Myocardial 123I-mIBG scintigraphy in relation to markers of inflammation and long-term clinical outcome in patients with stable chronic heart failure. J Nucl Cardiol 2016 nov 17.
65. Verschure DO, Groot de JR, Mirzaiei S, Gheysens O, Nakajima K, van Eck BLF, Somsen GA, Verberne HJ. Cardiac 123I-mIBG scintigraphy is associated with freedom of appropriate ICD therapy in stable chronic heart failure J. of Cardiol. 2017, aug 25
66. Danad I, Raijmakers PG, Driessen RS, Leipsic J, Raju R, Naoum C, Knuuti J, Maki M, Underwood RS, Min JK, Elmore K, Stuijfzand WJ, van Royen N, Tulevski II, Somsen GA, Huisman MC, van Lingen AA, Heymans MW, van de Ven PM, van Kuijk C, Lammertsma AA, Rossum AC, Knaapen P. Comparison of coronary CT angiography, SPECT, PET, and hybrid imaging for diagnosis of ischemic heart disease determined by fractional flow reserve. JAMA Cardiol 2017 Aug 16.
67. Verschure DO, Poel E, Nakajima K, Okuda K, van Eck BLF, Somsen GA, Verberne HJ. A European myocardial 123mIBG cross-calibration phantom study. J Nucl Cardiol 2017 jan 24.
68. Kauw D, Koole MAC, van Dorth JR, Tulevski II, Somsen GA, Schijven MP, Dohmen DAJ, Bouma BJ, Mulder BJM, Schuuring MJ, Winter MM, eHealth in patients with congenital heart disease; a review. Expert Rev Cardiovasc Ther 2018 sep;16(9)627-634.
69. Koole MAC, Kauw D, Winter MM, Dohmen DAJ, Tulevski II, Haan de R, Somsen GA, Schijven MP, Robbers-Visser D, Mulder BJM, Bouma BJ, Schuring MJ. First real-world experience with mobile health telemonitoring in adult patients with congenital heart disease. Neth Heart J. Nov 28.
70. Yousof H, Reintjes R, Slipszenko E, Blok S, Somsen GA, Tulevski II. Hofstra L. Effectiveness of web-based personalized e-Coaching lifestyle interventions. Neth Heart J 2019 Jan;27(1):24-29.
71. Koole MAC, Somsen GA, Tulevski II, Winter MM, Bouma BJ, Schuuring MJ. At last, mobile health leading to a diagnosis in a young patient with congenital heart disease. Neth Heart J 2019 March 27:3 162-163.
72. Kauw D, Koole MAC, Winter MM, Dohmen DAJ, Tulevski II, Blok S, Somsen GA, Schijven MP, Vriend JWJ, Robbers-Visser D, Mulder BJM, Bouma BJ, Schuuring MJ. Advantages of mobile health in the management of adult patients with congenital heart disease. Int J Med Inform. 2019 Dec;132:104011.
73. Somsen GA. Fast-Track Cardiology Clinics- Going Dutch! Neth Heart J. 2019 jul;27(7-8):343-346
74. Somsen GA. The role of ECG screening in primary care: a call for collaboration between general practitioner and cardiologist. Neth Heart J. 2020 April;2894):190-191.
75. Groepenhoff F, Eikendal ALM, Onland-Moret NC, Bots SH, Menken R, Tulevski II, Somsen GA, Hofstra L, den Ruijter HM. Coronary artery disease prediction in women and men using chest pain characteristics and risk factors: an observational study in outpatients clinics. BMJ Open 2020 April 26;1094):e035928.
76. Somsen GA, van Rijn C, Kooij S, Bem RA, Bonn D. Small droplet aerosols in poorly ventilated spaces and SARS-CoV2 transmission. Lancet Resp Med 2020 May https://doi.org/10.1016/S2213-2600(20)30245-9.
77. Blok S, van den Linder EL, Somsen GA, Tulevski II, Winter MM, van den Born GM. Success factors in high-effect, low-cost eHealth programs for patients with hypertension: a systematic review and meta-analysis. Eur J Prev Cardiol 2020 sept 11.
78. van Rijn C, Somsen GA, Hofstra L, Dahhan G, Bem RA, Kooij S, Bonn D. Reducing aerosol transmission of SARS-CoV-2 in hospital elevators. Indoor Air 2020 sept 23;10