REFERENCES
1. Saha B, Wien E, Fancher N, Kahili-Heede M, Enriquez N, Velasco-Hughes A. Heyde’s syndrome: a systematic review of case reports. BMJ Open Gastroenterol. 2022;9(1):e000866.
2. Hudzik B. Practice. 2016;188(2):135–8.
3. Blackshear JL. Heyde Syndrome: Aortic Stenosis and Beyond. Clin Geriatr Med [Internet]. 2019;35(3):369–79. Available from: https://doi.org/10.1016/j.cger.2019.03.007
4. Massyn MW, Khan SA. Heyde syndrome: A common diagnosis in older patients with severe aortic stenosis. Age Ageing. 2009;38(3):267–70.
5. Loscalzo J. Clinical implications of basic research: From Clinical Observation to Mechanism — Heyde ’ s Syndrome. N Engl J Med. 2012;367(20):1954–6.
6. Warkentin TE, Moore JC, Anand SS, Lonn EM, Morgan DG. Gastrointestinal bleeding, angiodysplasia, cardiovascular disease, and acquired  von Willebrand syndrome. Transfus Med Rev. 2003 Oct;17(4):272–86.
7. Starke RD, Ferraro F, Paschalaki KE, Dryden NH, McKinnon TAJ, Sutton RE, et al. Endothelial von Willebrand factor regulates angiogenesis. Blood. 2011;117(3):1071–80.
8. Greenstein RJ, McElhinney AJ, Reuben D, Greenstein AJ. Colonic vascular ectasias and aortic stenosis: coincidence or causal  relationship? Am J Surg. 1986 Mar;151(3):347–51.
9. Batur P, Stewart WJ, Isaacson JH. Increased prevalence of aortic stenosis in patients with arteriovenous malformations of the gastrointestinal tract in Heyde syndrome. Arch Intern Med. 2003;163(15):1821–4.
10. Rosa VEE, Ribeiro HB, Fernandes JRC, de Santis A, Spina GS, Paixão MR, et al. Heyde’s syndrome: Therapeutic strategies and long-term follow-up. Arq Bras Cardiol. 2021;117(3):512–7.
11. Goltstein LCMJ, Rooijakkers MJP, Görtjes NCC, Akkermans RP, Zegers ES, Pisters R, et al. Reduction of Gastrointestinal Bleeding in Patients with Heyde Syndrome Undergoing Transcatheter Aortic Valve Implantation. Circ Cardiovasc Interv. 2022;15(7):E011848.
12. Waldschmidt L, Drolz A, Heimburg P, Goßling A, Ludwig S, Voigtländer L, et al. Heyde syndrome: prevalence and outcomes in patients undergoing transcatheter aortic valve implantation. Clinical Research in Cardiology. 2021;110(12):1939–46.
13. Fierro EA, Sikachi RR, Agrawal A, Verma I, Ojrzanowski M, Sahni S. Aorto-Atrial fistulas a contemporary review. Vol. 26, Cardiology in Review. Lippincott Williams and Wilkins; 2018. p. 137–44.
14. Jainandunsing JS, Linnemann R, Maessen J, Natour NE, Lorusso R, Gelsomino S, et al. Aorto-atrial fistula formation and therapy. Vol. 11, Journal of Thoracic Disease. AME Publishing Company; 2019. p. 1016–21.