Testa-Fernández et al. Journal of Medical Case Reports 2011, 5:304 http://www.jmedicalcasereports.com/content/5/1/304 Acknowledgements The authors thank the nurses for their cooperation. Authors’ contributions AT performed the ETT and drafted the manuscript. CP helped in the management of the patient. RP obtained the echocardiograms. RR, VP, and MR were responsible for the management of the patient during his hospitalization. JS and RF performed the literature search. CG was a major contributor in writing the manuscript. All authors read and approved the final manuscript. Competing interests The authors declare that they have no competing interests. Received: 12 December 2010 Accepted: 11 July 2011 Published: 11 July 2011 References 1. Chahine RA, Raizner AE, Ishimori T: The clinical significance of exercise- induced ST-segment elevation. Circulation 1976, 54:209-213. 2. Mark DB, Hlatky MA, Lee KL, Harrell FE Jr, Califf RM, Pryor DB: Localizing coronary artery obstructions with the exercise treadmill test. Ann Intern Med 1987, 106:793-800. 3. Gallik DM, Mahmarian JJ, Verani MS: Therapeutic significance of exercise- induced ST-segment elevation in patients without previous myocardial infarction. Am J Cardiol 1993, 72:1-7. 4. Prinzmetal M, Ekmekci A, Kennamer R, Kwoczynski JK, Shubin H, Toyoshima H: Variant form of angina pectoris: previously undelineated syndrome. JAMA 1960, 174:1794-1800. 5. Ortega-Carnicer J: Giant R wave, convex ST-segment elevation, and negative T wave during exercise treadmill test. J Electrocardiol 2004, 37:231-236. 6. Madias JE: The “giant R Waves” ECG pattern of hyperacute phase of myocardial infarction. J Electrocardiol 1993, 26:77-82. 7. Lanza GA, Sestito A, Sgueglia GA, Infusino F, Manolfi M, Crea F, Maseri A: Current clinical features, diagnostic assessment and prognostic determinants of patients with variant angina. Int J Cardiol 2007, 118:41-47. doi:10.1186/1752-1947-5-304 Cite this article as: Testa-Fernández et al.: “Giant R wave” electrocardiogram pattern during exercise treadmill test: A case report. Journal of Medical Case Reports 2011 5:304. Page 6 of 6 Submit your next manuscript to BioMed Central and take full advantage of: • Convenient online submission • Thorough peer review • No space constraints or color ﬁgure charges • Immediate publication on acceptance • Inclusion in PubMed, CAS, Scopus and Google Scholar • Research which is freely available for redistribution Submit your manuscript at www.biomedcentral.com/submit