- abnormal electrocardiogram (ekg)
- abnormal stress test
- acute bacterial endocarditis
- alcoholic cardiomyopathy
- anomalies of the coronary artery
- aortic diseases
- aortic regurgitation
- aortic stenosis
- aortic valve disease
- aortic valve sclerosis
- arrhythmogenic right ventricular cardiomyopathy
- atherosclerosis of the aorta
- athletic heart syndrome
- atrial fibrillation
- atrial flutter
- atrial septal defect (asd)
- atrial tachycardia
- atrioventricular block
- autoimmune pericarditis
- bicuspid aortic valve
- cardiac angina
- cardiac arrhythmias
- cardiac insufficiency
- cardiac tamponade
- cardiac tumor
- cardiopulmonary disease
- chagas disease
- chest pain
- cholesterol disorders
- congestive heart failure (chf)
- coronary artery calcification
- coronary artery disease
- coronary artery fistula
- cyanotic heart disease
- dilated cardiomyopathy
- double outlet right ventricle (dorv)
- dyspnea on exertion
- exercise intolerance
- familial dilated cardiomyopathy
- family history of heart disease
- family history of sudden cardiac death
- fibromuscular dysplasia
- first degree heart block
- genetic cardiomyopathy
- giant cell myocarditis
- heart disease in women
- heart murmur
- heart problems
- heart racing
- heart valve disease
- hypertrophic cardiomyopathy
- idiopathic hypertrophic subaortic stenosis
- infiltrative disorders of the heart
- ischemic cardiomyopathy
- kawasaki disease
- left bundle branch block
- left heart failure
- left ventricular hypertrophy
- mitral valve disease
- mitral valve prolapse
- mitral valve regurgitation
- mitral valve stenosis
- mthfr mutation
- myocardial infarction (mi)
- orthostatic hypotension
- papillary muscle disorders
- paroxysmal supraventricular tachycardia
- paroxysmal tachycardia
- paroxysmal ventricular tachycardia
- partial anomalous pulmonary venous return (papvr)
- patent ductus arteriosus
- patent foramen ovale
- pericardial effusion
- peripheral edema
- premature atrial contraction
- premature beats
- pulmonary artery stenosis
- pulmonary edema
- pulmonary valve disorders
- pulmonary valve insufficiency
- pulmonary valve stenosis
- pulmonary vein stenosis
- pulmonary veno occlusive disease
- restrictive cardiomyopathy
- rheumatic aortic regurgitation
- rheumatic aortic stenosis
- rheumatic diseases of pulmonary valve
- rheumatic fever
- rheumatic heart disease
- rheumatic heart failure
- rheumatic mitral regurgitation
- rheumatic mitral stenosis
- right bundle branch block
- right heart failure
- right ventricular hypertrophy
- secondary hypertension
- sick sinus syndrome
- subaortic stenosis
- supraventricular tachycardia
- tricuspid regurgitation
- tricuspid stenosis
- tricuspid valve disease
- valve stenosis
- valvular endocarditis
- valvular heart disease
- vasovagal syncope
- ventricular aneurysm
- ventricular arrhythmia
- ventricular fibrillation
- ventricular tachycardia
- viral cardiomyopathy
- cardiac risk assessment
- cardiopulmonary exercise testing
- cardiovascular care
- dobutamine stress test
- electrocardiogram (ekg)
- heart health
- in office cardiac echocardiogram
- in office cardiac stress test
- left atrial appendage closure
- loop recorder
- preoperative evaluation
- preventative cardiology
- prosthetic heart valves
- sports related cardiovascular assessment
- stress echo cardiogram
- transcatheter mitral valve repair
- transesophageal echocardiography
- transthoracic echocardiogram
Rachel Marcus, MD, is a board-certified cardiologist at MedStar Heart & Vascular Institute, and the Interim Director of the Echo Labs at MedStar Union Memorial and MedStar Good Samaritan Hospitals. Her practice focuses on the use of echocardiogram procedures like transesophageal echocardiography (TEE) and transthoracic echocardiography (TTE) for the diagnosis of cardiovascular conditions such as coronary artery disease, valvular heart disease, congestive heart failure. She is a structural echocardiographer who helps guide the non-surgical valve repair and replacement procedures at MedStar Union Memorial Hospital. Through her work as the Medical Director of the non-profit Latin American Society of Chagas she has become an internationally recognized expert in Chagas disease, and provides consultation for both doctors and patients who have questions about this disease.
After receiving her medical degree from Stanford University School of Medicine, Dr. Marcus completed an internal medicine residency at Brigham and Women's Hospital in Boston. She then went on to complete an internal medicine residency and a cardiovascular medicine fellowship at the Stanford University Medical Center.
Dr. Marcus is fluent in Spanish and Portuguese.
Philosophy of Care
"I strive to provide the best quality of care to all of my patients, including them as a partner in the decisionmaking process."
- Fellowship Program: Stanford University School of Medicine (2001)
- Residency Program: Stanford University School of Medicine (1997)
- Residency Program: Brigham and Women's Hospital (1996)
- Medical School: Stanford University School of Medicine (1994)
- Board Certification: American Board of Internal Medicine, Cardiovascular Disease
Marcus, R., Atwood, E. Atrial Fibrillation and Anticoagulation. Advances in Internal Medicine, Vol. 44, Chapter 9, 1999 Mosby.
Do, D., Marcus, R., Froelicher, VF., et al. Predicting Severe Angiographic Coronary Artery Disease Using Computerization of Clinical and Exercise Test Data. Chest 1998 114:1437–45.
Vagelos, R., Marcus, R., Atwood, JE. Signs, Symptoms, and Laboratory Abnormalities in Cardiovascular Disease. Hospital Medicine, Chapter 24 April 2000, Lippincott Press.
Prakash, M., Myers, J., Froelicher, VF., Marcus, R., et al. Diagnostic Exercise Tests on 4000 Consecutive Men. Am Heart J. 2001 142(1):127-35.
Prakash, M., Myers, J., Froelicher, VF., Marcus, R., et al. Clinical and Exercise Test Predictors of All-Cause Mortality: Results from >6000 Consecutive Referred Male Patients. Chest 2001 120(3):1003-13.
Shetler K., Marcus, R., Froelicher, VF., et al. Heart Rate Recovery: Validation and Methodologic Issues. J Am Coll Cardiol. 2001 Dec; 38(7):1980-7.
Spin, JM., Prakash, M., Froelicher, VF., Partington, S., Marcus, R., et al. The Prognostic Value of Exercise Testing in Elderly Men. Am J Med. 2002 Apr. 15; 112(6):453-9.
Marcus RR., Kalisetti, D., Raxwal, V., et al. Early Repolarization in Spinal Cord Injury: Prevalence and Clinical Significance. J. Spinal Cord Med. 2002 Spring 25(1):33-38.
Prakash M, Raxwal V, Froelicher VF, Kalisetti D, Vieira A, O'Mara G, Marcus R, et al. Electrocardiographic Findings in Patients With Chronic Spinal Cord Injury. I Am J Phys Med Rehabil. 2002 Aug;81(8):601-8
Kolasa, MW., Lee, JC., Atwood, JE., Marcus, R., Eckert, RE,. Relation of QTc Duration Heterogeneity to Mortality Following Orthotopic Heart Transplantation. Am J Cardiol. 2005 Feb 1;95(3):431-2.
Perez, MV., Dewey, FE., Marcus, R., Ashley, EA., et al. Electrocardiographic Predictors of Atrial Fibrillation. Am Heart J. 2009 Oct; 158(4):622-8
Kaplinski M, Jois M, Galson-Cardenas G, et al. Sustained Domestic Vector Exposure Is Associated With Increased Chagas Cardiomyopathy Risk but Decreased Parasitemia and Congenital Transmission Risk Among Young Women in Bolivia. Clin Infect Dis. (2015) 61 (6): 918-926.
Fu, K, Zamudio, R, et al. Association of caspase-1 Polymorphisms with Chagas Cardiomyopathy among individuals in Santa Cruz, Bolivia. Rev Soc Bras Med Trop 50(4):516-523, July-Aug 2017.
Acquatella, H, Asch F, et al. Recommendations for Multimodality Cardiac Imaging in Patients with Chagas Disease: A Report from the American Society of Echocardiography in Collaboration with the InterAmerican Association of Echocardiography (ECOSIAC) and the Cardiovascular Imaging Department of the Brazilian Society of Cardiology (DIC-SBC). JASE January 2018 31(1): 3-25.
Castro, Y and Marcus, R. Epidemiology of Chagas Disease in the USA: High Risk Patient Populations for Screening. Curr. Trop. Med. Reports 12 Jan 2019
Marcus RR. Chagas Disease: It’s Not the Zebra You Think It Is. https://www.acc.org. April 9, 2019.
Echeverria, L, Marcus, R, Novick, G et al. WHF IASC Roadmap on Chagas Disease. Global Heart, 15(1), p.26
Marcus RR. A Latin American Immigrant With Cardiac Arrest. https://www.acc.org. Apr 14, 2020.
Marcus RR. Poll: Chagas Disease in the United States. https://www.acc.org. Apr 14, 2020.
Castro-Sesquen, Y, Saldana, A, Patino Nava, D, et al. Use of a Latent Class Analysis in the diagnosis of chronic Chagas disease in the Washington Metropolitan Area. Clin Infect Dis. 2020 Aug 7:ciaa1101
Wheelock, A Sandhu S, Loskill A et al. Testing for Chagas disease in an at-risk population. J Card Fail. 2020 Sep 6:S1071-9164.
Echeverria L, Rojas, L Rueda Ochoa O, et al. Circulating Trypanosoma cruzi load and major cardiovascular outcomes in patients with chronic Chagas cardiomyopathy: a prospective cohort study. Trop Med Int Health. 2020 Sep 10.
Zaidel, E, Forsyth C, Novick G, Marcus R, et al. Covid-19: implications for people with Chagas disease. Global Heart 2020;15(1):69.
Shehadeh, M, Barac, A, Marcus, R. Clinical Presentations of Chagas Cardiomyopathy. Case Rep Cardiol. 2020 Nov 3;2020:8884910
Prevalence of Chagas Disease in Bolivian Immigrants to North America, Marcus, R, and Sanchez, J. ASTMH annual meeting 2013.
Dr. Marcus is one of seven physicans that helped save the life of Steven Jones, the husband of Dr. Sandra Swain.
- MedStar Harbor Hospital
- MedStar Good Samaritan Hospital
- MedStar Union Memorial Hospital
- MedStar Washington Hospital Center