O’Keefe ECG & CV Board Review is an innovative and comprehensive online study-guide combining decades of expertise with an intuitive interface to ensure cardiology fellows feel confident and prepared for their CV Disease Certification exam.
O’Keefe ECG & CV Board Review is an innovative and comprehensive online study-guide combining decades of expertise with an intuitive interface to ensure cardiology fellows feel confident and prepared for their CV Disease Certification exam.
Our interactive study guide includes immediate feedback, result explanations, performance tracking, and timed test simulations to ensure you will be confident and prepared during your CV Board exams.
432
ECG Cases
covering the 89 diagnoses found on the CV Boards ECG scoresheet
65
Echo Cases
covering the 154 diagnoses on the CV Boards Echo scoresheet
60
Angiogram Cases
covering the 66 diagnoses on the CV Boards Angiogram scoresheet
406
QBank Cases
multiple-choice questions focused on current Guidelines and topics covered on prior CV Boards to prepare you for Day 1
Renowned CV Fellowship Programs using our ECG and CV Board Review:
Baylor Scott & White Heart Hospital CV Program
Duke University CV Program
Massachusetts General/Brigham & Women's CV Fellowship Training Program
Mayo Foundation for Medical Education and Research
Mid America Heart Institute/University of Missouri-Kansas City
University of Texas
About Us
Decades of experience and a dedicated team at your finger tips
Created by cardiologist James H O’Keefe, MD, FACC and his team of cardiologists, cardiology fellows, and digital designers, who continue to update the site and add relevant cases; this interactive study guide is packed with high-yield vignette cases that will prepare the user to excel on the CV Boards. This unique resource is evolving into a syllabus to teach users what they need to know to be a state-of-the-art clinical cardiologist. This new version is more interactive, faster and based on the latest CV Boards score sheets to familiarize the user with the format they will see on their ultimate high-stakes test.
With our fully responsive website you will never have to miss a study session again. We understand better than anyone how busy the life of a cardiology fellow can be and want to make sure that no matter how crazy life gets you still have access to your study materials.
i tried various resources for ekg mastery, ecg made easy, ecg interpretation booklet, LIFTL, all the common ones. This is by far the best ekg source for me. it is complete and outstanding. i was super happy to hear it expanded to include echos and angiograms as well. it is a MUST have source. Highly recommended
Moayad A
7/3/2025
O’Keefe EKG is hands down one of the most valuable ECG learning platforms available. With crystal-clear tracings, thoughtfully structured cases, and a user-friendly interface, it offers an unparalleled blend of clinical relevance and didactic clarity. Whether you’re an intern honing your fundamentals or a fellow preparing for boards, this resource delivers exactly what you need—precision, depth, and practicality. The inclusion of high-quality echo clips and cath films adds tremendous value, reinforcing pathophysiology through real-world imaging and enhancing clinical integration. Immensely grateful to Dr. O’Keefe and his team for their tireless efforts in building such a phenomenal educational tool.
Ramy G
5/29/2025
An absolutely outstanding, comprehensive, and meticulously crafted resource that seamlessly bridges the gap between board preparation and real-world clinical practice. Dr. O’Keefe and his incredible team have created a true gem—one that distills complex concepts into clear, practical insights, empowering learners at every level. Their dedication to excellence and education shines through every page, making this a must-have for anyone striving for mastery in the field. A heartfelt thank you to Dr. O’Keefe and his team for their unwavering commitment to shaping the next generation of cardiologists!An absolutely outstanding, comprehensive, and meticulously crafted resource that seamlessly bridges the gap between board preparation and real-world clinical practice. Dr. O’Keefe and his incredible team have created a true gem—one that distills complex concepts into clear, practical insights, empowering learners at every level. Their dedication to excellence and education shines through every page, making this a must-have for anyone striving for mastery in the field. A heartfelt thank you to Dr. O’Keefe and his team for their unwavering commitment to shaping the next generation of cardiologists!
Talal A
10/7/2023
O’Keefe ECG has been a great resource for me throughout my training. It does a wonderful job of testing residents’ and fellows’ knowledge of interpreting ECGs using real-life patient examples for a more realistic immersion, complemented by clear and concise explanations. This website is an invaluable resource for all residents. Thank you, Dr. O’Keefe!
Laura D
5/21/2023
Excellent source of learning EKGs. being interactive makes it easy and more interesting. Also having brief explanation of the EKG findings in the clinical context and diagnosis. Would highly recommend as an excellent source of learning EKG
Abat K
9/11/2022
Fantastic source for ECG review. Good for all levels of training! I especially like how easy it is to review the explanations on the different morphologies that present themselves on ECG. The interface is very professional and easy to use. Would highly recommend!
Alex S
9/6/2022
This website is a fantastic resource for learning ECGs. I got to know about this website from CV fellows at my hospital, and I feel this is a great learning tool for all IM and EM residents. The EKGs on the website are of high definition, which allows for clear image quality even when zooming in. The option to solve random ECGs or review the classic cases step-by-step makes this very unique. I am looking forward to more exciting updates on the websites.
Roopesh Sai J
5/19/2022
Excellent online resource for trainees with over 300 practice ECGs. Works perfectly in tandem with the complete guide to ECGs book by Dr. O’Keefe. Highly recommended for fellows and residents interested in Cardiovascular Medicine.
Yasser S
5/15/2022
O’Keefe ECG is a great online learning tool for ECGs. I have come across other ECG resources but this one is unique and better because of its interactive nature. The scoring system not only solidified fundamental ECG concepts but also familiarized me with the format of cardiology boards. After using this resource, I feel much more comfortable in commenting on ECGs in my everyday practice. Apart from cardiology fellows, I would recommend this resource to residents who have a special interest in cardiology.
Preetham G
5/8/2022
O’Keefe ECG is a wonderful resource for studying and understanding EKG. It is a complete package and I have applied the knowledge I learned from this resource during my night rotations as an intern. Highly recommended for residents.
Ali N
4/27/2022
O’Keefe ECG is an excellent source that has helped me perfect my ECG reading skills. I’ve been told many times that the best way to learn ECGs is repeated exposure. This site offers exactly that with detailed explanations. As a medical student, the nuanced discussion of the various ECG abnormalities and rhythms has made me more comfortable reading ECGs on rounds. This is a great resource for anyone who wants interactive feedback integrated into their learning!
Mitchell F
10/5/2020
Excellent source of high yield ECGs for the boards. User friendly interface and representative of what to expect on test day. Explanations not only guide you as to the correct answer choices, but put it in clinical context. When I used ECGsource, it had some inaccurate information and issues with overcoding that became confusing. This is clear and accurate and a nice supplement to the O’Keefe ECG book.
Brett S
9/29/2020
There are (currently) many online resources to choose from, when deliberating on the most ideal study method for the ECG component of the CV Disease Boards. Dr. O’Keefe’s ECG assessment platform outshines all others – both in the meticulous style by which all ECG criteria are succinctly summarized but (also) by means of the diversity of the cases presented to the viewer. As a trainee, I have found this resource the most ideal for rapid-pace studying and am confident that this will provide me with the greatest potential to excel on the upcoming board examination. I would strongly encourage all CV Disease fellows as well as re-certifying health providers to sample this site.
