Welcome to The Thalheimer Center for Cardio-Oncology

Register for our Patient Symposium!

Developments in cancer treatment and care have dramatically improved survival for cancer patients, allowing them to live longer, fuller lives. However, just as these treatments are necessary to eradicate cancer, they can also negatively impact other organ systems, including the cardiovascular system. The mission of the Thalheimer Center for Cardio-Oncology is to relentlessly advance the cardiovascular health in our cancer patients and survivors, and envision a world of longer, healthier lives. Our diverse team of clinicians, physician-scientists, researchers, and trainees within the Cardio-Oncology community at Penn allow us to offer specialized, state-of-the-art cardiovascular care for cancer patients and survivors. Located in Philadelphia, our institution is one of the few in the nation that brings together specialists in both cardiology and oncology to treat and protect your heart prior to, during, and after cancer treatment. For over 15 years, our multidisciplinary team has been caring for cancer patients and survivors. Today, it is possible to find a doctor with a specialty in Cardio-Oncology at multiple Penn Medicine locations. Our cardiologists work closely with the oncologists of the Abramson Cancer Center to provide seamless, integrated care.

Under the leadership of the Thalheimer Center's Director, Dr. Bonnie Ky, MD, MSCE, the Thalheimer Center is driven by core values of excellence; patient-centeredness; innovation; collaboration; and inclusivity. We are tightly aligned with the Abramson Cancer Center's mission to prevent, control, and ultimately cure cancer, our vision is to advance rigorous, impactful, and actionable science; provide highly accessible, empathic, exceptional patient care; and build the next generation of physicians, scientists, and care providers.    

          Donate to the Thalheimer Center for Cardio-Oncology

Joan Thalheimer with Cardio-Oncology Providers under the Thalheimer Center for Cardio-Oncology sign
From left to right: Dr. Rupal O'Quinn, Dr. Michael Fradley, Dr. Bénédicte Lefebvre, Dr. Joseph Carver, Joan Thalheimer, Dr. Bonnie Ky, and Dr. Marielle Scherrer-Crosbie.

Thalheimer Center News

  • Clinical Cardio-Oncology Fellowship 2027 Monday, January 5, 2026

    The Thalheimer Center is now accepting applications for a clinical cardio-oncology fellow for 2027! We offer a 1-year clinical fellowship for board-eligible cardiologists with the fundamental objective of providing the highest level of clinical training for the next generation of academic clinicians in cardio-oncology. Interested applicants should visit the link above or reach out to Kellie.Mcdermott@pennmedicine.upenn.edu for more information. 

  • Congratulations to Drs. Matthew Barrett and Javier Sierra-Pagan! Monday, January 5, 2026

    Congratulations to Drs. Matthew Barrett, MD and Javier Sierra-Pagan, MD, PhD for matching into the cardiovascular disease fellowship at Penn! We wish them the best and look forward to continuing to work with them on cardio-oncology research projects.

  • Congratulations Congying Xia! Monday, January 5, 2026

    Congratulations to Dr. Congying Xia, MD, PhD on her first author publication in JAMA Open Network. This study found that in patients with breast cancer or lymphoma treated with anthracyclines, NT-proBNP–guided cardioprotection is safe, feasible, and might result in some early improvements in heart function. Read the paper in the link above!

Thalheimer Center Events

  • Thalheimer Center Cardio-Oncology Patient Symposium Wednesday, May 20, 2026 8:00am-1:00pm

    Our overarching goal of this patient-centered symposium is to provide our patients at the Abramson Cancer Center with actionable knowledge relevant to their cardiovascular health as they navigate their cancer journey.