Title: Myocardial Perforation From A Fractured Rib During Cardiopulmonary ResuscitationRunning Title: Myocardial Perforation From A Fractured Rib During Cardiopulmonary ResuscitationRyan Cousins, MD1, Byron Robinson Williams III, MD1, Maan Jokhadar, MD21Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia, USA2Department of Cardiology, Mayo Clinic, Rochester, MN, USAAddress correspondence to:Senior author’s full name, degrees: Maan Jokhadar, MDDepartmental affiliation: Department of CardiologyInstitution: Mayo ClinicAddress: 200 First Street SW, Rochester, MN 55905Tel: 507-255-4622Fax: 507-255-2550Email: jokhadar.maan@mayo.eduConflict of Interest Disclosure Statement: The authors of this case image have no financial disclosures or conflicts of interest with the material presented in this article.Acknowledgements:We would like to formally acknowledge and thank the incredible echocardiography technicians and department staff for their contributions to developing this case image.