JosephLynnfieldBlackshearMD

Cardiology • Jacksonville, FL

Adult Congenital Heart Disease, Echocardiography

Professor, Internal Medicine, Mayo Medical School

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Office
4500 San Pablo Road
Jacksonville, FL 32099
Phone+1 904-953-7279

Fax+1 904-953-2911
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Education & Training

Duke University HospitalFellowship, Cardiovascular Disease, 1984 - 1986
Brigham and Women's Hospital/Massachusetts General HospitalFellowship, Nephrology, 1982 - 1984
Hennepin HealthcareResidency, Internal Medicine, 1981 - 1982
Hennepin HealthcareResidency, Internal Medicine, 1978 - 1980
Mayo Clinic College of MedicineClass of 1978

Certifications & Licensure

FL State Medical License 1986 - 2025
MN State Medical License 1980 - 2023
GA State Medical License 2014 - 2020
NC State Medical License 1984 - 1999
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Cardiovascular Disease

Awards, Honors, & Recognition

Top Doctors: Florida Castle Connolly, 2000
Fellow (FACC) American College of Cardiology
Top MD Consumers Checkbook

Clinical Trials

Biomarkers in Aortic Stenosis - B.A.S.S. Start of enrollment: 2010 Jul 01
Completed
Occult Gastrointestinal Bleeding in Non-pulsatile Left Ventricular Assist Device(VAD)Patients Start of enrollment: 2011 Jun 22
Completed
Colchicine and CRP in Atrial Fibrillation and AF Ablation Start of enrollment: 2013 Mar 01
Completed
Phase 2
Kinetics of Troponin and BNP in Breast Cancer Chemotherapy With Adriamycin and Trastuzumab Start of enrollment: 2013 Jan 01
Completed
A Study of Stellate Ganglion Block and / or Reserpine in Group 2 Pulmonary Hypertension Start of enrollment: 2016 Jul 01
Withdrawn
Phase 1
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Publications & Presentations

PubMed

1 citations
Improvement in gastrointestinal bleeding after septal myectomy for hypertrophic cardiomyopathy.
Daokun Sun, Hartzell V Schaff, Juliano Lentz Carvalho, Rick A Nishimura, Joseph A Dearani, Steve R Ommen, Joseph L Blackshear, Jeffrey B Geske> ;The Journal of Thoracic and Cardiovascular Surgery. 2024 Jan 1
2 citations
Preoperative echocardiography as a prognostic tool for liver transplant in patients with hypertrophic cardiomyopathy.
Sher-Lu Pai, Ryan M Chadha, Ilana I. Logvinov, Tara J. Brigham, Kymberly D. Watt, Zhuo Li, William C. Palmer, Joseph L. Blackshear, Stephen Aniskevich> ;Clinical Transplantation. 2021 Nov 17
36 citations
Effect of Intensive Blood Pressure Lowering on the Risk of Atrial Fibrillation.
Elsayed Z. Soliman, Akm Fazlur Rahman, Zhu Ming Zhang, Carlos J. Rodriguez, Tara I. Chang, Jeffrey T. Bates, Lama Ghazi, Joseph L. Blackshear, Michel Chonchol, Lawrenc...> ;Hypertension. 2020 May 4
22 citations
Pulmonary arterial stiffness assessed by cardiovascular magnetic resonance imaging is a predictor of mild pulmonary arterial hypertension
Jordan Ray, Charles D. Burger, Patricia Mergo, Robert E. Safford, Joseph L. Blackshear, Christopher Austin, De Lisa Fairweather, Michael G. Heckman, Tonya Zeiger, Marc...> ;The International Journal of Cardiovascular Imaging. 2019 Oct 1
23 citations
Effect of Intensive Blood Pressure Reduction on Left Ventricular Mass, Structure, Function, and Fibrosis in the SPRINT-HEART.
Bharathi Upadhya, Michael V. Rocco, Nicholas M. Pajewski, Timothy R. Morgan, Joseph L. Blackshear, William G Hundley, Suzanne Oparil, Elsayed Z. Soliman, Debbie L. Coh...> ;Hypertension. 2019 Jul 1
11 citations
Heyde Syndrome: Aortic Stenosis and Beyond.
Joseph L. Blackshear> ;Clinics in Geriatric Medicine. 2019 May 27
11 citations
Periprocedural Stroke and Myocardial Infarction as Risks for Long-Term Mortality in CREST
Michael R. Jones, George Howard, Gary S. Roubin, Joseph L. Blackshear, David J. Cohen, Donald E. Cutlip, Pierre P. Leimgruber, David Rhodes, Ronald J. Prineas, Stephen...> ;Circulation. Cardiovascular Quality and Outcomes. 2018 Nov 1
5 citations
Hypertrophic Cardiomyopathy in Liver Transplantation Patients.
Sher-Lu Pai, Stephen Aniskevich, Ilana I. Logvinov, G.V. Matcha, William C. Palmer, Joseph L. Blackshear> ;Transplantation Proceedings. 2018 Jun 1
8 citations
Acute Cardiac Complications in Critical Brain Disease.
Juan G. Ripoll, Joseph L. Blackshear, José L. Díaz-Gómez> ;Neurosurgery Clinics of North America. 2018 Apr 1
4 citations
Gastrointestinal Bleeding in Native and Prosthetic Valve Disease.
Joseph L. Blackshear> ;Current Treatment Options in Cardiovascular Medicine. 2018 Feb 3
9 citations
Impact of Intensive Versus Standard Blood Pressure Management by Tertiles of Blood Pressure in SPRINT (Systolic Blood Pressure Intervention Trial).
Brian P. Shapiro, Walter T. Ambrosius, Joseph L. Blackshear, William C. Cushman, Paul K. Whelton, Suzanne Oparil, Srinivasan Beddhu, Jamie P. Dwyer, Lisa H. Gren, Will...> ;Hypertension. 2018 Jan 1
3 citations
Von Willebrand factor multimer quantitation for assessment of cardiac lesion severity and bleeding risk.
Christopher Austin, Dong Chen, Colleen S. Thomas, Robert E. Safford, Brian P. Shapiro, Justin A. Bryan, Jordan Ray, Joseph L. Blackshear> ;Research and Practice in Thrombosis and Haemostasis. 2018 Jan 1
3 citations
Platelet Function Analyzer 100 and Brain Natriuretic Peptide as Biomarkers in Obstructive Hypertrophic Cardiomyopathy
Joseph L. Blackshear, Robert E. Safford, Colleen S. Thomas, J. Martijn Bos, Michael J. Ackerman, Jeffrey B. Geske, Steve R. Ommen, Brian P. Shapiro, Gretchen S. Johns> ;The American Journal of Cardiology. 2017 Dec 1
5 citations
Acute Cardiac Complications in Critical Brain Disease.
Juan G. Ripoll, Joseph L. Blackshear, José L. Díaz-Gómez> ;Neurologic Clinics. 2017 Nov 1
1 citations
Dofetilide-induced torsade de pointes in high-grade atrioventricular node dysfunction.
Ali A Alsaad, Scott M. Silvers, Fred Kusumoto, Joseph L. Blackshear> ;Postgraduate Medical Journal. 2017 Oct 1
3 citations
Three-Dimensional Echocardiography for Diagnosis of Transcatheter Prosthetic Aortic Valve Endocarditis.
Yahaira Ortiz Gonzalez, Ryan Ung, Joseph L. Blackshear, Steven M. Laman> ;CASE. 2017 Aug 1
54-Year-Old Woman With Progressive Dyspnea on Exertion and Syncopal Episodes
Catalina Sanchez-Alvarez, Oludamilola Oluleye, Joseph L. Blackshear> ;Mayo Clinic Proceedings. 2017 Jul 1
8 citations
High-Risk Echocardiographic Features Predict Mortality in Pulmonary Arterial Hypertension
Christopher Austin, Charles D. Burger, Garvan C. Kane, Robert E. Safford, Joseph L. Blackshear, Ryan Ung, Jordan Ray, Ali A Alsaad, Khadija Alassas, Brian P. Shapiro> ;American Heart Journal. 2017 Jul 1
13 citations
High-Sensitivity Troponin T and NT-proBNP Kinetics in Breast Cancer Chemotherapy.
Pooja Advani, Jonathan Hoyne, Alvaro Moreno-Aspita, Marcia Dubin, Shelly Brock, Caroline Harlow, Saranya Chumsri, Thomas M. Suter, Joseph L. Blackshear> ;Chemotherapy. 2017 Jan 1
28 citations
von Willebrand Factor Abnormalities and Heyde Syndrome in Dysfunctional Heart Valve Prostheses.
Joseph L. Blackshear, Chad McRee, Robert E. Safford, Peter M. Pollak, Mark E. Stark, Colleen S. Thomas, Candido E. Rivera, Ewa M. Wysokinska, Dong Chen> ;JAMA Cardiology. 2016 May 1
1 citations
39-Year-Old Woman With Dyspnea and Chest Pain
Scott A Helgeson, Asha U. Nookala, Joseph L. Blackshear> ;Mayo Clinic Proceedings. 2016 Jul 1
14 citations
Usefulness of Von Willebrand Factor Activity Indexes to Predict Therapeutic Response in Hypertrophic Cardiomyopathy.
Joseph L. Blackshear, Hana Kusumoto, Robert E. Safford, Ewa M. Wysokinska, Colleen S. Thomas, Oral Waldo, Mark E. Stark, Brian P. Shapiro, Steven Ung, Issam Moussa, Ri...> ;The American Journal of Cardiology. 2016 Feb 1
2 citations
Atrioventricular Sequential Pacing for Hypertrophic Cardiomyopathy During Liver Transplantation.
Juan A. Ramos, Sher-Lu Pai, Dana K. Perry, Joseph L. Blackshear, Stephen Aniskevich> ;A & A Case Reports. 2015 Oct 15
44 citations
Anesthetic type and risk of myocardial infarction after carotid endarterectomy in the Carotid Revascularization Endarterectomy versus Stenting Trial (CREST)
Robert J. Hye, Jenifer H. Voeks, Mahmoud B. Malas, Mee Lee Tom, Sonni Longson, Joseph L. Blackshear, Thomas G. Brott> ;Journal of Vascular Surgery. 2015 Aug 1
19 citations
Remission of recurrent gastrointestinal bleeding after septal reduction therapy in patients with hypertrophic obstructive cardiomyopathy-associated acquired von willeb...
Joseph L. Blackshear, Mark E. Stark, Richard C. Agnew, Issam Moussa, Robert E. Safford, Brian P. Shapiro, Oral Waldo, Dong Chen> ;Journal of Thrombosis and Haemostasis. 2015 Feb 1
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Journal Articles

Pulmonary Arterial Stiffness Assessed by Cardiovascular Magnetic Resonance Imaging Is a Predictor of Mild Pulmonary Arterial Hypertension
Robert Safford, Christopher Austin, Charles Burger, Jordan C Ray, Joseph Blackshear, Brian Shapiro, Patricia Mergo, The International Journal of Cardiovascular Imaging