CardioExchange Archive

July 15th, 2013

The Conundrum of Low-Gradient Severe Aortic Stenosis with Preserved LVEF

Thomas Marwick and John Ryan, MD

Thomas Marwick discusses his research group’s study of how patients who have severe aortic stenosis with low gradient and a preserved LV ejection fraction fare after aortic valve replacement.

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July 11th, 2013

Thrombolytic Therapy for Prosthetic Valve Thrombosis in Pregnant Women?

Mehmet Ozkan, Professor of Cardiology, Patricia Casais, MD, PhD and John Ryan, MD

Mehmet Özkan discusses his research group’s study of low-dose, slow-infusion t-PA in pregnant women with prosthetic valve thrombosis. Patricia Casais, a coauthor of the official editorial on the study, also offers her perspective.

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June 17th, 2013

Douglas Zipes: Portrait of the Electrophysiologist as a Novelist

Douglas P Zipes, MD, John Ryan, MD and Harlan M. Krumholz, MD, SM

Renowned electrophysiologist Douglas Zipes discusses his second career as a writer of thrillers.

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June 13th, 2013

A Wiki World for Physicians

C. Michael Gibson, M.S., M.D. and John Ryan, MD

CardioExchange’s John Ryan interviews Harvard Medical School professor C. Michael Gibson, founder and editor-in-chief of WikiDoc.org, a “living textbook of medicine” online. Ryan: Why did you create WikiDoc? Gibson: Innovation increases as free and open access to information grows. Our mission statement is that “Healthcare is enriched when medical information flows freely.” Traditional textbooks, typically in paper format, are […]

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June 10th, 2013

Research During Fellowship: Perspectives from the Protégé and the Mentor

Stephen Archer, MD and John Ryan, MD

In the first part of this post, CardioExchange’s John Ryan writes about the research he performed during his cardiology fellowship under the mentorship of Stephen Archer. In the second part, originally delivered at the Resident Research Day at Queen’s University, at which he is Professor and Head of the Department of Medicine, Archer gives his “elevator […]

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May 12th, 2013

How Should Recent Trials Affect CRT Practice?

Sana M Al-Khatib, MD, MHS and John Ryan, MD

In recent weeks the cardiac resynchronization therapy (CRT) field has been absorbing the publication of the BLOCK HF trial in the New England Journal of Medicine and the publication of the NARROW-CRT trial in Circulation: Arrhythmia and Electrophysiology. These trials raised the possibility that CRT may improve clinical status in some patients with ischemic cardiomyopathy […]

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April 24th, 2013

Quinidine In Ireland: Rarely Needed, Hard To Find

Gerard J Fahy, MD, Niamh O'Hanlon, BPharm MSc Grad Dip Risk Mgmt Cert Pharm Prac and John Ryan, MD

Recently in the Journal of the American College of Cardiology Viskin et al published the results of a survey  looking at the worldwide availability of quinidine. They found that the drug — the only effective oral antiarrhythmic in Brugada syndrome and idiopathic ventricular fibrillation — is readily available in only 19 countries and is unavailable or […]

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April 22nd, 2013

The Science of Management and The Art of Medicine

Kenneth John McConnell, PhD and John Ryan, MD

K. John McConnell discusses his research group’s study of standard management practices as they relate to quality of care in hospital cardiac units.

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April 18th, 2013

Educating House Staff on Appropriate Use of Echoes

Rory B Weiner, MD, Rajan Sacha Bhatia, MD/MBA and John Ryan, MD

A relatively simple educational intervention reduces the ordering of inappropriate echoes

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April 17th, 2013

Cardio Oncology: Counseling Women on The Cardiovascular Risks of Radiation Therapy

John Ryan, MD

What to tell women with breast cancer about the cardiovascular risks of radiation therapy for breast cancer.

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