I am Dr Tryzelaar and a retired cardio thoracic surgeon. After a life-long career in the treatment of heart diseases, I created this web site to help you with your cardiac disease questions. This is what you'll get:





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Ask the Doctor your cardiac related questions today!

I proactively requested a stress test, at 66, due to not having had one in 10 years and my sister just had emergency CABG, possibly with genetic factors causing the coronary artery disease. Stress test completed, problem found, angiogram done 2 days ago.  Two blockages, 90%-95% occlusion of...
Stents have a 10-15% failure rate in the first year of implant when the cardiologist judge it is an optimal situation. In your case, if a procedure is indicated, you will be much better of with a CABG. I have written about your situation here: How long does a heart stent last? Do they need to...



For some time now I have been a volunteer physician at the Portland Community Free Clinic, where low-income residents in the area receive free medical care.
Dr T


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Surgical Anatomy Lecture, Tufts University School of Medicine GI Tract Embryology Joan F. Tryzelaar, MD, FACS, FACCP 1/...
Surgical Anatomy Lecture, Tufts University School of Medicine Embryology of Body Cavities Joan F. Tryzelaar, MD, FACS,...