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!

My mother has been lately suffering from a unique BP ailment. She had a blackout recently in which she was semi-conscious. Since then we have been monitoring her BP and have found that her systolic BP hovers around 140-150 while her diastolic level oscillates between 60-70. Yesterday night the...
Hi Sam, A high SBP & low DBP are suggestive of a leaking (insufficient) aortic valve . If so and if significant, the only treatment is repair/replacement. Whether this is necessary at this point depends on whether the heart function has suufered from the leakage.  Hope this...


We recorded a new Ask Dr T Live Video Session on 5/3/14


In it, I answered two of your questions.  about ICDs and "Diet & Exercise". 

If you want to participate in the next session, please answer  a few questions from the form you can find here:










Reports, medical articles,
and industry news information
for health care professionals.

Surgical competence requires a complex set of interdependent roles and abilities that include psychomotor, cognitive,...
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,...