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 am 76 years of age and have been diagnosed with sick sinus syndrome. The suggested treatment is metoprolol and a pacemaker. I have not had any symptoms such as, light headedness, fainting, or tiredness, other than the feeling of the sometimes erratic heart beat. I am concerned of the possible...
Patients with Sick Sinus Syndrome may develop alternating too slow and/or too fast heart rhythms, also known as tachy-brady syndrome:  Like in your case, often patients don't have any symptoms, or if not, may present with fatigue, dizziness, palpitations, and (near) fainting. Sick sinus...

LATEST NEWS

27 Year Survival After CABG

Patients with CAD who underwent bypass surgery had better long-term survival rates than those who underwent PCI. After four years the CABG group had a 21% lower mortality rate.

Compare these 2012 data with long term survival rates in patients operated between 1985-2001.

 

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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,...