Heart Surgery and Devices Flashcards
Recurrence with balloon angioplasty
Re-stenosis and return of symptoms in 6 months for 10-50% of patients
Recurrence with stent placement
Reduced re-stenosis to 20-30%
Drug-eluting stent
Metal stent coated with a polymer containing anti- proliferative agents inhibit re-stenosis
If a stent was placed a month or less ago,
reach out to cardiologist regarding prophylaxis.
Patients with stents are on ——, do not discontinue this
Dual antiplatelet therapy
ICD - implantable cardiac defib.
Looks the same, goes in the same spot as a pacemaker. If heart is in defib, it recognizes it and it shocks the heart.
Interrogation
Essentially means that function of implant is checked.
Ask if —- valve - two most common ones to have problems.
aortic or mitral
Dead tissue (MI) heals by
scarring. Aortic valve MI scarring can render valve useless.
Causes of Valvular Disease
Scarring of myocardial tissues (MI)
Overwork of leaflets (HTN)
Calcium deposits causing thickening of the leaflets (age) Infections (IE)
Aortic valves do not —-. Stenotic aortic valve —–
prolapse
opens less.
Progression of Valvular Disease
Blood backs up into pulmonary vasculature Blood backs up in the systemic vasculature Heart failure
Echocardiogram
Size & shape of heart, anatomic abnormalities How well is pump working? Chambers & valves
Mechanical Valve meds
Anticoagulation—lifelong Antibiotic prophylaxis—lifelong
If someone is diagnosed w/valve issues at a young age, —- is a good choice. Problem is that you are
mechanical
on anticoagulant for a lifetime. Need antibiotic prophy forever.