You can easily search a majority of the Penn Libraries journal titles about Cardiothoracic Surgery in Browzine.
Cardiovascular Surgery — Surgery — University of Pennsylvania — BrowZine
Cardiology and Vascular Medicine — Medical Specialties A-N — University of Pennsylvania — BrowZine
Below are direct links to a selection of these titles.
12 Strokes: A Case Based Guide to Acute Ischemic Stroke Management by 
Endovascular management of ischemic stroke: a case-based approach by 
Endovascular Skills: Guidewire and Catheter Skills for Endovascular Surgery by 
Rutherford's Vascular Surgery and Endovascular Therapy, 2-Volume Set by 
