Study Of Costs Realized After Percutaneous Coronary intervenTion Employing Same Day Discharge

Inclusion Criteria: * Consecutive patients who undergo elective or low-risk, (i.e., in the setting of unstable angina but not non-ST segment elevation myocardial infarction) urgent PCI. * No sociodemographic factors that would preclude SDD (prohibitive factors include no family member/friend available to remain with patient until nurse phone call the following day, no working phone, no reliable transportation, home \> 60 minutes from medical infrastructure, unable to obtain/pay for medications). * PCI procedures performed between 08/04/14 and 08/03/16. * Short term risk of in-hospital death, transfusion or contrast-induced nephropathy during the index hospitalization at or below 1% using Blue Cross Blue Shield of Michigan Cardiovascular Consortium (BMC2) PCI registry risk prediction models. * No in-lab complications (prolonged angina, acute closure, no reflow, significant or untreated dissection, vessel perforation, side branch occlusion, rescue glycoprotein IIb/IIIa inhibitor use, ventricular tachycardia or fibrillation requiring cardioversion/defibrillation, tamponade, pulmonary edema, stroke or transient ischemic attack, shock). * Contrast Volume/Calculated Creatinine Clearance ratio \< 3 * No recurrent chest pain, shortness of breath, hemodynamic instability, bleeding or vascular complications during 6 hours in recovery area post-PCI Exclusion Criteria: * Use of rotational atherectomy * Use of a glycoprotein IIb/IIIa inhibitor infusion post-PCI