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Percutaneous Coronary Interventions Questions and Answers Rated A+
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Percutaneous Coronary Interventions
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Percutaneous Coronary InterventionsWhat is PCI? - answer group of techniques capable to relieving coronary artery
narrowing
Include PTCA and intracoronary stent implantation
Benefit of PCI vs thrombolytics – answer PCI treats underlying atherosclerotic lesion
the time from the patient's arrival in the emergency department to the time PCI is
performed is critical and should be - answerless than 60 minutes (time is muscle!). door-
to-balloon time
if PCI is not available within a 90 min time frame. - answer Thrombolytics, oxygen, NTG,
analgesic & ASA while waiting
What assessment is imperative pre-PCI procedure? - answer peripheral vascular
system
Used post op for evaluation
Include extremities color, sensation, temperature, capillary refill, and peripheral
perfusion using the grading scale common
Post op assessed q15min for 1st hour
Percutaneous Transluminal Coronary Angioplasty - PTCA What is this? - answerused to
open blocked coronary vessels and resolve ischemia with angina and for acute MI.
also be used to open blocked CABGs (coronary artery bypass grafts).
-balloon-tipped catheter (sheath) inserted in femoral artery for a conduit of other
catheters that are threaded up thru aorta into coronary arteries
-Angiography with contrast used to identify location and extent of blockage
-Balloon tipped dilation cath positioned over lestion and inflated with high pressure for
several seconds "cracking" the atheroma.
Goal of PTCA - answerImprovement of blood flow and residual stenosis < 20%
Increase in artery's lumen
Difference of < 20 mmHg in BP from one side of lesion to the other
No arterial trauma
What are complications of PTCA? - answerRestenosis
Bleeding or hematoma
Lost or weakened pulse distal to sheath
Pseudoaneurysm and arteriovenous fistula
Retroperitoneal bleeding
Acute renal failure
Allergic reaction
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