Coronary Artery Perforation: Difference between revisions

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==Classification==
#redirect:[[PCI complications: vessel perforation]]
The Ellis Classification<ref name="pmid7994814">{{cite journal |author=Ellis SG, Ajluni S, Arnold AZ, ''et al.'' |title=Increased coronary perforation in the new device era. Incidence, classification, management, and outcome |journal=Circulation |volume=90 |issue=6 |pages=2725–30 |year=1994 |month=December |pmid=7994814 |doi= |url=}}</ref> categorizes coronary artery perforations based on their [[angiographic]] appearance in the following manner:
* '''Type I''' - Extraluminal crater without [[extravasation]]
* '''Type II''' - [[Epicardial]] fat or myocardial blush without contrast jet extravasation
* '''Type III''' - Extravasation through frank (> 1 mm) perforation
* '''Type III "cavity spilling" (CS)''' - Refers to Type III perforations with contrast spilling directly into either the [[left ventricle]], [[coronary sinus]], or another anatomic circulatory chamber
 
 
 
==Advantages of Each Choice==
 
Prolonged balloon inflations can be performed rapidly.  However, patients may not tolerate balloon inflations because of the development of [[ischemia]], [[arrhythmias]], or [[hemodynamic]] instability.  Therefore, perfusion balloon use may be optimal if it is available.
 
[[PTFE]] coated stent placement can rapidly and effectively close vessel wall defects, obviating open surgical procedures.
 
Surgical repair offers the advantage of visualizing difficult-to-identify perforations.  [[Cardiopulmonary bypass]] may be needed to [[hemodynamically]] stabilize patients with perforations.
 
Coil [[embolization]] is suitable for small side branch perforations, but it will lead to tissue infarction and may not be available in all [[Cath lab|catheterization laboratories]].
 
==Making a Selection==
Initial management of perforations should always begin with prolonged balloon inflation. 
 
Once prolonged balloon inflation is attempted, other options may be explored.  [[PTFE]] coated stents have now become more readily available and are deployed more frequently.  They can be used for most coronary perforations, but small, excessively angulated or [[tortuous]] vessels may not be amenable to them.
 
Coil [[embolization]] is suited for small vessels, distal locations, arteries that supply limited viable [[myocardium]], or situations where surgery is [[contraindicated]].
 
Surgical closure is necessary for perforations that demonstrate continued bleeding despite minimal invasive therapy, refractory [[ischemia]], or recurrent [[hemorrhage]].
 
[[Pericardiocentesis]] is indicated to prevent overt cardiac [[tamponade]] for all patients who accumulate [[pericardial]] fluid as evidenced by increasing right atrial pressure.
 
==Is Treatment Working?==
 
There are several signs that indicate whether treatment is failing.  Incomplete closure is signified by persistent dye extravasation, while [[pericardial]] fluid collection and impending cardiac [[tamponade]] is signified by increasing right atrial pressure.  Peristent fluid accumulation or pericardial drain output (>24 h) should prompt surgical repair.
 
Serial echocardiography should be performed q 6-12h.
 
==References==
{{reflist}}
 
 
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[[Category:Cardiology]]
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Latest revision as of 12:19, 19 August 2013