Related Experiment Videos
Perforations after percutaneous coronary interventions: clinical, angiographic, and therapeutic observations
S C Ajluni1, S Glazier, L Blankenship
1Division of Cardiology (Department of Medicine), William Beaumont Hospital, Royal Oak, Michigan 48073-6769.
Insights
Coronary artery perforation is a rare complication of percutaneous coronary intervention, occurring in 0.4% of procedures. Complex lesions and interventional devices were primary causes, with most cases treated conservatively.
Area of Science:
- Cardiology
- Interventional Cardiology
- Medical Device Safety
Background:
- Percutaneous coronary intervention (PCI) is a common procedure for treating coronary artery disease.
- Coronary perforation is a rare but serious complication of PCI.
- Understanding the incidence, causes, and outcomes of coronary perforation is crucial for improving patient safety.
Purpose of the Study:
- To investigate the incidence and characteristics of coronary artery perforation during PCI.
- To identify risk factors and causes associated with coronary perforation.
- To evaluate the treatment strategies and clinical outcomes of patients experiencing coronary perforation.
Main Methods:
- Retrospective review of the Cardiology Quality Assurance Database at William Beaumont Hospital (October 1988 - December 1992).
- Analysis of 8,932 consecutive PCI procedures.
- Classification of perforations by coronary angiography and assessment of clinical outcomes.
Main Results:
- Coronary artery perforation occurred in 35 patients (0.4%) out of 8,932 PCIs.
- Higher perforation rates were observed with transluminal extraction coronary atherectomy (1.3%) and excimer laser coronary angioplasty (2%).
- Guidewires (20%) and interventional devices (74%) were the main causes, particularly in complex B2 or C lesions (83%).
- Delayed cardiac tamponade occurred in 9% of patients.
- Conservative therapy (63%) was the primary treatment, with surgical intervention in 37%.
- Serious complications included cardiac tamponade (17%), blood transfusion (34%), myocardial infarction (26%), and death (9%).
Conclusions:
- Coronary perforation is an infrequent but significant complication of PCI.
- Complex lesions and specific interventional devices are associated with increased perforation risk.
- Prompt recognition and appropriate management, often conservative, are essential to minimize adverse outcomes.
Abstract:
Coronary perforation is a rare, but potentially catastrophic, complication of percutaneous coronary intervention. A retrospective review of the Cardiology Quality Assurance Database was performed for all percutaneous coronary interventions (n = 8,932) at William Beaumont Hospital from October 1988 to December 1992. Coronary artery perforation was reported in 35 patients (0.4%), including after percutaneous transluminal coronary angioplasty (PTCA, 11/7,905, 0.14%), transluminal extraction coronary atherectomy (TEC, 6/420, 1.3%), directional coronary atherectomy (DCA, 1/249, 0.25%), and excimer laser coronary angioplasty (ELCA, 5/242, 2%); and none after high-speed mechanical rotational atherectomy with the Rotablator (MRA, 0/116, 0%). Perforations were classified by coronary angiography as free perforations (n = 10), contained perforations (n = 17), or other types of perforation (n = 8). Although perforation was apparent in 32 (91%) of 35 angiograms, delayed cardiac tamponade occurred in 3 patients (9%), despite the absence of angiographic evidence for perforation at the time of the procedure. Causes of perforation were the guidewire in 7 (20%), an interventional device in 26 (74%), and indeterminate in 2 (6%). Complex B2 or C lesions accounted for 83% of perforations. Final treatment included conservative therapy (reversal of anticoagulation and/or PTCA) in 22 (63%) and surgical intervention (with or without bypass surgery) in 13 (37%). Serious clinical complications included cardiac tamponade in 6 (17%), blood transfusion in 12 (34%), myocardial infarction in 9 (26%), and death in 3 (9%).