Balloon rupture during coronary angioplasty

Area of Science:

• Cardiovascular Interventions
• Interventional Cardiology
• Medical Device Safety

Background:

• Percutaneous coronary angioplasty (PTCA) is a common procedure for treating coronary artery disease.
• Complications, such as balloon rupture, can occur during PTCA and may impact patient outcomes.
• Understanding the frequency and consequences of balloon rupture is crucial for procedural safety.

Purpose of the Study:

• To determine the incidence of balloon rupture during PTCA.
• To identify factors associated with balloon rupture, such as lesion calcification.
• To evaluate the clinical consequences and long-term outcomes following PTCA balloon rupture.

Main Methods:

• Retrospective analysis of 1,500 consecutive PTCA procedures.
• Identification of cases with balloon rupture.
• Review of patient records for lesion characteristics, procedural details, and complications.
• Assessment of angiographic restenosis rates in a subset of patients.

Main Results:

• Balloon rupture occurred in 55 patients (3.6%) out of 1,500 PTCA procedures.
• Lesion calcification was present in 12.7% of rupture cases.
• Mean rupture pressure was 10.7 atmospheres; all balloons were retrieved successfully.
• Intimal tears were observed in 32.7% of cases, with 3 patients requiring bypass surgery.
• The restenosis rate at follow-up was 38% in 29 restudied patients.

Conclusions:

• Balloon rupture during PTCA is a rare event with a low incidence.
• Despite potential complications like intimal tears, balloon retrieval is typically uncomplicated.
• PTCA balloon rupture does not appear to be associated with significantly adverse long-term consequences or increased restenosis rates.