Perforation of the Septal Perforators: A Case Series and Proposed Management Paradigm

Septal artery perforations are an uncommon complication of percutaneous coronary intervention. Unlike epicardial vessels, septal perforations do not result in pericardial effusions but rather produce septal haematomas. While most can be managed expectantly, a small proportion requires active management to prevent rapid haematoma expansion resulting in compromise of right ventricular filling and 'dry tamponade'. We present two cases of septal artery perforation during percutaneous coronary intervention and propose a management approach that takes into account the unique haemodynamic consequences of this complication.