The Hidden Complication After Angiography: Diagnosing Postcatheterization Pseudoaneurysm
Postcatheterization Femoral Pseudoaneurysm: From the Yin-Yang Sign to Ultrasound-Guided Thrombin Injection Introduction: The Complication Nobody Wants to Miss A 76-year-old man underwent a successful coronary intervention. Twenty-four hours later, he complained of increasing right groin pain. The nursing staff noticed a progressively enlarging hematoma and a pulsatile mass. A vascular ultrasound was immediately performed. Within seconds, the diagnosis became clear. The lesion demonstrated a striking red-and-blue swirling appearance on color Doppler imaging—the famous Yin-Yang sign . The patient had developed a postcatheterization femoral pseudoaneurysm (PSA) . Although often considered an uncommon complication, femoral pseudoaneurysm remains one of the most important vascular complications following: Coronary angiography Percutaneous coronary intervention (PCI) Peripheral arterial intervention Endovascular aneurysm repair (EVAR) Transcatheter aortic valve implantation (...
