The Architecture of Occlusion: Embolization in Interventional Medicine

Abstract

Embolization is a minimally invasive medical treatment that uses different types of embolic techniques to block specific
blood vessels or body cavities. Embolization was initially used as a solution for emergency bleeding situations but is now an
accepted treatment method in multiple medical disciplines including trauma medicine, interventional oncology, neurovascular treatment, pulmonary haemorrhaging, and various gynaecological and urological procedures. Embolization procedures can
be categorized based on their access method, treatment purpose, targeted body parts, and the duration which their blockage
remains active. The most common method for performing the procedure uses endovascular techniques because they provide
accurate results and flexible treatment options. The medical field uses various embolic devices including coils, vascular plugs,
calibrated microspheres, liquid embolic systems to create specific occlusions based on the size of blood vessels, the speed of
blood flow and the desired clinical results. The selection of materials serves as the primary factor which determines how well
embolic materials perform because their physical and chemical characteristics and visibility in medical imaging, strength
and blood clotting ability affect their performance. Medical specialists still observe multiple complications which include
non-target embolization, recanalization, catheter entrapment, hydrophilic polymer embolism despite major improvements in
catheter technology and embolic product development. The medical field experts expect that new technologies will improve
procedural safety and patient treatment methods and extend patient life through the introduction of smart biomaterials, shape
memory polymers, radiopaque drug eluting platforms, computational modelling, artificial intelligence driven planning and
3D printing. This review provides a complete framework which shows all aspects of embolization methods and their medical
uses and their embolic materials and their device requirements and their future research paths in this fast-developing industry.