Methods for treating endoleaks during endovascular repair of abdominal aortic aneurysms

A method for sealing endoleaks in a patient arising from endovascular repair of abdominal aortic aneurysms which method comprises:

• identifying an abdominal aortic aneurysm in a patient;
• endovascularly repairing said aneurysm by catheter delivery of an endovascular prosthesis to the site of said aneurysm thereby inhibiting blood flow into the aneurysm;
• identifying one or more endoleaks in a patient;
• and
• delivering through a microcatheter to the site or sites of endoleaks in said patient a sufficient amount of a fluid composition comprising a biocompatible prepolymer, a water insoluble contrast agent and, when necessary to provide for a fluid composition, a biocompatible solvent wherein said delivery is conducted under conditions wherein the fluid composition forms a coherent adhesive mass in situ thereby sealing the endoleaks.

A kits of parts for use in sealing endoleaks arising from endovascular repair of an aneurysm which comprises:

• (a) a fluid composition which forms a coherent mass in the presence of blood which mass adheres to the vascular surface and/or the surface of the endovascular prosthesis;
• (b) a catheter suitable for delivering the fluid composition to an endoleak site formed from endovascular repair of an aneurysm;
• and
• (c) a catheter suitable for delivering an endovascular prosthesis to the aneurysm.

A kits of parts for use in sealing endoleaks arising from endovascular repair of an aneurysm which comprises:

• (a) a fluid composition which forms a coherent mass in the presence of blood which mass adheres to the vascular surface and/or the surface of the endovascular prosthesis;
• (b) a catheter suitable for delivering the fluid composition to an endoleak site formed from endovascular repair of an aneurysm;
• and
• (c) an endovascular prosthesis.