Andrea Gioppo1, Giuseppe Faragò2, Valentina Caldiera3, Luigi Caputi4, Alberto Cusin5, Elisa Ciceri6. 1. Department of Neuroradiology, Interventional Unit, IRCCS Foundation Neurological Institute "C. Besta", Milano, Italy; Postgraduation School in Radiodiagnostics, Università degli Studi di Milano, Milano, Italy. 2. Department of Neuroradiology, Interventional Unit, IRCCS Foundation Neurological Institute "C. Besta", Milano, Italy. Electronic address: giuseppe.farago@istituto-besta.it. 3. Department of Neuroradiology, Interventional Unit, IRCCS Foundation Neurological Institute "C. Besta", Milano, Italy. 4. Cerebrovascular Unit, IRCCS Foundation Neurological Institute "C. Besta", Milano, Italy. 5. Department of Neurosurgery 1, IRCCS Foundation Neurological Institute "C. Besta", Milano, Italy. 6. Department of Neuroradiology, Interventional Unit, IRCCS Foundation Neurological Institute "C. Besta", Milano, Italy; Department of Neuroradiology, Azienda Ospedaliera Universitaria Integrata Borgo Trento, Verona, Italy.
Abstract
BACKGROUND: Tentorial dural arteriovenous fistulas (DAVFs) are uncommon, complex fistulas located between the leaves of the tentorium cerebelli with a specific anatomic and clinical presentation characterized by high hemorrhagic risk. We present a rare case of a medial tentorial DAVF successfully managed via transarterial embolization using SQUID liquid polymer. CASE DESCRIPTION: A 60-year-old woman presented with a history of left progressive hearing loss and tinnitus for >1 year. Cerebral angiography demonstrated the presence of a medial tentorial DAVF with multiple arterial feeders, including the artery of Davidoff and Schechter; reverse venous outflow was observed in the inferior sagittal sinus and in multiple cortical veins. The patient underwent transarterial embolization with SQUID liquid polymer, an embolic agent that provides 2 different viscous formulations to cast the DAVF. The procedure went well without any complication, and the patient regained her preoperative status. In the postprocedural period, the patient experienced complete resolution of tinnitus. At 6 months, she remained asymptomatic, and cerebral angiography confirmed complete, stable occlusion of the fistula and normalization of cerebral deep venous outflow. CONCLUSIONS: Medial tentorial DAVFs are considered the most complex DAVFs because of their location and extensive vascular supply. Our literature review focused on endovascular treatment of tentorial DAVFs to highlight the usefulness of new embolic agents in management of these diseases. To our knowledge, we report the first successful use of SQUID liquid polymer in management of a tentorial DAVF.
BACKGROUND: Tentorial dural arteriovenous fistulas (DAVFs) are uncommon, complex fistulas located between the leaves of the tentorium cerebelli with a specific anatomic and clinical presentation characterized by high hemorrhagic risk. We present a rare case of a medial tentorial DAVF successfully managed via transarterial embolization using SQUID liquid polymer. CASE DESCRIPTION: A 60-year-old woman presented with a history of left progressive hearing loss and tinnitus for >1 year. Cerebral angiography demonstrated the presence of a medial tentorial DAVF with multiple arterial feeders, including the artery of Davidoff and Schechter; reverse venous outflow was observed in the inferior sagittal sinus and in multiple cortical veins. The patient underwent transarterial embolization with SQUID liquid polymer, an embolic agent that provides 2 different viscous formulations to cast the DAVF. The procedure went well without any complication, and the patient regained her preoperative status. In the postprocedural period, the patient experienced complete resolution of tinnitus. At 6 months, she remained asymptomatic, and cerebral angiography confirmed complete, stable occlusion of the fistula and normalization of cerebral deep venous outflow. CONCLUSIONS: Medial tentorial DAVFs are considered the most complex DAVFs because of their location and extensive vascular supply. Our literature review focused on endovascular treatment of tentorial DAVFs to highlight the usefulness of new embolic agents in management of these diseases. To our knowledge, we report the first successful use of SQUID liquid polymer in management of a tentorial DAVF.
Authors: Massimo Venturini; Carolina Lanza; Paolo Marra; Anna Colarieti; Marta Panzeri; Luigi Augello; Simone Gusmini; Marco Salvioni; Francesco De Cobelli; Alessandro Del Maschio Journal: CVIR Endovasc Date: 2019-02-04