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J Cerebrovasc Endovasc Neurosurg. 2019 21(1): 5-10
The Journal of Cerebrovascular and Endovascular Neurosurgery
Advantages and disadvantages of the ENVOY 6F distal access guiding catheter in endovascular coiling for anterior circulation aneurysms
Jin Wook Baek1*, Sung-Chul Jin4*, Sung-Tae Kim2, Young Jin Heo1, Ji Yeon Han1, Jung Hwa Seo3, Sung Hwa Paeng2, Jung Soo Kim4, Hae Woong Jeong1, Young-Gyun Jeong2
1Department of Diagnostic Radiology, 2Neurosurgery, 3Neurology, Inje University Busan Paik Hospital, 4Department of Neurosurgery, Inje University Haeundae Paik Hospital

Objective : Selecting an appropriate guiding catheter to provide both sufficient supportability for working devices and sufficient distal navigability is essential for ensuring the success of a procedure. This study aimed to evaluate the advantages and disadvantages of using the ENVOY 6F distal access (DA) guiding catheter in coil embolization of anterior circulation cerebral aneurysms. Methods : We included 98 patients (72 [73.5%] women, median age: 63 [range: 25-84] years) who underwent endovascular coiling with the ENVOY 6F DA guiding catheter from May to November 2016. We analyzed data on patient demographics and the number of co-axial techniques to position the guiding catheter, initial and final location of the catheter, and complications related to the catheter. Results : The co-axial technique was used to position the ENVOY 6F DA guiding catheter in the internal carotid artery (ICA) in 20 cases (20.41%). The initial position of the ENVOY 6F DA guiding catheter involved the cervical ICA (79.6%), horizontal petrous ICA (17.3%), and vertical petrous ICA (3.1%). Final control angiograms after endovascular coiling showed proximal change in the final, compared to the initial, position of the ENVOY 6F DA guiding catheter in 25 cases (25.51%). Procedure-related complications were observed in nine patients (9.18%), involving vasospasm in all cases; however, there was no symptomatic case. Conclusion : The ENVOY 6F DA guiding catheter had relatively sufficient distal navigability without symptomatic procedural complications. However, the change in the catheter position after endovascular coiling denoted insufficient supportability.
Key words : Carotid Artery, Internal, Catheterization, Intracranial Aneurysm,

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