Abstract
Objective: We recently developed Super-Masamune. It is a double lumen balloon microcatheter, which is recently approved as an assist balloon for aneurysmal coil embolization in Japan. We report our initial clinical experiences of Super-Masamune.
Case 1: A 73-year-old female with unruptured right internal carotid artery aneurysm was admitted for embolization. Super-Masamune was introduced into the aneurysm. At first, it was used as a standard microcatheter for coil insertion. Then, balloon of the super-Masamune was inflated, and the guide wire lumen of the super-Masamune was still used for coil insertion. Finally, the super-Masamune was moved to the internal carotid artery and was used as assist balloon.
Case 2: A 68-year-old female with unruptured basilar tip aneurysm was admitted for embolization. Most part of the aneurysm was ridden on the right posterior cerebral artery (PCA). Branching angle of the right PCA was very acute. So, super-Masamune was introduced into the left PCA. Even in this position, the balloon of super-Masamune was bulged into the right PCA and the neck of aneurysm was completely protected.
Conclusion: In clinical use, the balloon itself is very compliant. It easily herniates to free space and makes better neck protection possible. Because of double lumen, it can be used not only as neck plasty balloon, but also as the catheter for coil insertion.
