Mariko Kawashima

Showa General Hospital, Edo, Tōkyō, Japan

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Publications (3)0.13 Total impact

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    ABSTRACT: The patient was a 48-year-old male with an unruptured cerebral aneurysm located at the bifurcation between the right internal carotid artery and the persistent primitive trigeminal artery (PPTA). The patient underwent a coil embolization treatment because the aneurysm had a gradual growth on annual follow-up of magnetic resonance angiography. Balloon-assisted coiling of the aneurysm including PPTA was performed and complete obliteration of the aneurysm and the origin of PPTA was achieved. No complication related to the treatment was observed. On the follow-up angiography performed 14 months after the treatment, complete obliteration of the aneurysm was unchanged, but the antegrade flow of the PPTA was recovered. PPTA is the most major persistence of fetal carotid-basilar anastomosis. Treatment and follow-up reports of aneurysms located at PPTA are still limited in number. In the discussion section, we summarize the previous reports and compare them to our case.
    Surgery for Cerebral Stroke 01/2014; 42(3):218-223. DOI:10.2335/scs.42.218
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    Gakushi Yoshikawa · Mariko Kawashima · Kazuo Tsutsumi ·
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    ABSTRACT: Branches from the cervical portion of the internal carotid artery are rare. In most cases, atherosclerotic stenosis is found at the bifurcation of the internal and external carotid arteries. However, when associated with atherosclerotic carotid artery disease, the origin of the rare branches arising from the internal carotid artery can be another site of stenosis. This report describes a rare case of such tandem carotid stenosis treated by carotid endarterectomy and the importance of the possibility of stenosis at the origin of the anomalous branch from the internal carotid artery. A 73-year-old Japanese woman presented with transient left hemiparesis and vertigo. Magnetic resonance angiography seemed to indicate two stenotic lesions distal to the right internal carotid artery in addition to the origin of the right internal carotid artery, and angiography indicated tandem stenotic lesions of the internal carotid artery. The patient was successfully treated with right carotid endarterectomy, including the distal stenotic lesion of internal carotid artery, and postoperative angiography indicated that the occipital artery arose from the internal carotid artery. It is important to recognize rare cases of the anomalous origin of the occipital artery from the internal carotid artery and the possibility that the origin of such an anomalous occipital artery may be the cause of stenosis.
    Journal of Medical Case Reports 11/2013; 7(1):254. DOI:10.1186/1752-1947-7-254
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    ABSTRACT: Penetrating brain injury caused by a high speed projectile is rather rare in Japan, known for its strict gun-control laws. We report a case of a 55-year-old male, who was transferred to our hospital with a foreign body in the brain due to penetrating head injury, which was caused by an explosion of a construction machine. Neurological examination demonstrated severe motor aphagia with no apparent motor paresis. The patient had a scalp laceration on his left forehead with exposed cerebral tissue and CSF leakage. Head CT scan and plain skull X-ray revealed a 20 mm×25 mm bolt which had penetrated due to the explosion of the machine. The anterior wall of the left frontal sinus was fractured resulting in dural laceration, and scattered bone fragments were seen along the trajectory of the bolt. Digital subtraction angiography showed no significant vascular injuries including superior sagittal sinus. We performed open surgery, and successfully removed the bolt along with the damaged frontal lobe. The patient had no infection or seizure after the surgery, and was transferred for further rehabilitation therapy. We performed a cosmetic cranioplasty six months later. Surgical debridement of the damaged cerebral tissue along the trajectory led to successful removal of the bolt with no further neurological deficit.
    No shinkei geka. Neurological surgery 05/2012; 40(5):421-7. · 0.13 Impact Factor