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Biomedical subjects

S Kawaguchi

Publications and source records attributed to S Kawaguchi.

At least 343 records · Page 19Linked to original sources
PubMed1975

[Ventriculography with methylglucamine iocarmate (Dimer-X). Experimental and Clinical study (author's transl)].

Evaluation of 60% solution of Methylglucamine iocarmate (Dimer-X) for ventriculography in animal experiment and clinical cases was reported. The experimental result was compared with that of Conray 60 and Angiografin, which was reported in our previous papers. In seven intraventricular injections of 2.0 ml, administered to 6 dogs, convulsion was observed on three occasions, facial myoclonus on 1 and no symptoms on the remaining three. However, in 7 intraventricular injections of 1.5 ml for 6 dogs, 6 were symptom-free and only residual one showed convulsion. And no dog died in either experiment. No changes were seen in a subsequent ventriculogram one month after the 1st ventriculography with Dimer-X and also no histological changes of the ventricular wall were revealed one month after the first experiment. These experimental results suggested less toxicity of Dimer-X than Conray 60 or Angiografin. Clinically, in 17 neurosurgical patients, ventriculography was performed with 1-5 ml of Dimer-X. No patients showed convulsive complication, but there was one episode of vomiting in each of 2 cases and slight headache in one case. From our experimental and clinical studies, it is concluded that the Dimer-X is to be considered the best watersoluble contrast medium for ventriculography at present.

Adolescent↗
PubMed1975

[External carotid-basilar anastomosis: case report (author's transl)].

The occipital-vertebral anastomosis is one of the anastomotic channels between the external carotid system and the intracranial vessels. In this paper, we have reported a large, left external carotid-basilar anastomosis which was incidentally revealed in a patient with left hemiparesis due to arteriosclerotic occlusion of the right internal carotid artery. A 55-year-old man suddenly developed left hemiparesis without headache, unconsciousness or vomiting on the morning of January 15, 1973. When he was referred to our service on April 11, the noticeable neurological findings were left hemiparesis and left homonymous hemianopsia. The right carotid angiogram revealed occlusion of the internal carotid artery associated with collateral channels from the external carotid artery. Also a segment of the vertebral artery was visualized via the muscular branch of the occipital artery. In the left carotid angiogram, the posterior circulation was markedly visualized throught the left vertebral artery originating from the external carotid artery trunk. This anastomotic vessel had a large branch with constant caliber leading to the occipital fossa. But the posterior cerebral artery was directly visualized from the internal carotid artery without connection to the basilar artery. Repeated bilateral brachial angiograms revealed hypoplasis of the vertebral arteries. It was suggested that the persistent external carotid-basilar anastomosis might be constantly associated with hypoplasia or aplasia of the bilateral vertebral arteries.

Basilar Artery↗