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Biomedical subjects

T Seo

Publications and source records attributed to T Seo.

At least 145 records · Page 8Linked to original sources

[Analysis of the right ventricular function by simulation (author's transl)].

In the previous experiments it was reported that either the interventricular septum of the free wall of the right ventricle was replaceable with a non-contractile prosthesis. It was also reported that a new chamber constructed on the epicardium had capability of producing a pulsatile pressure. This study was to determine contribution of the septum and the free wall on performance of the right ventricle by using a simulator. Left-ward shift of the interventricular groove was not found along the basal half of the long axis and was limited only along the apical half. Bulging of the septum toward the right ventricular cavity did not occur at all, but on contrary the septum moved toward left, denying contribution of the septal movement to pump action of the right ventricle.

Animals↗

A possible case of saccular endolymphatic hydrops.

The vestibular-evoked myogenic potential (VEMP) is expected to be one of the examinations for saccular function. We report a case of dysequilibrium possibly due to a saccular disorder. A 27-year-old female came to our clinic complaining of severe recurrent dysequilibrium spells for few hours on September 21, 1998. The first attack was only vertigo with bilateral tinnitus for 8 days before. She did not show possible vestibular findings on a routine vestibular test. An electrochochleogram showed the dominant negative summating potential (SP) on both sides, and the furosemide test showed negative findings on both sides. A VEMP test indicated a low amplitude in the right ear, which improved to the normal response after furosemide injection. The amplitude was increased by furosemide administration even in the left ear. These findings suggested bilateral endolymphatic hydrops in the cochlea and saccule especially on the right side. The VEMP test may reveal saccular hydrops, which differs from the conventional Ménière type vertigo.

Adult↗