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Biomedical subjects

Y Horie

Publications and source records attributed to Y Horie.

At least 217 records · Page 12Linked to original sources
PubMed1982

[Orbital neurilemmoma originated from the supraorbital nerve: case report].

The patient, 41 years old, female, was admitted to our hospital with the chief complaint of the progressively increasing painless swelling of the right eye. On examination, the right eye slightly protruded compared with the left and upward movement of the right eye was limited. Skull x-ray film (posteroanterior) showed a dome-shaped expansion in the roof of the right orbit. Orbital venogram showed inferior and medial displacement of the P1 and P2 portions and the second segment of the superior ophthalmic vein. CT scan in coronal view showed a tumor in superior par of the right orbit. Operation was performed by subfrontal approach. It was noticed that the supraorbital nerve entered the tumor. The mass, 5 g in weight, was successfully removed. Pathologically, the diagnosis of neurilemmoma was made. Postoperatively, the proptosis diminished and the ocular movements became normal in all directions. Neurilemmoma of the orbit is an uncommon tumor, accounting for only 1.7-5.6% of all orbital tumors. Identifying the original nerve of the tumor has been even rarer. Including this case, there have been only 8 individually reported descriptions. In three cases the tumor originated from the supraorbital nerve, in three cases from the ciliary nerve, in two cases from the infraorbital nerve.

Adult↗
PubMed1981

CT findings in a case of neonatal acute subdural hematoma.

The CT findings in a case of neonatal acute subdural hematoma are presented. CT demonstrated a crescentic high density area in the subdural space over the left cerebral hemisphere and an oval high density area in the left occipital region. The latter was suspected of being an intracerebral hematoma. Emergency craniotomy revealed that the high density area was due to a subdural hematoma between the occipital lobe and the tentorium cerebelli.

Cerebral Hemorrhage↗
PubMed1981

[A case of acute subdural hematoma in one-day-old baby--with special reference to its CT findings (author's transl)].

The authors describe and discuss a case of acute subdural hematoma originating from the lacerated tentorium of 22 hour-old newborn. CT scan revealed crescent high density area in the subdural space between the left frontal area and the occipital area. Another high density area was seen in the left occipital area which was suspected as intracerebral hematoma preoperatively because of its rather intramedullar location. Large craniotomy was performed 22 hours after delivery, evacuating 70 gm subdural hematoma. Bleeding point was determined as lacerated tentarium about 1 cm length. No intracerebral hematoma was found. Postoperative course was uneventful and he is showing normal development. It is now concluded that supratentorial subdural hematoma originating from tentorial laceration at delivery could be misdiagnosed as intracerebral hematoma on CT scan. Anatomical structure should be always compared when CT scan study is performed.

Acute Disease↗
PubMed1981

[An anterior communicating artery aneurysm complicated by chronic subdural hematoma--a case report (author's transl)].

A 53-year-old housewife was admitted to the Department of Neurosurgery, Toyama Medical and Pharmaceutical University on June 6, 1980, because of disorientation, urinary incontinence and left hemiparesis. She had experienced "a fit of severe headache" many times for five years. On May 12, 1980, she experienced an abrupt, severe headache in a lavatory and was immediately brought to a nearby hospital. Her symptom was recovered gradually for a week but she experienced sudden onset of severe headache again on May 20. Subsequently, her state of consciousness gradually worsened and left sided hemiparesis arose. On admission, cerebral angiograms revealed an aneurysm of an anterior communicating artery and a subdural hematoma over the right hemisphere. On the third hospital day, radical operation was performed by bifrontal craniotomy. Neck of aneurysm was ligated and clipped successfully and dark brownish semiliquid contents of chronic subdural hematoma was evacuated. The lacerated portion of arachnoid with some distance from the aneurysm was observed and subarachnoid hemorrhage was thought to enter subdural space through this portion. Post-operative course was uneventful. Nine cases of intracranial aneurysms complicated by chronic subdural hematoma were reported previously, but an anterior communicating artery aneurysm case was not in these cases. We have some discussion about cerebral aneurysms complicated by chronic subdural hematoma, especially about the pathogenesis of chronic subdural hematoma.

Chronic Disease↗
PubMed1980

[Transdural anastomosis in moyamoya disease--vault moyamoy (author's transl)].

Transdural anastomosis in Moyamoya disease, which we have named as "Vault Moyamoya", is reported. It seems that these vault moyamoya vessels are apt to be developed at certain fixed positions; 9 definite places in children cases 6 in adults. Main feeding arteries of each vault moyamoya are dural arteries. In addition to them, the blood flow from STA and OA is found. The incidence of vault moyamoya at each position shows similar tendency both in children and adults cases. Vault moyamoya are developed more frequently around the base of the brain near the carotid fork, where occlusion exists. Less moyamoya are formed as the position is farther from the carotid fork. In children, the incidence of vault moyamoya seems to coincide with the phases of basal moyamoya. It is not clarified yet whether the adults vault moyamoya are straightly inherited from children vault moyamoya. Blood flow from vault moyamoya to the brain cannot be ignored. When STA-MCA anastomosis is applied to moyamoya cases, we had better take the degree of development and positions of vault moyamoya into consideration, because we have to cut STA and MMA in the procedure.

Adult↗
PubMed1979

Measurement of local blood flow of the intestine by hydrogen clearance method; experimental study.

Local blood flow of the bowel wall was measured by hydrogen clearance method both in the muscular and submucosal layers in the mongrel dog, separately and concurrently. A platinum wire electrode with a bare tip of 0.5 mm in length and 0.2 mm in diameter was inserted into the each layer. About 10 per cent hydrogen gas was inhalated directly through the side hole attached to the endotracheal tube for 1-2 minutes and the obtained clearance curves were plotted on the semi-logarithmic scale, which was almost monoexponential. The results obtained were as follows: 1) Mean basal perfusion rate of the muscular layer of the intestine was 0.81-0.92 ml/min/gm, whereas that of the submucosal layer was 1.29-1.31 ml/min/gm, respectively. There was little difference of perfusion rates between the small and the large intestine. The results showed good correlationship with those reported by other authors. 2) The effect of vasoactive substances such as vasoconstrictor and vasodilator on the local blood flow in the bowel wall was confirmed. 3) This method is repeatedly applicable for measurement and also renders the information on the distribution of blood flow in the splanchnic area.

Animals↗