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Biomedical subjects

T Irino

Publications and source records attributed to T Irino.

At least 37 records · Page 2Linked to original sources

Cerebellar infarction with obstructive hydrocephalus.

The authors review 15 patients with acute cerebellar infarction accompanied by obstructive hydrocephalus. These patients were among 1700 consecutive patients with acute cerebrovascular disease who were examined by angiography and also, except for the initial 320 cases. by computerized tomography (CT) scan. The CT scans were helpful in diagnosis and management of the patients. It demonstrated cerebellar mass lesions as being low density, isodense, or high density, according to the amount of hemorrhage into the infarcted area. Such cerebellar mass lesions caused acute compression of the posterior fossa. The clinical picture was determined mainly by the extent of the initially infarcted area in the vertebrobasilar territory and the speed of enlargement of the subsequently developing cerebellar mass lesion. Suboccipital decompressive surgery was performed in 10 patients and was generally beneficial. The postoperative prognosis depended mainly on the presence or absence of coexisting brain-stem infarction. Five patients who were managed conservatively died during the acute stage. Prompt and correct diagnosis of this illness is required to ensure adequate therapy.

Adult↗

Enlargement of intracerebral haematomas following surgical removal of epidural haematomas.

Postoperative follow-up computerized tomographic (CT) scans were performed in 16 cases of acute epidural haematomas to assess the efficacy of surgical treatment. Particular attention was paid to postoperative intracerebral haematomas that were detected in four cases on the preoperative CT scans. The intracerebral haematomas were found to have enlarged in all four cases on CT scans performed immediately after removal of the epidural haematomas. In the other 12 patients in whom no apparent abnormalities other than epidural haematomas were detected on preoperative CT scans, postoperative CT scans did not show development of intracerebral bleeding. The results indicate that bleeding may be encouraged in areas of intracerebral haemorrhage when coexisting epidural haematomas are evacuated. The possible pathophysiology of enlargement of intracerebral haematomas after decompression is discussed.

Aged↗

Semiquantitative evaluation of ophthalmic collateral flow in carotid artery occlusion: ultrasonic doppler study.

The reliability of quantitative evaluation by doppler ultrasound with regard to the ophthalmic collateral blood flow in patients with carotid artery occlusion was estimated. The ultrasonic doppler flow signals of the ophthalmic collateral flow of 54 carotid occlusions were classified into four types and three degrees--high, moderate, and low reversed flow patterns--and were compared with the angiographic findings of the collateral flow classified into three grades--good, poor, and none. With the exception of three cases, the ultrasonic doppler flow patterns of the collateral flow correlated well with the angiographic findings in 54 occluded carotid arteries.

Carotid Artery Thrombosis↗

Angiographic manifestations in postrecanalized cerebral infarction.

In 14 stroke patients showing angiographic recanalization of the occluded internal carotid artery or middle cerebral arterial axis, the postrecanalized angiograms demonstrated several findings that have been considered to be generally rare in cerebral infarction. These findings principally consisted of narrowing of arterial caliber in six cases (43 percent), mass effect in eight cases (57 percent) and capillary blush in five cases (36 percent).

Aged↗