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Biomedical subjects

N Oka

Publications and source records attributed to N Oka.

At least 253 records · Page 14Linked to original sources
PubMed1979

[Cerebral infarction due to vasospasm following intracranial aneurysm rupture (author's transl)].

We have made an investigation of the 827 cases of ruptured saccular cerebral aneurysms operated on and 151 of them presented infarction attacks thought to be due to vasospasm brought about by aneurysm rupture. Based upon symptoms, angiography and surgical findings, an analysis was made of their age, sex and aneurysm location so related to incidence of infarction, period from the initial or last rupturing until time of infarction, indication of vasospasms from angiographical findings, and symptoms of infarction. Infarction occurs only between the fourth and fifteenth days following the last bleeding and in this period there was a high incidence of rebleeding, so that the current conception of reattack following cerebral aneurysm rupture must be updated in light of the fact that the therapy for rerupture and the therapy for infarction due to vasospasm are completely different.

Adult↗
PubMed1978

[Oculomotor palsy caused by aneurysms at the internal carotid-posterior communicating artery junction and its prognosis following intracranial surgery (author's transl)].

Sixty-three cases of an aneurysm at the internal carotid-posterior communicating artery junction with aneurysm-induced unilateral eye-lid ptosis, a symptom of the third nerve palsy, were described. 1) The incidence of this palsy in 189 cases of the aneurysm was thirty-three percent. 2) The palsy before the aneurysm rupture was recognized in three cases (5 percent). The onset of this palsy following an aneurysm rupture was most frequent in the first day and in almost half of the patients within two days, but in four cases the palsy appeared three or four weeks after the aneurysm rupture. 3) The size and direction of the growth of the aneurysms in carotid angiograms were compared between palsy and non-palsy groups and there were no significant differences between them. 4) Thirty-one patients who had had a palsy before direct aneurysm surgery were followed one to ten years post-operatively. In twenty-three (74 percent), the unilateral eye-lid ptosis was recovered by the follow-up. In eleven of the twelve cases operated within two weeks after the onset, the palsy was recovered. On the other hand, in seven of eight not-recovered cases there was a delay of more than two weeks before operation.

Blepharoptosis↗
PubMed1978

[Hartnup disease].

Explore the source record for details and available documents.

Hartnup Disease↗
PubMed1976

Clinical characteristics of the carcinoma of the stomach and its localization.

The result of follow-up study and the localization of gastric carcinoma subjected to the operation at the Second Department of Surgery, Faculty of Medicine, Kyushu University during 7 year period from 1963 to 1969 form the basis of the present communication. The curative resectability was 70.3 per cent in the carcinoma of the distal third of the stomach (A), 82.9 per cent in that of the middle third (M) and 55.3 in that of the proximal third (C); the 5-year survival rate was 48.6 per cent in the cancer of A, 81.1 per cent in that of M and 49.1 per cent in that of C respectively. In the carcinoma of A incidence of high grade penetrative invasion into the gastric wall as well as metastatic involvment was high. It is noteworthy that the tendency of the metastasis was found even in those with low grade penetration. In the carcinoma of M the incidence of high grade penetration as well as lymphatic metastasis was relatively low. The hepatic metastasis and peritoneal dissemination was also not frequent. In the carcinoma of C the incidence of high grade penetration was very high and the lymphatic metastasis was frequently observed in those with high grade penetration. Biological characteristics of the carcinoma of the stomach in each location and their therapeutic significance are discussed.

Follow-Up Studies↗
PubMed1976

Abdominal aneurysm with aortoduodenal fistula.

Two patients having the abdominal aneurysm with aortoduodenal fistula were treated surgically, but graft infection occurred. One patient died about 6 months after and the other about one year after the operation due to massive hemorrhage from the postoperative aortointestinal fistula. The difficulties in the treatment of the aortoduodenal fistula were discussed.

Aorta, Abdominal↗