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Biomedical subjects

A Okayama

Publications and source records attributed to A Okayama.

At least 145 records · Page 8Linked to original sources
PubMed1987

Improved prognosis after coronary thrombolysis with urokinase in acute myocardial infarction.

The effectiveness of coronary thrombolysis with urokinase (UK) on short- and long-term outcome after acute myocardial infarction was studied by comparison of 120 patients treated with UK and 124 with conventional therapy followed up for a period of 20 months. UK was administered to patients within 6 hours of the onset of chest pain, by the intracoronary route (20,000 U/min, at a mean dose of 698,000 U) in 46 patients, intravenously (960,000 to 1,920,000 U in 15 or 30 min, at a mean dose of 1,293,000 U) in 56 patients and by the combined route (at a mean dose of 2,333,000 U) in 18 patients. Complete occlusion or 99% stenosis with severe delay of the contrast medium was found in 72.5% and recanalization by UK was achieved in 68.0%. Cumulative mortality rate was significantly reduced in the UK group (9.2% vs. 29.0%). Cardiac death from recurrent MI was also significantly reduced (2.5% vs. 10.5%). The reduction in mortality rate was demonstrated even in older patients as well as in those cases graded as severe according to the Killip and Forrester classifications. Thus, it is concluded that coronary thrombolysis with UK therapy improves the prognosis of acute myocardial infarction.

Adult↗
PubMed1986

Clinical analysis of 33 patients with adult T-cell leukemia (ATL)-diagnostic criteria and significance of high- and low-risk ATL.

The clinical characteristics of 33 patients with adult T-cell leukemia (ATL) are described. All patients were born and have lived in Miyazaki Prefecture (southwest of Japan). Because of a wide range of clinical presentations and courses, they were subdivided into 2 groups. In the high-risk group, patients presented with high white-cell counts (WBC greater than or equal to 20,000/microliter) and over 30% of abnormal lymphoid cells (18 patients) and hypercalcemia with a low percentage of leukemic cells (5 patients). In this group the median survival time was only 3 months despite various modes of treatment. In contrast, patients of the second group exhibited a low percentage of abnormal lymphoid cells (WBC less than 20,000/microliter and/or leukemic cells less than 30%) and had no hypercalcemia (8 patients). Their clinical course was chronic with a median survival of 8 months, regardless of modalities of treatment. Two patients went through a period when the number of circulating leukemic cells was low (less than or equal to 5%) before overt leukemia appeared. Other clinical features, signs, symptoms, routine laboratory data, serum anti-ATL-associated antibody, cell membrane markers and cytogenetic studies were similar to those observed in other districts of Kyushu island.

Adult↗
PubMed1985

Malignant lymphoma in the Miyazaki district: analysis of 237 biopsy cases.

Pretreatment biopsy specimens of 237 consecutive patients with malignant lymphoma, who presented to us from 1979 to 1982, were reviewed and reclassified. According to the new classification proposed by the Lymphoma Study Group of Japan (LSG), there were 226 patients with non-Hodgkin's lymphoma (NHL) which was further classified as diffuse lymphoma (216 cases), follicular lymphoma (4 cases), mycosis fungoides (4 cases), and others (2 cases). The 216 cases of diffuse NHL were subdivided into small cell (2 cases), medium-sized cell (71 cases), mixed (7 cases), large cell (92 cases), pleomorphic (40 cases), lymphoblastic (3 cases), and Burkitt's type (1 case) lymphoma. Cell surface marker studies using conventional methods were performed on 65 NHL patients, of whom 45 showed T-cell marker and 11 B-cell marker, and 8 had neither marker. The average survival periods were 13.1 mo for 107 patients with NHL, 27.9 mo for those with mycosis fungoides and 70.0 mo for 10 patients with Hodgkin's disease. Patients with adult T-cell leukemia survived for an average of only 5.5 mo. Histologically diffuse pleomorphic type had the worst prognosis. T-cell lymphoma appeared to have a poorer prognosis than B-cell lymphoma.

Adolescent↗
PubMed1985

[Multiple gastric carcinoma with a coexisting gastric carcinoid--report of a case].

A 54-year-old man was operated on for multiple gastric carcinoma. A carcinoid tumor was found within Borrmann 3 type adenocarcinoma (well-differentiated) through examination of the resected stomach. Another carcinoma was II c type, moderately differentiated. The carcinoid seemed to be so-called submucosal tumor on the cut surface. Histologically, the carcinoid showed a less-differentiated trabecular arrangement, which was classified as the Soga D type. Argyrophilic reaction was positive (Grimelius) and argentaffin negative (Masson-Fontana). Secretory granules were seen by electron microscopy. Carcinoid syndrome was absent, and postoperative assays of 5-HT and 5-HIAA were within normal range.

Adenocarcinoma↗
PubMed1983

Total body irradiation as a primary treatment for adult T-cell leukemia.

Adult T-cell leukemia (ATL) is an extremely difficult disease to treat. The median survival of patients with this disease has been reported to be only about 3 mo even with intensive treatment. We have treated five ATL patients (four males and one female, 42 to 72 yr of age) with total body irradiation (TBI). One patient who received 150 rad of TBI achieved complete remission and has been well without treatment for over a year. One hundred and thirty rad of TBI was administered to another patient, resulting in control of the leukocyte count at around 10,000/microliter and survival for 6 mo. Three patients received 100 rad of TBI. Only one of these patients has lived with leukemic cells for over a year without treatment. The other two patients relapsed rapidly and despite various kinds of treatment, such as a second course of TBI, extracorporeal irradiation of the blood, cytapheresis and combination chemotherapy consisting of pepleomycin, vincristine and a high dose of prednisolone, expired from pneumonia in 3 and 4 mo respectively. In all except the last two patients, thrombocytopenia and anemia developed and lasted for 2.5 wk to 3 mo and granulocytopenia occurred only in the patient who received 150 rad of TBI. Slight nausea and loss of appetite were noticed in one patient. It seems that 100 to 150 rad of TBI is effective against ATL, with acceptable side effects.

Adult↗