Biomedical subjects

S Mikata

Publications and source records attributed to S Mikata.

27 records · Page 2Linked to original sources

PubMed1994

[A left atrial appendage thrombus without mitral stenosis--a successful case of removal].

Successful thrombectomy for left atrial ball thrombus without mitral stenosis is presented. A 62-year-old man was admitted to our department because of intermittent claudication. Arteriography demonstrated complete occlusion in bilateral superficial femoral arteries, however, the arterial wall was much smooth, suggesting thrombo-embolism rather than arteriosclerosis obliterans. The transthoracic echocardiography revealed no abnormal lesion in mitral apparatus and in left atrial cavity. The bypass operation was carried out for arterial occlusion, when the intraoperative transesophageal echocardiography showed the ball thrombus in left atrial appendage. The urgent operation was successfully carried out on 14th postoperative day after bypass operation. The thrombus occupied almost all the left atrial appendage, and its size was 24 x 19 x 13 mm. The transesophageal echocardiography was useful in diagnosis for left atrial appendage thrombus. Once the diagnosis was made for large and movable left atrial thrombus, immediate surgical therapy should be recommended to avoid serious complications and sudden death.

Echocardiography, Transesophageal↗

PubMed1993

Stage IA non-Hodgkin's lymphoma of the Waldeyer's ring. Limited chemotherapy and radiation therapy versus radiation therapy alone.

Seventeen patients with stage IA non-Hodgkin's lymphoma of the Waldeyer's were treated with radiation therapy with or without chemotherapy. All lesions were judged as having intermediate grade malignancy in the Working Formulation. Eight patients received combined treatment with three cycles of cyclophosphamide, doxorubicin, vincristine and prednisone (CHOP) and radiation therapy with 30 to 40 Gy. Another 9 patients were treated with radiation therapy 40 to 60 Gy alone. After a median follow-up of 69 months, all 8 patients, treated with combined modality were alive and relapse-free, whereas 4 of the 9 treated with irradiation alone had relapsed. All relapses occurred trans-diaphragmatically. Two of the 4 relapsing patients were saved, but the other two died of the disease. The 5-year relapse-free and cause-specific survival rates were 100% and 100% in the combined modality group, and 56% and 76% in the radiation therapy alone group (relapse-free: p = 0.04, cause-specific: p = 0.16). There were no serious complications related to the treatment, although most patients complained of mouth dryness and most patients given CHOP had paresthesia. Our opinion was that the total impact of these two side-effects on quality of life was less pronounced after combined modality than after radiation therapy alone. Limited chemotherapy and radiation therapy seemed to be more beneficial than radiation therapy alone not only in relapse-free survival but also in quality of life after treatment.

Adult↗

PubMed1991

[A successful case of concomitant operation for coronary artery disease and rectal cancer in elderly patient].

We report a successful case of 75-year-old man who was simultaneously undertaken CABG for coronary artery disease and Miles' operation for rectal cancer. A concomitant cardiac and rectal operation involves serious problems, such as increasing operative risk, bleeding tendency after cardiopulmonary bypass, infection and radicality against malignancy, however, it should be a definitive method for the selective case.

Adenocarcinoma↗

PubMed1990

[Hepatocellular carcinoma with extrahepatic malignancies].

A clinical investigation of 16 hepatocellular carcinoma (HCC) patients with extrahepatic malignancies (13 male, 3 female) has been conducted. The age of these patients ranged from 55 to 76 years. Three of these double cancer cases were hemocronous, and 13 were heterochronous. The duration between the occurrence of the cancers ranged from 2 years and 4 months to 22 years. As for the site of the other cancer, the stomach was the most common organ (12 cases). In nine cases out of 16, the HCC was resected, whereas the other cases were treated with a TAE and hepatic artery ligation because the cancer were far advanced stages. Early detection of an HCC by AFP or an ultrasonographic examination, and a subsequent surgical resection in cases of a postoperative cancer patient with a liver dysfunction may lead to a more favorable prognosis.

Aged↗

PubMed1987