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Biomedical subjects

K Nishimura

Publications and source records attributed to K Nishimura.

At least 1,207 records · Page 67Linked to original sources
PubMed1978

Real time observation of left ventricular aneurysm by B mode echocardiography.

This paper describes two cases of left ventricular aneurysm following myocardial infarction by real time B mode echocardiography with a mechanical sector scan. The most distinctive feature was the paradoxical movement of the aneurysmal wall; in systole, it moved posteriorly to form a bulge, whereas the remaining noinfarcted area was oriented toward the left ventricular cavity in contraction. The final diagnosis was verified by aneurysmectomy.

Adult↗
PubMed1978

Origin of the basal systolic murmurs in mitral stenosis. A study with intracardiac phonocardiography.

In order to study the origin of the basal systolic murmurs in mitral stenosis, left and right heart catheterization was performed in 18 patients with mitral stenosis using intracardiac phonocardiography. Our data revealed that the basal systolic murmurs originated in the aorta, the pulmonary artery, and the outflow tract of the right ventricle. In 14 cases, we noted the maximal ejection systolic murmur in the aorta near the aortic valve. However, in two cases, there was a loud systolic murmur in the pulmonary artery. These murmurs occurred in early to mild-systole and were crescendo-decrescendo in configuration. The pitch of the murmur ranged from low to medium frequency in the majority of cases. They are produced by the turbulence of blood flow in the aorta and the pulmonary artery. A late systolic murmur was also recorded in the outflow tract of the right ventricle in two patients. This is thought to occur due to functional or relative infundibular stenosis of the right ventricle. It differs in location and timing from those in the aorta and the pulmonary artery. The outflow tract of the right ventricle is regarded as the third origin of the basal systolic murmur in mitral stenosis.

Adult↗
PubMed1978

Sedimentation cytology in central nervous system leukaemia with a new simple apparatus.

The clinical usefulness of a newly devised, simple apparatus, the Nishimura fluid sedimentation chamber, is described. The latter consists of an open-ended plastic tube, an absorbent paper with a central hole, and a glass slide which are stuck to each other with double-sided plastic adhesive tape with a central hole of equal size. The chamber is set to allow 0.5 ml of cerebrospinal fluid (CSF) to be absorbed in 15--20 min. The principle of the sedimentation relies on the absorption of the fluid portion into the absorbent paper with the cellular elements sedimented onto the glass slide. Thin stationery paper is used as the absorbent material which controls sedimentation speed and minimizes cellular loss. 190 CSF specimens obtained from 28 patients with acute leukaemia were processed by this method. The results obtained showed that sedimentation using this simple chamber is quite reliable for the recognition of small number of abnormal cells in the CSF producing little or no noticeable cellular damage. This technique may be applied to other clinical situations in which fluid cytology is useful in establishing a diagnosis or in evaluating clinical progress.

Acute Disease↗
PubMed1978

Hepatoma development during long term follow-up period of liver cirrhosis.

An attempt was made to elucidate the pathogenesis of hepatoma. The material comprises 20 cases which were followed up more than 3 years after diagnosed liver cirrhosis and verified by autopsy. Hepatoma was found in 10 out of these 20 cases (50%). The follow-up period of these 10 cases with hepatoma was from 3 to 9.5 years (the mean value; 5.5 years). All 10 cases were not heavy drinkers, and showed liver cirrhosis of the mixed type by autopsy. HBsAG was positive in 6 out of 8 cases by RIA method (75%), and alpha-f was also detected in 5 of 7 cases by RIA method (70%). On the contrary, only 2 out of 10 cases without hepatoma were HBsAG positive (20%). The present results indicate that HBsAG positive liver cirrhosis of the mixed type is closely related to hepatoma in our country.

Adult↗