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Biomedical subjects

M Kawauchi

Publications and source records attributed to M Kawauchi.

At least 163 records · Page 9Linked to original sources
PubMed1986

[Superficial temporal to superior cerebellar artery anastomosis for rostral brain stem infarction].

The authors report a case of superficial temporal to superior cerebellar artery anastomosis (STA-SCA anastomosis) for progressing rostral brain stem infarction with an excellent result. Precise operative techniques were also described. A 47-year-old male was admitted to our hospital on November 9, 1984, because of sudden onset of dysarthria and ataxic gait. CT revealed a low density area in the pons. Left vertebral angiogram showed occlusion of the left vertebral artery just distal to the origin of the posterior inferior cerebellar artery (PICA). Arterial branch of the left cerebellar hemisphere were filled via the left PICA to the left SCA and anterior inferior cerebellar artery anastomosis. Right brachial angiogram showed the hypoplastic right vertebral artery which ended at the PICA. The rostral basilar artery, both posterior cerebral arteries (PCA's) and right SCA were filled through anastomosis from the right PICA. The posterior circulation was not filled by either of the carotid arteries. In spite of antiplatelet agglutination therapy, the patient had two more episodes of dysarthria, dysphagia, right hemiparesis and gait disturbance. Because of progressing stroke, STA-SCA anastomosis was carried out on the right side on February 27, 1985. During operation, the blood pressure was maintained above the level of 130 mmHg, and intravenous mannitol injection and spinal drainage were done to preserve the right temporal lobe from intracerebral hematoma and/or edema caused by retraction. Postoperatively, the patient has been free from new ischemic attack. He has only slight hemiparesis now eight months after operation. Right external carotid angiogram showed a patent STA-SCA bypass and good filling of SCA's and PCA's bilaterally.(ABSTRACT TRUNCATED AT 250 WORDS)

Brain Stem↗
PubMed1985

Chronic meningitis with marked unilateral tentorial pachymeningitis.

Two cases of chronic meningitis with marked granulomatous thickening of the cerebellar tentorium are presented. The clinical features of both cases were those of chronic meningitis, namely, incessant chronic headache, long-lasting moderate increase of intracranial pressure, multiple cranial nerve involvement, slight lymphocytosis, and increased protein in cerebrospinal fluid. The characteristic finding on computed tomography scan was slight, high density of the unilateral cerebellar tentorium with marked contrast enhancement. Both patients died of complications, and necropsy revealed marked granulomatous thickening of the unilateral cerebellar tentorium. Although noninfectious disease was strongly suspected, the etiology could not be specified either clinically or by necropsy.

Adult↗
PubMed1985

Total cavopulmonary shunt with replacement of common atrioventricular valve for an infant with single atrium and single ventricle.

A 22-month-old male infant with single atrium, single ventricle, regurgitant common atrioventricular valve, pulmonary atresia, patent ductus arteriosus, and inferior vena cava defect with azygos connection was treated successfully with total cavopulmonary shunt and replacement of the common atrioventricular valve. The indications for total cavopulmonary shunt in the management of univentricular heart with azygos continuity are discussed.

Abnormalities, Multiple↗
PubMed1985

[Coronary sinus type atrial septal defect diagnosed by two-dimensional color Doppler echocardiography: a case report].

This is a case report of coronary sinus type atrial septal defect (ASD) diagnosed preoperatively by two-dimensional color Doppler echocardiography. A 22-year-old asymptomatic woman was admitted for preoperative cardiac evaluation. A cardiac murmur and cardiomegaly had been noted at a routine examination which included electrocardiography and chest radiography, and M-mode echocardiography suggested the presence of a secundum type ASD. Color Doppler echocardiography revealed a left to right atrial shunt flow through the coronary sinus ostium into the right atrium. By peripheral contrast echocardiography, a negative contrast echo from the coronary sinus ostium was observed within the right atrium and persistent left superior vena cava was excluded. At operation, a 2 X 3 cm defect was demonstrated at the interatrial septum in the vicinity of the coronary sinus ostium. This is the first reported case of a coronary sinus type ASD diagnosed preoperatively by color Doppler echocardiography.

Adult↗
PubMed1980

[Effect of tetragastrin on electrical and contractile activities of the canine stomach and duodenum (author's transl)].

The effect of tetragastrin on stomach and duodenum in conscious dogs was studied by using bipolar electrodes and strain gauges. (1) The basal electric rhythm interval of stomach and duodenum became short under the administration of gastrin and it's changes were the same in cases of fasting or feeding as well as medical vagotomy. Also the response was found to be dependent on it's dosage. (2) Gastrin had no constant effect on the propagation velocity of stomach. (3) The basal electric rhythm interval at maximum point of the shortening after the intramuscular injection of 4 micrograms/kg of gastrin, was roughly equal with the interval of animals having the continuous intravenous infusion 5 micrograms/kg/h of gastrin. The shortening of the basal electric rhythm interval was recognized for 60--90 minutes. (4) Gastrin changed the pattern of contractile activities of the stomach from that of a fasted condition to a regular contraction which is usually recognized after meals. The strength of regular contraction of the stomach was dependent on the dosage of gastrin. (5) The maximum driven frequencies were slightly reduced during gastrin stimulation, compared to normal stomach frequencies.

Animals↗