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Biomedical subjects

M Furuse

Publications and source records attributed to M Furuse.

At least 271 records · Page 15Linked to original sources
PubMed1979

[A case of spontaneous hematomyelia (author's transl)].

A case of spontaneous hematomyelia was reported with a review of the literature. A 39-year-old woman, with sudden onset of pain in her left neck and arm 13 days previously, presented with a progressive flaccid tetraplegia below C5, dissociated sensory loss from C7 through Th4 dermatome and a minimal deep sensory loss in her right leg. Myelography revealed a symmetrical enlargement of the spinal cord at the leve of C5, C6 and C7. Laminectomy was performed and intramedullary blood clot, which was located in the region of C6 and C7, was evacuated. However, there were no vascular anomalies not only in macroscopic findings but also in histological examination. The postoperative course was uneventful and the patient gradually improved in her motility. At 5 month' follow-up examination she continued to do well with a minimal sensory loss of all modalities below the level of C7. Report of 16 patients with spontaneous hematomyelia including our case have been reviewed. Incidence of spontaneous hematomyelia without vascular anomalies or hemorrhagic diathesis very rare, being found in only 4 cases. In cases with good outcome the intramedullary hematoma was found to be located below the lower cervical region and limited within 2 spinal segments in its extent. Good postoperative results were obtained in 5 out of 7 patients who received surgical intervention, suggesting an essential importance of early diagnosis and surgery.

Adult↗
PubMed1978

The use of pulmonary scintigraphy for endobronchial foreign bodies.

Pulmonary scintigraphy using 99mTc-MAA clearly demonstrated a perfusion defect in the entire left lung of an 11-month-old girl with endobronchial foreign body. Other initial examinations, including a chest roentgenogram, showed only minimal changes. Repeated pulmonary scintigraphy 24 hr after endoscopic removal of a peanut fragment from the left main stem bronchus demonstrated almost normal blood flow in the left lung. The well-known physiological explanation for diminished pulmonary blood flow due to endobronchial foreign bodies is as follows; alveolar hypoxia caused by hypoventilation due to bronchial check-valve obstruction leads to a pulmonary vasoconstriction with resultant diminution of the regional perfusion. Furthermore, the increase in alveolar pressure caused by bronchial check-valve obstruction may play a significant role in decreased pulmonary blood flow.

Arachis↗
PubMed1978

The analysis of the intracranial pressure by the concept of the driving pressure from the vascular system.

In order to understand the pathogenesis of intracranial hypertension, the intracranial pressure (ICP) has usually been studied with the concept of volumetric pressure. In other words, the ICP is held to derive from the volume of the intracranial elements (e.g., brain, blood and cerebrospinal fluid). In this paper, the authors propose a new concept of the so-called driving pressure and apply it to both clinical and experimental studies. The driving pressure (DP) consists of the combined pressure continuously exerted on the ICP by the arterial pressure (ADP) and venous pressure (VP) systems.

Adolescent↗
PubMed1978

Adrenoleukodystrophy. A correlative analysis of computed tomography and radionuclide studies.

A discrepancy in location of abnormality has been noted between computed tomography (CT) and radionuclide studies in patients with adrenoleukodystrophy (ALD). Radionuclide concentration occurs only in the periphery of the lesion or area of acute demyelinating process and no concentration is seen in the area af gliosis whereas gliosis appears as a low-density lesion in the CT scan. Forward migration of radionuclide uptake in the follow-up study is another characteristic feature of this disease.

Child↗
PubMed1978

[Surgical treatment of upper cervical chordoma (author's transl)].

Treatment of upper cervical chordoma is generally considered to be difficult one, because of serious troubles in supporting cranio-spinal junction after the surgery and at the recurrence. Clinical course of a 22-year-old man with chordoma originated from C2 vertebral body was reported, and the operation for such a condition were discussed with emphasis on the mode of craniovertebral fixation. Simple subtotal removal of the vertebral chordoma was carried out by posterior approach at the first operation. The second one was necessary fourteen months later for recurrence of the tumor. At the second surgery, in addition to the tumor removal, posterior fusion between the occipital bone and the C4 lamina was performed with homologous iliac bone graft, the center of which was kept slightly lateral to the lesion. This procedure of fixation not only enabled a sufficient removal of the residual tumor without loosening the bone graft, but also shortened the bedridden time following the subsequent operations for the recurrence, and finally resulted in an excellent recovery in his clinical symptoms. It is considered to be important to select the most adequate approach of surgery, including fixation technique, according to the extension of the tumor. We would emphasize the usefulness of paramedian posterior fusion of the cranio-spinal junction for such a condition of wide tumor invasion in the high cervical region.

Adult↗
PubMed1978

[Measurement of ventricular fluid pressure and brain tissue pressure in acute experimental communicating hydrocephalus (author's transl)].

Malabsorption of cerebrospinal fluid was made experimentally by the administration of neutral carbon black suspension into the lateral ventricles of 22 adult cats. The compartmental analysis of intracranial pressure at the intraventricular fluid and tissue pressure in the cerebral white matter was carried out in the early stage of the communicating hydrocephalus. Following results were obtained: 1) Cerebrospinal fluid pressure from the lateral ventricle was always significantly higher than that from the brain tissue during the process of ventricular expansion. 2) Water content in the cerebral white matter was correspondingly increased when the pressure difference with greater value in ventricular fluid pressure was maintained. However tissue water content was decreased definitively when such pressure values at two compartments were equalized due to augment of the tissue pressure component. 3) Decreasing of cerebral blood flow demonstrated in spite of relatively higher value of cerebral perfusion pressure. From these findings the authors speculated that a higher pressure in the ventricular system will be a driving force, by which the enlargement of ventricular system was induced.

Animals↗
PubMed1977

Orthopantomography of the cervical spine.

The authors describe the application of orthopantomography to study of the intervertebral foramina of the cervical spine in patients with cervical spondylosis. Other structures such as the lateral mass of the cervical spine can be studied by altering the speed of the rotating film holder, which in two changes the width of the arch of the focal layer.

Cervical Vertebrae↗