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Biomedical subjects

R Minda

Publications and source records attributed to R Minda.

8 recordsLinked to original sources

[Surgical treatment possibilities in cerebrovascular insufficiency--status and future prospects].

After a short synopsis of the at present ascertained knowledge of the anatomy and pathophysiology of the cerebral blood supply the possibilities of the vascular-surgical treatment are discussed. The desobliteration of extracranial vessels, PTA, vascular resections and appliances of bypass are no concurrent operation techniques, but such ones which are individually to be adapted. The importance of the clinical and non-invasive diagnostics is put before the digital subtraction angiography and the direct angiography. On the basis of the experience of 461 own surgical interventions the stage-conditioned diagnosis is required. Stage II of the transitory ischaemic attack is preferred. In unilocular mediastenoses the extra-intracranial anastomosis now as ever hat its qualification.

Brain Ischemia

[Primary melanoblastoma as a cause of occlusive hydrocephalus].

Primary melanoblastomas of the Central Nervous System are comparatively rare tumors. Lumpy or diffuse forms may occur either alone or in combination. On the basis of actual case histories, diffuse cerebral and medullary melanoblastoma is presented as a rare cause of occlusive hydrocephalus.

Brain

[Injuries of the basilar artery].

In 2 to 3 per cent of the severe craniocerebral occlusions of the cerebral basic arteries are observed. Traumatic vertebralis and basilaris thromboses are very rare. In view of the modern procedure in diagnostics and therapy the prognosis of these life-threatening traumatic consequences are not infaust. According to a casuistic information pathophysiology, diagnostic procedure and therapeutical possibilities, microsurgical or by local fibrinolysis, are discussed.

Adult

[Correlation between clinical and paraclinical findings in brain tumors in comparison with the operation site].

On the basis of clinical material consisting of 147 brain tumors, the authors carry out a comparative investigation involving the site of the ensuing operation to ascertain the accuracy of the clinical and paraclinical diagnoses. Computed tomographic findings were deliberately excluded with the intention of focusing on the accuracy attainable by traditional means. Clinical findings, X-ray examination of the skull, ophthalmological findings, electroencephalographic and echoencephalographic data, nuclear diagnosis, and angiographic findings were all taken into account.

Brain

[Late results following treatment of peripheral nerve injuries of the upper extremity].

The authors re-examine cases of complete peripheral nerve injury of the upper extremity. Motor activity and sensibility assessment make use of Highet's scale. Some general principles of surgical treatment of peripheral nerve injuries are presented and individual factors which influence its results are worked out, e.g. moment of diagnosis, kind of nerve suture, moment of operation, age of patient, grade of injury, concomitant injuries, and length of graft. Conclusions are drawn for the concept of treatment.

Adolescent

[Delayed encephalopathy].

A specific clinical course of light covered craniocerebral traumas patients, corresponding to 2 per cent of all clinically treated craniocerebral traumata. Twilight states and transient neurological and ophthalmological symptoms characterise the clinical picture. The prompt reversibility of the symptoms indicates a functional damage requiring a differential-diagnostic consideration of morphological sequelae of traumas, for which instrumental diagnostics and, if required, surgical consequences are necessary.

Accidental Falls

Mitochondrial respiratory function as indicator of the ischemic injury of the rat kidney.

The function of mitochondria was considered to be an indicator of ischemic injury of the rat kidney, and the respiration of isolated mitochondria was measured in different metabolic states. The respiratory control index (RCI) was chosen as a parameter of mitochondrial intactness. The results indicate that normothermic in vitro ischemia leads to a rapid decrease of RCI and an almost complete loss of respiratory control within 45 min. Hypothermia during ischemic exposure proved to be an effective protection against mitochondrial injury as indicated by a prolonged coupled respiration and an RCI of about 2, even after 24 h of ischemic kidney storage. The ischemia-induced decrease of RCI was mainly due to a progressive decrease of active-state respiration, whereas the alterations of resting-state respiration were only small. The decline of active-state respiration was paralleled by a decrease of an uncoupled respiration rate. After termination of in vivo ischemia the RCI increased very slowly. Normal RCI values were not obtained until 7 days after onset of blood reflow, which supports the assumption of long-term damage due to ischemia.

Adenosine Triphosphate