Biomedical subjects
Publications and source records attributed to H W Mauser.
The authors discuss the value of intravenous contrast enhancement in CT scanning in acute head injury. In a series of seventy consecutive patients they conclude that no incremental information was obtained by performing contrast-enhanced CT scans in the acute phase of the head injury.
The data of 48 patients with a subdural empyema, treated in the period 1946-1980, have been reviewed in order to evaluate factors that influenced the outcome. A delay in diagnosis and surgical treatment, plus a severe disturbance of consciousness at the moment of surgery, all had a negative bearing on the subsequent outcome. The mode of operation also had an influence on the outcome in this series. In those patients with a severely disturbed level of consciousness at the time of surgery, the outcome was more favourable if multiple burr-holes were performed rather than a craniotomy. In patients with a minor disturbance of consciousness, however, this difference was not apparent.
The authors describe a case of panmedullary ependymoma presenting with multiple cysts complicated by fatty deposits in the spinal cord from C6 to D2 as demonstrated by CT-scanning. To the authors' best knowledge the combination of these features have not been described previously. The radiological, operative and histological findings are discussed and compared with those of other panmedullary spinal cord tumours such as astrocytomas.
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We present two patients with an astrocytoma, involving the whole spinal cord. Operation was performed in both cases: one patient died because of complications after the operation, the condition of the other patient improved greatly. In the literature we could find three other cases of astrocytoma, extending into more than ten segments of the spinal cord. The clinical picture and the differential diagnosis with ependymomas of the same length are discussed.
Two patients are presented who during carotid endarterectomy (CEA) temporarily showed an obstruction of the middle cerebral artery (MCA) mainstem by a macroembolus resulting in cerebral ischaemia. Both cases are unusual examples of CEA and selected from a cohort of more than 1,500 operations. During surgery with general anaesthesia, brain function was monitored with computerized electroencephalography (EEG) and transcranial Doppler (TCD) ultrasonography. The simultaneous use of EEG and TCD monitoring allowed us to witness the development of intraoperative cerebral ischaemia and to relate these events to a temporary occlusion of the MCA mainstem by a macroembolus. This is the first life report that describes obstruction of a cerebral artery by arterial embolism resulting in cerebral ischaemia.