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J H van der Drift

Publications and source records attributed to J H van der Drift.

17 recordsLinked to original sources
PubMed1987

Low-dosage treatment in de novo patients with Parkinson's disease: a prospective study.

In 68 younger de novo patients with the hypokinetic-rigid type of PD the action of bromocriptine, Sinemet, a combination of these drugs, and orphenadrine with additional bromocriptine or Sinemet medication was investigated over at least a 6-year period. The favorable reaction on Sinemet medication was complicated by the occurrence of dyskinesias in the majority of cases as contrasted with the bromocriptine group. Dyskinesias were mild and not prominent in the combined group. In the sixth year, it appeared necessary to increase the dosage in the first three groups. Temporary complete replacement after 5 years of Sinemet by bromocriptine caused a clinical deterioration, whereas the dyskinesias did not (completely) disappear. Both drugs markedly improved the hypokinesia in the orphenadrine group. The results in the old-age category (60 patients) without high vascular risk were comparable with those of the young patients. The same applied for those PD patients with high vascular risk, in whom the cerebral circulation could be restored. The final conclusion of this study can be formulated as follows: Primary multitherapy with low dosage bromocriptine and a levodopa preparation may be the therapy of choice. In case of high vascular risk, improvement of the cerebral circulation may be as important as treatment with anti-parkinsonian drugs.

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PubMed1974

[25 years of electroencephalography in cerebrovascular disease].

The value of the EEG has not been diminished by the advent of new diagnostic procedures and the improvement of older techniques. For electro-encephalography is in essence a 'clinical' method, reflecting in its own particular way, the variable status of the brain. Moreover, in conjunction with these methods the EEG can provide for better information concerning the brain's condition. Furthermore in particular serio-angiography and C.B.F. measurements can furnish us more detailed insight in the EEG phenomena which may occur in differed types of cerebro-vascular disease. Generally the changes of the local EEG phenomena, which may occur in cerebral ischaemia correlate well with the angiographic and r.C.B.F. data. In cerebral haemorrhage and cerebral tumour however the r.C.B.F. values are commonly more diffusely reduced as could be expected from the extent of the EEG disturbances. Increased r.C.B.F. values may be encountered over meningioma due to increased perfusion of the Xenon133 in this electrically inactive tumour; they can also occur in malign glioblastoma, where direct arterio-venous connections are responsable for the so called shunt peaks. These peaks may also be found in patients with arterio-venous malformations or with acute ischaemia, in the latter case due to marked reduction of the local pH. Remarkable was the discrepancy between the local increase of the C.B.F. and the local deterioration in the EEG following intracarotid injection of HC1 papaverine; the same applied to the reaction of EEG and C.B.F. in case of acute induced hypertension with loss of autoregulation.

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