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Biomedical subjects

L Barraquer Bordas

Publications and source records attributed to L Barraquer Bordas.

29 records · Page 2Linked to original sources
PubMedDate not supplied

[Congenital neuromyotonia. Retrospective study of 4 cases].

BACKGROUND: Fasciculation, double discharge, myokymia and neuromyotonia are different kinds of involuntary muscular activity that originate in ectopic discharges of the motor axons. Electrophysiological studies are needed in all cases for the diagnosis. Non rigorous electrophysiological studies in some cases is the cause of the historically unclear nosological delimitation of the neuromyotonic syndromes. OBJECTIVE: To report the clinical picture and electrophysiological findings in patients with congenital neuromyotonia. PATIENTS AND METHODS: Four patients with congenital neuromyotonia were studied. Electrophysiological exam included nerve conduction measurements, study of the after-discharges and conventional EMG. Spontaneous discharges were displayed after applying a low pass filter, signal trigger and delay line. RESULTS: In one case positive motor features predominate (continuous muscle fiber activity). On the contrary, two cases, showed neuropathic deficitary signs with a Charcot-Marie-Tooth type II disease phenotype; neuromyotonia was, in both cases, an electrophysiological feature. In the last patient, motor signs were limited to the facial muscles but electrophysiological study discovered generalized neuromyotonia. Treatment with carbamazepine or oxcarbazepine was useful in the four cases. CONCLUSION: Congenital neuromyotonia is a clinically heterogeneous syndrome with uniform electrophysiological features that permit its qualification.

Adolescent↗
PubMedDate not supplied

[On the duality of the sign of fanning of the toes].

Starting from Babinski's original description, the author carries out a revision of semeiological value of the sign "fanning of the toes". It is considered that there are two clinical variants. The first, present in most cases of connatal encephalopathy, is due to involvement of the premotor area, which is usually accompanied by pyramidal, dystonic or athetoid signs. The second variant is present in cases of multiple sclerosis presumably attributable to involvement of the lateral spinal tracts including the reticulospinal one. The author proposes the need of using modern neuroimaging and electrophysiological techniques for further pathophysiological investigation of both clinical variants of the sign.

Brain Diseases↗
PubMedDate not supplied

[Depression in Parkinson's disease and its relation to the cognitive and motor manifestations].

Evaluation with the geriatric depression scale carried out in 30 patients with Parkinson's disease who did not present subjective complaint of loss of memory or impairment in superior mental function capable of interfering in daily routine showed a high frequency of depression of 50-70% depending on where the cut-off in the geriatric depression scale was located. Depression in these patients does not significantly relate with either cognitive impairment or the degree of motor incapacity. Neither were depression or anxiety in these patients related with demographic data such as the age of the patient, age at onset of the disease, sex, months of evolution, or education. In contrast, a positive correlation was found between depression and anxiety.

Activities of Daily Living↗
PubMedDate not supplied

[Hemiplegia in posterior cerebral artery infarctions: analysis of various responsible mechanisms].

When cerebral infarction determines hemiplegia or hemiparesia which accompany a hemilateral sensitive deficit and hemianopsia and even neuropsychologic symptoms (aphasic alterations in the case of injury to the left hemisphere, heminegligence and anosognosy in the case of injury to the right hemisphere) the involvement of a sylvian artery syndrome is usually considered. Nonetheless, recent contributions have reported that such symptoms may appear in infarctions of the territory of the posterior cerebral artery. Two clinical-radiologic observations in this line are presented. Nuclear magnetic resonance demonstrated injury to the posterior arm of the internal capsule in one case and in the other the lesion developed over three times, in the latter of which injury to the cerebral peduncle was produced causing hemiparesia. The authors emphasize that hemiplegia or hemiparesia in some infarctions of the posterior cerebral artery may be due to 1) mesencephalic infarction in the posterior plane of the retromamillar Foix and Hillemand pediculum (or G. Lazorthes interpedunculum), 2) infarction or "ischemic penumbra" in the internal capsule by involvement of any of the perforating branches of the posterior cerebrum irrigating the thalamus, except for the medial posterior choroid artery or even of the Foix and Hillemand thalamus-tuberian pediculum (or Lazorthes inferior and anterior) which principally initiates at the posterior communicating branch with a fragment of the posterior branch of the internal capsule perhaps not always being under its control. In this case, the thrombus occupying the posterior cerebrum may extend to the cited communicating branch or a hemodynamic deficit may be produced in the territory of the same.(ABSTRACT TRUNCATED AT 250 WORDS)

Aged↗