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Biomedical subjects

L Wiart

Publications and source records attributed to L Wiart.

28 records · Page 2Linked to original sources
PubMed1998

Botulinum A toxin treatment for detrusor-sphincter dyssynergia in spinal cord disease.

We studied the efficacy of endoscopic injection of Botulinum A toxin (150 I.U. Dysport) in the treatment of detrusor-sphincter dyssynergia in 17 patients with spinal cord disease. One month after the injection, the postvoiding residual urine volume (-176 ml, P < 0.001), the bladder pressure on voiding (-19 cm water, P < 0.01), and the urethral pressure (-24 cm water, P < 0.001) were significantly decreased. The modality of voiding was improved in 10 patients (i.e. micturition by suprapubic tapping was easier to induce, discontinuation of indwelling catheter use, or decrease in frequency of intermittent catheterizations). The tolerance of the treatment was excellent. The therapeutic effect lasted 2 to 3 months on the average. The low doses used in this study probably explain in part why the treatment sometimes failed. Botulinum A toxin could become an alternative treatment for detrusorsphincter dyssynergia in certain patients, notably in those who are refractory to sphincterotomy or in patients, such as those who are tetraplegic, and who are incapable of performing intermittent self-catheterization.

Adult↗
PubMed1997

Unilateral neglect syndrome rehabilitation by trunk rotation and scanning training.

OBJECTIVE: Assessment of a new rehabilitation method for unilateral neglect syndrome (UNS), using a specific device (Bon Saint Come's device) that associates exploratory reconditioning with voluntary trunk rotation. DESIGN: Study 1, randomized control trial during 2 months; study 2, nonrandomized control trial during 2 months. SETTING: Neurorehabilitation units in private and public center. PATIENTS: In study 1, 22 consecutive patients with UNS resulting from recent stroke (< 3 months) were randomly assigned to an Experimental Group (11 patients) or to a Control Group (11 patients). The 2 groups were very similar in terms of general and neurological data. In study 2, 5 consecutive patients with chronic UNS resulting from an old stroke (> 6 months) showing the same characteristics were included. INTERVENTION: In study 1, patients in Group E followed the experimental program 1 hour a day for 1 month (20 hours) and Group C followed usual neurorehabilitation during the same time. In study 2, every patient followed the experimental program 1 hour a day for 1 month (20 hours). MAIN OUTCOME MEASURES: Assessment in both studies was done at day 0, day 30, and day 60 using a battery of UNS tests (Albert, Scheckenberg, bell) and an activities of daily living (ADL) test (the Functional Independence Measure [FIM]). Mean scores of each test were compared between the 2 groups with the Wilcoxon nonparametric test. RESULTS: In study 1 all UNS test results and the FIM improved significantly more in Group E than in Group C. In Group E, UNS disappeared in 5 patients and improved in 6. In Group C, UNS disappeared in 1 patient, improved in 4, and was unchanged in 6. In Study 2, UNS remitted in 2 patients, improved in 2 patients, and was unchanged in 1. CONCLUSION: The Bon Saint Come method seems to significantly improve recent and chronic UNS, as well as ADL function. These encouraging results could have resulted from a synergistic effect of spatial reconditioning and voluntary trunk rotation. It must be assessed by a new study with more patients.

Activities of Daily Living↗
PubMed1997

[Post-cerebrovascular stroke depression].

Post-cerebrovascular accident depression (PCVAD) affects 30 to 50% of hemiplegic patients in the first two years post-CVA, and has major physical and social repercussions. Particularly closely studied since the beginning of the eighties, PCVAD is considered a therapeutic entity in its own right by many authors. The clinical picture is one of melancholia in 5 to 25% of cases, and of minor or masked depression (with psychomotor retardation and somatic disorders predominating) in 75 to 95% of cases. Etiopathogenesis varies depending on post-CVA period: during the first few months, the depletion of intra-cerebral neurotransmitters is considered to play a dominant role; subsequently, difficulty in coping with the handicap would appear to be the main factor. The diagnostic scales which may be used are CIM 10 or DSM IV. For quantification, Hamilton's, the MADRS, Zung's or the CESD scales may be used. There is as yet no scale specific to PCVAD. The therapeutic approach still remains empirical, due to the rarity of published studies. Tricyclic antidepressants and inadvisable as first-line treatment due to their anticholinergic effects. Serotoninergic agents are well tolerated, but their efficacy is currently insufficiently documented, despite a recent study. Electroconvulsive therapy (ECT) has been tried, with a certain degree of success, by some authors, but no controlled study is currently available. Personal and familial psychological management would appear necessary but this has not yet been validated. In a preliminary, open-label study in 15 patients presenting with PCVAD, the authors obtained normalization of the MADRS in 10 cases following 6 weeks of treatment with fluoxetine (Prozac). No adverse effects were observed. A multicenter, controlled study is currently ongoing in Bordeaux, France.

Antidepressive Agents↗
PubMed1996

Effects of central dopaminergic stimulation by apomorphine on swallowing disorders in Parkinson's disease.

Swallowing disorders are common in Parkinson's disease but are of obscure and complex nature and pathophysiology. The effect of central dopaminergic stimulation on disordered swallowing is not well known. We studied the effects of apomorphine (in combination with domperidone) on buccolinguofacial motoricity and on various swallowing stages by using videofluoroscopy in eight patients with dysphagia. Swallowing abnormalities more frequently encountered were vallecular stasis (n = 7), fragmentation of the bolus (n = 7), and buccal stagnation of the bolus. Apomorphine improved vallecular stasis and fragmentation in about half the cases and improved buccal stagnation in all cases. Direct laryngeal penetration was found in three cases and improved in two of them. The total swallowing duration was improved by apomorphine in a subset of patients (n = 5). This improvement correlated with an improvement of the buccolinguofacial motoricity and was combined with an improvement of pharyngeal transit time. Thus central dopaminergic stimulation by apomorphine improved swallowing in a subgroup of patients, mainly in its early stages.

Aged↗
PubMed1996

A randomised, double blind, placebo controlled trial of botulinum toxin in the treatment of spastic foot in hemiparetic patients.

OBJECTIVE: To confirm the apparent effectiveness of botulinum toxin (BTX) in hemiparetic patients with ankle plantar flexors and foot invertor spasticity. METHODS: Twenty three hemiparetic patients with spasticity of the ankle plantar flexors and foot invertors were included in a randomised double blind, placebo controlled study with BTX. Patients were examined on days 0, 30, 90, and 120 and received one injection of BTX and one of placebo in a random order at day 0 and day 90. RESULTS: Patients reported a clear subjective improvement in foot spasticity after BTX (P = 0.0014) but not after placebo. Significant changes were noted in Ashworth scale values for ankle extensors (P < 0.0001) and invertors (P = 0.0002), and for active ankle dorsiflexion (P = 0.0001). Gait velocity was slightly but not significantly (P = 0.0731) improved after BTX injections. The severity of spasticity did not modify treatment efficacy, but BTX was less effective in patients with longer duration of spasticity (P = 0.0081). CONCLUSION: The efficacy of BTX injections in the treatment of spastic foot suggests that BTX may be particularly useful during the first year after a stroke.

Adult↗
PubMed1995

Restoration of gait by functional electrical stimulation for spinal cord injured patients.

In this clinical study, we report the results of functional electrical stimulation for the ambulation of paraplegic patients without long leg braces (LLB), according to the Parastep approach. Of 13 SCI patients with complete neurological lesions included in this trial, 12 progressed to independent ambulation with the aid of the Parastep. The average walking distance was 76 m, with a maximum of 350 m, and the mean speed 0.2 m s-1. Compared to the situation with long leg braces, which in fact are given up by most paraplegic patients, long term home use seems to be much more important. Tolerance of this method is satisfactory. The psychological benefits of the device are remarkable. From this experience, it is concluded that this method is valuable for the restoration of standing and walking in the long term management of spinal cord injury patients.

Adolescent↗
PubMed1995

Propriospinal myoclonus in tetraplegic patients: clinical, electrophysiological and therapeutic aspects.

Propriospinal myoclonus is a rare and relatively little studied complication of spinal cord injury. We report two patients with an extension-producing myoclonus presenting with tetraplegia caused by cervical trauma. Rhythmic extension jerks of the trunk and lower limbs appeared several weeks after their injury in a context of severe spasticity. The characteristics of these jerks were determined by polymyography of 12 muscles. They lasted between 306 and 1127 ms with a frequency of 0.3 to 0.5 Hz. By comparing latencies their origin was found to be in the lumbar cord from which there was a slow (2 m s-1) upward and downward spread. Oral treatment with baclofen and sodium valproate was partially successful in one patient, but ineffective in the other. Intrathecal 75 or 100 micrograms baclofen produced a striking, complete disappearance of myoclonus prompting the implantation and successful use of a baclofen pump in one patient. These two new cases suggest the existence of a lumbar generator in which myoclonic extension jerks originate, and demonstrate a new therapeutic alternative in intrathecal baclofen for patients resistant to oral medication.

Adult↗
PubMed1995

Mean term follow-up of a series of post-traumatic syringomyelia patients after syringo-peritoneal shunting.

We report the follow-up of a series of post-traumatic syringomyelia patients treated by syringo-peritoneal shunting (SPS). The neurological status was determined following the international ASIA/IMSOP standards for neurological classification of spinal cord injury; this was completed by a modified Silberstein classification that identifies the ascending neurological symptoms as well as the increasing myelopathic symptoms in patients with post-traumatic syringomyelia. Magnetic resonance imaging (MRI) was systematically performed to assess the presence of a postoperative residual syrinx or of meningeal fibrosis. Eight patients were studied (five men, three women) with an age ranging from 17 to 54 years (mean of 30.7 years) at the time of the spinal cord injury. Three had a complete or nearly complete paraplegia, five were incomplete. The post-traumatic syringomyelia was diagnosed from 2 to 8 years after the spinal cord injury and was treated by syringo-peritoneal shunting. Early complications occurred in three patients: (1) displacement of the catheter, (2) obstruction of the catheter, and (3) haematomyelia, which disappeared after a new surgical procedure was performed. The postoperative follow-up ranged from 3 to 9 years (mean of 4.5 years). The neurological level decreased in every case and the ascending neurological symptoms decreased or were stabilised in seven patients. The postoperative ASIA/IMSOP scores and the increasing myelopathic symptoms improved in four patients but worsened in the four others, incomplete. The MRI showed an important decrease of the syrinxes in every patient associated with a serious meningeal fibrosis in five cases. Syringo-peritoneal shunting seems to be efficient in the treatment of the syrinx but may have a poor effect regarding the prevention of meningeal fibrosis.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1995

Visuo-spatial attention and psychomotor performance in elderly community residents: effects of age, gender, and education.

In cross-sectional analysis of 1,799 subjects of the Paquid Research Program, an epidemiological study on brain aging conducted in the Bordeaux area (France), we have studied the effects of age, gender, and education level on psychometric tests requiring visuo-spatial focused attention and psychomotor performance. Although previous studies suggest that normal aging produces no significant change in focused attention, we did observe lower attentional abilities and lower speed of execution with increasing age. Female gender and low education level were also related to poorer attention and psychomotor performance. As the effects of these individual factors are difficult to disentangle from each other on the small samples of subjects used in group studies, epidemiological surveys seem useful to provide a better understanding of the neuropsychology of aging.

Age Factors↗