Biomedical subjects

Sylvia Bösch

Publications and source records attributed to Sylvia Bösch.

3 recordsLinked to original sources

PubMed2006

Valvular heart disease in Parkinson's disease vs. controls: An echocardiographic study.

Restrictive valvulopathy has been reported in association with dopamine agonist therapy in parkinsonian patients. The majority of reports have been related to pergolide, but anecdotal cases following treatment with bromocriptine or cabergoline have also been presented. It is presently unclear whether the potential induction of restrictive cardiac valvulopathy is a class effect of all dopamine agonists or if there is a differential risk between ergot and nonergot compounds. In this study, the frequency of a valvular regurgitation as assessed by routine transthoracic echocardiography was compared between 75 patients with Parkinson's disease (PD) treated with pergolide (n = 29), cabergoline (n = 13), pramipexole or ropinirole (n = 33), and 49 age-matched nonparkinsonian controls. The exposure to pergolide and cabergoline was associated with higher frequencies of valvular regurgitation grades 2 and 3 (31% and 47%) compared with age-matched controls (13%), while there was no increase of valvular regurgitation grades 2 and 3 in patients treated with nonergot compounds (10%). Evidence for restrictive valvulopathy was found in one patient treated with pergolide and cabergoline each. While this study shows similarly increased frequencies of valvular regurgitation in patients treated with the ergot agonists pergolide and cabergoline in comparison to both normal controls and patients treated with nonergot agonists, evidence for restrictive valvulopathy was only found in two cases. These results highlight the need for further prospective studies of the prevalence and underlying mechanisms of cardiac valvulopathy in PD patients treated with different dopamine agonists.

Aged↗

PubMed2003

Voxel-based morphometry detects cortical atrophy in the Parkinson variant of multiple system atrophy.

To determine magnetic resonance imaging (MRI) patterns of brain atrophy in parkinsonian syndromes, we applied voxel-based morphometry (VBM) to segmented gray matter, white matter, and cerebrospinal fluid compartments of T(1)-weighted brain volumes of 12 patients with probable multiple system atrophy-parkinson variant (MSA-P) and 12 Parkinson's disease patients, comparing them with 12 normal controls matched for age. In comparison to controls, a cortical atrophy pattern was observed in MSA-P patients with significant clusters of volume loss in primary sensorimotor cortices bilateral, supplementary motor areas bilateral, right premotor cortex, prefrontal cortex bilateral (middle frontal gyri) and insular cortices bilateral; subcortical atrophy occurred bilaterally in caudate nuclei and putamen as well as in the midbrain. Furthermore, an enlargement of the cerebrospinal fluid compartment was found in the lateral ventricles, third ventricle, perimesencephalic and cerebellomedullar cavities. In PD patients, significant atrophy only occurred in left caudate head with enlargement of left lateral ventricle. Comparing MSA-P to PD patients, MSA-P showed a similar cortical pattern of atrophy as compared to controls. We conclude that VBM reveals selective cortical atrophy in patients with MSA-P affecting primary and higher order motor areas as well as prefrontal and insular cortices. Further studies are required to determine clinical and/or subclinical correlates of cortical atrophy in MSA-P.

Aged↗

PubMed2003

[Multibacillary leprosy in Tyrol].

Five cases of multibacillary leprosy have been diagnosed in a period of 15 years (1987-2001) at the outpatient Department of Neurology of the University Hospital Innsbruck. All patients presented with dermatological and mild to severe polyneuropathic signs and symptoms. 4/5 patients recovered fully, whereas 1 patient with an initially severe polyneuropathy showed persistent polyneuropathy as long-term sequela. The prevalence of leprosy in the catchment area of the Department of Neurology, University Hospital Innsbruck (comprising the entire province of Tyrol--650,000 inhabitants) is to be calculated as 0.5/1 million. The incidence of newly diagnosed leprosy within this province of Tyrol is 0.04/100,000/year. The aim of the presentation of these 5 patients is--beside the epidemiologic aspect--to alert all neurologists and dermatologists that this disease still exists--despite decreasing prevalence and incidence rates on a global scale; this is of particular importance since neurological long-term sequelae can only be avoided by early diagnosis.

Adult↗