Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Neurological sciences 11 (1990), S. 281-288 
    ISSN: 1590-3478
    Keywords: Cerebral blood flow ; blood pressure ; primary dysautonomia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario Abbiamo misurato il Flusso Ematico Cerebrale (FEC) — con il metodo inalatorio allo Xenon-133 — in clinostatismo, in posizione seduta e dopo la somministrazione e.v. di Acetazolamide, un potente vasodilatatore cerebrale, in un uomo affetto da Sindrome Disautonomica Primitiva con ipotensione severa, ortostatica e da sforzo. Inoltre, abbiamo monitorato per 24 ore la Pressione Arteriosa (PA) e la Frequenza Cardiaca (FC) per mezzo di metodica non-invasiva. I nostri risultati dimostrano che il FEC è ridotto in posizione seduta, ma è normale in clinostatismo, e che mantiene la capacità di reagire a stimoli vasodilatatori, nonostante la denervazione simpatica. La PA è risultata dipendente dalla forza gravitazionale, mentre la FC è “fissa”, cioè non risponde agli stimoli ortostatici e allo sforzo.
    Notes: Abstract In a man with orthostatic and effort syncopes due to primary dysautonomia, we measured cerebral blood flow (CBF) — by the 133-Xenon inhalation method — in supine and in sitting positions, and after the i.v. administration of Acetazolamide, a potent cereral vasodilator. Heart rate (HR) and blood pressure (BP) were monitored over the 24 hours by a non-invasive device. The CBF was normal in supine position and significantly reduced when the patient was sitting. Despite che sympathetic denervation, good response to acetazolamide infusion was seen. BP changed with the position of the subject according to gravity, and HR was unresponsive to orthostatic and effort stimuli.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1590-3478
    Keywords: Video-EEG ; Neuropsychology ; Drug-resistant partial epilepsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario Viene riportato il caso di un destrimane di 15 anni affetto da una grave epilessia farmaco-resistente centro-temporale destra e sottoposto a video-EEG come primo passo della valutazione prechirurgica. Durante il monitoraggio furono registrate 23 brevi crisi nell'arco di 67 minuti mentre eseguiva parte dell'indagine neuropsicologica. In intercritico e soprattutto in critico la prestazione del soggetto alle prove verbali è risultata deficitaria. Analizzando la relazione tra dati EEG e neuropsicologici abbiamo rilevato: — un peggioramento della prestazione cognitiva correlato ad un aumento delle anomalie intercritiche in particolare in presenza dei parossismi infraclinici; — che quando gli item erano eseguiti in percritico erano corretti circa il 50% delle volte; — un'alta incidenza di errori quando il compito era presentato durante o immediatamente dopo una crisi piuttosto che prima del suo inizio. Sulla base dei dati neuropsicologici è stato eseguito il test di Wada che ha dimostrato una dominanza emisferica destra per il linguaggio. Dalla nostra osservazione emergono l'importanza della valutazione neuropsicologica nell'approccio prechirurgico dell'epilessia e il suggerimento di utilizzarla in percritico quando possibile.
    Notes: Abstract A 15-year-old, right-handed boy underwent video-EEG study as a first step in presurgical evaluation for a severe drug-resistant right temporo-central epilepsy. He was monitored while performing neuropsychological tests over a 67-minute period during which 23 brief seizures were recorded. Despite his right-handedness, both inter-ictal and ictal verbal performances were impaired. Analysis of the relationships between the characteristics of the EEG and the neuropsychological results revealed that a worsening in cognitive performances correlated with an increase in interictal abnormalities, particularly when subclinical paroxysms were present; that the cognitive tasks executed peri-ictally were correctly performed in almost 50% of the cases; and that the error rate was higher when a task was presented during or immediately after a seizure rather than before its onset. A Wada test, performed on the basis of the cognitive results, demonstrated right hemisphere dominance for language. Our observations underline the importance of neuropsychological testing in presurgical procedures, and suggest that it should be performed peri-ictally whenever possible.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1433-0350
    Keywords: Key words Child ; Adolescent ; Presurgical investigations ; Stereo electroencephalography ; Epilepsy surgery ; Outcome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We reviewed 41 studies on epilepsy surgery in 1645 children and adolescents. The available data vary greatly from one paper to another, particularly as regards the age of the patients included, selection criteria, presurgical methodology, and the type of surgical intervention. Moreover, the surgical results are classified according to very different criteria. Our experience in Grenoble concerning 55 children (age ≤16 years; postoperative follow-up 〉18 months) is discussed in the light of data in the literature. The need is stressed for a consensus on the type of information that must be supplied by well-detailed studies on homogeneous groups of epilepsy surgery patients.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...