FU Berlin Digitale Dissertation
Olaf Jörg Kopetsch : Comparison of the results of intraoperative neurophysiologic mapping and monitoring in preoperative paretic and non-paretic patients with lesions in or near the central region Vergleich der Ergebnisse des intraoperativen neurophysiologischen Mappings und Monitorings mittels SEP-Phasenumkehr und monopolarer Kortexstimulation bei Operationen von präoperativ paretischen und nicht paretischen Patienten mit Raumforderungen in der Zentralregion
|Abstract| |Table of Contents| |More Information|

Abstract This prospective study included consecutively patients with lesions in or near the central region during the time period from December 1996 to June 1998. According to the preoperative clinical examination the patients were separated in different groups. Each patient was examined on defined pre- and postoperative dates under the usage of a standard protocol. Intraoperative localization of the sulcus centralis was performed under usage of SEP phase reversal. Subsequently the motor cortex was stimulated by monopolar stimulation (mapping). After limiting different functional areas a constant monitoring was made. The aim of this study is to rule out limitation of intraoperative functional mapping and monitoring by patients with a preoperative paralysis. The identification of the central sulcus by SEP phase reversal was in nearly all patients possible. In two cases a technical malfunction was observed. The following mapping was in two preoprative paretic patients impossible. A technical defect was surely ruled out. Both patients showed pre- and postoperative a severe hemiparesis. Although an intraoperative monitoring of the motor function wasn't practicable the central sulcus could identified in this patients with SEP phase reversal. This results ruled out a serious affection of the motor system as a limitation of intraoperative monopolar stimulation. In summary the achieved data of this study demonstrate that the usage of intraoperative neurophysiologic mapping and monitoring in patients with lesions in or near the central sulcus is a save and helpful method. The combination of different neurophysiologic methods and it's synergies is helpful especially in patients with severe preoperative affection of the motor cortex.

Table of Contents Download the whole PhDthesis as a zip-tar file or as zip-File For download in PDF format click the chapter title Titelblatt Einleitung Material und Methode Ergebnisse Diskussion Zusammenfassung Literaturverzeichnis Anhang

More Information:
Online available:	http://www.diss.fu-berlin.de/2001/47/indexe.html
Language of PhDThesis:	german
Keywords:	intraoperative monitoring, intraoperative mapping, SEP phase reversal
DNB-Sachgruppe:	33 Medizin
Date of disputation:	06-Apr-2001
PhDThesis from:	Fachbereich Humanmedizin, Freie Universität Berlin
First Referee:	Prof. Dr. Dr. h.c. Mario Brock
Second Referee:	Prof. Dr. Max Straschill
Contact (Author):	o.j.kopetsch@t-online.de
Notes:	Nicht alle zur Veröffentlichung vorgesehenen Aufnahmen konnten geliefert werden, daher viele leere Felder
Date created:	28-Mar-2001
Date available:	04-Apr-2001

 

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