Download EEG Atlas for Anesthesiologists by Professor Dr. Ina Pichlmayr, Dr. Peter Lehmkuhl, Dr. Ulrich PDF

By Professor Dr. Ina Pichlmayr, Dr. Peter Lehmkuhl, Dr. Ulrich Lips (auth.)

ISBN-10: 3642831613

ISBN-13: 9783642831614

ISBN-10: 364283163X

ISBN-13: 9783642831638

This atlas deals a suite of EEG spectral analyses and their corresponding traditional recordings below anes­ thesio10gical systems. The EEGs provided right here have been re­ corded on basic surgical and gynecological sufferers over the past few years. Premedication, induction and upkeep of anesthesia, restoration the instant postoperative interval, and extensive care are lined. recommendations for working the required apparatus and artefacts correct to the regimen medical use of EEG are in brief defined. regular examples of attribute EEGs are provided first and foremost of every bankruptcy, via illustrations of deviations from the norm displaying the nice number of anesthesiologically brought about alterations of cerebral functionality. the outline of every EEG path is classified in terms of scientific parameters. occasionally no passable interpreta­ tion should be made, simply because many physiological and patho­ physiological explanations of changes in cerebral functionality are unknown. repeatedly it proves most unlikely to estimate wether deviations from the norm have their foundation in cerebral alterations or are secondary to extracerebra1 disturbances. The atlas contains an entire survey in itself, however it is also obvious as a complement to the publication The Electroenceph­ alogram in Anesthesia via I. Pich1mayr, U. Lips, and H. Kunkel (Springer, 1983), within which precise lists of references are quoted which are passed over here.

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State of health: good (tl lead: C3-P3 15 ' d la' c 5' 0' a 4 8 12 16 20 [c/sl 24 b d t---:-_----'TSOJN l s ec 43 44 EEG Under Anesthetic Medication and Perioperative Influences 5 Pethidine Pethidine is the first synthetic opiate to be in wide clinical use. It is about five times less potent than morphine. , respiratory depression. Figure 23 Initial EEG Alpha EEG After intravenous administration Together with a marked reduction in alpha activity there is a distinct increase in the delta/theta band.

32 lrillal EEG [clsl 47 48 EEG Under Anesthetic Medication and Perioperative Influences Figure 25 Initial EEG Irregular EEG (EEG in old age with pathological changes) After intravenous administration The injection of pethidine leads to a reduction of the higher cut-off frequency and to a slight accentuation of slower portions in the deltaltheta range Interpretation The slight decrease of fast beta-activity and the simultaneous slight accentuation of low frequencies point to mild sedation. o. 9 state of health : good lead : C3-P3 [t) 15' 10' 5' - ~~~ b VI18:::~~ a} initial EEG 0' r---,--=-r----r---,----r----r---~~~i o 4 8 12 16 20 24 28 32 b >---_ _~J50,uV 1 sec 50 EEG Under Anesthetic Medication and Perioperative Influences Figure 26 Initial EEG Low-voltage EEG After intravenous administra tion The character of the low-voltage EEG remains unchanged.

At high doses delta activity occurs as an expression of the sedative and narcotic effects of the drug. Figure 14 Initial EEG Alpha EEG After intravenous administra tion Rapid increase of activity in the theta and beta bands. While there is a reduction of theta activity after 5 min (theta activity is an expression of decreased vigilance), the beta activity lasts up to the end of the monitored period, though with a tendency to decrease Interpretation The effect of diazepam documented here is a characteristic example.

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EEG Atlas for Anesthesiologists by Professor Dr. Ina Pichlmayr, Dr. Peter Lehmkuhl, Dr. Ulrich Lips (auth.)


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