R K Ellerkmann

Summary

Affiliation: University of Bonn
Country: Germany

Publications

  1. doi request reprint Brain monitoring revisited: what is it all about?
    Richard K Ellerkmann
    Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Best Pract Res Clin Anaesthesiol 27:225-33. 2013
  2. ncbi request reprint The response of the composite variability index to a standardized noxious stimulus during propofol-remifentanil anesthesia
    Richard Klaus Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Sigmund Freud Str 25, 53105 Bonn Germany
    Anesth Analg 116:580-8. 2013
  3. ncbi request reprint Spectral entropy and bispectral index as measures of the electroencephalographic effects of sevoflurane
    Richard Klaus Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Anesthesiology 101:1275-82. 2004
  4. ncbi request reprint The correlation of the bispectral index with propofol effect site concentrations is not altered by epochs indicated as artefact-loaded by narcotrend
    Richard K Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    J Clin Monit Comput 18:283-7. 2004
  5. ncbi request reprint Spectral entropy and bispectral index as measures of the electroencephalographic effects of propofol
    Richard Klaus Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Germany
    Anesth Analg 102:1456-62. 2006
  6. ncbi request reprint Reduction in anaesthetic drug consumption is correlated with mean titrated intra-operative Bispectral Index values
    R K Ellerkmann
    Department of Anaesthesiology, University of Bonn, Bonn, Germany
    Acta Anaesthesiol Scand 50:1244-9. 2006
  7. ncbi request reprint The Entropy Module and Bispectral Index as guidance for propofol-remifentanil anaesthesia in combination with regional anaesthesia compared with a standard clinical practice group
    R K Ellerkmann
    Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Anaesth Intensive Care 38:159-66. 2010
  8. doi request reprint Patient state index vs bispectral index as measures of the electroencephalographic effects of propofol
    M Soehle
    Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Sigmund Freud Strasse 25, Bonn, Germany
    Br J Anaesth 105:172-8. 2010
  9. ncbi request reprint Maximizing prediction probability PK as an alternative semiparametric approach to estimate the plasma effect-site equilibration rate constant ke0
    Richard K Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Anesth Analg 109:1470-8. 2009
  10. ncbi request reprint Bilateral bispectral index monitoring during and after electroconvulsive therapy compared with magnetic seizure therapy for treatment-resistant depression
    M Soehle
    Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Br J Anaesth 112:695-702. 2014

Detail Information

Publications12

  1. doi request reprint Brain monitoring revisited: what is it all about?
    Richard K Ellerkmann
    Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Best Pract Res Clin Anaesthesiol 27:225-33. 2013
    ..However a study demonstrating both a reduced intraoperative drug consumption and at the same time a reduction of intraoperative awareness due to the use of brain-monitoring devices has not been published yet. ..
  2. ncbi request reprint The response of the composite variability index to a standardized noxious stimulus during propofol-remifentanil anesthesia
    Richard Klaus Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Sigmund Freud Str 25, 53105 Bonn Germany
    Anesth Analg 116:580-8. 2013
    ..Furthermore, we measured the increase in CVI after a noxious stimulus in comparison to other clinical variables (BIS, sBIS, sEMG, heart rate [HR], and systolic blood pressure [BP(sys)])...
  3. ncbi request reprint Spectral entropy and bispectral index as measures of the electroencephalographic effects of sevoflurane
    Richard Klaus Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Anesthesiology 101:1275-82. 2004
    ..8-32 Hz and a response entropy (RE) computed over the frequency range of 0.8-47 Hz. The authors investigated the dose-response relation of SE and RE during sevoflurane anesthesia in comparison with the Bispectral Index (BIS)...
  4. ncbi request reprint The correlation of the bispectral index with propofol effect site concentrations is not altered by epochs indicated as artefact-loaded by narcotrend
    Richard K Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    J Clin Monit Comput 18:283-7. 2004
    ..0) excludes more EEG epochs because of artefacts than bispectral index monitoring (BIS, Aspect Medical Systems, Newton, MA, version XP). Whether this increased exclusion of epochs is justified has not been investigated yet...
  5. ncbi request reprint Spectral entropy and bispectral index as measures of the electroencephalographic effects of propofol
    Richard Klaus Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Germany
    Anesth Analg 102:1456-62. 2006
    ..77 +/- 0.09, 0.76 +/- 0.10, and 0.84 +/- 0.06, respectively. BIS seems to show slight advantages in predicting propofol effect-site concentrations compared with SE and RE, as measured by P(K) but not as measured by R2...
  6. ncbi request reprint Reduction in anaesthetic drug consumption is correlated with mean titrated intra-operative Bispectral Index values
    R K Ellerkmann
    Department of Anaesthesiology, University of Bonn, Bonn, Germany
    Acta Anaesthesiol Scand 50:1244-9. 2006
    ..However, the amount of reduction varied widely between 1% and 40%. We investigated the correlation between reduction in anaesthetic drug consumption and mean titrated BIS values...
  7. ncbi request reprint The Entropy Module and Bispectral Index as guidance for propofol-remifentanil anaesthesia in combination with regional anaesthesia compared with a standard clinical practice group
    R K Ellerkmann
    Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Anaesth Intensive Care 38:159-66. 2010
    ....
  8. doi request reprint Patient state index vs bispectral index as measures of the electroencephalographic effects of propofol
    M Soehle
    Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Sigmund Freud Strasse 25, Bonn, Germany
    Br J Anaesth 105:172-8. 2010
    ..The patient state index (PSI) and the bispectral index (BIS) quantify anaesthetic depth based on the EEG using different algorithms. We compared both indices with regard to the prediction of the depth of propofol anaesthesia...
  9. ncbi request reprint Maximizing prediction probability PK as an alternative semiparametric approach to estimate the plasma effect-site equilibration rate constant ke0
    Richard K Ellerkmann
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Anesth Analg 109:1470-8. 2009
    ..In this study, we introduce a new semiparametric approach calculating k(e)(0) values for isoflurane, sevoflurane, and desflurane by maximizing the prediction probability P(K)...
  10. ncbi request reprint Bilateral bispectral index monitoring during and after electroconvulsive therapy compared with magnetic seizure therapy for treatment-resistant depression
    M Soehle
    Department of Anaesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Br J Anaesth 112:695-702. 2014
    ..Both require general anaesthesia, which could be quantified using the bispectral index (BIS). We compared ECT and MST with respect to recovery times, left-sided BIS, and left-right differences in BIS...
  11. ncbi request reprint Correlation of the A-Line ARX index with acoustically evoked potential amplitude
    I Wenningmann
    Department of Anaesthesiology and Intensive Care, University of Bonn Bonn, Germany
    Br J Anaesth 97:666-75. 2006
    ..4). Several studies have reported variable and, in awake patients, sometimes surprisingly low AAI values. The purpose of this study was to reproduce these findings under steady-state conditions and to investigate their causes...
  12. doi request reprint Comparison between bispectral index and patient state index as measures of the electroencephalographic effects of sevoflurane
    Martin Soehle
    Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Bonn, Germany
    Anesthesiology 109:799-805. 2008
    ..The Bispectral Index (BIS) and the Patient State Index (PSI) quantify depth of anesthesia by analyzing the electroencephalogram. The authors examined the response of BIS and PSI to sevoflurane anesthesia...