Logan Voss

Summary

Country: New Zealand

Publications

  1. ncbi Effects of prior hypoxia exposure, endotoxin and sleep state on arousal ability to airway obstruction in piglets: implications for sudden infant death syndrome
    L J Voss
    Department of Physiology, University of Otago Medical School, Dunedin, New Zealand
    Biol Neonate 88:145-55. 2005
  2. ncbi Endotoxin effects on markers of autonomic nervous system function in the piglet: implications for SIDS
    L J Voss
    Department of Physiology, University of Otago Medical School, Dunedin, New Zealand
    Biol Neonate 86:39-47. 2004
  3. ncbi Stability of brain neocortical slice seizure-like activity during low-magnesium exposure: Measurement and effect of artificial cerebrospinal fluid temperature
    Logan J Voss
    Department of Anesthesiology, Waikato Clinical School, University of Auckland, New Zealand
    J Neurosci Methods 192:214-8. 2010
  4. ncbi Role of Cx36 gap junction modulation in general anaesthetic anticonvulsant action
    Logan J Voss
    Department of Anesthesiology, Waikato Clinical School, University of Auckland, New Zealand
    Eur J Pharmacol 643:58-62. 2010
  5. ncbi Excitatory effects of gap junction blockers on cerebral cortex seizure-like activity in rats and mice
    Logan J Voss
    Department of Anesthesiology, Waikato Clinical School, University of Auckland, Waikato Hospital, New Zealand
    Epilepsia 50:1971-8. 2009
  6. ncbi Aconitine induces prolonged seizure-like events in rat neocortical brain slices
    Logan J Voss
    Department of Anaesthesia, Waikato Hospital, Hamilton, New Zealand
    Eur J Pharmacol 584:291-6. 2008
  7. ncbi Monitoring consciousness: the current status of EEG-based depth of anaesthesia monitors
    Logan Voss
    Department of Anaesthesia, Waikato Clinical School, University of Auckland, Hamilton, New Zealand
    Best Pract Res Clin Anaesthesiol 21:313-25. 2007
  8. ncbi A comparison of pharmacokinetic/pharmacodynamic versus mass-balance measurement of brain concentrations of intravenous anesthetics in sheep
    Logan J Voss
    Department of Anaesthesia and Intensive Care, University of Adelaide and Royal Adelaide Hospital, North Terrace, Adelaide University, Adelaide, South Australia, Australia
    Anesth Analg 104:1440-6, table of contents. 2007
  9. ncbi Cerebral cortical effects of desflurane in sheep: comparison with isoflurane, sevoflurane and enflurane
    L J Voss
    Waikato Clinical School, University of Auckland, Hamilton, New Zealand
    Acta Anaesthesiol Scand 50:313-9. 2006
  10. ncbi Changes in frequency of seizure-like events in stimulated cortical slices
    Jonathan Mason
    Waikato University, Hamilton, New Zealand
    Conf Proc IEEE Eng Med Biol Soc 2010:2041-4. 2010

Collaborators

Detail Information

Publications20

  1. ncbi Effects of prior hypoxia exposure, endotoxin and sleep state on arousal ability to airway obstruction in piglets: implications for sudden infant death syndrome
    L J Voss
    Department of Physiology, University of Otago Medical School, Dunedin, New Zealand
    Biol Neonate 88:145-55. 2005
    ..Respiratory tract infections may be an important component in many deaths attributed to sudden infant death syndrome (SIDS), although the mechanism of involvement remains unclear...
  2. ncbi Endotoxin effects on markers of autonomic nervous system function in the piglet: implications for SIDS
    L J Voss
    Department of Physiology, University of Otago Medical School, Dunedin, New Zealand
    Biol Neonate 86:39-47. 2004
    ..These findings are consistent with known risk factors for sudden infant death syndrome...
  3. ncbi Stability of brain neocortical slice seizure-like activity during low-magnesium exposure: Measurement and effect of artificial cerebrospinal fluid temperature
    Logan J Voss
    Department of Anesthesiology, Waikato Clinical School, University of Auckland, New Zealand
    J Neurosci Methods 192:214-8. 2010
    ....
  4. ncbi Role of Cx36 gap junction modulation in general anaesthetic anticonvulsant action
    Logan J Voss
    Department of Anesthesiology, Waikato Clinical School, University of Auckland, New Zealand
    Eur J Pharmacol 643:58-62. 2010
    ..The role of gap junction modulation by etomidate is more complicated and may be important in the mechanism of action of etomidate's proconvulsant effects...
  5. ncbi Excitatory effects of gap junction blockers on cerebral cortex seizure-like activity in rats and mice
    Logan J Voss
    Department of Anesthesiology, Waikato Clinical School, University of Auckland, Waikato Hospital, New Zealand
    Epilepsia 50:1971-8. 2009
    ..The cerebral cortex is underrepresented in this body of research. We have investigated the effect of gap junction blockade on seizure-like activity in rat and mouse cerebral cortex slices...
  6. ncbi Aconitine induces prolonged seizure-like events in rat neocortical brain slices
    Logan J Voss
    Department of Anaesthesia, Waikato Hospital, Hamilton, New Zealand
    Eur J Pharmacol 584:291-6. 2008
    ..The latter is effected by calcium-dependent mechanisms, in keeping with known effects of aconitine on hippocampal slices. Both sodium and NMDA channels are involved in mediating the calcium-dependent aconitine effects...
  7. ncbi Monitoring consciousness: the current status of EEG-based depth of anaesthesia monitors
    Logan Voss
    Department of Anaesthesia, Waikato Clinical School, University of Auckland, Hamilton, New Zealand
    Best Pract Res Clin Anaesthesiol 21:313-25. 2007
    ..g. an awake-looking EEG, but an unresponsive patient; or a slow-wave EEG in an awake patient). Fortunately, a slow-wave EEG (even in the presence of a responsive patient) usually indicates profound amnesia for explicit memory...
  8. ncbi A comparison of pharmacokinetic/pharmacodynamic versus mass-balance measurement of brain concentrations of intravenous anesthetics in sheep
    Logan J Voss
    Department of Anaesthesia and Intensive Care, University of Adelaide and Royal Adelaide Hospital, North Terrace, Adelaide University, Adelaide, South Australia, Australia
    Anesth Analg 104:1440-6, table of contents. 2007
    ....
  9. ncbi Cerebral cortical effects of desflurane in sheep: comparison with isoflurane, sevoflurane and enflurane
    L J Voss
    Waikato Clinical School, University of Auckland, Hamilton, New Zealand
    Acta Anaesthesiol Scand 50:313-9. 2006
    ..In this study, we investigated the propensity of desflurane to induce cortical spikes and made a direct objective comparison with enflurane, isoflurane, and sevoflurane. The ECoG effects of desflurane have not been previously reported...
  10. ncbi Changes in frequency of seizure-like events in stimulated cortical slices
    Jonathan Mason
    Waikato University, Hamilton, New Zealand
    Conf Proc IEEE Eng Med Biol Soc 2010:2041-4. 2010
    ..5 microA). Differently from previously thought, this change in frequency is however not accompanied by any alteration of the tissue permittivity or conductivity during the inter-seizure interval...
  11. ncbi The electrocortical effects of enflurane: experiment and theory
    James W Sleigh
    Department of Anaesthesiology, Waikato Clinical School, University of Auckland, Auckland, New Zealand
    Anesth Analg 109:1253-62. 2009
    ..In this study, we compared a theoretical computer model of this activity with real local field potential (LFP) data obtained from anesthetized rats...
  12. ncbi The effect of skin incision on the electroencephalogram during general anesthesia maintained with propofol or desflurane
    James W Sleigh
    Department of Anesthesia, Waikato Clinical School of the University of Auckland, Waikato Hospital, Hamilton, 3206, New Zealand
    J Clin Monit Comput 24:307-18. 2010
    ..What are the patterns commonly seen during routine clinical anesthesia?..
  13. ncbi ADHD-like hyperactivity, with no attention deficit, in adult rats after repeated hypoxia during the equivalent of extreme prematurity
    Dorothy E Oorschot
    Department of Anatomy and Structural Biology, University of Otago, P O Box 913, Dunedin, New Zealand
    J Neurosci Methods 166:315-22. 2007
    ..These findings provide a new animal model to investigate the biological mechanisms and treatment of ADHD-like hyperactivity due to repeated hypoxia during the equivalent of extreme prematurity...
  14. ncbi Differential anaesthetic effects following microinjection of thiopentone and propofol into the pons of adult rats: a pilot study
    L J Voss
    Department of Anaesthesiology, University of Auckland, New Zealand
    Anaesth Intensive Care 33:373-80. 2005
    ..In summary, propofol and thiopentone have different effects when microinjected into the MPTA. While both agents reduced reflex withdrawal to a nociceptive stimulus, only thiopentone induced an "anaesthesia-like" state...
  15. ncbi Episodic waveforms in the electroencephalogram during general anaesthesia: a study of patterns of response to noxious stimuli
    E C MacKay
    Department of Anaesthesia, Waikato Hospital, Hamilton, New Zealand
    Anaesth Intensive Care 38:102-12. 2010
    ..002). It is possible to quantify such episodic EEG patterns during general anaesthesia and in this study noxious stimulation tended to reduce the prevalence of these patterns...
  16. ncbi Can anaesthetists be taught to interpret the effects of general anaesthesia on the electroencephalogram? Comparison of performance with the BIS and spectral entropy
    J P Barnard
    Department of Anaesthesia, Waikato Hospital, Hamilton, New Zealand
    Br J Anaesth 99:532-7. 2007
    ..There are, however, clear changes in the EEG caused by GABA-ergic anaesthetic agents. The anaesthetized EEG still looks like a random waveform, but clearly a different random waveform from that seen when conscious...
  17. ncbi The howling cortex: seizures and general anesthetic drugs
    Logan J Voss
    Department of Anesthesia, Waikato Clinical School, Waikato Hospital, Pembroke St, Hamilton, New Zealand
    Anesth Analg 107:1689-703. 2008
    ..Seizures may falsely elevate electroencephalogram indices of depth of anesthesia...
  18. ncbi Using permutation entropy to measure the electroencephalographic effects of sevoflurane
    Xiaoli Li
    Department of Automation, Institute of Electrical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China
    Anesthesiology 109:448-56. 2008
    ..In this study, the AE and PE were applied to electroencephalographic recordings for revealing the effect of sevoflurane on brain activity. The dose-response relation of PE during sevoflurane anesthesia was compared with that of AE...
  19. ncbi Measure of the electroencephalographic effects of sevoflurane using recurrence dynamics
    Xiaoli Li
    Cercia, School of Computer Science, The University of Birmingham, Birmingham B15 2TT, UK
    Neurosci Lett 424:47-50. 2007
    ..A test sample of nine patients shows the recurrence in EEG data may track the effect of the sevoflurane on the brain...
  20. ncbi Pharmacokinetic-pharmacodynamic modeling the hypnotic effect of sevoflurane using the spectral entropy of the electroencephalogram
    Ian D H McKay
    Department of Anaesthesia, Waikato Hospital, New Zealand
    Anesth Analg 102:91-7. 2006
    ..Spectral entropy decreases with increasing sevoflurane concentrations up to 3%. The steepness of the dose-response curve varies between phases of increasing and decreasing anesthetic concentrations...