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  1. Article ; Online: IONM protocols.

    Norton, Jonathan

    Journal of clinical monitoring and computing

    2021  Volume 35, Issue 5, Page(s) 957–958

    MeSH term(s) Humans ; Monitoring, Intraoperative ; Thyroidectomy
    Language English
    Publishing date 2021-01-18
    Publishing country Netherlands
    Document type Editorial ; Comment
    ZDB-ID 1418733-4
    ISSN 1573-2614 ; 1387-1307 ; 0748-1977
    ISSN (online) 1573-2614
    ISSN 1387-1307 ; 0748-1977
    DOI 10.1007/s10877-021-00650-y
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    Zs.A 2054: Show issues Location:
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  2. Article: Intermuscular Coherence in the Presence of Electrical Stimulation.

    Norton, Jonathan A

    Frontiers in systems neuroscience

    2021  Volume 15, Page(s) 647430

    Abstract: The nervous system uses oscillations to convey information efficiently. Inter-muscular coherence in the 15-35 Hz range is thought to represent common cortical drive to muscles, but is also in the frequency band in which electrical stimulation is applied ... ...

    Abstract The nervous system uses oscillations to convey information efficiently. Inter-muscular coherence in the 15-35 Hz range is thought to represent common cortical drive to muscles, but is also in the frequency band in which electrical stimulation is applied to restore movement following neurological disease or injury. We wished to determine if, when stimulation is applied at the peak frequency of the coherence spectra it was still possible to determine voluntary effort. Using healthy human subjects we stimulated muscles in the arms and legs, separate experiments, while recording EMG activity from pairs of muscles including the stimulated muscles. Offline coherence analysis was performed. When stimulation is greater than motor threshold, and applied at the peak of the coherence spectra a new peak appears in the spectra, presumably representing a new frequency of oscillation within the nervous system. This does not appear at lower stimulation levels, or with lower frequencies. The nervous system is capable of switching oscillatory frequencies to account for noise in the environment.
    Language English
    Publishing date 2021-05-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2453005-0
    ISSN 1662-5137
    ISSN 1662-5137
    DOI 10.3389/fnsys.2021.647430
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  3. Article: Training and Regulating Clinical Scientists in Canada: Online Training for Intraoperative Neuromonitoring? - ERRATUM.

    Norton, Jonathan

    The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques

    2019  Volume 46, Issue 1, Page(s) 149

    Language English
    Publishing date 2019-01-28
    Publishing country England
    Document type Journal Article ; Published Erratum
    ZDB-ID 197622-9
    ISSN 0317-1671
    ISSN 0317-1671
    DOI 10.1017/cjn.2018.343
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    Zs.A 1203: Show issues Location:
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  4. Article: Training and Regulating Clinical Scientists in Canada: Online Training for Intraoperative Neuromonitoring?

    Norton, Jonathan

    The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques

    2018  Volume 46, Issue 1, Page(s) 5–6

    MeSH term(s) Canada ; Electromyography
    Language English
    Publishing date 2018-05-08
    Publishing country England
    Document type Editorial ; Comment
    ZDB-ID 197622-9
    ISSN 0317-1671
    ISSN 0317-1671
    DOI 10.1017/cjn.2018.20
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  5. Article ; Online: Editorial: Slipping through the back door: Dorsal radial and hydrophilic sheathless guides.

    Gilchrist, Ian C / Norton, Jonathan M / Ahmed, Mohammad

    Cardiovascular revascularization medicine : including molecular interventions

    2023  Volume 61, Page(s) 68–69

    MeSH term(s) Humans ; Coronary Artery Disease ; Angioplasty, Balloon, Coronary
    Language English
    Publishing date 2023-12-21
    Publishing country United States
    Document type Editorial
    ZDB-ID 2212113-4
    ISSN 1878-0938 ; 1553-8389
    ISSN (online) 1878-0938
    ISSN 1553-8389
    DOI 10.1016/j.carrev.2023.12.009
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    Zs.A 5562: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (2.OG)
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  6. Article ; Online: Canada Health Act: defend or reform.

    Norton, Jonathan A

    CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne

    2017  Volume 189, Issue 4, Page(s) E170

    MeSH term(s) Canada ; Health Care Reform ; National Health Programs ; Politics
    Language English
    Publishing date 2017--30
    Publishing country Canada
    Document type Letter ; Comment
    ZDB-ID 215506-0
    ISSN 1488-2329 ; 0008-4409 ; 0820-3946
    ISSN (online) 1488-2329
    ISSN 0008-4409 ; 0820-3946
    DOI 10.1503/cmaj.732487
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  7. Article ; Online: A lack of evidence for neurophysiological intraoperative monitoring?

    Norton, Jonathan

    Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology

    2015  Volume 127, Issue 8, Page(s) 2968–2969

    MeSH term(s) Humans ; Intraoperative Neurophysiological Monitoring ; Monitoring, Intraoperative ; Neurophysiological Monitoring ; Neurosurgical Procedures
    Language English
    Publishing date 2015-09-21
    Publishing country Netherlands
    Document type Letter ; Comment
    ZDB-ID 1463630-x
    ISSN 1872-8952 ; 0921-884X ; 1388-2457
    ISSN (online) 1872-8952
    ISSN 0921-884X ; 1388-2457
    DOI 10.1016/j.clinph.2015.09.006
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    Ui II Zs.140: Show issues Location:
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  8. Article ; Online: Perioperative Stroke Detected Using Novel SSEP Analysis.

    Kelly, Michael E / Peeling, Lissa / Norton, Jonathan

    Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society

    2021  Volume 38, Issue 4, Page(s) e17–e18

    Abstract: Summary: Using a previously described technique that measures the "velocity" of the upswing of the median nerve SSEP, we identified an ischemic event during a carotid surgery that did not meet traditional alarm criteria. Mechanical thrombectomy ... ...

    Abstract Summary: Using a previously described technique that measures the "velocity" of the upswing of the median nerve SSEP, we identified an ischemic event during a carotid surgery that did not meet traditional alarm criteria. Mechanical thrombectomy successfully removed a thrombus, and the patient experienced a good recovery. Analysis of the SSEP waveform may allow for the detection of events missed with traditional alarm criteria.
    MeSH term(s) Endarterectomy, Carotid/adverse effects ; Evoked Potentials, Somatosensory ; Humans ; Intraoperative Complications/diagnosis ; Intraoperative Complications/etiology ; Intraoperative Complications/surgery ; Median Nerve ; Stroke/diagnosis
    Language English
    Publishing date 2021-02-09
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 605640-4
    ISSN 1537-1603 ; 0736-0258
    ISSN (online) 1537-1603
    ISSN 0736-0258
    DOI 10.1097/WNP.0000000000000824
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    Zs.A 1921: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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  9. Article ; Online: Obese patients with new onset atrial fibrillation/flutter have higher risk of hospitalization, cardioversions, and ablations.

    Norton, Jonathan / Foy, Andrew / Ba, Djibril M / Liu, Guodong / Leslie, Doug / Zhang, Yue / Naccarelli, Gerald V

    American heart journal plus : cardiology research and practice

    2024  Volume 40, Page(s) 100375

    Abstract: Obesity significantly increases the risk of developing atrial fibrillation (AF) and atrial flutter (AFL) and evidence from randomized trials indicates that weight loss may reduce the burden of AF/AFL in obese patients; however, the relationship between ... ...

    Abstract Obesity significantly increases the risk of developing atrial fibrillation (AF) and atrial flutter (AFL) and evidence from randomized trials indicates that weight loss may reduce the burden of AF/AFL in obese patients; however, the relationship between obesity and healthcare resource utilization in AF/AFL patients is lacking. We sought to assess this relationship in patients with newly diagnosed AF/AFL in a nationally representative cohort of the United States by using the MarketScan® claims database. International Classification of Diseases, Tenth Revision [ICD 10] diagnosis codes were used to select individuals with a new diagnosis of AF/AFL in 2017 and 2018, adjudicate baseline variables and to classify them according to obesity status. Patients were followed for two years at which point all data was censored. The primary outcome of the study was hospitalizations due to AF/AFL. Cox proportional hazards regression models were used to assess the adjusted hazard ratio for obese versus non-obese patients. There were 55,271 patients with new onset AF/AFL, which included 43,314 (78.4 %) who were non-obese and 11,957 (21.6 %) who were obese. There were significantly more males than females among non-obese (65.3 % vs. 34.7 %) and obese individuals (62.3 % vs. 37.7 %). The average age (SD) was similar in the non-obese (54.5 (9.7)) and obese cohorts (54.7 (8.4)), respectively. The incidence of Emergency Department visits (4.0 % vs. 6.5 %), hospitalizations (5.5 % vs. 10.7 %), cardioversions (6.6 % vs. 12.7 %), and ablation procedures (5.3 % vs. 8.6 %) were significantly increased among obese patients.
    Language English
    Publishing date 2024-02-29
    Publishing country United States
    Document type Journal Article
    ISSN 2666-6022
    ISSN (online) 2666-6022
    DOI 10.1016/j.ahjo.2024.100375
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  10. Article: Is hemifacial spasm of peripheral or central origin?

    Norton, Jonathan

    The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques

    2013  Volume 41, Issue 2, Page(s) 142

    MeSH term(s) Evoked Potentials, Motor ; Hemifacial Spasm/physiopathology ; Humans ; Motor Neurons
    Language English
    Publishing date 2013-12-27
    Publishing country England
    Document type Editorial ; Comment
    ZDB-ID 197622-9
    ISSN 0317-1671
    ISSN 0317-1671
    DOI 10.1017/s0317167100016498
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