Intraoperative neurophysiologic monitoring with Hoffmann reflex during thoracic spine surgery

Feyissa, Anteneh M.; Tummala, Sudhakar

doi:10.1016/j.jocn.2015.01.008

Cited by 12 publications

(2 citation statements)

References 15 publications

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“…Post-operative deficits are correlated with an amplitude drop exceeding 90% of baseline but not a 50% drop in amplitude or transient changes (Leppanen, 2012). It has been hypothesized that slow suppression of H-reflexes may reflect ischemic spinal cord compromise while abrupt suppression may be secondary to mechanical injury (Feyissa and Tummala, 2015). In our case, there was a slightly progressive decrement in amplitude in the right H-reflex and a sudden disappearance in the left one (Fig.…”

Section: Discussionmentioning

confidence: 99%

Suprasegmental neurophysiological monitoring with H reflex and TcMEP in spinal surgery. Transient loss due to hypotension. A case report

Saponaro-González

Pérez-Lorensu

Rivas-Navas

et al. 2016

Clinical Neurophysiology Practice

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Section: Discussionmentioning

confidence: 99%

Suprasegmental neurophysiological monitoring with H reflex and TcMEP in spinal surgery. Transient loss due to hypotension. A case report

Saponaro-González

Pérez-Lorensu

Rivas-Navas

et al. 2016

Clinical Neurophysiology Practice

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“…13 Several case series of patients undergoing heterogeneous surgical procedures with IONM obtained positive results without new postoperative neurologic deficits in patients ranging from 4 to 85 years old. [14][15][16][17] To our knowledge, no clinical study has yet analyzed the changes in IONM signals, specifically in the elderly population ( $ 60 years) undergoing the most common neurosurgical procedures. The aim of the present study is to describe and compare the changes in IONM signals during surgeries in adult patients aged 18 to 59 years versus those aged 60 years and older.…”

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confidence: 99%

Neurophysiological Intraoperative Monitoring in the Elderly

Krzeptowsky

San-Juan

Camilli

et al. 2020

Journal of Clinical Neurophysiology

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Introduction: Intraoperative neurophysiological monitoring (IONM) is widely used to prevent nervous system injury during surgeries in elderly patients. However, there are no studies that describe the characteristics and changes in neurophysiological tests during the IONM of patients aged 60 years and older. The study aims to describe and compare IONM changes during surgeries in adult patients aged 18 to 59 years with those aged 60 years and older.Methods: We performed a comparative retrospective study of patients aged 18 to 59 years versus those 60 aged years and older who underwent IONM during 2013 to 2018 in Mexico City. Sociodemographic characteristics were recorded and compared. Intraoperative neurophysiological monitoring techniques, their changes, and surgical procedures for both groups were analyzed and compared using descriptive statistics, Mann-Whitney U, Fisher, and x 2 tests. The sensitivity, specificity, and positive and negative predictive values were calculated.Results: In total, 195 patients were analyzed: 104 patients, 68.63 6 6.54 years old (elderly group) and 91 patients, 42.3 6 10.5 years old (younger group). No differences were found in the rates of signal change during IONM between the group of elderly patients and the younger group. The sensitivity, specificity, and positive and negative predictive values were 80%, 99%, 80%, and 99%, respectively.Conclusions: Elderly patients have a similar rate of changes in IONM signals compared with younger patients during heterogeneous surgeries guided by IONM.

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The H-Reflex and F-Response

Bamford

Davis

2019

Principles of Neurophysiological Assessment, Mapping, and Monitoring

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Intraoperative neurophysiologic monitoring with Hoffmann reflex during thoracic spine surgery

Cited by 12 publications

References 15 publications

Suprasegmental neurophysiological monitoring with H reflex and TcMEP in spinal surgery. Transient loss due to hypotension. A case report

Suprasegmental neurophysiological monitoring with H reflex and TcMEP in spinal surgery. Transient loss due to hypotension. A case report

Neurophysiological Intraoperative Monitoring in the Elderly

The H-Reflex and F-Response

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