Neuroanesthesia & neurocritical care

Neural networks for estimation of facial palsy after vestibular schwannoma surgery

J Clin Monit ComputPublished Prediction model development study

An erratum to this article was published (J Clin Monit Comput, Jun 2023 ↗)

Authors' conclusion

NN based on preoperative HB, traintime and tumor size provide good estimations of postoperative HB.

Study context

Population
Patients undergoing vestibular schwannoma surgery with free-running EMG
Participants
200 consecutive patients
Comparison
NN input sets: traintime, preoperative House and Brackmann (HB) grade and tumor size vs tumor size or mean traintime alone
Outcome
Agreement of estimated vs clinical postoperative House and Brackmann (HB) grades
Methodological detailsconsecutive patients, neural feed-forward networks
  • Consecutive patients
  • Neural feed-forward networks

Main finding

As reported in the abstract

Estimation of postoperative HB grades (chi2)

Traintime + preoperative HB + tumor size

54.8

chi2

Tumor size

30.6

chi2

Mean traintime

31.9

chi2

Further findings

Added inputs: separate intermediate nerve or A-train cluster detection

Did not improve performance

Removal of A-train cluster traintime (patients without separate intermediate nerve, subgroup)

Improved results (chi2 = 54.8 vs. 51.3)

Original publication

Neural networks for estimation of facial palsy after vestibular schwannoma surgery. J Clin Monit Comput. Published 4 November 2022. doi:10.1007/s10877-022-00928-9

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