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Giant negative T waves after maxillofacial surgery

Y Kim1, T Shibutani, Y Hirota

  • 1Department of Dental Anesthesiology, Osaka University, Faculty of Dentistry, Japan.

Anesthesia Progress
|January 1, 1993
PubMed
Summary

A patient experienced significant T-wave inversion after maxillofacial surgery anesthesia. This electrocardiogram abnormality resolved over four months, with the cause remaining unclear.

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Area of Science:

  • Cardiology
  • Anesthesiology
  • Surgical Neurology

Background:

  • Electrocardiogram (ECG) monitoring is crucial for detecting cardiac events during and after surgical procedures.
  • Maxillofacial surgery involves complex procedures that can potentially impact the autonomic nervous system.
  • Preoperative ECG in this patient revealed only a single premature ventricular depolarization, with no intraoperative abnormalities.

Observation:

  • Postoperatively, the patient exhibited progressive T-wave inversion across multiple ECG leads.
  • The T-wave inversion reached -10 mm in lead V3, meeting criteria for 'giant negative T waves' by postoperative day 2.
  • The observed ECG changes were transient, with T waves normalizing around 4 months post-surgery.

Findings:

  • The development of profound T-wave inversion following maxillofacial surgery anesthesia is a notable clinical observation.

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  • The transient nature of the T-wave inversion suggests a reversible cardiac phenomenon.
  • Differential diagnoses include sympathetic nerve trauma or myocardial infarction, though definitive causality was not established.

    • Implications:

    • This case highlights the potential for significant, albeit temporary, ECG changes after specific surgical interventions.
    • Further investigation may be warranted to understand the mechanisms linking maxillofacial surgery to cardiac repolarization abnormalities.
    • Clinicians should be aware of such postoperative ECG findings and consider their potential etiologies in the absence of clear cardiac events.