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The QT interval following carotid artery resection
C H Rassekh1, K C Dellsperger, B A Bollen
1Department of Otolaryngology-Head and Neck Surgery, University of Iowa Hospitals and Clinics, Iowa City, USA.
Head & Neck
|May 1, 1995
Summary
Carotid artery resection did not significantly alter QT intervals in a prospective study. However, retrospective data suggested potential QT interval changes after right-sided carotid resection, warranting further investigation.
Area of Science:
- Cardiovascular Surgery
- Autonomic Nervous System
- Cardiac Electrophysiology
Background:
- Radical neck dissection can prolong the QT interval due to autonomic system trauma, potentially causing arrhythmias.
- Carotid artery resection may increase the risk of dangerous cardiac arrhythmias.
Purpose of the Study:
- To evaluate the impact of carotid artery resection on QT intervals.
- To determine if surgical side (left vs. right) influences QT interval changes.
Main Methods:
- Prospective study of 8 patients undergoing carotid resection with pre- and post-operative electrocardiograms.
- Retrospective analysis of 11 patients who underwent carotid resection.
- Measurement of corrected QT intervals (QTc) to assess cardiac electrical activity.
Main Results:
- No significant QTc changes were observed in the prospective group after left or right carotid resection.
- The retrospective group showed significant QTc changes following right carotid resection (n=5), but not left resection (n=6).
Conclusions:
- EKG changes after carotid resection may vary based on surgical technique and patient anatomy.
- Further controlled prospective studies are necessary to confirm the incidence of QT interval changes in radical neck surgery.