Failure of negative dipyridamole thallium scans to predict perioperative myocardial ischaemia and infarction

Lee A. Fleisher, Ann H. Nelson, Stanley H. Rosenbaum

Research output: Contribution to journalArticlepeer-review

Abstract

Three cases of postoperative myocardial infarction are reported inpatients with normal or fixed defects on preoperative dipyridamole thallium scans (interpreted as "negative" for active cardiac ischaemic risk). All patients were monitored with an ambulatory electrocardiographic recorder from the evening before surgery through the first two postoperative days. Two of the patients demonstrated preoperative or early postoperative ischaemia, suggesting that the test was a false negative. The third patient did not demonstrate ischaemia during the period of monitoring, but developed a myocardial infarction during the third postoperative day, suggesting progression of the underlying coronary artery disease. Preoperative dipyridamole thallium imaging may result in false negative scans in selected high-risk populations.

Original languageEnglish (US)
Pages (from-to)179-183
Number of pages5
JournalCanadian Journal of Anaesthesia
Volume39
Issue number2
DOIs
StatePublished - Feb 1992

Keywords

  • heart: ischaemia, infarction
  • measurement techniques: dipyridamole thallium imaging

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

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