Left ventricular contractile reserve as a determinant of adverse clinical outcomes: a systematic review

Paul M. Thein, Sam Mirzaee, James D. Cameron, Arthur Nasis

Research output: Contribution to journalReview ArticleResearchpeer-review

1 Citation (Scopus)

Abstract

An abnormal left ventricular contractile reserve is often seen in patients undergoing stress echocardiogram and may indicate the presence of obstructive coronary artery disease. The techniques and indexes used to identify abnormal left ventricular contractile response and its prognostic value in the absence of known causes has not been well studied. To describe the characteristics and clinical outcomes associated with an abnormal left ventricular contractile response, we performed a systematic review that identified 27 eligible studies. A diverse range of indices were utilised to measure left ventricular contractile reserve, most commonly Δleft ventricular ejection fraction in 11 studies. Dobutamine stress echocardiogram was the most commonly performed modality (19 studies) followed by exercise stress echocardiogram (4 studies), dipyridamole stress echocardiogram (2 studies), invasive hemodynamic measurement (1 study) and dobutamine stress magnetic resonance imaging (1 study). All but one study demonstrated a significant association between the absence of left ventricular contractile reserve and increased rate of cardiovascular events, cardiac death and all-cause mortality.

Original languageEnglish
Pages (from-to)186-197
Number of pages12
JournalInternal Medicine Journal
Volume52
Issue number2
DOIs
Publication statusPublished - Feb 2022

Keywords

  • adverse outcome
  • clinical outcome
  • contractile reserve
  • echocardiography
  • left ventricular contractile response to stress

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