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Influence of functional deficiency of complement mannose-binding lectin on outcome of patients with acute ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention.

Publication ,  Journal Article
Trendelenburg, M; Theroux, P; Stebbins, A; Granger, C; Armstrong, P; Pfisterer, M
Published in: Eur Heart J
May 2010

AIMS: Experimental data point towards a favourable effect of low serum concentrations of complement mannose-binding lectin (MBL) on myocardial ischaemia/reperfusion (I/R) injury. As comparable data on the role of MBL in human I/R injury is lacking, we investigated the influence of low serum MBL concentrations on mortality of patients with acute ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI). METHODS AND RESULTS: Mannose-binding lectin was determined in 890 acute STEMI patients that were prospectively recruited in the APEX-AMI trial. This trial had a primary endpoint of death through Day 30 and secondary endpoints of death through Day 90 and the composite of death, cardiogenic shock, or congestive heart failure (CHF) through Days 30 and 90. Samples were taken immediately before PCI and the analysis of MBL limited to patients having received placebo. Patients with serum MBL levels of or below 100 ng/mL were considered to be functionally deficient. Of the 890 patients, 127 had functional MBL deficiency (14.3%). Characteristics of patients with MBL deficiency and those with MBL levels >100 ng/mL did not differ. In patients with MBL deficiency, there was 1 death (0.79%) compared with 42 deaths (5.51%) in patients with MBL levels >100 ng/mL (P = 0.0233) representing an absolute and relative lower mortality in MBL deficient patients of 4.7 and 85%, respectively. Functional MBL deficiency, however, was not associated with decreased risk of the combined endpoints of death and shock or death, shock, and CHF, respectively. CONCLUSION: Functional deficiency of complement MBL is associated with reduced mortality in patients with STEMI undergoing PCI. This unique finding suggests that a component of the innate immune system affects mortality in STEMI patients undergoing primary PCI. TRIAL REGISTRATION: clinicaltrials.gov, Identifier: NCT00091637.

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Published In

Eur Heart J

DOI

EISSN

1522-9645

Publication Date

May 2010

Volume

31

Issue

10

Start / End Page

1181 / 1187

Location

England

Related Subject Headings

  • Single-Chain Antibodies
  • Shock, Cardiogenic
  • Prospective Studies
  • Myocardial Reperfusion Injury
  • Myocardial Infarction
  • Middle Aged
  • Mannose-Binding Lectin
  • Male
  • Kaplan-Meier Estimate
  • Humans
 

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Trendelenburg, M., Theroux, P., Stebbins, A., Granger, C., Armstrong, P., & Pfisterer, M. (2010). Influence of functional deficiency of complement mannose-binding lectin on outcome of patients with acute ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention. Eur Heart J, 31(10), 1181–1187. https://doi.org/10.1093/eurheartj/ehp597
Trendelenburg, Marten, Pierre Theroux, Amanda Stebbins, Christopher Granger, Paul Armstrong, and Matthias Pfisterer. “Influence of functional deficiency of complement mannose-binding lectin on outcome of patients with acute ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention.Eur Heart J 31, no. 10 (May 2010): 1181–87. https://doi.org/10.1093/eurheartj/ehp597.
Journal cover image

Published In

Eur Heart J

DOI

EISSN

1522-9645

Publication Date

May 2010

Volume

31

Issue

10

Start / End Page

1181 / 1187

Location

England

Related Subject Headings

  • Single-Chain Antibodies
  • Shock, Cardiogenic
  • Prospective Studies
  • Myocardial Reperfusion Injury
  • Myocardial Infarction
  • Middle Aged
  • Mannose-Binding Lectin
  • Male
  • Kaplan-Meier Estimate
  • Humans