Basic Research in Cardiology

, 108:383

Postconditioning attenuates no-reflow in STEMI patients

  • Nathan Mewton
  • Hélène Thibault
  • François Roubille
  • Olivier Lairez
  • Gilles Rioufol
  • Catherine Sportouch
  • Ingrid Sanchez
  • Cyrille Bergerot
  • Thien Tri Cung
  • Gérard Finet
  • Denis Angoulvant
  • Didier Revel
  • Eric Bonnefoy-Cudraz
  • Meyer Elbaz
  • Christophe Piot
  • Inesse Sahraoui
  • Pierre Croisille
  • Michel Ovize
Original Contribution

DOI: 10.1007/s00395-013-0383-8

Cite this article as:
Mewton, N., Thibault, H., Roubille, F. et al. Basic Res Cardiol (2013) 108: 383. doi:10.1007/s00395-013-0383-8

Abstract

After acute myocardial infarction, the presence of no-reflow (or microvascular obstruction: MVO) has been associated with adverse left ventricular (LV) remodeling and worse clinical outcome. This study examined the effects of mechanical ischemic postconditioning on early and late MVO size in acute ST-elevation myocardial infarction (STEMI) patients. Fifty patients undergoing primary coronary angioplasty for a first STEMI with TIMI grade flow 0–1 and no collaterals were randomized to ischemic postconditioning (PC) (n = 25) or control (n = 25) groups. Ischemic PC consisted in the application of four consecutive cycles of a 1-min balloon occlusion, each followed by a 1-min deflation at the onset of reperfusion. Early (3 min post-contrast) and late (10 min post-contrast) MVO size were assessed by contrast-enhanced cardiac-MRI within 96 h after reperfusion. PC was associated with smaller early and late MVO size (3.9 ± 4.8 in PC versus 7.8 ± 6.6 % of LV in controls for early MVO, P = 0.02; and 1.8 ± 3.1 in PC versus 4.1 ± 3.9 % of LV in controls for late MVO; P = 0.01). This significant reduction was persistent after adjustment for thrombus aspiration, which neither had any significant effect on infarct size, nor on early or late MVO (P = NS for all). Attenuation of MVO was associated to infarct size reduction. Mechanical postconditioning significantly reduces MVO in patients with acute STEMI treated with primary angioplasty.

Keywords

Magnetic resonance imagingMicrovascular obstructionReperfusion injuryST-elevation myocardial infarctionPostconditioning

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Nathan Mewton
    • 1
    • 5
    • 6
    • 8
  • Hélène Thibault
    • 1
    • 5
  • François Roubille
    • 3
    • 4
  • Olivier Lairez
    • 2
  • Gilles Rioufol
    • 1
  • Catherine Sportouch
    • 3
    • 4
  • Ingrid Sanchez
    • 1
    • 6
  • Cyrille Bergerot
    • 1
  • Thien Tri Cung
    • 3
    • 4
  • Gérard Finet
    • 1
  • Denis Angoulvant
    • 7
  • Didier Revel
    • 6
  • Eric Bonnefoy-Cudraz
    • 1
  • Meyer Elbaz
    • 2
  • Christophe Piot
    • 3
    • 4
  • Inesse Sahraoui
    • 1
  • Pierre Croisille
    • 6
  • Michel Ovize
    • 1
    • 5
  1. 1.Cardiology Division, Centre d’Investigation Clinique de Lyon (CIC)Groupement Hospitalier Est, Hôpital Louis Pradel, Hospices Civils de LyonBronFrance
  2. 2.Service de Cardiologie, Hôpital RangueilUniversité Paul SabatierToulouseFrance
  3. 3.INSERM U661MontpellierFrance
  4. 4.Hôpital Arnaud de VilleneuveUniversité de Montpellier I and IIMontpellierFrance
  5. 5.INSERM UMR-1060, CarMeN Laboratory, Faculté de Médecine Lyon EstUniversité Claude Bernard Lyon1LyonFrance
  6. 6.CREATIS-LRMN, CNRS UMR 5220, INSERM U630Université Claude Bernard Lyon 1VilleurbanneFrance
  7. 7.Centre Hospitalier Universitaire de Tours, Hôpital TrousseauUniversité François RabelaisToursFrance
  8. 8.Hôpital Louis PradelLyon Cedex 03France