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Pathophysiology of the contrast media-induced nephropathy (CIN) in patients undergoing coronary interventions

R P Franke1, F Jung

  • 1Department of Biomaterials, Central Institute for Biomedical Engineering, University of Ulm, Ulm, Germany. rp.franke@web.de

Clinical Hemorheology and Microcirculation
|September 7, 2012
PubMed

Insights

Contrast media-induced nephropathy (CIN) is a serious complication of radiographic contrast media (RCM) administration. Different RCM types cause varying cellular and microcirculatory effects, impacting CIN development, particularly in vulnerable patients.

Area of Science:

  • Nephrology
  • Radiology
  • Cardiology

Background:

  • Contrast media-induced nephropathy (CIN) is a recognized complication following intra-arterial radiographic contrast media (RCM) administration.
  • CIN presents diagnostic challenges due to a lack of a uniform definition and is linked to adverse short- and long-term outcomes.
  • Reported incidence of CIN post-coronary angiography ranges from 4-20%, with a higher all-cause mortality rate (9% vs. 2%) in affected patients.

Purpose of the Study:

  • To investigate the impact of different radiographic contrast media (RCM) on cellular morphology and microcirculation.
  • To explore the potential relationship between RCM-induced effects and the development of contrast media-induced nephropathy (CIN).
  • To assess the variability in CIN occurrence, even in low-risk patients, possibly influenced by RCM type.

Main Methods:

  • Review of clinical evidence and animal models examining RCM effects on erythrocytes and endothelial cells.
  • Analysis of morphological changes and microcirculatory disturbances associated with different RCM agents.
  • Comparison of cellular and microcirculatory effects of specific RCM, such as iodixanol and iopromide.

Main Results:

  • Significant differences in erythrocyte and endothelial cell morphology were observed based on the RCM used.
  • RCM administration led to varying degrees of microcirculatory disorders in both patients and animal models.
  • Iopromide induced more pronounced disturbances in capillary perfusion and myocardial oxygen tension compared to iodixanol.

Conclusions:

  • The type of RCM administered significantly influences cellular and microcirculatory responses.
  • While iodixanol showed minimal effects and iopromide induced stronger disturbances, the direct link to CIN development remains unclear.
  • Further research is needed to elucidate whether these RCM-induced effects directly contribute to the pathogenesis of CIN.

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