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Different types of renal dysfunction in patients with acute myocardial infarction treated with percutaneous coronary

Jacek Kowalczyk1, Radoslaw Lenarczyk, Oskar Kowalski

  • 11st Department of Cardiology, Medical University of Silesia, Silesian Center for Heart Diseases, Zabrze, Poland. jacekmed@poczta.onet.pl

Journal of Interventional Cardiology
|March 30, 2007
PubMed

Insights

Chronic kidney disease (CKD) significantly worsens long-term survival in acute myocardial infarction (AMI) patients undergoing percutaneous coronary intervention (PCI). Contrast-induced nephropathy (CIN) further elevates mortality risk in these vulnerable patients.

Area of Science:

  • Cardiology
  • Nephrology
  • Clinical Medicine

Background:

  • Prognostic impact of renal dysfunction in acute myocardial infarction (AMI) patients post-percutaneous coronary intervention (PCI) remains unclear.
  • Renal dysfunction is common in AMI patients, potentially affecting outcomes after PCI.

Purpose of the Study:

  • To investigate the prognostic significance of chronic kidney disease (CKD) and its subtypes in AMI patients treated with PCI.
  • To determine the impact of contrast-induced nephropathy (CIN) on long-term survival in AMI patients with CKD.

Main Methods:

  • Retrospective analysis of 1,486 consecutive AMI patients treated with PCI.
  • Patients categorized into CKD (eGFR <60 mL/min/1.73 m2) and normal renal function groups.
  • CKD group further stratified into those with (CKD + CIN) and without (CKD-CIN) contrast-induced nephropathy.

Main Results:

  • Higher remote mortality rates observed in the CKD group (34.6%) compared to controls (9.1%).
  • CKD was an independent predictor of all-cause death (HR 1.77).
  • CKD + CIN subgroup showed significantly higher mortality (47.0%) and was an independent risk factor (HR 2.16) compared to CKD-CIN (31.0%).

Conclusions:

  • CKD negatively impacts long-term survival in AMI patients undergoing PCI.
  • Contrast-induced nephropathy exacerbates mortality risk in CKD patients with AMI.
  • Identifying and managing renal dysfunction, especially CIN, is crucial for improving outcomes in AMI patients.
Abstract

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