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Articles by J Mehilli
Total Records ( 3 ) for J Mehilli
  R Wessely , T Koppara , C Bradaric , M Vorpahl , S Braun , S Schulz , J Mehilli , A Schomig , A Kastrati and for the Contrast Media and Nephrotoxicity Following Coronary Revascularization by Angioplasty (CONTR

Background— No clinical trial has yet focused on contrast-mediated nephrotoxicity in patients with chronic renal failure exclusively undergoing percutaneous coronary intervention (PCI). Therefore, the aim of this study was to compare the effect of contemporary contrast media on nephrotoxicity in this high-risk patient population.

Methods and Results— This prospective, randomized, double-blind, comparative clinical trial randomly selected 939 patients with chronic renal failure undergoing coronary angiography with potential PCI to receive either the iso-osmolar contrast medium iodixanol or the low-osmolar contrast medium iomeprol. Of those 939 patients, 615 received diagnostic angiography only and were not included in the primary study analysis, but were followed up in a registry. Three hundred twenty-four patients underwent PCI, of which one-half received iodixanol or iomeprol, respectively, and were included in the primary study analysis. The primary end point was the peak increase in S-creatinine during hospitalization for PCI. Maximum increase in S-creatinine after PCI was lower than expected and thus impaired the power of the study. It was not significantly different between the 2 contrast groups (0.19±0.40 mg/dL for iodixanol and 0.21±0.34 mg/dL for iomeprol; P=0.53). Albeit contrast media-induced nephropathy rates were lower with iodixanol (22.2% compared with 27.8% for iomeprol), this difference was not statistically different (P=0.25). Subgroup analysis suggested a favorable outcome regarding nephrotoxicity in patients who received higher contrast volumes (>340 mL) in the iodixanol group (Pinteraction=0.016).

Conclusions— Routine use of iso-osmolar contrast medium is not associated with a significant reduction of nephrotoxicity compared with low-osmolar contrast medium in patients with chronic renal failure undergoing PCI. However, a positive effect was seen in the iso-osmolar contrast group for patients receiving high amounts of contrast medium, which awaits confirmation of a specifically designed randomized clinical trial.

Clinical Trial Registration— Identifier: NCT00390585

  G Ndrepepa , K Tiroch , D Keta , M Fusaro , M Seyfarth , J Pache , J Mehilli , A Schomig and A. Kastrati

Background— The investigation of no-reflow phenomenon after percutaneous coronary intervention (PCI) in patients with acute ST-segment–elevation myocardial infarction has therapeutic implications. We investigated the predictive factors, persistence in time, and impact of no reflow on myocardial salvage, ventricular function, and mortality.

Methods and Results— The study included 1140 patients with ST-segment–elevation myocardial infarction undergoing primary PCI and paired scintigraphic examinations (before intervention and 7 to 14 days thereafter). After primary PCI, 108 patients had no reflow and 1032 patients had normal coronary flow. The median salvage index was 0.34 (interquartile range, 0.15, 0.49) in patients with no reflow versus 0.55 (interquartile range, 0.29, 0.81) in patients with normal flow (P<0.001). Left ventricular ejection fraction at 6 months after PCI was 47.7±13.1% in the no-reflow group versus 54.2±13.9% in the group with normal flow after PCI (P<0.001). In 80.3% of patients with no reflow, normalization of blood flow >6 months after PCI occurred and correlated with improvement in the left ventricular ejection fraction. Independent predictors of no reflow were residual flow in the infarct-related artery (P<0.001), initial perfusion defect (P=0.03), C-reactive protein (P<0.001), and previous myocardial infarction (P=0.013). Kaplan–Meier estimates of 1-year mortality were 16.7% (n=18) in patients with no reflow versus 5.5% (n=56) in patients with normal flow (hazard ratio, 3.35; 95% CI, 1.97 to 5.69; P<0.001).

Conclusions— No reflow after primary PCI was associated with reduced myocardial salvage, larger infarct size, worse left ventricular ejection fraction at 6 months, and increased risk of 1-year mortality. In 4 of 5 patients with no reflow after PCI, restoration of normal flow occurred 6 months after reperfusion.

  I Ott , S Schulz , J Mehilli , S Fichtner , M Hadamitzky , K Hoppe , T Ibrahim , S Martinoff , S Massberg , K. L Laugwitz , J Dirschinger , M Schwaiger , A Kastrati , A Schmig and for the REVIVAL 3 Study Investigators

Erythropoietin improves myocardial function in experimental models of myocardial infarction. The aim of the present study was to determine the value of erythropoietin in patients with acute ST-elevation myocardial infarction.

Methods and Results—

This randomized, double-blind study included 138 patients admitted with acute ST-elevation myocardial infarction and treated with primary percutaneous coronary intervention. Patients were randomly assigned to receive epoetin-β (3.33x104 U, n=68) or placebo (n=70) immediately and at 24 and 48 hours after percutaneous coronary intervention. The primary end point was left ventricular ejection fraction after 6 months measured by MRI. Other end points included infarct size at 5 days and 6 months. Clinical adverse events (death, recurrent myocardial infarction, stroke, and infarct-related artery revascularization) were investigated at 30 days and 6 months. Left ventricular ejection fraction at 6-month follow-up was 52.0±9.1% in the erythropoietin group compared with 51.8±9.3% in the placebo group (P=0.92). Five days after percutaneous coronary intervention, left ventricular ejection fraction was 49.4±8.0% in the erythropoietin group and 50.8±7.3% in the placebo group (P=0.32); infarct size was 26.8±20.9% and 28.3±24.4% (P=0.76) and decreased to 17.3±14.3% and 20.9±16.4% at 6-month follow-up (P=0.27). The cumulative 6-month incidence of death, recurrent myocardial infarction, stroke or target vessel revascularization was 13.2% in the erythropoietin group and 5.7% in the placebo group (hazard ratio, 2.36; 95% confidence interval, 0.73 to 7.66; P=0.15).


In patients with acute ST-elevation myocardial infarction treated with primary percutaneous coronary intervention, erythropoietin treatment did not improve left ventricular ejection fraction or reduce infarct size but may increase clinical adverse events.

Clinical Trial Registration—

URL: Unique identifier: NCT00390832.

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