Directional Association Measurement in Contingency Tables: Genomic Case.

Analysis of large data sets is currently a major challenge. Strong efforts are being undertaken to tackle this problem by developing new methods or modifying existing ones. The Z association method is a new method for describing directional association in contingency tables.

Reproducibility of grayscale and radiofrequency IVUS data acquisition in stented coronary arteries.

Objectives: Variability in data acquisition from intervened coronary arteries could represent a source of error that has implications for the design of serial stent studies. We assessed inter-pullback reproducibility of volumetric grayscale and radiofrequency intravascular ultrasound (IVUS) data in stented coronary arteries.

Design: Fifteen patients with coronary artery lesions treated with stent implantation were included and examined with two separate pullbacks using the Eagle Eye Gold-phased array 20 MHz IVUS catheter (Volcano).

Borderline trend towards long-term mortality benefit from drug eluting stents implantation in ST-elevation myocardial infarction patients in Poland-data from NRDES registry.

Objectives: To analyze long-term outcome of ST-Elevation Myocardial Infarction (STEMI) and non-STEMI (NSTEMI) patients treated with Drug Eluting Stents (DES) stents with regard to mortality and stent thrombosis rates based on the national Polish PCI registry database.

Background: Only a few studies suggested potential trend towards lower mortality in STEMI patients treated with DES. Current European Society of Cardiology STEMI guidelines recommend DES use only with one restriction to suspected patient poor compliance or contraindication to dual antiplatelet therapy.