Implementation of a Regional STEMI Network in North Cairo (Egypt): Impact on The Management and Outcome of STEMI Patients.

Background: Regional ST-segment-elevation myocardial infarction (STEMI) networks facilitate timely performance of primary percutaneous coronary intervention (PPCI), reduce mortality and improve outcomes. Few data exist on the feasibility and impact of regional STEMI networks in developing countries.

Aim Of The Work: The aim of this study was to examine the feasibility and impact of establishing a regional STEMI network on the management and outcomes of STEMI patients in north Cairo.

Echocardiographic assessment of right ventricular functions in patients with proximal right coronary artery chronic total occlusion.

To assess right ventricular functions by echocardiography in patients with proximal right coronary artery (RCA) CTO and correlating it with clinical and angiographic variables. We studied 60 consecutive patients with CTO of the proximal RCA and no other significant lesions in the left coronary system. Echocardiography was performed in order to measure left ventricular (LV) dimensions, LVEF, RV end diastolic area (RVEDA), RV end systolic area (RVESA), RV fractional area change (RVFAC), tricuspid annular plane systolic excursion (TAPSE), Doppler myocardial performance index (MPI), trans-tricuspid E and A waves, E/A ratio, S', e' and a'.