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Aims To define a benchmark target for an invasive strategy (IS) rate appropriate for performance assessment in intermediate-to-high risk non-ST-segment elevation acute coronary syndromes (NSTE-ACS). Methods and results During the BLITZ-4 campaign, which aimed at improving the quality of care in 163 Italian coronary care units, 4923/5786 (85.1%) of consecutive patients admitted with NSTE-ACS with troponin elevation and/or dynamic ST-T changes on the electrocardiogram were managed with IS. The reasons driving the choice (RDC) for a conservative strategy (CS) in the remaining 863 patients were prospectively recorded. In 33.8%, CS was mandatory because of patients refusal, known coronary anatomy or death before coronary angiography; in 52.8% it was clinically justified because of active stroke, bleeding, advanced frailty, severe comorbidities, contraindication to antiplatelet therapy or because they were considered to be at low risk; only in 13.4% the reasons, such as renal failure, advanced age or other, were less stringent. As compared to patients undergoing IS, those in the CS were 12years older and had significantly more severe comorbidities. The in-hospital and 6-month all-cause mortality were 9.0% vs 0.9% and 22.0% vs 3.9% in CS and IS groups respectively (p Conclusion As the RDC for CS were clinically correct in vast majority of cases the observed 85% invasive strategy rate may be considered as the desirable benchmark target in patients with NSTE-ACS. For the same reason, it remains questionable if the higher rate of IS could have improved the prognosis in CS patients, despite their highly unfavorable prognosis.

Background Chronic renal dysfunction (RD) frequently coexists with heart failure (HF) and influences outcome. Patients with acute HF (AHF) and severe RD are frequently excluded in the trials. We characterized these subjects and assessed incidence and predictors of in-hospital and one-year mortalities. Methods We selected the 455 patients included in the "IN-HF Outcome" Italian registry belonging to the lowest quartile of estimated glomerular filtration rate (eGFR < 40 ml/min/1.73 m2). Results Mean eGFR at entry in severe RD patients was 28 ± 9 ml/min/1.73 m2. Compared to 1368 patients with more preserved eGFR, they were older, with more co-morbidities and more frequently ischemic etiology of HF. In-hospital and one-year all-cause mortality rates were 14% and 44% respectively, twice higher than the entire population. Predictors of in-hospital mortality were an abnormal status of consciousness, older age, hyponatremia, lower systolic blood pressure and eGFR. The same conditions (except eGFR) predicted one-year mortality together with the absence of diabetes and no treatment with beta-blockers or diuretics. Conclusions In patients with AHF and severe RD, in-hospital and one-year all-cause mortality rates are very high. Independent predictors such as older age, and signs of hypoperfusion and hyponatremia may be identified but preventing and reversing RD remain the key targets for the clinical management of these patients.