Zoran Olivari

Immediate results and one-year clinical outcome after percutaneous coronary interventions in chronic total occlusions: Data from a multicenter, prospective, observational study (TOAST-GISE)

OBJECTIVES We sought to investigate the success rate and the acute and 12-month clinical outcome of percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) in the contemporary era. BACKGROUND The technique of PCI involving CTO has improved over time. However, limited data on acute and follow-up results in patients treated with PCI on CTO in recent years are available. METHODS Four hundred nineteen consecutive patients scheduled for PCI of CTO of > or =30 days of duration were enrolled in 29 centers; 390 CTOs were confirmed in 376 patients in an independent core laboratory. The end points were technical and procedural success, in-hospital and 12-month major adverse cardiac events (MACE) occurrence, and 12-month symptomatic status. RESULTS Technical and procedural success was obtained in 77.2% and 73.3% of lesions, respectively. In-hospital major adverse cardiac events occurred in 5.1% of patients. Multivariate analysis identified CTO length >15 mm or not measurable, moderate to severe calcifications, duration > or =180 days, and multivessel disease as significant predictors of PCI failure. At 12 months, patients with a successful procedure experienced a lower incidence of cardiac deaths or myocardial infarction (1.05% vs. 7.23%, p = 0.005), a reduced need for coronary artery bypass surgery (2.45% vs. 15.7%, p < 0.0001), and were more frequently free of angina (88.7% vs. 75.0%, p = 0.008) compared with patients who had an unsuccessful procedure. CONCLUSIONS Successful PCI was achieved in a high percentage of CTOs with a low incidence of complications. At one-year follow-up, patients with successful PCI of a CTO had a significantly better clinical outcome than those whose PCI was unsuccessful.

Assessment of internal mammary artery and saphenous vein graft patency and flow reserve using transthoracic Doppler echocardiography

OBJECTIVE To investigate transthoracic Doppler echocardiography in the identification of coronary artery bypass graft (CABG) flow for assessing graft patency. DESIGN The initial study group comprised 45 consecutive patients with previous CABG undergoing elective cardiac catheterisation for recurrent ischaemia. The Doppler variables best correlated with angiographic graft patency were then tested prospectively in a further 84 patients (test group). SETTING Three tertiary referral centres. INTERVENTIONS Flow velocities in grafts were recorded at rest and during hyperaemia induced by dipyridamole (0.56 mg/kg/4 min), under the guidance of transthoracic colour Doppler flow mapping. Findings on transthoracic Doppler were compared with angiography. MAIN OUTCOME MEASURES Feasibility of identifying open grafts by Doppler and diagnostic accuracy for Doppler detection of significant (⩾ 70%) graft stenosis. RESULTS In the test group the identification rate for mammary artery grafts was 100%, for saphenous vein grafts to left anterior descending coronary artery 91%, for vein grafts to right coronary artery 96%, and for vein grafts to circumflex artery 90%. Coronary flow reserve (the ratio between peak diastolic velocity under hyperaemia and at baseline) of < 1.9 (95% confidence interval 1.83 to 2.08) had 100% sensitivity, 98% specificity, 87.5% positive predictive value, and 100% negative predictive value for mammary artery graft stenosis. Coronary flow reserve of < 1.6 (95% CI 1.51 to 1.73) had 91% sensitivity, 87% specificity, 85.4% positive predictive value, and 92.3% negative predictive value for significant vein graft stenosis. CONCLUSIONS Transthoracic Doppler can provide non-invasive assessment of CABG patency.

Temporal trends in the epidemiology, management, and outcome of patients with cardiogenic shock complicating acute coronary syndromes.

Despite advances in the management of patients with acute coronary syndrome (ACS), cardiogenic shock (CS) remains the leading cause of death in these patients. We describe the evolution of clinical characteristics, in‐hospital management, and outcome of patients with CS complicating ACS.

The management of acute myocardial infarction in the cardiological intensive care units in Italy: the 'BLITZ 4 Qualità' campaign for performance measurement and quality improvement

Aim: To assess and promote compliance of Italian cardiological intensive care units (CCUs) with evidence-based guidelines for the management of acute myocardial infarction (MI). Methods and results: The process of diagnosis and treatment of MI was prospectively evaluated in 163 CCUs by use of 30 indicators during two enrolment phases, each followed by a feedback of both local and general performance. Overall, 5854 patients with ST-segment elevation MI (STEMI) and 5852 with non-ST-segment elevation MI (NSTEMI) were consecutively enrolled. The target for each indicator was defined as compliance with the relevant recommendations in ≥90% of suitable patients and it was met for nine (30%) and 10 (33.3%) indicators in the first and second phases, respectively. Regardless of target, a significant improvement in compliance was observed in the second phase in 10 out of 30 indicators (33.3%). Use of pre-hospital ECG, expedite delivery of reperfusion therapy, dosage of antithrombotic drugs, and non-pharmacological implementation of secondary prevention were often off target. Similar in-hospital mortality was observed in phases I and II, both in patients with STEMI (4.0 vs. 4.2%, p=0.79) and NSTEMI (1.8 vs. 2.4%, p=0.11). Overall, 30-day mortality were 5.7% for patients with STEMI and 3.4% with NSTEMI. Conclusions: Performance indicators can accurately weigh the whole process of diagnosis and treatment of patients with MI and monitor the improvements in the quality of care. In our large population of consecutive patients, satisfactory 30-day outcomes were observed despite suboptimal adherence to guidelines for some indicators of recognised prognostic relevance.

A decade of changes in clinical characteristics and management of elderly patients with non-ST elevation myocardial infarction admitted in Italian cardiac care units.

Objective To describe the evolution of clinical characteristics, in-hospital management and early outcome of elderly patients with non-ST elevation myocardial infarction (NSTEMI). Methods We analysed data from five consecutive Italian nationwide registries, conducted between 2001 and 2010, including patients with acute coronary syndromes admitted to cardiac care units (CCUs). Results Of 10 983 patients with NSTEMI enrolled in the 5 surveys, 4350 (39.6%) were ≥75 years old (mean age 81±5 years). Some clinical characteristics such as diabetes mellitus, hypertension, renal dysfunction and previous percutaneous coronary intervention increased significantly, whereas a history of stroke, myocardial infarction and heart failure decreased over time. An invasive approach increased from 26.6% in 2001 to 68.4% in 2010 (p<0.0001) and revascularisation rates increased from 9.9% to 51.7% (p<0.0001). Early use and prescription at discharge of β-blockers, statins and dual antiplatelet treatment increased significantly (p<0.0001). Thirty-day observed mortality decreased from 14.6% (95% CI 9.9 to 20.4) to 9.5% (95% CI 7.7 to 11.6). At the multivariate logistic regression analyses adjusted for baseline characteristics, compared with 2001, the risk of death was significantly lower in all the other studies performed at different times with reductions in adjusted mortality between 66% and 45%. Conclusions Over the past decade, substantial changes have occurred in the clinical characteristics and management of elderly patients admitted with NSTEMI in Italian CCUs, with a greater use of revascularisation therapy and recommended medications. These variations have been associated with a reduction in 30-day adjusted mortality rate.

Secondary prevention after acute myocardial infarction: Drug adherence, treatment goals, and predictors of health lifestyle habits. The BLITZ-4 Registry

Background To describe drug adherence and treatment goals, and to identify the independent predictors of smoking persistence and unsatisfactory lifestyle habits six months after an acute myocardial infarction (AMI). Methods and results 11,706 patients with AMI (30% female, mean age 68 years) were enrolled in 163 large-volume coronary care units (CCUs). At six months, drug adherence was ≥90%, while blood pressure (BP) <140/90 mmHg, low density lipoprotein (LDL) <100 mg/dl (in patients on statins), HbA1c <7% (in treated diabetics), and smoking persistence were observed in 74%, 76%, 45%, and 27% of patients, respectively. Inadequate fish intake decreased from 73% to 55%, inadequate intake of fruit and vegetables from 32% to 23%, and insufficient exercise in eligible patients from 74% to 59% (p < 0.0001). At multivariable analysis, a post-discharge cardiac visit and referral to cardiac rehabilitation at follow-up were independently associated with a lower risk of insufficient physical exercise (odds ratio (OR) 0.71 and 0.70, respectively) and persistent smoking (OR 0.68 and 0.60), whereas only referral to cardiac rehabilitation was associated with a lower risk of inadequate fish and fruit/vegetable intake (OR 0.70 and 0.65). Conclusions Six months after an AMI, despite a high adherence to drug treatments, BP, LDL, and diabetic goals are inadequately achieved. Subjects with healthy lifestyles improved after discharge, but the rate of those with regular exercise habits and adequate fish intake could be further improved. Access to post-discharge cardiac visit and referral to cardiac rehabilitation were associated with better adherence to healthy lifestyles. Knowledge of the variables associated with specific lifestyle changes may help in tailoring secondary prevention programmes.

One-year mortality in elderly adults with non-st-elevation acute coronary syndrome: Effect of diabetic status and admission hyperglycemia

To determine whether type 2 diabetes mellitus and hyperglycemia on admission should be considered independent predictors of mortality in elderly adults with acute coronary syndrome (ACS).

EURObservational Research Programme: the Chronic Ischaemic Cardiovascular Disease Registry: Pilot phase (CICD-PILOT)

AIMS Chronic ischaemic cardiovascular disease (CICD) is a major cause of mortality and morbidity worldwide. The primary objective of the CICD-Pilot registry was to describe the clinical characteristics and management modalities across Europe in a broad spectrum of patients with CICD. METHODS AND RESULTS The CICD-Pilot registry is an international prospective observational longitudinal registry, conducted in 100 centres from 10 countries selected to reflect the diversity of health systems and care attitudes across Europe. From April 2013 to December 2014, 2420 consecutive CICD patients with non-ST-elevation acute coronary syndrome (n = 755) and chronic stable coronary artery disease (n = 1464), of whom 933 (63.7%) were planned for elective coronary intervention, or with peripheral artery disease (PAD) (n = 201), were enrolled (30.5% female patients). Mean age was 66.6 ± 10.9 years. The following risk factors were reported: smoking 54.6%, diabetes mellitus 29.2%, hypertension 82.6%, and hypercholesterolaemia 74.1%. Assessment of cardiac function was made in 69.5% and an exercise stress test in 21.2% during/within 1 year preceding admission. New stress imaging modalities were applied in a minority of patients. A marked increase was observed at discharge in the rate of prescription of angiotensin-converting enzyme-inhibitors/angiotensin receptor blockers (82.8%), beta-blockers (80.2%), statins (92.7%), aspirin (90.3%), and clopidogrel (66.8%). Marked differences in clinical profile and treatment modalities were observed across the four cohorts. CONCLUSION The CICD-Pilot registry suggests that implementation of guideline-recommended therapies has improved since the previous surveys but that important heterogeneity exists in the clinical profile and treatment modalities in the different cohorts of patients enrolled with a broad spectrum of CICDs.

Coronary angioplasty in single-vessel complex lesions: Short- and long-term outcome and factors predicting acute coronary occlusion

Percutaneous transluminal coronary angioplasty (PTCA) of complex coronary lesions (plaque ulceration and/or thrombus) has an increased risk of procedural complications. To assess the influence of these angiographic features on immediate and long-term results of PTCA, we prospectively compared the success rate, incidence of procedural complications, and restenosis rate in two groups of patients selected on the basis of the presence (study group = 30 patients) or absence (control group = 200 patients) of complex morphology at the time of angioplasty. The two groups were similar with regard to extent of coronary artery disease and site of coronary stenosis. Patients in the study group had a higher incidence of periprocedural acute coronary occlusion (47% vs 6%; p less than 0.01), which in 78% of the cases was successfully treated with repeat angioplasty and intracoronary thrombolysis. Univariate correlates of this complication were Canadian Cardiovascular Society class IV (57% vs 19%; p less than 0.05) and recent (less than 30 days) onset of worsening of symptoms (71% vs 31%; p less than 0.05). The incidence of acute myocardial infarction was slightly higher in the study group (6.7% vs 2%; p = NS), and the success rate with redilatation was the same (90%). Clinical and angiographic follow-up data were obtained from all patients in whom the procedure was successful; the restenosis rate was 55% in the study group compared with 36% in the control group (p less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)

Contemporary antithrombotic strategies in patients with acute coronary syndromes managed without revascularization: insights from the EYESHOT study

AIMS Patients with acute coronary syndromes (ACSs) who are managed without coronary revascularization represent a mixed and understudied population that seems to receive suboptimal pharmacological treatment. METHODS AND RESULTS We assessed patterns of antithrombotic therapies employed during the hospitalization and in-hospital clinical events of medically managed patients with ACS enrolled in the prospective, multicentre, nationwide EYESHOT (EmploYEd antithrombotic therapies in patients with acute coronary Syndromes HOspitalized in iTalian cardiac care units) registry. Among the 2585 consecutive ACS patients enrolled in EYESHOT, 783 (30.3%) did not receive any revascularization during hospital admission. Of these, 478 (61.0%) underwent coronary angiography (CA), whereas 305 (39.0%) did not. The median GRACE and CRUSADE risk scores were significantly higher among patients who did not undergo CA compared with those who did (180 vs. 145, P < 0.0001 and 50 vs. 33, P < 0.0001, respectively). Antithrombotic therapies employed during hospitalization significantly differ between patients who received CA and those who did not with unfractioned heparin and novel P2Y12 inhibitors more frequently used in the first group, and low-molecular-weight heparins and clopidogrel in the latter group. During the index hospitalization, patients who did not receive CA presented a higher incidence of ischaemic cerebrovascular events and of mortality compared with those who underwent CA (1.6 vs. 0.2%, P = 0.04 and 7.9 vs. 2.7%, P = 0.0009, respectively). CONCLUSION Almost one-third of ACS patients are managed without revascularization during the index hospitalization. In this population, a lower use of recommended antiplatelet therapy and worse clinical outcome were observed in those who did not undergo CA when compared with those who did. CLINICAL TRIAL REGISTRATION Unique identifier: NCT02015624, http://www.clinicaltrials.gov.