Abstract Incidence, predictors and impact on prognosis of target lesion revascularization (TLR) for patients treated with second generation drug eluting stents (DESs) on unprotected left main (ULM) ...remain to be defined. The present is a multicenter study including patients treated with a second generation DES on ULM from June 2007 to January 2015. Rate of target lesion revascularization was the primary end point. All cause death, myocardial infarction, target vessel revascularization and stent thrombosis were the secondary end points. 1270 patients were enrolled: after a follow up of 650 days (230-1170) 47 (3.7%) of them underwent a re-PCI TLR on the left main, 22 during a planned angiographic follow up. Extent of CAD was similar among groups (median value of Syntax of 27±10 vs. 26±9, p 0.45), as localization of the lesion in the ULM. Of patients reporting with TLR on ULM; 56% presented with a focal re-stenosis, 33% diffuse and 10% proliferative. At multivariate analysis), insulin dependent diabetes mellitus increased risk of TLR (HR 2.0: 1.1-3.6, p 0.04), while use of IVUS resulted protective (HR 0.5: 0.3-0.9, p 0.02) At follow up, rates of cardiovascular death did not differ among the two groups (4% vs.4%, p 0.95). At multivariate analysis, TLR on LM did not increase risk of all cause death (HR 0.4: 0.1-1.6, p 0.22), while cardiogenic shock and III tertile of Syntax portended a worse prognosis (respectively HR 4.5: 2.1-10.2 p 0.01 and HR 1.4:1.1-1.6 p 0.03).. In conclusion, repeated revascularization after implantation of second generation DES on ULM represents an unfrequent event, being increased in insulin dependent patients and reduced by IVUS. Impact on prognosis remains neutral, being related to clinical presentation and extent of CAD.
Abstract Trans-radial access (TRA) is often avoided in favour of the trans-femoral access (TFA) during percutaneous coronary interventions (PCI) of the unprotected left main coronary artery (ULM), ...due to technical and safety concerns. Aim of this study was to compare the performance of TRA and TFA in the treatment of ULM with second-generation drug-eluting stents (DES-II). Consecutive patients undergoing PCI on ULM with DES-II were retrospectively enrolled in the multicenter FAILS 2 registry. Patients were stratified according to the arterial access. Choice between TRA and TFA was left to each operator’s preferences. Bleedings during index hospitalization were the primary end-point. Secondary end-points were major adverse cardiovascular events (MACE, a composite of death, reinfarction, target lesion revascularization TLR), the single components of MACE at follow-up and stent thrombosis. Propensity score matching was executed to account for possible confounding. Overall, 1247 patients were enrolled (289, 23.2%, of female sex, mean age 70.2±10.2 years). Diagnosis at presentation was stable angina in 603(48.7%) cases, NSTE-ACS in 465(37.3%), STEMI in 117(9.5%). Mean follow-up was 726±654 days. After propensity score with matching, 354 patients were included. The primary end-point was significantly reduced in patients treated with TRA (2.0% vs. 4.0%, p 0.042), while no differences emerged pertaining the secondary end-points, including TLR and reinfarction. In conclusion, TRA may reduce in-hospital bleedings in patients undergoing percutaneous treatment of the ULM, without increasing the rate of adverse cardiovascular events at follow-up, and may therefore be safely used in the treatment of the ULM.
The management of individual patients requiring anthracyclines remains challenging because uncertainty persists on predictors of cardiotoxicity. We aimed to perform a systematic review and ...meta-analysis on incidence and predictors of anthracycline chemotherapy in patients with cancer. Databases were searched for pertinent studies. Meta-analytic pooling with random-effects methods was performed for incidence estimates, while relying on descriptive statistics for prevalence and strength of association of predictors. From 16,054 retrieved citations, 18 studies reporting on 49,017 patients with cancer were included, with 22,815 treated with anthracyclines. After a median follow-up of 9 years, clinically overt cardiotoxicity occurred in 6% (95% confidence interval 3% to 9%), whereas subclinical cardiotoxicity developed in 18% (95% confidence interval 12% to 24%). Appraisal of independent risk factors of cardiotoxicity showed that cumulative anthracycline dose was most consistently reported as an accurate and robust predictor of cardiotoxicity, with an acceptable prognostic role also for chest radiotherapy, African-American ethnicity, very young or very old age, diabetes, hypertension, very high or very low body weight, or severe co-morbidities. In conclusion, despite ongoing refinements in chemotherapy regimens, anthracyclines still pose a significant risk of cardiotoxicity, especially in those requiring a high cumulative dose or chest radiotherapy.
Summary Background The relative safety of drug-eluting stents and bare-metal stents, especially with respect to stent thrombosis, continues to be debated. In view of the overall low frequency of ...stent thrombosis, large sample sizes are needed to accurately estimate treatment differences between stents. We compared the risk of thrombosis between bare-metal and drug-eluting stents. Methods For this network meta-analysis, randomised controlled trials comparing different drug-eluting stents or drug-eluting with bare-metal stents currently approved in the USA were identified through Medline, Embase, Cochrane databases, and proceedings of international meetings. Information about study design, inclusion and exclusion criteria, sample characteristics, and clinical outcomes was extracted. Findings 49 trials including 50 844 patients randomly assigned to treatment groups were analysed. 1-year definite stent thrombosis was significantly lower with cobalt-chromium everolimus eluting stents (CoCr-EES) than with bare-metal stents (odds ratio OR 0·23, 95% CI 0·13–0·41). The significant difference in stent thrombosis between CoCr-EES and bare-metal stents was evident as early as 30 days (OR 0·21, 95% CI 0·11–0·42) and was also significant between 31 days and 1 year (OR 0·27, 95% CI 0·08–0·74). CoCr-EES were also associated with significantly lower rates of 1-year definite stent thrombosis compared with paclitaxel-eluting stents (OR 0·28, 95% CI 0·16–0·48), permanent polymer-based sirolimus-eluting stents (OR 0·41, 95% CI 0·24–0·70), phosphorylcholine-based zotarolimus-eluting stents (OR 0·21, 95% CI 0·10–0·44), and Resolute zotarolimus-eluting stents (OR 0·14, 95% CI 0·03–0·47). At 2-year follow-up, CoCr-EES were still associated with significantly lower rates of definite stent thrombosis than were bare-metal (OR 0·35, 95% CI 0·17–0·69) and paclitaxel-eluting stents (OR 0·34, 95% CI 0·19–0·62). No other drug-eluting stent had lower definite thrombosis rates compared with bare-metal stents at 2-year follow-up. Interpretation In randomised studies completed to date, CoCr-EES has the lowest rate of stent thrombosis within 2 years of implantation. The finding that CoCr-EES also reduced stent thrombosis compared with bare-metal stents, if confirmed in future randomised trials, represents a paradigm shift. Funding The Cardiovascular Research Foundation.
Cardiovascular disease in patients with HIV Ballocca, Flavia, MD; D’Ascenzo, Fabrizio, MD; Gili, Sebastiano, MD ...
Trends in cardiovascular medicine,
11/2017, Letnik:
27, Številka:
8
Journal Article
Recenzirano
Abstract With the progressive increase in life expectancy of HIV-positive patient, thanks to “highly active antiretroviral therapy” (HAART), new comorbidities, and especially cardiovascular diseases ...(CVDs) are emerging as an important concern. An increased risk of coronary artery disease, often in a younger age, has been observed in this population. The underlying pathophysiology is complex and partially still unclear, with the interaction of viral infection – and systemic inflammation - antiretroviral therapy and traditional risk factors. After an accurate risk stratification, primary prevention should balance the optimal HAART to suppress the virus - avoiding side-effects - the intervention on life-style and the treatment of traditional risk factors (hypertension, dyslipidemia, diabetes). Also the management after a cardiovascular event is challenging: revascularization strategies – both percutaneous and surgical – are valuable options, keeping in mind the higher rates of recurrent events, and caution is essential to avoid drug-drug interactions. Large evidence-based data on HIV-infected patients are still lacking, and recommendations often follow those of general population. Therefore we performed a comprehensive evaluation of the literature to analyze the current knowledge on CVD's prevalence, prevention and treatment in HIV-infected patients.
Abstract Background There have been several attempts to derive syncope prediction tools to guide clinician decision-making. However, they have not been largely adopted, possibly because of their lack ...of sensitivity and specificity. We sought to externally validate the existing tools and to compare them with clinical judgment, using an individual patient data meta-analysis approach. Methods Electronic databases, bibliographies, and experts in the field were screened to find all prospective studies enrolling consecutive subjects presenting with syncope to the emergency department. Prediction tools and clinical judgment were applied to all patients in each dataset. Serious outcomes and death were considered separately during emergency department stay and at 10 and 30 days after presenting syncope. Pooled sensitivities, specificities, likelihood ratios, and diagnostic odds ratios, with 95% confidence intervals, were calculated. Results Thirteen potentially relevant papers were retrieved (11 authors). Six authors agreed to share individual patient data. In total, 3681 patients were included. Three prediction tools (Osservatorio Epidemiologico sulla Sincope del Lazio OESIL, San Francisco Syncope Rule SFSR, Evaluation of Guidelines in Syncope Study EGSYS) could be assessed by the available datasets. None of the evaluated prediction tools performed better than clinical judgment in identifying serious outcomes during emergency department stay, and at 10 and 30 days after syncope. Conclusions Despite the use of an individual patient data approach to reduce heterogeneity among studies, a large variability was still present. Current prediction tools did not show better sensitivity, specificity, or prognostic yield compared with clinical judgment in predicting short-term serious outcome after syncope. Our systematic review strengthens the evidence that current prediction tools should not be strictly used in clinical practice.
Introduction Accuracy of intracoronary imaging to discriminate functionally significant coronary stenosis according to vessel diameter remains to be defined. Methods PubMed, Scopus, and Google ...Scholar were systematically searched for studies assessing diagnostic accuracy (area under the receiver operating characteristic curve AUC, the primary end point) and sensitivity and specificity (the secondary end points) of minimal luminal area (MLA) or of minimal luminal diameter (MLD) derived from intravascular ultrasound (IVUS) or optical coherence tomography (OCT) to detect functionally significant stenosis as determined with fractional flow reserve (FFR). Results Fifteen studies were included, 2 with 110 patients analyzing only left main (LM), 5 with 224 patients and 306 lesions using OCT, and 9 with 1532 patients and 1681 lesions with IVUS. Median MLA for the OCT studies was 1.96 mm2 (1.85-1.98 mm2 ), 2.9 mm2 (2.7-3.1 mm2 ) for MLA of all lesions assessed with IVUS, 2.8 mm2 (2.7-2.9 mm2 ) for lesions with an angiographic diameter >3 mm, 2.4 mm2 (2.4-2.5 mm2 ) for lesions <3 mm, and 5.4 mm2 (5.1-5.6 mm2 ) for LM lesions. For OCT-MLA, AUC was 0.80 (0.74-0.86), with a sensitivity of 0.81 (0.74-0.87) and specificity of 0.77 (0.71-0.83), whereas OCT-MLD had an AUC of 0.85 (0.79-0.91), sensitivity of 0.74 (0.69-0.78), and specificity of 0.70 (0.68-0.73). For IVUS-MLA, AUC was 0.78 (0.75-0.81) for all lesions, 0.78 (0.73-0.84) for vessels with a diameter >3 mm, and 0.79 (0.70-0.89) for those with a diameter <3 mm. Left main AUC was 0.97 (0.93-1). Conclusion Intravascular ultrasound and OCT had modest diagnostic accuracy for identification hemodynamically significant lesions, also with specific cutoff for different diameters. Invasive imaging for assessment of LM severity demonstrated excellent correlation with FFR. What is already known about this subject? Fractional flow reserve represents the criterion standard to evaluate the prognostic value of coronary stenosis, whereas its relationship with IVUS and OCT remains to be assessed. What does this study add? Despite improvement, IVUS and OCT do not predict functional stenosis, even with dedicated cutoff, apart from LM disease. How might this impact on clinical practice? The recent guidelines of myocardial revascularization have stressed the crucial role of FFR before performing percutaneous coronary intervention on LM, whereas intravascular imaging is often exploited to drive revascularization. The present analysis stresses the point that LM percutaneous coronary intervention may be driven only by intravascular imaging, given the high accuracy for significant ischemic lesions, whereas for other vessels, these 2 techniques mirror 2 different aspects.
Midterm outcomes for patients presenting with heart failure and functional mitral regurgitation (MR) treated with Mitraclip remain unclear. Pubmed, Medline, and Google Scholar were systematically ...searched for studies enrolling patients with severe-moderate MR who underwent Mitraclip implantation. All events after at least 6 months were the primary safety end point (including death, rehospitalization for heart failure, and reinterventions), whereas change in the ejection fraction, left ventricular volumes, arterial pulmonary pressure, and left atrial diameters were considered as secondary end points. Meta-regression analysis was performed to evaluate the effect of baseline clinical and echocardiographic parameters on efficacy outcomes: 875 patients were included in 9 studies; 1.48 clips (1.3 to 1.7) for patients were implanted, and after a median follow-up of 9 months (6 to 12), 409 patients (78% 75% to 83%) were in class New York Heart Association I/II and 57 (11% 8% to 14%) still had moderate-to-severe MR. Overall adverse events occurred in 137 (26% 20% to 31%) of the patients and 78 (15% 1% to 17%) of them died; 6-minute walk test improved by 100 m (83 to 111), whereas a significant reduction in left ventricular volumes and systolic pulmonary pressure was reported. At meta-regression analysis, an increase in left ventricle systolic volumes positively affected reduction of volumes after Mitraclip, whereas atrial fibrillation reduced the positive effect of the valve implantation on ejection fraction on end-diastolic and -systolic volumes. In conclusion, Mitraclip represents an efficacious strategy for patients with heart failure and severe MR. It offers a significant improvement in functional class and in cardiac remodeling, in patients with severely dilated hearts as well, although its efficacy remains limited in the presence of atrial fibrillation.
Multiple studies have evaluated copeptin, a surrogate for arginine vasopressin, in the diagnosis of acute myocardial infarction (AMI) with mixed results. A systematic review and collaborative ...meta-analysis were performed for diagnosis of AMI and assessment of prognosis in patients presenting to the emergency department with chest pain. MEDLINE/PubMed, Cochrane CENTRAL, and EMBASE were searched for studies assessing copeptin in such patients. Study investigators were contacted, and many provided previously unpublished data. Random-effects methods were used to compare the data for copeptin, troponin, and their combination. There were a total of 9,244 patients from the 14 included studies. Mean age was 62 years; 64% were men; and 18.4% were ultimately diagnosed with AMI. Patients with AMI had a higher presentation copeptin level than those without AMI (22.8 vs 8.3 pmol/L, respectively, p <0.001). Although troponin had better diagnostic accuracy than copeptin for AMI, the combination of copeptin and troponin significantly improved the sensitivity (0.905 0.888 to 0.921 vs 0.686 0.661 to 0.710, respectively, p <0.001) and negative predictive value (0.97 0.964 to 0.975 vs 0.93 0.924 to 0.936, respectively, p <0.001) compared with troponin alone. Elevation in copeptin carried a similar risk of all-cause mortality to an elevation in troponin (odds ratio 5.84 vs 6.74, respectively, p = 0.67). In conclusion, copeptin not only identifies patients at risk of all-cause mortality, but its addition to troponin improved the sensitivity and negative likelihood ratio for diagnosis of AMI compared with troponin alone. Thus, copeptin may help identify patients who may be safely discharged early from the emergency department.
Background The effect of gender on patients with aortic stenosis undergoing transcatheter aortic valve implantation (TAVI) remains to be defined. Methods MEDLINE, Cochrane Library, and Scopus ...databases were searched for articles describing sex differences in baseline characteristics, procedures, and outcomes. All-cause death at follow-up of at least 1 year was the primary end point, and the independent effect of female gender was evaluated with pooled analysis using a random-effect model and with meta-regression. Results Six studies with 6,645 patients were included, half of them being women presenting with lower European System for Cardiac Operative Risk Evaluation (EuroSCORE) compared with men. At 30 days, more frequent major vascular complications and major and life-threatening bleeding occurred in women, with lower rates of moderate to severe aortic regurgitation, whereas 30-day mortality was similar. After a median follow-up of 365 days (range, 365 to 730 days) all-cause mortality was 24.0% in women and 34.0% in men. A pooled analysis of the multivariable approach found female gender was significantly related to a lower risk of death (odds ratio, 0.82; 95% CI, confidence interval, 0.73 to 0.93; I2 = 0%). A meta-regression analysis showed age, ejection fraction, previous cardiovascular accident, renal insufficiency, and access site did not influence these data. Conclusions Female patients undergoing TAVI present with a lower burden of comorbidities. The counterbalance between higher rates of vascular complications but lower of valve regurgitation may explain the reduced risk for women after TAVI, independently from baseline features and access site.
