Domenico Scrutinio - Academia.edu (original) (raw)

Papers by Domenico Scrutinio

The Cardiology, 1986

We verify numerically, in a rigorous way using interval arithmetic, that the Riemann hypothesis i... more We verify numerically, in a rigorous way using interval arithmetic, that the Riemann hypothesis is true up to height 3 • 10 12. That is, all zeroes β + iγ of the Riemann zeta-function with 0 < γ ≤ 3 • 10 12 have β = 1/2.

European journal of internal medicine, May 1, 2018

Still there is conflicting evidence about gender-related differences in prognosis among patients ... more Still there is conflicting evidence about gender-related differences in prognosis among patients with heart failure. This prognostic uncertainty may have implications for risk stratification and planning management strategy. The aim of the present study was to explore the association between gender and one-year mortality in patients admitted with acute decompensated heart failure (ADHF). We studied 1513 patients. The Cumulative Incidence Function (CIF) method was used to estimate the absolute rate of mortality, heart transplantation (HT)/ventricular assist device (VAD) implantation, and survival free of HT/VAD implantation at 1year. An interaction analysis was performed to assess the association between covariates, gender, and mortality risk. Propensity score matching and Cox regression were used to compare mortality rates in the gender subgroups. The CIF estimates of 1-year mortality, HT/VAD implantation, and survival free of HT/VAD implantation at 1year were 33.1%, 7.0%, and 59.9%...

Monaldi archives for chest disease = Archivio Monaldi per le malattie del torace / Fondazione clinica del lavoro, IRCCS [and] Istituto di clinica tisiologica e malattie apparato respiratorio, Università di Napoli, Secondo ateneo, 2005

A sedentary lifestyle is one of the five major risk factors for coronary heart disease (CHD) alon... more A sedentary lifestyle is one of the five major risk factors for coronary heart disease (CHD) along with hypertension, abnormal values of blood lipids, smoking and obesity. After an acute myocardial infarction, risk factors continue to contribute synergically to the clinical progression and prognosis of CHD. Regular physical exercise has been shown to improve exercise capacity and quality of life, to reduce symptoms and to decrease the risk of new coronary events in patients with CHD. Regular physical activity with its favourable effects on coronary risk factors, endothelial dysfunction, inflammation, tendency to thrombosis, on autonomic tone and myocardial ischemia, may play a role in reducing the risk of new coronary events and death. In view of the clinical benefits yielded and its well-documented cardioprotective mechanisms, regular physical activity should be regarded, by general practitioners and cardiologists, as a true and effective form of therapy for patients with CHD.

Circulation Journal, 2014

Background: Renal dysfunction may confound the clinical interpretation of N-terminal pro-B-type n... more Background: Renal dysfunction may confound the clinical interpretation of N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentration. This study investigated whether renal dysfunction influences the prognostic accuracy of NT-proBNP in acute decompensated heart failure (ADHF). Methods and Results: We studied 908 ADHF patients. The primary outcome was 12-month mortality. Interaction between estimated glomerular filtration rate (eGFR) and NT-proBNP in predicting mortality was tested with the likelihood ratio test. The patients were classified into 3 eGFR strata: ≥60, 30-59, and <30 ml • min-1 • 1.73 m-2. Cox models were used to calculate the adjusted hazard ratios (HR) for NT-proBNP, modeled as a dichotomous or categorized variable, within each level of eGFR. NT-proBNP was categorized using optimal cutoffs defined in ROC analysis for each eGFR level. A total of 234 patients (25.8%) died. Testing for interaction was not significant (χ2 =0.29; P=0.5928). The adjusted HR for NT-proBNP >5,180 pg/ml was 2.09 (P<0.001) in the highest, 1.7 (P<0.001) in the intermediate, and 3.33 (P=0.010) in the lowest eGFR level. The adjusted HR for NT-proBNP above the optimal cutoffs defined on ROC analysis were 1.5 (P=0.239), 2.2 (P<0.001), and 3.24 (P=0.002), respectively. The models incorporating NT-proBNP as a dichotomous or categorized variable had equivalent C-statistics. Conclusions: There was no evidence of interaction between eGFR and NT-proBNP in predicting mortality. The NT-proBNP cutoff of 5,180 ng/L provided independent prognostic information, irrespective of the level of residual renal function.

Circulation Journal, 2015

on behalf of the Metabolic Exercise test data combined with Cardiac and Kidney Indexes (MECKI) Sc... more on behalf of the Metabolic Exercise test data combined with Cardiac and Kidney Indexes (MECKI) Score Research Group Background: Chronic kidney disease is associated with sympathetic activation and muscle abnormalities, which may contribute to decreased exercise capacity. We investigated the correlation of renal function with peak exercise oxygen consumption (V O2) in heart failure (HF) patients. Methods and Results: We recruited 2,938 systolic HF patients who underwent clinical, laboratory, echocardiographic and cardiopulmonary exercise testing. The patients were stratified according to estimated glomerular filtration rate (eGFR). Mean follow-up was 3.7 years. The primary outcome was a composite of cardiovascular death and urgent heart transplantation at 3 years. On multivariable regression, eGFR was predictor of peakV O2 (P<0.0001). Other predictors were age, sex, body mass index, HF etiology, NYHA class, atrial fibrillation, resting heart rate, Btype natriuretic peptide, hemoglobin, and treatment. After adjusting for significant covariates, the hazard ratio for primary outcome associated with peakV O2 <12 ml • kg −1 • min −1 was 1.75 (95% confidence interval (CI): 1.06-2.91; P=0.0292) in patients with eGFR ≥60, 1.77 (0.87-3.61; P=0.1141) in those with eGFR of 45-59, and 2.72 (1.01-7.37; P=0.0489) in those with eGFR <45 ml • min −1 • 1.73 m −2. The area under the receiver-operating characteristic curve for peakV O2 <12 ml • kg −1 • min −1 was 0.63 (95% CI: 0.54-0.71), 0.67 (0.56-0.78), and 0.57 (0.47-0.69), respectively. Testing for interaction was not significant. Conclusions: Renal dysfunction is correlated with peakV O2. A peakV O2 cutoff of 12 ml • kg-1 • min-1 offers limited prognostic information in HF patients with more severely impaired renal function.

Journal of the American College of Cardiology, 1995

European Heart Journal, 2000

Aims To evaluate myocardial contractile reserve using low-dose dobutamine echocardiography in pat... more Aims To evaluate myocardial contractile reserve using low-dose dobutamine echocardiography in patients with chronic heart failure secondary to idiopathic dilated cardiomyopathy stratified by peak exercise oxygen consumption (VO 2). Conclusion This study indicates that in patients with chronic heart failure secondary to idiopathic cardiomyopathy, the cardiac response to low-dose dobutamine, as assessed by echocardiography, is correlated with peak VO 2 , an objective and accurate measure of the severity of the disease and clinical outcome.

Anadolu Kardiyoloji Dergisi/The Anatolian Journal of Cardiology, 2010

Long-term survivors of asymptomatic children treated with anthracycline may have cardiac toxicity... more Long-term survivors of asymptomatic children treated with anthracycline may have cardiac toxicity without clinical findings. The subclinical cardiac toxicity could be evaluated by dobutamine stress echocardiography (DSE) with exploring effective and safe doses of dobutamine. Twenty asymptomatic survivors (mean age: 19.2+/-4.0 years) treated with cumulative dose of 282.1+/-125.9 mg/m2 of anthracycline were compared with 18 age-matched healthy volunteers. Total time completed this treatment was 10.2+/-2.2 years. This was a cross-sectional case-controlled study and patient and control groups were evaluated at the time of routine appointments. Echocardiographic studies were performed before and after each dobutamine infusion of 5, 10, 15, 20 microg/kg/min. Mann-Whitney U test was used to evaluate the difference between the groups. ANOVA for repeated measurements test was used to compare each measurement of control and patients groups and Bonferroni posthoc test was used for correction. Hemodynamic changes are observed at the dobutamine doses of 15 microg/kg/min in the patient group. Before dobutamine infusion in the patient group only isovolumic relaxation and contraction times values were prolonged comparing to the control group. After the infusion of dobutamine ejection fraction, shortening fraction, left ventricular posterior wall thickening (%LVPWt), end-systolic wall stress (ESS), interventricular septum systolic thickening, left ventricular end-systolic and end-diastolic diameters, mitral acceleration (AT) and deceleration times values were deteriorated in the patient group compared to the control group (p=0.05 for all). The highest differences between the groups were observed in the %LVPWt, ESS and AT values at the end of test. The DSE is an effective and safe method to demonstrate the late anthracycline cardiotoxicity. Echocardiographic evaluation should be made at rest and dobutamine dose of 20 microg/kg/min. In the early diagnosis of late cardiac toxicity; assessment of %LVPWt, AT and ESS values in addition to standard echocardiographic examination could be the guidance for early diagnosis of late cardiac toxicity.

$Research paper thumbnail of Recombinant tissue-type plasminogen activator followed by heparin compared with heparin alone for refractory unstable angina pectoris$

The American Journal of Cardiology, 1990

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Giornale italiano di medicina del lavoro ed ergonomia, 2019

SUMMARY In the last two decades, population aging has led to a substantial increase in the number... more SUMMARY In the last two decades, population aging has led to a substantial increase in the number of people living with moderate-to-severe disability and, consequently, an increased demand for rehabilitation care. It is estimated that, currently, 2.8 million people live with severe disability in Italy. Although greater access to rehabilitation care is required to meet the needs of disabled patients, the capacity to provide rehabilitation has not changed over the last years and fails to meet current rehabilitation needs. Efforts should be devoted for aligning the capacity to provide rehabilitation care to the increased demand for rehabilitation care.

Journal of Clinical Epidemiology

$Research paper thumbnail of Exercise oscillatory ventilation and prognosis in heart failure patients with reduced and mid‐range ejection fraction$

European Journal of Heart Failure

Exercise oscillatory ventilation (EOV) is a pivotal cardiopulmonary exercise test parameter for t... more Exercise oscillatory ventilation (EOV) is a pivotal cardiopulmonary exercise test parameter for the prognostic evaluation of patients with chronic heart failure (HF). It has been described in patients with HF with reduced ejection fraction (<40%, HFrEF) and with HF with preserved ejection fraction (>50%, HFpEF), but no data are available for patients with HF with mid‐range ejection fraction (40–49%, HFmrEF). The aim of the study was to evaluate the prognostic role of EOV in HFmrEF patients.

European Journal of Internal Medicine, 2016

Background: To assess the impact of comorbidities on long-term all-cause mortality in patients ho... more Background: To assess the impact of comorbidities on long-term all-cause mortality in patients hospitalized with exacerbated signs/symptoms of previously chronic stable HF (AE-CHF). Methods: 1119 patients admitted for AE-CHF and with NT-proBNP levels N900 pg/mL were enrolled. Univariable and multivariable Cox analyses were performed to assess the association of age, gender, hypertension, diabetes, obesity, atrial fibrillation, coronary heart disease (CHD), chronic obstructive pulmonary disease, previous cerebrovascular accidents, chronic liver disease (CLD), thyroid disease, renal impairment (RI), and anemia with 3-year all-cause mortality. Results: During the follow-up, 441 patients died and 126 underwent heart transplantation (HT) or ventricular assist device (VAD) implantation. 45.8% of the fatal events and 52.4% of HT/VAD implantations occurred within 180 days after admission. Increasing age (p = .012), obesity (p = .037), atrial fibrillation (p = .030), CHD (p = .015), CLD (p = .001), RI (p b .001), and anemia (p b .001) were independently associated with 3-year all-cause mortality. Most of the prognostic impact of CHD, took place within the first 180 days after admission. Male gender was associated with mortality beyond 180 days. Compared with normal weight, obesity was associated with better overall survival. Obese patients, however, had significantly lower NT-proBNP concentrations and less frequently presented with hypotension, hyponatremia, and severe left ventricular systolic dysfunction, despite a similar prevalence of severe dyspnea at admission. Conclusions: Several comorbidities are associated with long-term risk of death in hospitalized patients with worsening HF, although the nature of this association does appear to be complex. Our data may help to raise awareness about the clinical relevance of comorbid conditions.

Stroke, 2015

Background and Purpose— Prediction of functional outcome after stroke rehabilitation (SR) is a gr... more Background and Purpose— Prediction of functional outcome after stroke rehabilitation (SR) is a growing field of interest. The association between SR and survival still remains elusive. We sought to investigate the factors associated with functional outcome after SR and whether the magnitude of functional improvement achieved with rehabilitation is associated with long-term mortality risk. Methods— The study population consisted of 722 patients admitted for SR within 90 days of stroke onset, with an admission functional independence measure (FIM) score of <80 points. We used univariable and multivariable linear regression analyses to assess the association between baseline variables and FIM gain and univariable and multivariable Cox analyses to assess the association of FIM gain with long-term mortality. Results— Age ( P <0.001), marital status ( P =0.003), time from stroke onset to rehabilitation admission ( P <0.001), National Institutes of Health Stroke Scale score at reh...

Journal of the American Society of Echocardiography, 2013

Assessing right ventricular (RV) performance is essential for patients with tetralogy of Fallot (... more Assessing right ventricular (RV) performance is essential for patients with tetralogy of Fallot (TOF). The aim of this study was to investigate the reliability and validity of tricuspid annular plane systolic excursion (TAPSE) against cardiac magnetic resonance imaging measures and cardiopulmonary exercise testing. A retrospective study was performed in 125 outpatients with repaired TOF with available protocol-driven echocardiography, cardiac magnetic resonance imaging, and exercise stress testing obtained as part of a cross-sectional study. TAPSE was measured on the two-dimensional apical four-chamber view on echocardiography by two readers. Multivariate linear regression was used to examine the association between TAPSE and measures of RV function and exercise capacity. The mean age was 12.6 ± 3.3 years, 41 patients (33%) were female, and 104 (83%) were white. TAPSE averaged 1.6 ± 0.37 cm, with an interreader intraclass correlation coefficient of 0.78 (n = 18). TAPSE was significantly associated with cardiac magnetic resonance-based RV stroke volume after adjustment for gender and body surface area (β = 13.8; 95% confidence interval, 2.25-25.30; P = .02). TAPSE was not associated with cardiac magnetic resonance-based RV ejection fraction (P = .77). On exercise testing, TAPSE was not associated with peak oxygen consumption, percentage of predicted oxygen consumption, oxygen pulse, or the ventilatory equivalent for carbon dioxide in patients with maximal exercise stress testing (n = 73 [58%]). TAPSE is reproducibly measured by echocardiography in patients with TOF. It is not associated with RV ejection fraction or exercise performance, and its association with RV stroke volume may be confounded by body size. On the basis of these results, TAPSE is not representative of global RV performance in patients with TOF.

Scientific Reports

Stroke is among the leading causes of death and disability worldwide. Approximately 20–25% of str... more Stroke is among the leading causes of death and disability worldwide. Approximately 20–25% of stroke survivors present severe disability, which is associated with increased mortality risk. Prognostication is inherent in the process of clinical decision-making. Machine learning (ML) methods have gained increasing popularity in the setting of biomedical research. The aim of this study was twofold: assessing the performance of ML tree-based algorithms for predicting three-year mortality model in 1207 stroke patients with severe disability who completed rehabilitation and comparing the performance of ML algorithms to that of a standard logistic regression. The logistic regression model achieved an area under the Receiver Operating Characteristics curve (AUC) of 0.745 and was well calibrated. At the optimal risk threshold, the model had an accuracy of 75.7%, a positive predictive value (PPV) of 33.9%, and a negative predictive value (NPV) of 91.0%. The ML algorithm outperformed the logis...