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1.
J Intern Med ; 277(3): 318-330, 2015 Mar.
Article in English | MEDLINE | ID: mdl-24620922

ABSTRACT

OBJECTIVES: Fibroblast growth factor-23 (FGF-23) and vitamin D are hormones involved in phosphate homoeostasis. They also directly influence cardiomyocyte hypertrophy. We examined whether the relationships between levels of vitamin D or FGF-23, cardiac phenotype and outcome were independent of established cardiac biomarkers in a large cohort of community-dwelling elderly subjects. DESIGN AND SETTING: Plasma levels of FGF-23 and vitamin D were measured in 1851 men and women (65-84 years) resident in the Lazio region of Italy. Participants were referred to eight cardiology centres for clinical examination, electrocardiography, comprehensive Doppler echocardiography and blood sampling. All-cause mortality or hospitalizations were available after a median follow-up of 47 months with record linkage of administrative data. RESULTS: Vitamin D deficiency (<20 ng mL(-1) ) was found in 72.3% of subjects, but FGF-23 levels were normal [74 (58-97) RU per mL]. After adjustment for cardiovascular risk factors and morbidities, low concentrations of vitamin D and high levels of FGF-23 were associated with a higher left ventricular (LV) mass index. Levels of FGF-23 [hazard ratio (HR) (95% confidence interval (CI)) 1.71 (1.28-2.28), P < 0.0001] but not vitamin D [0.76 (0.57-1.01), P = 0.08] were independently associated with mortality after adjustment for clinical risk factors and two cardiac markers together (N-terminal pro-brain natriuretic peptide and high-sensitivity cardiac troponin T), but did not predict hospital admission. People with above median values of FGF-23 and below median values of vitamin D had greater LV hypertrophy and higher mortality. CONCLUSIONS: In community-dwelling elderly individuals with highly prevalent vitamin D deficiency, FGF-23 levels were associated with LV hypertrophy and predicted mortality independently of two robust cardiac biomarkers. A causal relationship was not demonstrated, but the hormones involved in mineral metabolism emerged as nontraditional risk factors and may affect cardiovascular risk.


Subject(s)
Fibroblast Growth Factors/metabolism , Hypertrophy, Left Ventricular/etiology , Vitamin D/metabolism , Aged , Aged, 80 and over , Biomarkers/metabolism , Cross-Sectional Studies , Female , Fibroblast Growth Factor-23 , Humans , Hypertrophy, Left Ventricular/blood , Male , Phenotype , Prognosis , Risk Factors , Vitamin D Deficiency/complications
2.
Int J Cardiovasc Imaging ; 29(3): 533-4, 2013 Mar.
Article in English | MEDLINE | ID: mdl-23001158

ABSTRACT

We report the case of a 70 years old man admitted to our coronary care unit because of atrial fibrillation, non-ST-elevation myocardial infarction and cardiogenic shock. Emergency coronary angiography showed a 99 % stenosis of the circumflex coronary that was successfully treated with a bare metal stent. Atrial fibrillation was cardioverted to sinus rhythm. Nevertheless, no hemodynamic benefit was observed. Transesophageal echocardiography (TEE) showed rupture of the papillary muscle (PM). The patient underwent emergent mitral valve replacement. Surgical visualization of the mitral valve confirmed the rupture of the antero-lateral PM. The postoperative course was uneventful and the patient recovered fully. This case highlights that even small myocardial infarction may have dramatic clinical presentations such as PM rupture with cardiogenic shock. Clinical suspicion and rapid confirmation of the diagnosis by TEE are essential requirements for successful treatment.


Subject(s)
Echocardiography, Doppler, Color , Echocardiography, Transesophageal , Heart Rupture, Post-Infarction/diagnostic imaging , Mitral Valve Insufficiency/diagnostic imaging , Mitral Valve/diagnostic imaging , Papillary Muscles/diagnostic imaging , Aged , Heart Rupture, Post-Infarction/etiology , Heart Rupture, Post-Infarction/surgery , Heart Valve Prosthesis Implantation , Humans , Male , Mitral Valve/surgery , Mitral Valve Insufficiency/etiology , Mitral Valve Insufficiency/surgery , Papillary Muscles/surgery , Predictive Value of Tests , Rupture, Spontaneous , Shock, Cardiogenic/etiology , Treatment Outcome
3.
J Intern Med ; 273(3): 306-17, 2013 Mar.
Article in English | MEDLINE | ID: mdl-23216903

ABSTRACT

OBJECTIVE: To investigate the association between circulating cardiac biomarkers and minor abnormalities in cardiac phenotype [left ventricular (LV) mass and midwall fractional shortening (MFS)] in elderly individuals in a general population sample. DESIGN AND SETTING: We examined the relationship between plasma concentrations of high-sensitivity cardiac troponin T (hs-cTnT) or N-terminal probrain natriuretic peptide (NT-proBNP) and elevated LV mass (LV mass/body surface area >95 g m(-2) for women and 115 g m(-2) for men), reduced MFS (<15%) or isolated LV diastolic dysfunction in 1973 elderly subjects (mean age 73 ± 5 years, range 65-84) resident in the Lazio region of Italy and enrolled in the PREDICTOR study. RESULTS: Overall, 24.8% of subjects had elevated LV mass, and 30.4% had reduced MFS. Median [quartile 1-3] plasma concentrations of hs-cTnT and NT-proBNP were higher in individuals with elevated than those with normal LV mass: 6.6 [3.5-11.6] and 147 [64-296] ng L(-1) vs. 4.6 [3.0-8.1] and 79 [41-151] ng L(-1) respectively (P < 0.001). There was a graded increase in median hs-cTnT concentrations across clinical categories of LV hypertrophy: 4.6 [3.0-8.1], 5.8 [3.1-10.2], 7.6 [3.8-13.7] and 8.4 [3.8-17.6] ng L(-1) for subjects with normal LV mass and mild, moderate or severe LV hypertrophy respectively (P < 0.0001); hs-cTnT also increased with increasing quartiles of MFS or grades of isolated LV diastolic dysfunction. CONCLUSIONS: Within an extremely low range of concentrations, increased hs-cTnT amongst community-dwelling elderly subjects is associated with subtle alterations in cardiac phenotype, suggesting that minor injury to cardiac myocytes and subsequent release of troponin reflect subclinical pathophysiological LV deterioration in this population.


Subject(s)
Troponin T/blood , Ventricular Dysfunction, Left/diagnosis , Ventricular Dysfunction, Left/physiopathology , Aged , Aged, 80 and over , Biomarkers/blood , C-Reactive Protein/analysis , Cross-Sectional Studies , Cystatin C/blood , Echocardiography, Doppler, Color , Female , Humans , Male , Myocytes, Cardiac/pathology , Natriuretic Peptide, Brain/blood , Peptide Fragments/blood , Phenotype , Troponin T/metabolism
4.
Nutr Metab Cardiovasc Dis ; 21(10): 783-91, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21939839

ABSTRACT

BACKGROUND AND AIM: We analyzed the effect of the mineralocorticoid receptor antagonist canrenone on LV mechanics in patients with or without metabolic syndrome (MetS) and compensated (Class II NYHA) heart failure (HF) with reduced ejection fraction (EF≤45%) on optimal therapy (including ACE-i or ARB, and ß-blockers). METHODS AND RESULTS: From a randomized, double-blind placebo-controlled trial (AREA-in-CHF), patients with (73 on canrenone [Can] and 77 on placebo [Pla]), based on modified ATPIII definition (BMI≥30kg/m(2) instead of waist girth) or without MetS (146 by arm). In addition to traditional echocardiographic parameters, we also evaluated myocardial mechano-energetic efficiency (MME) based on a previously reported method. At baseline, Can and Pla did not differ in age, BMI, blood pressure (BP), metabolic profile, BNP, and PIIINP. Compared with MetS-Pla, and controlling for age, sex and diabetes, at the final control MetS-Can exhibited increased MME, preserved E/A ratio, and decreased atrial dimensions (0.04

Subject(s)
Canrenone/therapeutic use , Heart Failure, Systolic/drug therapy , Heart Ventricles/physiopathology , Metabolic Syndrome/complications , Mineralocorticoid Receptor Antagonists/therapeutic use , Aged , Double-Blind Method , Female , Heart Failure, Systolic/complications , Heart Failure, Systolic/physiopathology , Humans , Male , Middle Aged , Natriuretic Peptide, Brain/blood , Peptide Fragments/blood , Placebos , Procollagen/blood
5.
Heart ; 95(15): 1273-7, 2009 Aug.
Article in English | MEDLINE | ID: mdl-19443475

ABSTRACT

BACKGROUND: In patients with ischaemic cardiomyopathy and viable myocardium, left ventricular ejection fraction (LVEF) does not always improve after revascularisation. Whether this may affect prognosis is unclear. OBJECTIVE: To evaluate the prognosis of viable patients with and without improvement of LVEF after coronary revascularisation. METHODS: Before revascularisation, radionuclide ventriculography (RNV) and dobutamine stress echocardiography were performed to assess LVEF and myocardial viability, respectively. Nine to 12 months after revascularisation, LVEF improvement was assessed by RNV. Patients were divided into three groups: group 1, viable patients with LVEF improvement (n = 27); group 2, viable patients without LVEF improvement (n = 15), group 3, non-viable patients (n = 48). Cardiac events were evaluated during a 4-year follow-up. RESULTS: After revascularisation, the mean (SD) LVEF improved from 32 (9)% to 42 (10)% in group 1, but did not change significantly in group 2 and in group 3, p<0.001 by analysis of variance (ANOVA). Heart failure symptoms improved in both groups 1 (mean (SD) NYHA class from 3.1 (0.9) to 1.7 (0.7)) and 2 (from 3.2 (0.7) to 1.7 (0.9)), but not in group 3 (from 2.8 (1.0) to 2.7 (0.5)), p<0.001 by ANOVA. During follow-up, the cardiac event rate was low (4%) in group 1, intermediate (21%) in group 2 and high (33%) in group 3 (p = 0.01). CONCLUSION: The best prognosis after revascularisation may be expected in those viable patients whose LVEF improves. Conversely, viable patients without functional improvement have an intermediate prognosis.


Subject(s)
Myocardial Ischemia/surgery , Myocardial Revascularization , Stroke Volume/physiology , Analysis of Variance , Angina Pectoris/physiopathology , Angina Pectoris/surgery , Echocardiography , Female , Heart Failure/etiology , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Myocardial Infarction/physiopathology , Myocardial Infarction/surgery , Myocardial Ischemia/physiopathology , Treatment Outcome , Ventricular Function, Left/physiology
6.
G Ital Nefrol ; 23 Suppl 34: S57-63, 2006.
Article in Italian | MEDLINE | ID: mdl-16633997

ABSTRACT

Cardiac remodeling is a physiologic or pathologic condition that occurs after myocardial infarction, pressure overload, myocardial inflammatory diseases, idiopathic dilated cardiomyopathy or volume overload. In spite of different etiologies, molecular, biochemical and mechanical processes are the same. The change in left ventricular function brings about a complex neuro-hormonal disorder, and disease progression is due to the combined action of several biological factors with toxic effects on the heart and vessels. The renin-angiotensin-aldosterone system (RAAS) is very important in this process, through the effects on hydro-saline balance or through direct processes on myocardium. A direct effect of aldosterone in myocardial fibrosis after the detection of heart tissue aldosterone production has been demonstrated. In the past, the attention of physicians and researchers was focused on angiotensin II inhibition; and therefore, on angiotensin-converting enzyme (ACE) inhibitors, considering them sufficient to antagonize the effects of aldosterone. Nevertheless, this theory has been confuted in recent studies, with the evidence of elevated plasmatic aldosterone levels in patients treated with ACE-inhibitors and angiotensin receptor blockers. This phenomenon probably is due to the activation of secondary ACTH mediated pathways of trial aldosterone production. It has been demonstrated that aldosterone receptor inhibition is effective in reducing cardiac remodeling and mortality. AREA-IN CHF is the first multicentric, double blind, randomized, placebo control study to compare canrenone, an aldosterone receptor blocker, with placebo. The primary end point is the echocardiographic evaluation of left ventricular remodeling. Secondary end points are left ventricular end-systolic volume, ejection fraction, diastolic filling patterns, NYHA functional class, and mortality and hospitalizations of cardiac origin. In addition, bio-humoral effects of aldosterone receptor blocker therapy will be investigated. The study results will be available at the end of 2006.


Subject(s)
Heart Failure/drug therapy , Heart Failure/physiopathology , Mineralocorticoid Receptor Antagonists , Ventricular Remodeling/drug effects , Humans
7.
Eur Heart J ; 24(4): 329-36, 2003 Feb.
Article in English | MEDLINE | ID: mdl-12581680

ABSTRACT

AIMS: The transversal distribution of coronary atherosclerotic plaques (AP) (myocardial vs pericardial) affects vessel remodelling. The aim of this study was to define the impact of transversal lesion distribution on vessel remodelling in proximal and distal coronary segments using a 3D intravascular ultrasound (IVUS) reconstruction. METHODS: The study group included 70 lesions located in the left anterior descending artery within 5mm of the septal take-off, and imaged using 3D-IVUS. The take-off of the septal branch was used to divide the plaque into a myocardial and pericardial surface. The IVUS index of vessel remodelling was calculated as: [narrowest external elastic membrane (EEM) site cross-sectional area (CSA)-reference EEM CSA)/reference EEM CSAx100]. The lesions with an intermediate vessel remodelling index (between -25% and +15%) were excluded from analysis. RESULTS: Of the 38 APs with a pericardial distribution, 34 (89%) showed positive remodelling (P<0.001). The distal lesions had a positive vessel remodelling index regardless of transversal plaque distribution. At multivariate analysis, pericardial distribution and the distal location of AP were the only independent variables predictive of positive remodelling. CONCLUSIONS: The transversal distribution of atherosclerotic plaque affects vessel remodelling in left anterior descending coronary lesions, probably because of an extravascular splinting effect. Distal lesions usually show positive remodelling regardless of transversal plaque distribution.


Subject(s)
Adipose Tissue/physiology , Coronary Artery Disease/pathology , Coronary Vessels/pathology , Aged , Arteries , Coronary Artery Disease/diagnostic imaging , Coronary Vessels/diagnostic imaging , Echocardiography, Three-Dimensional/methods , Endosonography , Female , Humans , Image Processing, Computer-Assisted , Male , Middle Aged , Pericardium
8.
Heart ; 88(5): e6, 2002 Nov.
Article in English | MEDLINE | ID: mdl-12381657

ABSTRACT

Four cases of young patients with acute myocardial infarction are discussed in which urgent angiography showed large intracoronary thrombus and TIMI (thrombolysis in myocardial infarction) flow > or = 2 in the infarct related artery. The rest of the coronary tree appeared to be free of detectable atherosclerosis. Percutaneous transluminal coronary angioplasty was not performed and an aggressive antiplatelet/anticoagulant treatment was administered (acetylsalicylic acid, clopidogrel, abciximab, and heparin). In all cases early angiographic control (1-12 days after AMI) showed disappearance of thrombus, no significant residual stenosis, and normal flow. No deterioration of left ventricular function was observed and the clinical course both in hospital and at five months' follow up was uneventful.


Subject(s)
Anticoagulants/therapeutic use , Coronary Thrombosis/drug therapy , Myocardial Infarction/etiology , Platelet Aggregation Inhibitors/therapeutic use , Ticlopidine/analogs & derivatives , Abciximab , Adult , Antibodies, Monoclonal/therapeutic use , Aspirin/therapeutic use , Clopidogrel , Coronary Circulation/physiology , Coronary Thrombosis/complications , Coronary Thrombosis/physiopathology , Drug Therapy, Combination , Female , Heparin/therapeutic use , Humans , Immunoglobulin Fab Fragments/therapeutic use , Male , Middle Aged , Myocardial Infarction/physiopathology , Ticlopidine/therapeutic use
9.
Heart ; 85(5): 567-70, 2001 May.
Article in English | MEDLINE | ID: mdl-11303012

ABSTRACT

OBJECTIVE: To test the efficacy of high frequency intravascular ultrasound (IVUS) transducers in identifying lipid/necrotic pools in atherosclerotic plaques. METHODS: 40 MHz transducers were used for in vitro IVUS assessment of 12 arterial segments (10 coronary and two carotid arteries, dissected from five different necropsy cases). IVUS acquisition was performed at 0.5 mm/s after ligature of the branching points to generate a closed system. Lipid/necrotic areas were defined by IVUS as large echolucent intraplaque areas surrounded by tissue with higher echodensity. To obtain histopathological sections corresponding to IVUS cross sections, vessels were divided into consecutive 3 mm long segments using the most distal recorded IVUS image as the starting reference. Samples were then fixed with 10% buffered formalin, processed for histopathological study, serially cut, and stained using the Movat pentacrome method. RESULTS: 122 sections were analysed. Lipid pools were observed by histology in 30 sections (25%). IVUS revealed the presence of lipid pools in 19 of these sections (16%; sensitivity 65%, specificity 95%). CONCLUSIONS: In vitro assessment of lipid/necrotic pools with high frequency transducers was achieved with good accuracy. This opens new perspectives for future IVUS characterisation of atherosclerotic plaques.


Subject(s)
Coronary Artery Disease/diagnostic imaging , Ultrasonography, Interventional/methods , Aged , Coronary Artery Disease/metabolism , Coronary Artery Disease/pathology , Humans , Lipids/analysis , Male , Middle Aged , Necrosis , Observer Variation , Reproducibility of Results , Sensitivity and Specificity , Transducers , Ultrasonography, Interventional/instrumentation
10.
Ital Heart J Suppl ; 1(1): 65-73, 2000 Jan.
Article in Italian | MEDLINE | ID: mdl-10832121

ABSTRACT

In most Italian hospitals, sanitary reform is being applied, while at the same time a new organization of the National Health System is being planned. The director of the medical hospital (head doctor) is becoming more and more involved in management and this aspect has modified his professional attributes. Cardiology is a branch of medicine that, through its scientific preparatory work consisting in debates, management courses, ethics, and production of managerial software, is closer to applying the reform without risking improper administrative aspects. This, obviously, comes about after thoroughly reviewing past work methods and the need to have an administrative organization, which allocates efficient use of manpower and materials, helping to eliminate any sources of inefficiency. The logical procedure foresees an actual analysis in terms of sanitary needs and availability of resources, and so attempting to better balance and harmonize both aspects of the problem. Certainly, the acquisition of theoretical norms and practices, which today are present because of the upsurge in training courses for doctors, is not enough to guarantee the achievement of optimal results. Furthermore, we find that theoretical models need to be validated and adapted to real work situations in the public hospital sector. This paper proposes, therefore, to explain the managerial experiences achieved in actual work situations at the Cardiology Department Unit of the San Giovanni Addolorata Hospital in Rome. In particular, it shows that in order to reach its clinical and economical objectives, it is essential to make available correct informative support for strategic and operational decisions. We can observe that there is a continuing lack of computer support systems being integrated into the present organization of most cardiology units. The use of software distributed to cardiology units from the Associazione Nazionale Medici Cardiologi Ospedalieri (ANMCO) has enabled us to partially remedy the above-mentioned inadequacy and, at the same time, has pointed out the limits of automated support with regards managerial needs which are rapidly changing and becoming increasingly more complex. The experience described shows the possibility of uniting an efficient organization, from a clinical point of view, with an adequate managerial automation without including any flaws from the previous organizational systems. Based on achieved results and the difficulties encountered, further development in computer technology support to hospital management is suggested. This paper, in particular, stresses the need to improve automated informative support available to doctors in managerial positions. This improvement would allow us to immediately evaluate "internal" administrative matters, have the data available for budget planning and analysis of budget variations, and be better able to integrate this with clinical data. The scientific community can give further assistance by promoting the genesis of data for a sensible bench-marking within medical organizations which is the only means sufficient to give reliable and clinically appropriate indications on the possibility of increasing its own structural efficiency.


Subject(s)
Cardiology Service, Hospital/organization & administration , Cardiology , Humans , Information Management/organization & administration , Italy , Management Information Systems , Rome , Societies, Medical , Task Performance and Analysis
11.
Z Kardiol ; 89 Suppl 2: 117-23, 2000.
Article in English | MEDLINE | ID: mdl-10769414

ABSTRACT

UNLABELLED: Previous studies correlating histomorphology with 20-30 MHz-derived intravascular ultrasound (IVUS) images showed that IVUS provides to some extent qualitative information on plaque composition. IVUS imaging proved to define calcifications with high sensitivity and specificity but was found to be less accurate in the assessment of soft components. Nevertheless previous studies on atherosclerotic plaque characterization were limited by use of low-frequency transducers that did not define accurately soft components. Our goal was to test the effectiveness of high frequency IVUS transducers in the identification of lipid/necrotic pools in atherosclerotic plaques. METHODS: Forty MHz transducers were used for in vitro IVUS assessment of 12 arterial segments (10 coronary arteries and 2 carotid arteries dissected from 5 different autopsy cases). IVUS acquisition was performed at a 0.5 mm/s speed after ligature of the branching points to generate a closed system. Lipid necrotic areas were defined by IVUS as large echolucent intraplaque areas surrounded by tissue with higher echodensity. To obtain histopathologic sections corresponding to IVUS cross sections, vessels were divided into consecutive 3 mm-long segments using the most distal recorded IVUS image as the starting reference. Then, samples were fixed with 10% buffered formalin, processed for histopathologic study, serially cut, and stained with the Movat penthacrome method. RESULTS: One hundred twenty-two sections were analyzed. Lipid pools were observed by histology in 30 cross sections (25%). IVUS revealed the presence of lipid pools in 19 of 122 cross sections with a sensitivity and specificity of 67% and 94%, respectively. CONCLUSIONS: High frequency transducers accurately identify lipid/necrotic pools and open new perspectives on future IVUS characterization of atherosclerotic plaques.


Subject(s)
Arteriosclerosis/diagnostic imaging , Calcinosis/diagnostic imaging , Carotid Stenosis/diagnostic imaging , Coronary Artery Disease/diagnostic imaging , Endosonography , Lipid Metabolism , Arteriosclerosis/pathology , Calcinosis/pathology , Calcium/metabolism , Carotid Stenosis/pathology , Coronary Artery Disease/pathology , Humans , Muscle, Smooth, Vascular/diagnostic imaging , Muscle, Smooth, Vascular/pathology , Necrosis , Sensitivity and Specificity
13.
G Ital Cardiol ; 28(10): 1063-71, 1998 Oct.
Article in English | MEDLINE | ID: mdl-9834857

ABSTRACT

BACKGROUND: The aim of the study was to evaluate with intravascular ultrasound (IVUS) the incidence of compensatory enlargement and paradoxical shrinkage in 50 de novo coronary lesions, using two different approaches: 1) a single cross-section analysis and 2) a multiple cross-section analysis per artery. A 3-D IVUS system based on contour detection of lumen and plaque was applied (image acquisition speed: 0.5 mm/s, digitization rate: 5 images/s). In each cross section, we determined: 1) the lumen area (LA), 2) the external elastic membrane area (EEMA), 3) the plaque+media complex (p+m), 4) the relative EEMA = cross section EEMA/reference EEMA, 5) the relative p+m area = cross-section p+m area/reference p+m area, 6) the lumen area stenosis: 1-(cross-section LA/reference LA). In the single cross-section analysis, compensatory vessel enlargement was defined as narrowest EEMA > reference EEMA, and paradoxical vessel constriction as narrowest EEMA < reference EEMA. In the multiple cross-section analysis, compensatory vessel enlargement was defined as the presence of a significant positive correlation between relative EEMA and relative p+m area and paradoxical vessel constriction as a significant negative correlation between relative EEMA and lumen area stenosis. RESULTS: In the single cross-section analysis, compensatory vessel enlargement and paradoxical constriction occurred in 58 and 42% of cases respectively. The multiple cross-section per artery analysis showed compensatory vessel enlargement in 80% of cases and paradoxical constriction in 36% of cases and revealed the combination of compensatory enlargement with paradoxical constriction in 22% of the analyzed segments. CONCLUSIONS: Compensatory enlargement of coronary arteries was underestimated by the single cross-section analysis and was observed in 80% of cases when a multiple cross-section per artery analysis was applied. Paradoxical shrinkage was less common and often occurred in combination with compensatory enlargement within the same analyzed segment.


Subject(s)
Coronary Artery Disease/diagnostic imaging , Coronary Vessels/diagnostic imaging , Adult , Aged , Algorithms , Coronary Artery Disease/pathology , Coronary Vessels/pathology , Female , Humans , Male , Middle Aged , Ultrasonography, Interventional , Vasoconstriction
14.
G Ital Cardiol ; 28(10): 1106-12, 1998 Oct.
Article in Italian | MEDLINE | ID: mdl-9834862

ABSTRACT

Hospitalization of patients with heart failure is often caused by poor adherence to drug therapy, by suboptimal utilization of ACE inhibitors and beta-blockers, and by the lack of systematic monitoring of patients after discharge. The aim of the study is to verify the impact of an outpatient management program on the hospitalization rate and functional status of patients with chronic heart failure. Over a five-year period, 435 patients entered our outpatient management program, which includes adjustment in medical therapy, patient education and visits timed according to the patient's status. Fifty-six percent of the patients were in New York Heart functional class I-II; 74% were male; mean age was 62 +/- 11 years. Heart failure was due to coronary heart disease in 42%, dilated cardiomyopathy in 35%, hypertensive heart disease in 13%, other etiologies in 10%. The following changes in medical therapy were made compared to the period before referral: ACE inhibitors in 88% of the patients vs 70% (p < 0.05), mean dose of enalapril and captopril respectively 18 +/- 6 mg vs 11 +/- 4 mg (p < 0.05) and 89 +/- 28 mg vs 61 +/- 34 mg (p < 0.05); digoxin in 71 vs 70% (NS); furosemide in 90 vs 87%; beta-blockers in 16 vs 6% (p < 0.05); amiodarone in 24 vs 16% (p < 0.05); oral anticoagulants in 22 vs 12% (p < 0.05); calcium channel blockers in 10 vs 16% (p < 0.05). During the follow-up period (35 +/- 11 months), there were 111 hospital admissions compared to 518 during the year before recruitment (p < 0.05). Seventy-two patients died (65 for cardiac causes) and four patients underwent cardiac transplantation. Functional status improved (301 patients in I-II functional class and 56 in III-IV after referral compared to 225 and 132 before referral, respectively). Our results were obtained through adjustment in pharmacological therapy, intensive patient education and therapeutic continuity made possible by our outpatient heart-failure clinic organization. It is likely that the increase in costs due to therapeutic adjustment and to the increase in the number of visits is counterbalanced by the reduced rate of hospital admissions.


Subject(s)
Ambulatory Care , Heart Failure/therapy , Outcome and Process Assessment, Health Care , Aged , Cardiovascular Agents/therapeutic use , Female , Hospitalization , Humans , Italy , Male , Middle Aged
16.
G Ital Cardiol ; 28(5): 579-85, 1998 May.
Article in Italian | MEDLINE | ID: mdl-9646075

ABSTRACT

We report our experience in the organization and management of a Cardiac First Aid Unit (CFAU) which was developed according to the guidelines of the National Hospital Cardiologists Association as a part of a General Emergency Department. The CFAU is a 24 hour service directed by a Senior Cardiologist. The medical facilities are two monitored beds for short-term observation (cardio-pulmonary resuscitation instruments, echocardiograph, endoesophageal pacing for overdrive). The main goals of CFAU are the treatment of cardiac emergencies (acute myocardial infarction, pulmonary oedema, threatening arrhythmias, etc.) and the screening of patients presenting with chest pain or symptoms suggesting cardio-vascular involvement. In one year, there were 1700 admissions to the CFAU (3.7% of the total Medical Emergencies). The frequency of hospital admissions was 81% and coronary heart disease accounted for 38.3%. A sample of 100 consecutive patients with acute myocardial infarction admitted in the period October-November 1996 was examined to explore the impact of a CFAU on in-hospital delay in the application of thrombolysis. Thirty-nine patients were treated with thrombolysis, 15 in CFAU and 24 in Coronary Care Unit (CCU). The mean in-hospital delay to thrombolysis was 30 +/- 14 minutes for those treated in CFAU and 55 +/- 12 minutes for those treated in CCU (p < 0.0004). In a second sample of 100 consecutive patients with undetermined chest pain, by means of our protocol of short observation we identified 22 cases of acute myocardial infarction (AMI), 8 cases of angina pectoris, 18 various cardiac causes, 30 non-cardiac causes, 22 absent disease. ECG was obtained in all 100 pts, cardiac enzymes in 74, echocardiogram and chest X-ray in 48, ST monitoring in 26. In no case was diagnosed AMI after discharge. Cardiac First Aid Unit, as designed in our Hospital, suits the needs of a level II Emergency Department. It is a useful tool to shorten in-hospital delay to thrombolysis and to screen chest pain with nearly complete safety.


Subject(s)
Cardiovascular Diseases/diagnosis , Coronary Care Units/organization & administration , Emergency Service, Hospital/organization & administration , First Aid , Adult , Aged , Female , Humans , Male , Middle Aged , Rome
19.
Int J Card Imaging ; 10(2): 131-6, 1994 Jun.
Article in English | MEDLINE | ID: mdl-7963751

ABSTRACT

The resumption of contractility of asynergic segments in survivors after acute myocardial infarction (AMI) may be detected in viable myocardial areas. We have correlated the detection of viable myocardium, assessed with low dose dobutamine testing, with coronary angiography and clinical outcome in 66 consecutive survivors of AMI using the echocardiographic evidence of left ventricular wall motion abnormalities. The test enabled the identification of two groups: group A, comprising 32 patients (pts) demonstrating wall motion recovery at dobutamine infusion and group B, comprising 34 pts without wall motion recovery. The mean basal asynergy score index was 5.8 +/- 4.2 in group A and 6.0 +/- 4.2 in group B (p = ns). With dobutamine testing the score decreased to 2.8 +/- 3.6 in group A (p < 0.001 with respect to basal value), while it did not change significantly in group B. Left ventricular end diastolic volume (ml) was similar in the two groups (114 +/- 35 vs 107 +/- 79, p = NS). The infarct related artery (IRA) patency rate was 87.5% in group A, vs 26.5% in group B (p < 0.001). After a mean follow-up of 11 +/- 5 months, group A pts had basal asynergy score improvement (2.6 +/- 3.1, p < 0.001) and mild left ventricular end diastolic volume (ml) reduction, (108 +/- 32, p = NS), while group B pts had left ventricle end diastolic volume enlargement (130 +/- 38, p < 0.05), without score asynergy modification. Moreover all pts who experienced heart failure at follow-up were in group B.(ABSTRACT TRUNCATED AT 250 WORDS)


Subject(s)
Coronary Vessels/diagnostic imaging , Dobutamine , Echocardiography , Myocardial Infarction/diagnostic imaging , Vascular Patency , Adult , Aged , Cardiac Output, Low/physiopathology , Cardiac Volume/physiology , Coronary Angiography , Coronary Disease/diagnostic imaging , Coronary Vessels/pathology , Dobutamine/administration & dosage , Echocardiography/methods , Female , Follow-Up Studies , Humans , Male , Middle Aged , Myocardial Contraction/physiology , Myocardial Infarction/pathology , Myocardial Infarction/physiopathology , Myocardium/pathology , Sensitivity and Specificity , Ventricular Function, Left/physiology
20.
G Ital Cardiol ; 23(2): 177-84, 1993 Feb.
Article in Italian | MEDLINE | ID: mdl-8491360

ABSTRACT

In this paper we analyze the possibility of investigating the various modalities of pump function alteration by the echocardiographic technique through examination of the different parts of the cardiac cycle. While M-Mode and 2D echocardiography make a precise assessment of the systolic function parameters possible, with the Echo-Doppler technique we can study diastolic function and obtain information about many hemodynamic parameters. "Strain dependent" and "strain independent" diastolic function are studied almost exclusively with the Echo-Doppler technique: the diagnosis of restrictive cardiomyopathy can be established without invasive procedures such as cardiac catheterization. We suggest that, in most heart diseases with cardiac failure, diastolic and systolic dysfunction coexist: in mitral and aortic regurgitation, echocardiography can give precise information on the presence of ventricular dysfunction, even in the presence of very few or no symptoms, which helps the cardiologist make an early surgical or non surgical decision when dealing with such valve pathologies.


Subject(s)
Echocardiography/methods , Heart Failure/diagnostic imaging , Myocardial Contraction , Ventricular Function, Left , Cardiomyopathies/diagnostic imaging , Cardiomyopathies/physiopathology , Diastole , Heart Failure/physiopathology , Humans , Systole
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