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1.
Clin Cardiol ; 46(9): 1021-1027, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37246477

ABSTRACT

Ischemic heart disease (IHD) is one of the leading causes of death and morbidity in the world. The role of primary prevention is particularly relevant since IHD can be for a long time asymptomatic until the occurrence of a condition that could lead to plaque instabilization or increased oxygen demand. Secondary prevention is also essential to improve patients' prognosis and quality of life. The aim of this review is to provide a detailed and updated description of the role of sport and physical activity both in primary prevention and secondary prevention. In primary prevention, sport and physical activity are effective through the control of the main cardiovascular risk factors, such as hypertension and dyslipidemia. In secondary prevention, sport and physical activity can lead to a reduction in subsequent coronary events. Every effort must be made to encourage the performance of physical and sports activity both in asymptomatic subjects at risk and those with a history of IHD.


Subject(s)
Myocardial Ischemia , Sports , Humans , Secondary Prevention , Quality of Life , Myocardial Ischemia/prevention & control , Myocardial Ischemia/epidemiology , Exercise , Risk Factors , Primary Prevention
2.
Int J Cardiol ; 383: 166-174, 2023 07 15.
Article in English | MEDLINE | ID: mdl-37178805

ABSTRACT

Three-dimensional electroanatomical mapping (EAM) has the potential to identify the pathological substrate underlying ventricular arrhythmias (VAs) in different clinical settings by detecting myocardial areas with abnormally low voltages, which reflect the presence of different cardiomyopathic substrates. In athletes, the added value of EAM may be to enhance the efficacy of third-level diagnostic tests and cardiac magnetic resonance (CMR) in detecting concealed arrhythmogenic cardiomyopathies. Additional benefits of EAM in the athlete include the potential impact on disease risk stratification and the consequent implications for eligibility to competitive sports. This opinion paper of the Italian Society of Sports Cardiology aims to guide general sports medicine physicians and cardiologists on the clinical decision when to eventually perform an EAM study in the athlete, highlighting strengths and weaknesses for each cardiovascular disease at risk of sudden cardiac death during sport. The importance of early (preclinical) diagnosis to prevent the negative effects of exercise on phenotypic expression, disease progression, and worsening of the arrhythmogenic substrate is also addressed.


Subject(s)
Cardiology , Sports , Humans , Expert Testimony , Athletes , Myocardium/pathology , Arrhythmias, Cardiac/diagnosis , Arrhythmias, Cardiac/pathology , Death, Sudden, Cardiac/prevention & control , Death, Sudden, Cardiac/pathology
3.
J Cardiovasc Med (Hagerstown) ; 24(3): 217-218, 2023 03 01.
Article in English | MEDLINE | ID: mdl-36729605
5.
Panminerva Med ; 2022 Sep 30.
Article in English | MEDLINE | ID: mdl-36178109

ABSTRACT

The coronavirus-19 disease (COVID-19) related pandemic have deeply impacted human health, economy, psychology and sociality. Possible serious cardiac involvement in the infection has been described, raising doubts about complete healing after the disease in many clinical settings. Moreover, there is the suspicion that the vaccines, especially those based on mRNA technology, can induce myopericarditis. Myocarditis or pericarditis related scars can represent the substrate for lifethreatening arrhythmias, triggered by physical activity. A crucial point is how to evaluate an athlete after a Covid-19 infection ensuring a safe return to play without increasing the number of unnecessary disqualifications from sports competitions. The lack of conclusive scientific data significantly increases the difficulty to propose recommendations and guidelines on this topic. At the same time, the psychological and physical negative consequences of unnecessary sports restriction must be taken into account. The present document aims to provide an updated brief review of the current knowledge about the COVID-19 cardiac involvement and how to recognize it and to offer a roadmap for the management of the athletes after a Covid-19 infections, including subsequent impact on exercise recommendations. Our document exclusively refers to cardiovascular implications of the disease, but pulmonary consequences are also considered.

6.
Int J Cardiol ; 364: 169-177, 2022 10 01.
Article in English | MEDLINE | ID: mdl-35662561

ABSTRACT

Molecular genetic testing is an increasingly available test to support the clinical diagnosis of inherited cardiovascular diseases through identification of pathogenic gene variants and to make a preclinical genetic diagnosis among proband's family members (so-called "cascade family screening"). In athletes, the added value of molecular genetic testing is to assist in discriminating between physiological adaptive changes of the athlete's heart and inherited cardiovascular diseases, in the presence of overlapping phenotypic features such as ECG changes, imaging abnormalities or arrhythmias ("grey zone"). Additional benefits of molecular genetic testing in the athlete include the potential impact on the disease risk stratification and the implications for eligibility to competitive sports. This position statement of the Italian Society of Sports Cardiology aims to guide general sports medical physicians and sports cardiologists on clinical decision as why and when to perform a molecular genetic testing in the athlete, highlighting strengths and weaknesses for each inherited cardiovascular disease at-risk of sudden cardiac death during sport. The importance of early (preclinical) diagnosis to prevent the negative effects of exercise on phenotypic expression, disease progression and worsening of the arrhythmogenic substrate is also addressed.


Subject(s)
Cardiology , Sports , Arrhythmias, Cardiac , Athletes , Death, Sudden, Cardiac/prevention & control , Electrocardiography , Humans , Molecular Biology , Sports/physiology
7.
J Cardiovasc Med (Hagerstown) ; 22(11): 874-891, 2021 Dec 01.
Article in English | MEDLINE | ID: mdl-33882535

ABSTRACT

Since 1989, SIC Sport and a FMSI, in partnership with leading Italian Cardiological Scientific Associations (ANCE, ANMCO and SIC) have produced Cardiological Guidelines for Completive Sports Eligibility for athletes with heart disease (COCIS -- 1989, 1995, 2003, 2009 and 2017). The English version of the Italian Cardiological Guidelines for Competitive Sports Eligibility for athletes with heart disease was published in 2013 in this Journal. This publication is an update with respect to the document previously published in English in 2013. It includes the principal innovations that have emerged over recent years, and is divided into five main chapters: arrhythmias, ion channel disorders, congenital heart diseases, acquired valve diseases, cardiomyopathies, myocarditis and pericarditis and ischemic heart disease. Wherever no new data have been introduced with respect to the 2013 publication, please refer to the previous version. This document is intended to complement recent European and American guidelines but an important difference should be noted. The European and American guidelines indicate good practice for people engaging in physical activity at various levels, not only at the competitive level. In contrast, the COCIS guidelines refer specifically to competitive athletes in various sports including those with high cardiovascular stress. This explains why Italian guidelines are more restrictive than European and USA ones. COCIS guidelines address 'sports doctors' who, in Italy, must certify fitness to participate in competitive sports. In Italy, this certificate is essential for participating in any competition.


Subject(s)
Athletes , Eligibility Determination , Heart Diseases/diagnosis , Sports Medicine , Arrhythmias, Cardiac/diagnosis , Cardiology/methods , Electrocardiography , Exercise/physiology , Heart Defects, Congenital/diagnosis , Humans , Italy , Physical Examination
8.
J Cardiovasc Med (Hagerstown) ; 20(10): 631-639, 2019 Oct.
Article in English | MEDLINE | ID: mdl-31436678

ABSTRACT

: Regular physical activity is a cornerstone in the prevention and treatment of atherosclerotic cardiovascular disease (CVD) due to its positive effects in reducing several cardiovascular risk factors. Current guidelines on CVD suggest for healthy adults to perform at least 150 min/week of moderate intensity or 75 min/week of vigorous intensity aerobic physical activity. The current review explores the effects of physical activity on some risk factors, specifically: diabetes, dyslipidemia, hypertension and hyperuricemia. Physical activity induces an improvement in insulin sensitivity and in glucose control independently of weight loss, which may further contribute to ameliorate both diabetes-associated defects. The benefits of adherence to physical activity have recently proven to extend beyond surrogate markers of metabolic syndrome and diabetes by reducing hard endpoints such as mortality. In recent years, obesity has greatly increased in all countries. Weight losses in these patients have been associated with improvements in many cardiometabolic risk factors. Strategies against obesity included caloric restriction, however greater results have been obtained with association of diet and physical activity. Similarly, the beneficial effect of training on blood pressure via its action on sympathetic activity and on other factors such as improvement of endothelial function and reduction of oxidative stress can have played a role in preventing hypertension development in active subjects. The main international guidelines on prevention of CVD suggest to encourage and to increase physical activity to improve lipid pattern, hypertension and others cardiovascular risk factor. An active action is required to the National Society of Cardiology together with the Italian Society of Sports Cardiology to improve the prescription of organized physical activity in patients with CVD and/or cardiovascular risk factors.


Subject(s)
Cardiology/standards , Cardiovascular Diseases/prevention & control , Exercise , Healthy Lifestyle , Risk Reduction Behavior , Cardiovascular Diseases/diagnosis , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/physiopathology , Consensus , Health Status , Humans , Italy , Protective Factors , Risk Assessment , Risk Factors , Societies, Medical , Time Factors
9.
Am Heart J ; 203: 12-16, 2018 09.
Article in English | MEDLINE | ID: mdl-29966801

ABSTRACT

The main objective of cardiovascular disease prevention is to reduce morbidity and mortality by promoting a healthy lifestyle, reducing risk factors, and improving adherence to medications. Secondary prevention after an acute coronary syndrome has proved to be effective in reducing new cardiovascular events, but its limited use in everyday clinical practice suggests that there is considerable room for improvement. The short-term results of evidence-based studies of nurse-coordinated secondary prevention programs have been positive, but there is a lack of long-term outcome data. The Alliance for the Secondary Prevention of Cardiovascular Disease in the Emilia-Romagna region (ALLEPRE) is a multicenter, randomized, controlled trial designed to compare the effects of a structured nurse-coordinated intensive intervention on long-term outcomes and risk profiles after an acute coronary syndrome with those of the standard of care. All of the patients randomized to the intervention group take part in 9 one-to-one sessions with an experienced nurse from the participating centers with the aim at promoting healthy lifestyles, reducing risk factors, and increasing adherence to medication over a mean period of 5 years. The primary clinical end point is the reduction in the risk of the 5-year occurrence of major adverse events (a composite of cardiovascular mortality, nonfatal reinfarction, and nonfatal stroke). The primary surrogate end point is the achievement of prespecified targets relating to classical risk factors, lifestyle modifications, and adherence to pharmacological therapy after 2 years of follow-up. Coronary heart disease is a chronic degenerative disease, and patients who recover from an acute coronary syndrome (ACS) are at high risk of developing recurrent events.1 Although secondary prevention measures have proved to be effective and are strongly recommended by all of the international guidelines,2., 3. the 4 EUROASPIRE surveys4., 5., 6., 7., 8. showed that there was still a high prevalence of conventional risk factors, that secondary prevention measures were inadequately implemented, and that their main goals were often not reached. In addition, there were considerable discrepancy in secondary prevention practices between centers and countries, and a widespread underuse of cardiac prevention and rehabilitation programs despite their demonstrated effectiveness in reducing cardiovascular risk over time.9., 10. Over the last 10 years, nurses have been increasingly involved in successful cardiovascular risk management,11., 12., 13. but although this has improved levels of cardiovascular risk, no clear reduction in hard end points such as major cardiovascular adverse events and mortality has been demonstrated.10 The aim of the ALLEPRE trial is to evaluate the benefit of a homogeneous, structured, secondary prevention intervention program, fully coordinated by nurses from in- and outpatient clinics, in terms of cardiovascular risk profiles and major clinical events in ACS patients living in the large Emilia-Romagna region of Italy.


Subject(s)
Acute Coronary Syndrome/prevention & control , Counseling , Health Knowledge, Attitudes, Practice , Risk Reduction Behavior , Acute Coronary Syndrome/nursing , Female , Follow-Up Studies , Humans , Male , Prospective Studies , Secondary Prevention , Time Factors , Treatment Outcome
10.
J Am Coll Cardiol ; 71(17): 1869-1877, 2018 05 01.
Article in English | MEDLINE | ID: mdl-29540324

ABSTRACT

BACKGROUND: Although clopidogrel is still frequently used in patients with acute coronary syndromes (ACS), its efficacy is hampered by interpatient response variability caused by genetic polymorphisms associated with clopidogrel's metabolism. OBJECTIVES: The goal of this study was to evaluate whether selecting antiplatelet therapy (clopidogrel, prasugrel, or ticagrelor) on the basis of a patient's genetic and clinical characteristics leads to better clinical outcomes compared with the standard of care, which bases the selection on clinical characteristics alone. METHODS: Patients hospitalized for ACS were randomly assigned to standard of care or the pharmacogenomic arm, which included the genotyping of ABCB1, CYP2C19*2, and CYP2C19*17 using an ST Q3 system that provides data within 70 min at each patient's bedside. The patients were followed up for 12 ± 1 month for the primary composite endpoint of cardiovascular death and the first occurrence of nonfatal myocardial infarction, nonfatal stroke, and major bleeding defined according to Bleeding Academic Research Consortium type 3 to 5 criteria. RESULTS: After enrolling 888 patients, the study was prematurely stopped. Clopidogrel was used more frequently in the standard-of-care arm (50.7% vs. 43.3%), ticagrelor in the pharmacogenomic arm (42.6% vs. 32.7%; p = 0.02), and prasugrel was equally used in both arms. The primary endpoint occurred in 71 patients (15.9%) in the pharmacogenomic arm and in 114 (25.9%) in the standard-of-care arm (hazard ratio: 0.58; 95% confidence interval: 0.43 to 0.78; p < 0.001). CONCLUSIONS: A personalized approach to selecting antiplatelet therapy for patients with ACS may reduce ischemic and bleeding events. (Pharmacogenetics of Clopidogrel in Patients With Acute Coronary Syndromes [PHARMCLO]; NCT03347435).


Subject(s)
Acute Coronary Syndrome/drug therapy , Cytochrome P-450 CYP2C19/genetics , Pharmacogenomic Testing , Platelet Aggregation Inhibitors/therapeutic use , Receptors, Purinergic P2Y12/genetics , ATP Binding Cassette Transporter, Subfamily B/genetics , Acute Coronary Syndrome/genetics , Adult , Aged , Aged, 80 and over , Female , Genotype , Humans , Male , Middle Aged
11.
Article in English | MEDLINE | ID: mdl-27390211

ABSTRACT

BACKGROUND: The clinical profile and arrhythmic outcome of competitive athletes with isolated nonischemic left ventricular (LV) scar as evidenced by contrast-enhanced cardiac magnetic resonance remain to be elucidated. METHODS AND RESULTS: We compared 35 athletes (80% men, age: 14-48 years) with ventricular arrhythmias and isolated LV subepicardial/midmyocardial late gadolinium enhancement (LGE) on contrast-enhanced cardiac magnetic resonance (group A) with 38 athletes with ventricular arrhythmias and no LGE (group B) and 40 healthy control athletes (group C). A stria LGE pattern with subepicardial/midmyocardial distribution, mostly involving the lateral LV wall, was found in 27 (77%) of group A versus 0 controls (group C; P<0.001), whereas a spotty pattern of LGE localized at the junction of the right ventricle to the septum was respectively observed in 11 (31%) versus 10 (25%; P=0.52). All athletes with stria pattern showed ventricular arrhythmias with a predominant right bundle branch block morphology, 13 of 27 (48%) showed ECG repolarization abnormalities, and 5 of 27 (19%) showed echocardiographic hypokinesis of the lateral LV wall. The majority of athletes with no or spotty LGE pattern had ventricular arrhythmias with a predominant left bundle branch block morphology and no ECG or echocardiographic abnormalities. During a follow-up of 38±25 months, 6 of 27 (22%) athletes with stria pattern experienced malignant arrhythmic events such as appropriate implantable cardiac defibrillator shock (n=4), sustained ventricular tachycardia (n=1), or sudden death (n=1), compared with none of athletes with no or LGE spotty pattern and controls. CONCLUSIONS: Isolated nonischemic LV LGE with a stria pattern may be associated with life-threatening arrhythmias and sudden death in the athlete. Because of its subepicardial/midmyocardial location, LV scar is often not detected by echocardiography.


Subject(s)
Athletes , Cicatrix/diagnostic imaging , Cicatrix/physiopathology , Death, Sudden, Cardiac , Magnetic Resonance Imaging/methods , Tachycardia, Ventricular/diagnostic imaging , Tachycardia, Ventricular/physiopathology , Adolescent , Adult , Case-Control Studies , Contrast Media , Female , Humans , Male , Meglumine/analogs & derivatives , Middle Aged , Organometallic Compounds
13.
J Interv Card Electrophysiol ; 34(1): 105-13, 2012 Jun.
Article in English | MEDLINE | ID: mdl-21993598

ABSTRACT

AIMS: Complications of implantable cardioverter-defibrillator (ICD) therapy are often linked to transvenous lead insertion, lead failure, or infections. An entirely subcutaneous ICD system (S-ICD) avoids the need for the placement of electrodes within the heart and can provide clinical advantages. METHODS AND RESULTS: A 45-year-old patient with Brugada syndrome (spontaneous type 1 Brugada ECG, syncope during fever, family history of sudden death <45 years old) was implanted with an entirely S-ICD. A left lateral incision was made over the sixth rib in the anterior axillary line for pocket formation and pulse generator placement. The subcutaneous electrode was placed subcutaneously, parallel to and 2 cm to the left of the sternal midline, and was connected to the generator. The insertion of the system was guided only by anatomical landmarks, and no fluoroscopy was required. Ventricular fibrillation was induced and terminated by a 65-J shock (15-J safety margin). No complication occurred, and subsequent course was uneventful. CONCLUSIONS: S-ICD is a new system for delivering lifesaving shock therapy in patients at risk of sudden cardiac death, without the need of intracardiac leads. Young patients with inherited arrhythmogenic syndromes could benefit the most from this system. This is the first case of Brugada syndrome implanted with a first-generation S-ICD in Italy.


Subject(s)
Brugada Syndrome/diagnosis , Brugada Syndrome/prevention & control , Defibrillators, Implantable , Heart Failure/diagnosis , Heart Failure/prevention & control , Humans , Male , Middle Aged , Treatment Outcome
14.
J Cardiovasc Med (Hagerstown) ; 11(8): 599-604, 2010 Aug.
Article in English | MEDLINE | ID: mdl-20442667

ABSTRACT

PURPOSE OF STUDY: We report our experience with ultrafiltration to remove fluid overload in patients with diuretic-resistant, decompensated, congestive heart failure. METHODS: From 2005 to 2008, 42 patients with heart failure and left ventricular ejection fraction less than 40% were treated with ultrafiltration. Patients were hospitalized for acute decompensation. Mean age was 69 years (67% men). Cause of heart failure was ischemic in 52% of cases. New York Heart Association (NYHA) class was III (64%) or IV (36%). All patients were on optimal heart failure drugs. Average dose of furosemide before ultrafiltration was 250 mg. Exclusion criteria were contraindications to anticoagulants, hematocrit more than 50%, glomerular filtration rate less than 30 ml/min and cardiogenic shock. Ultrafiltration was performed using a venous femoral bilumen catheter and anticoagulation with heparin. RESULTS: Each patient underwent one to four ultrafiltration treatments (total 70). Mean duration of a treatment was 6 h. Eighty-six percent of treatments removed more than 4000 ml of fluids; 10% removed 2000-4000 ml; 4% removed less than 2000 ml (1600-6900 ml). One ultrafiltration was aborted because of persistent hypotension. Other complications include two cases of bleeding from vascular access and six cases of worsened renal function. One patients required dialysis. Six-month mortality after ultrafiltration was 26%. Hospitalization rate, 6 months after, was 30% (compared to 66% 6 months before). Average furosemide dose, 6 months after, was 125 mg. CONCLUSION: Ultrafiltration removed fluid overload in diuretic-resistant, severe, congestive heart failure in our single-center experience. Six months after ultrafiltration, hospitalization rates were reduced by 36% and furosemide dose was 50% lower, compared to the previous 6 months. Worsened renal function was the most common complication (14% of patients).


Subject(s)
Diuretics/therapeutic use , Drug Resistance , Heart Failure/therapy , Hemofiltration , Water-Electrolyte Balance , Acute Disease , Aged , Aged, 80 and over , Catheterization, Peripheral , Female , Femoral Vein , Heart Failure/drug therapy , Heart Failure/mortality , Heart Failure/physiopathology , Hemofiltration/adverse effects , Hemofiltration/mortality , Hospitalization , Humans , Italy , Kidney Diseases/etiology , Kidney Diseases/physiopathology , Male , Middle Aged , Patient Readmission , Recurrence , Retrospective Studies , Severity of Illness Index , Stroke Volume , Time Factors , Treatment Failure , Ventricular Function, Left , Water-Electrolyte Balance/drug effects
15.
Ital Heart J Suppl ; 5(8): 664-7, 2004 Aug.
Article in Italian | MEDLINE | ID: mdl-15554023

ABSTRACT

The present report describes the case of a 61-year-old woman with malignant fibrous histiocytoma of the left atrium originating from the left atrial free wall, operated on in emergency for a suspected large left atrial myxoma that, at the echo scan, was consistently protruding through the left atrioventricular orifice at each diastole and was almost completely occluding the left ventricular inflow, causing signs of congestive heart failure and severe dyspnea. Surgery was performed as radically as possible, but the histological examination of the specimen revealed the exact diagnosis of the neoplasm. About 75% of primary tumors are benign and 75% of these are atrial myxomas. The malignant tumors consist of various sarcomas: myxosarcoma, liposarcoma, angiosarcoma, fibrosarcoma, leiomyosarcoma, osteosarcoma, synovial sarcoma, rhabdomyosarcoma, undifferentiated sarcoma, reticulum cell sarcoma, neurofibrosarcoma, and malignant fibrous histiocytoma. The long-term results for sarcomas are very poor and there are few survivors after several months from surgery due to the extent of local spread and invasion or because of the frequent distant metastases. Malignant fibrous histiocytoma constitutes about 2% of all cardiac malignancies, which might grow within several localized areas, occasionally in the heart. Echocardiography represents the best examination procedure for both diagnosis and follow-up of patients with cardiac tumors.


Subject(s)
Heart Neoplasms/diagnosis , Histiocytoma, Benign Fibrous/diagnosis , Female , Humans , Middle Aged
16.
Am Heart J ; 148(3): 378-85, 2004 Sep.
Article in English | MEDLINE | ID: mdl-15389222

ABSTRACT

BACKGROUND: Most patients with acute myocardial infarction (AMI) are admitted to hospitals without percutaneous transluminal coronary angioplasty (PTCA) facilities or are initially managed in a prehospital mobile unit. Thrombolysis remains the most readily available reperfusion treatment in those settings, but the optimal subsequent strategy in those patients is unclear. If a mechanical recanalization is likely to be performed in an emergency, it is probably desirable that the patient receives abciximab, the glycoprotein IIb/IIIa antagonist with the strongest evidence of benefit for angioplasty in AMI. OBJECTIVE: The aim of this trial is to compare the effects on clinical outcome and cost-effectiveness of 2 strategies after immediate treatment with abciximab and half-dose reteplase for ST-elevation AMI: to manage the patients conservatively (referring them for rescue PTCA only if needed) or to immediately send all patients for emergency coronary angioplasty. METHODS: The Combined Abciximab RE-teplase Stent Study in Acute Myocardial Infarction (CARESS in AMI) is an open, prospective, randomized, multicenter clinical trial conducted in patients with high-risk ST-segment elevation AMI treated within 12 hours from symptom onset in hospitals without PTCA facilities or in a prehospital mobile intensive care unit. Apart from contraindications to thrombolysis, the main exclusion criteria are age > or =75 years and a past history of CABG surgery or a percutaneous coronary intervention procedure involving the infarct-related artery. Enrollment will be performed in hospitals without PTCA facilities or directly in the ambulance if a dedicated system is in place for prehospital diagnosis and treatment of AMI. Patients will receive half-dose reteplase and full-dose abciximab and will subsequently be randomized to conventional medical therapy (with referral for emergency rescue PTCA allowed in selected cases) or emergency angioplasty. The primary end point is the 30-day combined incidence of mortality, reinfarction, and refractory ischemia. In order to obtain a 95% power (2-sided) to detect a 42% reduction in the primary end point, 900 patients are required in each arm of the study. Secondary end points include the 1-year composite end point of mortality, reinfarction, refractory ischemia, and hospital readmission because of heart failure; resource use at 30 days and 1 year; and the incidence of inhospital stroke and bleeding complications in the 2 groups. RESULTS: Seventy-four patients have been randomized (as of March 10, 2004); results are expected in June 2005. CONCLUSION: This study will establish whether angioplasty must be started as soon as possible in all patients who receive combined pharmacologic reperfusion with the glycoprotein IIb/IIIa inhibitor abciximab and half-dose thrombolysis or whether it can be postponed or skipped in patients with signs of successful reperfusion, with obvious organizational advantages.


Subject(s)
Antibodies, Monoclonal/therapeutic use , Immunoglobulin Fab Fragments/therapeutic use , Myocardial Infarction/drug therapy , Plasminogen Activators/therapeutic use , Recombinant Proteins/therapeutic use , Thrombolytic Therapy , Tissue Plasminogen Activator/therapeutic use , Abciximab , Cost-Benefit Analysis , Drug Therapy, Combination , Emergency Medical Services , Humans , Myocardial Infarction/mortality , Myocardial Infarction/therapy , Platelet Glycoprotein GPIIb-IIIa Complex/antagonists & inhibitors , Prospective Studies , Recurrence , Stents , Treatment Outcome
17.
J Nucl Cardiol ; 10(5): 473-81, 2003.
Article in English | MEDLINE | ID: mdl-14569240

ABSTRACT

BACKGROUND: The main limitation of myocardial single photon emission computed tomography (SPECT) in detecting hibernating myocardium is the poor delivery of radiotracers in hypoperfused areas supplied by severely stenotic coronary arteries. Increasing local availability of radiotracers by intracoronary injection might represent an attractive solution. The hypothesis that the intracoronary administration of sestamibi could improve myocardial SPECT accuracy in detecting hibernating myocardium was addressed in this pilot study. METHODS AND RESULTS: Seven patients with prior myocardial infarction and severe stenosis of the infarct-related artery underwent myocardial SPECT after intracoronary injection of technetium 99m sestamibi immediately before percutaneous transluminal coronary angioplasty (PTCA). Wall motion and perfusion were evaluated, before and 1 month after PTCA, by 2-dimensional echocardiography and rest-redistribution thallium 201 SPECT. A "low-flow area" was identified on the pre-PTCA Tl-201 SPECT image as the area with less than 50% of maximum radiotracer uptake. Changes in wall motion and perfusion in the low-flow area were compared with results of intracoronary sestamibi imaging. On a pixel-by-pixel analysis, intracoronary sestamibi predicted perfusion recovery within the low-flow area with a 91% sensitivity, a 78% specificity, and an 82% overall accuracy. Only in the 5 patients with an extent of sestamibi uptake greater than one third of the low-flow area was an improved regional and global left ventricular wall motion observed after PTCA (wall motion score index decreased from 1.95 +/- 0.28 to 1.60 +/- 0.34, P =.007; left ventricular ejection fraction increased from 42% +/- 7% to 49% +/- 7%, P =.001; asynergic segments in the low-flow area decreased from 3.6 +/- 0.9 to 1.8 +/- 1.5, P =.021). CONCLUSIONS: In patients with prior myocardial infarction and severe stenosis of the infarct-related artery, sestamibi uptake after intracoronary administration identified viable myocardium that was undetected after rest-redistribution thallium SPECT but capable of clinically significant contractile improvement after revascularization.


Subject(s)
Angioplasty, Balloon, Coronary , Carotid Stenosis/diagnostic imaging , Carotid Stenosis/therapy , Coronary Vessels/diagnostic imaging , Injections, Intra-Arterial/methods , Technetium Tc 99m Sestamibi/administration & dosage , Ventricular Dysfunction, Left/diagnostic imaging , Adult , Aged , Carotid Stenosis/diagnosis , Carotid Stenosis/etiology , Female , Humans , Male , Middle Aged , Myocardial Contraction , Myocardial Infarction/complications , Myocardial Infarction/diagnosis , Myocardial Infarction/diagnostic imaging , Myocardial Infarction/therapy , Pilot Projects , Prognosis , Radiopharmaceuticals/administration & dosage , Recovery of Function , Reproducibility of Results , Sensitivity and Specificity , Stroke Volume , Tissue Survival , Tomography, Emission-Computed, Single-Photon/methods , Treatment Outcome , Ventricular Dysfunction, Left/diagnosis , Ventricular Dysfunction, Left/etiology , Ventricular Dysfunction, Left/therapy
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