[Prognostic value of normal myocardial perfusion scintigraphy with 201Tl in post-acute myocardial infarction].

Objective: The purpose of this work has been to determine the prognostic value of normal thallium-201 myocardial perfusion scintigraphy (MPS) in patients who had suffered myocardial infarction in the three months prior to the examination.

Material And Methods: A stress test followed by (201)Tl Gated SPECT was performed. A follow-up was made of 63 patients with normal perfusion scintigraphy.

[Quantification of myocardial scintigraphy in patients with low probability of coronary artery disease. Normal values of thallium-201 gated SPECT].

Introduction: This study has aimed to establish quantitative normality parameters in the thallium-201 GATED SPECT and to assess the changes related to age, gender, risk factors and stress testing.

Methods: A total of 427 patients with low pre-test likelihood of coronary artery disease were selected (45.5% men).

[Myocardial perfusion study in patients who do not reach submaximal frequency on ergometry].

Unlabelled: The aim of the study was to evaluate the sensitivity and specificity of TI-201 myocardial perfusion SPECT for the diagnosis of ischaemic cardiopathy in a group of patients with chronotropic insufficiency.

Materials And Methods: The examinations of 750 patients who had attended for the diagnosis of ischaemic cardiopathy during 2005-2006 were selected. 28 % (n = 209) did not reach submaximal frequency.

[Hyperemic reactivity scintigraphy in endothelial function].

Objective: The aim of this study was to compare a recently described method to evaluate endothelial function; the hyperemic reactivity scintigraphy (HRS) with the ultrasonographic flow-mediated dilatation (FMD) in brachial artery and its relationship with myocardial SPECT.

Methods: 42 consecutive patients that underwent myocardial scintigraphy were included. Thirty-six patients had simultaneous measurement of FMD.

Ischaemic related transitory left ventricular dysfunction in 201Tl gated SPECT.

Aim: To report our data concerning the changes in post-stress and at-rest left ventricular ejection fraction and ventricular volumes in patients with thallium gated SPECT.

Methods: Post-stress and at-rest thallium gated SPECT was performed in 629 consecutive patients; left ventricular ejection fraction (LVEF), left ventricular volumes and quantitative perfusion data were obtained. Transitory left ventricular dysfunction was diagnosed when post-stress LVEF did not increase at least 5% from LVEF at-rest.

[Prevalence of an abnormal ankle-brachial index in relation to the cardiovascular risk estimated by the Framingham function].

Background And Objective: The measurement of the ankle-brachial index (ABI) is a straightforward method for the detection of atherosclerosis in the lower limbs. An abnormal ABI (< 0.9 or > 1.

[Silent ischemia versus angina in Tl-201 tomoscintigraphy].

Introduction: The aim of this work was to describe the variables associated to silent ischemia in patients with reversible perfusion defects in poststress myocardial perfusion scintigraphy.

Methods: Tl-201 myocardial perfusion SPECT of 522 patients showing total or partially reversible perfusion defects after exercise testing were quantitatively analyzed retrospectively. Relationship between silent ischemia, size of perfusion defect and presence of risk factors was performed.

[Prognostic value of normal myocardial radionuclide scan in patients with positive treadmill test].

The purpose of this study was to determine the prognostic value of a normal 201Tl scan in patients with a positive treadmill exercise stress test. We analyzed retrospectively 85 consecutive patients with a positive treadmill exercise test and normal Tl201 scan who were studied for the diagnosis of coronary artery disease from January 1996 to December 2000. The pretest probability of coronary artery disease was intermediate or high in all patients.

[Dilated cardiomyopathy and autoimmunity: an overview of current knowledge and perspectives].

The diagnosis of idiopathic dilated cardiomyopathy is assigned to patients with left ventricular systolic dysfunction and dilatation in the absence of any other documented cause. Idiopathic dilated cardiomyopathy is presumed to have a multifactorial origin, possibly including autoimmune mechanisms. We reviewed the current state of knowledge of this topic, including a pathophysiological hypothesis postulating a relation between an autoimmune process and sympathetic over-stimulation and systolic dysfunction.

[Agenesis of the left coronary trunk. A case report and bibliographic review].

Clinical and angiographic features are described in a fifty-five years old man, with long-standing clinical manifestations of ischemic heart disease. In addition to severe coronary atherosclerosis, congenital atresia of the left main coronary was present. A description of the coronary anomaly found and a discussion of its meaning and significance are presented.

Radionuclide assessment of right ventricular contractile reserve after acute myocardial infarction.

Conflicting data have been reported about the implications of a decreased right ventricular (RV) contractile reserve (i.e., a < 5% stress-induced increase in ejection fraction [EF]).

Radionuclide studies in patients with stress-induced ST-segment elevation after acute myocardial infarction.

The meaning of a stress-induced ST-segment elevation (delta ST) after acute myocardial infarction is still controversial. Some studies show it is related to asynergy, and other studies show it is related to ischemia. However, no study has compared the delta ST with both stress-induced ischemia and stress-induced asynergy in the same group of patients.

Short-term effects of celiprolol on blood pressure and left ventricular performance in hypertensive cardiomyopathy.

Celiprolol (C) is a new selective beta 1-blocker with partial beta 2-agonistic activity. The purpose of this study was to explore its antihypertensive efficacy and its short-term effect on systemic vascular resistances (SVR), cardiac output (CO), left ventricular ejection fraction (LVEF), and left ventricular diastolic performance (LVDP). The Doppler technique was used.

Bisoprolol in the treatment of chronic stable angina pectoris.

The purpose of the study was to assess the efficacy and tolerance of the beta1-selective beta-adrenoceptor-blocking agent bisoprolol in patients with chronic stable angina pectoris. A total of 236 outpatients (158 male and 78 female) over 21 years of age (mean age of 57 years and 60 years for men and women, respectively) were included in an open trial of 4 weeks duration. A total of 32.

[Incidence of innocuous thoracic murmurs in a sample of 12,009 students].

We have studied a total of 12,009 school children (age range 6 to 14 years) in order to determine the incidence of thoracic innocent murmurs. 6,816 were male and 5,193 female. A initial clinical evaluation was carried out in the school and the second examination was performed in our hospital.