Major abnormalities of the electrocardiogram and cardiovascular risk in a medium and high-risk Mediterranean population.

Introduction: Major electrocardiogram abnormalities (MECG) are common in middle-aged and older individuals and could be an important factor in predicting cardiovascular events.

Objective: To analyse the association between MECG (Minnesota classification) and CVE independently of classic cardiovascular risk factors (CVRF), and to assess whether they improve the prediction according to the Spanish Coronary Event Risk Function (FRESCO).

Method: 1.

Conduction Disorders in the Setting of Acute STEMI.

ST-elevation myocardial (STEMI) is frequently associated with conduction disorders. Regional myocardial ischemia or injury may affect the cardiac conduction system at various locations, and neural reflexes or changes in the balance of the autonomous nervous system may be involved. Sinoatrial and atrioventricular blocks are more frequent in inferior than anterior STEMI, while new left anterior fascicular block and right bundle branch block indicate proximal occlusion of the left anterior descending coronary artery.

Automated discrimination of proximal right coronary artery occlusion from middle-to-distal right coronary artery occlusion and left circumflex occlusion in ST-elevation myocardial infarction.

Background: Classifying the location of an occlusion in the culprit artery during ST-elevation myocardial infarction (STEMI) is important for risk stratification to optimize treatment. We developed a new logistic regression (LR) algorithm for 3-group classification of occlusion location as proximal right coronary artery (RCA), middle-to-distal RCA or left circumflex (LCx) coronary artery with inferior myocardial infarction. We compared the performance of the new LR algorithm with the recently introduced decision tree classifier of Fiol et al (Ann Noninvasive Electrocardiol.

Automated discrimination of proximal right coronary artery occlusion from middle-to-distal right coronary artery occlusion and left circumflex occlusion in ST-elevation myocardial infarction.

Background: Classifying the location of an occlusion in the culprit artery during ST-elevation myocardial infarction (STEMI) is important for risk stratification to optimize treatment. We developed a new logistic regression (LR) algorithm for 3-group classification of occlusion location as proximal right coronary artery (RCA), middle-to-distal RCA or left circumflex (LCx) coronary artery with inferior myocardial infarction. We compared the performance of the new LR algorithm with the recently introduced decision tree classifier of Fiol et al (Ann Noninvasive Electrocardiol.

Acute myocarditis and left ventricular "hypertrophy".

Echocardiographic abnormalities of myocarditis are polymorphous and nonspecific. The presence of increased ventricular wall thickness, typically transient, is an infrequent finding in myocarditis that can correspond to an improvement in the clinical status of the patient and the ejection fraction. We report the case of a patient with acute myocarditis and the echocardiographic abnormalities observed during the course of his myocarditis: transient left ventricular "hypertrophy" associated with improvement of the left ventricular function.

[The differential characteristics of early ventricular arrhythmias following a myocardial infarct in patients with and without ventricular fibrillation].

Objective: To evaluate the characteristics of early ventricular arrhythmias in acute myocardial infarction and their predictive value of ventricular fibrillation.

Patients And Methods: We retrospectively compared 85 patients who presented ventricular fibrillation with a control group of 187 consecutively acute myocardial infarction patients recorded within the first 12 hours after onset of acute myocardial infarction symptoms. Patients in Killip class III-IV were excluded.

[Acute myocardial infarction of the right ventricle: hemodynamic and electrocardiographic correlation (author's transl)].

The electrocardiogram as a diagnostic aid in acute myocardial infarction of the right ventricle (AMI-RV) was studied prospectively in a group of 66 patients in our coronary unit. Diagnosis was AMI in all cases, divided into 29 (44%) with posterior-descending and 35 (53%) with anterior location. Electrocardiography was practiced with standard and special modes: CRnR, CR and VR.

[Pulmonary volume and cardiopulmonary function in acute myocardial infarction (author's transl)].

In order to evaluate alterations in lung mechanisms detected in patients with acute myocardial infarction (MI), changes in arterial oxygenation and pulmonary volume in relation to the hemodynamic status were measured in 19 patients with acute MI. Pulmonary volume was determined with spirometry and helium dilution closed technic at 24 and 72 hours and two months after acute MI. The first finding was decreased arterial PO2: 328 +/- 29 mm/Hg (mean +/- SE) which had significantly risen by the third day: 423 +/- 20 mm/Hg (p less than 0.

[Correlation between the Morris' index and pulmonary capillary pressure in patients with acute myocardial infarction].

The authors study the usefulness of the measurement of the negative area of P in V1 (Morris' index) in patients with acute myocardial infarction. The study was carried out prospectively in 70 patients, 31 of them having a Swan-Ganz catheter inserted permitting simultaneous hemodynamic and electrocardiographic measurements. No overall correlation was found between pulmonary capillary pressure (PCP) and Morris' index (Mlx), but a correlation existed in the subgroup of patients that showed evident variations of Mlx values during the study.

[Usefulness of creatine phosphokinase isoenzyme, CK-MB, in the diagnosis of myocardial necrosis (author's transl)].

With the objective of evaluating the clinical usefulness of a new immunologic method (Merck-1-Test CK-MB), in the determination of the CK-MB activity, 48 patients admitted to the Coronary Unit for angina pectoris were studied. Samples of blood were gathered upon admission and every 4 hours for 48-72 hours, determining in each one of them the total CPK, SGOT, LDH, and CK-MB; electrocardiograms (ECG) were taken and all possible causes for the increase in the enzymatic activity were recorded. Results were analyzed in order to study the following aspects: in the patients in which an acute myocardial infarction was diagnosed the CK-MB activity was studied, also the relation of CK-MB to the remaining parameters, each parameter's sensitivity and specificity and the relationship of the CK-MB to the prognosis of the patients.