PMID: 2103245Jul 1, 1990Paper

The electrocardiographic changes in constrictive pericarditis before and after pericardiectomy. The role of the myocardium in the genesis of preoperative electrocardiographic changes

Anales de medicina interna : organo oficial de la Sociedad Española de Medicina Interna
T VicenteF Sánchez

Abstract

We studied 19 patients diagnosed of chronic pericarditis and treated surgically with pericardiectomy, to evaluate the role of the pericardium and myocardium on the preoperative electrocardiogram. Before surgery, there was atrial fibrillation in 17 cases, the P axis was between 0 and +70 and pseudomitral morphology was found in 10 of the 12 cases with normal sinus rhythm. The mean voltage in the QRS complex was (13.8 mm), and the R wave in V5 8.6 mm. The T wave was negative in 17 patients. After surgery there was only a case of atrial fibrillation that converted to normal sinus rhythm; the P wave axis moved to the right between +30 and +150 (p less than 0.002), the pseudomitral morphology of the P changed to normal in 3 cases, the voltage of the QRS increased to 16.7 mm (p less than 0.003) and that of the R wave in V5 to 9.4 mm (p less than 0.001). The T wave became positive in only 3 cases. Because of the persistence of some alterations, we concluded that both components, pericardium and myocardium are important in the changes of the electrocardiogram of constrictive pericarditis.

Related Concepts

Related Feeds

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Atrial Filbrillation

Atrial fibrillation refers to the abnormal heart rhythm characterized by rapid and irregular beating of the atria. Here is the latest research.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.