Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology · 1991
[Arrhythmic profiles evaluated by Holter's technique in sick sinus syndrome].
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Lousada N, Catarino C, Antunes E, Serra J, Patrício L, Valério L, Gracias R, Rato J A
Аннотация
OBJECTIVES: The aim of this study was to evaluate in a group of patients with sick sinus syndrome: 1) Characteristics of arrhythmia on Holter monitoring. 2) Value of Holter monitoring to select patients for pacemaker implantation.
SETTING: Department of Cardiology in a Central Hospital.
METHODS: In 40 patients (27 men and 13 women, aged 37 to 83 years) Holter monitoring during a 24-hour period was performed. According to the arrhythmia profiles four groups of patients were considered: group A--with severe sinus bradycardia; group B--with sinus bradycardia associated to sinoatrial exit block or to sinus pauses; group C--characterized by the bradycardia-tachycardia syndrome and group D--defined by the finding of atrial fibrillation with a slow ventricular response. Symptoms and the presence of structural heart disease were evaluated.
RESULTS: In this patients population, 24 patients had coronary artery disease and/or hypertensive heart disease. A severe sinus bradycardia was found in 14 patients (group A) and in other 11 patients it was accompanied by sinoatrial exist block of sinus pauses (group B); 12 patients had the bradycardia-tachycardia syndrome (group C) and periods of atrial fibrillation with a slow ventricular response were found in 3 other patients (Group D). Nonspecific clinical pattern was observed in this population.
CONCLUSIONS: Holter monitoring was important to the diagnosis of sick sinus syndrome and for posterior definitive pacemaker implantation. Coronary artery disease and/or hypertensive heart disease were the main pathologies found in this study, being the severe sinus bradycardia and the bradycardia-tachycardia syndrome the principal manifestations of the sick sinus syndrome.
SETTING: Department of Cardiology in a Central Hospital.
METHODS: In 40 patients (27 men and 13 women, aged 37 to 83 years) Holter monitoring during a 24-hour period was performed. According to the arrhythmia profiles four groups of patients were considered: group A--with severe sinus bradycardia; group B--with sinus bradycardia associated to sinoatrial exit block or to sinus pauses; group C--characterized by the bradycardia-tachycardia syndrome and group D--defined by the finding of atrial fibrillation with a slow ventricular response. Symptoms and the presence of structural heart disease were evaluated.
RESULTS: In this patients population, 24 patients had coronary artery disease and/or hypertensive heart disease. A severe sinus bradycardia was found in 14 patients (group A) and in other 11 patients it was accompanied by sinoatrial exist block of sinus pauses (group B); 12 patients had the bradycardia-tachycardia syndrome (group C) and periods of atrial fibrillation with a slow ventricular response were found in 3 other patients (Group D). Nonspecific clinical pattern was observed in this population.
CONCLUSIONS: Holter monitoring was important to the diagnosis of sick sinus syndrome and for posterior definitive pacemaker implantation. Coronary artery disease and/or hypertensive heart disease were the main pathologies found in this study, being the severe sinus bradycardia and the bradycardia-tachycardia syndrome the principal manifestations of the sick sinus syndrome.