Sinus Node Recovery Time and Abnormal Postpacing Phase in the Aged Patients with Sick Sinus Syndrome
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چکیده
منابع مشابه
Influences of autonomic changes on the sinus node recovery time in patients with sick sinus syndrome.
To assess the relative contribution of sympathetic and vagal influences on diurnal variation of sinus node recovery time (SNRT) in sick sinus syndrome (SSS), the diurnal changes of SNRT and the effects of propranolol and subsequent atropine on SNRT were examined in 39 patients with SSS. SNRT was measured before and after intravenous propranolol (0.1 mg/kg), and after subsequent intravenous atro...
متن کاملPatients With Sick Sinus Syndrome
Background. The goal of the report was to study the long-term incidence and the independent predictors for chronic atrial fibrillation and stroke in 507 paced patients with sick sinus syndrome, adjusting for differences in baseline clinical variables with multivariate analysis. Methods and Results. From 1980 to 1989, we implanted 376 dual-chamber, 19 atrial, and 112 ventricular pacemakers to tr...
متن کاملAssessment of sinus node function in patients with the sick sinus syndrome.
SUMMARY Thirty-one patients with symptomatic sinus node dysfunction were evaluated with electrocardiograms, Holter monitor recordings, exercise, isoproterenol infusions, atropine administration, Valsalva maneuvers, carotid sinus massage, and overdrive pacing. Four basic clinical subsets were recognized: (1) carotid sinus hypersensitivity (2) bradyeardia-tachyeardia syndrome, (3) episodic sinus ...
متن کاملSinus node recovery time in the elderly.
Measurement of the sinus node recovery time has been proposed as a diagnostic tool for recognition of the sick sinus syndrome. The latter is most frequently encountered in elderly patients with hypertension, coronary heart disease, and atherosclerosis. In order to provide normal values for the sinus node recovery time in this particular population group, atrial pacing studies were carried out i...
متن کاملThe sick sinus syndrome.
1. a. SSS b. SA block c. SA arrest Sick sinus syndrome is a disorder characterized by a dysfunctional sinus node. It is often idiopathic and a result of degenerative fibrosis of nodal tissue. Certain disorders such as amyloidosis, connective tissue disease, Chagas disease, and hemochromatosis are examples of intrinsic causes. Hypertensive heart disease and cardiomyopathies account for a smaller...
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ژورنال
عنوان ژورنال: Japanese Heart Journal
سال: 1976
ISSN: 0021-4868,1348-673X
DOI: 10.1536/ihj.17.290