منابع مشابه
Hyperkalemia-induced complete heart block
Background: Potassium, as an extracellular ion, plays an important role in the electrophysiologic function of the myocardium and any change in extracellular concentration of this ion might have a marked impression upon myocyte electrophysiologic gain. High serum potassium levels are thought to impair pulse conduction in Purkinje fibers and ventricles more than that in the Atrio...
متن کاملPrevalence of Heart Failure in the Cases of Beta-thalassemia Major; Two Years Follow-Up
Inroduction: Heart failure (HF) is an important cause of morbidity and mortality in the cases of Beta-thalassemia major. The purpose of this study was to estimate HF prevalence in these patients and to assess the survivability of those who were treated with intensive chelating therapy. Design and methods: This cross sectional study included 72 beta-thalassemia major cases, the mean age at t...
متن کاملElectrophysiological and histological correlations in two cases of complete heart block.
Electrophysiological and histological correlation was documented in 2 cases of complete heart block (CHB). Case 1 (77 yrs. female): CHB continued for 1.5 years with normal QRS in axis and duration. The His bundle electrogram (HBE) showed A-H block with normal H-V interval (40 msec). Ten months later she died of bronchopneumonia and paralytic ileus. Histological study of the conduction system re...
متن کاملComplete congenital heart block. Report of 35 cases.
Congenital complete atrioventricular block is uncommon, and the outlook is usually regarded as favourable. Thirty-five patients with congenital heart block are presented. There was no obvious sex difference and their ages ranged from 12 days to 85 years, though most were under the age of 20 years when first seen. Accompanying heart disease was noted in six, but presentation with symptoms in ear...
متن کاملProgressive familial heart block--two types.
Two types of heart block which occur extensively in families in the Republic of South Africa are reported. A type I heart block tends to have the pattern of a right bundle-branch block and/or left anterior hemiblock occurring individually or together, and manifesting clinically when complete heart block supervenes, either with syncopal episodes, Stokes-Adams seizures or sudden death. The condit...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1915
ISSN: 0035-9157
DOI: 10.1177/003591571500801805