VENTRICULAR COMPLEXES IN HEART BLOCK
نویسندگان
چکیده
منابع مشابه
Paroxysmal Heart Block and Ventricular Standstill.
In auriculo-ventricular block the degree of impairment of conductivity is often found to be inconstant. Even at a time when the rhythm appears clinically to be normal, however, a cardiogram will usually show prolongation of the P-R interval. Only rarely is the conduction normal between the attacks, and the term " paroxysmal heart block " may then appropriately be applied. Reports of 18 such cas...
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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 کاملHeart block after repair of ventricular septal defect in children.
T HE CLOSE anatomic relationship of the conduction system of the heart to most ventricular septal defects'-5 makes the occurrence of complete heart block a potential risk in the repair of these lesions. In our experience , when complete heart block has developed , it has often proved to be a serious complication. Although reversion to sinus rhythm occurs in the early postoperative period in man...
متن کاملComplete auriculo-ventricular heart block in the foetus and newborn.
Case Reprts Cae 1. R.T. was born on July 29, 1947, of healthy parents. On July 18, 1947, antenatalexaminationshowed that the foetal heart was slow andiregular. Amurmurwas audible and it was thought to be a ' funic souffle.' The irregular pulse was interpreted as evidence of foetal dises, and on July 26, 1947, the membranes werepunctured to induce labour. The child was born three days later afte...
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Molar sodium lactate has been described as a safe and effective agent in the treatment of bradycardia accompanying complete heart block. However, in 12 patients with heart block, hypertonic lactate infusions produced ventricular tachycardia in 6 and an increased idioventricular rate in only 4. Isopropylnorepinephrine was more effective and without such hazard. The effects of alkalosis from mola...
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ژورنال
عنوان ژورنال: Heart
سال: 1948
ISSN: 1355-6037
DOI: 10.1136/hrt.10.3.177