词汇 | bradycardia |
释义 | bradycardia noun[ U or C ] medical specializeduk /ˌbræd.iˈkɑː.di.ə/ us /ˌbreɪ.dɪˈkɑːr.di.ə/ a heart rate at rest that is slower than normal, with fewer than 60 beats per minute: Bradycardia is a potentially dangerous condition because your brain may not be receiving enough blood. She had developed bradycardia, a dangerously low heart rate. After the procedure, the patient developed bradycardia and became asystolic. Pacemakers might alleviate some rhythm disturbances such as bradycardias. Patients with bradycardia often experience sudden loss of consciousness without warning. Disorders & diseases of the heart & blood acidosis acquired agammaglobulinemia adult-onset diabetes afib agammaglobulinemia anaemic apoplexy coarctation of the aorta congenital erythropoietic porphyria congestive heart failure coronary heart disease coronary thrombosis decompression sickness furred MGUS mini-stroke mitral monoclonal gammopathy of unknown significance monocyte disorder toxaemia Comparetachycardia Examples of bradycardiabradycardia However, from 1985-94, we evaluated 8 pediatric pts with apparent breath-holding symptoms associated with life-threatening bradycardia spells. The approach to the fetus with sustained bradycardia includes fetal assessment with systematic ultrasound and echocardiographic studies to establish possible aetiologies. It may also result in significant bradycardia not seen when ice water alone is applied to die face. The incidence of bradycardia and syncope was not significantly different from the placebo group. Major hypotension is less common in labour, though it occurs occasionally after a bolus dose and may be a cause of fetal bradycardia. Accordingly, no different incidence of arrhythmias such as sick sinus syndrome, sinus bradycardia, junctional rhythm, or a wandering pacemaker should be expected. If abnormal exercise capacity is due to bradycardia, insertion of a pacemaker is indicated. This article highlights arrhythmic fetal bradycardia rather than bradycardia caused by perinatal distress. Complications included blood transfusion in three, balloon rupture in one and transient bradycardia in one. He was diagnosed with nodal bradycardia with polymorphic ventricular extra-systoles during the last six years. Isolated noncompaction of the left g ventricular myocardium with fetal sustained bradycardia due to sick sinus syndrome. In most of the children, there was a transient period of apnea and bradycardia during inflation of the balloon, with spontaneous recovery. This patient developed intermittent sinus bradycardia after atrial redirection surgery and, more recently, continuous sinus bradycardia and sinus arrest with junctional escape. In those with significant bradycardia on tilting who have failed with medical therapy, insertion of a permanent pacemaker may be useful. The bradycardia component of the reflex is mediated via vagal control of sinoatrial and atrioventricular conduction. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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