Pacemaker 'heart sound'.
نویسندگان
چکیده
منابع مشابه
Sound caused by diaphragmatic contraction resulting from transvenous cardiac pacemaker.
A presystolic "clickn beginning 0.1 second before the first heart sound occurred in a patient with a permanent pervenous cardiac pacemaker. Simultaneous fluoroscopy, phonocardiography and electrocardiography demonstrated that the "click" was generated by contraction of the left hemidiaphragm which was stimulated by the electrical discharge from the tip of the electrode catheter located in a tri...
متن کاملPacemaker failure in complete heart block.
• The role of the electrical pacemaker with myocardial electrodes in the treatment of atrioventficular conduction blocks is an important one. Various observers, however, have reported a progressive increase in power needed to stimulate the heart and eventual failure of stimulation. The reason for this stimulation failure has been reported as due to increased electrical resistance from scar form...
متن کاملComputer simulation of heart-pacemaker interaction.
The electrical interaction between the heart and an artificial pacemaker is often complex. Because of the sophistication and variability of dual-chamber device algorithms, even experienced cardiologists have difficulty interpreting paced electrocardiograms (ECGs). To study heart-pacemaker interaction (HPI), a computer model of the cardiac conduction system has been developed which includes the ...
متن کاملPacemaker lead-straight through the heart.
1 of 2 DESCRIPTION A 45-year-old female patient, was admitted with recurrent syncope of 1 month duration. An emergency temporary transvenous right ventricular pacing electrode was placed for complete heart block. The patient developed chest pain and giddiness the following day and electrocardiogram revealed failure to capture and undersensing, with right bundle branch block morphology ( fi gure...
متن کاملRight heart perforation by pacemaker leads
Cardiac pacing is a proven therapy of cardiac conduction disturbances and an effective treatment modality in many cardiac arrhythmias. Implantable cardiac defibrillators (ICDs) are particularly beneficial for selected groups of patients with a history of severe ventricular arrhythmias or at a high risk of sudden cardiac death. Despite their potential lifesaving properties, both pacemakers and I...
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ژورنال
عنوان ژورنال: Heart
سال: 1967
ISSN: 1355-6037
DOI: 10.1136/hrt.29.4.608