22 träffar

ArticleECG
The PR Interval & PR segment

…pathway). This is associated with a delta wave. For further details on the PR interval and the PR segment, refer to The normal electrocardiogram (ECG).

ArticleProcedurer
Dix–Hallpike test and Epley manoeuvre

…The treatment is a repositioning manoeuvre. Indications Brief attacks of vertigo, seconds to a minute or so, that are provoked by a change of position…

ArticleCPR
Sudden cardiac arrest: Case 1

…are supraventricular beats during sinus rhythm. A brief run of polymorphic ventricular tachycardia (VT) occurs after the 4th beat. The VT terminates spontaneously after a…

ArticleEchocardiography
Technical aspects of the ultrasound image

…waves are analyzed by the machine during the brief pauses between the pulses. Thus, the machine analyzes ("listens to") reflected sound waves immediately after it…

ArticleProcedurer
Transcutaneous and transvenous pacing

…brief: continuing pacing dependence, inadequate or unachievable transcutaneous capture, or when the patient cannot tolerate the pain of transcutaneous pacing. It is a bridge to…

ArticleEchocardiography
Hemodynamic principles and calculations

…echocardiography and Doppler studies are sufficient to study velocities, volumes, and pressure conditions in the heart. These techniques allow for the calculation of all clinically…