Volume 5, Narrow and Wide Complex Tachyarrhythmias and Aberration--Part A: Core Cases presents 61 case studies to allow students to sharpen their skills in reading ECGs and diagnosing both narrow complex tachyarrhythmias (originating in the sinus node, atrium, or AV node) and wide complex tachyarrhythmias (ventricular, supraventricular with aberration, and pacemaker associated). There are also ECGs that present etiologies and mechanism for aberration. Each case offers one or more ECGs that illustrate various causes of aberration, highlighting features that help to establish its etiology.

60 additional cases for further study are available in a separate digital edition, Volume 5B: Practice Cases.