The Cardiovascular Atlas

Search

8x

$Figure 1. Aberrant conduction. The figure shows a supraventriclar extrasystole (an extra atrial impulse, discharged by an ectopic focus outside of the sinoatrial node). The supraventricular extrasystole arrives into the ventricles while the right bundle branch is still refractory, which is why it blocks the impulse. The resulting QRS-complex has a right bundle branch block pattern.$

Aberrant ventricular conduction

Abnormal Global Longitudinal Strain (GLS), left ventricle, left atrium, abnormal tissue doppler imaging (TDI)

Action potentials

ECGs showing acute STEMI in two patients with severe chest pain. STEMI = ST elevation Myocardial Infarction.

Acute STEMI (ST elevation myocardial infarction)

aliasing-phenomenon-speed-ultrasound-echocardiography

Alternative lead systems

Anatomy of the mitral valve

Anterior STEMI with late presentation

Antiplatelet therapy in acute coronary syndromes (NSTEMI, STEMI, UA)

antiplatelet-drugs-aspirin-clopidogrel-prasugrel-ticagrelor-cangrelor-abciximab-eptifibatide-tiirofiban-dipyramidole-1

Antithrombotic Regimens in Patients with ACS and an Indication for Oral Anticoagulation

Antithrombotic Regimens in Patients with ACS without an Indication for Oral Anticoagulation

Aortic regurgitation (AR), severe, infective endocarditis

Aortic stenosis (AS) and mitral stenosis (MS) secondary to radiation therapy

aortic-regurgitation-criteria-echocardiography-valve-jet-diameter

aortic-regurgitation-echocardiography-criteria-vena-contracta-measurement

aortic-regurgitation-echocardiography-doppler-holodiastolic-flow-reversal-pulsed-continuous

aortic-regurgitation-severity-criteria-pressure-half-time-doppler-echocardiography

aortic-stenosis-as-guidelines-criteria-echocardiography-doming

CVD Atlas

Overview of the cardiac conduction system

Dr Araz Rawshani, MD, PhD

Associate professor Department of Cardiology, Sahlgrenska University Hospital, Sweden Institute of Medicine, Department of Molecular and Clinical Medicine, Gothenburg, Sweden

More by Dr Araz Rawshani, MD, PhD

Figure 3. Overview of the chambers, conduction system and the pathway the electrical impulse travels during each cardiac cycle. The right hand side of the figure presents the pacemaker hierarchy of the heart. All structures listed are capable of spontaneous depolarization (automaticity), and thus acting as a pacemaker. The rate of spontaneous depolarization is highest in the sinoatrial node, which is why it acts as the heart’s pacemaker under normal circumstances.