Conduction Defects
Chapters in Conduction Defects.
- Overview of atrioventricular (AV) blocksAtrioventricular block (AV block): definition, causes, diagnosis management This article covers the fundamental principles of atrioventricular (AV) blocks, which are classified…
- First-degree AV block (AV block I, AV block 1)First-degree AV block: ECG criteria, clinical characteristics management This chapter discusses first-degree atrioventricular (AV) block, also referred to as 1st-degree AV block,…
- Second-degree AV block: Mobitz type 1 (Wenckebach) & Mobitz type 2 blockSecond-degree AV block: ECG criteria, clinical characteristics management In this chapter, the focus will be on second-degree atrioventricular (AV) block. Before proceeding, it is…
- Third-degree AV block (3rd degree AV block, AV block 3, AV block III)Third-degree (complete) AV block: ECG criteria, clinical characteristics and management This chapter discusses third-degree AV block, which is synonymous with AV dissociation,…
- Management and treatment of AV block (atrioventricular blocks)Management and treatment of AV blocks (AV-block 1, 2 3) Evaluation of patients with suspected AV blocks requires a thorough medical history (with emphasis on causes of AV blocks;…
- Intraventricular conduction delay: bundle branch blocks & fascicular blocksIntraventricular conduction delay (defect): constellations of bundle branch blocks and fascicular blocks (hemiblocks) This chapter discusses intraventricular conduction delays…
- Right bundle branch block (RBBB): ECG, criteria, definitions, causes & treatmentRight bundle branch block (RBBB) Right bundle branch block (RBBB) is due to an anatomical or functional dysfunction in the right bundle branch, such that the electrical impulse is…
- Left bundle branch block (LBBB): ECG criteria, causes, managementLeft bundle branch block (LBBB) Left bundle branch block (LBBB) results from anatomical or functional impairment of the left bundle branch (LBB), leading to a blockage of…
- Left bundle branch block (LBBB) in acute myocardial infarction: the Sgarbossa criteriaLeft bundle branch block (LBBB) in acute myocardial infarction (AMI): clinical implications Sgarbossa criteria Contrary to right bundle branch block, left bundle branch block is…
- Fascicular block (hemiblock): Left anterior & left posterior fascicular blockFascicular block (hemiblock): left anterior fascicular block left posterior fascicular block Fascicular blocks were previously referred to as hemiblocks, but the latter term has…
- Nonspecific intraventricular conduction delay (defect)Nonspecific intraventricular conduction delay A nonspecific intraventricular conduction delay exists if the ECG displays a widened QRS appearance that is neither a left bundle…
NSTEMI (Non-ST Elevation Myocardial Infarction) & Unstable Angina: Diagnosis, Criteria, ECG, Management
Non-ST Elevation Acute Coronary Syndromes (NSTE-ACS): Non-ST Elevation Myocardial Infarction (NSTEMI) and Unstable Angina (UA) The focus of this chapter is the diagnosis and…
Overview of atrioventricular (AV) blocks
Atrioventricular block (AV block): definition, causes, diagnosis management This article covers the fundamental principles of atrioventricular (AV) blocks, which are classified…