Introduction to Arrhythmias: Difference between revisions

Jump to navigation Jump to search
m
no edit summary
mNo edit summary
mNo edit summary
Line 21: Line 21:
**are there extra beats? -> [[Ectopic Beats]]
**are there extra beats? -> [[Ectopic Beats]]
* What is the '''[[Conduction|QRS width]]'''?
* What is the '''[[Conduction|QRS width]]'''?
*If the QRS < 120ms (i.e. a narrow complex), then it is either a [[Sinus node rhythms and arrhythmias|sinus arrhythmia]], [[Supraventricular Rhythms|supraventricular rhythm]] or a [[Junctional Tachycardias|junctional tachycardia]]. In tachycardias, this [[Media:narrow_tachycardia_flow.png|'''flowchart''']] will lead to the right diagnosis.<cite>ESCnarrowQRS</cite>
**If the QRS < 120ms (i.e. a narrow complex), then it is either a [[Sinus node rhythms and arrhythmias|sinus arrhythmia]], [[Supraventricular Rhythms|supraventricular rhythm]] or a [[Junctional Tachycardias|junctional tachycardia]]. In tachycardias, this [[Media:narrow_tachycardia_flow.png|'''flowchart''']] will lead to the right diagnosis.<cite>ESCnarrowQRS</cite>
*If the QRS > 120ms it is either a [[Ventricular Arrhythmias|ventricular tachycardia]] or a [[Supraventricular Rhythms|supraventricular rhythm]] with additional [[Intraventricular Conduction|bundle branch block]]. This is a challenging difficulty in arrhythmia diagnosis, therefore a [[media:wideQRS_tachycardia_flow.png|'''flowchart''']] might help, which incoporates the Brugada criteria for VT.<cite>Brugada</cite> Another method to discriminate VT from SVT has been proposed by Vereckei et al.<cite>vereckei</cite> In the editorial on that paper an excellent review is given on the subject by Dendi and Josephson.<cite>dendi</cite>
**If the QRS > 120ms it is either a [[Ventricular Arrhythmias|ventricular tachycardia]] or a [[Supraventricular Rhythms|supraventricular rhythm]] with additional [[Intraventricular Conduction|bundle branch block]]. This is a challenging difficulty in arrhythmia diagnosis, therefore a [[media:wideQRS_tachycardia_flow.png|'''flowchart''']] might help, which incoporates the Brugada criteria for VT.<cite>Brugada</cite> Another method to discriminate VT from SVT has been proposed by Vereckei et al.<cite>vereckei</cite> In the editorial on that paper an excellent review is given on the subject by Dendi and Josephson.<cite>dendi</cite>
* What is the clinical setting?
* What is the '''clinical setting'''?
** A wide complex tachycardia in a hemodynamically instable 70 year old man with previous myocardial infarction should be concidered a [[ventricular tachycardia]] until proven otherwise
** A wide complex tachycardia in a hemodynamically instable 70 year old man with previous myocardial infarction should be concidered a [[ventricular tachycardia]] until proven otherwise
** A wide complex tachycardia in a 24 year old women with recurrent spells of tachycardia the respond to vagal manouevres is most likely an [[AVNRT]] with aberrant conduction.
** A wide complex tachycardia in a 24 year old women with recurrent spells of tachycardia the respond to vagal manouevres is most likely an [[AVNRT]] with aberrant conduction.

Navigation menu