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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Möbitz 2 Block
Report: Sinus rhythm First degree AV block PR 0.22â Second degree AV block, Möbitz 2 Left posterior hemiblock Right bundle branch block Comment: The fixity of the PR interval rules out Möbitz 1 (Wenckebach) mechanism for the AV block. Almost inv
Sinus Arrest: Asystole
Report: Sinus rhythm 60 â 70/min First degree AV block (PR 0.24â) Second degree AV block (unspecified - movement artefact over the last conducted P wave) Sinus arrest (middle) Sinus tachycardia 104/min (bottom) Third degree AV block Junctional e
Isoprenaline Tachycardia
Report: Sinus tachycardia 108/min 2:1 AV block (top) Sinus tachycardia 150/min 2:1 & 3:2 Wenckebach AV block (middle) Sinus tachycardia 165/min (bottom) First degree AV block 1:1 conduction Comment: Isoprenaline helped the bradycardia, but at a pri
Sinus Arrhythmia or SA Exit Block?
Report: Sinus rhythm Sino-atrial exit block Comment: All the groups display the characteristic acceleration before the pause. This is the hallmark of Wenckebach (Möbitz 1) sino-atrial exit block, only slightly modified by true (respiratory) sinus arrhy
Digoxin-Induced Wenckebach
Report: Sinus arrhythmia Second degree AV block, Möbitz 1 Comment:The respiratory effect on the QRS size is seen throughout. It may be tempting to assume the first and largest QRS in each sequence is a junctional escape beat, with non-phasic aberranc
The Bix Rule
Report: Sinus tachycardia 104/min Second degree 2:1 AV block Comment: The rule states that if a P wave (or a Pâ wave) is half-way between the QRS complexes, it probably has a companion P wave hidden within the QRS complex47. This is demonstrated below
Vagotonia: Advanced Second Degree AV Block
Report: Sinus rhythm Advanced second degree AV block[!xe "Second degree AV block" \t "See AV block, second degree"!] Period of asystole Ventriculophasic sinus arrhythmia Comment: Vagally-mediated bradyarrhythmias may, at times, be fatal. Vast majori
Echo (Reentry) Beats of Junctional Origin
Report: Top strip: Sinus bradycardia, progressive First degree AV block PR 0.24â Junctional escape beats Retrograde first degree AV block (RP 0.28â) Reentry (echo) beats of junctional origin Antegrade PR interval now 0.20â Incomplete RBBB B
Skipped P Waves in Wenckebach Conduction
Report: Sinus tachycardia 120-128/min First degree AV block Second degree AV block, Möbitz 1 Periods of 3:2 conduction, with bigeminy Right bundle branch block Pacemaker rhythm 72/min Fusion and pseudofusion beats Comment: The key to correct inter
AV Block in Inferior Infarction
Report: Top: Sinus rhythm VEB Third degree AV block Junctional escape rhythm 42/min Second strip: Sinus tachycardia 104/min Second degree AV block, 2:1 conduction First degree AV block in conducted beats (PR 0.44â) Third strip: Sinus tachycar