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Arrhythmia Characteristics

Jenis dan Karakteristik Aritmia



Type of Arrhythmia Rate (beats/min) Rhythm Contour Rate (beats/min) Rhythm Contour
Sinus rhythm 60-100 Regular[†] Normal 60-100 Regular Normal
Sinus bradycardia <60 Regular Normal <60 Regular Normal
Sinus tachycardia 100-180 Regular May be peaked 100-180 Regular Normal
AV nodal reentry 150-250 Very regular except at onset and termination Retrograde; difficult to see; lost in QRS complex 150-250 Very regular except at onset and termination Normal
Atrial flutter 250-350 Regular Sawtooth 75-175 Generally regular in absence of drugs or disease Normal
Atrial fibrillation 400-600 Grossly irregular Baseline undulation, no P waves 100-160 Grossly irregular Normal
Atrial tachycardia with block 150-250 Regular; may be irregular Abnormal 75-200 Generally regular in absence of drugs or disease Normal
AV junctional rhythm 40-100[§] Regular Normal 40-60 Fairly regular Normal
Reciprocating tachycardias using an accessory (WPW) pathway 150-250 Very regular except at onset and termination Retrograde; difficult to see; monitor the QRS complex 150-250 Very regular except at onset and termination Normal
Nonparoxysmal AV junctional tachycardia 60-100[¶] Regular Normal 70-130 Fairly regular Normal
Ventricular tachycardia 60-100[¶] Regular Normal 110-250 Fairly regular; may be irregular Abnormal, > 0.12 sec
Accelerated idioventricular rhythm 60-100[¶] Regular Normal 50-110 Fairly regular; may be irregular Abnormal, > 0.12 sec
Ventricular flutter 60-100[¶] Regular Normal; difficult to see 150-300 Regular Sine wave
Ventricular fibrillation 60-100[¶] Regular Normal; difficult to see 400-600 Grossly irregular Baseline undulations; no QRS complexes
First-degree AV block 60-100[**] Regular Normal 60-100 Regular Normal
Type I second-degree AV block 60-100[**] Regular Normal 30-100 Irregular[‡‡] Normal
Type II second-degree AV block 60-100[**] Regular Normal 30-100 Irregular[‡‡] Abnormal, > 0.12 sec
Complete AV block 60-100[¶] Regular Normal <40 Fairly regular Abnormal, 0.12 sec
Right bundle branch block 60-100 Regular Normal 60-100 Regular Abnormal, 0.12 sec
Left bundle branch block 60-100 Regular Normal 60-100 Regular Abnormal, > 0.12 sec



Notes:

† P waves initiated by sinus node discharge may not be precisely regular because of sinus arrhythmia.
‡ Often, carotid sinus massage fails to slow a sinus tachycardia.
§ Any independent atrial arrhythmia may exit or the atria may be captured retrogradely.
¶ Constant if the atria are captured retrogradely.
** Atrial rhythm and rate may vary, depending on whether sinus bradycardia, sinus tachycardia, or another abnormality is the atrial mechanism.
†† Regular or constant if block is unchanging.


Referensi:
Braunwald's Heart Disease 8E (Saunders) 2007
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