Atrioventricular Block: 2nd Degree, Mobitz II
Figure 1: ECG Strip
A second degree, Mobitz II atrioventricular (AV) block indicates "intermittent non-conducted P waves ('dropped' QRS complexes) without progressive prolongation of the PR interval."
Table 1: ECG Characteristics
- 2nd degree, Mobitz II heart block is commonly associated with haemodynamic compromise, severe bradycardia, and advancement to 3rd degree heart block (complete heart block).
- Onset of haemodynammic instability can be abrupt and unanticipated and may trigger syncope or sudden cardiac death.
- Second Degree Heart Block Type II [Online image]. (2013). Retrieved July 19, 2016, from http://www.practicalclinicalskills.com/ekg-reference-guide-details?lessonID=37
- AV Block: 2nd degree, Mobitz II. (n.d.). Retrieved July 27, 2016, from http://lifeinthefastlane.com/ecg-library/basics/mobitz-2/