Second degree AV block natural history, complications and prognosis: Difference between revisions
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==Prognosis== | ==Prognosis== | ||
Mobitz type I second degree AV block is usually benign and carries a good prognosis compared to Mobitz type II. But in the setting of an acute [[MI]] [[Mobitz type I]] is associated with a significant rise in mortality. [[Mobitz II]], as it involves the infra nodal structures, carries the risk of progression to complete heart block and carries an unfavorable prognosis. | Mobitz type I second degree AV block is usually benign and carries a good prognosis compared to Mobitz type II. But in the setting of an acute [[MI]] [[Mobitz type I]] is associated with a significant rise in mortality. [[Mobitz II]], as it involves the infra nodal structures, carries the risk of progression to complete heart block and carries an unfavorable prognosis.<ref name="pmid11988196">{{cite journal| author=Meimoun P, Zeghdi R, D'Attelis N, Berrebi A, Braunberger E, Deloche A | display-authors=etal| title=Frequency, predictors, and consequences of atrioventricular block after mitral valve repair. | journal=Am J Cardiol | year= 2002 | volume= 89 | issue= 9 | pages= 1062-6 | pmid=11988196 | doi=10.1016/s0002-9149(02)02276-2 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=11988196 }}</ref> | ||
==References== | ==References== | ||
Revision as of 04:58, 22 February 2020
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]
Natural History
- Mobitz I second degree AV block, usually most of the times, involves the AV node (70%). In about 30% of the cases the site of block is infranodal. It is usually benign and rarely progresses to complete heart block.
- Mobitz II second degree Av block is due to block inferior to the AV node (infra-Hisian structures) and it progresses to complete heart block.
Complications
Prognosis
Mobitz type I second degree AV block is usually benign and carries a good prognosis compared to Mobitz type II. But in the setting of an acute MI Mobitz type I is associated with a significant rise in mortality. Mobitz II, as it involves the infra nodal structures, carries the risk of progression to complete heart block and carries an unfavorable prognosis.[1]
References
- ↑ Meimoun P, Zeghdi R, D'Attelis N, Berrebi A, Braunberger E, Deloche A; et al. (2002). "Frequency, predictors, and consequences of atrioventricular block after mitral valve repair". Am J Cardiol. 89 (9): 1062–6. doi:10.1016/s0002-9149(02)02276-2. PMID 11988196.