Second degree AV block natural history, complications and prognosis: Difference between revisions
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==Overview== | ==Overview== | ||
[[Second-degree AV nodal block]] commonly is seen in acute [[clinical]] settings including acute inferior wall [[myocardial infarction]], [[digitalis]] intoxication, [[myocarditis]], [[rheumatic fever]]), after [[cardiac]] [[surgery]]. Chronic [[AV nodal block]] is seen in the setting of [[ischemic heart disease]], [[mesothelioma]] of the [[AV node]], [[atrial septal defect]], [[aortic valvular disease]], [[amyloidosis]], [[Reiter's syndrome]], [[mitral valve prolapse]], in [[healthy]] [[populations]], and in [[trained athletes]]. | |||
==Natural History== | ==Natural History== |
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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]
Overview
Second-degree AV nodal block commonly is seen in acute clinical settings including acute inferior wall myocardial infarction, digitalis intoxication, myocarditis, rheumatic fever), after cardiac surgery. Chronic AV nodal block is seen in the setting of ischemic heart disease, mesothelioma of the AV node, atrial septal defect, aortic valvular disease, amyloidosis, Reiter's syndrome, mitral valve prolapse, in healthy populations, and in trained athletes.
Natural History
- Second-degree AV nodal block commonly is seen in acute clinical settings including acute inferior wall myocardial infarction, digitalis intoxication, myocarditis, rheumatic fever), after cardiac surgery.
- Chronic AV nodal block is seen in the setting of ischemic heart disease, mesothelioma of the AV node, atrial septal defect, aortic valvular disease, amyloidosis, Reiter's syndrome, mitral valve prolapse, in healthy populations , and in trained athletes.[1].
- Mobitz II second degree Av block due to block inferior to the AV node (infra-Hisian structures) may progresses to complete heart block.[2].
Complications
Prognosis
Prognosis is generally good in patients with chronic second-degree AV nodal block without organic heart disease.However, in patients with heart disease prognosis is poor and dependent on the severity of underlying heart disease.[5]
References
- ↑ Strasberg B, Amat-Y-Leon F, Dhingra RC, Palileo E, Swiryn S, Bauernfeind R, Wyndham C, Rosen KM (May 1981). "Natural history of chronic second-degree atrioventricular nodal block". Circulation. 63 (5): 1043–9. doi:10.1161/01.cir.63.5.1043. PMID 7471363.
- ↑ Rodstein M, Wolloch L, Iuster Z (1979). "The natural history intraventricular conduction disturbances in the aged: an analysis of the developing second and third degree heart block with clinical pathological correlations". Am. J. Med. Sci. 277 (2): 179–88. doi:10.1097/00000441-197903000-00006. PMID 463945.
- ↑ Bexton RS, Camm AJ (March 1984). "Second degree atrioventricular block". Eur. Heart J. 5 Suppl A: 111–4. doi:10.1093/eurheartj/5.suppl_a.111. PMID 6373268.
- ↑ Mangi MA, Jones WM, Napier L. PMID 29493981. Missing or empty
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(help) - ↑ Strasberg, B; Amat-Y-Leon, F; Dhingra, R C; Palileo, E; Swiryn, S; Bauernfeind, R; Wyndham, C; Rosen, K M (1981). "Natural history of chronic second-degree atrioventricular nodal block". Circulation. 63 (5): 1043–1049. doi:10.1161/01.CIR.63.5.1043. ISSN 0009-7322.