Second degree AV block history and symptoms

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sara Zand, M.D.[2] Cafer Zorkun, M.D., Ph.D. [3]

Overview

Common symptoms in patients with second degree atrioventricular block include light-headedness, dizziness, fainting, fatigue, heart failure symptoms , pre-syncope, and syncope. Mobitz type 1 second degree AV block (Wenckebach) is often asymptomatic and can be seen in active, healthy patients without known heart disease. It may occur during exercise causing exertional intolerance or dizziness, or syncope. In patients with intermittent atrioventricular block leading syncope, initial evaluation including resting ECG, physical exam, echocardiography may be normal and intermittent episodes of the atrioventricular block can be found with long-term monitoring. Symptoms in patients with an atrioventricular block that conducts in a 2:1 pattern include fatigue and dizziness particularly if it persists during exertion.

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References

  1. Zeppilli P, Fenici R, Sassara M, Pirrami MM, Caselli G (September 1980). "Wenckebach second-degree A-V block in top-ranking athletes: an old problem revisited". Am. Heart J. 100 (3): 281–94. doi:10.1016/0002-8703(80)90140-4. PMID 7405798.
  2. "StatPearls". 2020. PMID 29083636.
  3. 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.
  4. Wogan JM, Lowenstein SR, Gordon GS (1993). "Second-degree atrioventricular block: Mobitz type II". J Emerg Med. 11 (1): 47–54. doi:10.1016/0736-4679(93)90009-v. PMID 8445186.
  5. 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.
  6. Mangi MA, Jones WM, Napier L. PMID 29493981. Missing or empty |title= (help)
  7. Brignole M, Deharo JC, De Roy L, Menozzi C, Blommaert D, Dabiri L, Ruf J, Guieu R (July 2011). "Syncope due to idiopathic paroxysmal atrioventricular block: long-term follow-up of a distinct form of atrioventricular block". J Am Coll Cardiol. 58 (2): 167–73. doi:10.1016/j.jacc.2010.12.045. PMID 21570228.
  8. Marti-Almor J, Cladellas M, Bazan V, Altaba C, Guijo M, Delclos J, Bruguera-Cortada J (September 2009). "Long-term mortality predictors in patients with chronic bifascicular block". Europace. 11 (9): 1201–7. doi:10.1093/europace/eup181. PMID 19578058.


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