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2:1 Atrioventricular Block by ECG Finding

MedGen UID:
384561
•Concept ID:
C2346542
•
Finding
Synonyms: 2:1 Atrioventricular Block; 2:1 Atrioventricular Block by EKG Finding

Definition

An electrocardiographic finding of a supraventricular rhythm where the ratio of impulses generated above the atrioventricular node to the number of impulses conducted through to the ventricles is 2:1. This is manifested on the ECG as 2 P waves per QRS complex. (CDISC) [from NCI]

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGV2:1 Atrioventricular Block by ECG Finding

Professional guidelines

PubMed

Association between Atrioventricular Block and Mortality in Primary Care Patients: The CODE Study.
Paixão GMM, Lima EM, Quadros AB, Cabral DPR, Coelho RR, Oliveira DM, Nascimento JS, Gomes PR, Ribeiro AL
Arq Bras Cardiol 2022 Oct;119(4):564-571. doi: 10.36660/abc.20210763. PMID: 35857946Free PMC Article
2:1 AV block : The orphan of organizational guidelines for cardiac pacing.
Barold SS
Herzschrittmacherther Elektrophysiol 2016 Jun;27(2):154-5. doi: 10.1007/s00399-016-0424-8. PMID: 27193770
Fetal arrhythmia: prenatal diagnosis and perinatal management.
Maeno Y, Hirose A, Kanbe T, Hori D
J Obstet Gynaecol Res 2009 Aug;35(4):623-9. doi: 10.1111/j.1447-0756.2009.01080.x. PMID: 19751319

Recent clinical studies

Etiology

Outcomes in orthotopic heart transplantation following pacemaker implantation.
Do DH, Bailey KL, Beyer R, Neubuerger S, Bradfield J, Shivkumar K, Nsair A, Boyle NG
Pacing Clin Electrophysiol 2023 Jul;46(7):583-591. Epub 2023 May 24 doi: 10.1111/pace.14716. PMID: 37221975Free PMC Article
Systematic review of long QT syndrome identified during fetal life.
Chivers S, Ovadia C, Regan W, Zidere V, Vigneswaran T, Sharland G, Rosenthal E, Seed PT, Simpson JM, Williamson C
Heart Rhythm 2023 Apr;20(4):596-606. Epub 2022 Dec 22 doi: 10.1016/j.hrthm.2022.12.026. PMID: 36566891
Association between Atrioventricular Block and Mortality in Primary Care Patients: The CODE Study.
Paixão GMM, Lima EM, Quadros AB, Cabral DPR, Coelho RR, Oliveira DM, Nascimento JS, Gomes PR, Ribeiro AL
Arq Bras Cardiol 2022 Oct;119(4):564-571. doi: 10.36660/abc.20210763. PMID: 35857946Free PMC Article
Electrocardiographic and electrophysiological predictors of atrioventricular block after transcatheter aortic valve replacement.
Rivard L, Schram G, Asgar A, Khairy P, Andrade JG, Bonan R, Dubuc M, Guerra PG, Ibrahim R, Macle L, Roy D, Talajic M, Dyrda K, Shohoudi A, le Polain de Waroux JB, Thibault B
Heart Rhythm 2015 Feb;12(2):321-9. Epub 2014 Oct 31 doi: 10.1016/j.hrthm.2014.10.023. PMID: 25446155
Congenital long QT syndrome.
Crotti L, Celano G, Dagradi F, Schwartz PJ
Orphanet J Rare Dis 2008 Jul 7;3:18. doi: 10.1186/1750-1172-3-18. PMID: 18606002Free PMC Article

Diagnosis

Electrocardiography of Atrioventricular Block.
Clark BA, Prystowsky EN
Cardiol Clin 2023 Aug;41(3):307-313. doi: 10.1016/j.ccl.2023.03.007. PMID: 37321683
Electrocardiography of Atrioventricular Block.
Clark BA, Prystowsky EN
Card Electrophysiol Clin 2021 Dec;13(4):599-605. Epub 2021 Sep 25 doi: 10.1016/j.ccep.2021.07.001. PMID: 34689889
Second-degree atrioventricular block revisited.
Barold SS, Herweg B
Herzschrittmacherther Elektrophysiol 2012 Dec;23(4):296-304. Epub 2012 Dec 7 doi: 10.1007/s00399-012-0240-8. PMID: 23224264
Atrioventricular block revisited.
Barold SS
Compr Ther 2002 Spring;28(1):74-8. doi: 10.1007/s12019-002-0044-6. PMID: 11894446
Atrial flutter.
Olshaker JS
J Emerg Med 1988 Jan-Feb;6(1):55-9. doi: 10.1016/0736-4679(88)90252-1. PMID: 3283216

Therapy

Outcomes in orthotopic heart transplantation following pacemaker implantation.
Do DH, Bailey KL, Beyer R, Neubuerger S, Bradfield J, Shivkumar K, Nsair A, Boyle NG
Pacing Clin Electrophysiol 2023 Jul;46(7):583-591. Epub 2023 May 24 doi: 10.1111/pace.14716. PMID: 37221975Free PMC Article
Electrocardiographic and electrophysiological predictors of atrioventricular block after transcatheter aortic valve replacement.
Rivard L, Schram G, Asgar A, Khairy P, Andrade JG, Bonan R, Dubuc M, Guerra PG, Ibrahim R, Macle L, Roy D, Talajic M, Dyrda K, Shohoudi A, le Polain de Waroux JB, Thibault B
Heart Rhythm 2015 Feb;12(2):321-9. Epub 2014 Oct 31 doi: 10.1016/j.hrthm.2014.10.023. PMID: 25446155
Congenital long QT syndrome.
Crotti L, Celano G, Dagradi F, Schwartz PJ
Orphanet J Rare Dis 2008 Jul 7;3:18. doi: 10.1186/1750-1172-3-18. PMID: 18606002Free PMC Article
Mad honey poisoning.
Gunduz A, Turedi S, Uzun H, Topbas M
Am J Emerg Med 2006 Sep;24(5):595-8. doi: 10.1016/j.ajem.2006.01.022. PMID: 16938599
Atrial flutter.
Olshaker JS
J Emerg Med 1988 Jan-Feb;6(1):55-9. doi: 10.1016/0736-4679(88)90252-1. PMID: 3283216

Prognosis

Systematic review of long QT syndrome identified during fetal life.
Chivers S, Ovadia C, Regan W, Zidere V, Vigneswaran T, Sharland G, Rosenthal E, Seed PT, Simpson JM, Williamson C
Heart Rhythm 2023 Apr;20(4):596-606. Epub 2022 Dec 22 doi: 10.1016/j.hrthm.2022.12.026. PMID: 36566891
Association between Atrioventricular Block and Mortality in Primary Care Patients: The CODE Study.
Paixão GMM, Lima EM, Quadros AB, Cabral DPR, Coelho RR, Oliveira DM, Nascimento JS, Gomes PR, Ribeiro AL
Arq Bras Cardiol 2022 Oct;119(4):564-571. doi: 10.36660/abc.20210763. PMID: 35857946Free PMC Article
Diagnostic and Prognostic Implications of Surface Recordings from Patients with Atrioventricular Block.
Nelson WP
Card Electrophysiol Clin 2016 Mar;8(1):25-35. doi: 10.1016/j.ccep.2015.10.031. PMID: 26920166
Congenital long QT syndrome.
Crotti L, Celano G, Dagradi F, Schwartz PJ
Orphanet J Rare Dis 2008 Jul 7;3:18. doi: 10.1186/1750-1172-3-18. PMID: 18606002Free PMC Article
Multilevel atrioventricular block.
Kosowsky BD, Latif P, Radoff AM
Circulation 1976 Dec;54(6):914-21. doi: 10.1161/01.cir.54.6.914. PMID: 991406

Clinical prediction guides

Systematic review of long QT syndrome identified during fetal life.
Chivers S, Ovadia C, Regan W, Zidere V, Vigneswaran T, Sharland G, Rosenthal E, Seed PT, Simpson JM, Williamson C
Heart Rhythm 2023 Apr;20(4):596-606. Epub 2022 Dec 22 doi: 10.1016/j.hrthm.2022.12.026. PMID: 36566891
Electrocardiographic features of paradoxical ventriculophasic response.
Nakashima T, Nagase M, Shibahara T, Ono D, Yamada T, Tanabe G, Suzuki K, Yamaura M, Ido T, Takahashi S, Okura H, Aoyama T
J Electrocardiol 2022 Mar-Apr;71:67-73. Epub 2022 Feb 12 doi: 10.1016/j.jelectrocard.2022.02.002. PMID: 35183045
Electrocardiographic and electrophysiological predictors of atrioventricular block after transcatheter aortic valve replacement.
Rivard L, Schram G, Asgar A, Khairy P, Andrade JG, Bonan R, Dubuc M, Guerra PG, Ibrahim R, Macle L, Roy D, Talajic M, Dyrda K, Shohoudi A, le Polain de Waroux JB, Thibault B
Heart Rhythm 2015 Feb;12(2):321-9. Epub 2014 Oct 31 doi: 10.1016/j.hrthm.2014.10.023. PMID: 25446155
Diagnosing foetal atrioventricular heart blocks.
Sonesson SE
Scand J Immunol 2010 Sep;72(3):205-12. doi: 10.1111/j.1365-3083.2010.02434.x. PMID: 20696017
Mad honey poisoning.
Gunduz A, Turedi S, Uzun H, Topbas M
Am J Emerg Med 2006 Sep;24(5):595-8. doi: 10.1016/j.ajem.2006.01.022. PMID: 16938599

Recent systematic reviews

Systematic review of long QT syndrome identified during fetal life.
Chivers S, Ovadia C, Regan W, Zidere V, Vigneswaran T, Sharland G, Rosenthal E, Seed PT, Simpson JM, Williamson C
Heart Rhythm 2023 Apr;20(4):596-606. Epub 2022 Dec 22 doi: 10.1016/j.hrthm.2022.12.026. PMID: 36566891
Usefulness of statins in preventing atrial fibrillation in patients with permanent pacemaker: a systematic review.
Santangeli P, Ferrante G, Pelargonio G, Dello Russo A, Casella M, Bartoletti S, Di Biase L, Crea F, Natale A
Europace 2010 May;12(5):649-54. Epub 2010 Feb 26 doi: 10.1093/europace/euq044. PMID: 20189946

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