U.S. flag

An official website of the United States government

Format

Send to:

Choose Destination

AV Block Second Degree by ECG Finding

MedGen UID:
811441
•Concept ID:
C3714697
•
Finding
Synonyms: AV Block Second Degree; AV Block Second Degree by EKG Finding; Intermittent AV Block; Second Degree Atrioventricular Block; Second Degree AV Block

Definition

An electrocardiographic finding of intermittent failure of atrial electrical impulse conduction to the ventricles. This is manifest on the ECG by regular P waves which intermittently are not followed by QRS complexes. (CDISC) [from NCI]

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
Evaluation and management of atrioventricular block in children.
Saleh F, Greene EA, Mathison D
Curr Opin Pediatr 2014 Jun;26(3):279-85. doi: 10.1097/MOP.0000000000000100. PMID: 24759228
Clinical features and management of digitalis poisoning--rationale for immunotherapy.
Taboulet P, Baud FJ, Bismuth C
J Toxicol Clin Toxicol 1993;31(2):247-60. doi: 10.3109/15563659309000392. PMID: 8492338

Recent clinical studies

Etiology

Long-Term Follow-Up of Second-Degree Heart Block in Children.
Epstein R, Liberman L, Silver ES
Pediatr Cardiol 2023 Oct;44(7):1529-1535. Epub 2023 Sep 1 doi: 10.1007/s00246-023-03195-w. PMID: 37658175
Assessment of atrioventricular conduction by echocardiography and magnetocardiography in normal and anti-Ro/SSA-antibody-positive pregnancies.
Cuneo BF, Bitant S, Strasburger JF, Kaizer AM, Wakai RT
Ultrasound Obstet Gynecol 2019 Nov;54(5):625-633. doi: 10.1002/uog.20245. PMID: 30784137Free PMC Article
Electrocardiographic and chronobiological features of paroxysmal AV block recorded by ambulatory electrocardiography.
Saito K, Takeda S, Saito Y, Kawamura M, Yoshikawa Y, Yano H, Sata M
J Med Invest 2014;61(3-4):380-7. doi: 10.2152/jmi.61.380. PMID: 25264058
Common questions about pacemakers.
Denay KL, Johansen M
Am Fam Physician 2014 Feb 15;89(4):279-82. PMID: 24695448
ECG variants and cardiac arrhythmias in athletes: clinical relevance and prognostic importance.
Zehender M, Meinertz T, Keul J, Just H
Am Heart J 1990 Jun;119(6):1378-91. doi: 10.1016/s0002-8703(05)80189-9. PMID: 2191578

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
Vagally mediated atrioventricular block: pathophysiology and diagnosis.
Alboni P, Holz A, Brignole M
Heart 2013 Jul;99(13):904-8. Epub 2013 Jan 2 doi: 10.1136/heartjnl-2012-303220. PMID: 23286970
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
Second-degree atrioventricular block.
Zipes DP
Circulation 1979 Sep;60(3):465-72. doi: 10.1161/01.cir.60.3.465. PMID: 378457

Therapy

Benzodiazepine-associated atrioventricular block.
Arroyo Plasencia AM, Ballentine LM, Mowry JB, Kao LW
Am J Ther 2012 Jan;19(1):e48-52. doi: 10.1097/MJT.0b013e3181dcf572. PMID: 20535011
Woldemar Mobitz and His 1924 classification of second-degree atrioventricular block.
Silverman ME, Upshaw CB Jr, Lange HW
Circulation 2004 Aug 31;110(9):1162-7. doi: 10.1161/01.CIR.0000140669.35049.34. PMID: 15339865
Clinical features and management of digitalis poisoning--rationale for immunotherapy.
Taboulet P, Baud FJ, Bismuth C
J Toxicol Clin Toxicol 1993;31(2):247-60. doi: 10.3109/15563659309000392. PMID: 8492338
Atrial flutter.
Olshaker JS
J Emerg Med 1988 Jan-Feb;6(1):55-9. doi: 10.1016/0736-4679(88)90252-1. PMID: 3283216
Amiodarone-induced intra-His block.
Kennedy EE, Batsford WP
J Am Coll Cardiol 1984 Jul;4(1):192-5. doi: 10.1016/s0735-1097(84)80341-1. PMID: 6736449

Prognosis

Long-Term Follow-Up of Second-Degree Heart Block in Children.
Epstein R, Liberman L, Silver ES
Pediatr Cardiol 2023 Oct;44(7):1529-1535. Epub 2023 Sep 1 doi: 10.1007/s00246-023-03195-w. PMID: 37658175
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
Vagally mediated atrioventricular block: pathophysiology and diagnosis.
Alboni P, Holz A, Brignole M
Heart 2013 Jul;99(13):904-8. Epub 2013 Jan 2 doi: 10.1136/heartjnl-2012-303220. PMID: 23286970
ECG variants and cardiac arrhythmias in athletes: clinical relevance and prognostic importance.
Zehender M, Meinertz T, Keul J, Just H
Am Heart J 1990 Jun;119(6):1378-91. doi: 10.1016/s0002-8703(05)80189-9. PMID: 2191578
Second-degree atrioventricular block.
Zipes DP
Circulation 1979 Sep;60(3):465-72. doi: 10.1161/01.cir.60.3.465. PMID: 378457

Clinical prediction guides

Assessment of atrioventricular conduction by echocardiography and magnetocardiography in normal and anti-Ro/SSA-antibody-positive pregnancies.
Cuneo BF, Bitant S, Strasburger JF, Kaizer AM, Wakai RT
Ultrasound Obstet Gynecol 2019 Nov;54(5):625-633. doi: 10.1002/uog.20245. PMID: 30784137Free PMC Article
A Heart too Drunk to Drive; AV Block following Acute Alcohol Intoxication.
van Stigt AH, Overduin RJ, Staats LC, Loen V, van der Heyden MA
Chin J Physiol 2016 Feb 29;59(1):1-8. doi: 10.4077/CJP.2016.BAE364. PMID: 26875557
Vagally mediated atrioventricular block: pathophysiology and diagnosis.
Alboni P, Holz A, Brignole M
Heart 2013 Jul;99(13):904-8. Epub 2013 Jan 2 doi: 10.1136/heartjnl-2012-303220. PMID: 23286970
Arrhythmias in centenarians.
Wakida Y, Okamoto Y, Iwa T, Yonemoto T, Kanemaki K, Shiomi T, Mizutani K, Kobayashi T
Pacing Clin Electrophysiol 1994 Nov;17(11 Pt 2):2217-21. doi: 10.1111/j.1540-8159.1994.tb03829.x. PMID: 7845846
ECG variants and cardiac arrhythmias in athletes: clinical relevance and prognostic importance.
Zehender M, Meinertz T, Keul J, Just H
Am Heart J 1990 Jun;119(6):1378-91. doi: 10.1016/s0002-8703(05)80189-9. PMID: 2191578

Recent systematic reviews

Permanent Left Bundle Branch Area Pacing for High-Degree Atrioventricular Block in a 6-Year-Old Child with 2-Year Follow-Up.
Hua J, Xiong Q, Xia Z, Huang Q, Huang L, Xia Z, Hu J, Li J, Hu J, Chen Q, Hong K
Int Heart J 2022 Sep 30;63(5):957-962. Epub 2022 Sep 14 doi: 10.1536/ihj.22-103. PMID: 36104231
Predictors of Permanent Pacemaker Implantation in Patients Undergoing Transcatheter Aortic Valve Replacement - A Systematic Review and Meta-Analysis.
Ullah W, Zahid S, Zaidi SR, Sarvepalli D, Haq S, Roomi S, Mukhtar M, Khan MA, Gowda SN, Ruggiero N, Vishnevsky A, Fischman DL
J Am Heart Assoc 2021 Jul 20;10(14):e020906. Epub 2021 Jul 14 doi: 10.1161/JAHA.121.020906. PMID: 34259045Free PMC Article

Supplemental Content

Table of contents

    Practice guidelines

    • PubMed
      See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the FAQ for details.
    • Bookshelf
      See practice and clinical guidelines in NCBI Bookshelf. The search results may include broader topics and may not capture all published guidelines. See the FAQ for details.

    Related information

    • PMC Articles
      Related information in PubMed Central Links
    • PubMed
      Related literature resources in PubMed

    Recent activity

    Clear Turn Off Turn On

    Your browsing activity is empty.

    Activity recording is turned off.

    Turn recording back on

    See more...