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{{Third degree AV block}}
{{Third degree AV block}}
{{CMG}}; {{AE}} {{Soroush}}
{{CMG}}; {{AE}} {{Sara.Zand}} {{Soroush}} {{ADG}}
==Overview==
==Overview==
There are no established risk factors for third degree AV block.
Common risk factors associated [[atioventricular block]] include older [[age]], [[male sex]], history of [[myocardial infarction]], history of [[congestive heart disease]], [[high]] [[systolic blood pressure]], increased [[fasting]] blood [[glucose]] level.
 
OR
 
The most potent risk factor in the development of third degree AV block is [risk factor 1]. Other risk factors include [risk factor 2], [risk factor 3], and [risk factor 4].
 
OR
 
Common risk factors in the development of third degree AV block include [risk factor 1], [risk factor 2], [risk factor 3], and [risk factor 4].
 
OR
 
Common risk factors in the development of third degree AV block may be occupational, environmental, genetic, and viral.


==Risk Factors==
==Risk Factors==
There are no established risk factors for third degree AV block.
::*Common risk factors associated with [[atioventricular block]] include:<ref name="pmid31125096">{{cite journal| author=Kerola T, Eranti A, Aro AL, Haukilahti MA, Holkeri A, Junttila MJ et al.| title=Risk Factors Associated With Atrioventricular Block. | journal=JAMA Netw Open | year= 2019 | volume= 2 | issue= 5 | pages= e194176 | pmid=31125096 | doi=10.1001/jamanetworkopen.2019.4176 | pmc=6632153 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=31125096  }}</ref>
 
*Older [[age]]
OR
* Male sex
 
* History of [[myocardial infarction]]
The most potent risk factor in the development of third degree AV block is [risk factor 1]. Other risk factors include [risk factor 2], [risk factor 3], and [risk factor 4].
*History of [[congestive heart disease]]
 
*[[High]] [[systolic blood pressure]]
OR
*Increased [[fasting blood glucose]] level
 
::* Common risk factors associated with [[atrioventricular block]] after [[cardiac]] surgery include:<ref name="pmid28122567">{{cite journal |vauthors=Bougioukas I, Jebran AF, Grossmann M, Friedrich M, Tirilomis T, Schoendube FA, Danner BC |title=Is there a correlation between late re-exploration after cardiac surgery and removal of epicardial pacemaker wires? |journal=J Cardiothorac Surg |volume=12 |issue=1 |pages=3 |date=January 2017 |pmid=28122567 |pmc=5264443 |doi=10.1186/s13019-017-0569-5 |url=}}</ref>
Common risk factors in the development of third degree AV block include [risk factor 1], [risk factor 2], [risk factor 3], and [risk factor 4].
* Older age
===Common Risk Factors===
* [[Atrial fibrillation]]
*Common risk factors in the development of third degree AV block may be occupational, environmental, genetic, and viral.
* Prior [[surgery]]
*Common risk factors in the development of third degree AV block include:
* [[ Preoperative]] [[renal failure]]
**[Risk factor 1]
* Active [[endocarditis]]
**[Risk factor 2]
::* Common risk factor associated with intraoperative [[bradycardia]] and [[hypotension]] in [[patients]] undergoing non-[[cardiac]] [[surgery]] include:<ref name="pmid14570803">{{cite journal |vauthors=Unnikrishnan D, Idris N, Varshneya N |title=Complete heart block during central venous catheter placement in a patient with pre-existing left bundle branch block |journal=Br J Anaesth |volume=91 |issue=5 |pages=747–9 |date=November 2003 |pmid=14570803 |doi=10.1093/bja/aeg242 |url=}}</ref>
**[Risk factor 3]
*Age (>60-65 years of age)
 
*[[ Comorbidities]]
===Less Common Risk Factors===
* Lower [[heart rates]] (<60 bpm) or [[blood pressure]] (<110/60 mm Hg) at baseline
*Less common risk factors in the development of third degree AV block include:
* Use of concomitant [[drugs]] such as [[beta-blockers]], [[renin-angiotensin system]] blockers
**[Risk factor 1]
::* Common risk factors associated with [[PPM]] implantation after [[valve]] surgery include:<ref name="pmid6204288">{{cite journal |vauthors=Goldman BS, Hill TJ, Weisel RD, Scully HE, Mickleborough LL, Pym J, Baird RJ |title=Permanent cardiac pacing after open-heart surgery: acquired heart disease |journal=Pacing Clin Electrophysiol |volume=7 |issue=3 Pt 1 |pages=367–71 |date=May 1984 |pmid=6204288 |doi=10.1111/j.1540-8159.1984.tb04919.x |url=}}</ref>
**[Risk factor 2]
* Preoperative [[RBBB]]
**[Risk factor 3]
* [[Multivalve]] [[surgery ]], especially [[tricuspid valve]]
* Preoperative [[LBBB]]
* Preoperative [[PR interval]] >200 ms
* Prior [[valve]] surgery
* [[Age]] >70 years
* Reoperations
* Longer times of [[cross-clamp]]
*Absence of [[preoperative]] [[sinus rhythm]]


==References==
==References==

Latest revision as of 11:16, 7 July 2021

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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] Soroush Seifirad, M.D.[3] Aditya Ganti M.B.B.S. [4]

Overview

Common risk factors associated atioventricular block include older age, male sex, history of myocardial infarction, history of congestive heart disease, high systolic blood pressure, increased fasting blood glucose level.

Risk Factors

  • Common risk factors associated with PPM implantation after valve surgery include:[4]

References

  1. Kerola T, Eranti A, Aro AL, Haukilahti MA, Holkeri A, Junttila MJ; et al. (2019). "Risk Factors Associated With Atrioventricular Block". JAMA Netw Open. 2 (5): e194176. doi:10.1001/jamanetworkopen.2019.4176. PMC 6632153 Check |pmc= value (help). PMID 31125096.
  2. Bougioukas I, Jebran AF, Grossmann M, Friedrich M, Tirilomis T, Schoendube FA, Danner BC (January 2017). "Is there a correlation between late re-exploration after cardiac surgery and removal of epicardial pacemaker wires?". J Cardiothorac Surg. 12 (1): 3. doi:10.1186/s13019-017-0569-5. PMC 5264443. PMID 28122567.
  3. Unnikrishnan D, Idris N, Varshneya N (November 2003). "Complete heart block during central venous catheter placement in a patient with pre-existing left bundle branch block". Br J Anaesth. 91 (5): 747–9. doi:10.1093/bja/aeg242. PMID 14570803.
  4. Goldman BS, Hill TJ, Weisel RD, Scully HE, Mickleborough LL, Pym J, Baird RJ (May 1984). "Permanent cardiac pacing after open-heart surgery: acquired heart disease". Pacing Clin Electrophysiol. 7 (3 Pt 1): 367–71. doi:10.1111/j.1540-8159.1984.tb04919.x. PMID 6204288.


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