Editing First-degree atrioventricular block (section)

== FAA controversy ==
In October 2022 the [[FAA]] quietly changed the medical policy in their Guide for Aviation Medical Examiners to define a first-degree AV block as a PR interval greater than 300ms. <ref>{{cite web|title=Guide for Aviation Examiners, Archives and Updates
|url=https://www.faa.gov/ame_guide/monthly_guide_updates|website=FAA Guide for Aviation Medical Examiners|publisher=faa.gov|accessdate=31 October 2022|archive-url=https://web.archive.org/web/20221031145709/https://www.faa.gov/about/office_org/headquarters_offices/avs/offices/aam/ame/guide/media/Archives.pdf|archive-date=31 October 2022|url-status=dead}}</ref> This was considered controversial <ref>{{cite web|title=The FAA has very quietly tacitly admitted that the EKGs of pilots are no longer normal
|url=https://stevekirsch.substack.com/p/the-faa-has-very-quietly-tacitly|website=Substack|date=17 January 2023 |publisher=substack.com|accessdate=31 March 2023|archive-url=https://web.archive.org/web/20230331044406/https://stevekirsch.substack.com/p/the-faa-has-very-quietly-tacitly|archive-date=31 March 2023}}</ref> in part because accepted guidelines for the PR interval remain unchanged at 200ms,<ref>{{cite journal|title=First Degree Heart Block
|url=https://www.ncbi.nlm.nih.gov/books/NBK448164/|website=National Library of Medicine|year=2023 |publisher=nih.gov|pmid=28846254 |accessdate=31 March 2023 |last1=Oldroyd |first1=S. H. |last2=Quintanilla Rodriguez |first2=B. S. |last3=Makaryus |first3=A. N. }}</ref> and in part because at the time there was no explanation of why the FAA required the change. The FAA has subsequently provided a statement explaining its reasoning.<ref>{{cite web|title=New FAA cardiac health rules not prompted by COVID-19 shots|website=[[Associated Press]] |date=20 January 2023 |url=https://apnews.com/article/fact-check-faa-pilots-heart-covid-373861551871|accessdate=12 May 2023}}</ref>