Third degree AV block historical perspective: Difference between revisions
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==Historical Perspective== | ==Historical Perspective== | ||
* | *'''1895:''' Willem Einthoven (1860 –1927) : invented the first practical electrocardiogram (ECG or EKG) | ||
* | *'''1894:''' Dr. Engelmann described a phenomenon of AV interval lengthening. Dr. Engelmann described a stimulus that is applied to the atrium followed by elongation of the AV interval.<ref name="pmid18907667">{{cite journal| author=LANGENDORF R| title=Concealed A-V conduction; the effect of blocked impulses on the formation and conduction of subsequent impulses. | journal=Am Heart J | year= 1948 | volume= 35 | issue= 4 | pages= 542-52 | pmid=18907667 | doi=10.1016/0002-8703(48)90641-3 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18907667 }}</ref> | ||
*'''1899:''' Karel Frederik Wenckebach publishes a paper "On the analysis of irregular pulses" describing impairment of AV conduction leading to progressive lengthening and blockage of AV conduction in frogs. This will later be called Wenckebach block (Mobitz type I) or Wenckebach phenomenon. | |||
* 1925: Dr. Ashmar further studied this blocked impulses and their impact on the conduction in the muscle of the heart. He stated the early blocked beats that follow a normal impulses have less effect on the conduction system. | |||
* | * | ||
===Discovery=== | ===Discovery=== | ||
* | * | ||
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===Landmark Events in the Development of Treatment Strategies=== | ===Landmark Events in the Development of Treatment Strategies=== | ||
Revision as of 17:48, 9 April 2020
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Diagnosis |
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Treatment |
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Third degree AV block historical perspective On the Web |
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Risk calculators and risk factors for Third degree AV block historical perspective |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Soroush Seifirad, M.D.[2]
Overview
Historical Perspective
- 1895: Willem Einthoven (1860 –1927) : invented the first practical electrocardiogram (ECG or EKG)
- 1894: Dr. Engelmann described a phenomenon of AV interval lengthening. Dr. Engelmann described a stimulus that is applied to the atrium followed by elongation of the AV interval.[1]
- 1899: Karel Frederik Wenckebach publishes a paper "On the analysis of irregular pulses" describing impairment of AV conduction leading to progressive lengthening and blockage of AV conduction in frogs. This will later be called Wenckebach block (Mobitz type I) or Wenckebach phenomenon.
- 1925: Dr. Ashmar further studied this blocked impulses and their impact on the conduction in the muscle of the heart. He stated the early blocked beats that follow a normal impulses have less effect on the conduction system.
Discovery
Landmark Events in the Development of Treatment Strategies
- Paul Zoll - 1952: First temporary transcutaneous cardiac pacing.
- Seymour Furman -1958: temporary endocardial approach
- Åke Senningm and Elmqvist -1958: The First Implantable Pacemakers. He was a thoracic surgeon at the Karolinska Hospital in Stockholm, implanted myocardial electrodes and a pulse generator with a rechargeable nickel-cadmium battery in a 40-year-old patient.[2]
Impact on Cultural History
Famous Cases
The following are a few famous cases of third degree AV block:
References
- ↑ LANGENDORF R (1948). "Concealed A-V conduction; the effect of blocked impulses on the formation and conduction of subsequent impulses". Am Heart J. 35 (4): 542–52. doi:10.1016/0002-8703(48)90641-3. PMID 18907667.
- ↑ van Hemel NM, van der Wall EE (2008). "8 October 1958, D Day for the implantable pacemaker". Neth Heart J. 16 (Suppl 1): S3–4. PMC 2572009. PMID 18958267.