Talk:Artificial cardiac pacemaker

message: Section no. 3 'Basic function' needs a much clearer explanation with a bullet-point list of typical cardiac syndromes and the associated scenarios of use of the pacemaker. Acronyms whould be avoided if at all possible, and in any case a definition should be provided when they are first used. As it stands now it is very unclear.  — Preceding unsigned comment added by 93.36.224.141 (talk) 10:00, 19 June 2015 (UTC)
thread_title: 'Basic function' section needs to be expanded and clarified by an expert

message: When looking at the photo for the pacemaker dependent asystole, it is stated that the patient has a RBBB.  I would question this as a RBBB implies that there is a supraventricular origin for the initiation of the beat.  In this case the QRS interval is extended out of normal range, but once again it is normal for a (paced) ventricular beat to have a prolonged QRS.  The reference to RBBB should be removed. rmosler (talk) 17:43, 22 January 2009 (UTC)
thread_title: Pacemaker dependent asystole

message: I'm trying to create a timeline for the history of artificial pacemakers:
1954 - First cardiac pacemaker stimulates a human heart - Used skin electrodes, caused skin burns.
1955 - Dr. Paul Zoll, MD, developed a pulse generator that stimulates the heart.  Manufactured as the PM-65 by Electrodyne, it was intended for use as emergency support during cardiac surgery.
1957 - After a power outage caused a PM-65 to stop functioning, Dr. C. Walton Lillehei asked Earl Bakken to create a device that worked on batteries.  This prototype lead to the 5800 line of pacemakers by Medtronic, the first wearable external pacemaker.  This device was also the first with implantable internal electrodes.
1958/Oct/8 - Under the direction of Dr. Åke Senning, Rune Elmqvist developed the first fully implantable pacemaker.  The first implantation was performed on a Swedish man named Arne Larsson.  He was 43 y/o at the time, and suffered from life-threatening Stokes-Adams seizures. (The first device worked for three hours. A second one was inserted the next day, which worked for a couple of weeks. In 1971 Mr. Larsson got a device that worked well. Mr. Larsson lived a long and full life until his death on December 28, 2001. Over his lifetime, Mr. Larsson received a total of 22 pacemakers over 43 years.) The power supply for this first pacemaker was two nickel cadmium battery cells which were recharged from the outside by an inductive coil.  The battery cells and the silicon transistors were encased in epoxy resin.  The entire pacemaker device (excluding leads) measured 55mm diameter by 16mm thickness.
1959/May/19 - First long term transvenous pacing wire used.  A 67 year old male with high degree heart block underwent insertion of a transvenous lead via cephalic vein cut down.  The transvenous wire was attached to an externalized pacing system via the skin incision.  The pacing system was able to sense native ventricular activity, but was not able to inhibit pacing output based on sensed activity.  The gentleman was discharged from the hospital on June 23, 1959.  Because the pacing lead exited through the skin, the skin site required frequently infected.  However he never developed a systemic infection due to the pacing system.  After using the device for 41 months, he underwent implantation of a completely internal pacemaker system on November 8, 1962.  He died 20 days later due to complications from the surgery.
1959 - Dr. William Chardack and Dr. Andrew Gage at the Veterans Administration Hospital in Buffalo, N.Y., working with William Greatbatch (an electrical engineer), developed the (first) a fully implantable pacemaker using primary cells as a power source.
1960/Feb/3 - Orestes Fiandra MD and Roberto Rubio MD implanted the first pacemaker in the Western Hemisphere in a 40 year old woman with complete heart block and syncopal episodes.  The device worked for the 9 months that the patient survived her other ailments. The device was designed in cooperation with, and produced by, Rune Elmqvist. 
1960/Jun/6 - Chardack, Gage and Greatbatch implanted a self-contained, completely internal pacemaker powered by a non-rechargeable mercury zinc oxide batteries, in Buffalo, USA.  The patient died 2 years later of unrelated causes.
1960/Jul - Greatbatch files for a patent on the implantable pacemaker. It is granted(!)in 1962.
1960 - Medtronic creates (first)a long-term implantable pacemaker system
1962 - The first permanent transvenous pacemakers were implanted almost simultaneously by Lagergren in Sweden and Parsonnet in New Jersey. (Parsonnet, V., Zucker, I.R., and Asa, M.M.: Preliminary Investigation of the development of a permanent implantable pacemaker utilizing an intracardiac dipolar electrode. Clin. Res., 10: 391, 1962.  Parsonnet, V. Permanent Transvenous pacing in 1962. Pace, 1: 285, 1978. Lagergren, H and Johansson, L. Intracardiac stimulation for complete heart block. Acta. Chir. Scan. 125:562, 1963; Lagergren, H. "How it Happened: My Recollection of Early Pacing." PACE: Pacing and Clinical Electrophysiology 1.1 (Janurary 1978): 140-43., )
1974/Jul/9 - Cardiac Pacemkers, Inc. (Guidant) creates first pacemaker with lithium battery : REF: *PT#: 3822707 Metal-Enclosed Cardiac Pacer with Solid-State Power Source - Image Document
1974 - Plutonium battery devices in use.
References:
http://www.mnhs.org/collections/medTech/org_cardiac_pacemakers.html
http://www.naspe.org/ep-history/timeline/
http://www.medtronic.com/corporate/history.html
http://www.bae.ncsu.edu/bae/courses/bae465/1995_projects/scho/htmls/history1.html
http://inventors.about.com/library/inventors/blcardiac.htm
----
How about this one?
*History of Pacemakers
--Smithfarm 15:04, 14 August 2006 (UTC)
thread_title: Timeline

message: What's the typical power consumption of an artificial pacemaker? 193.171.121.30 00:58, 13 May 2005 (UTC)
thread_title: Power consumption

message: The text at the end of the page seems to be copied directly from the middle part of , ?s and all (before I corrected the ?s into 's anyway). However, it also appears in some other pages in the google cache, such as  (currently 404'd at the original url) The text was added in  by 144.15.16.71, which has no other contributions. Should this be removed, or has authorization for the use of this text been given at some time in the past? -- bd_ 00:17, 25 Feb 2005 (UTC)
replies: text: It looks like this article is almost identical to one found here: http://www.thedoctorslounge.net/cardiology/procedures/pacemaker.htm.  Doctor's lounge says it is copyrighted... question is who copied from whom? Nephron 06:21, 21 March 2006 (UTC)
replies: text: Why did you remove the whole article? Large parts of the wikipedia article is not the same as the linked one. And still no indication of who has copied who. If you look at the history of the page, you can see the evolution of the article. (And I have made parts of the contrubution myself.)Please reinstate immediatly. I think that these kind of actions is the same as vandalism. 09:45, 21 March 2006 (UTC)
thread_title:  Possible copyvio? 

message: Discussion copied from Wikipedia:Reference desk/Science. Jay 11:44, 10 February 2006 (UTC)
replies: text: Immunosuppressive drugs are the most common technique. -- Daverocks (talk) 10:05, 2 February 2006 (UTC)
replies: text: I actually had checked out the Immunosuppressive drug article. It talked of natural organ translpants, but there was no mention of artificial organ transplants. Will the case with artifical be a lot different ? Jay 12:48, 2 February 2006 (UTC)

text: The chemical makeup of the casing is so designed that it will rarely cause problems. The whole thing will not be rejected, and will be encapsulated by scar tissue, in the same way a piercing is. -- Ec5618 11:21, 2 February 2006 (UTC)
replies: text: Can you give some link to this ? I would like to add all this to the article. Jay 12:48, 2 February 2006 (UTC)

text: Immunosuppressive drugs are not used when mechanical devices (or even non-living biomechanical devices such as a porcine heart valve) are implanted. Such devices do not provoke a Type IV hypersensitivy immunological response. - Nunh-huh 20:02, 2 February 2006 (UTC)
replies: text: Oh. Whoops. I guess I shouldn't talk from now on, considering I'm not a physicist physician. Must stop getting my words mixed up. -- Daverocks (talk) 06:11, 3 February 2006 (UTC)
thread_title:  Avoiding pacemaker rejection 

message: : The first American-made nuclear-powered pacemaker was developed and implanted by ...
From this sentence I get the idea that pacemakers do not use ordinary batteries, but instead some kind of nuclear power. However the article has precious little to say about it. Anyone care to expand on this? --Smithfarm 14:51, 14 August 2006 (UTC)
thread_title:  Nuclear power? 

message: I have deleted the singular reference to Dr Bigelow and added relevant synoptic text to John Hopps.  Dr's Bigelow & Callaghan at Toronto General Hospital in 1950 noted during open heart surgery that heartbeats could be elicited by 'prodding' the exposed non-beating heart and from this postulated that electrical stimulation might produce a similar effect. Their postulate was presented to John Hopps. Reference: www.utoronto.ca/bantresf/HallofFame/Bigelow.html.  An article referring to the many contributions to open heart surgey by Dr. Wilfred Bigelow would be appropriate.Geoffrey Wickham 03:42, 21 December 2006 (UTC)
thread_title:  Bigelow reference 

message: A supporting & informative link to the Hyman Pacemaker is at http://www.hrsonline.org/ep-history/topics_in_depth/topics/hymanpacemaker.asp , which can also be found by doing a Google "hyman pacemaker".  Would someone with more knowledge of Wikipedia procedures please put-in a link where  is requested ?Geoffrey Wickham 03:50, 30 December 2006 (UTC)
thread_title:  Hyman pacemaker 

message: The above article is tagged with a proposal it be merged with Artificial pacemaker section
Artificial_pacemaker#Bi-Ventricular pacing (BVP).  The latter section is also tagged suggesting merging with Cardiac resynchronization therapy.As the information provided in Cardiac resynchronization therapy duplicates that in Artificial pacemaker and as Artificial pacemaker is the definitive article, I suggest that it would best to tag Cardiac resynchronization therapy for deletion. What do others think ?Geoffrey Wickham 02:19, 1 January 2007 (UTC)
replies: text: I think that properly expanded, it has stand-alone merit. Eventually it will need to be a separate article. Best, MoodyGroove 18:49, 22 February 2007 (UTC)

text: * I am Opposed to merging Cardiac resynchronization therapy into the current article. Once this article is fully expanded, it will easily meet the recommended size limit. It should touch on cardiac resynchronization therapy and refer the reader to the other article for a more detailed discussion of the indications, lead placement techniques, and relevant clinical trials. Best, MoodyGroove 15:10, 27 February 2007 (UTC)
thread_title:  Article [[Cardiac resynchronization therapy]]

message: My edit of 5.23 25 January 2007.  Reference is McWilliam J.A., Brit Med. J. 1889, 1:348-350, referenced in http://hrsonline.org/ep-history/timeline/1800s/  .  Would a user more competant in Wikipedia formatting please enter the reference in the article's references. Thanks Geoffrey Wickham 05:33, 25 January 2007 (UTC)
thread_title:  J A McWilliam 

message: My edit of 07.28 31 January 2007.  The reference for  is http://www.hrsonline.org/ep-history/notable_figures/bios/jean-jacques_welti/. Would a user more competant in Wikipedia formatting please enter the reference in the article's references. Thanks Geoffrey Wickham 07:41, 31 January 2007 (UTC)
thread_title: Reference to pervenous pacing in History 

message: Re my edit of 05.05 7 February 2007; would a user more competant in formatting please enter 
at 'citation needed' the link  http://www.sahha.gov.mt/pages.aspx?page=665 .Geoffrey Wickham 05:15, 7 February 2007 (UTC)
thread_title:  Reference to Lidwell in pacing history 

message: The term "Brain Pacemaker" is an inaccurate journalistic term, not clinical terminology.
A "pacemaker", as in cardiac pacemaker, is a device which applies a singular electrical impulse by way of one electrode contacting the heart muscle in order to evoke a single muscular contraction, or may apply singular or grouped impulses to 2 or more electrodes in order to terminate a cardiac arrhythmia.
A "brain pacemaker" does not use a singular electrical impulse to evoke an immediate contraction, or singular response by the brain; instead it appplies a train of impulses at a frequency upwards of 80Hz, to block or change the manner in which chemical synapse's operate in groups or in communication between groups and thus acts in the manner of a chemical drug but with more focus than a drug.
Thus, I argue that reference to "Brain Pacemaker" within the top section of Artificial Pacemaker is incorrect and misleading to the lay reader.Geoffrey Wickham 03:25, 20 February 2007 (UTC)
thread_title:  Deletion of ref. to Brain Pacemaker 

message: Greetings, apologies for this slight diversion, but there is confusion on another page about whether cardiac implants use power transmission via electrical induction or conduction or both.  It would be great if you could make a comment over at this link Talk:Wireless_energy_transfer#Cardiac_energy_transfer_through_tissue.  Thanks and best regards.Charles 14:54, 25 February 2007 (UTC)
thread_title: Request for comment

message: I was wondering whether anyone knew of the price listing on these shiny pieces of humans are? A listing of them in any currency from where the information is available is good I guess. Thanksly, Aeryck89 04:08, 29 March 2007 (UTC)
thread_title:  Cost for one of theses beauties 

message: The links to references 1, 2, 5 no longer work (at least not for me). However, the home page for each of these 3 links still works. It's http://www.hrsonline.org ; but one has to navigate from there to find the references. Does anybody more computer savvy than me have any good ideas ? Geoffrey Wickham 02:46, 10 May 2007 (UTC)
replies: text: If you could navigate to the appropriate web pages that correspond to each reference and share the URL for each on my talk page, I will be happy to turn them into in-line citations. Best, MoodyGroove 15:25, 10 May 2007 (UTC)
replies: text:  Thanks.  I've inserted ref 4 (Mond) to the Hyman section as Mond also discusses the Hyman pacemaker. Geoffrey Wickham 22:45, 11 May 2007 (UTC)
thread_title: Link Problems

message: A 'thank you' to user Vpace1 ( who doesn't have a home page) for supplying the additional references.Geoffrey Wickham 05:18, 13 October 2007 (UTC)
thread_title: Edit of 05.07 13 Oct 2007

message: asked for peer review. Firstly, congratulations on the hard work! With the infrequent appearance of our wiki-cardiologist some electrophysiology articles were suffering a bit, but not this one!
Some brief comments:
* I don't think bolding the years in the history section is consistent with the manual of style.
* Not all references to journal articles use the  template, and lack PMID numbers.
* We need to mention the downsides of pacing ("pacing cardiomyopathy", which can be overcome with demand pacing etc), infection of leads, rate of complications, lead fracture etc etc.
* I wish to offer  () for consideration as a resource, mainly for some more clinical background.
Let me know if help is needed. I may be able to lend a hand. JFW | T@lk 19:48, 24 October 2007 (UTC)
thread_title:  Peer review 

message: An edit in History of 15.14, 4 December 2008 by 190.93.144.10 implies that Jorge Reynolds Pombo designed an implantable pacemaker in 1958. I have chosen to delete the edit on the grounds:
1. The ref 9 is only a Template Title.
2. A Google indicates that Dr Pombo has an extensive history in surgery, but no substantiation found for the claim.
It is possible that Dr Pombo designed an implantable pacemaker in 1958, about the same time as Senning in Sweden, but in the absence of a reliable source which verifies the claim, and which in particular gives details of the design & where and when implanted, the inclusion of the claim In History is not appropriate.  All published histories of the subject as known to me make no reference to Dr Pombo; however if in fact Dr Pombo did design and implant a pacemaker in 1958 it is an important contribution which deserves recognition in Wikipedia.Geoffrey Wickham (talk) 03:59, 7 December 2008 (UTC)
replies: text: , is in spanish, a traduction here:  --190.93.144.10 (talk) 02:18, 8 December 2008 (UTC)
thread_title: Deletion of edit re Jorge Reynolds Pombo in History

message: The edit by 190.28.149.18 of 7 Aug. 2009 repeats the citation of the above deleted entry. The source cited simply claims the design of an implantable pacemaker in 1958 without substantiation. We must always seek reliable sources for a 'source cited'. The editor 190.28.149.18 should seek and cite substantiation by way of an article in a medical journal or similar reliable source.Geoffrey Wickham (talk) 03:23, 9 August 2009 (UTC)
thread_title: Further deletion Re Dr Pombo

message: do any pacemakers exist with witricity recharging ? this would eliminate the replacement after each 5 years. include in article  —Preceding unsigned comment added by 81.246.172.166 (talk) 09:22, 9 March 2009 (UTC)
thread_title: witricity

message: Hi,
Just wondering if someone would be able to add a bit about indications? The stuff on the page seems a bit minimal. Thanks. (I would but thats the information I came here looking for.)94.8.67.104 (talk) 12:08, 23 January 2011 (UTC)
thread_title:  Indications 

message: The edit of 19th Jan 2011 by 192.38.117.2 which cites an experiment by Hugo von Ziemssen may be an inappropriate addition to the History section.
From the early 1700's there were many cardiac/electricity experiments conducted by people such as Galvani, von Kollicker, Aldane to name just a few; von Ziemssen is one more.
If we are to add von Ziemssen should we not add all the others?
What do other contributors thinks ? Geoffrey Wickham (talk) 06:53, 16 February 2011 (UTC)
thread_title: Edit to History re Hugo von Ziemssen

message: Just came across The internal pacemaker which was just created. The article could probably do with some assistance from somebody that knows something about it. CambridgeBayWeather (talk) 05:08, 5 May 2011 (UTC)
thread_title:  The internal pacemaker 

message: Reference for my edit of 24 September 2011 re George Reynolds Pombo
is http://innovadoresdeamerica.org/app/en/participant_bio.aspx?id=12  — Preceding unsigned comment added by 112.213.191.87 (talk) 00:45, 24 September 2011 (UTC)
thread_title: Jorge Reynolds Pombo

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message: Pacemaker pioneer now lives with device, CNN, Elizabeth Landau and Evelio Contreras, April 26, 2013.
"  .  .  .  When Dr. Lillehei was putting these patches in the children to close the ventricaluar septal defect, there's a critical nerve that runs right along that hole, and it's invisible. And in about 10% of the patients, the stitch could go around that nerve and then cause the heart rate to go from, say, 100 in a 2-year-old child, to 20, which is not compatible with life.
"That was a problem, actually, for almost two years after Dr. Lillehei started his surgery. It was in the fall of 1956 that a young physiologist, Dr. Jack Johnson at the University of Minnesota, said you know, to Dr. Lillehei and the rest of them, 'I've been pacing frog hearts for five years with an electrical stimulator. Why don't you use that?'
"I went over and borrowed this electrical stimulator from Jack Johnson, and we were able to create heart block in a research animal very easily. It's just a matter of putting a wire in the heart and a wire in the skin, and connecting it up to Dr. Johnson's electrical stimulator, and it worked. And then Dr. Lillehei started using that in January of 1967 [1957, per below source], and that was really the start of the pacemaker.
"At that time, there was not a portable pacemaker. And these children could not go home with a pacemaker, but Mr. Earl Bakken, who was the president of a small company called Medtronic in Minneapolis, then built a portable, battery powered pacemaker that these children could use.
"We never envisioned at that time that there would be literally hundreds of thousands of adults who could benefit from the pacemaker. I in fact received a pacemaker myself five years ago for heart block.  .  .  "
:::CNN is a solid news source, although not perfect as it got the date wrong.  Still think we might be able to us this in our article, as one of a handful of references.  FriendlyRiverOtter (talk) 20:24, 25 February 2017 (UTC)
thread_title:  mid-1950s history of pacemaker? 

message: 3D-printed 'electronic glove' could help keep your heart beating for ever, The Independent [UK}, James Vincent, 3 March 2014.
::'  .  .  .  The innovation in this new device is the use of stretchable electronics developed by John Rogers, a materials scientists from the University of Illinois.  .  .  '
So far, it's just experimental and apparently just for a rabbit's heart outside its body.  But it is a potential future development.  FriendlyRiverOtter (talk) 15:43, 1 April 2017 (UTC)
thread_title:  future developments? 

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thread_title:  External links modified 

message: This does not seem to meet notability standards for a standalone article, but it seems as if it could be useful in the article on pacemakers. Would welcome any thoughts. AleatoryPonderings (talk) 00:53, 22 August 2020 (UTC)
thread_title:  Proposed merge of [[Demand pacemaker]] into [[Artificial cardiac pacemaker]] 

message: First-ever Transient Pacemaker Harmlessly Dissolves in Body Mapsax (talk) 01:07, 18 July 2021 (UTC)
thread_title:  Transient pacemaker 

message: No mention of him in the article as the inventor of the pacemaker, or even a contributor.  Is this reference not correct? Danshawen (talk) 02:08, 31 August 2021 (UTC)
thread_title:  Inventor of the pacemaker Jan Nico Homan van der Heide, who just died at 94? 

message: Artificial cardiac pacemaker#Permanent transvenous pacing defines the term "Rate-responsive pacemaker" but the reference does not mention rate-responsiveness. Is there a source for this claim (hopefully with some details about how it works)? 76.216.220.191 (talk) 14:25, 15 December 2021 (UTC)
thread_title:  Rate-responsive?