Talk:Electromyography

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Fine wire EMG[edit]

There is no notion of fine wire EMG procedures or applications. I think this should be corrected. —Preceding unsigned comment added by 212.149.212.208 (talk) 12:17, 26 April 2009 (UTC)[reply]

Other uses of EMG EMG has also been used to measure implicit attitudes. By measuring activity of the muscle(s?) controlling eye-blinking, participants' startle-reflex can be recorded in the presence of different stimuli. This is significant because the startle-reflex has been shown to be more pronounced in the presence of negatively-perceived stimuli. Phelps et al 2000 81.107.26.194 (talk) 09:35, 25 May 2009 (UTC)[reply]

Usefulness of surface EMG[edit]

A 1996 study, Haig, et al., "Technology assessment: the use of surface EMG in the diagnosis and treatment of nerve and muscle disorders" (PMID 8606710), states that "There are no clinical indications for the use of SEMG in the diagnosis and treatment of disorders of nerve or muscle". This specific study is cited in the Official Disability Guidelines to substantiate their non-recommendation of surface EMG for the diagnosis of carpal tunnel syndrome. Reading the abstract of a more recent study (2008) suggests the same conclusions; Meekins, et al., "American Association of Neuromuscular & Electrodiagnostic Medicine evidenced-based review: use of surface electromyography in the diagnosis and study of neuromuscular disorders" (PMID 18816611). Just thought I'd throw that out there while I was reading through the ODG and ACOEM. —/Mendaliv/2¢/Δ's/ 18:52, 11 May 2009 (UTC)[reply]

Also, the ODG chapter on low back pain goes into greater depth. It cites Council on Chiropractic Guidelines and Practice Parameters 2004 draft of "Best Practices: Chiropractic Management Of Low Back Pain", which states that SEMG "is a procedure that has a certain level of popularity in the chiropractic profession, but whose use is not supported by a significant body of literature or research". As well as a few other studies, including the Haig, et al. one above. —/Mendaliv/2¢/Δ's/ 18:59, 11 May 2009 (UTC)[reply]

EMG at Mayo[edit]

Edward H. Lambert, MD, PhD (1915–2003) was already working on EMG at the Mayo Clinic in Rochester, MN in 1952 or '53 when Ervin L Schmidt, my father, got a job there as a research technician. With Dr. Lambert's medical knowledge and my father's electronics knowledge, they developed and refined what is likely the first commercially available EMG machine. Mayo, at that time at least, had no interest in producing products themselves, so my father continued to make them in his workshop through the '70s, and continued to maintain them into the late '80s or early '90s.

Early machines were constructed in a large Budd cabinet on casters. There was a Tektronics oscilloscope on the top. Early oscilloscopes had no store feature, so a Polaroid camera was mounted on the front, synchronized to photograph the scan. One custom machine had 2 oscilloscopes so the Dr./Technician could see the scan in real time.

I have no idea how to provide external verification on this, but I can provide pictures and sales literature. Nanjoa (talk) 11:10, 15 November 2009 (UTC)[reply]

AANEM monograph[edit]

doi:10.1002/mus.21180 is a monograph by the American Association of Neuromuscular and Electrodiagnostic Medicine that seems to set some standards for needle electromyography. JFW | T@lk 10:13, 28 December 2010 (UTC)[reply]

Go ahead and include it, though be sure to note that it's standards for human needle EMG - plenty of us use EMG on other species in different ways. Mokele (talk) 16:32, 28 December 2010 (UTC)[reply]

Maybe add stenosis? It's also diagnosed with EGM. —Preceding unsigned comment added by 81.241.222.3 (talk) 16:33, 23 February 2011 (UTC)[reply]

That is very unlikely. Blood vessels aren't skeletal muscles. EMGs measure the electrical activity of skeletal muscles. Dger (talk) 03:32, 24 February 2011 (UTC)[reply]

Secondary review[edit]

Great article. Electromyography is well explained to the readers by its authors. From history to procedure, everything is well explained and easy to understand. To make it even perfect, I would suggest to add pictures of the EMG graphs and its instrument. It is really a good article, adding pictures to it will make it perfect. Well done! Mickey0987 (talk) 03:40, 8 April 2013 (UTC)[reply]

Providers[edit]

I am objecting to the inclusion of physical therapists, physiatrists, and chiropractors listing as "trained professionals" as far as I know these individuals do not provide these services, nor are they professionals trained to do so. Not that non-neurologists could not be trained professionals, but that the specified groups are trained professionals makes no sense to me. Therefore I am reverting the recent edit to re-include these groups being listed as professionals here.--Xris0 (talk) 08:45, 23 August 2013 (UTC)[reply]

Objecting to content in a Wikipedia article is desirable, so long as you have references to back up the changes. The fact that it "makes no sense to [you]" is really irrelevant if the information in the article is factual. This specific topic has been clarified by the person who revised your last edit attempt, in the explanation of the changes made on 17 Sept 2013 at 02:45, but I will repost here so there is no ambiguity for future editors:
Physiatrist are board certified by AAPM&R & trained to perform EMG, PTs can be trained in EMG & certified by ABPTS, chiropractors can be certified in EMG by ABES or IBE. No certification exists for a technician to perform EMG.
It is also worth noting that, at least in the US, training in EMG (and the associated NCS) is often more extensive for physiatrists than it is for neurologists; physiatrists are required to complete at least 200 EMG/NCS to obtain their certification, whereas neurologists are required only to be "exposed" to the procedure. El piel (talk) 15:32, 21 October 2013 (UTC)[reply]

Why does "electroneuromyography" redirect here?[edit]

Not defined or mentioned in article. What is the difference exactly? 109.157.79.50 (talk) 23:49, 19 January 2015 (UTC)[reply]

I think the redirect should have gone to Electromyoneurography. I have changed it. Dger (talk) 01:15, 20 January 2015 (UTC)[reply]

Invalidated EMG contributors[edit]

Hello, based on my recent research, EMG studies can show lower peaks, activity and potentials while using medications such as Pregabalin. Based on the role of AED's, this is expected behavior.

Request: More info: Pain FROM the procedure[edit]

There are only two mentions of pain from the procedure:

  • "Some patients can find the procedure somewhat painful"
  • "Deep muscles require intramuscular wires that are intrusive and painful in order to achieve an EMG signal"

IANAD, and I understand that we don't want to terrify someone who may need this treatment, but a general expectation level is reasonable. I'd love to know it's not as bad as I've heard, but n=3 doctors and n=3 patients I've personally spoken to (WP:ORIG) are in unanimous agreement about the severity of the pain (extreme and lengthy), so some coverage is perhaps warranted. Can someone who has knowledge of pain management please make sure this topic is covered?

I understand that pain is a relative thing, but given the pre-procedure prescription for hydrocodone/paracetamol and lorazepam, and post-op diazepam, and the reports of "It's the worst pain I've ever had, and the procedure just goes on and on", I think that the current text may understate the reality.

Thanks in advance,

Riventree (talk) 01:03, 13 January 2016 (UTC)[reply]

This is more of an anecdote than scientific fact, I had it done on my leg, including some deep needle, and have no memory of long, abiding pain. That said, Erv Schmidt was sued once, the patient claiming it "felt like a cattle prod" and "threw him off the table". The attorney imperiously asked, "Do you even test your machines, Mr Schmidt?" To which he replied, "Of course I do! On my wife!" The judge dismissed the case. 75.168.74.218 (talk) 13:31, 5 October 2021 (UTC)[reply]

Technique wording[edit]

The second paragraph under the heading TECHNIQUE has the sentence

Proper needle EMG placement is very important for accurate representation of the muscle of interest, although EMG is more effective on superficial muscles as it is unable to bypass the action potentials of superficial muscles and detect deeper muscles.

Either I am not understanding what's being related (and admittedly there is much of this article that is beyond my comprehension), or there's a typo. Should the word "unable" perhaps be "able"? I really can't make sense of the sentence as it's written. ◦◦derekbd◦◦my talk◦◦ 11:05, 28 September 2021 (UTC)[reply]

Nevermind. It was too obvious for me to understand it, I guess. ◦◦derekbd◦◦my talk◦◦ 11:16, 28 September 2021 (UTC)[reply]

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