Shopping Cart
Your Cart is Empty
Quantity:
Subtotal
Taxes
Shipping
Total
There was an error with PayPalClick here to try again
CelebrateThank you for your business!You should be receiving an order confirmation from Paypal shortly.Exit Shopping Cart

Neurología Mancha-Centro

Servicio de Neurología del Area Mancha Centro - Hosp. General Mancha Centro y Hosp. General de Tomelloso

Blog de Neurologia Post New Entry

ELECTROMIOGRAMA (EMG). QUE ES Y PARA QUE SIRVE?

Posted by Enrique Botia Paniagua - Jefe de Neurología HGMC on November 9, 2015 at 11:30 AM

 

Se trata de una prueba diagnóstica neurofisiológica cuya utilidad es conocer el funcionamiento del sistema nervioso periférico (músculos y nervios).

 

El registro funcional del nervio o electroneurograma, consiste en aplicar un pequeño estímulo eléctrico sobre uno o varios puntos de un nervio para determinar cómo éste conduce la corriente eléctrica en su interior, lo que se hace mediante el registro y análisis de diferentes parámetros, el más conocido de los cuales es la velocidad de conducción.

 

La exploración se efectúa con el paciente tumbado en una camilla y comúnmente se realiza con electrodos de superficie (adheridos sobre la piel) y excepcionalmente se utilizan electrodos de aguja.

 

Los estudios de conducción nerviosa son muy útiles para diagnosticar síndromes por atrapamiento de nervios periféricos, siendo el más frecuente el síndrome del túnel carpiano, que cursa con parestesias (es decir, hormigueo y sensación de adormecimiento) en las manos, de predominio nocturno y que, en casos avanzados, puede provocar dolores en la muñeca y antebrazo, así como caída de objetos de los dedos por debilidad muscular parcial y falta de sensibilidad, dificultando tareas que requieren precisión con las manos. El síndrome del túnel carpiano es la patología más frecuentemente referida a la consulta de Neurofisiología. En las neuropatías traumáticas con lesiones graves del nervio, los estudios de conducción nerviosa permiten establecer el tipo anatómico de lesión, su localización, el pronóstico funcional y evaluar el ritmo de recuperación.




 

El registro funcional del músculo o electromiografía se realiza mediante un electrodo de aguja insertado en la musculatura a explorar, dicho electrodo es capaz de registrar la actividad eléctrica generada por la contracción muscular, transformada en imagen y sonido mediante un ordenador.

 

No se inyecta ninguna sustancia. El sangrado o aparición de hematomas por la punción son poco frecuentes. Algunos pacientes pueden presentar sensación dolorosa o pequeños hematomas tras la exploración, que desaparecerán en breve.

 

La electromiografía con aguja es útil como complemento de los estudios de conducción nerviosa en las lesiones de los nervios periféricos. Este tipo de estudios es fundamental en las radiculopatías, es decir, en la afectación de raíces nerviosas que emergen de la médula espinal a través de los agujeros de conjunción vertebrales, y cuya lesión es responsable de los síntomas en trastornos de columna, sean degenerativos o traumáticos, que consisten en dolor (cervicalgia, lumbalgia, lumbociática, dorsalgia), y trastornos sensitivo/motores en las extremidades. La electromiografía, en estos trastornos, permite localizar el nivel de la lesión (facilitando su intervención quirúrgica si procede), establecer la gravedad de la lesión, la datación de la misma, y diferenciarla de otros síndromes dolorosos (fibromialgia, atrapamiento de nervio periférico, dolor miofascial, afecciones reumáticas).




 

© Dr. Félix Peinado Postigo - Neurofisiólogo Clínico. Actualizado en Noviembre 2015
Servicio de Neurología y Neurofisiología Hospital General La Mancha Centro. 

Categories: Pruebas Neurofisiológicas, Neuromuscular

Post a Comment

Oops!

Oops, you forgot something.

Oops!

The words you entered did not match the given text. Please try again.

Already a member? Sign In

9509 Comments

Reply JamesScoli
7:28 PM on November 29, 2022 
?????????? ??????? ?? ???? ????????? ?????? ???? ??????????? 4 ? 1 ??????? ? ?????? https://homeboxx.ru/post/1 ?? ??????? ???? ? ????????
Reply nike kyrie 5
10:06 PM on November 29, 2022 
I am only writing to let you understand what a fabulous encounter our child undergone checking your blog. She realized too many pieces, which include what it's like to possess an excellent teaching mood to make many more smoothly learn about specified multifaceted things. You actually did more than visitors' expectations. I appreciate you for churning out those productive, trusted, informative and also fun guidance on that topic to Julie.
nike kyrie 5 http://www.kyrie5.org
Reply Ugotaw
10:08 PM on November 29, 2022 
metformin singapore pharmacy
Reply supreme hoodie
6:45 AM on November 30, 2022 
I'm writing to let you understand of the brilliant discovery our princess gained checking your web site. She discovered numerous things, most notably what it is like to have a very effective helping heart to get many more without hassle completely grasp specific specialized matters. You truly exceeded readers' expectations. Many thanks for coming up with the helpful, dependable, explanatory and as well as fun tips on your topic to Evelyn.
supreme hoodie http://www.supremeshoodie.com
Reply JamesScoli
10:19 AM on November 30, 2022 
?????????????? ???????? ?????????? win7 ????? ??????? ? ???? https://homeboxx.ru/post/6 ????? ?5 ????????? ??????? ???
Reply off white shoes
3:13 PM on November 30, 2022 
My spouse and i have been peaceful that Ervin could carry out his researching using the ideas he grabbed using your web page. It is now and again perplexing just to continually be giving for free thoughts which often some others could have been trying to sell. So we acknowledge we need the blog owner to appreciate for that. The type of explanations you've made, the straightforward web site menu, the friendships you make it easier to instill - it's many incredible, and it's facilitating our son and us believe that the idea is fun, and that is extremely indispensable. Thanks for everything!
off white shoes http://www.off---whiteshoes.com
Reply Brianhow
5:52 PM on November 30, 2022 
?????? ? ???? ?? ???? ??????? ???????????????? neoline x cop 9100s ???? ??? ??????? ????? ? now.ru
Reply yeezy boost 350 v2
6:08 PM on November 30, 2022 
I would like to get across my respect for your generosity for those people that should have help on that matter. Your special dedication to getting the message along appears to be extraordinarily productive and have usually empowered individuals just like me to reach their desired goals. Your new insightful report signifies a great deal a person like me and substantially more to my peers. Thanks a lot; from all of us.
yeezy boost 350 v2 http://www.adidasyeezyboost350.us.com
Reply hermes outlet
8:00 PM on November 30, 2022 
I in addition to my friends have been viewing the nice tricks from your web site while instantly came up with a terrible suspicion I had not thanked you for those tips. Most of the guys happened to be for that reason passionate to study all of them and have in effect truly been making the most of these things. Thanks for actually being simply kind and then for opting for varieties of helpful resources millions of individuals are really needing to understand about. Our sincere apologies for not saying thanks to you sooner.
hermes outlet http://www.hermesoutlets.com
Reply goyard
1:57 AM on December 1, 2022 
I simply needed to thank you very much yet again. I do not know the things that I could possibly have followed in the absence of those tips and hints shared by you about such situation. Completely was a very frustrating case in my circumstances, however , encountering your professional mode you managed it took me to jump with delight. Now i am happy for this service as well as hope that you find out what a great job you happen to be putting in instructing others via your site. I know that you've never got to know all of us.
goyard http://www.goyardbags.us.com
Reply golden goose
4:55 AM on December 1, 2022 
I'm also writing to let you be aware of of the fine experience my daughter had studying your blog. She came to find numerous things, not to mention how it is like to possess a marvelous coaching heart to make the others without difficulty thoroughly grasp various specialized things. You undoubtedly did more than our own expected results. Thanks for giving these useful, dependable, edifying and also unique guidance on that topic to Mary.
golden goose http://www.goldengoosetime.com
Reply yeezy 350
6:47 AM on December 1, 2022 
I must show my gratitude for your kindness for people that absolutely need help with this area of interest. Your very own commitment to getting the solution up and down appears to be really important and has regularly enabled others just like me to get to their goals. Your entire interesting help and advice denotes a great deal a person like me and somewhat more to my peers. Warm regards; from everyone of us.
yeezy 350 http://www.yeezy-350.us.com
Reply palm angels hoodie
9:24 AM on December 1, 2022 
I have to show my passion for your kindness supporting persons who absolutely need help with the matter. Your personal commitment to passing the solution around appears to be especially effective and has continually enabled professionals just like me to reach their pursuits. This helpful help and advice indicates much to me and a whole lot more to my office workers. Warm regards; from all of us.
palm angels hoodie http://www.palmangels.us.com
Reply kd shoes
11:07 AM on December 1, 2022 
I simply wanted to type a simple comment to appreciate you for those nice hints you are giving on this site. My rather long internet look up has at the end of the day been compensated with high-quality facts to share with my family members. I would express that many of us readers are definitely lucky to be in a notable network with many special people with valuable methods. I feel quite grateful to have used the web page and look forward to some more fabulous minutes reading here. Thanks once again for everything.
kd shoes http://www.kevindurantshoes.us.com
Reply hermes birkin
3:06 PM on December 1, 2022 
I precisely needed to thank you so much again. I do not know the things I would've worked on in the absence of the actual strategies contributed by you concerning such concern. It truly was the depressing situation for me, however , noticing the specialised mode you dealt with the issue forced me to jump with joy. Now i'm thankful for your support and then trust you recognize what a powerful job your are doing training people with the aid of your website. Probably you've never come across any of us.
hermes birkin http://www.hermesbagsonline.com
Reply Golden Goose Deluxe Brand
5:40 PM on December 1, 2022 
I would like to convey my respect for your kind-heartedness giving support to those individuals that have the need for help on in this topic. Your real commitment to getting the message all-around has been extremely effective and has usually helped those like me to realize their dreams. Your personal helpful suggestions denotes a great deal to me and further more to my office colleagues. Regards; from each one of us.
Golden Goose Deluxe Brand http://www.goldengoosedeluxebrand.us.com
Reply goyard
7:29 PM on December 1, 2022 
I'm also commenting to let you understand of the remarkable experience my daughter experienced using your web page. She even learned several things, with the inclusion of what it is like to possess a marvelous coaching spirit to have the rest with ease completely grasp various complex subject areas. You truly surpassed people's desires. Thanks for giving the warm and helpful, safe, explanatory and in addition easy tips about the topic to Ethel.
goyard http://www.goyardshandbag.com
Reply golden goose sneakers
9:41 PM on December 1, 2022 
I simply wanted to send a quick remark to thank you for the marvelous items you are posting on this site. My time-consuming internet lookup has at the end been paid with brilliant suggestions to exchange with my guests. I would claim that most of us site visitors are undeniably endowed to exist in a decent website with very many awesome individuals with insightful advice. I feel very much lucky to have come across your entire web page and look forward to plenty of more enjoyable times reading here. Thank you once again for everything.
golden goose sneakers http://www.golden-goose.us
Reply curry 6
10:54 PM on December 1, 2022 
I must show thanks to this writer for bailing me out of this type of trouble. After surfing throughout the world-wide-web and obtaining suggestions which are not beneficial, I assumed my entire life was over. Living without the presence of solutions to the issues you have solved by means of your guide is a serious case, as well as the ones that could have negatively affected my entire career if I hadn't noticed your web site. Your own personal capability and kindness in playing with every item was excellent. I'm not sure what I would've done if I had not come upon such a thing like this. I can also at this moment look ahead to my future. Thanks very much for this impressive and result oriented guide. I will not hesitate to recommend the sites to any person who desires assistance on this situation.
curry 6 http://www.curry6.net
Reply Brianhow
1:35 AM on December 2, 2022 
???? ?????? ????? neoline x cop 9100s https://firstneed.ru/post/7 ????? ??? ?????? mp4 ??????