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Hyper Smash

Wednesday, January 19, 2011

New Edition Of Aage's Book is Ready in Dec 2010.

Intraoperative Neurophysiological MonitoringOh, I can't wait to get a copy of this new edition of Aage's Intraoperative Neurophysiological Monitoring, just noticed today on Amazon that the book was released couple of weeks ago, it is available at Amazon ..........

From the Back Cover

Image of "Aage R. M\xf8ller"The third edition of this classic text again provides practical, comprehensive coverage of the anatomical and physiological basis for intraoperative neurophysiological monitoring. Written by a leading authority in the field, Dr. Aage Moller has updated this important title to again offer all the leading-edge knowledge needed to perform electrophysiological recordings in the operating room, to interpret the results, and to present the results to the surgeon. The field known as "intraoperative monitoring" has expanded rapidly to cover other uses of neurophysiology and electrophysiologic recordings during surgical operations that affect the brain, spinal cord, and other parts of the nervous system. These new areas are covered in this new edition. To better represent the content of the book and the field as it now stands, many of the chapters have been revised and new material has been added. While the general organization of the book is maintained, chapters such as monitoring of motor systems have been revised and extended with new material, including more detailed description of the anatomy and physiology of motor systems and new information about intraoperative monitoring.


http://www.amazon.com/Intraoperative-Neurophysiological-Monitoring-Aage-M%C3%B8ller/dp/1441974350/ref=dp_ob_title_bk

Product Details

  • Hardcover: 656 pages
  • Publisher: Springer; 3rd Edition. 
  • edition (December 10, 2010)
  • Language: English
  • ISBN-10: 1441974350
  • ISBN-13: 978-1441974358

Friday, October 22, 2010

168.4 Billion per Year to treat Obesity?. About 16.5% of America's Medical Spending?.

Obesity is eating up the total medical and health care spending of US, a whopping 16.5% (168.4 Billion) just to treat Obesity alone?.   Ref: Cardiovascularbusiness.com 
Using instrumental variables (IV) to estimate the impact of obesity on medical costs, researchers found that the causal effect of obesity on medical expenditures is four times higher than when non-IV models are used, indicating that previous literature has underestimated the impact of obesity on medical costs, according to a National Bureau of Economic Research working paper published this month. The report estimates the annual cost of treating obesity-related illnesses annually in the U.S. is $168.4 billion, or 16.5 percent of medical spending. Previous studies have underestimated this cost and reported that obesity is only responsible for 9.1 percent of medical spending.

Sunday, July 18, 2010

Cauda Equina and Conus Medullaris Syndromes

Interesting Read!..

Cauda Equina and Conus Medullaris Syndromes

Author: Segun T Dawodu, MD, JD, MBA, FAAPMR, FAANEM, CIME, DipMI(RCSed),

Introduction


Background


The spinal cord tapers and ends at the level between the first and second lumbar vertebrae in an average adult. The most distal bulbous part of the spinal cord is called the conus medullaris, and its tapering end continues as the filum terminale. The upper border of the conus medullaris is often not well defined. Distal to this end of the spinal cord is a collection of nerve roots, which are horsetail-like in appearance and hence called the cauda equina (Latin for horse's tail). These nerve roots constitute the anatomic connection between the central nervous system (CNS) and the peripheral nervous system (PNS). They are arranged anatomically according to the spinal segments from which they originated and are within the cerebrospinal fluid (CSF) in the subarachnoid space with the dural sac ending at the level of second sacral vertebra.

Thursday, June 24, 2010


Antoun Koht, M.D.

Anesthesiologists should re-evaluate and re-ignite their interest in neurophysiologic monitoring.
Their active involvement could lead to improved neuromonitoring today and allow
for possible supervision in the future.

Currently, neurophysiologic monitoring is conducted by trained technologists capable of
operating the neuromonitoring machine, connecting wires, obtaining reproducible signals,
and identifying signal changes; and they should be able to troubleshoot technical issues contributing to signal changes. However, diagnosis of the etiology of signal changes may be difficult
and outside the realm of their expertise. In order to elucidate signal change etiology, it is necessary to examine all potential causative factors, including rapidly checking monitoring circuit integrity, evaluating patient position, optimizing physiologic status, eliminating pharmacologic contributions, and correlating surgical maneuvers with signal changes.

Saturday, May 29, 2010

ABRET's Policy on ABNM/CNIM Exams: Unfriendly and hindering Prospective Specialists?.

I recently received an email from one of our neuromonitoring colleagues with a serious concern about ABRET's policy on ABNM exams, I hope the ABRET officials read this blog article and also listen to practitioners in the field while drafting policies. 
**********************************************************
Date: Tue, 25 May 2010 12:08:58 -0700
Subject: need your advice, thanks
From: yingliu.lin@gmail.com


To: edu@drmuni.com
Dear Dr. Muni
My name is pearl, I am a regular reader for your neuromonitoring blog, which really impressed me. I read your article about the critical comment on ABRET's new policy changes on the CNIM requirement, and I am so happy to see the good outcome.


Now I am bothered by ABNM’s new policy changes on applicant’s eligibility. Beginning Aug, 2010, the new policy requires all applicants to provide a statement from a qualifying, supervising neurophysiologist. The new policy defines “a qualifying supervising neurophysiologist is either and individual with board certification from the American board of neurophysiologic monitoring (I think the number of these people is less than 200 in US) ora licensed physician who is board certified in neurology by the American board of psychiatry and neurology and who has fellowship training in clinical neurophysiology including intraoperative neurophysiological monitoring (I don’t know how many people would be qualified for this criteria, even less?), which means if one is not trained by any of these qualifying neurophysiologists, he or she will not get a statement and lose the opportunity to take the exam. Another potential problem is that the exam itself won’t be the major factor to decide whether or not one is competent to be a certificated neurophysiologist because subjective opinions based on personal motives (something like competition) could block a competent person’s opportunity taking the exam. I personally think this is not like a job hunting situation, in which the references recommendation should play the important role in judging a person’s qualification. This is a testing, as long as a candidate meets all of the objective requirements, such as three years experience in the field of neuromonitoring, completing 300 cases, and Ph.D degree in neurophysiology or neuroscience, shouldn’t the exam itself be the first to talk? With the IOM growing so fast, younger qualified people in this field should be encouraged to become board certificated experts, instead of trying to restrict people taking the exam by adding some crap requirements for whatever reasons or purposes. This new change gives a small number of people privilege to determine whether or not one has chance to take the exam even if he or she meets all objective requirements, which undermines the fair competition.


I think you understand my points about this issue, may I know your thoughts, and what is your suggestion if one can not get a statement from a neurophysiologist for the crap reasons?


Thanks for your time; I am looking forward to hearing from you.


All the best
pearl
**************************************************************
This issue was lingering in my mind for quite sometime, when Pearl wrote to me the above e-mail, I realized it is time to make a point on my blog, like Pearl few of my other colleagues who are veterans in this field of neuromonitoring also told me about these policies are rather callous, my friends on the phone expressed their concern about the shrewd and unfriendly policies of ABRET that is going to keep the qualified PhDs away and deprive the neuromonitoring field with only handful of ABNMs?. 
ABNM Exams policies are redundant and mundane , further appear to make the candidate miserable with too many useless requirements, in addition to those mundane policies, the exam board seems to fail many candidates, some very talented PhDs and MDs have been failed repeatedly, simply reflecting the motive of ABRET board to make more money out of the candidates in fees?, if this continues, I sincerely hope  that ABRET is going to be scrutinized and comes under the  radar of US exams regulatory boards.  This current article I am writing is mostly to talk about how their policies are framed to make the process of exam cumbersome and ridiculous.
Several months ago, ABRET reversed certain policies on CNIM following wide criticism of their CNIM exam requirements , they made it more realistic, appealing and useful to CNIM seekers.

This time, it is about ABNM exams, the number of ABNM certified neurophysiologists/neurologists are very few in US, as of 2008 there were only 128 D-ABNM. And, as per the latest numbers listed on ABNM website, there are only 144 diplomats received the D-ABNM. If the website is not updated in the last two years, it might be another 20-30 candidates in this last two years, adding to be around 175 or 180 diplomats. This is most likely the latest number, this is in all reality is an abysmal count considering the demand and need to have many such highly trained specialists. There is no other country or organization in US or outside to award ABNM, which means that the number quoted above is a global  ABNM, there are no such ABNM outside US. And, not even in UK or Canada is there such ABNM diplomats?.
Isn't this irony that an organization created to support, promote and safeguard the the field of modern patient care is blocking the prospects of so many PhDs. What is disturbing is the requirements from PhD/MDs to appear for exam, as you will notice in the accompanied E-mail message from Pearl,  in order to submit ABNM exam, a highly trained PhD holder with several years of experience in academia or industry, and possibly the PhDs would have had faculty experience, regardless of such high qualification and expertise, like a school student they have to get approval from a board certified Surgeon or a neurophysiologist with a D-ABNM. The application requirement is one of these must sign the application and recommend the candidate, this is ridiculous, ABRETs policy sounds like running  kinder garden school, does not look like a advanced medical care providers certification exam.
Why would someone with a PhD and tremendous experience have to stoop to a fellow neurophysiologist with a DBANM or a surgeon to file exam application, why?. Does this make any sense at all??. I can say that my neurophysiology/neuromonitoring CEO or supervisor is a Jerk and stupid, and may be the surgeon I work with do not have expert knowledge in brain and spine, or nervous system. Even neurologists do not have special and advanced knowledge as much as a Neurophysiologist, what a crap is this that a PhD has to go and get his application approved, this policy has to change.
ABRET and ABNM must realize that there are shortcomings in the number of D-ABNM, but there are also other issues like the ABNM's can't bill or claim cpt codes like an M.D can do?,  this is a terrible policy too!.  How many neurologists can set up a neuromonitoring test, prepare the patient, set up protocol, execute an appropriate test, monitor actively, interpret and analyze the data instantly and warn the surgeon about changes?. How many neurologists and spine surgeons and other surgeons really know or have comprehensive knowledge about neurophysiology, the intricacies of evoked potentials?. The clinical training and knowledge is not going to be of much use inside the OR, unless they were trained by a Neurophysiologist as to how to monitor and interpret the signals in the OR.
Hope the ABRET and ASNM look into these and do not bow down to the Medical Association, the neuromonitoring field is developed by decades of hard work and dedication of many neuroscientists and researchers in the field, after decades of establishing this field and make it to applicable in the clinical set up, the medical association and jobless clinicians want to steal away neuromonitoring field with their crap policies and subjugation of the monitoring professionals in the name of medical regulations deliberately designed to keep the MDs running the show?.
ABRET has to be thoughtful about their policies besides making PhDs in Neurophysiology and PhDs from related neuroscience fields with D-ABNM should be able to bill like an MD, including the medicare policies where an M.D oversight is currently a requirement, will the ABRET wake up and fight on these issues, as well as keep the exam policies user friendly and approachable for PhDs with experience in neuromonitoring?
This modern and growing health care field needs more doctorate level providers, especially those with PhD in Neurophysiology, or PhDs in allied field with extensive training in Neurophysiology.

Monday, May 17, 2010

American Academy of Neurology-Policy on Intraoperative Neuromonitoring!

The American Academy of Neurology has put up this policy on Intraoperative Neuromonitoring, though old but it is interesting note some observations like the following multicenter evaluation study on SSEPs, it is an impressive result as far as SSEPs concerned.
2. Multicenter Data in Spinal Surgeries
An extensive multicenter study conducted in 1995 demonstrated that IOM using SEP reduced the
risk of paraplegia by 60% in spinal surgeries (Nuwer et al., 1995). The incidence of false
negative cases, wherein an operative complication occurred without having been detected by the
monitoring procedure, was small: 0.06% (Nuwer et al., 1995).

Friday, April 16, 2010

Pedicle Screws & Triggered EMGs!

Spine (Phila Pa 1976). 2010 Jan 15;35(2):E43-8.

Usefulness of electromyography compared to computed tomography scans in pedicle screw placement.
Duffy MF, Phillips JH, Knapp DR, Herrera-Soto JA.
STUDY DESIGN: This is a retrospective analysis of 30 pediatric deformity surgeries. OBJECTIVE: The purpose of this study was to evaluate the accuracy of neuromonitoring in comparison to postoperative computed tomography scans for pedicle screw position. SUMMARY OF BACKGROUND DATA: Triggered electromyography potentials in aiding the placement of lumbar pedicle screws are considered useful; however, this method is less accepted in thoracic screw placement. METHODS: Thirty pediatric deformity surgeries were reviewed. All screws were placed using fluoroscopic assistance. Electromyography data were obtained on all screws. Every patient underwent postoperative computed tomography scanning. Computed tomography scans were assessed by all authors, and each screw was classified. Sensitivity, specificity, negative predictive value, and likelihood ratios were determined for the cut-off value of an electromyography > or =6 mA. RESULTS: A total of 329 screws were reviewed. No complications occurred. An overall accuracy of 93% was obtained. No retained screw had greater than 2 mm medial pedicle wall breach. Nine screws were removed intraoperatively due to medial breach. The mean electromyography potential for all classes of screws was not statistically different (P > 0.1). The negative predictive value of the test was 0.92 in the thoracic spine and 0.93 in the lumbar spine. The negative likelihood ratios were 0.96 and 0.35 for the thoracic and lumbar spines respectively, and the positive likelihood ratio was 1.4 for the thoracic spine and 12.5 for the lumbar spine. CONCLUSION: Thoracic and lumbar pedicle screws are safe surgical options in the treatment of pediatric scoliosis. Comparison of electromyography potentials and postoperative computed tomography scans showed no statistically significant difference for all classes of screws. The likelihood ratio for electromyography testing was more clinically significant in the lumbar spine. A triggered electromyography value greater than or equal to 6 mA has a high likelihood of that screw being in the "safe zone." However, there is no true electromyography cut-off value that guarantees accurate placement and avoidance of neurologic injury.

New Guidlines for TCD!

J Neuroimaging. 2010 Mar 17. [Epub ahead of print]
American Society of Neurophysiologic Monitoring and American Society of Neuroimaging Joint Guidelines for Transcranial Doppler Ultrasonic Monitoring.

Edmonds HL Jr, Isley MR, Sloan TB, Alexandrov AV, Razumovsky AY.
The American Society of Neurophysiologic Monitoring (ASNM) and American Society of Neuroimaging (ASN) Guidelines Committees formed a joint task force and developed guidelines to assist in the use of transcranial Doppler (TCD) monitoring in the surgical and intensive care settings. Specifically, these guidelines: (1) delineate the objectives of TCD monitoring; (2) characterize the responsibilities and behaviors of the sonographer during monitoring; (3) describe methodological and ethical issues uniquely relevant to monitoring. The ASNM and ASN strongly support the positions that (1) acquisition and interpretation of intraoperative TCD ultrasonograms be performed by qualified individuals, (2) service providers define their diagnostic criteria and develop on-going self-validation programs of these performance criteria in their practices. We agree with the guidelines of other professional societies regarding the technical and professional qualifications of individuals responsible for TCD signal acquisition and interpretation (Class III evidence, Type C recommendation). On the basis of current clinical literature and scientific evidence, TCD monitoring is an established monitoring modality for the: (1) assessment of cerebral vasomotor reactivity and autoregulation; (2) documentation of the circle of Willis functional status; (3) identification of cerebral hypo- and hyperperfusion, recanalization and re-occlusion; and (4) detection of cerebral emboli (Class II and III evidence, Type B recommendation). J Neuroimaging 2010;XX:1-7.

Thursday, March 18, 2010

How Do You Come Across to Patients?

Health Care providers service organization (HFSO) has this advice for you, yes they are right.

How Do You Come Across to Patients?

What patients think of you is just as important as the quality of the care you provide. Patients’ perception of your interest and compassion determines how satisfied they are with the care they receive. And satisfied patients are less likely to sue.

To make sure patients see you in the best possible light, be friendly, but respectful. Don’t call your patient by his first name, for example, unless he asks you to. If you’re a physical therapist, athletic trainer, massage therapist, or other healthcare professional where therapeutic touch is crucial, you’ll want to avoid being overly friendly.

You don’t want patients to misconstrue therapeutic touch as personal. If patients do share something of a personal nature with you— such as the fact that they’re going through a divorce—bring it back to the matter at hand: their health. Ask how the stress might be affecting their response to therapy.

Being professional, however, doesn’t mean that you need to appear rude, condescending, or disinterested. Despite the pressures of managed care, don’t rush patients through their visit. Listen to their questions and concerns attentively: Something seemingly trivial may be important to them and may even clue you into an important aspect of their care.

Remember that some patients, particularly those who don’t feel well, have trouble processing information in times of stress. They won’t hear what you say if they feel intimidated, or get the sense that you’re not addressing their concerns. Your friendly and professional demeanor will help them relax, meaning that they’ll be more likely to understand your instructions and less likely to blame you if something goes wrong with their care.

Saturday, February 27, 2010

Society for Neuroscience & News!

SFN is fighting for better funding and support for Neuroscience and allied research fields. Join hands with sfn, it is for a good cause. Bush govt destroyed the academic and research atmosphere in US cutting budget and shrinking the funds to overall research, I hope with President Obama in office, our hope is that he understands scientific research is the backbone of a nation's growth and prosperity.
News
Attend SfN Capitol Hill Day to Build Support for Research; More Recovery Act Stories Needed
Join your colleagues in Washington for the 2010 SfN Capitol Hill Day on March 25 to meet your legislators in person and share the story of your research and its health and economic benefits. Your voice is needed to support the scientific community's request of $35 billion for NIH and $7.4 billion for NSF in FY2011. Also key to this year's advocacy efforts are the new "In the Lab: Recovery Act Stories", which illustrate how Recovery Act-funded research is improving health, while contributing to the economy. Visit the SfN Recovery Act page for additional resources and to log-in and submit your own story today! Contact advocacy@sfn.org with questions.

Intrnational Congress of Clinical Neurophysiology ICCN 2010, Kobe, Japan


http://www.iccn2010kobe.com/

Clinical Neurophysiology, a facelift to EEG & EP journals!

As of January 1999, The journal Electroencephalography and Clinical Neurophysiology, and its two sections Electromyography and Motor Control and Evoked Clinical Neurophysiology on ScienceDirect(Opens new window)Potentials have amalgamated to become this journal - Clinical Neurophysiology Clinical Neurophysiology is the official journal of the International Federation of Clinical Neurophysiology, Italian Clinical ...
click here for full Aims & Scope

Intraoperative Neurophysiological Monitoring, by Leon K Liem

eMedicine
Liem's article on "Intraoperative Neurophysiological
monitoring", a good place for starters to know the basics of
neuromonitoring.  
Author: Leon K Liem, MD, Assistant Clinical Professor, Division of Neurological Surgery, University of Hawaii, John Burns School of Medicine

Contributor Information and Disclosures

Updated: Feb 11, 2010
Introduction

This article provides an overview of the various neurophysiological monitoring techniques used intraoperatively.
Intraoperative neurophysiological monitoring has been utilized in attempts to minimize neurological morbidity from operative manipulations. The goal of such monitoring is to identify changes in brain, spinal cord, and peripheral nerve function prior to irreversible damage. Intraoperative monitoring also has been effective in localizing anatomical structures, including peripheral nerves and sensorimotor cortex, which helps guide the surgeon during dissection.
Evoked potential monitoring includes somatosensory evoked potentials (SSEP), brainstem auditory evoked potentials (BAEP), motor evoked potentials (MEP), and visual evoked potentials (VEP). Electromyography (EMG) also is used extensively during operative cases. Scalp electroencephalography (EEG) provides data for analysis in SSEP, BAEP, and VEP. Scalp EEG also can be used to monitor cerebral function during carotid or other vascular surgery. In addition, EEG recorded directly from the pial surface, or electrocorticography (ECoG), is used to help determine resection margins for epilepsy surgery, and to monitor for seizures during electrical stimulation of the brain carried out while mapping cortical function. http://emedicine.medscape.com/article/1137763-overview

ABNM- Latest Schedules of Exams

American Board of
Neurophysiologic Monitoring


Next Written Exams

Certification Examination in Neurophysiologic Monitoring - Part I - Written

Application Deadline
Examination Date
12/31/2009 2/6/2010 - 2/20/2010
6/28/20108/7/2010-8/21/2010

Next Oral Exams

Certification Examination in Neurophysiologic Monitoring - Part II - Oral

Application Deadline
Examination Date
Location
4/5/20104/25/2010Nashville, TN only
10/4/201010/24/2010Chicago, IL only

For information about registering for these tests
please contact the Professional Testing Corporationor email us at info@abnm.info.

Sunday, December 20, 2009

400,000 Lumbar/Cervical Procedures in 2008, Expected to go up to 650,000/year by 2015?

News about increasing number of Lumbar and Cervical spine procedures in US is going around all over the net, I am not sure if the
neuromonitoring and apsiring future spine specialists read this story. It is
interesting to note there are about 400,000 surgeries performed during 2008 alone and the number is projected to be about 650,000 by 2015 as the aging population increases in number!.

The data analysis was carried out by a company called Global Markets Direct (Global Data), check the link but be aware that you CANNO'T find or read the news report at their site, as the data is sold for $3500 or so?.

But, there are numerous reports providing information from the original Global markets data?.

Laura Woods article at the research and markets is the best place to start if you
are interested to learn more about this news.

Research and Markets: US Spinal Surgery Devices Market: Increasing Procedures to Drive Growth(http://www.researchandmarkets.com/research/504cb6/us_spinal_surgery) has announced the addition of GlobalData 's new report
"
US Spinal Surgery Devices Market: Increasing Procedures
to Drive Growth
" to their offering.
This new report finds
that the increasing incidence of degenerative disc disease and increasing aging population in the
US will provide huge growth and investment opportunities for the Spinal surgery market in the US. "US Spinal Surgery Devices Market: Increasing Procedures to Drive Growth", highlights this growing aging population as one of the key market drivers for the spinal surgery market in the US.



Wednesday, November 25, 2009

Significant Grant Allows University Of Canterbury To Investigate Prevention Of Hearing Loss

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Contributor: Voxy News Engine

The Oticon Foundation in New Zealand has today awarded a research grant of almost $350,000 to the University of Canterbury to investigate the prevention of hearing loss during ear surgery.

"This is a major financial commitment to a substantial research project by the University of Canterbury's Department of Communication Disorders into methods to monitor hearing and reduce hearing loss during otologic surgery - or ear micro-surgery," says Tim Olphert, Chairman to the Trustees, of The Oticon Foundation in New Zealand.

"The Oticon Foundation has reviewed the proposed research headed by Dr Greg O'Beirne( PhD) and Mr Phil Bird, (MBChB, FRACS) and believes it is of such significant importance internationally that it is providing the $340,895.53 needed to fund the three year project."

Monday, November 9, 2009

An International Survey on Neuromonitoring?


Neuromonitoring is quite extensively utilized in US, ask both neurosurgeons and Orthopedic surgeons you work, they will tell you how useful this modern tool to them to complete their surgery safely and comfortably, that is what the surgeons I involve with tell me and they are pretty top notch in their field, so imagine what the surgeons nationwide would think about IONM?.

Internationally, IOM is not that widely practiced, there is no data available to ascertain either on the internet or offline on books that can provide information of IOM outside US. There could be various reasons why it is not that common as in US, may be the cost of using IOM, availability of the technology, trained professionals or experts readily available to employ them and numerous other factors may play a role. I have a list of IOM companies in US as well as a stat (from society websites) on trained professionals in US documented in my Neuromonitoringcompanies Blog. This report published in the latest neurosurgery focus journal is perhaps the first of this kind I have noticed recently, a German group did a survey among neurosurgeons in several countries regarding their usage of IOM services. Though the number of instituitions, number of surgeons and patients surveyed is smaller, the number of countries participated also is very small for this kind of survey, I would not make a conclusion based on this study but this certainly a good idea to conduct a survey and it has to be more comprehensive.
Neurosurg Focus. 2009 Oct;27(4):E2.

Neurophysiological intraoperative monitoring in neurosurgery: aid or handicap? An international survey.

Department of Neurosurgery, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany. mario.cabraja@charite.de
OBJECT: Neurophysiological intraoperative monitoring (IOM) is regarded as a useful tool to provide information about physiological changes during surgery in eloquent areas of the nervous system, to increase safety and reduce morbidity. Nevertheless, numerous older studies report that very few patients benefit from IOM, and that there are high rates of false-positive and false-negative changes of neurophysiological parameters during surgery. There is an ongoing discussion about the effectiveness of neurophysiological IOM. This questionnaire study was performed to evaluate the attitude of neurosurgeons toward neurophysiological IOM and the availability of this tool. METHODS: One hundred fifty neurosurgeons from 60 institutions in 16 countries were asked to answer anonymously a questionnaire with 11 questions. The questionnaire covered aspects of personal experience, the neurosurgical institution, and availability of neurophysiological IOM as well as asking the surgeon's opinion of the procedure. RESULTS: One hundred nine questionnaires were returned (73%). Seven questionnaires were excluded because of failure to complete the form correctly or completely, leaving 102 respondents from 44 institutions in 16 countries in the study; 79.5% of the included institutions provided neurophysiological IOM. Young neurosurgeons did not put more trust in IOM than experienced neurosurgeons. With growing IOM experience, surgeons seem to allow less influence of the findings on the course of their operation. At large institutions in which > 1500 operations per year are done, IOM is performed by the neurosurgeons themselves in most cases. In institutions with fewer operations, the IOM team consists mostly of nonneurosurgeons. Regardless of the availability of neurophysiological IOM, all surgeons stated that IOM is gaining increasing importance. CONCLUSIONS: Neurophysiological IOM represents an established tool in neurosurgery. Although the importance of IOM is emphasized by the majority of neurosurgeons, the relevance of this tool to the course of the operation changes with increasing neurophysiological IOM experience.

Thursday, October 29, 2009

ASNM Society Meeting, ClearWater Beach, Florida!


If you are attending or planning to attend ASNM winter meeting to be held in Clearwater Beach, Florida,
please note the change in dates.
Here is the e-mail from the committee.

Subject: ASNM IMPORTANT DATE CHANGE--- Winter 2010 Symposium
From: "ASNM Registration"
Date: Thu, October 29, 2009 7:05 am
To:
Priority: Normal
Options: View Full Header

View Printable Version Download this as a file View as plain text


Dear ASNM Members,

Please make NOTE: the dates of our 2010 Winter Symposium have been changed. The NEW dates are Friday, March 5th and Saturday, March 6th. We would appreciate it if you could "spread the word" to your colleagues about the change. More information will follow shortly.

We apologize for any inconvenience this may have caused.

---Best Regards,
The Winter Symposium Committee

Check the ASNM site for more information about the winter meeting
ASNM Winter Symposia – Hotel booking
ASNM Winter Symposium 2010 Clearwater Beach, FL March 5th-6th Hilton Clearwater Beach Spa and Resort Note: Category 1 AMA CMEs offered.
ASNM Winter Symposia – Vendor Registration
ASNM Winter Symposium 2010 Clearwater Beach, FL March 5th-6th Hilton Clearwater Beach Spa and Resort Note: Category 1 AMA CMEs offered.

CNIM and ABNM
Exam Archives 


ABRET Exam Schedule Dates

Exam Schedule Dates for 2008 - 2009

From ABRET's Website:-

Written
ExaminationDate(s)LocationDeadline
EEG & CLTM Written ExamsOctober 4-18, 2008LaserGrade Sites08/15/2008
EP & CNIM Written ExamsFebruary 28-March 14, 2009LaserGrade Sites01/15/2009
EEG & CLTM Written ExamsMay 2-16, 2009LaserGrade Sites03/15/2009
EP & CNIM Written ExamsAugust 1-15, 2009LaserGrade Sites06/15/2009
EEG & CLTM Written ExamsOctober 3-17, 2009LaserGrade Sites08/15/2009
Orals
ExaminationDate(s)LocationDeadline
EEG & EP Oral ExamsOctober 25-26, 2008Pittsburgh, PA08/26/2008
EEG & EP Oral ExamsFebruary 21-22, 2009Atlanta, GA12/22/2008
EEG & EP Oral ExamsApril 18-19, 2009Milwaukee, WI02/19/2009
EEG & EP Oral ExamsAugust 8-9, 2009Phoenix, AZ06/09/2009
EEG & EP Oral ExamsOctober 24 & 25, 2009Detroit, MI08/25/2009

Monday, August 24, 2009

NeuroMonitoring Cuts Stroke Risk of Carotid Surgery?

In this Elsevier medical news, Kerri writes about how utilizing neuromonitoring could cut the risks of stroke during carotid surgery, this is not a new report, but for those who missed this news article,
you can read it here.

Neuromonitoring Cuts Stroke Risk Of Carotid Surgery
BY KERRI WACHTER
Elsevier Global Medical News

ORLANDO — Targeted neuromonitoring can dramatically reduce stroke complications during and after carotid endarterectomy, according to one expert speaking at the annual meeting of the American Society of Neuroimaging. “A targeted monitoring strategy— and I stress the word targeted— has virtually eliminated intraoperative stroke and stroke due to postoperative carotid thrombosis in our unit,” said A. Ross Naylor, M.D., professor of vascular surgery at the University of Leicester in England. Carotid endarterectomy (CEA) carries a small but important
risk of stroke for both symptomatic and asymptomatic patients. Although neuromonitoring can be an effective way to minimize the risks associated with carotid endarterectomy,
here is “more to monitoring than deciding who needs a bit of plastic tubing shoved into their artery. You have to ask the right questions, and then you’ll start to get the right answers.” Dr. Naylor reported that his team uses continuous transcranial Doppler (TCD) sonography
and completion angioscopy for intraoperative monitoring. “We ask very limited questions
of transcranial Doppler,” he said. The group tries to maintain a mean middle cerebral artery velocity greater than 15 cm/sec. Hemodynamic failure is usually not the problem. “I have
seen over 1,200-1,500 carotids now in our unit, and I cannot ascribe hemodynamic failure to
any patient.” Technical errors and thrombosis are the more likely culprits. TCD reveals
shunt malfunctions and “is the only method capable of diagnosing on-table thrombosis,” he said.
Dr. Naylor and his team use ....
http://www.vascularweb.org/professionals/vascular_specialist/vol1/number1/pdf/VN_1005.pdf

Thursday, August 6, 2009

New on PubMed:

Investigation of the regeneration potential of the recurrent laryngeal nerve (RLN) after compression injury, using neuromonitoring.

Department of General and Visceral Surgery, Hospital of the Johannes Gutenberg-University Mainz, Langenbeckstr. 1, D-55131, Mainz, Germany. moskalenko@tut.by

INTRODUCTION:

The aim of this study was to investigate the regeneration potential of RLN after the compression of the nerve, without disrupting its continuity, using neuromonitoring.

METHODS: In the first operation, the RLN and nervus vagus of adult Goettingen minipigs were dissected free, and the neuromonitoring parameters (amplitude, threshold and lag time of signal) were measured. Injury of the RLN was induced using a "bulldog" clamp. When the signal was no longer detectable, after the 15 min regeneration phase, the operation was finished. The neuromonitoring studies (see above) were repeated in a second operation 6 months later. RESULTS: (1) After the first operation, acute clamping of the RLN led to a reduction in the amplitude of the neuromonitoring signal; the lag time and the threshold of signal remained. Complete restitution of the signal was observed during the first regeneration phase. Repeated clamping led to complete disappearance of the signal. (2) During the second operation, i.e., after 6 months of regeneration, the neuromonitoring signals of both RLN and nervus vagus were detected in 93% of the GMP. No statistical differences (p = 0.17) were noticed between the amplitude of the RLN before the nerve injury (first operation) and after nerve regeneration (second operation). A significant increase in the lag time (p <>

PMID: 18751999 [PubMed - indexed for MEDLINE]