Acceleromyography vs. electromyography: an ipsilateral comparison of the indirectly evoked neuromuscular response to train‐of‐four stimulation

Kopman, Aaron F.; Chin, Wanda A.; Cyriac, J.

doi:10.1111/j.1399-6576.2005.00643.x

Cited by 58 publications

(77 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…ONSET T1 5%, the first train-of-four (TOF) response (T1) diminished by 95%; OFFSET T1 25%, the recovery of T1 to 25% of the initial calibration; OFFSET TOF 0.9, recovery of T4/T1 ratio of 0.90. studies have shown that applying a slight elastic preload to the thumb can reduce the extent of the 'reverse fade'. 8,9 A recent study investigating the role of the 'elastic recoil' obtained with the Hand Adapter has shown that such a device can improve the precision of AMG. Unfortunately, the average control TOF ratios increased from 1.07 (no preload) to 1.13 (range between 1.01 and 1.23) with the Hand Adapter, thereby increasing the bias in relation to MMG.…”

Section: Initial Baseline Valuesmentioning

confidence: 99%

“…The TOF-Guard/TOFWatch arm board (Organon, Oss, The Netherlands) fixes and protects the hand from external disturbances and it is suggested that it is used with an elastic band to provide a modest preload to the thumb (<150 g). 8,9 Despite the increased measurement stability provided by this device, it is too cumbersome to be adapted to most clinical requirements. The Hand Adapter (Organon), a small thumb preload device, ensures that the thumb does not touch the palm during adductor pollicis contractions.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance of acceleromyography with a short and light TOF-tube compared with mechanomyography

Dubois

Bel

Jamart

et al. 2014

European Journal of Anaesthesiology

View full text Add to dashboard Cite

show abstract

Section: Initial Baseline Valuesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance of acceleromyography with a short and light TOF-tube compared with mechanomyography

Dubois

Bel

Jamart

et al. 2014

European Journal of Anaesthesiology

View full text Add to dashboard Cite

show abstract

“…19 The ba se li ne AMG-TOF ra ti os va ri ed wi dely [110.8 (91-149)] in the cur rent study, si mi lar to pre vi o us stu di es. 11,16,17,20 Even tho ugh the ba se li ne TOF ra ti os we re >1 in 71 (58.1%) pa ti ents, they were <1 in 29 (23.7%) pa ti ents. Thus, if PORC had been con si de red as a raw TOF ra ti o less than 1 in this study, five pa ti ents wo uld ha ve be en er ro ne o usly ac cep ted as ha ving PORC (po si ti ve pre dic ti ve valu e; 92%).…”

Section: Discussionmentioning

confidence: 94%

High Incidence of Residual Curarization After Rocuronium Despite Administration of Neostigmine

Baykara¹,

Hoşten²,

Özdamar³

et al. 2010

Turkiye Klinikleri J Med Sci

View full text Add to dashboard Cite

A AB BS S T TR RA AC CT T O Ob bj je ec ct ti iv ve e: : The aim of the study was to in ves ti ga te the in ci den ce of pos to pe ra ti ve re sidu al curarization (PORC) af ter ro cu ro ni um ad mi nis tra ti on using nor ma li zed ac ce le rom yog rap hic (AMG) tra in-of-fo ur (TOF) ra ti os. M Ma at te er ri ia al l a an nd d M Me et t h ho od ds s: : Du ring pro po fol-fen tanyl-nit ro us oxi de anest he si a, ne u ro mus cu lar block was mo ni to red using ac ce le rom yog raphy met hod in 130 pa ti ents. A TOF ra ti o me a su red at the end of con trol sti mu la ti on was re cor ded as a ba se li ne TOF va lu e. Neu ro mus cu lar block was in du ced with ro cu ro ni um 0.6 mg.kg -1 and an ta go ni zed with ne os tig mi ne 40 μg.kg -1 at the end of anest he si a. Im me di a tely af ter the pa ti ents' ar ri val in the pos ta nest he tic ca re unit (PA CU), TOF ra ti os we re me a su red and nor ma li zed (i.e., di vi ding the raw TOF ra ti o by the ba seli ne TOF va lu e). The in ci den ces of PORC we re de ter mi ned ac cor ding to thre e dif fe rent TOF threshold va lu es: Nor ma li zed AMG-TOF ra ti o <1; raw AMG-TOF ra ti o <1; and raw AMG-TOF ra ti o < 0.9. R Re e s su ul lt ts s: : The ba se li ne AMG TOF ra ti os va ri ed wi dely 110.8 (91-149) among pa ti ents. Con si dering nor ma li zed AMG-TOF ra ti os <1 as PORC, 77 (63.1%) pa ti ents had PORC on ar ri val to the PA -CU. Sig ni fi cantly fe wer pa ti ents had raw TOF ra ti os < 0.9 (39 sub jects, 31.9%), and <1 (67 sub jects, 54.9%) than who se nor ma li zed TOF ra ti os <1 (77 sub jects, 63.1 %) (p< 0.05). Although not statistically significant, the when it was determined using normalized AMG-TOF ratios rather than using raw AMG-TOF ratios (18.3% and 10%, respectively). C Co on nc c l lu u s si i o on n: : Des pi te re ver sal of ne u ro muscu lar block with ne os tig mi ne, the in ci den ce of PORC is very high af ter ro cu ro ni um ad mi nis tra tion.K Ke ey y W Wo or rd ds s: : Mo ni to ring, physi o lo gic; ro cu ro ni um; comp li ca ti ons; ne u ro mus cu lar bloc ka de Ö ÖZ ZE ET T A Am ma aç ç: : Bu ça lış ma da ro ku ron yum son ra sı pos to pe ra tif re zi dü el kü ra ri zas yon (PORK) sık lı ğı -nın nor mal leş ti ril miş ak se le rom yog ra fik (AMG) tra in-of-fo ur (TOF) oran la rı kul la nı la rak be lir lenme si amaç lan mış tır. G Ge e r re eç ç v ve e Y Yö ön n t te em ml le er r: : Pro po fol-fen ta nil-nit roz ok sit anes te zi si sı ra sın da, 130 has ta da nö ro müs kü ler blok ak se le rom yog ra fi yön te miy le mo ni to ri ze edil di. Kon trol sti mü lasyo nu son ra sın da öl çü len TOF ora nı ba zal TOF de ğe ri ola rak ka bul edil di. Nö ro müs kü ler blok 0.6 mg.kg -1 ro ku ron yum la sağ lan dı ve anes te zi nin so nun da 40 μg.kg -1 ne os tig min le an ta go ni ze edil di. Has ta lar pos to pe ra tif der len me oda sı na gel dik ten he men son ra TOF oran la rı öl çül dü ve nor mal leş -ti ril di (ham TOF ora nı nın ba zal TOF de ğe ri ne bö lün me siy le). PORK sık lı ğı üç fark lı TOF eşik değe ri ne gö re be lir l...

show abstract

“…Accuracy is dependent on the mass of the acceleromyographic probe. In a recent study, Kopman et al 43 showed that the addition of an elastic preload to the thumb decreased the TOF variability without any effect on the relationship between twitch height and the TOFratio. At present, AMG is the most accurate and reliable monitoring method commercially available to measure NMB objectively in routine clinical settings.…”

Section: Acceleromyographymentioning

confidence: 98%

Brief review: Neuromuscular monitoring: an update for the clinician

Hemmerling

Lê

2007

Can J Anesth/J Can Anesth

View full text Add to dashboard Cite

Purpose:To review established techniques and to provide an update on new methods for clinical monitoring of neuromuscular function relevant to anesthesia.Source: A PubMed search of relevant article for the period 1985-2005 was undertaken, and bibliographies were scanned for additional sources. Principal findings:There is no substitute for objective neuromuscular monitoring; for research purposes, mechanomyography (MMG) is the gold standard; however, the most versatile method in the clinical setting is acceleromyography since it can be applied at various muscles and has a long track record of clinical utility. Kinemyography is valid to monitor recovery of neuromuscular transmission at the adductor pollicis muscle (AP), whereas phonomyography is easy to apply to various muscles and shows promising agreement with MMG. Monitoring of the corrugator supercilii muscle (CS) may be used to determine the earliest time for tracheal intubation as it reflects laryngeal relaxation better than monitoring at the AP. Recovery of neuromuscular transmission is best monitored at the AP, since it is the last muscle to recover from neuromuscular blockade (NMB). If train-of-four (TOF) stimulation is used, a TOF-ratio > 0.9 should be the target before awakening the patient. If surgery or the type of anesthesia necessitates NMB of a certain degree, e.g., TOF-ratio = 0.25, monitoring of muscles which best reflect the degree of NMB at the surgical site is preferable. Conclusion:Objective methods should be used to monitor neuromuscular function in clinical anesthesia. Acceleromyography offers the best compromise with respect to ease of use, practicality, versatility, precision and applicability at various muscles.The CS is the optimal muscle to determine the earliest time for intubation, e.g., for rapid sequence induction.

show abstract

Acceleromyography vs. electromyography: an ipsilateral comparison of the indirectly evoked neuromuscular response to train‐of‐four stimulation

Abstract: Acceleromyographic TOF values tend to overestimate the extent of EMG recovery. Acceleromyographic TOF values <0.90 are indicative of incomplete neuromuscular recovery.

Cited by 58 publications

References 18 publications

Performance of acceleromyography with a short and light TOF-tube compared with mechanomyography

Performance of acceleromyography with a short and light TOF-tube compared with mechanomyography

High Incidence of Residual Curarization After Rocuronium Despite Administration of Neostigmine

Brief review: Neuromuscular monitoring: an update for the clinician

Contact Info

Product

Resources

About