Sensitive median-ulnar motor comparative techniques in carpal tunnel syndrome

Sander, Howard W.; Quinto, Christine; Saadeh, PB; Chokroverty, Sudhansu

doi:10.1002/(sici)1097-4598(199901)22:1<88::aid-mus13>3.0.co;2-c

Cited by 48 publications

(20 citation statements)

References 18 publications

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“…Tuzaklanma dü-şünülen sinirin minFDL'sinin, aynı ekstremitedeki başka bir sinir ya da kontralateral ekstremitedeki aynı sinirin minFDL'si ile kıyaslanması, tuzaklanma varlığının doğrulanmasında etkin yöntemlerdir. [8][9][10][11] Ne var ki, bu yöntemlerin özel-likle erken evrelerdeki tanısal etkinlik oranları duyusal ileti parametrelerinkinden daha düşük-tür. [12][13][14] Soudmand ve ark., yaptıkları elektrofizyolojik çalışmada, boy ile median ve peroneal sinir minFDL'leri arasında pozitif bir korelasyon olduğunu göstermişlerdir.…”

Section: Discussionunclassified

Association of Age, Sex, Height & Body Mass Index with the Minimum F Wave Latency of the Median & Ulnar Nerves

Alemdar¹

2017

Turkiye Klinikleri J Neur

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Section: Discussionunclassified

Association of Age, Sex, Height & Body Mass Index with the Minimum F Wave Latency of the Median & Ulnar Nerves

Alemdar¹

2017

Turkiye Klinikleri J Neur

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“…20 In a study of Chang et al, MN-thenar to UN-hypothenar DMLD was found to have a sensitivity of 70% in diagnosis of CTS. 16 However, the grades of the CTS were not reported in both papers.…”

Section: Discussionmentioning

confidence: 99%

“…MN to UN DSOL difference (DSOLD) and DSPL difference (DSPLD), the ratio of sensory nerve action potential (SNAP) amplitudes, comparison of sensory conduction velocities, DML differences (DMLD), and minimum F wave latency difference (mFWLD) are the main kinds of the previously studied comparative techniques. 5,8,12,[17][18][19][20][21] In particular, comparing the MN and UN sensory responses on fourth finger was revealed as a useful tool on the electrodiagnosis of CTS even in early grades of the disease. 13,18,19,[21][22][23][24][25][26] In this study, we searched the sensitivity and specificity values of various MN to UN comparative tests in diagnosis of CTS in early stages of the compression.…”

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confidence: 99%

Median to Ulnar Nerve Comparative Conduction Studies on Diagnosis of Carpal Tunnel Syndrome in Early Grades

Alemdar¹

2016

Turkiye Klinikleri J Neur

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A AB BS S T TR RA AC CT T O Ob bj je ec ct ti iv ve e: : To analyze the utility of various comparative median (MN) to ulnar nerve (UN) conduction study (NCS) techniques in detecting carpal tunnel syndrome (CTS). MMa at te er ri ia al l a an nd d M Me et th ho od ds s: : We retrospectively analyzed our NCS recordings that belong to the patients who were consecutively referred to our laboratory within a year. The best cut off points and diagnostic efficiencies of the parameters based on comparison of MN and UN distal sensory onset latencies (DSOLs) and peak latencies (DSPLs) over fourth finger and second-to-fifth finger, SNAP amplitudes, MN-thenar and UN-hypothenar distal motor latencies (DMLs), minimum F wave latencies (mFWLs), CMAP amplitudes, motor conduction velocities, and MN sensory and UN motor latency (MS-UM) on electrodiagnosis of CTS were detected beside ones of conventional conduction parameters. R Re es su ul lt ts s: : Totally 109 recordings among the 210 upper extremity recordings were included. CTS was clinically diagnosed in 59 hands (54.1%). MN DSOL and DSPL over fourth finger had the highest diagnostic efficiency values (88.1% and 87.2%, respectively) among conventional parameters, whereas MN to UN DSOL and DSPL differences over fourth finger had the highest ones (93.6% and 90.8%, respectively) among comparative parameters. MN DSOL and DSPL values, over both second and fourth fingers, had good overall agreement in confirming the CTS diagnosis. That was also true for MN to UN DSOL and DSPL differences on fourth finger, but not for ones on second to fifth finger DSOL and DSPL comparisons. The diagnostic efficiency values were 80.7% for DML difference and 78% for mFWL difference. C Co on nc cl lu us si io on n: : DSOL and DSPL differences over fourth finger have a favorable diagnostic efficiency values on CTS diagnosis. Although the MN to UN DML and mFWL differences are more efficient in CTS diagnosis, their diagnostic efficiency rates are lower than ones of sensory parameters. Future studies are warranted to consider their possible usefulness of them for diagnosing CTS in patients with concomitant polyneuropathy or unelicitable sensory responses because of technical pitfalls during the sensory NCSs. K Ke ey y W Wo or rd ds s: : Carpal tunnel syndrome; median nerve; ulnar nerve Ö ÖZ ZE ET T A Am ma aç ç: : Karpal Tünel Sendromunun (KTS) tespitinde, median sinir (MN) ve ulnar sinir (UN) kıyas-lanmasına dayalı değişik sinir iletim çalışmaları tekniklerinin kullanılabilirliğini analiz etmek. G Ge er re eç ç v ve e Y Yö ön nt te em ml le er r: : Bir yıl süresince laboratuvarımıza refere edilen hastalara ait sinir iletim çalışmalarının kayıtlarını retrospektif olarak analiz ettik. Geleneksel parametrelerinkinin yanısıra, 4. parmak ve 2-5. parmak üzerin-den kaydedilen MN-UN duyusal başlangıç latansları (DSOL) ve tepe latansları (DSPL), duyusal yanıt amplitüdleri, median-tenar ve ulnar-hipotenar distal motor latansları (DML), minimum F dalga latansları (mFWL), bileşik kas aksiyon potansiyeli amplitüdleri, ...

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“…Several studies argue that FWML is a sensitive method in CTS diagnosis [15]. Among healthy persons, median FWML is usually shorter than ulnar FWML [1], probably due to the shorter distance between C8/T1 roots and thenar eminence to hipothenar eminence or the variation in maximal conduction velocity [16]. In axonal loss caused by demyelination or secondary myelin loss the FWML increases.…”

Section: Discussionmentioning

confidence: 99%

“…According to electrophysiological studies on normal subjects, ulnar nerve F-wave minimal latency (FWML) is expected to be longer than median nerve FWML [1,15,16]. It has been shown that this situation can be reversed in patients with CTS, however, its clinical importance has not been clearly established.…”

Section: Introductionmentioning

confidence: 99%

Value of F-wave inversion in diagnosis of carpal tunnel syndrome and it's relation with anthropometric measurements

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2015

BMR

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Sensitive median-ulnar motor comparative techniques in carpal tunnel syndrome

Cited by 48 publications

References 18 publications

Association of Age, Sex, Height & Body Mass Index with the Minimum F Wave Latency of the Median & Ulnar Nerves

Association of Age, Sex, Height & Body Mass Index with the Minimum F Wave Latency of the Median & Ulnar Nerves

Median to Ulnar Nerve Comparative Conduction Studies on Diagnosis of Carpal Tunnel Syndrome in Early Grades

Value of F-wave inversion in diagnosis of carpal tunnel syndrome and it's relation with anthropometric measurements

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