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Grip strength comparison in immune‐mediated neuropathies: Vigorimeter vs. Jamar

Draak, Thomas H. P. ; Pruppers, Mariëlle H. J. ; van Nes, Sonja I. ; [et al.]

Wiley ; 2015

In: Journal of the Peripheral Nervous System Vol. 20, No. 3 ( 2015-09), p. 269-276

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In: Journal of the Peripheral Nervous System, Wiley, Vol. 20, No. 3 ( 2015-09), p. 269-276

Abstract: The Jamar dynamometer and Vigorimeter have been used to assess grip strength in immune‐mediated neuropathies, but have never been compared to each other. Therefore, we performed a comparison study between these two devices in patients with immune‐mediated neuropathies. Grip strength data were collected in 102 cross‐sectional stable and 163 longitudinal (new diagnoses or changing condition) patients with Guillain‐Barré syndrome ( GBS ), chronic inflammatory demyelinating polyradiculoneuropathy ( CIDP ), gammopathy‐related polyneuropathy ( MGUSP ), and multifocal motor neuropathy ( MMN ). Stable patients were assessed twice (validity/reliability studies). Longitudinal patients were assessed 3‐5 times during 1 year. Responsiveness comparison between the two tools was examined using combined anchor‐/distribution‐based minimum clinically important difference ( MCID ) techniques. Patients were asked to indicate their preference for the Jamar or Vigorimeter. Both tools correlated highly with each other (ρ = 0.86, p 〈 0.0001) and showed good intra‐class correlation coefficients (Jamar [Right/Left hands]: ICC 0.997/0.96; Vigori: ICC 0.95/0.98). Meaningful changes were comparable between the two instruments, being higher in GBS compared to CIDP patients. In MGUSP / MMN poor responsiveness was seen. Significant more patients preferred the Vigorimeter. In conclusion, validity, reliability, and responsiveness aspects were comparable between the Jamar dynamometer and Vigorimeter. However, based on patients' preference, the Vigorimeter is recommended in future studies in immune‐mediated neuropathies.

Type of Medium: Online Resource

ISSN: 1085-9489 , 1529-8027

URL: Issue

URL: Article

DOI: 10.1111/jns.2015.20.issue-3

DOI: 10.1111/jns.12126

Language: English

Publisher: Wiley

Publication Date: 2015

detail.hit.zdb_id: 2030613-1

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Impairment measures versus inflammatory RODS in GBS and CIDP : a responsiveness comparison

Vanhoutte, Els K. ; Draak, Thomas H. P. ; Gorson, Kenneth C. ; [et al.]

Wiley ; 2015

In: Journal of the Peripheral Nervous System Vol. 20, No. 3 ( 2015-09), p. 289-295

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In: Journal of the Peripheral Nervous System, Wiley, Vol. 20, No. 3 ( 2015-09), p. 289-295

Abstract: This study aimed to ‘define responder’ through the concept of minimum clinically important differences using the individually obtained standard errors ( MCID‐SE ) and a heuristic ‘external criterion’ responsiveness method in patients with Guillain‐Barré syndrome ( GBS ) and chronic inflammatory demyelinating polyradiculoneuropathy ( CIDP ). One hundred and fourteen newly diagnosed or relapsing patients ( GBS : 55, CIDP : 59) were serially examined (1‐year follow‐up). The inflammatory Rasch‐built overall disability scale (I‐ RODS ), Rasch‐transformed MRC sum score ( RT‐MRC ), and Rasch‐transformed modified‐ INCAT ‐sensory scale ( RT‐mISS ) were assessed. Being‐a‐responder was defined as having a MCID‐SE cut‐off ≥1.96. Also, the correlations between patients' scores on each scale and the EuroQoL health‐status ‘thermometer’ (external criterion) were determined (higher correlation indicated better responsiveness). In both diseases, the SEs showed a characteristic ‘U’‐shaped dynamic pattern across each scales' continuum. The number of patients showing a meaningful change were higher for the I‐ RODS 〉 RT‐MRC 〉 RT‐mISS and were in GBS higher than CIDP patients. The MCID‐SE concept using Rasch‐transformed data demonstrated an individual pattern of ‘being‐a‐responder’ in patients with immune‐mediated neuropathies, and the findings were validated by the external criterion responsiveness method. The I‐ RODS showed greater responsiveness compared with the MRC and INCAT ‐sensory scales, and its use is therefore recommended in future trials in GBS and CIDP .

Type of Medium: Online Resource

ISSN: 1085-9489 , 1529-8027

URL: Issue

URL: Article

DOI: 10.1111/jns.2015.20.issue-3

DOI: 10.1111/jns.12118

Language: English

Publisher: Wiley

Publication Date: 2015

detail.hit.zdb_id: 2030613-1

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Comparing the NIS vs. MRC and INCAT sensory scale through Rasch analyses

Draak, Thomas H. P. ; Vanhoutte, Els K. ; van Nes, Sonja I. ; [et al.]

Wiley ; 2015

In: Journal of the Peripheral Nervous System Vol. 20, No. 3 ( 2015-09), p. 277-288

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In: Journal of the Peripheral Nervous System, Wiley, Vol. 20, No. 3 ( 2015-09), p. 277-288

Abstract: We performed a comparison between Neuropathy Impairment Scale‐sensory ( NISs ) vs. the modified Inflammatory Neuropathy Cause and Treatment sensory scale ( mISS ), and NIS ‐motor vs. the Medical Research Council sum score in patients with Guillain‐Barré syndrome ( GBS ), chronic inflammatory demyelinating polyradiculoneuropathy ( CIDP ), and IgM monoclonal gammopathy of undetermined significance‐related polyneuropathy ( MGUSP ). The ordinal data were subjected to Rasch analyses, creating Rasch‐transformed ( RT )‐intervals for all measures. Comparison between measures was based on validity/reliability with an emphasis on responsiveness (using the patient's level of change related to the individually obtained varying SE for minimum clinically important difference). Eighty stable patients ( GBS : 30, CIDP : 30, and MGUSP : 20) were assessed twice (entry: two observers; 2–4 weeks later: one observer), and 137 newly diagnosed or relapsing patients ( GBS : 55, CIDP : 59, and IgM‐MGUSP : 23) were serially examined with 12 months follow‐up. Data modifications were needed to improve model fit for all measures. The sensory and motor scales demonstrated approximately equal and acceptable validity and reliability scores. Responsiveness scores were poor but slightly higher in RT‐mISS compared to RT‐NISs . Responsiveness was equal for the RT ‐motor scales, but higher in GBS compared to CIDP ; responsiveness was poor in patients with MGUSP , suggesting a longer duration of follow‐up in the latter group of patients.

Type of Medium: Online Resource

ISSN: 1085-9489 , 1529-8027

URL: Issue

URL: Article

DOI: 10.1111/jns.2015.20.issue-3

DOI: 10.1111/jns.12127

Language: English

Publisher: Wiley

Publication Date: 2015

detail.hit.zdb_id: 2030613-1

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