Background and Purpose-The modified Rankin Scale (mRS) is a popular primary stroke outcome measure, but its usefulness is limited by suboptimal reliability (inter-rater agreement). Methods-We developed and tested the reliability of a simplified mRS questionnaire (smRSq) in 50 patients after stroke seen in outpatient clinics. Randomly chosen paired raters administered the smRSq within 20 minutes of each other and the ratings were blinded until the end of this study. Results-Agreement among the raters was 78%, the statistic was 0.72 (95% CI, 0.58 -0.86), and the weighted w statistic taking into account the extent of disagreement was 0.82 (95% CI, 0.72-0.92). The average time to administer the smRSq was 1.67 minutes. Conclusions-The smRSq appears to have very good reliability that is similar to that of a structured interview mRS and is considerably less time-consuming. (Stroke. 2010;41:1048-1050.)Key Words: clinometrics Ⅲ modified Rankin Scale Ⅲ outcome assessment R eliability (consistency) of measurements is of paramount importance in scientific research. 1 The modified Rankin Scale (mRS) 2 is a popular primary outcome measure in acute stroke trials, but its usefulness is limited by suboptimal reliability (inter-rater agreement). There is considerable variability in the reported reliability of the mRS. 3 A structured interview mRS that takes Ϸ15 minutes to administer was developed to help improve the mRS reliability. 4 In a recent systematic review the overall agreement between mRS raters without a standardized rating approach was 71%, the kappa () statistic was 0.46 (95% CI, 0.41-0.51), and the weighted kappa ( w ) statistic, taking into account the extent of all disagreements, was 0.90 (95% CI, 0.86 -0.94). 3 Using the structured interview mRS, the overall agreement was Ϸ73%, was 0.62 (95% CI, 0.56 -0.69), and w was 0.87 (95% CI, 0.75-1.00). 3,5,6 Inter-rater agreement was significantly improved with the structured interview mRS among raters with varied professional backgrounds, 7 which simulates a multicenter clinical trial. In an effort to simplify, standardize, and increase further the reliability of the mRS, we developed a simplified mRS questionnaire (smRSq) and tested it among raters with varied professional experiences. Materials and MethodsFour stroke faculty members with a total of 63 years experience applying the traditional unstructured mRS jointly created the smRSq (Figure). Using the key issues distinguishing between consecutive mRS categories, we created relatively simple questions that could be answered "yes" or "no" by patients or caregivers with little or no explanation. The key mRS issues were having no residual symptoms (0), being able to resume all prestroke activities (Յ1), being able to live independently (Յ2), being able to walk without assistance (Յ3), and not requiring constant supervision (Յ4).We screened patients for this study consecutively in 4 weekly clinics staffed by the stroke specialists and in 2 weekly resident continuity clinics at the Medical College of Georgia. Eligibility f...

Background and Purpose-The simplified modified Rankin Scale questionnaire (smRSq) enables a reliable and rapid determination of the modified Rankin Scale score after stroke. We test the reliability and validity of a slightly revised smRSq. Methods-Fifty consecutive outpatients 4.83Ϯ3.00 months after stroke were scored with a slightly revised smRSq by 3 raters selected consecutively from a list of 10: 4 stroke faculty, 3 neurology residents, 2 medial students, and 1 stroke research coordinator. Two ratings were in person within 20 minutes of each other and 1 was by telephone 1 to 3 days later. The telephone rating also included a quality of life scale, the Short-Form-12v2. Each rater was blinded to the other raters' scores. Results-The

Fascicles within the median nerve at the wrist can be readily imaged. Ultrahigh-frequency ultrasound technology may be informative in a variety of disorders affecting the peripheral nervous system. Muscle Nerve 56: 819-822, 2017.

Introduction Our aim in this study was to identify the prevalence and clinical characteristics of LRP4/agrin‐antibody–positive double‐seronegative myasthenia gravis (DNMG). Methods DNMG patients at 16 sites in the United States were tested for LRP4 and agrin antibodies, and the clinical data were collected. Results Of 181 DNMG patients, 27 (14.9%) were positive for either low‐density lipoprotein receptor–related protein 4 (LRP4) or agrin antibodies. Twenty‐three DNMG patients (12.7%) were positive for both antibodies. More antibody‐positive patients presented with generalized symptoms (69%) compared with antibody‐negative patients (43%) ( P ≤ .02). Antibody‐positive patients’ maximum classification on the Myasthenia Gravis Foundation of America (MGFA) scale was significantly higher than that for antibody‐negative patients ( P ≤ .005). Seventy percent of antibody‐positive patients were classified as MGFA class III, IV, or V compared with 39% of antibody‐negative patients. Most LRP4‐ and agrin‐antibody–positive patients (24 of 27, 89%) developed generalized myathenia gravis (MG), but with standard MG treatment 81.5% (22 of 27) improved to MGFA class I or II during a mean follow‐up of 11 years. Discussion Antibody‐positive patients had more severe clinical disease than antibody‐negative patients. Most DNMG patients responded to standard therapy regardless of antibody status.

Introduction Neuromuscular ultrasound is valid, reliable, and accurate, but it is not known if combining it with electrodiagnostic studies leads to better outcomes in individuals with focal neuropathies. Methods 120 individuals with focal neuropathy based on history, examination, and electrodiagnosis were enrolled. All underwent neuromuscular ultrasound and were randomized to either have their ultrasound results sent to the referring physician or not. Outcomes were assessed at 6 months by evaluators blinded to group assignment. Results The Overall Disability Sum Score and 7 of 8 domains of the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) showed more improvement in the “report sent” group, though only the general health perception domain was significant (P = 0.005). Conclusions Most 6-month outcomes did not reach statistical significance between the 2 groups. However, the “report sent” group had trends toward better outcomes with significance reached in the general health perception domain of the SF-36.