Prediction of Functional Limitations in Balance after Tests of Tandem Walking and Standing Balance in Older Adults.

OBJECTIVE: Older adults who may not complain of balance problems may nevertheless be developing subtle balance problems that may affect future functioning. This study sought to determine whether subtle problems could be predicted by standard balance testing. METHODS: At the geriatric medicine clinic at an academic tertiary-care center, geriatricians referred 27 people who were ambulatory without gait aids and had no apparent neurologic or musculoskeletal impairments affecting their balance or gait performance. Initially, subjects were screened with some questions about vertigo, tests of standing balance on foam with eyes closed (Romberg tests) with head still, and head nodding (pitch) and shaking (yaw) at 0.3 Hz, and tandem walking with eyes closed (TW). Approximately 2 years later, 22 subjects were available to be rescreened. RESULTS: At the second test date subjects' scores declined slightly but significantly on all three variations of the Romberg tests: with head still, head pitch, and head yaw, P ≥ 0.02, but TW did not change significantly. TW was the best predictor of balance performance; the lowest-scoring subjects at the second test used a cane, had undergone hip surgery, or were scheduled for hip surgery: sensitivity 1.0, specificity 0.84. The second-best predictor was Romberg on foam with eyes closed and head still. CONCLUSIONS: The data suggest that some older adults may have subtle musculoskeletal impairments that may be indicated by simple balance tests. A finding on these tests may indicate the need for further workup for balance-related problems. These quick, inexpensive tests can be administered by ancillary staff and may add important information to the initial visit and annual follow-up visits.

Vision Screening in Adults Across the Life Span.

OBJECTIVES: The goal of this study was to determine whether adults across the life span differ in responses to quick vision screening and how those responses relate to adults' use of specialized eye care. METHODS: Subjects were 363 community-dwelling ambulatory adults, 21 to 95 years old, who were tested while they wore their corrective lenses during routine visits to a tertiary care facility. No subjects had known neurological impairments, age-related macular degeneration, or other significant eye disease. A wall-mounted Early Treatment in Diabetic Retinopathy Study chart was used. RESULTS: Older adults 58 years old or older had significantly worse scores than younger adults. Scores did not differ between subjects who had been tested within or prior to the last 10 months. Older subjects had their vision tested significantly more recently than younger subjects. CONCLUSIONS: Vision screening is quick, inexpensive, and easily performed by ancillary staff, and it may provide the physician with useful additional information for treatment planning.

The peaceful mind program: a pilot test of a cognitive-behavioral therapy-based intervention for anxious patients with dementia.

OBJECTIVES: To assess feasibility and to conduct a preliminary evaluation of outcomes following Peaceful Mind, a cognitive-behavioral therapy-based intervention for anxiety in dementia, relative to usual care. DESIGN: Pilot randomized controlled trial including assessments at baseline and 3 and 6 months. SETTING: Houston, TX. PARTICIPANTS: Thirty-two outpatients diagnosed with mild (47%) or moderate (53%) dementia receiving care through outpatient clinics at the Veterans Affairs medical center, Baylor College of Medicine, Harris County Hospital District, and community day centers for dementia, and their collaterals, who spent at least 8 hours a week with them. INTERVENTION: Peaceful Mind included up to 12 weekly in-home sessions (mean: 8.7, SD: 2.27) during the initial 3 months and up to eight brief telephone sessions (mean: 5.4, SD: 3.17) during months 3-6, involving self-monitoring for anxiety, deep breathing, and optional skills (coping self-statements, behavioral activation, and sleep management). Patients learned skills, and collaterals served as coaches. In usual care, patients received diagnostic feedback, and providers were informed of inclusion status. MEASUREMENTS: Neuropsychiatric Inventory-Anxiety subscale, Rating Anxiety in Dementia scale, Penn State Worry Questionnaire-Abbreviated, Geriatric Anxiety Inventory, Geriatric Depression Scale, Quality of Life in Alzheimer disease, Patient Health Questionnaire, and Client Satisfaction Questionnaire. RESULTS: Feasibility was demonstrated with regard to recruitment, attrition, and treatment characteristics. At 3 months, clinicians rated patients receiving Peaceful Mind as less anxious, and patients rated themselves as having higher quality of life; collaterals reported less distress related to loved ones' anxiety. Although significant positive effects were not noted in other outcomes or at 6-month follow-up, the pilot nature of the trial prohibits conclusions about efficacy. CONCLUSIONS: Results support that Peaceful Mind is ready for future comparative clinical trials.

Missed and delayed diagnosis of dementia in primary care: prevalence and contributing factors.

Dementia is a growing public health problem for which early detection may be beneficial. Currently, the diagnosis of dementia in primary care is dependent mostly on clinical suspicion on the basis of patient symptoms or caregivers' concerns and is prone to be missed or delayed. We conducted a systematic review of the literature to ascertain the prevalence and contributing factors for missed and delayed dementia diagnoses in primary care. Prevalence of missed and delayed diagnosis was estimated by abstracting quantitative data from studies of diagnostic sensitivity among primary care providers. Possible predictors and contributory factors were determined from the text of quantitative and qualitative studies of patient, caregiver, provider, and system-related barriers. Overall estimates of diagnostic sensitivity varied among studies and seemed to be in part a function of dementia severity, degree of patient impairment, dementia subtype, and frequency of patient-provider contact. Major contributory factors included problems with attitudes and patient-provider communication, educational deficits, and system resource constraints. The true prevalence of missed and delayed diagnoses of dementia is unknown but seems to be high. Until the case for dementia screening becomes more compelling, efforts to promote timely detection should focus on removing barriers to diagnosis.

Screening for Vestibular Disorders Using the Modified Clinical Test of Sensory Interaction and Balance and Tandem Walking With Eyes Closed.

OBJECTIVES: Determine accurate cut-points and optimal combinations of screening tests of balance to detect patients with vestibular disorders. STUDY DESIGN: Case-control study. SETTING: Out-patient tertiary care. SUBJECTS AND METHODS: Community-dwelling adults, without known neurological deficits or significant musculoskeletal disorders, including patients with vestibular disorders and healthy controls without vestibular disorders were tested while standing on medium density compliant foam with feet together and eyes closed under three head movement conditions, head stationary, and head moving in yaw and pitch at 0.33 Hz, for up to 30 seconds per trial. Dependent measures were trial duration, number of head movements during head movement trials, trunk kinematic measures, and number of correct tandem steps during tandem walking trials. RESULTS: Receiver operator characteristics (ROC), sensitivity and specificity, and specific cut-points were calculated. Individual tests had moderate ROC values, from 0.67 to 0.84. ROC values were higher in the head moving trials than the head stationary trial and best for subjects aged 40 to 79. Using combined analyses of two or more tests, including published data on tandem walking, ROC values were higher, 0.80 to 0.90. Age- and sex-related performance differences were found. CONCLUSION: Balance skills in standing and walking differ, so testing both skills is optimal and increases the likelihood of finding a deficit. Patients should be compared to age-appropriate norms. Kinematics and number of head movements were not very useful. This combined set of rapid, low-tech balance tests is useful in an initial approach to screening patients who may have vestibular disorders.

Utility of quick oculomotor tests for screening the vestibular system in the subacute and chronic populations.

OBJECTIVE: The goal of this study was to determine the sensitivity and specificity of some widely used, easily administered clinical tests. BACKGROUND: Simple tests of oculomotor function have become widely used for clinical screening of patients suspected of having vestibular disorders despite a paucity of evidence showing good statistical support for their use in this highly variable population. METHODS: Healthy controls with no history of otologic or neurologic disorders (n = 291) were compared to patients with known vestibular disorders (n = 62). All subjects performed passive and active head shaking, un-instrumented head impulse tests (HT), and video head impulse tests (vHIT) recorded with infrared video-oculography. RESULTS: For both passive and active head shaking, using presence/absence of vertigo and of nystagmus, sensitivity was low (<0.40). Sensitivity of presence/absence of saccades on HT was even lower (<0.15). On vHIT, gains were all approximately = 1.0, so sensitivity was very low (approximately 0.15-0.35). Sensitivity and specificity for presence/absence of saccades were moderately poor (less than 0.70). CONCLUSION: None of these tests are adequate for screening patients in the out-patient clinic for vestibular disorders or for screening people in epidemiologic studies to determine the prevalence of vestibular disorders.

Tandem walking as a quick screening test for vestibular disorders.

OBJECTIVES/HYPOTHESIS: Although many screening tests of balance are available, few of them have been well validated for clinical or research uses. The goal of this study was to test an updated version of an old test, Tandem Walking, to determine how useful it is for screening patients with vestibular disorders. STUDY DESIGN: Case-control study. METHODS: Subjects were 90 adult patients with vestibular disorders and 292 healthy adult controls. They were tested on the number of correct tandem steps they could perform with arms crossed and eyes closed in a series of 10 steps. Correct steps could be nonconsecutive. Subjects were given one practice trial with eyes open and three experimental trials with eyes closed. RESULTS: Receiver operating characteristic (ROC), and sensitivity and specificity were calculated. ROC values, sensitivity, and specificity were, at best, only moderate, no matter how the age range was cut. Even for subjects in the age group with the highest ROC value (i.e., age less than 50 years), ROC = 0.8, sensitivity = 0.77, and specificity = 0.72. CONCLUSIONS: These results indicate that 23% of patients will not be identified. Therefore, we recommend that if this test is used for screening patients in the clinic or healthy volunteers, the result should be interpreted with care. LEVEL OF EVIDENCE: 3b. Laryngoscope, 128:1687-1691, 2018.