Rhonda M. Williams

Depression and multiple sclerosis: Review of a lethal combination

Depression is the most frequent psychiatric disorder in multiple sclerosis (MS) patients. The etiology of depression is multifactorial and likely associated with psychosocial stress, focal demyelinating lesions, and immune dysfunction. Proper diagnosis and severity assessment are critical prior to initiation of therapy. Patients with suicidal ideation should be referred for immediate psychiatric consultation and be closely monitored. While more therapeutic trials for depression in MS are needed, MS patients have been shown to respond to current antidepressant medications and psychotherapy. Unfortunately, patients with MS and major depression or suicidal thoughts are often underassessed and therefore not diagnosed. Unlike other aspects of MS, depression is treatable. Early intervention in depression can prevent declines in quality of life and even death from suicide. This article reviews the unique features, assessment, and treatment of depression in MS. MS care providers should vigilantly assess depression and suicide risk in their patients.

A two-year longitudinal study of social support following amputation

Purpose: (1) To describe one aspect of social support, social integration, longitudinally for 2 years following lower limb amputation and (2) to explore the impact of social support on depression, pain interference, life satisfaction, mobility, and occupational functioning. Method: Eighty-nine adults recruited from consecutive admissions to an orthopaedic surgery service completed telephone interviews 1, 6, 12 and 24 months following amputation surgery. Dependent variables included the Social Integration (SI) sub-scale of the Craig Handicap Assessment and Reporting Technique (CHART) and the Multidimensional Scale of Perceived Social Support (MSPSS). Results: There was a high level of SI among most persons following lower limb amputations that was relatively unchanged in the 2 years following surgery. However, mean levels of SI were lower in this group compared to a sample without disabilities. MSPSS scores were highly variable, ranging from almost no support to the maximum amount of support. MSPSS was an important concurrent predictor of pain interference, life satisfaction, and mobility, controlling for demographic and amputation-related factors. Baseline MSPSS predicted mobility and occupational functioning 6 months post-amputation, controlling for demographic and amputation-related factors. Conclusions: Findings suggest that interventions aimed at improving the quality of social relationships after amputation may facilitate participation in activities.

Prevalence and correlates of depression among veterans with multiple sclerosis

Objectives: To establish the prevalence of major depressive episode (MDE) in a large sample of veterans with multiple sclerosis (MS); to identify demographic characteristics, aspects of disease presentation, and perceptions of disability associated with greater concurrent risk for MDE; and to examine the relationship between MDE, service utilization, and activity participation. Methods: Veterans with MS (n = 1,032) were identified via computer database and surveyed by mail; 451 (43.7%) responded. Results: Twenty-two percent of the sample met criteria for current MDE. Low income, unemployment, presence of falls, younger age, absence of a marital partner, and high levels of perceived disability due to bowel functioning were independently associated with MDE. Disease subtype, disease duration, use of disease modifying therapies, and perceived disability due to mobility or bladder problems were unrelated to MDE. Current MDE was in turn associated with increased primary care visits and increased impact of disease upon activity participation. Similar correlates were associated with minor depressive episode. Conclusions: Unlike the general population, rates of depression in this predominantly male sample were similar to those found in predominantly female samples of persons with multiple sclerosis. Specific aspects of disability were differentially associated with depression, and depression was independently associated with increased service utilization and increased participation limitations.

Self-management improves outcomes in persons with limb loss.

OBJECTIVE To test the acceptance and effectiveness of a community-based self-management (SM) intervention designed to improve outcomes after limb loss. A priori hypothesis was that an SM intervention will be more effective than standard support group activities in improving outcomes. DESIGN Randomized controlled trial. SETTING General community. PARTICIPANTS Intervention (N=287) and control participants (N=235) with major limb loss. INTERVENTION(S) Nine, 90-minute SM group sessions delivered by trained volunteer leaders. Retention rates at immediate postintervention and 6-month follow-up were 97% and 91% for the SM group. MAIN OUTCOME MEASURE(S) Primary outcomes were depression, positive mood, and self-efficacy. Secondary outcomes were improved functional status and quality of life. RESULTS By using intent-to-treat analyses, the odds for being depressed are significantly lower for those in SM group, 50% less likely at treatment completion (95% confidence interval [CI]=0.3-0.9) and 40% less likely at the 6-month follow-up (95% CI=.03-1.1). Treatment completers have a 70% reduction in likelihood of being depressed at posttreatment (P<.01) and this persists at six months (P<.05). For those in the SM group, functional limitations were significantly lower at 6 months (P<.05), and general self-efficacy was significantly higher at immediate posttreatment (P<.05) and at 6 months (P<.05). Treatment completers have generally significantly larger effect sizes at all follow-up points. Pain intensity, self-efficacy for pain control, and quality of life were not significantly different between the groups. Subgroup analyses indicated the impact of the intervention was greater for participants who were less than 3 years postamputation, participants who were less than 65 years of age, or participants who showed at least 1 secondary condition at baseline. CONCLUSIONS The study provides evidence that SM interventions can improve the outcomes of persons with limb loss beyond benefits offered by support groups.

Defining successful mobility after lower extremity amputation for complications of peripheral vascular disease and diabetes

BACKGROUND Information about longer-term functional outcomes following lower extremity amputation for peripheral vascular disease and diabetes remains limited. This study examined factors associated with mobility success during the first year following amputation. METHODS Prospective cohort study of 87 amputees experiencing a first major unilateral amputation surgery. Seventy-five (86%) participants completed 12-month follow-up interview. RESULTS Twenty-eight subjects (37%) achieved mobility success, defined as returning to or exceeding a baseline level of mobility on the locomotor capability index (LCI-5). Forty-three subjects (57%) were satisfied with their mobility. Individuals who were 65 years of age and older (risk difference [RD] = -0.52; 95% confidence interval [CI]: -0.75, -0.29), reported a current alcohol use disorder (RD = -0.37; 95% CI: -0.48, -0.26), had a history of hypertension (RD = -0.23; 95% CI: -0.43, -0.03) or treatment for anxiety or depression (RD = -0.39; 95% CI: -0.50, -0.28) were less likely to achieve mobility success. Mobility success was associated with mobility satisfaction (RD = 0.36; 95% CI: 0.20, 0.53) and satisfaction with life (RD = 0.28; 95% CI: 0.06, 0.50). Although higher absolute mobility at 12 months was also associated with mobility satisfaction and overall life satisfaction, 50% of individuals who achieved success with low to moderate 12-month mobility function reported they were satisfied with their mobility. CONCLUSION Defining success after amputation in relation to an individuals specific mobility prior to the development of limb impairment which led to amputation provides a useful, patient-centered measure that takes other aspects of health, function, and impairment into account.

Prosthetic fitting, use, and satisfaction following lower-limb amputation: a prospective study.

Providing a satisfactory, functional prosthesis following lower-limb amputation is a primary goal of rehabilitation. The objectives of this study were to describe the rate of successful prosthetic fitting over a 12 mo period; describe prosthetic use after amputation; and determine factors associated with greater prosthetic fitting, function, and satisfaction. The study design was a multicenter prospective cohort study of individuals undergoing their first major lower-limb amputation because of vascular disease and/or diabetes. At 4 mo, unsuccessful prosthetic fitting was significantly associated with depression, prior arterial reconstruction, diabetes, and pain in the residual limb. At 12 mo, 92% of all subjects were fit with a prosthetic limb and individuals with transfemoral amputation were significantly less likely to have a prosthesis fit. Age older than 55 yr, diagnosis of a major depressive episode, and history of renal dialysis were associated with fewer hours of prosthetic walking. Subjects who were older, had experienced a major depressive episode, and/or were diagnosed with chronic obstructive pulmonary disease had greater functional restriction. Thus, while most individuals achieve successful prosthetic fitting by 1 yr following a first major nontraumatic lower-limb amputation, a number of medical variables and psychosocial factors are associated with prosthetic fitting, utilization, and function.

Mobility changes in individuals with dysvascular amputation from the presurgical period to 12 months postamputation

OBJECTIVES To describe changes in ambulation among individuals with lower-extremity amputation secondary to peripheral artery disease and/or diabetes prior to surgery through 12 months after surgery. To compare differences in ambulation by amputation level and to examine risk factors for change in ambulation over time. DESIGN Prospective cohort study. SETTING Two Veterans Affairs medical centers, 1 university hospital, and a level I trauma center. PARTICIPANTS Patients with peripheral artery disease or diabetes (N=239) undergoing a first unilateral major amputation were screened for participation between September 2005 and December 2008. Among these, 57% (n=136) met study criteria, and of these, 64% (n=87) participated. INTERVENTIONS Standard of care at each facility. MAIN OUTCOME MEASURES Ambulatory function measured using the Locomotor Capability Index-5. RESULTS Seventy-five of the 87 (86%) subjects enrolled finished their 12-month follow-up interview. Ambulatory mobility declined during the period immediately prior to surgery (premorbid) and remained low at 6 weeks postsurgery. On average, ambulation improved after surgery but did not return to premorbid levels. In the final multivariate model, age and history of lower-extremity arterial reconstruction were significantly associated with a poorer ambulatory trajectory over time, while other factors, such as amputation level, prior alcohol use, and length of disability prior to amputation, were not. CONCLUSIONS The findings highlight the importance of considering premorbid ambulatory function. Informing providers and patients about the trajectory and time course of changes in ambulation can enhance patient education, patient expectations, and treatment planning.

Comorbidity of Pain and Depression Among Persons With Traumatic Brain Injury

OBJECTIVE To assess the prevalence of pain, depression, and comorbid pain and depression among a civilian sample of persons with traumatic brain injury (TBI). DESIGN Longitudinal survey design with 1-year follow-up. SETTING Inpatient rehabilitation and the community. PARTICIPANTS Participants (N=158) admitted to inpatient rehabilitation after moderate to severe TBI. INTERVENTIONS Not applicable. MAIN OUTCOME MEASURES Depression was assessed with the Patient Health Questionnaire-9 (PHQ-9); pain was assessed with a numerical rating scale from 0 (no pain) to 10 (worst pain). Participants who reported average pain ≥ 4 were classified as having pain, and participants with PHQ-9 scores ≥ 10 were classified as depressed. RESULTS Both pain and depression were more prevalent at baseline assessment (pain: 70%; depression: 31%) than at year 1 (pain: 34%; depression: 22%). Comorbid pain and depression declined from 27% at baseline to 18% at year 1. Pain was significantly associated with depression at baseline (relative risk: 2.62, P=.003) and at year 1 (relative risk: 7.98, P<.001). CONCLUSIONS Pain and depression are common and frequently co-occur in persons with TBI. Although their frequency declined over the first year after injury, the strength of their association increased. Assessment and treatment of both conditions simultaneously may lead to improved outcomes, both early after TBI and over time.

Complementary and alternative medicine use in veterans with multiple sclerosis: Prevalence and demographic associations

The present study explored complementary and alternative medicine (CAM) use in veterans with multiple sclerosis (MS). We administered self-report questionnaires to 451 veterans who received healthcare from Veterans Health Administration facilities. CAM use among veterans with MS was widespread; 37% of respondents reported current or past use. Roughly 33% of CAM users reported using multiple interventions, and 40% of respondents desired interventions that they were not already using. Logistic regression suggested that CAM use was more likely among participants with graduate-level education, poor self-reported health over the past year, and a progressive relapsing MS subtype. Participants who used traditional medical services were also more likely to use CAM, which suggests that CAM services are used in addition to, as opposed to in place of, traditional services. As others have proposed, these results suggest that care providers who work with persons with MS would be well served to understand, routinely screen for, and make use of CAM when appropriate.

Perceived social support and depression among Veterans with multiple sclerosis

Purpose. To examine the association between perceived social support and self-reported depression among Veterans of the US Armed Forces (‘Veterans’) with multiple sclerosis (MS), and differences in this relationship between specific support subtypes (tangible, positive social interaction, emotional/informational and affective). Method. Participants were Veterans with MS (N = 451) receiving medical services through the Veterans Health Administration who completed mailed surveys. Hierarchical regression examined the extent to which global perceived social support concurrently predicted depression among a predominantly male sample of individuals with MS. Exploratory correlational analyses examined the relationship between specific subtypes of perceived social support and depression. Results. Greater global perceived social support was associated with less depression after controlling for sociodemographic and disease-related variables. In follow-up analyses examining specific subtypes of support, greater positive social interaction, greater emotional/informational support, and greater affective support were related to less depression. There was no relationship between perceived tangible support and depression. Conclusions. Interventions aimed at increasing positive social interactions, expressed affection and emotional/information support may be particularly helpful for individuals with MS and their caregivers.