Unintended Consequences of Implementing a National Performance Measurement System into Local Practice

BACKGROUND  

Although benefits of performance measurement (PM) systems have been well documented, there is little research on negative unintended consequences of performance measurement systems in primary care. To optimize PM systems, a better understanding is needed of the types of negative unintended consequences that occur and of their causal antecedents.     

A Qualitative Study of Perceived Responsibility and Self-Blame in Type 2 Diabetes: Reflections of Physicians and Patients

BACKGROUND

Despite new treatment therapies and the emphasis on patient activation, nearly 50?% of diabetes patients have hemoglobin A_1c levels above target. Understanding the impact of unmet treatment goals on the physician-patient relationship is important for maintaining quality care in clinical practice.

OBJECTIVE

To explore physicians?? and type 2 diabetes patients?? views of patients?? difficulty achieving diabetes treatment goals.

DESIGN

Qualitative study using in-depth interviews with a semi-structured interview guide.

PARTICIPANTS

Nineteen endocrinologists and primary care physicians and 34 patients diagnosed with type 2 diabetes at least two years prior.

MAIN MEASURES

In-depth interviews with physicians and patients. A multidisciplinary research team performed content and thematic analyses.

KEY RESULTS

Qualitative analysis revealed two main findings, organized by physician and patient perspectives. Physician Perspective: Physicians?? Perceived Responsibility for Patients?? Difficulty Achieving Treatment Goals: Physicians assumed responsibility for their patients not achieving goals and expressed concern that they may not be doing enough to help their patients achieve treatment goals. Physicians?? Perceptions of Patients?? Reactions: Most speculated that their patients may feel guilt, frustration, or disappointment when not reaching goals. Physicians also felt that many patients did not fully understand the consequences of diabetes. Patient Perspective: Patients?? Self-Blame for Difficulty Achieving Treatment Goals: Patients attributed unmet treatment goals to their inability to carry out self-care recommendations. Most patients blamed themselves for their lack of progress and directed their frustration and disappointment inwardly through self-deprecating comments. Patients?? Perceptions of Physicians?? Reactions: Several patients did not know how their physician felt, while others speculated that their physicians might feel disappointed or frustrated.

CONCLUSIONS

Physicians?? perceived responsibility and patients?? self-blame for difficulty achieving treatment goals may serve as barriers to an effective relationship. Physicians and patients may benefit from a greater understanding of each other??s frustrations and challenges in diabetes management.     

Assessment of vaccine testing at three laboratories using the guinea pig model of tuberculosis

The guinea pig model of tuberculosis is used extensively in different locations to assess the efficacy of novel tuberculosis vaccines during pre-clinical development. Two key assays are used to measure protection against virulent challenge: a 30 day post-infection assessment of mycobacterial burden and long-term post-infection survival and pathology analysis. To determine the consistency and robustness of the guinea pig model for testing vaccines, a comparative assessment between three sites that are currently involved in testing tuberculosis vaccines from external providers was performed. Each site was asked to test two "subunit" type vaccines in their routine animal model as if testing vaccines from a provider. All sites performed a 30 day study, and one site also performed a long-term survival/pathology study. Despite some differences in experimental approach between the sites, such as the origin of the Mycobacterium tuberculosis strain and the type of aerosol exposure device used to infect the animals and the source of the guinea pigs, the data obtained between sites were consistent in regard to the ability of each "vaccine" tested to reduce the mycobacterial burden. The observations also showed that there was good concurrence between the results of short-term and long-term studies. This validation exercise means that efficacy data can be compared between sites.     

Light Environment Influences Developmental Programming of the Metabolic and Visual Systems in Mice

PurposeLight is a salient cue that can influence neurodevelopment and the immune system. Light exposure out of sync with the endogenous clock causes circadian disruption and chronic disease. Environmental light exposure may contribute to developmental programming of metabolic and neurological systems but has been largely overlooked in Developmental Origins of Health and Disease (DOHaD) research. Here, we investigated whether developmental light exposure altered programming of visual and metabolic systems.MethodsPregnant mice and pups were exposed to control light (12:12 light:dark) or weekly light cycle inversions (circadian disruption [CD]) until weaning, after which male and female offspring were housed in control light and longitudinally measured to evaluate differences in growth (weight), glucose tolerance, visual function (optomotor response), and retinal function (electroretinogram), with and without high fat diet (HFD) challenge. Retinal microglia and macrophages were quantified by positive Iba1 and CD11b immunofluorescence.ResultsCD exposure caused impaired visual function and increased retinal immune cell expression in adult offspring. When challenged with HFD, CD offspring also exhibited altered retinal function and sex-specific impairments in glucose tolerance.ConclusionsOverall, these findings suggest that the light environment contributes to developmental programming of the metabolic and visual systems, potentially promoting a pro-inflammatory milieu in the retina and increasing the risk of visual disease later in life.     

Relationship of Alignment and Tibial Cortical Coverage to Hypertrophic Bone Formation in Salto Talaris® Total Ankle Arthroplasty

A retrospective analysis of 107 Salto Talaris^® total ankle replacements was performed to determine the effect of alignment and tibial cortical coverage on the formation of heterotopic bone. The radiographic parameters were studied for at least 18 months to detect any changes over time. The angle of insertion of the implant was most often in varus and with a positive anterior slope. A slight increase was seen in the slope over time (p < .0001) but was not clinically relevant. The mean percentage of cortical coverage of the tibial component was 89%, and only 7 patients had complete coverage of both the anterior and the posterior cortices. The percentage of patients who had hypertrophic bone growth increased over time (p < .0001). As the slope of the implant increased, there was a negative correlation with the degree of tibial coverage (p = .007). There was also an increase in the extent of hypertrophic bone as the tibial coverage decreased. None of the patients had symptoms that required an additional surgical procedure. The results of the present study indicate a high incidence of hypertrophic bone proliferation when the dimensions of the tibial component do not match the anteroposterior depth of the tibia at the plane of resection. Despite the high occurrence rate, the clinical relevance of hypertrophic bone is obscure.     

Implicit sequence learning processes after unilateral stroke

Implicit learning is durable over time, robust under psychological stress and shows specificity of transfer; characteristics that may be beneficial in stroke rehabilitation. The purpose of this study was to investigate implicit sequence learning processes in unilateral stroke using an extended number of trial blocks in a serial reaction time task (SRTT). Previous research, using a SRTT, has produced equivocal results that may be associated with the small number of trial blocks used. Seven adults, at least one year after stroke, and eight controls performed 54 blocks of a modified SRTT over two weeks. Participants responded with a finger key press during acquisition and retention and with a whole arm movement during transfer. Response times in milliseconds were used to measure learning. The stroke group performed more slowly than the controls during all experimental phases. Response times for both groups decreased with practice of the repeating sequence, increased with introduction of a random sequence, and decreased when reintroduced to the repeating sequence of the SRTT. Both groups demonstrated delayed retention of knowledge of the sequence over a two-week period and exhibited specificity of transfer. These data suggest that with extended practice people with unilateral stroke are able to learn implicitly.