Leighton Chan

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CONTEXT Intraoperative cholangiography (IOC) may decrease the risk of common bile duct (CBD) injury during cholecystectomy by helping to avoid misidentification of the CBD. OBJECTIVE To characterize the relationship of IOC use and CBD injury while controlling for patient and surgeon characteristics. DESIGN, SETTING, AND PATIENTS Retrospective nationwide(More)
The aim of this review paper is to summarize recent developments in the field of wearable sensors and systems that are relevant to the field of rehabilitation. The growing body of work focused on the application of wearable technology to monitor older adults and subjects with chronic conditions in the home and community settings justifies the emphasis of(More)
CONTEXT Common bile duct (CBD) injury during cholecystectomy is a significant source of patient morbidity, but its impact on survival is unclear. OBJECTIVE To demonstrate the relation between CBD injury and survival and to identify the factors associated with improved survival among Medicare beneficiaries. DESIGN, SETTING, AND PATIENTS Retrospective(More)
BACKGROUND AND PURPOSE Falls are a major health problem in the elderly community; however, questions regarding incidence, risk factors, and provider response to falls exist. The purpose of this study was to examine the incidence of falls, associated factors, health care costs, and provider response to falls among Medicare beneficiaries. PARTICIPANTS The(More)
OBJECTIVE To determine the relative incidence, prevalence, costs, and impact on disability of 8 common conditions treated by rehabilitation professionals. DATA SOURCES Comprehensive bibliographic searches using MEDLINE, Google Scholar, and UpToDate, (June, 2013). DATA EXTRACTION Two review authors independently screened the search results and performed(More)
CONTEXT Case series demonstrate that bariatric surgery can be performed with a low rate of perioperative mortality (0.5%), but the rate among high-risk patients and the community at large is unknown. OBJECTIVES To evaluate the risk of early mortality among Medicare beneficiaries and to determine the relative risk of death among older patients. DESIGN(More)
BACKGROUND A previous randomised controlled trial reported greater efficacy of surgery than of splinting for patients with carpal tunnel syndrome. Our aim was to compare surgical versus multi-modality, non-surgical treatment for patients with carpal tunnel syndrome without denervation. We hypothesised that surgery would result in improved functional and(More)
BACKGROUND Pulmonary hypertension (PH) restricts the ability to engage in physical activity and decreases longevity. We examined the impact of aerobic exercise training on function and quality of life in patients with World Health Organization group 1 PH. METHODS Patients were randomized to a 10-week education only (EDU) or education/exercise combined(More)
BACKGROUND Previous studies have suggested that women with acute myocardial infarction receive less aggressive therapy than men. We used data from the Cooperative Cardiovascular Project to determine whether women and men who were ideal candidates for therapy after acute myocardial infarction were treated differently. METHODS Information was abstracted(More)
OBJECTIVE To compare health maintenance procedure rates of Medicare patients with different levels of disability. STUDY DESIGN Observational study analyzing data from the 1995 Medicare Current Beneficiary Survey (MCBS, n = 15,590). Self-reported Pap smears, mammograms, and influenza and pneumococcal vaccinations were compared between groups with different(More)