Papers by Pushpa Suriyaarachchi
Reference Module in Biomedical Sciences, 2019
Journal of Bone and Mineral Research, 2014
Differing approaches to falls and fracture
Effects of balance training using a virtual-reality system in older fallers
The Journal of Frailty & Aging, 2018
Background: Frailty is associated with poor outcomes hence identification of risks factors is piv... more Background: Frailty is associated with poor outcomes hence identification of risks factors is pivotal. Since the independent role of parathyroid hormone (PTH) in frailty remains unexplored, we aimed to determine this in a population of older individuals with a history of falling. Design: Cross-sectional study. Setting: Falls and Fracture Clinic, Nepean Hospital (Penrith, Australia). Participants: 692 subjects (mean age=79, 65% women) assessed between 2009-2015. Measurements: Assessment included clinical examination, mood, nutrition, grip strength, gait velocity, bone densitometry and posturography. Chemistry included serum PTH, calcium, vitamin D (25(OH)D3), creatinine and albumin. Normocalcemic subjects were divided into 4 groups: (1) Normal: 25(OH)D3 >50nmol/L and PTH between 1.6-6.8pmol/L; (2) PTH responsive: low 25(OH)D3 (<50nmol/L) and high PTH (>6.8pmol/L); (3) PTH unresponsive: low 25(OH)D3 and normal PTH; (4) Hyper PTH (>6.8pmol/L) with normal 25(OH)D3. Frailty w...
Journal of the American Geriatrics Society, 2011
Journal of Bone and Mineral Research, 2014
BMJ Open, 2019
ObjectivesTraditionally, the approach to fracture prevention has focused on increasing bone miner... more ObjectivesTraditionally, the approach to fracture prevention has focused on increasing bone mineral density while typically lacking a combined clinical approach to falls prevention and vice versa. To resolve this gap, we implemented and evaluated a novel combined model of care to the assessment and prevention of osteoporosis and falls in the outpatients setting.SettingFalls and Fractures Clinic (FFC) at Nepean Hospital (Penrith, NSW, Australia).ParticipantsPre-effects and posteffects assessment of 106 community-dwelling older patients referred from the community.Primary and secondary outcome measuresPrevious falls and fractures were recorded. Clinical, functional and paraclinical evaluations were performed. A comprehensive multidisciplinary care plan was then tailored based on the presence of risk factors. Six-month follow-ups were performed assessing the incidence of falls and fractures, change in risk factors for falls and level of risk, with the recommended plan.ResultsWe report ...
Experimental gerontology, 2017
Lamin A is a protein of the nuclear lamina. Low levels of lamin A expression are associated with ... more Lamin A is a protein of the nuclear lamina. Low levels of lamin A expression are associated with osteosarcopenia in mice. In this study, we hypothesized that low lamin A expression is also associated with frailty in humans. We aimed to develop a non-invasive method to quantify lamin A expression in epithelial and circulating osteoprogenitor (COP) cells, and to determine the relationship between lamin A expression and frailty in older individuals. COP cells and buccal swabs were obtained from 66 subjects (median age 74; 60% female; 26 non-frail, 23 pre-frail, and 17 frail) participating at the Nepean Osteoporosis and Frailty (NOF) Study. We quantified physical performance and disability, and stratified frailty in this population. Lamin A expression in epithelial and COP cells was quantified by flow cytometry. Linear regression models estimated the relationship between lamin A expression in buccal and COP cells, and prevalent disability and frailty. Lamin A expression in buccal cells ...
Experimental gerontology, Oct 6, 2017
Circulating osteoprogenitor (COP) cells are blood-borne cells which express a variety of osteobla... more Circulating osteoprogenitor (COP) cells are blood-borne cells which express a variety of osteoblastic markers and are able to form bone nodules in vivo. Whereas a high percentage of COP cells (%COP) is associated with vascular calcification, low %COP has been associated with disability and frailty. However, the reference range of %COP in age- and gender-matching populations, and the age-related changes in %COP remain unknown. A cross-sectional study was undertaken in 144 healthy volunteers in Western Sydney (20-90year-old, 10 male and 10 female subjects per decade). %COP was quantified by flow cytometry. A high inter-and intra-rater reliability was found. In average, in this healthy population average of %COP was 0.42. There was no significant difference in %COP among the age groups. Similarly, no significant difference was found in %COP with gender, weight, height or BMI. In addition, we identified a normal reference range of %COP of 0.1-3.8%. In conclusion, in addition to the iden...
Osteoporosis in Older Persons, 2016
Archives of gerontology and geriatrics, Jan 20, 2016
Although sarcopenic obesity is associated with disability in middle-aged community-dwelling indiv... more Although sarcopenic obesity is associated with disability in middle-aged community-dwelling individuals, the phenotype of sarcopenic obesity in people 65 and older, especially those with a history of falls, remain unknown. To fill this knowledge gap, the goal of this study was to obtain a comprehensive phenotype of sarcopenic obesity in this high-risk population. Cross-sectional study of 680 subjects (mean age=79±9, 65% female) assessed between 2009 and 2013 at the Falls and Fractures Clinic, Nepean Hospital (Penrith, Australia). The assessment included a comprehensive examination, posturography, gait velocity, grip strength, bone densitometry and body composition by DXA, and blood tests for biochemical status. Patients were divided into four groups based on DXA and clinical criteria: 1) sarcopenic obese; 2) non-sarcopenic obese; 3) sarcopenic and; 4) non-sarcopenic/non-obese. The difference between groups was assessed by one-way ANOVA, chi-square analysis, and multivariable linear ...
The journal of nutrition, health & aging, 2014
In older persons, the combination of osteoporosis and sarcopenia has been proposed as a subset of... more In older persons, the combination of osteoporosis and sarcopenia has been proposed as a subset of frailer individuals at higher risk of falls and fractures. However, the particular nutritional status of the sarco-osteoporotic (SOP) patients remains unknown. The goal of this study was to obtain a comprehensive picture of nutritional status in SOP patients. Cross-sectional study. Falls and Fractures Clinic, Nepean Hospital (Penrith, Australia). 680 subjects (mean age=79, 65% female) assessed between 2008-2013. Assessment included medical history, mini-nutritional assessment, physical examination, bone densitometry and body composition by DXA, and blood tests for nutritional status (albumin, creatinine, hemoglobin, vitamin D, vitamin B-12, calcium, phosphate and folate). Patients were divided in 4 groups: 1) osteopenia/osteoporosis (BMD&lt;-1.0 SD); 2) sarcopenia; 3) SOP; and 4) normal (no sarcopenia/no osteoporosis). Difference between groups was assessed with one-way ANOVA and chi square analysis. Multivariable linear regression evaluated the association between the groups and measures of nutritional parameters. Sarcopenia was present in 47.4% of those with osteopenia (167/352) and 62.7% in those with osteoporosis (91/145). Mean age of the SOP was 80.4±7 years. SOP patients showed significantly higher prevalence of falls and fractures. Univariate analyses showed that SOP were more likely than normal to have a BMI&lt; 25 (OR 2.42 95%CI 1.45-4.041, p&lt;0.001), a MNA score &lt;12 (OR 2.0, 95%CI 1.15-3.49, p&lt;0.05), serum folate &lt;20 nmol/L (OR 4.0 95%CI 1.35-11.87, p&lt;0.01) and hemoglobin &lt;120g/L (OR 2.0 95%CI 1.28-3.30, p&lt;0.01). Multivariate analysis showed that a MNA score &lt;12 was independently associated with SOP compared to normal when adjusted for age and gender. Hemoglobin &lt;120g/L, BMI &lt;25, and GDS &gt;6 remained independently associated with SOP after adjustment for all variables including inflammatory conditions. Hypoalbuminemia (&lt;35 g/L) was associated with just osteopenia/osteoporosis (OR: 2.03, 95%CI 1.08-3.81, p&lt;0.01) and just sarcopenia (OR: 1.77, 95%CI 1.0-3.0, p&lt;0.01) compared to normal. No differences in vitamin D, glomerular filtration rate, albumin, corrected calcium, phosphate, red blood cells folate or vitamin B12 levels were found between the subgroups. In approaching SOP patients, early prevention protocols directed to optimize their nutritional status would be a key strategy to prevent poor outcomes such as falls and fractures in this high risk population. Therefore, nutritional assessment and early nutritional supplementation should be essential domains in this strategy.
Journal of Nutrition, Health and Aging, 2012
Postural instability (PI) is an important risk factor for falls, especially in the frail older po... more Postural instability (PI) is an important risk factor for falls, especially in the frail older population. In this study, we investigated the impact of vitamin D deficiency on PI in a sample of community dwelling older subjects. Our objective was to determine the potential association between vitamin D deficiency and PI in older fallers.
Journal of the American Medical Directors Association, Jan 12, 2014
In older persons, the combination of osteopenia/osteoporosis and sarcopenia has been proposed as ... more In older persons, the combination of osteopenia/osteoporosis and sarcopenia has been proposed as a subset of frailer individuals at higher risk of institutionalization, falls, and fractures. However, the particular clinical, biochemical, and functional characteristics of the osteosarcopenic (OS) patients remain unknown. In this study, we used a clinical definition of osteosarcopenia aiming to determine the clinical, functional, and biochemical features that are unique to these patients within a population of older people who fall. Cross-sectional study. Falls and Fractures Clinic, Nepean Hospital (Penrith, NSW, Australia). A total of 680 people (mean age = 79, 65% women) assessed between 2009 and 2013. Assessment included medical history, physical examination, bone densitometry and body composition by dual-energy X-ray absorptiometry, posturography, grip strength, gait parameters (GaitRITE), and blood tests for nutrition and secondary causes of sarcopenia and osteoporosis. Patients ...
Journal of Geriatric Physical Therapy, 2019
Background and Purpose: Acute hospitalization can result in significant decline in functional abi... more Background and Purpose: Acute hospitalization can result in significant decline in functional ability, known as hospital-associated deconditioning. Older adults are most vulnerable, with resultant functional difficulties and increased risk of institutionalization. This study evaluates the effectiveness of a multidisciplinary acute rehabilitation program in hospital-associated deconditioning on routinely collected outcome data to examine its impact to determine whether a controlled trial is warranted. Methods: We conducted a retrospective review of the hospital database for the national rehabilitation clinical registry for 2013 and 2014. We analyzed responses from patient feedback questionnaires over a 2-year period to assess patient experience of the rehabilitation program. Results and Discussion: The analysis included 289 patients referred to our acute rehabilitation program. Most patients were aged 81-90 years, representing 47% (n = 137) of all admissions. The main impairment group was deconditioning (54%). The median entry time to the acute rehabilitation program for this impairment group was 5 days from admission and length of stay in the rehabilitation program was 9 days. Many of these patients (57%) were directly discharged home, with only 21% needing transfer for inpatient rehabilitation. The average Functional Independence Measure score gain was 22 for the patients directly discharged home, with an average discharge Functional Independence Measure score of 94/126. Of the patient feedback responses received (response rate: 24%), 96% rated the program as very good or good. We observed improved functional outcomes among program participants, with the majority directly discharged home, reduced transfer to rehabilitation hospitals, and patient acceptance of this acute rehabilitation program. Conclusion: These promising results suggest that a more rigorous evaluation of this acute rehabilitation program in the management of hospital-associated deconditioning is warranted.
Maturitas, 2018
The combination of osteopenia/osteoporosis and sarcopenia (osteosarcopenia) defines a diagnostic ... more The combination of osteopenia/osteoporosis and sarcopenia (osteosarcopenia) defines a diagnostic subset of individuals at higher risk of falls, fractures and institutionalization. In this study we aimed to assess the potential role of high serum levels of parathyroid hormone (PTH) in osteosarcopenia. We hypothesized that a high PTH level is one of the major determinants of this syndrome. Cross-sectional study in 400 subjects (mean age = 79, 65% women) assessed between 2009 and 2014 at the Falls and Fractures Clinic, Nepean Hospital (Penrith, Australia). Medical history, physical examination, bone densitometry, body composition, posturography, grip strength, gait parameters, and blood tests for nutrition and secondary causes of sarcopenia and osteoporosis. Patients were assigned to one of four groups: 1) osteopenic/osteoporotic; 2) sarcopenic; 3) osteosarcopenic; or 4) non-sarcopenic/non-osteopenic. Patients with abnormal corrected calcium levels were excluded from analysis. Between-...
Calcified Tissue International
BMC Musculoskeletal Disorders
Background Care pathways are generally paper-based and can cause communication failures between m... more Background Care pathways are generally paper-based and can cause communication failures between multidisciplinary teams, potentially compromising the safety of the patient. Computerized care pathways may facilitate better communication between clinical teams. This study aimed to investigate whether an electronic care pathway (e-pathway) reduces delays in surgery and hospital length of stay compared to a traditional paper-based care pathway (control) in hip fracture patients. Methods A single-centre evaluation with a retrospective control group was conducted in the Orthogeriatric Ward, Nepean Hospital, New South Wales, Australia. We enrolled patients aged > 65 years that were hospitalized for a hip fracture in 2008 (control group) and 2012 (e-pathway group). The e-pathway provided the essential steps in the care of patients with hip fracture, including examinations and treatment to be carried out. Main outcome measures were delay in surgery and hospital length of stay; secondary o...
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Papers by Pushpa Suriyaarachchi