1.Cold allodynia as the presenting symptom in a case of acquired neuromyotonia (Isaacs syndrome) with multiple autoantibodies
Khean-Jin Goh ; Suhailah Abdullah ; Won Fen Wong ; Swan-Sim Yeap ; Nortina Shahrizaila ; Chong-Tin Tan
Neurology Asia 2014;19(4):409-412
We report a patient who presented with severe cold-induced allodynia and hyperhidrosis, and found to
have acquired neuromyotonia (Isaacs syndrome) with high voltage-gated potassium channel (VGKC)
antibody titre,positive contactin-associated protein 2 (CASPR2) and leucine-rich glioma-inactivated
1 (LGI1) antibodies. The patient also had positive anti-dsDNA and acetylcholine receptor (AChR)
antibodies without clinical features of SLE or myasthenia gravis, suggesting a strong underlying
autoimmune tendency. CT thorax showed no thymoma. Her symptoms improved with intravenous
immunoglobulin infusion but recurred despite maintenance oral corticosteroids and carbamazepine.
She has since been on regular IVIG infusions. Cold allodynia is an unusual presentation in acquired
neuromyotonia.
2.Letter: Sarcopenia and vertebral fracture
Fen Lee HEW ; Siew Pheng CHAN ; Swan Sim YEAP
Osteoporosis and Sarcopenia 2018;4(4):151-151
No abstract available.
Sarcopenia
3.Response to the Editor: Reply on “Combined orthogeriatric and fracture liaison service for improved postfracture patient care”.
Swan Sim YEAP ; Fen Lee HEW ; Siew Pheng CHAN
Osteoporosis and Sarcopenia 2017;3(3):160-160
No abstract available.
Humans
4.The Asian Federation of Osteoporosis Societies' call to action to improve the undertreatment of osteoporosis in Asia.
Swan Sim YEAP ; Unnop JAISAMRARN ; Ye Soo PARK ; Yasuhiro TAKEUCHI ; Weibo XIA
Osteoporosis and Sarcopenia 2017;3(4):161-163
No abstract available.
Asia*
;
Asian Continental Ancestry Group*
;
Humans
;
Osteoporosis*
5.The usefulness of osteocalcin measurements in Malaysian patients with rheumatoid arthritis
Tze Hao WONG ; Esha Das GUPTA ; Ammu K RADHAKRISHNAN ; Suk Chyn GUN ; Gandhi CHEMBALINGAM ; Swan Sim YEAP
International e-Journal of Science, Medicine and Education 2018;12(1):4-10
Objective: Rheumatoid arthritis (RA) is a chronic inflammatory condition that can be associated with abnormal bone turnover and hence osteoporosis. Osteocalcin (OC) levels are increased in conditions with high bone turnover, including high RA disease activity. Thus, OC levels could possibly be used as a marker to assess bone health and disease activity in RA patients. As there have been no previous studies looking at serum OC levels in Malaysian RA patients, this study was performed to examine possible correlations between OC, bone mineral density (BMD) and disease activity in this population.Methods: A cross-sectional study of 75 female RA patients and 29 healthy controls was performed. Serum OC was measured using a Quantikine® ELISA kit. Dual-energy x-ray absorptiometry (DXA) was used to assess BMD.Results: Serum OC levels were not significantly different between RA patients (median 14.44 ng/mL, interquartile range [IQR 12.99]) compared to healthy controls (median 11.04 ng/mL IQR 12.29) (p=0.198). Serum OC increased with age (Spearman’s rho r=0.230, p=0.047). There was no significant correlation between serum OC and body mass index (BMI), menopause status, BMD, DAS28, swollen or tender joint counts. Overall, there were 11 (14.7%) patients with osteoporosis and 27 (36.0%) with osteopenia. Menopause status was significantly associated with BMD at all sites (lumbar spine p=0.002, femoral neck p=0.004, total hip p=0.002). Conclusions: Serum OC were similar in RA patients compared to healthy controls. In RA patients, serum OC did not correlate with RA disease activity or BMD. Menopause status remains an important influence on BMD. Thus, measuring serum OC levels in Malaysian RA patients was not useful in identifying those at risk of low BMD.
6.An update of the Malaysian Clinical Guidance on the management of glucocorticoid-induced osteoporosis, 2015.
Swan Sim YEAP ; Fen Lee HEW ; Premitha DAMODARAN ; Winnie CHEE ; Joon Kiong LEE ; Emily Man Lee GOH ; Siew Pheng CHAN
Osteoporosis and Sarcopenia 2017;3(1):1-7
OBJECTIVES: This Clinical Guidance is aimed to help practitioners assess, diagnose and manage their patients with glucocorticoid-induced osteoporosis (GIO), using the best available evidence. METHODS: A literature search using PubMed (MEDLINE) and The Cochrane Library identified all relevant articles on GIO and its assessment, diagnosis and treatment, from 2011, to update from the 2012 edition. The studies were assessed and the level of evidence assigned. For each statement, studies with the highest level of evidence were used to frame the recommendation. RESULTS: Consider treatment early in all patients on glucocorticoids (GC) as fracture risk increases within 3–6 months of starting GC. The decision to start treatment for GIO depends on the presence of prior fracture, category of risk (as calculated using FRAX), daily dose and duration of GC treatment, age, and menopausal status. General measures include adequate calcium and vitamin D intake and reducing the dose of GC to the minimum required to achieve disease control. In patients on GC with osteoporotic fractures or confirmed osteoporosis on dualenergy X-ray absorptiometry, bisphosphonates are the first-line treatment. Treatment should be continued as long as patients remain on GC. Algorithms for the management of GIO in both pre- and post-menopausal women and men have been updated. CONCLUSIONS: In post-menopausal women and men above 50 years, bisphosphonates remain the mainstay of treatment in GIO. In pre-menopausal women and men below 50 years, bisphosphonates are recommended for those with a prevalent fracture or at very high risk only.
Absorptiometry, Photon
;
Adrenal Cortex Hormones
;
Calcium
;
Diagnosis
;
Diphosphonates
;
Female
;
Glucocorticoids
;
Humans
;
Malaysia
;
Male
;
Osteoporosis*
;
Osteoporotic Fractures
;
Vitamin D
7.A summary of the Malaysian Clinical Guidance on the management of postmenopausal and male osteoporosis, 2015.
Swan Sim YEAP ; Fen Lee HEW ; Premitha DAMODARAN ; Winnie CHEE ; Joon Kiong LEE ; Emily Man Lee GOH ; Malik MUMTAZ ; Heng Hing LIM ; Siew Pheng CHAN
Osteoporosis and Sarcopenia 2016;2(1):1-12
AIM: This Clinical Guidance is aimed to help practitioners assess, diagnose and manage their patients with osteoporosis (OP), using the best available evidence. METHODS: A literature search using PubMed (MEDLINE) and The Cochrane Library identified all relevant articles on OP and its assessment, diagnosis and treatment, from 2011, to update from the 2012 edition. The studies were assessed and the level of evidence assigned. For each statement, studies with the highest level of evidence were used to frame the recommendation. RESULTS: This article summarizes the diagnostic and treatment pathways for postmenopausal and male OP, while addressing the risk-benefit ratio for OP treatment. Recognising the limitation of only depending on bone mineral density in assessing fracture risk, a move to assess 10 year fracture risk using tools such as FRAX, is recommended as a guide to decision-making on when to start treatment. A re-evaluation was done of the position of calcium supplementation and on the importance of vitamin D. There has been concern about the potential adverse effects of the long-term usage of bisphosphonates, which have been discussed fully. Algorithms for the management of postmenopausal and male OP have been updated. CONCLUSIONS: Adequate intake of calcium (1000 mg from both diet and supplements) and vitamin D (800 IU) daily remain important adjuncts in the treatment of OP. However, in confirmed OP, pharmacological therapy with anti-resorptives is the mainstay of treatment in both men and postmenopausal women. Patients need to be regularly assessed while on medication and treatment adjusted as appropriate.
Bone Density
;
Calcium
;
Diagnosis
;
Diet
;
Diphosphonates
;
Female
;
Humans
;
Malaysia
;
Male*
;
Osteoporosis*
;
Vitamin D
8.Different reference ranges affect the prevalence of osteoporosis and osteopenia in an urban adult Malaysian population
Swan Sim YEAP ; Subashini C. THAMBIAH ; Intan Nureslyna SAMSUDIN ; Geeta APPANNAH ; Nurunnaim ZAINUDDIN ; Safarina MOHAMAD-ISMUDDIN ; Nasrin SHAHIFAR ; Salmiah MD-SAID ; Siti Yazmin ZAHARI-SHAM ; Subapriya SUPPIAH ; Fen Lee HEW
Osteoporosis and Sarcopenia 2020;6(4):168-172
Objectives:
To determine the prevalence of osteopenia (OPe) and osteoporosis (OP) in an urban adult population in Malaysia, and to compare the change in the prevalence when using a Caucasian compared to an Asian reference range.
Methods:
A cross-sectional random sample of the population aged between 45 and 90 years from the state of Selangor, Malaysia, was invited to attend a bone health check-up. Participants with diseases known to affect bone metabolism or who were on treatment for OP were excluded. Bone mineral density was measured using dual energy X-ray absorptiometry. Based on the World Health Organization definitions, the prevalence of OPe and OP was calculated using the Asian and Caucasian T-scores.
Results:
A total of 342 subjects (222 females, 120 males), with a mean age of 59.68 (standard deviation: 8.89) years, who fulfilled the study criteria were assessed. Based on the Asian reference range, there were 140 (40.9%) subjects with OPe and 48 (14.0%) with OP. On applying the Caucasian reference range, there were 152 (44.4%) subjects with OPe and 79 (23.1%) with OP, with significant increases in males, females, and Chinese ethnic groups. Overall, 75 (21.9%) of subjects had a change in their diagnostic status. T-scores were consistently lower when the Caucasian reference range was used.
Conclusions
In a healthy urban Malaysian population, the prevalence of OP is 14.0% and OPe is 40.9%. Application of a Caucasian reference range significantly increased the number of subjects with OP and may potentially lead to over-treatment.
9.Different reference ranges affect the prevalence of osteoporosis and osteopenia in an urban adult Malaysian population
Swan Sim YEAP ; Subashini C. THAMBIAH ; Intan Nureslyna SAMSUDIN ; Geeta APPANNAH ; Nurunnaim ZAINUDDIN ; Safarina MOHAMAD-ISMUDDIN ; Nasrin SHAHIFAR ; Salmiah MD-SAID ; Siti Yazmin ZAHARI-SHAM ; Subapriya SUPPIAH ; Fen Lee HEW
Osteoporosis and Sarcopenia 2020;6(4):168-172
Objectives:
To determine the prevalence of osteopenia (OPe) and osteoporosis (OP) in an urban adult population in Malaysia, and to compare the change in the prevalence when using a Caucasian compared to an Asian reference range.
Methods:
A cross-sectional random sample of the population aged between 45 and 90 years from the state of Selangor, Malaysia, was invited to attend a bone health check-up. Participants with diseases known to affect bone metabolism or who were on treatment for OP were excluded. Bone mineral density was measured using dual energy X-ray absorptiometry. Based on the World Health Organization definitions, the prevalence of OPe and OP was calculated using the Asian and Caucasian T-scores.
Results:
A total of 342 subjects (222 females, 120 males), with a mean age of 59.68 (standard deviation: 8.89) years, who fulfilled the study criteria were assessed. Based on the Asian reference range, there were 140 (40.9%) subjects with OPe and 48 (14.0%) with OP. On applying the Caucasian reference range, there were 152 (44.4%) subjects with OPe and 79 (23.1%) with OP, with significant increases in males, females, and Chinese ethnic groups. Overall, 75 (21.9%) of subjects had a change in their diagnostic status. T-scores were consistently lower when the Caucasian reference range was used.
Conclusions
In a healthy urban Malaysian population, the prevalence of OP is 14.0% and OPe is 40.9%. Application of a Caucasian reference range significantly increased the number of subjects with OP and may potentially lead to over-treatment.
10.Trends in post osteoporotic hip fracture care from 2010 to 2014 in a private hospital in Malaysia.
Swan Sim YEAP ; M F R NUR FAZIRAH ; C NUR AISYAH ; Siti Yazmin Zahari SHAM ; Intan Nureslyna SAMSUDIN ; Subashini C THAMBIAH ; Fen Lee HEW ; Boon Ping LIM ; Yew Siong SIOW ; Siew Pheng CHAN
Osteoporosis and Sarcopenia 2017;3(2):112-116
OBJECTIVE: Following an osteoporotic fracture, pharmacological treatment is recommended to increase bone mineral density and prevent future fractures. However, the rate of starting treatment after an osteoporotic hip fracture remains low. The objective of this study was to survey the treatment rate following a low-trauma hip fracture at a tertiary private hospital in Malaysia over a period of 5 years. METHODS: The computerised hospital discharge records were searched using the terms “hip,”“femur,”“femoral,”“trochanteric,”“fracture,” or “total hip replacement” for all patients over the age of 50, admitted between 2010 and 2014. The medical charts were obtained and manually searched for demographic data and treatment information. Hip operations done for non–low-trauma-related fracture and arthritis were excluded. RESULTS: Three hundred seventy patients over the age of 50 years were admitted with a hip fracture, of which 258 (69.7%) were low trauma, presumed osteoporotic, hip fractures. The median age was 79.0 years (interquartile range [IQR], 12.0). Following a hip fracture, 36.8% (95 of 258) of the patients received treatment, but out of these, 24.2% (23 of 95) were on calcium/vitamin D only. The median duration of treatment was 1 month (IQR, 2.5). In 2010, 56.7% of the patients received treatment, significantly more than subsequent years 2011–2014, where approximately only 30% received treatment. CONCLUSIONS: Following a low-trauma hip fracture, approximately 72% of patients were not started on active antiosteoporosis therapy. Of those who were, the median duration of treatment was 1 month. This represents a missed opportunity for the prevention of future fractures.
Arthritis
;
Bone Density
;
Hip Fractures
;
Hip*
;
Hospitals, Private*
;
Humans
;
Malaysia*
;
Osteoporosis
;
Osteoporotic Fractures