Displaying publications 1 - 20 of 110 in total

Abstract:
Sort:
  1. Ng SS, Kwan MK, Ahmad TS
    Med J Malaysia, 2006 Dec;61 Suppl B:13-7.
    PMID: 17600987
    This study is designed to evaluate twenty patients after sural nerve harvest using the single longitudinal incision method. The area of sensory loss to pin prick was assessed by the authors at different intervals. Donor site factors, scar cosmesis, functional status and complications were assessed using a questionnaire. The mean area of anaesthesia at one month was 65 cm2 and it had reduced by 77% to 15 cm2 at one and a half years. The mean area of reduced sensation was 49 cm2 at one month and it increased by 18% to 58 cm2 over the same period. Therefore, the total area of sensory deficit was reduced by 36% from 114 cm2 at one month to 73 cm2 at one and a half years. Subjective patient evaluation indicated moderate level of pain during immediate post surgical period, which reduced significantly at one month. A low level of neuroma symptoms was recorded throughout the study period. At a mean follow-up period of two years, there was no area of anaesthesia in 50% of the patients. Mean area of anaesthesia for all patients was 12 cm2 and mean area of reduced sensation was 55 cm2. Subjective patient evaluation indicated a low level of pain, neuroma symptoms and numbness over the sural nerve sensory distribution. Twenty five percent of the patients were not satisfied with the scar appearance. Function and daily activities were not affected significantly. No surgical complications were observed.
    Matched MeSH terms: Arm/innervation; Arm Injuries/surgery*
  2. Ng ES, Ting JR, Foo SL, Akram SA, Fadzlina AA, Alywiah JS, et al.
    Med J Malaysia, 2006 Dec;61 Suppl B:23-6.
    PMID: 17600989
    The conventional upper arm tourniquet used for hand and wrist operations may cause significant discomfort to patient when the procedure is performed under local anaesthesia. Forearm tourniquet causes less muscle ischeamia and pain. The discomfort experienced while using a forearm and upper arm tourniquet was assessed in 96 healthy subjects. Tourniquet placed on both sides was inflated sequentially to 250mmhg for five minutes on different hand. The discomfort level was assessed using a small visual analogue scale and complications were recorded. In the upper arm tourniquet, 24.9% had mild, 60.5% had moderate and 14.6% had severe pain whereas with forearm tourniquet, 99% had mild pain and only 1% had moderate pain. Seventy-nine percent of the subjects tested with forearm tourniquet had no discomfort at all. The average discomfort level for upper arm and forearm tourniquet was 4.72 and 0.39 respectively, which is statistically significant. Complications that were observed only in upper arm tourniquet included prolonged tingling, burning sensation and discomfort and stiffness of the upper limb. We concluded that forearm tourniquet was safe and well tolerated and should be used more often when indicated.
    Matched MeSH terms: Arm/surgery*; Forearm/surgery*
  3. Qamruddin AA, Nik Husain NR, Sidek MY, Hanafi MH, Ripin ZM, Ali N
    J Occup Health, 2019 Nov;61(6):498-507.
    PMID: 31364246 DOI: 10.1002/1348-9585.12078
    BACKGROUND: Prolonged exposure to hand-arm vibration is associated with a disorder of the vascular, neurological, and musculoskeletal systems of the upper limb known as hand-arm vibration syndrome (HAVS). Currently, the evidence of HAVS in tropical environments is limited.

    OBJECTIVES: To determine the prevalence and severity of HAVS among tyre shop workers in Kelantan, Malaysia.

    METHODS: A cross-sectional study involving 200 tyre shop workers from two districts in Kelantan was performed. Part one data were collected at the field using questionnaire, and hand-arm vibration was measured. Part two involved a set of hand clinical examinations. The workers were divided into high (≥5 m s-2 ) and low/moderate (<5 m s-2 ) exposure group according to their 8-hr time weighted average [A(8)] of vibration exposure. The differences between the two exposure group were then compared.

    RESULTS: The prevalence of the vascular, neurological, and musculoskeletal symptoms was 12.5% (95% CI 10.16 to 14.84), 37.0% (95% CI 30.31 to 43.69), and 44.5% (95% CI 37.61 to 51.38) respectively. When divided according to their exposure statuses, there was a significant difference in the prevalence of HAVS for all three components of vascular, neurological, and musculoskeletal (22.68% vs 2.91%, 62.89% vs 12.62% and 50.52% and 38.83%) respectively. All the clinical examinations findings also significantly differed between the two groups with the high exposure group having a higher abnormal result.

    CONCLUSION: Exposure to high A(8) of vibration exposure was associated with a higher prevalence of all three component of HAVS. There is a need for better control of vibration exposure in Malaysia.

    Matched MeSH terms: Hand-Arm Vibration Syndrome/etiology*
  4. Qamruddin AA, Husain NRN, Sidek MY, Hanafi MH, Ripin ZM, Ali N
    Int J Occup Saf Ergon, 2020 Dec 03.
    PMID: 33148113 DOI: 10.1080/10803548.2020.1846924
    Objectives. Exposure to hand-arm vibration (HAV) is associated with hand-arm vascular syndrome (HAVS), which is characterized by musculoskeletal complications. However, evidence on this matter has been inconclusive. Therefore, this study aimed to determine and compare the prevalence of musculoskeletal complications of HAVS between a high-exposure (≥5 m·s-2) group and a low-moderate-exposure (<5 m·s-2) group and to explore the factors associated with the musculoskeletal complications of HAVS among tyre shop workers in Kelantan, Malaysia. Methods. A cross-sectional study involving 200 tyre shop workers was carried out. HAV was measured by a vibration meter. The workers were divided into two exposure groups - according to their 8-h time-weighted average, A(8), of vibration exposure - and compared. Results. Almost half of the workers reported musculoskeletal complications of the upper limbs and neck. Only the lifetime vibration dose (LVD) was significantly associated with the development of musculoskeletal complications. Conclusion. The high-exposure group had a higher prevalence of musculoskeletal complications. Only the LVD was significantly associated with complications. However, all factors of the work system, such as ergonomics, handgrip force and posture, might contribute to the development of musculoskeletal complications of HAVS and should be included in assessments.
    Matched MeSH terms: Hand-Arm Vibration Syndrome
  5. Tamrin SB, Jamalohdin MN, Ng YG, Maeda S, Ali NA
    Ind Health, 2012;50(2):156-63.
    PMID: 22293728
    The objectives of this study are to determine the prevalence of hand-arm vibration syndrome (HAVS) and the characteristics of the vibrotactile perception threshold (VPT) among users of hand-held vibrating tools working in a tropical environment. A cross sectional study was done among 47 shipyard workers using instruments and a questionnaire to determine HAVS related symptoms. The vibration acceleration magnitude was determined using a Human Vibration Meter (Maestro). A P8 Pallesthesiometer (EMSON-MAT, Poland) was used to determine the VPT of index and little finger at frequencies of 31.5 Hz and 125 Hz. The mean reference threshold shift was determined from the reference threshold shift derived from the VPT value. The results show a moderate prevalence of HAVS (49%) among the shipyard workers. They were exposed to the same high intensity level of HAVS (mean = 4.19 ± 1.94 m/s(2)) from the use of vibrating hand-held tools. The VPT values were found to be higher for both fingers and both frequencies (index, 31.5 Hz = 110.91 ± 7.36 dB, 125 Hz = 117.0 ± 10.25 dB; little, 31.5 Hz = 110.70 ± 6.75 dB, 125 Hz = 117.71 ± 10.25 dB) compared to the normal healthy population with a mean threshold shift of between 9.20 to 10.61 decibels. The frequency of 31.5 Hz had a higher percentage of positive mean reference threshold shift (index finger=93.6%, little finger=100%) compared to 125 Hz (index finger=85.1%, little finger=78.7%). In conclusion, the prevalence of HAVS was lower than those working in a cold environment; however, all workers had a higher mean VPT value compared to the normal population with all those reported as having HAVS showing a positive mean reference threshold shift of VPT value.
    Matched MeSH terms: Hand-Arm Vibration Syndrome
  6. Abd Razak NA, Abu Osman NA, Gholizadeh H, Ali S
    Biomed Eng Online, 2014;13:134.
    PMID: 25208636 DOI: 10.1186/1475-925X-13-134
    Understanding of kinematics force applied at the elbow is important in many fields, including biomechanics, biomedical engineering and rehabilitation. This paper provides a comparison of a mathematical model of elbow joint using three different types of prosthetics for transhumeral user, and characterizes the forces required to overcome the passive mechanical of the prosthetics at the residual limb.
    Matched MeSH terms: Arm/physiology
  7. Hoque A, Islam MT, Almutairi AF
    Sensors (Basel), 2020 Jun 11;20(11).
    PMID: 32545228 DOI: 10.3390/s20113323
    A low-profile high-directivity, and double-negative (DNG) metamaterial-loaded antenna with a slotted patch is proposed for the 5G application. The radiated slotted arm as a V shape has been extended to provide a low-profile feature with a two-isometric view square patch structure, which accelerates the electromagnetic (EM) resonance. Besides, the tapered patch with two vertically split parabolic horns and the unit cell metamaterial expedite achieve more directive radiation. Two adjacent splits with meta units enhance the surface current to modify the actual electric current, which is induced by a substrate-isolated EM field. As a result, the slotted antenna shows a 7.14 dBi realized gain with 80% radiation efficiency, which is quite significant. The operation bandwidth is 4.27-4.40 GHz, and characteristic impedance approximately remains the same (50 Ω) to give a VSWR (voltage Standing wave ratio) of less than 2, which is ideal for the expected application field. The overall size of the antenna is 60 × 40 × 1.52 mm. Hence, it has potential for future 5G applications, like Internet of Things (IoT), healthcare systems, smart homes, etc.
    Matched MeSH terms: Arm
  8. Yusof KM, Groen K, Rosli R, Abdullah M, Mahmud R, Avery-Kiejda KA
    Int J Mol Sci, 2022 Sep 26;23(19).
    PMID: 36232660 DOI: 10.3390/ijms231911359
    Breast cancer-related lymphedema (BCRL) is a form of secondary lymphedema that is characterized by abnormal swelling of one or both arms due to the accumulation of lymph fluid in the interstitial tissue spaces, resulting from obstruction of the lymphatic vessels due to surgery insults, radiotherapy, or chemotherapy. Due to the multifactorial nature of this condition, the pathogenesis of secondary lymphedema remains unclear and the search for molecular factors associated with the condition is ongoing. This study aimed to identify serum microRNAs and adipokines associated with BCRL. Blood was collected from 113 breast cancer survivors and processed to obtain serum for small RNA-sequencing (BCRL vs. non-BCRL, n = 7 per group). MicroRNAs that were differentially expressed (fold change >1.5, p < 0.05) between lymphedema cases and those without lymphedema were further quantified in a validation cohort through quantitative reverse transcription PCR (BCRL n = 16, non-BCRL, n = 83). Leptin and adiponectin levels were measured in a combined cohort (BCRL n = 23, non-BCRL n = 90) using enzyme-linked immunosorbent assays. Two of the most significantly upregulated microRNAs, miR-199a-3p and miR-151a-3p, were strongly correlated with the onset of lymphedema and diabetes mellitus in the BCRL group. Leptin levels were higher in the BCRL cohort compared to the non-BCRL cohort (p < 0.05). A metabolic syndrome biomarker, the adiponectin/leptin ratio, was found to be lower in the BCRL group than in the non-BCRL group (median: 0.28 vs. 0.41, p < 0.05). Extensive studies on the mechanisms of the identified microRNAs and association of leptin with arm lymphedema may provide new insights on the potential biomarkers for lymphedema that should be followed up in a prospective cohort study.
    Matched MeSH terms: Arm/pathology
  9. Su TA, Hoe VC, Masilamani R, Awang Mahmud AB
    Occup Environ Med, 2011 Jan;68(1):58-63.
    PMID: 20935287 DOI: 10.1136/oem.2009.052373
    To determine the extent of hand transmitted vibration exposure problems, particularly hand-arm vibration syndrome (HAVS), among construction workers in Malaysia.
    Matched MeSH terms: Hand-Arm Vibration Syndrome/etiology; Hand-Arm Vibration Syndrome/epidemiology*
  10. Leonard JH, Kok KS, Ayiesha R, Das S, Roslizawati N, Vikram M, et al.
    Clin Ter, 2010;161(1):29-33.
    PMID: 20393675
    Work related musculoskeletal disorders represent a serious public health problem as it is a leading cause for disability and absenteeism in workers. The main purpose of the present quasi-experimental study was to compare the muscle activity of the upper trapezius in subjects with neck pain and compare it to those of normal subjects.

    Study site: Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM)
    Matched MeSH terms: Arm/physiopathology
  11. Abdullah BJ, Mohammad N, Sangkar JV, Abd Aziz YF, Gan GG, Goh KY, et al.
    Br J Radiol, 2005 Jul;78(931):596-600.
    PMID: 15961840
    The objective of this study was to prospectively determine the incidence of venous thrombosis (VT) in the upper limbs in patients with peripherally inserted central catheters (PICC). We prospectively investigated the incidence of VT in the upper limbs of 26 patients who had PICC inserted. The inclusion criteria were all patients who had a PICC inserted, whilst the exclusion criterion was the inability to perform a venogram (allergies, previous contrast medium reaction and inability of gaining venous access). Both valved and non-valved catheters were evaluated. Prior to removal of the PICC, an upper limb venogram was performed. The number of segments involved with VT were determined. The duration of central venous catheterization was classified as; less than 6 days, between 6 days and 14 days and more than 14 days. VT was confirmed in 38.5% (10/26) of the patients. The majority 85.7% (12/14) were complete occlusive thrombi and the majority of VT only involved one segment. There was no statistical correlation between the site of insertion of the PICC and the location of VT. Neither was there any observed correlation between the occurrence of VT with the patient's history of hypertension, hypercholesterolaemia, coronary artery disease, diabetes mellitus, cardiac insufficiency, smoking or cancer. There was also no statistical correlation with the size of the catheter. In conclusion, PICCs are associated with a significant risk of upper extremity deep vein thrombosis (UEVT).
    Matched MeSH terms: Arm/blood supply*
  12. Harwant S, Borhan TA
    Med J Malaysia, 2000 Sep;55(3):311-7.
    PMID: 11200710
    156 consecutive children with supracondylar fracture humerus were reviewed. Of these, 56 children with severely displaced fractures were treated with side arm traction. A retrospective review revealed that a mean post-reduction Baumann angle of 74.2 degrees for boys and 75.9 degrees for girls; and mean post-reduction humero-ulna angle of 11.6 degrees for boys and 12.7 degrees for girls was achieved. A linear correlation was noted between the duration of traction and the age of the patient, older patients requiring longer traction. The region below the line in the graph, plotting the duration of traction (y-axis) versus the age of the patient (x-axis) shows when the fracture is unstable; and the region above the line shows when the fracture is stable and can only be reduced by surgery. 10 children presented late; 6 presented within the unstable period and were successfully reduced with traction; while 4 presented stable and required open reduction. We conclude that traction is an acceptable and safe method for reduction of this fracture, and can be used to reduce late presentations while their fractures are still unstable.
    Matched MeSH terms: Arm*
  13. Mat Yudin ZA, Wan Ahmed WA, Chanmekun SB
    Malays Fam Physician, 2019;14(2):44-45.
    PMID: 31827738
    Elbow injuries are common in children. Supracondylar fractures occurred in 16% of all pediatric fractures. Supracondylar fractures can be classified into 4 types according to the Gartland classification, depending on the degree of the fracture present in the lateral radiograph. This case highlights the case of a child with a Gartland Type I fracture. A misdiagnosis of this fracture will compromise the management of the injury with regards to immobilization and subsequent care. As this injury can be managed on an outpatient basis, primary care frontliners need to be aware of the condition.
    Matched MeSH terms: Arm Injuries
  14. Chen ST
    J Singapore Paediatr Soc, 1990;32(3-4):87-96.
    PMID: 2133762
    126 Malaysian children, 65 boys and 61 girls from higher income families were followed-up regularly from birth to six years of age in the University Hospital, Kuala Lumpur. The study shows that for boys and girls, there is a progressive increase in the left mid-upper arm circumference from birth to six years of age. However the rate of growth is not even, being most rapid during the first four month of infancy, then rapidly decreases during the middle third of infancy and thereafter it decreases slowly and by the second year of life, there is hardly any increase in the arm circumference. The left triceps skinfold thickness curves for boys and girls rise rapidly after birth to reach a peak at about three to five months before commencing to decline and then flatten off from the second year of life. The study also shows that on the whole, boys have slightly bigger arm circumference than girls during the first two years of life. From two years of age, girls on the average have more fat than boys. However this difference is statistically not significant at the ages tested. This paper also presents the left mid-upper arm circumference and left triceps skinfold percentile charts of Malaysian boys and girls from birth to six years of age.
    Matched MeSH terms: Arm/growth & development*
  15. Khoo C, Chu G, Rosaida MS, Chidambaram SK
    J R Coll Physicians Edinb, 2016 Dec;46(4):241-243.
    PMID: 28504777 DOI: 10.4997/JRCPE.2016.406
    A 44-year-old woman was admitted to our hospital with dengue fever. She developed a haematoma in the right arm at the site of a previous arterial line insertion. Due to coexisting thrombocytopenia, the bleeding was severe enough to cause compartment syndrome. An emergency fasciotomy was performed and her limb salvaged. The case illustrates one important potential complication of this common infectious disease.
    Matched MeSH terms: Arm
  16. Navedur Rehman, Chin Chwen Ch’ng, Thavin Kumar Mathana Sundram, Eugenie Sin Sing Tan, Chew Kek Lee, Chung Keat Tan3
    MyJurnal
    Introduction: Acne vulgaris is a chronic inflammatory dermatosis caused by Propionibacterium acnes. Clinicians are constantly attempting to discover the best antibiotic regimes in treating acne vulgaris. This study compares two regimens in terms of efficacy, tolerability, compliance and recurrence rate to make recommendation on which is the best regime. Methods: An open-labelled prospective randomized investigator-blinded interventional study was carried on moderate acne vulgaris patients. Patients were assigned to treatment arm at enrolment followed by fol- low-up and maintenance visits. Demographic data were collected at enrolment and questionnaire enquiring acne condition, general health and quality of life impairment were filled at every visit followed by blinded dermatologist assessment. Antibiotic tablets were provided based on assigned arm until follow-up 3. Results: 26 mild acne vulgaris patients aged 17 to 29 years were recruited. Physician assessment based on GAGS and photo assessment analysis showed an overall significant change (p0.05) were found between regimens. Similarly, patient self-perceived assessment and CADI assessment also showed overall significant changes (p
    Matched MeSH terms: Arm
  17. Ampomah K, Amano S, Wages NP, Volz L, Clift R, Ludin AFM, et al.
    Med Sci Sports Exerc, 2019 09;51(9):1817-1827.
    PMID: 30913160 DOI: 10.1249/MSS.0000000000001984
    PURPOSE: The goal of this trial was to determine whether low-load blood flow-restricted (BFR) exercise of appendicular muscles induces a cross-transfer of effect to the trunk extensor (TE) muscles, such that low-load TE exercise would enhance TE size and function to a greater extent than standard low-load exercise in people with recurrent low back pain (LBP). We also investigated the direct effects of BFR exercise in the appendicular muscles.

    METHODS: Thirty-two adults with recurrent, nonspecific LBP were randomized into two groups: Appendicular BFR exercise (BFR exercise) or control exercise (CON exercise). All participants trained (two times per week) for 10 wk, with a 12-wk follow-up. Participants performed three sets of leg extension (LE), plantar flexion (PF), and elbow flexion (EF) exercises followed by low-load TE exercise without BFR. Outcome measures included magnetic resonance imaging-derived muscle size (quadriceps and TE), strength (LE, PF, EF, and TE), and endurance (LE and TE).

    RESULTS: There was no evidence for a cross-transfer of effect to the TE. There was also no statistically significant enhancement of limb skeletal muscle size or function of BFR relative to CON exercise at any time point; though, moderate effect sizes for BFR exercise were observed for enhanced muscle size and strength in the leg extensors.

    CONCLUSIONS: Low-load BFR exercise of the appendicular muscles did not result in a cross-transfer of effect to the TE musculature. There was also no significant benefit of low-load BFR exercise on the appendicular muscle size and function, suggesting no benefit from low-load BFR exercise in adults with recurrent, nonspecific LBP.

    Matched MeSH terms: Arm/physiology
  18. Suria-Hayati MP, Siti-Aishah MA, Eshagroni A, Jamari S, Abdolvahab F, Yazmin Y, et al.
    Clin Ter, 2012;163(3):215-7.
    PMID: 22964694
    Epithelioid sarcoma is a very infrequent soft tissue sarcoma involving predominantly distal extremities of adolescent and young adult. We hereby report a case of epithelioid sarcoma in a 34-year-old young adult who presented with 1-year history of a painful left upper limb associated subsequently with warm left forearm swelling and a Volkman contracture. He was treated as an inflamed soft tissue condition of the left upper limb. A computed tomography study showed presence of multiple hypodense lesions mainly in the flexor compartment of the left arm as well at the subcutaneous tissue, which measured 1 to 1.7 cm in diameter. Histological examination of the left upper limb mass showed nodular proliferation of epithelioid tumour cells and some with rhabdoid features surrounding a central zone of necrosis and was diagnosed as epithelioid sarcoma. Concurrent presence of epithelioid sarcoma and Volkman ischaemic contracture are rarely seen in clinical practice. The present case highlights the importance of the histology which can be confused with other types of sarcoma or chronic granuloma and even missed at times thereby causing diagnostic problems.
    Matched MeSH terms: Arm*; Sarcoma/complications*
  19. Hasnan N, Mohamad Saadon NS, Hamzaid NA, Teoh MX, Ahmadi S, Davis GM
    Medicine (Baltimore), 2018 Oct;97(43):e12922.
    PMID: 30412097 DOI: 10.1097/MD.0000000000012922
    This study compared muscle oxygenation (StO2) during arm cranking (ACE), functional electrical stimulation-evoked leg cycling (FES-LCE), and hybrid (ACE+FES-LCE) exercise in spinal cord injury individuals. Eight subjects with C7-T12 lesions performed exercises at 3 submaximal intensities. StO2 was measured during rest and exercise at 40%, 60%, and 80% of subjects' oxygen uptake (VO2) peak using near-infrared spectroscopy. StO2 of ACE showed a decrease whereas in ACE+FES-LCE, the arm muscles demonstrated increasing StO2 from rest in all of VO2) peak respectively. StO2 of FES-LCE displayed a decrease at 40% VO2 peak and steady increase for 60% and 80%, whereas ACE+FES-LCE revealed a steady increase from rest at all VO2 peak. ACE+FES-LCE elicited greater StO2 in both limbs which suggested that during this exercise, upper- and lower-limb muscles have higher blood flow and improved oxygenation compared to ACE or FES-LCE performed alone.
    Matched MeSH terms: Arm/blood supply; Arm/physiology*
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links