Displaying publications 41 - 54 of 54 in total

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  1. Ng BW, Azhar AA, Azman MH, Sukri MS, Arvinder-Singh HS, Abdul Wahid AM
    Med J Malaysia, 2020 07;75(4):391-395.
    PMID: 32724000
    INTRODUCTION: Nurses play a vital role in the care and prevention of ulcers in patients with diabetic foot. Patient education, prevention of ulcers and rehabilitation are some of the vital aspects that nurses provide on a daily basis. Thus, good knowledge and attitude of nurses towards diabetic foot ulcers and its care will ensure better patient care.

    OBJECTIVES: The aim is to study the level of knowledge and attitude of nurses towards diabetic foot ulcers and its care in Hospital Segamat, Malaysia.

    METHODS: A validated questionnaire was used between February 2019 to May 2019 covering area such as demography, predisposing factors of ulcer formation, characteristics of ulcers, complications of ulcers, and attitude towards diabetic foot care.

    RESULTS: A total of 101 nurses took part and 57% of the participants scored poorly in the knowledge section of the questionnaire. In all 72% had scored poorly when asked regarding complications of diabetic foot ulcers; 49.5% of the nurses had positive attitude towards diabetic foot care; and 79.3% thought that care for diabetic foot ulcer is timeconsuming. Majority of them think that their colleagues are the main source of information. All demographic variables were deemed to be confounders with the knowledge and attitude of nurses towards diabetic foot ulcers and its care.

    CONCLUSIONS: Nurses in this centre had poor knowledge towards diabetic foot ulcers and its care. None of the variable studied were correlated with the level know knowledge. Good or poor knowledge of nurses does not correspond equally to good or poor attitude towards diabetic foot ulcers care. More frequent formal training of diabetic foot care would be needed to ensure better knowledge.
  2. Ng WC, Lokanathan Y, Baki MM, Fauzi MB, Zainuddin AA, Azman M
    Biomedicines, 2022 Nov 30;10(12).
    PMID: 36551838 DOI: 10.3390/biomedicines10123082
    Glottic insufficiency is widespread in the elderly population and occurs as a result of secondary damage or systemic disease. Tissue engineering is a viable treatment for glottic insufficiency since it aims to restore damaged nerve tissue and revitalize aging muscle. After injection into the biological system, injectable biomaterial delivers cost- and time-effectiveness while acting as a protective shield for cells and biomolecules. This article focuses on injectable biomaterials that transport cells and biomolecules in regenerated tissue, particularly adipose, muscle, and nerve tissue. We propose Wharton's Jelly mesenchymal stem cells (WJMSCs), induced pluripotent stem cells (IP-SCs), basic fibroblast growth factor (bFGF), vascular endothelial growth factor (VEGF), hepatocyte growth factor (HGF), insulin growth factor-1 (IGF-1) and extracellular vesicle (EV) as potential cells and macromolecules to be included into biomaterials, with some particular testing to support them as a promising translational medicine for vocal fold regeneration.
  3. Leong YC, Yeoh CW, Azman MI, Juhari MS, Siti HT
    Malays Orthop J, 2022 Nov;16(3):50-54.
    PMID: 36589379 DOI: 10.5704/MOJ.2211.009
    INTRODUCTION: Rotator cuff pathology is commonly attributed to acromion morphology that is demonstrable in standard AP shoulder radiographs by measuring the critical shoulder angle (CSA), the lateral acromial angle (LAA), and the acromial index (AI). However, these parameters vary among races and countries. Therefore, our study aimed to get the local data on acromion morphology in patients with rotator cuff disease.

    MATERIALS AND METHODS: MRI shoulder reports between January 2012 and June 2018 were reviewed. The study group consisted of 47 patients with rotator cuff injury with a partial or complete tear, and a control group of 37 patients with tendinitis or osteoarthritis and intact rotator cuffs. The CSA, LAA, and AI of both groups were measured on the anteroposterior shoulder radiograph. The risk factors for both groups and the acromion morphology were recorded.

    RESULTS: The CSA for the rotator cuff tear and the control group was 39.08° and 38.28°, LAA was 72.57 ° and 73.51°, and AI was 0.79 and 0.75. The acromion morphology differed in terms of gender, and only LAA was different among the different ethnic groups. There was a negative correlation between age and CSA, age and AI, LAA and CSA, LAA and AI, but a positive correlation between AI and CSA.

    CONCLUSION: The CSA for rotator cuff tear patients in our population was 39.08°, LAA was 72.57°, and AI was 0.79. The acromion morphology was significantly influenced by age and gender.

  4. Mansor WNW, Azman M, Remli R, Yunus MRM, Baki MM
    Ear Nose Throat J, 2023 Mar;102(3):164-169.
    PMID: 33559496 DOI: 10.1177/0145561321993605
    Treating an acutely injured recurrent laryngeal nerve by primary nonselective laryngeal reinnervation (LR) during thyroidectomy is encouraged to minimize postoperative morbidity. Performing a concurrent transoral temporary injection laryngoplasty (IL) may improve the patient's voice while waiting for the effect of successful reinnervation. Chronological multidimensional voice outcomes (qualitative and quantitative) and combination of the primary nonselective LR with concurrent transoral IL were not explicitly demonstrated in previous cases that published the literature. In this study, the authors presented the multidimensional voice parameters of 3 patients undergoing primary nonselective LR with concurrent IL during thyroidectomy. The parameters were measured at different time points (2 weeks and 1, 3, 6, and 12 months) following the surgery. Laryngeal electromyography was done at 1 to 2 months and 12 months postsurgery. The results showed that the voices, qualitatively and quantitatively, were within normal range at within 3 months postintervention. The parameters were slightly beyond the normal limit at 3 months and returned to normal at 6 months postintervention and beyond. The LEMG depicted evidence of successful reinnervation in which the motor unit was normal comparable to the opposite normal vocal fold.
  5. Al-Yahya SN, Baki MM, Saad SM, Azman M, Mohamad AS
    Ann Saudi Med, 2016 8 2;36(4):292-7.
    PMID: 27478916 DOI: 10.5144/0256-4947.2016.292
    A systematic review on laryngopyoceles across Ovid, PubMed, and Google Scholar database was conducted. A total of 61 papers published between 1952 and 2015 were found. Of these, 23 cases written in English, which described the number of cases, surgical approaches, resort to tracheostomy, complications, and outcomes, were shortlisted. Four cases of laryngopyoceles were managed endoscopically using a cold instrument, microdebrider, or laser. Eighteen cases were operated via an external approach, and 1 case applied both approaches. One of 4 endoscopic and 10 of 18 external approaches involved tracheostomy. The present study aimed to report a case of large mixed laryngopyocele that was successfully drained and marsupialized endoscopically using suction diathermy without requiring tracheostomy. Management using suction diathermy for excision and marsupialization of a laryngopyocele has never been reported and can be recommended as a feasible method due to its widespread availability. In the presence of a large laryngopyocele impeding the airway, tracheostomy may be averted in a controlled setting.

    SIMILAR CASES PUBLISHED: None specified.

  6. Za'im NAN, Al-Dhief FT, Azman M, Alsemawi MRM, Abdul Latiff NMA, Mat Baki M
    J Otolaryngol Head Neck Surg, 2023 Sep 20;52(1):62.
    PMID: 37730624 DOI: 10.1186/s40463-023-00661-6
    BACKGROUND: A multidimensional voice quality assessment is recommended for all patients with dysphonia, which requires a patient visit to the otolaryngology clinic. The aim of this study was to determine the accuracy of an online artificial intelligence classifier, the Online Sequential Extreme Learning Machine (OSELM), in detecting voice pathology. In this study, a Malaysian Voice Pathology Database (MVPD), which is the first Malaysian voice database, was created and tested.

    METHODS: The study included 382 participants (252 normal voices and 130 dysphonic voices) in the proposed database MVPD. Complete data were obtained for both groups, including voice samples, laryngostroboscopy videos, and acoustic analysis. The diagnoses of patients with dysphonia were obtained. Each voice sample was anonymized using a code that was specific to each individual and stored in the MVPD. These voice samples were used to train and test the proposed OSELM algorithm. The performance of OSELM was evaluated and compared with other classifiers in terms of the accuracy, sensitivity, and specificity of detecting and differentiating dysphonic voices.

    RESULTS: The accuracy, sensitivity, and specificity of OSELM in detecting normal and dysphonic voices were 90%, 98%, and 73%, respectively. The classifier differentiated between structural and non-structural vocal fold pathology with accuracy, sensitivity, and specificity of 84%, 89%, and 88%, respectively, while it differentiated between malignant and benign lesions with an accuracy, sensitivity, and specificity of 92%, 100%, and 58%, respectively. Compared to other classifiers, OSELM showed superior accuracy and sensitivity in detecting dysphonic voices, differentiating structural versus non-structural vocal fold pathology, and between malignant and benign voice pathology.

    CONCLUSION: The OSELM algorithm exhibited the highest accuracy and sensitivity compared to other classifiers in detecting voice pathology, classifying between malignant and benign lesions, and differentiating between structural and non-structural vocal pathology. Hence, it is a promising artificial intelligence that supports an online application to be used as a screening tool to encourage people to seek medical consultation early for a definitive diagnosis of voice pathology.

  7. Ng WC, Lokanathan Y, Fauzi MB, Baki MM, Zainuddin AA, Phang SJ, et al.
    Sci Rep, 2023 Mar 29;13(1):5128.
    PMID: 36991038 DOI: 10.1038/s41598-023-32080-y
    Glottic insufficiency is one of the voice disorders affecting all demographics. Due to the incomplete closure of the vocal fold, there is a risk of aspiration and ineffective phonation. Current treatments for glottic insufficiency include nerve repair, reinnervation, implantation and injection laryngoplasty. Injection laryngoplasty is favored among these techniques due to its cost-effectiveness and efficiency. However, research into developing an effective injectable for the treatment of glottic insufficiency is currently lacking. Therefore, this study aims to develop an injectable gelatin (G) hydrogel crosslinked with either 1-ethyl-3-(3-dimethylaminpropyl)carbodiimide hydrochloride) (EDC) or genipin (gn). The gelation time, biodegradability and swelling ratio of hydrogels with varying concentrations of gelatin (6-10% G) and genipin (0.1-0.5% gn) were investigated. Some selected formulations were proceeded with rheology, pore size, chemical analysis and in vitro cellular activity of Wharton's Jelly Mesenchymal Stem Cells (WJMSCs), to determine the safety application of the selected hydrogels, for future cell delivery prospect. 6G 0.4gn and 8G 0.4gn were the only hydrogel groups capable of achieving complete gelation within 20 min, exhibiting an elastic modulus between 2 and 10 kPa and a pore size between 100 and 400 μm. Moreover, these hydrogels were biodegradable and biocompatible with WJMSCs, as > 70% viability were observed after 7 days of in vitro culture. Our results suggested 6G 0.4gn and 8G 0.4gn hydrogels as potential cell encapsulation injectates. In light of these findings, future research should focus on characterizing their encapsulation efficiency and exploring the possibility of using these hydrogels as a drug delivery system for vocal fold treatment.
  8. Adzhar AL, Faisham WI, Zulmi W, Azman WS, Sahran Y, Syurahbil AH, et al.
    Malays Orthop J, 2023 Jul;17(2):21-27.
    PMID: 37583532 DOI: 10.5704/MOJ.2307.004
    INTRODUCTION: Total femur replacement is an option instead of amputation for extensive bone tumour or after revision surgery with a massive bone loss. Over a long period of time the patients may need revision surgery, and this might affect the functional outcome. We reviewed all consecutive total femur replacements done for primary and revision surgery of primary bone tumours in our centre to evaluate the long-term functional outcome and survival.

    MATERIALS AND METHODS: All patients who had total femur resection and reconstruction with modular endoprosthesis replacement in our centre from June 1997 to May 2022 were reviewed. The respondents were surveyed through WhatsApp using google form which was translated into Bahasa Malaysia based on the Musculoskeletal Tumour Society Scoring System (MSTS). The data were presented as descriptive data on the final survival of the limb and prosthesis.

    RESULTS: Ten patients underwent total femur replacement. There were eight osteosarcoma, one giant cell tumour and one chondromyxoid fibroma. Three patients with osteosarcoma succumbed to pulmonary metastases; all had good early post-operative functional outcomes without local recurrence. Seven patients were available for long term evaluation of function with a mean follow-up of 17.6 years (ranged 10-25 years). Four patients with total femur replacement had good functional outcomes (60-80%) without revision with 10-25 years follow-up. Three patients experienced acetabulum erosion and chronic pain that required early hip replacements. Two of them were complicated with superior erosions and bone loss and subsequently were managed with massive reconstruction using cemented acetabulum cage reconstruction. The other has diabetes mellitus with chronic infection following revision of distal femur endoprosthesis to total femur replacement and subsequently underwent limited hemipelvectomy after 14 years.

    CONCLUSION: Total femur replacement offers a good long term functional outcome and prosthesis survival and is a favourable option for limb salvage surgery.

  9. Mohamed Daud A, Mat Baki M, Azman M, Kamaruzaman E, Mohamed AS
    Indian J Otolaryngol Head Neck Surg, 2019 Oct;71(Suppl 1):118-120.
    PMID: 31741945 DOI: 10.1007/s12070-017-1146-x
    Respiratory distress after thyroidectomy and thymectomy can be challenging. We encountered a 70-year-old lady with a long-standing goiter with concomitant thymoma. She underwent the surgery and developed respiratory distress upon extubation with loss of laryngeal sensation causing severe aspiration. She was diagnosed myasthenia gravis and symptoms resolved with MG treatments.
  10. Kamarudin NA, Yeoh XY, Ibrahim MZ, Ab Rahman WI, Azman M
    Indian J Otolaryngol Head Neck Surg, 2022 Oct;74(Suppl 2):2652-2655.
    PMID: 36452537 DOI: 10.1007/s12070-020-02340-8
    Laryngo-tracheo-bronchial tuberculosis may be primary or secondary to pulmonary tuberculosis. It causes stenosis of the airway, leading to life threatening airway obstruction. We herein describe the challenges in managing a case of laryngo-tracheo-bronchial stenosis in a 22-year-old patient who presented with stridor post antituberculous therapy secondary to a malacic airway.
  11. Mahmud Mohayuddin N, Azman M, Wan Hamizan AK, Zahedi FD, Carroll TL, Mat Baki M
    J Voice, 2022 Jul 24.
    PMID: 35896429 DOI: 10.1016/j.jvoice.2022.06.008
    OBJECTIVE: To explore the use of real-time virtual chromoendoscopy (i-scan) in characterizing the mucosal changes present in subjects with suspected laryngopharyngeal reflux (LPR) and to compare the inter-rater and intra-rater agreement of Reflux Finding Scores (RFS) from both laryngologists and general otolaryngologists (ORL) observing exams using both white light endoscopy (WLE) and i-scan.

    METHODS: This is a cross-sectional study that included 66 subjects: 46 symptomatic and 20 asymptomatic of suspected LPR based on the reflux symptom index (RSI). Subjects underwent flexible video laryngoscopic evaluation of the larynx utilising both WLE and i-scan during one continuous exam. Subjects also underwent 24-hour oropharyngeal pH-monitoring (Dx-pH). Two laryngologists and two general otolaryngologists evaluated the anonymized videos independently using RFS. Dx-pH results were interpreted using the pH graph, report and RYAN score. Subjects were then designated into one of three groups: no reflux, acid reflux and alkaline reflux.

    RESULTS: For the symptomatic group, no mucosal irregularities or early mucosal lesions were observed except in one subject who had granulation tissue. The mean RFS using WLE and i-scan were, respectively: 11.8 (SD 6.1) and 11.3 (SD 5.6) in symptomatic and 7.3 (SD 5.7) and 7.3 (SD 5.2) in asymptomatic group. The inter-rater agreement of RFS using WLE and i-scan for both groups were good with intraclass correlation, ICC of 0.84 and 0.88 (laryngologists); and 0.85 and 0.81 (ORL). The intra-rater agreement among all four raters were good to excellent and similar for both WLE and i-scan (ICC of 0.80 to 0.99). 47 of 66 subjects had evidence of LPR on Dx-pH results which more specifically showed 39 subjects had "acid reflux" and 8 had "alkaline reflux". Sixteen subjects demonstrated a positive RYAN score but showed none were significantly correlated with their RFS.

    CONCLUSIONS: This study reports the first utilization of real-time video chromoendoscopy with i-scan technology through high-definition flexible endoscopes to attempt to characterize laryngopharyngeal findings in patients suspected of having LPR. Both general otolaryngologists and laryngologists were equally capable of reliably calculating the RFS using both WLE and i-scan, however no significant improvement in agreement or change in RFS was found when i-scan technology was employed.

    LEVEL OF EVIDENCE: Level 2.

  12. Al-Yahya SN, Mohamed Akram MHH, Vijaya Kumar K, Mat Amin SNA, Abdul Malik NA, Mohd Zawawi NA, et al.
    J Voice, 2020 Aug 27.
    PMID: 32861567 DOI: 10.1016/j.jvoice.2020.07.015
    OBJECTIVE: Maximum phonation time (MPT) is a test to measure glottic efficiency for laryngeal pathology screening and treatment monitoring. The normative value of MPT for South East Asia population has yet to be reported. It is postulated that MPT may be affected by body mass index (BMI) despite the paucity of evidence. Therefore, this study was designed to establish the normative value of MPT for a South East Asia population and investigate its relation to BMI.

    DESIGN & SETTING: This cross-sectional study was conducted in Universiti Kebangsaan Malaysia Medical Center between May and September 2017.

    PARTICIPANTS AND METHODS: Three hundred males and females with mean age of 30.23 (±11.04) years were recruited in equal number for each gender (n = 150) and divided into 3 groups of 50 according to their BMI (n = 50). The three groups are non-obese (BMI≤22.9kg/m2); obese (BMI between 23 and 34.9 kg/m2); and morbidly obese (BMI >35kg/m2). BMI and Voice Handicap Index-10 (VHI-10) were obtained. The average of three readings of MPT was measured using a stopwatch while the participants phonate /a/, /i/ and /u/. Unpaired t-test and ANOVA were used to compare means between and across groups. Spearman correlation assessed the correlation between MPT and BMI.

    MAIN OUTCOME MEASURES: The normative values of MPT of both genders and correlation with BMI were analyzed.

    RESULTS: The MPT normative values for males and females in the non-obese group were of 21.41 (±6.85) seconds and 18.05 (±5.06)seconds respectively for /a/. The MPT for all vowels were significantly higher in males across the BMI groups (P ≤ 0.05). There was low negative correlation between MPT and BMI in both genders.

    CONCLUSIONS: This pioneering study documented the normative values of MPT among Malaysians showed that males had longer MPT than females across the BMI groups. Obesity affects the MPT in that as BMI increases, the MPT decreases.

  13. Azman MA, Asyraf MRM, Khalina A, Petrů M, Ruzaidi CM, Sapuan SM, et al.
    Polymers (Basel), 2021 Jun 09;13(12).
    PMID: 34207597 DOI: 10.3390/polym13121917
    Natural fibers have attracted great attention from industrial players and researchers for the exploitation of polymer composites because of their "greener" nature and contribution to sustainable practice. Various industries have shifted toward sustainable technology in order to improve the balance between the environment and social and economic concerns. This manuscript aims to provide a brief review of the development of the foremost natural fiber-reinforced polymer composite (NFRPC) product designs and their applications. The first part of the manuscript presents a summary of the background of various natural fibers and their composites in the context of engineering applications. The behaviors of NFPCs vary with fiber type, source, and structure. Several drawbacks of NFPCs, e.g., higher water absorption rate, inferior fire resistance, and lower mechanical properties, have limited their applications. This has necessitated the development of good practice in systematic engineering design in order to attain optimized NRPC products. Product design and manufacturing engineering need to move in a mutually considerate manner in order to produce successful natural fiber-based composite material products. The design process involves concept design, material selection, and finally, the manufacturing of the design. Numerous products have been commercialized using natural fibers, e.g., sports equipment, musical instruments, and electronic products. In the end, this review provides a guideline for the product design process based on natural fibers, which subsequently leads to a sustainable design.
  14. Suriani MJ, Ilyas RA, Zuhri MYM, Khalina A, Sultan MTH, Sapuan SM, et al.
    Polymers (Basel), 2021 Oct 13;13(20).
    PMID: 34685272 DOI: 10.3390/polym13203514
    Increasing scientific interest has occurred concerning the utilization of natural fiber-enhanced hybrid composites that incorporate one or more types of natural enhancement. Annual natural fiber production is estimated to be 1,783,965 × 103 tons/year. Extensive studies have been conducted in the domains of natural/synthetic as well as natural/natural hybrid composites. As synthetic fibers have better rigidity and strength than natural fibers, natural/synthetic hybrid composites have superior qualities via hybridization compared to natural composites in fibers. In general, natural fiber compounds have lower characteristics, limiting the use of natural composites reinforced by fiber. Significant effort was spent in enhancing the mechanical characteristics of this group of materials to increase their strengths and applications, especially via the hybridization process, by manipulating the characteristics of fiber-reinforced composite materials. Current studies concentrate on enhancing the understanding of natural fiber-matrix adhesion, enhancing processing methods, and natural fiber compatibility. The optimal and resilient conceptions have also been addressed due to the inherently more significant variabilities. Moreover, much research has tackled natural fiber reinforced hybrid composite costs. In addition, this review article aims to offer a review of the variables that lead to the mechanical and structural failure of natural fiber reinforced polymer composites, as well as an overview of the details and costings of the composites.
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