1.Factors associated with work-related musculoskeletal disorders using machine learning approaches: a systematic review
Muhammad Irfan MOHD SALLEHHUDIN ; Siti Munira YASIN ; Mohamad Rodi ISA ; Tajul Rosli RAZAK ; Muhamad Syazni MOHAMAD ASRAFF ; Nur Adilla CHE RAMELI ; Muhammad Muaz SHAHRIMAN-TERUNA ; Muhammad Muzzammil MOHAMAD SALLEH ; Mohamad Zuhair MOHAMED YUSOFF ; Muhammad Hariz AMMAR KHEBIR
Annals of Occupational and Environmental Medicine 2026;38(1):e10-
Background:
Work-related musculoskeletal disorders (WRMSDs) remain a major cause of occupational disability and productivity loss worldwide. Traditional statistical methods have identified numerous associated factors; however, they often struggle to capture complex non-linear relationships and interactions across multiple domains of risk. Machine learning (ML) offers an alternative analytical approach for modelling such multidimensional relationships.
Methods:
Following the PRISMA 2020 guidelines (PROSPERO: CRD420250605234), literature searches were conducted in Web of Science, Scopus, and PubMed for studies published between 2020 and 2025. Eligible studies applied ML methods to identify factors associated with WRMSDs using cross-sectional study designs. Included studies were appraised using the Joanna Briggs Institute Critical Appraisal Checklist for analytical cross-sectional studies.
Results:
Ten studies met the inclusion criteria, representing workers from healthcare, transport, manufacturing, and service sectors across Asia, Africa, and Europe. Frequently applied ML algorithms included random forest, support vector machine, and artificial neural networks, demonstrating strong internal discriminative performance (area under the receiver operating characteristic curve: 0.80–0.99), although the absence of external validation in several studies suggests a potential risk of overfitting. Commonly identified factors included age, sex, awkward posture, vibration exposure, prolonged working hours, stress, and burnout. Psychosocial factors, including post-traumatic stress disorder, job stress, and depression, were ranked among the most influential predictors within ML models.
Conclusions
ML models demonstrate strong capability in discriminating WRMSDs risk and identifying multidimensional risk factors compared with traditional statistical approaches. These models highlight complex interrelationships between ergonomic and psychosocial exposures. Future research should incorporate external validation, objective exposure measurements, and standardized ML reporting frameworks to enhance methodological transparency and generalizability.
2.Oropharyngeal Synovial Sarcoma: A Case Report
Mohammad Zakwan Mohamed Zin ; Mohammad Zakwan Mohamed Zin ; Avatar Singh Mohan Singh ; Shiraz Qamil Muhammad Abdul Kadar ; Suhana Abdul Rahim ; Kannivanen Arasu ; Nur Eliana Ahmad Termizi ; Hui Heng Chua ; Norsyamira Aida Mohamad Umbaik ; Irfan Mohamad
Archives of Orofacial Sciences 2025;20(1):53-58
Oropharyngeal Synovial Sarcoma: A Case Report
Synovial sarcoma is a rare and aggressive type of sarcoma that develops from mesenchymal cells and
accounts for around 8% to 10% of all cases of soft tissue sarcoma. The presence of synovial sarcoma
in the head-and-neck region is characterised by aggressive behaviour and a generally unfavourable
prognosis. Understanding the various manifestations of synovial sarcoma, particularly uncommon
locations like the oropharynx, significantly improves patient outcomes by facilitating early diagnosis and
prompt management. We report a case of a 57-year-old Malay woman who presented with a two-month
history of sore throat and odynophagia, complicated with partial airway obstruction. She underwent
endoscopic excision of the right oropharyngeal tumour via transoral approach, and the histopathological
examination revealed monophasic synovial sarcoma. The surgical management, histopathological
characteristics, and rarity of the disease are discussed.
3.Alveolar Soft Part Sarcoma as a Great Masquerader of Unilateral Sinonasal Tumour in Child: A Case Report
Shao Peng Tee ; Shao Peng Tee ; Nur Adillah Lamry ; Hafiz Mohamad Mahbob ; Intan Nurjannah Darwin ; Irfan Mohamad
Archives of Orofacial Sciences 2024;19(2):187-193
Alveolar Soft Part Sarcoma as a Great Masquerader of Unilateral Sinonasal Tumour in Child: A Case Report
Alveolar soft part sarcoma (ASPS) is a rare mesenchymal neoplasm that accounts for less than 1%
of all sarcoma and the most common site of tumour is found in the soft tissue of the extremity. The
incidence of ASPS in paediatric age group is rare. It is extremely uncommon for the tumour arising
from the sinonasal within the head and neck region. Most of the reported cases were in the orbit and
tongue. Localised ASPS carries a good prognosis after complete total resection. Diagnosing ASPS can
be challenging as it can be a masquerader to other sinonasal soft tissue malignancy which required
the laborious process of histopathological examination, immunohistochemistry, and ultrastructural
examination to solve the complexity. We encountered an 11-year-old girl who presented with sudden
onset of left nasal obstruction and on examination noted a unilateral vascular mass in the left nasal cavity turned out to be ASPS. She underwent left nasal tumour debulking via endoscopic approach under general anaesthesia. Post-operative, she recovered well with regular endoscopic surveillance and was referred to the oncology team for post-operative radiotherapy.
4.ADENOSQUAMOUS CARCINOMA OF THE NASAL SEPTUM: A RARE VARIANT
Kim Yew Richard WONG ; Eyzawiah HASSAN ; Azreen Zaira ABU BAKAR ; Hafeza AHMAD ; Shamim Rahman S.M.A. ABDUL RASHEED ; Asmawiza AWANG ; Irfan MOHAMAD
Brunei International Medical Journal 2023;19():13-18
Adenosquamous carcinoma is a rare variant of squamous cell carcinoma of the nasal septum which is very aggressive and metastasise early with poor prognosis. We present a case of a gentleman who presented with left nasal septal swelling for 4 months. Examination showed a lesion at the left nasal septum extending to the dorsum of the nose and right upper lip region. Computed tomography scan of the paranasal sinuses and neck showed an enhancing lesion with ulceration at the left nasal septum, with regional metastasis to the neck. He underwent a subtotal rhinectomy, inferior maxillectomy, and bilateral modified radical neck dissection type III. Unfortunately, he succumbed to a cardiac arrest 5 days after surgery.
5.Rapid Subjective Vertigo and Psychological Improvement Post Gans Reposition Manoeuvre in 3 Days Duration
Zuraida Zainun ; Nur Asyilla Che Jalil ; Irfan Mohamad
Malaysian Journal of Medicine and Health Sciences 2022;18(No.2):191-193
Benign paroxysmal positional vertigo (BPPV) is one of the most common vestibular disorder worldwide. Management of this pathology is not complicated and can be done in a short period of time with a proper diagnosis and
treatment technique. There are several established methods for treatment of this disease includes Epley’s maneuver,
Gans Canal Repositioning maneuver (Gans CRM) and others. This study reported a 38-year-old female presented
with dizziness and vertigo, which is severely altered her daily activity, showed 90% improvement using the psychological effect assessment tool after three days of treatment with Gans CRM.
6.Extensive Giant Lipoma of Oropharynx
Ahmad Hazim Hazlami Ahmad Nizar ; Nor Shahida Abd Mutalib ; Irfan Mohamad ; Nurliza Idris
Malaysian Journal of Medicine and Health Sciences 2022;18(No.2):194-196
Lipoma is a benign, slow growing tumour composed of adipose tissue. In general, it is very unusual for lipoma to
form in the head and neck region, let alone achieve a size of more than 10 cm with the involvement of deep neck
spaces. We discussed a case of an extremely huge neck lipoma measuring 18 cm x 14 cm with extensive involvement of deep neck spaces, infratemporal fossa and pharynx, closely adherent to submandibular and parotid gland.
The diagnostic and therapeutic challenges were discussed, in achieving a surgically complete excision and cosmetically acceptable outcome
7.Food Safety Knowledge, Beliefs and Behaviour among Health Sciences-related Field Undergraduate Students at a Local University (Pengetahuan, Kepercayaan dan Tingkah Laku Keselamatan Makanan dalam Kalangan Pelajar Bidang Berkaitan Sains Kesihatan di Sebuah Universiti Tempatan)
NUR AISYAH ZAILANI ; NURUL SHAFIKAH IDRIS ; AHMAD MUJAHID ZAINAL ; UMI HANIQ MOHAMAD KAMIL ; MOHAMED RAFIQ MOHD RADHUAN ; SYED ALIF IRFAN SYED AHMAD JAAFAR ; MUHAMMAD IKRAM A. WAHAB ; SITI SHAHARA ZULFAKAR
Malaysian Journal of Health Sciences 2022;20(No.1):13-21
Foodborne disease is among the primary illness that causes morbidity and mortality in the world. Several studies show
that most students do not have adequate food safety knowledge to protect themselves against foodborne diseases. This
study aimed to determine the food safety knowledge, behaviour, and beliefs among undergraduate students at a local
university in Malaysia. This cross-sectional study involves 121 respondents from three health science-related faculties
at the studied institution. The questionnaire was distributed via an online platform. This study used multiple-choiceformat questions for Food Safety Knowledge and a Likert type scale for Food Safety Behaviour and Belief question
statements. Most of the respondents were female (78%). About 16% of the respondents have experience working /
volunteering in food services, and half of them are involved in food handling during their services. This study recorded
a moderate score in all sections (knowledge, behaviour, beliefs) with a total percentage score of 60.3%, 60.3%, and
66.1%, respectively. A strong but not significant correlation between food safety knowledge and beliefs (r = 0.69 p >
0.05) and between food safety knowledge and behaviour (r = 0.83 p > 0.05) were observed. This study is useful as a
basis to develop a targeted food safety education program among undergraduate students. Students with high knowledge
of food safety will increase food safety beliefs and behaviour, thus preventing them from getting any foodborne illness.
8.HOARSENESS SECONDARY TO LARYNGEAL HISTOPLASMOSIS: A CASE REPORT
Ahmad Mahfuz ZAMAILI ; Irfan MOHAMAD ; Hamidah MAMAT ; Othman ABDULLAH
Brunei International Medical Journal 2022;18():16-19
Histoplasmosis usually occurs in immunocompromised patients through the dissemination of the fungus from lungs to other organs but laryngeal involvement is rare. We report a 52-year-old male chronic smoker who presented with hoarseness for 3 months was initially investigated for laryngeal carcinoma. However biopsy showed granulomatous inflammation. He was treated with anti-tuberculosis treatment for 2 months but symptoms persisted and a repeat biopsy revealed laryngeal histoplasmosis. There were no sign and symptoms of pulmonary or systemic involvement. Treatment with intravenous amphotericin B and oral itraconazole lead to complete resolution of symptoms and signs. Monitoring and early revisiting the diagnosis are important when a patient’s symptoms do not improve with the treatment. Further investigation including a repeat biopsy of lesion is vital to establish the diagnosis and lead to appropriate management.
9.Kimura Disease as a Rare Cause of Proptosis: A Case Report
V Sha Kri Eh Dam ; Irfan Mohamad ; Evelyn Li Min Tai ; Adil Hussein ; Khairil Amir Sayuti ; Fatihatul Munirah Amiruddin ; Faezahtul Arbaeyah Hussain
Archives of Orofacial Sciences 2021;16(2):259-265
ABSTRACT
Kimura disease (KD) is a rare chronic inflammatory disorder of unknown aetiology that primarily affects
the head and neck region with lymph node involvement. Young to middle-aged adult Asian males are
predominantly affected. The most common presentation is painless subcutaneous swelling in the head
and neck region, while proptosis or orbital involvement is very rarely reported. KD shares some features
with other inflammatory and neoplastic disorders, including lymphoma; thus, investigations to confirm
the diagnosis should not be delayed. Systemic corticosteroids are commonly used to treat KD and show
an excellent response; however, the optimal treatment is still uncertain, and KD has a high recurrence
rate. We describe the case of a patient with KD who presented with proptosis and post-auricular
swelling, which responded well to oral prednisolone treatment.
Kimura Disease
;
Exophthalmos
10.A Critical Appraisal of COVID-19 in Malaysia and Beyond
Jafri Malin Abdullah1 ; Wan Faisham Nu&rsquo ; man Wan Ismail ; Irfan Mohamad ; Asrenee Ab Razak ; Azian Harun ; Kamarul Imran Musa ; Yeong Yeh Lee1
Malaysian Journal of Medical Sciences 2020;27(2):1-9
When the first report of COVID-19 appeared in December 2019 from Wuhan, China, the
world unknowingly perceived this as another flu-like illness. Many were surprised at the extreme
steps that China had subsequently taken to seal Wuhan from the rest of the world. However, by
February 2020, the SARS-CoV-2 virus, which causes COVID-19, had spread so quickly across the
globe that the World Health Organization officially declared COVID-19 a pandemic. COVID-19 is
not the first pandemic the world has seen, so what makes it so unique in Malaysia, is discussed to
avoid a future coronacoma.


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