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Nasal Irrigation as Treatment in Sinonasal Symptoms Relief: A Review of Its Efficacy and Clinical Applications

Abdullah B, Periasamy C, Ismail R

Indian J Otolaryngol Head Neck Surg, 2019 Nov;71(Suppl 3):1718-1726.
PMID: 31763232 DOI: 10.1007/s12070-017-1070-0

Nasal irrigations have been used for centuries without any scientific data to determine its efficacy. Despite their widespread use, much confusion exist about the mechanism of action, preparation, indications and therapeutic advantage of nasal irrigations. Anecdotal evidence and poorly controlled studies add to the confusion. Recent evidence provides strong scientific justification of the benefits and advantages of using nasal irrigations in sinonasal symptoms relief. The present review of the evidence based literature highlights its efficacy and clinical applications.
Fulltext Primary Tonsillar Small Cell Neuroendocrine Carcinoma with Bone Metastases

Awang NM, Haron A, Abdullah B

Iran J Otorhinolaryngol, 2022 Jul;34(123):195-198.
PMID: 36035652 DOI: 10.22038/IJORL.2022.58137.3001

INTRODUCTION: Small cell neuroendocrine carcinoma (NEC) that arises from the tonsil is a particularly rare head and neck carcinoma. This kind of neoplasm mainly originated from the bronchopulmonary area; however, there were reported cases of extrapulmonary areas. The prognosis is poor as the tumour is an aggressive tumour and have a high risk of metastasis.
CASE REPORT: We experienced a patient presented with painless right neck swelling and hard tonsillar hypertrophy for past six month. Computer tomography showed the tumour extended to the parapharyngeal space and metastasized to the thoracolumbar vertebras. The intraoral biopsy of the tonsil confirmed primary small cell neuroendocrine carcinoma of the tonsil. The clinical presentation, radiological imaging, histopathological investigations, and methods of treatment are discussed.
CONCLUSIONS: Due to the rarity of this disease, there is no definitive treatment yet for this disease. The physicians must thoroughly understand the nature and characteristic of the disease to find the best treatment. The latest discoveries in chemotherapy drugs and radiotherapy may improve the treatment modalities in the future.
Fulltext Prevalence of Olfactory Dysfunction in Coronavirus Disease 2019 (COVID-19): A Meta-analysis of 27,492 Patients

Saniasiaya J, Islam MA, Abdullah B

Laryngoscope, 2021 Apr;131(4):865-878.
PMID: 33219539 DOI: 10.1002/lary.29286

OBJECTIVES/HYPOTHESIS: Olfactory dysfunction has been observed as one of the clinical manifestations in COVID-19 patients. We aimed to conduct a systematic review and meta-analysis to estimate the overall pooled prevalence of olfactory dysfunction in COVID-19 patients.
STUDY DESIGN: Systematic review and meta-analyses.
METHODS: PubMed, Scopus, Web of Science, Embase, and Google Scholar databases were searched to identify studies published between 1 December 2019 and 23 July 2020. We used random-effects model to estimate the pooled prevalence with 95% confidence intervals (CIs). Heterogeneity was assessed using the I2 statistic and Cochran's Q test. Robustness of the pooled estimates was checked by different subgroup and sensitivity analyses This study is registered with PROSPERO (CRD42020183768).
RESULTS: We identified 1162 studies, of which 83 studies (n = 27492, 61.4% female) were included in the meta-analysis. Overall, the pooled prevalence of olfactory dysfunction in COVID-19 patients was 47.85% [95% CI: 41.20-54.50]. We observed olfactory dysfunction in 54.40% European, 51.11% North American, 31.39% Asian, and 10.71% Australian COVID-19 patients. Anosmia, hyposmia, and dysosmia were observed in 35.39%, 36.15%, and 2.53% of the patients, respectively. There were discrepancies in the results of studies with objective (higher prevalence) versus subjective (lower prevalence) evaluations. The discrepancy might be due to false-negative reporting observed in self-reported health measures.
CONCLUSIONS: The prevalence of olfactory dysfunction in COVID-19 patients was found to be 47.85% based on high-quality evidence. Due to the subjective measures of most studies pooled in the analysis, further studies with objective measures are advocated to confirm the finding.
LEVEL OF EVIDENCE: 2 Laryngoscope, 131:865-878, 2021.
Fulltext Challenges in the management of nasopharyngeal carcinoma: a review

Abdullah B, Alias A, Hassan S

Malays J Med Sci, 2009 Oct;16(4):50-4.
PMID: 22135512 MyJurnal

Nasopharyngeal carcinoma (NPC) is a non-lymphomatous, squamous cell carcinoma that occurs in the epithelial lining of the nasopharynx, an area that shows varying degrees of differentiation. Although relatively rare worldwide, NPC has substantial incidence and mortality in populations in Southeast Asia and in people with Southern Chinese ancestry. In Malaysia, NPC is a leading cancer type. In the clinic, NPC presents on a very wide spectrum. Therefore, a high degree of suspicion on the part of the clinician and an increased awareness by the patient is essential for the recognition of an early lesion. Early detection of the cancer is important as it affects the patient's prognosis and the mode of treatment. Managing patients with NPC is very challenging as patients usually present late when the cancer is already in an advanced stage. Here, we review the challenges in the management of NPC.
Fulltext Clinical and audiological profiles in children with chronic otitis media with effusion requiring surgical intervention

Abdullah B, Hassan S, Sidek D

Malays J Med Sci, 2007 Jul;14(2):22-7.
PMID: 22993488 MyJurnal

To determine the characteristic presenting symptoms, otoscopic findings, audiological profiles and the intraoperative findings of children with chronic otitis media with effusion who required surgical intervention. A prospective cross sectional study was undertaken in the otorhinolaryngology clinic of USM Hospital (HUSM) involving 25 cases (50 ears) of children with chronic otitis media with effusion requiring surgical intervention from June 1999 to September 2001. Their ages ranged from 3 to 12 years old. The gender distribution included males at 72 % and females at 28 %. The presenting symptoms noted were hearing impairment (52%), otalgia (18%), ear block (16%) and tinnitus (14%). The otoscopic findings were fluid in the middle ear (40%), dullness (32%) and retraction of the tympanic membrane (28%). On audiometry, 24 ears had moderate deafness (48%), 16 ears had mild deafness (32%) while 4 ears had severe deafness (8%). With tympanometry, 42 ears out of the total 50 had a flat type B curve (84%) while 6 ears had type As curve (12%). During myringotomy, middle ear secretion was seen in 38 ears (76%) out of the 50 ears; 22 ears had mucoid secretion while 16 ears had serous secretion. Clinically, the commonest presenting symptom was hearing impairment (52%) while the most common otoscopic finding was fluid in the middle ear (40%). Audiologically, most patients had moderate conductive hearing loss (48%) and a type B curve (84%) on tympanometry. On myringotomy middle ear fluid was found in 76 % of the ears.
Study site: otorhinolaryngology clinic, Hospital Universiti Sains Malaysia (HUSM), Kelantan, Malaysia
Fulltext Transnasal endoscopic repair for bilateral choanal atresia

Abdullah B, Hassan S, Salim R

Malays J Med Sci, 2006 Jul;13(2):61-3.
PMID: 22589606

Choana atresia is a congenital abnormality of the posterior nasal apertures affecting the newborn. The aetiology is considered to be a persistence of the embroyological bucconasal membrane which separates the nasal cavity from the stomatodeum until it breaks down at seventh week, allowing communication through the primitive posterior nares. Bilateral choanal atresia almost always present as a respiratory emergency because newborn babies are obligate nasal breathers. The definitive surgical treatment is repair under general anaesthesia. We report our experience in doing a new technique of transnasal endoscopic repair.
Fulltext Outcome of laser-assisted uvulopalatoplasty (LAUP) in the management of snoring in Hospital Universiti Sains Malaysia (USM)

Abdullah B, Othman NA, Daud MK

Malays J Med Sci, 2008 Apr;15(2):29-32.
PMID: 22589622

To determine the outcome of laser-assisted uvulopalatoplasty for the management of patients with snoring in Universiti Sains Malaysia Hospital (HUSM). A retrospective review of patients who underwent LAUP with or without tonsillectomy or adenoidectomy under general anaesthesia between December 2003 to December 2006. Data was obtained from admission and follow-up records in the otorhinolaryngology clinic of USM Hospital (HUSM). A total of nineteen patients underwent procedure for the treatment of snoring. Majority of these patients presented with symptoms of loud snoring and daytime somnolence. The main operations performed were LAUP with or without tonsillectomy or adenoidectomy. The justification for LAUP were overhanging and excessive uvula or soft palate, whereas for adenotonsillectomy were the hypertrophied adenoids and tonsils. On follow-up, most of the patients claimed improvement of snoring within the first 2 months post-operation. However, majority of them defaulted follow-up after that. One patient (AHI preoperatively was mild) was reviewed up to 8 months with no snoring. One patient (AHI was severe preoperatively and normal post operatively) remained in our follow-up was satisfied with the operation. Two patients continued to experience snoring post LAUP despite trial of non-surgical methods. The outcome of LAUP in our patients showed variable results. This showed that patient selection is very important to achieve good result in LAUP. Long-term follow-up is also essential to document the success for LAUP.

Study site: otorhinolaryngology clinic of USM Hospital (HUSM)
The impact of middle meatal steroid-eluting implants on the postoperative outcomes of chronic rhinosinusitis: A systematic review and meta-analysis

Zamaili AM, Kueh YC, Mohamad S, Abdullah B

Eur Ann Otorhinolaryngol Head Neck Dis, 2025 Jan;142(1):26-37.
PMID: 38521652 DOI: 10.1016/j.anorl.2024.02.014

Endoscopic sinus surgery (ESS) has become an established surgical option in refractory chronic rhinosinusitis (CRS). The goal of this review is to assess the impact of steroid-eluting middle meatal implants after ESS. Cochrane Central Register of Controlled Trials (CENTRAL), SCOPUS, PUBMED, and GOOGLE SCHOLAR were searched from inception to November 2022. All randomised controlled trials (RCTs) involving adult patients receiving ESS for CRS utilising a steroid-eluting middle meatal implants were eligible. The primary outcome was adhesion or synechiae. The secondary outcomes were mucosal inflammation, polyp reformation, the need for oral steroids and additional surgery, postoperative bleeding, sinus pain and discomfort, postoperative sinus-related infection, and change in intraocular pressure. Fourteen full articles were examined out of 496 potential abstracts. Seven RCTs satisfied the criteria. At 30days, steroid-eluting implants reduced adhesion (OR: 0.28, 95% CI: 0.14 to 0.56; P<0.001), mucosal inflammation (MD: -13.09, 95% CI: -18.22 to -7.97; P<0.001), polyp reformation (OR: 0.31; 95% CI: 0.22 to 0.44; P<0.001), and requirement of additional oral steroid (OR: 0.44; 95% CI: 0.25 to 0.78; P=0.005) or surgery (OR: 0.25; 95% CI: 0.12 to 0.50; P<0.001). While their use for adhesion (OR: 0.24; 95% CI: 0.11 to 0.54; P<0.001) and polyp reformation (OR: 0.24; 95% CI: 0.12 to 0.51; P<0.001) were favourable, there was no difference in mucosal inflammation (MD: -5.68, 95% CI: -12.39 to 1.03; P=0.100) or the need for surgery (OR: 0.96; 95% CI: 0.07 to 12.37; P=0.980) when evaluated after 30days. Overall, the findings suggest that steroid-eluting middle meatal implants improve ESS outcomes by lowering rates of adhesion formation, postoperative medical and surgical interventions, recurrent polyposis, and inflammation, while having no significant negative impact in the immediate postoperative period. More research is needed into the long-term impacts.
Fulltext Gender bias in training of medical students in obstetrics and gynaecology: a myth or reality?

Mohd Zahid AZ, Ismail Z, Abdullah B, Daud S

Eur J Obstet Gynecol Reprod Biol, 2015 Mar;186:17-21.
PMID: 25614093 DOI: 10.1016/j.ejogrb.2014.12.018

OBJECTIVE: To investigate the experience of medical students during a clinical attachment in obstetrics and gynaecology (O&G).
STUDY DESIGN: A questionnaire was distributed to medical students who completed their O&G posting between August 2012 and August 2013. The first part included basic demographic details (age, gender, and ethnicity) and frequency of actual clinical experience; the second part explored students' perception of their training and their relationship with other staff, in particular feeling of discrimination by specified groups of medical personnel. The responses were recorded using a Likert scale and were recategorised during analysis.
RESULTS: A total of 370 questionnaires were distributed, and 262 completed questionnaires were returned, giving a response rate of 71%. Female students had a significantly higher median (IqR) number of vaginal examinations performed 0.25(0.69) (p=0.002) compared to male students. Male students experienced a higher proportion of patient rejections during medical consultation, 87% vs. 32% of female students (p<0.001), a higher rate of refusal for clerking (71.4% vs. 57.5% of females, p=0.035) and a higher rate of patients declining consent for internal examination (93.3% vs. 67.6% of females, p<0.001). The majority of male students felt that their gender negatively affected their learning experience (87% vs. 27.4% of the female students, p<0.001). Male students reported a significantly higher proportion of discrimination against their gender by medical officers (p=0.018) and specialists/consultants (p<0.001) compared to females but there was no discrimination between genders by staff nurses or house officers. A majority (58%) of female students stated an interest in pursuing O&G as a future career compared to 31.2% of male students.
CONCLUSIONS: Our study confirmed that gender bias exists in our clinical setting as male students gain significantly less experience than female students in pelvic examination skills. We also demonstrated that compared to female students, male students experience higher levels of discrimination against their gender by trainers who are medical officers and specialists/consultants. Trainers must improve their attitudes towards male students, to encourage them and make them feel welcome in the clinical area. We must minimize gender discrimination and educational inequities experienced by male students, in order to improve their learning experience.
KEYWORDS: Gender discrimination; Obstetrics and gynaecology; Training
Fulltext Noise-induced hearing loss among quarry workers in a north-eastern state of malaysia: a study on knowledge, attitude and practice

Ismail AF, Daud A, Ismail Z, Abdullah B

Oman Med J, 2013 Sep;28(5):331-6.
PMID: 24044059 DOI: 10.5001/omj.2013.96

Noise is known to be one of the environmental and occupational hazards listed in the Factory and Machinery Act 1967. Quarries with loud deafening sounds from trucks and machineries pose the risk of noise-induced hearing loss to workers. This study was designed to assess the knowledge, attitude and practice towards noise-induced hearing loss and to determine the prevalence of noise-induced hearing loss and its associated factors among quarry workers in a north-eastern state of Malaysia.
A parapharyngeal meningioma presenting as a neck mass and multiple cranial nerve palsies

Mohamad I, Abdullah B, Idris Z, Naik VR, Bhavaraju VM

Ceylon Med J, 2011 Jun;56(2):73-4.
PMID: 21789871
Fulltext Optimising the scan delay for arterial phase imaging of the liver using the bolus tracking technique

Chan R, Kumar G, Abdullah B, Ng Kh, Vijayananthan A, Mohd Nor H, et al.

Biomed Imaging Interv J, 2011 Apr;7(2):e12.
PMID: 22287986 MyJurnal DOI: 10.2349/biij.7.2.e12

To optimize the delay time before the initiation of arterial phase scan in the detection of focal liver lesions in contrast enhanced 5 phase liver CT using the bolus tracking technique.
Education and Imaging. Gastrointestinal: massive intraperitoneal haemorrhage in a young woman with hereditary hemorrhagic telangiectasia

Sivarani S, Chan YK, Liam CK, Kumar G, Abdullah BJ, Mahadeva S

J Gastroenterol Hepatol, 2010 Sep;25(9):1587.
PMID: 20796159 DOI: 10.1111/j.1440-1746.2010.06469.x
A new expandable cannula system for endoscopic evacuation of intraparenchymal hemorrhages

Waran V, Vairavan N, Sia SF, Abdullah B

J. Neurosurg., 2009 Dec;111(6):1127-30.
PMID: 19408977 DOI: 10.3171/2009.4.JNS081506

The authors describe a newly developed expandable cannula to enable a more efficient use of an endoscope in removing intraparenchymal spontaneous hypertensive intracerebral hematomas. The cannula is introduced like a conventional brain cannula, using neuronavigation techniques to reach the targeted hematoma accurately, and, once deployed, conventional microsurgical techniques are used under direct endoscopic visualization. This method was used in 6 patients, and, based on the results of intraoperative intracranial pressure monitoring and postoperative CT scanning, the authors were able to achieve good hematoma removal. They found that by using the expandable cannula, efficient endoscopic surgery in the brain parenchyma was possible.
Fulltext Transarterial embolisation of hepatocellular carcinoma with doxorubicin-eluting beads: single centre early experience

Nawawi O, Hazman M, Abdullah B, Vijayananthan A, Manikam J, Mahadeva S, et al.

Biomed Imaging Interv J, 2010 Jan-Mar;6(1):e7.
PMID: 21611067 MyJurnal DOI: 10.2349/biij.6.1.e7

This is a retrospective study to evaluate the results of our early experience of using doxorubicin eluting beads (DEB) to treat patients with early and intermediate hepatocellular carcinoma (HCC).
Fulltext A survey of radiation dose to patients and operators during radiofrequency ablation using computed tomography

Saidatul A, Azlan C, Megat Amin M, Abdullah B, Ng Kh

Biomed Imaging Interv J, 2010 Jan-Mar;6(1):e1.
PMID: 21611060 MyJurnal DOI: 10.2349/biij.6.1.e2

Computed tomography (CT) fluoroscopy is able to give real time images to a physician undertaking minimally invasive procedures such as biopsies, percutaneous drainage, and radio frequency ablation (RFA). Both operators executing the procedure and patients too, are thus at risk of radiation exposure during a CT fluoroscopy.This study focuses on the radiation exposure present during a series of radio frequency ablation (RFA) procedures, and used Gafchromic film (Type XR-QA; International Specialty Products, USA) and thermoluminescent dosimeters (TLD-100H; Bicron, USA) to measure the radiation received by patients undergoing treatment, and also operators subject to scatter radiation.The voltage was held constant at 120 kVp and the current 70mA, with 5mm thickness. The duration of irradiation was between 150-638 seconds.Ultimately, from a sample of 30 liver that have undergone RFA, the study revealed that the operator received the highest dose at the hands, which was followed by the eyes and thyroid, while secondary staff dosage was moderately uniform across all parts of the body that were measured.
Fulltext CT appearances of Marjolin's ulcer in the left gluteal region of a young man

Mohamed S, Abdullah B, Singh DA, Heng KS

Biomed Imaging Interv J, 2006 Jul;2(3):e26.
PMID: 21614240 DOI: 10.2349/biij.2.3.e26

Chronic wounds and scar tissues are prone to skin cancer. In 1828, Jean-Nicholas Marjolin described the occurrence of tumours in post-traumatic scar tissue. He did not, however, identify the warty ulcers he described as malignant. It was Dupuytren, who about two years later, noted that these lesions were cancerous. The eponym was bestowed by Da Costa in 1903. Marjolin's ulcer no longer refers only to carcinomas secondary to burns and is classified as a malignancy that arises from previously traumatised, chronically inflamed, or scarred skin. It has been reported in relation to osteomyelitis, venous stasis ulcer, tropical ulcers, chronic decubitus ulcer, frostbite, pilonidal sinus, vaccination site, urinary fistula, hidradenitis suppurativa, skin graft donor site, gunshot wounds, puncture wounds, dog bites, and lupus rash. Early arising Marjolin's ulcer has rarely been described in literature. In this case report, we present the CT appearances of Marjolin's ulcer in the left gluteal region of a young man.
Computed and conventional chest radiography: a comparison of image quality and radiation dose

Ramli K, Abdullah BJ, Ng KH, Mahmud R, Hussain AF

Australas Radiol, 2005 Dec;49(6):460-6.
PMID: 16351609

The aim of this study was to compare the image quality and entrance skin dose (ESD) for film-screen and computed chest radiography. Analysis of the image quality and dose on chest radiography was carried out on a conventional X-ray unit using film-screen, storage phosphor plates and selenium drum direct chest radiography. For each receptor, ESD was measured in 60 patients using thermoluminescent dosemeters. Images were printed on 35 x 43 cm films. Image quality was assessed subjectively by evaluation of anatomic features and estimation of the image quality, following the guidelines established by the protocols of the Commission of the European Communities. There was no statistically significant difference noted between the computed and conventional images (Wilcoxon rank sum test, P > 0.05). Imaging of the mediastinum and peripheral lung structures were better visualized with the storage phosphor and selenium drum technique than with the film-screen combination. The patients' mean ESD for chest radiography using the storage phosphor, film-screen combination and selenium drum was 0.20, 0.20 and 0.25 mGy, respectively, with no statistically significant difference with P > 0.05 (chi(2) tests).
Rupture of the lateral ventricle secondary to a fourth ventricle tumour resulting in an indirect nontraumatic cerebrospinal fluid fistula

Tan SP, Abdullah BJ, Waran V, Liew WF

Neuroradiology, 2003 Jan;45(1):53-5.
PMID: 12525956

We present a rare indirect nontraumatic cerebrospinal fluid (CSF) fistula secondary to a fourth ventricle ependymoma. The fistula resulted from rupture of the left temporal horn, distant from the tumour. The fistula was well demonstrated by MRI. High-resolution CT demonstrated a defect in the roof of the sphenoid sinus, but no leakage of CSF was seen on CT cisternography.
A proposed hierarchical fuzzy inference system for the diagnosis of arthritic diseases

Lim CK, Yew KM, Ng KH, Abdullah BJ

Australas Phys Eng Sci Med, 2002 Sep;25(3):144-50.
PMID: 12416592 DOI: 10.1007/BF03178776

Development of computer-based medical inference systems is always confronted with some difficulties. In this paper, difficulties of designing an inference system for the diagnosis of arthritic diseases are described, including variations of disease manifestations under various situations and conditions. Furthermore, the need for a huge knowledge base would result in low efficiency of the inference system. We proposed a hierarchical model of the fuzzy inference system as a possible solution. With such a model, the diagnostic process is divided into two levels. The first level of the diagnosis reduces the scope of diagnosis to be processed by the second level. This will reduce the amount of input and mapping for the whole diagnostic process. Fuzzy relational theory is the core of this system and it is used in both levels to improve the accuracy.

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