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Objective assessment of nasal resistance among electronic cigarette users

Lim SW, Zulkiflee AB

J Laryngol Otol, 2021 Jul;135(7):616-619.
PMID: 34078481 DOI: 10.1017/S0022215121001432

BACKGROUND: Electronic cigarettes have been a popular alternative to tobacco smoking. The effect of tobacco smoking on nasal airway resistance has been investigated before; however, the effect of the aerosol generated by electronic cigarettes is still unknown. This study aimed to evaluate the short-term effects of e-cigarettes on nasal airway resistance.
METHODS: Sixty-one participants were recruited into a vapers group and a control group. The vapers group was instructed to smoke for 5 minutes, and their nasal resistance was measured pre-procedure and at 1 and 5 minutes post-procedure. The results were compared between both groups.
RESULTS: Repeated measures analysis of variance demonstrated that vaping has no statistically significant effect on total nasal airway resistance.
CONCLUSION: Although the differences between both groups were not statistically significant overall, the vapers group showed a reduction in nasal airway resistance in the short term.
Fulltext Anaplastic thyroid carcinoma mimicking thyroid abscess

Loh TL, Zulkiflee AB

AME Case Rep, 2018;2:20.
PMID: 30264016 DOI: 10.21037/acr.2018.04.05

Anaplastic thyroid carcinoma (ATC) is a particularly fearsome form of thyroid cancer due to its extreme aggressiveness and dismal prognosis. Patients with ATC typically present with a rapidly enlarging neck mass with compressive symptoms. We report a case of ATC, mimicking a thyroid abscess; in a 52-year-old Chinese male with one month history of enlarging neck mass. Ultrasound of the neck was suggestive of a thyroid cyst and fine needle aspiration cytology was negative for malignancy. He presented again 2 weeks later with increased swelling and pain suggestive of right neck abscess. An incision and drainage was performed and histopathology result of a proximal isolated enlarged lymph node biopsied revealed metastatic carcinoma. Subsequent right thyroid wedge biopsy finding 1 month later were confirmatory of ATC.
Fulltext Neutrophil-lymphocyte ratios in the prognostication of primary non-metastatic nasopharyngeal carcinoma

Liew KY, Zulkiflee AB

Braz J Otorhinolaryngol, 2017 10 19;84(6):764-771.
PMID: 29128472 DOI: 10.1016/j.bjorl.2017.09.004

INTRODUCTION: Nasopharyngeal carcinoma is a geographically and racially variable disease which has a high incidence in Malaysia. Based on current concepts in tumour related inflammation the inflammatory marker, neutrophil-lymphocyte ratio was tested to find its relationship with prognosis in nasopharyngeal carcinoma.
OBJECTIVE: To investigate the effect of the neutrophil-lymphocyte ratio on prognosis in non-metastatic primary nasopharyngeal carcinoma patients and to further refine the cut off between high and low neutrophil-lymphocyte ratio values.
METHODS: The medical charts of patients with histologically confirmed nasopharyngeal carcinoma from 1st January 2005 until 31st December 2009 were reviewed retrospectively and theneutrophil-lymphocyte ratio was calculated to see if there was any association between their higher values with higher failure rates.
RESULTS: Records of 98 patients (n=98) were retrieved and reviewed. Only neutrophil-lymphocyte ratio (p=0.004) and tumor node metastasis staging (p=0.002) were significantly different between recurrent and non-recurrent groups, with the neutrophil-lymphocyte ratio being independent of tumor node metastasis staging (p=0.007). Treatment failure was significantly higher in the high neutrophil-lymphocyte ratio group (p=0.001). Disease free survival was also significantly higher in this group (p=0.000077).
CONCLUSION: High neutrophil-lymphocyte ratio values are associated with higher rates of recurrence and worse disease free survival in non-metastatic nasopharyngeal carcinoma patients undergoing primary curative treatment.
Melioidosis: an uncommon cause of neck abscess

Zulkiflee AB, Prepageran N, Philip R

Am J Otolaryngol, 2008 Jan-Feb;29(1):72-4.
PMID: 18061838 DOI: 10.1016/j.amjoto.2007.02.004

INTRODUCTION: Melioidosis is a life-threatening disease caused by B. pseudomallei. It is endemic in Southeast Asia with a few reports from the Western world. It is transmitted via inhalation, ingestion or direct contact with an open wound. Clinically it may present with local or systemic symptoms. Mortality rate is very high in systemic disease; but local infection is usually mild, which causes delay in seeking medical attention.
CASE REPORT: We report a case of neck melioidosis presenting as a parapharyngeal abscess that was successfully managed with incision and drainage and intravenous ceftazidime and co-trimoxazole for 6 weeks followed by eradication therapy with oral co amoxiclav.
CONCLUSION: Neck melioidosis must be considered one of differential diagnoses for "cold abscesses" of the neck, especially in an endemic area, in Asian migrants, or in those with history of previous visit from the endemic regions.
Fulltext Unusual parapharyngeal lesion: aberrant thyroid gland

Feisal TK, Prepageran N, Shahrizal T, Zulkiflee AB

Singapore Med J, 2008 May;49(5):e137-8.
PMID: 18465039

An ectopic location of the thyroid gland usually occurs in the midline, starting anywhere from the tongue to the diaphragm. The occurrence of an ectopic thyroid gland in a non-midline site is extremely rare. We report a 32-year-old Malay woman with an aberrant thyroid gland presenting as a parapharyngeal lesion. She had a normally functioning thyroid gland. An ectopic thyroid should be considered as one of the differential diagnoses in the parapharyngeal mass.
Effects of Bluetooth device electromagnetic field on hearing: pilot study

Balachandran R, Prepageran N, Prepagaran N, Rahmat O, Zulkiflee AB, Hufaida KS

J Laryngol Otol, 2012 Apr;126(4):345-8.
PMID: 22310164 DOI: 10.1017/S0022215112000047

The Bluetooth wireless headset has been promoted as a 'hands-free' device with a low emission of electromagnetic radiation.
Hypoglossal nerve tumor: A rare primary extracranial meningioma of the neck

Zulkiflee AB, Prepageran N, Rahmat O, Jayalaskhmi P, Sharizal T

Ear Nose Throat J, 2012 Nov;91(11):E26-9.
PMID: 23288802

We report a case of primary extracranial meningioma arising from the hypoglossal nerve in a 54-year-old man who presented with a 9-month history of hoarseness and progressive dysphagia. He had also noticed that his tongue was deviated to the left and, as a result, he was having difficulty pronouncing words. Examination revealed fasciculation and muscle wasting on the left side of the tongue. Other cranial nerve functions were normal. Contrast-enhanced computed tomography detected a heterogeneous mass that had arisen above the bifurcation of the left common carotid artery and had extended to near the skull base. Transcervical excision of the tumor was performed, and histopathology identified it as a meningioma of the hypoglossal nerve. The patient recovered uneventfully, and he was without recurrence at more than 2 years of follow-up. A primary extracranial meningioma is extremely rare, and its presentation may be subtle. A thorough investigation is necessary to avoid fatal compressive symptoms.
Severe descending necrotizing mediastinitis: vacuum-assisted dressing did wonder

Liew YT, Lim EY, Zulkiflee AB, Prepageran N

Gen Thorac Cardiovasc Surg, 2017 Apr;65(4):225-228.
PMID: 27016203 DOI: 10.1007/s11748-016-0642-3

Descending necrotizing mediastinitis (DNM) is a rapidly progressive disease from the spread of cervical infection. Transcervical and transthoracic drainage was the recognized traditional surgical approach to achieve adequate clearance of infection. Non-invasive vacuum-assisted dressing is a new technique where applied negative pressure can help remove infective fluid and to promote wound healing. A 60-year-old man presented with odynophagia, fever and anterior neck swelling for 2 weeks. He was diagnosed to have anterior neck abscess and underwent surgical drainage. However, it did not respond well, but progressed to involve superior and inferior mediastinum. Vacuum-assisted dressing was applied for total of 2 weeks and the patient recovered without going through usual traditional transthoracic drainage. Vacuum drainage is a simple, safe and non-invasive method of managing DNM, in well selected group with small abscess cavity without airway obstruction and septicemia. This potential technique can lead to paradigm shift in treating life-threatening DNM.
Fulltext Integrated Anterior, Central, and Posterior Skull Base Unit - A New Perspective

Brand Y, Waran V, Zulkiflee AB, Lim E, Prepageran N

Front Surg, 2015;2:32.
PMID: 26258128 DOI: 10.3389/fsurg.2015.00032

The skull base is one of the most complex anatomical regions and forms the floor of the cranial cavity. Skull base surgery involves open, microscopic, and endoscopic approaches to the anterior, middle, or posterior cranial fossa. A multispecialty team approach is essential in treating patients with skull base lesions. Traditionally, rhinologists are involved in providing access to anterior skull base lesions while otologists are involved in the treatment of lesions of the posterior skull base. This is the case in most skull base centers today. In this article, we share a new perspective of an integrated skull base unit where a team of otolaryngologists and neurosurgeons treat anterior, middle, and posterior skull base pathologies. The rationale for this approach is that most technical skills required in skull base surgery are interchangeable and apply whether an endoscopic or microscopic approach is used. We show how the different skills apply to the different approaches and share our experience with an integrated skull base unit.
Malignant epithelioid haemangioendothelioma of the maxillary sinus

Wong HT, Mun KS, Zulkiflee AB, Prepageran N

Pathology, 2016 Jan;48(1):95-6.
PMID: 27020222 DOI: 10.1016/j.pathol.2015.11.022
Fulltext Prevalence and risk factors associated with otitis media with effusion in children visiting tertiary care centre in Malaysia

Tikaram A, Chew YK, Zulkiflee AB, Chong AW, Prepageran N

International Medical Journal Malaysia, 2012;11(1):37-40.
MyJurnal

Introduction: The aim of this study is to determine the prevalence of otitis media with effusion (OME) in Malaysian children between three months to twelve years of age and to identify the risk factors associated with it.
Materials and methods: This is a cross-sectional study consists of 153 children selected by stratified random sampling method. Parents of these children were interviewed with a structured questionnaire. Clinical examination, including otoscopic examination and tympanometry was performed for each child.
Results: The prevalence of OME was 18.3%. There was no statistical significant relationship between OME and gender, race, household size, attendance to daycare center, breast feeding, and exposure to passive smoking, allergy, and asthma.
Conclusion: The prevalence of OME is 18.3% in Malaysian children between three months to twelve years of age. Frequency of AOM is a statistically significant factor to the development of OME later in life. The different risk factors associated with OME are still controversial.
Lidocaine/Phenylephrine Nasal Spray versus Nebulization Prior to Nasoendoscopy: A Randomized Controlled Trial

Goh LC, Arvin B, Zulkiflee AB, Prepageran N

Otolaryngol Head Neck Surg, 2018 10;159(4):783-788.
PMID: 30126325 DOI: 10.1177/0194599818795852

Objective To objectively compare the nasal decongestion potency of lidocaine/phenylephrine when delivered with a nasal nebulizer and a nasal spray before a rigid nasoendoscopic examination. Study Design Open-label randomized controlled trial. Setting Multicenter study. Methods This prospective clinical trial involved 106 participants with untreated chronic rhinitis. Fifty-three participants had 400 μL of lidocaine/phenylephrine administered into the right nostril with a nasal nebulizer, while the remaining 53 participants had 400 μL administered with a nasal spray. The control was the left nostril. Nasal resistance at 150-Pa fixed pressure was evaluated with an active anterior rhinomanometry at 5, 10, 15, and 30 minutes postintervention. Pain score was assessed subjectively by applying pressure to the inferior turbinate 30 minutes after intervention. Results There was an overall reduction in nasal resistance of the right nostril when lidocaine/phenylephrine was administered with the nasal nebulizer in comparison with the nasal spray. However, a statistically significant difference in nasal resistance was seen only at 5 minutes ( P = .047), 15 minutes ( P = .016), and 30 minutes ( P = .036). The examining endoscopist further supported the degree of nasal decongestion via subjective assessment of the nasal cavity ( P = .001). Pain scores obtained after the intervention showed a significant decrease in pain threshold when the nasal nebulizer was used instead of the nasal spray ( P = .040). Conclusions This study suggests that the delivery of lidocaine/phenylephrine to the nasal cavity by the nasal nebulizer provides better decongestive and analgesic potency as compared with the delivery by nasal sprays.
Endoscopic transnasal removal of an intraconal foreign body using an image-guided surgical system

Teh D, Mohamad NF, Lim E, Zulkiflee AB, Narayanan P, Kamalden TA

Comput Assist Surg (Abingdon), 2016 Dec;21(1):25-28.
PMID: 27973957

Foreign bodies lodged in the intraconal space of the orbit pose a surgical challenge due to its deep location behind the globe. Image-guided endoscopic transnasal surgery facilitates the localization of the metallic foreign bodies and enables its safe removal with minimal surrounding tissue damage and optic nerve injury.
Mandibulotomy: an analysis of its morbidities

Nabil S, Nazimi AJ, Nordin R, Hariri F, Mohamad Yunus MR, Zulkiflee AB

Int J Oral Maxillofac Surg, 2018 Dec;47(12):1511-1518.
PMID: 30837061 DOI: 10.1016/j.ijom.2018.05.020

The mandibulotomy is a procedure that was developed to improve access in tumour resection. This study aimed to investigate the complications associated with mandibulotomy and analyze factors that could affect the risks of developing these complications. The hospital records of all patients who underwent a mandibulotomy as part of their tumour ablative surgery at two major centres in Malaysia were reviewed retrospectively. Demographic, clinical, and complications data were recorded and analyzed. Early postoperative complications occurred in 46.5% of the patients and post-radiation therapy complications in 16.1%. Wound dehiscence (27.9%) and inferior alveolar nerve injury (25.6%) were the common early postoperative complications. Dental injuries (9.7%) and plate exposure/infection (9.7%) were the common post-radiation therapy complications. Furthermore, inferior alveolar nerve injury and early abscess formation were significantly associated with the site of the mandibulotomy. The T-stage of a tumour but not the site of mandibulotomy was significantly associated with tumour margin clearance. Mandibulotomy does pose an added risk of complications for a patient undergoing tumour surgery. The benefits of mandibulotomy in terms of gaining margin clearance could not be proven in this study. The site of mandibulotomy appears to increase the risk of developing an inferior alveolar nerve injury.
A seven-year retrospective analysis of the clinicopathological and mycological manifestations of fungal rhinosinusitis in a single-centre tropical climate hospital

Goh LC, Shakri ED, Ong HY, Mustakim S, Shaariyah MM, Ng WSJ, et al.

J Laryngol Otol, 2017 Sep;131(9):813-816.
PMID: 28841131 DOI: 10.1017/S0022215117001505

OBJECTIVE: To evaluate the clinicopathological and mycological manifestations of fungal rhinosinusitis occurring in the Tengku Ampuan Rahimah Hospital, in Klang, Malaysia, which has a tropical climate.
METHODS: Records of patients treated from 2009 to 2016 were analysed retrospectively. Data from the records were indexed based on age, gender, clinical presentations, symptom duration, clinical signs and mycological growth.
RESULTS: Of 80 samples, 27 (33.75 per cent) had fungal growth. Sixteen patients were classified as having non-invasive fungal rhinosinusitis and 11 as having invasive fungal rhinosinusitis. The commonest clinical presentation was nasal polyposis in non-invasive fungal rhinosinusitis patients (p < 0.05) and ocular symptoms in invasive fungal rhinosinusitis patients (p < 0.05). The commonest organism was aspergillus sp. (p < 0.05) in non-invasive fungal rhinosinusitis and mucorales in invasive fungal rhinosinusitis.
CONCLUSION: There is an almost equal distribution of both invasive and non-invasive fungal rhinosinusitis, as seen in some Asian countries. Invasive fungal rhinosinusitis, while slightly uncommon when compared to non-invasive fungal rhinosinusitis, is potentially life threatening, and may require early and extensive surgical debridement. The clinical presentation of nasal polyposis was often associated with non-invasive fungal rhinosinusitis, whereas ocular symptoms were more likely to be associated with invasive fungal rhinosinusitis.

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