Displaying publications 1 - 20 of 31 in total

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  1. Varathan V, Mat Baki M, Kalimuthu S
    Cureus, 2023 Mar;15(3):e35863.
    PMID: 37033535 DOI: 10.7759/cureus.35863
    A laryngeal cyst is usually benign. The most common site origin of a cyst in the larynx is the lingual surface of the epiglottis. Epiglottic cysts are rare. Usually, it is asymptomatic in patients and can be treated conservatively if the size is small. Airway obstruction is very rare but could be life-threatening. If there is airway obstruction, the cyst should be removed immediately. Early detection and immediate management lead to favorable outcomes. A multidisciplinary-team approach with the ENT and anesthetic inputs are essential when dealing with the current condition. This case report highlights the management of such a patient who presented with airway obstruction due to an epiglottic cyst.
  2. Razali MN, Mat Baki M, Kew TY, Mohamad Yunus MR
    Indian J Otolaryngol Head Neck Surg, 2019 Oct;71(Suppl 1):93-95.
    PMID: 31741939 DOI: 10.1007/s12070-017-1116-3
    Basal cell adenocarcinoma (BCAC) is a rare tumour entity. Despite its tendency to be infiltrative and destructive tumour with propensity to recur, it rarely metastasizes and long-term outcome following surgery is favourable. This paper presents a 42-year-old male with residual BCAC of parotid gland that had extended into infratemporal fossa and intracranial. The important aspect of this case is the rarity occurrence of BCAC of parotid with intracranial extension and its surgical approaches to achieve tumour clearance.
  3. Mohd Shakri N, Mat Baki M, Mohamed AS, Azman M
    J Voice, 2023 Sep;37(5):803.e11-803.e21.
    PMID: 34176683 DOI: 10.1016/j.jvoice.2021.04.020
    BACKGROUND: Communication adjustment from patients' perspective is paramount to ensure optimization of voice rehabilitation post laryngectomy. Very few specific self-rating tools exist with the Self-Evaluation of Communication Experiences after Laryngectomy (SECEL) having the most evidence regarding validity, reliability and clinical utility.

    OBJECTIVES: This study aimed to translate and validate a Bahasa Malaysia version of SECEL (mSECEL) using a validated framework of transcultural adaptation.

    METHODS: This cross-sectional study was conducted in the Otorhinolaryngology, Department of Universiti Kebangsaan Malaysia Medical Centre from February 2019 to May 2020. The mSECEL was produced following a rigorous forward and backward translation. Eighty-three laryngectomees (78 male, five female) using various methods of alaryngeal communication (47 voice prosthesis, 29 electrolarynx, three esophageal speech and four pen and paper), completed the mSECEL and mVHI-10 before head and neck and flexible laryngoscopic examinations. The mSECEL was repeated in 2 weeks via telephone interview or clinic visit. Its reliability was assessed using intraclass correlation. The Pearson product-moment correlation test was used to analyze correlation between the mSECEL and mVHI-10.

    RESULTS: The mSECEL questionnaire showed strong internal consistency with the Cronbach alpha of >0.90 for total score, Environmental and Attitude subscale. The test-retest reliability for total mSECEL score was high with the intraclass correlation of 0.97. There was a highly significant positive correlation between the mSECEL total score and mVHI-10 (P < 0.001). Items in the General subscale showed poorer internal consistency with Cronbach alpha ranging 0.55-0.46 and poor correlation with mVHI-10.

    CONCLUSIONS: The Bahasa Malaysia version of the SECEL measure is a valid and reliable instrument to evaluate communication perception after laryngectomy. Future studies should consider subscale validation and further abbreviation of its items to make this measure clinically relevant.

  4. Mahmud KA, Zakaria R, Azman M, Mat Baki M
    ORL J Otorhinolaryngol Relat Spec, 2021 05 05;83(4):295-298.
    PMID: 33951656 DOI: 10.1159/000515424
    Adult laryngeal haemangioma is normally seen in the supraglottic or glottic region. Transglottic haemangioma is unusual, and treatment with primary endolaryngeal surgical excision may lead to undesirable bleeding and poor voice outcomes. A 25-year-old female presented with hoarseness and progressive upper airway obstruction symptoms. Videoendoscopy showed haemangioma involving all unilateral subunits of the larynx obstructing half of the subglottis. The transglottic haemangioma was treated with endolaryngeal ethanol injection with prior tracheostomy under local anaesthesia. Endolaryngeal laser surgery was performed later on to remove small residual haemangioma and granuloma. The haemangioma resolved; however, the ethanol injection to the paraglottic space results in vocal fold immobility but with favourable position and good muscle tone and bulk. The patient was successfully decannulated. Post-intervention subjective and objective voice assessments showed normal parameters except slight impairment of voice handicap index-10 with a total score of 12. Adult transglottic haemangioma can cause upper airway obstruction and requires intervention. Excision of the lesion endoscopically without sacrificing voice is achievable.
  5. Sairin ME, Mat Baki M, Manap RA, Puteh SEW, Azman M, Mohamed AS
    Auris Nasus Larynx, 2020 Oct;47(5):842-848.
    PMID: 32273190 DOI: 10.1016/j.anl.2020.03.004
    OBJECTIVE: This study investigated the reliability of body plethysmography in comparison to spirometry in objectively measuring upper airway functions.

    METHODS: The study population consisted of 53 participants, 23 patients with BVFI after endolaryngeal laser posterior cordectomy and 30 healthy volunteers. All of them had body plethysmography (airway resistance, Raw), spirometry (ratio of forced expiratory flow at 50% to forced inspiratory flow at 50%, FEF50/FIF50 and peak inspiratory flow, PIF), 6 min-walking-test (6MWT) and Medical Research Council (MRC) dyspnea scale measurements. The tests were repeated and reliability was evaluated using intraclass correlation (ICC) and Spearman correlation.

    RESULTS: The reliability of Raw was high with ICC of 0.92, comparable to the spirometry measurements: FEF50/FIF50(ICC = 0.72) and PIF (ICC = 0.97). The mean of Raw was significantly higher in patient group. A strong significant correlation between Raw and MRC dyspnea scale (r = 0.79; p<0.05) and a moderate negative correlation between Raw and 6MWT (r = 0.4; p<0.05) was demonstrated.

    CONCLUSION: Body plethysmography (Raw) is a reliable tool in objective measurement of upper airway resistance that reflects the patient's perception of breathlessness. A larger number of participants are necessary to confirm this finding.

  6. Lum SG, Mahmud N, Isa N, Mat Baki M
    Medeni Med J, 2020;35(4):349-355.
    PMID: 33717629 DOI: 10.5222/MMJ.2020.83479
    Angiosarcoma is one of the rarest types of malignant vascular tumours that involved the head and neck region. It predominantly affects the scalp and superficial soft tissues. Angiosarcoma arising from the deep cervical soft tissue is extremely rare. There is a limited literature on neck angiosarcoma that occurred simultaneously with papillary thyroid carcinoma. We report a rare case of concurrent papillary thyroid carcinoma and cervical epithelioid angiosarcoma, and postoperative rapid progression of residual angiosarcoma that mimicked a neck haematoma. The diagnostic challenge and possible etiologies have been discussed here.
  7. Kuang Joo L, Abdullah N, Abd Mutalib NS, Mohd Saad S, Mat Baki M
    Cureus, 2023 Dec;15(12):e49949.
    PMID: 38179341 DOI: 10.7759/cureus.49949
    In the presence of the coronavirus disease 2019 (COVID-19) pandemic, a lengthy period of movement-control order had caused huge negative impact on the socioeconomic status of some patients and affected their mental health. Self-quarantine in this pandemic era serves as a major stressful event that may lead to psychosis and depression. Cases of suicide and attempted suicide raised drastically throughout the pandemic. We are discussing two cases of attempted suicide by people who were traumatized in different ways by the COVID-19 pandemic, but they chose the same solution with a similar method, cutting their throats in order to commit suicide. Both cases were proceeded with emergency neck exploration, laryngeal repair, and tracheostomy. Postoperatively, psychiatric and psychological treatment was initiated.
  8. Idris F, Azman M, Mohd Zawawi NS, Mat Baki M
    J Voice, 2023 Jul 25.
    PMID: 37500358 DOI: 10.1016/j.jvoice.2023.05.021
    OBJECTIVE: Determining the cutoff point on Bahasa Malaysia version of Voice Handicap Index (mVHI-10) questionnaire scores for distinguishing between dysphonic and normal voice samples.

    STUDY DESIGN: A cross-sectional study was conducted in the tertiary hospital, Otorhinolaryngology-Head and Neck clinic.

    METHODS: The study involved 205 subjects (105 in the dysphonia group; 100 in the normal group) with a complete database of flexible laryngoscopy/stroboscopy, voice recording, acoustic analysis, and mVHI-10 score. A sample with a discrepancy between subjective evaluation and acoustic analysis results was excluded from the study. Each classified dataset matched with the respective mVHI-10 questionnaire score. Finally, all the collected data were subjected to data analysis.

    RESULTS: The best cutoff point for mVHI-10 was 7.5 by the receiver operating characteristic curve, with an area under the curve value of 0.997. Its sensitivity, specificity, positive predictive value, and negative predictive value were 92.4%, 100.0%, 100.0%, and 93.0%, respectively.

    CONCLUSIONS: The best cutoff point for mVHI-10 is 7.5, as determined by stringent data evaluation and rigorous statistical analysis. With excellent diagnostic accuracy properties, it enhances the usage of the mVHI-10 questionnaire as an excellent screening tool. Nevertheless, we advocate multidimensional voice assessment for diagnostic purposes.

  9. Blackshaw H, Carding P, Jepson M, Mat Baki M, Ambler G, Schilder A, et al.
    BMJ Open, 2017 Sep 29;7(9):e016871.
    PMID: 28965097 DOI: 10.1136/bmjopen-2017-016871
    INTRODUCTION: A functioning voice is essential for normal human communication. A good voice requires two moving vocal folds; if one fold is paralysed (unilateral vocal fold paralysis (UVFP)) people suffer from a breathy, weak voice that tires easily and is unable to function normally. UVFP can also result in choking and breathlessness. Current treatment for adults with UVFP is speech therapy to stimulate recovery of vocal fold (VF) motion or function and/or injection of the paralysed VF with a material to move it into a more favourable position for the functioning VF to close against. When these therapies are unsuccessful, or only provide temporary relief, surgery is offered. Two available surgical techniques are: (1) surgical medialisation; placing an implant near the paralysed VF to move it to the middle (thyroplasty) and/or repositioning the cartilage (arytenoid adduction) or (2) restoring the nerve supply to the VF (laryngeal reinnervation). Currently there is limited evidence to determine which surgery should be offered to adults with UVFP.

    METHODS AND ANALYSIS: A feasibility study to test the practicality of running a multicentre, randomised clinical trial of surgery for UVFP, including: (1) a qualitative study to understand the recruitment process and how it operates in clinical centres and (2) a small randomised trial of 30 participants recruited at 3 UK sites comparing non-selective laryngeal reinnervation to type I thyroplasty. Participants will be followed up for 12 months. The primary outcome focuses on recruitment and retention, with secondary outcomes covering voice, swallowing and quality of life.

    ETHICS AND DISSEMINATION: Ethical approval was received from National Research Ethics Service-Committee Bromley (reference 11/LO/0583). In addition to dissemination of results through presentation and publication of peer-reviewed articles, results will be shared with key clinician and patient groups required to develop the future large-scale randomised controlled trial.

    TRIAL REGISTRATION NUMBER: ISRCTN90201732; 16 December 2015.

  10. Fang SY, Wan Abdul Halim WH, Mat Baki M, Din NM
    Graefes Arch Clin Exp Ophthalmol, 2018 Apr;256(4):783-790.
    PMID: 29492688 DOI: 10.1007/s00417-018-3919-7
    PURPOSE: Obstructive sleep apnea syndrome (OSAS) patients are at risk of glaucoma but the risk increases if they have higher intraocular pressure (IOP) while sleeping. We aim to evaluate the postural effect of upright and prolong supine positions on IOP in these patients.

    METHODS: This is a cross-sectional study involving 27 patients with symptoms of OSAS seen at a tertiary institutional center and 25 normal controls performed between June 2015 and June 2016. All patients and controls underwent a polysomnography (PSG) test and were diagnosed with OSAS based on the apnea-hypopnea index (AHI). Patients are those with OSAS symptoms and had AHI > 5, whereas controls are staffs from the ophthalmology clinic without clinical criteria for OSAS and had PSG result of AHI

  11. Sabir Husin Athar PP, Yahya Z, Mat Baki M, Abdullah A
    Malays J Med Sci, 2009 Apr;16(2):38-9.
    PMID: 22589657
    Benign parotid neoplasm and inflammatory processes of the parotid resulting in facial paralysis are extremely rare. We report a 72-year-old Malay female with poorly-controlled diabetes mellitus who presented with a painful right parotid swelling associated with right facial nerve palsy. The paralysis (Grade VI, House and Brackmann classification) remained after six months.
  12. Mohd Ramli SS, Mat Baki M
    BMJ Case Rep, 2022 Feb 28;15(2).
    PMID: 35228218 DOI: 10.1136/bcr-2021-245840
    Systemic lupus erythematous (SLE) is an autoimmune disease commonly treated with steroid which leads to immunosuppression and increased susceptibility to infection. Chronic laryngitis with whitish lesion on the true vocal fold in SLE may be caused by opportunistic organisms, such as tuberculous, fungal and Staphylococcus aureus infections. Videolaryngostroboscopy may be helpful in leading to the diagnosis and optimum treatment of glottic S. aureus A woman in her 40s with SLE presented with progressively worsening hoarseness for 2 months, accompanied by sore throat and odynophagia. Videoendoscopy showed erythematous and oedematous bilateral vocal fold with whitish lesion seen at the edge of middle one-third while the videolaryngostroboscopic evaluation showed there was severe asymmetry of the bilateral vocal folds, with severely reduced amplitude during phonation where the vocal cords were not vibrating, aperiodic vibratory cycles and 'always open', incomplete closure of vocal cord pattern. Later, endolaryngeal microsurgery and biopsy of the lesion confirmed of glottic S. aureus Her symptoms and followed up videolaryngostroboscopy showed resolution to normal findings after 6 weeks of cloxacillin. S. aureus infection of the glottis is a differential diagnosis in a chronic laryngitis with leucoplakic lesion in an immunosuppressive patient. Videolaryngostroboscopy has an important role in diagnosis, evaluation and treatment decision.
  13. Mat Baki M, Clarke P, Birchall MA
    J Laryngol Otol, 2018 Sep;132(9):846-851.
    PMID: 30180919 DOI: 10.1017/S0022215118000476
    OBJECTIVE: This prospective case series aimed to present the outcomes of immediate selective laryngeal reinnervation.

    METHODS: Two middle-aged women with vagal paraganglioma undergoing an excision operation underwent immediate selective laryngeal reinnervation using the phrenic nerve and ansa cervicalis as the donor nerve. Multidimensional outcome measures were employed pre-operatively, and at 1, 6 and 12 months post-operatively.

    RESULTS: The voice handicap index-10 score improved from 23 (patient 1) and 18 (patient 2) at 1 month post-operation, to 5 (patient 1) and 1 (patient 2) at 12 months. The Eating Assessment Tool 10 score improved from 20 (patient 1) and 24 (patient 2) at 1 month post-operation, to 3 (patient 1) and 1 (patient 2) at 12 months. There was slight vocal fold abduction observed in patient one and no obvious abduction in patient two.

    CONCLUSION: Selective reinnervation is safe to perform following vagal paraganglioma excision conducted on the same side. Voice and swallowing improvements were demonstrated, but no significant vocal fold abduction was achieved.

  14. Sharudin SN, Thangavelu T, Roslim SN, Hitam S, Mat Baki M
    Cureus, 2022 Oct;14(10):e30250.
    PMID: 36381797 DOI: 10.7759/cureus.30250
    Lipoma is a benign mesenchymal tumor with 13% occurrence in the head and neck region. Despite being the commonest type of tumor, it only accounts for 0.6% of the upper aerodigestive tract. We report a case of a 41-year-old gentleman who presented with progressively worsening dysphagia and a muffled voice. A flexible nasopharyngeal endoscope showed a solitary well-lobulated pedunculated cystic-looking mass occupying the oropharynx arising from the vallecular space and lingual surface of the epiglottis with a partially seen mobile posterior vocal cord. CT of the neck showed a single lesion with fat attenuation in the right vallecula and right lateral lingual epiglottis. The patient underwent endoscopic surgical excision and fully recovered post-operatively. Although rare, lipoma must be considered one of the differential diagnoses of midline laryngeal mass. Therefore, prompt excision needs to be performed to prevent a catastrophic outcome.
  15. 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.

  16. Jumaat AF, Mohamad Yunus MR, Yong DJ, Md Zin RR, Mat Baki M
    Iran J Otorhinolaryngol, 2023 Mar;35(127):101-108.
    PMID: 37223400 DOI: 10.22038/IJORL.2023.57806.2995
    INTRODUCTION: An abnormal mass in the head and neck involving the supraglottic and cervical region offers a wide range of differential diagnoses. The pathology is either benign or malignant in nature. Castleman disease (CD) is an uncommon lymphoproliferative disorder characterised by hypervascular lymphoid hyperplasia and is classified into unicentric or multicentric disease. Histopathologically it is divided into hyaline vascular (HV), plasma cell (PC), and mixed cellularity variants. The multicentric disease is linked with PC and has the propensity to progress to lymphoma or Kaposi Sarcoma.

    CASE REPORT: We report a case of a 45-year-old gentleman who presented with a painless anterior neck swelling and left supraglottic mass for six months. Computed tomography (CT) contrast imaging demonstrated a homogenous enhancing lesion at the left supraglottic and the midline of the anterior neck with erosive changes of the thyroid cartilage. A surgical resection of the anterior neck mass was performed. The diagnosis of Castleman disease plasma cell variant was made by histopathologic evaluation. The patient remained well post-resection.

    CONCLUSION: Supraglottic multicentric Castleman disease is the least expected diagnosis in this case. Unicentric disease is treated with surgery. However, limited studies are available in determining the effectiveness of surgery in multicentric diseases. The plasma cell variant requires a multidisciplinary and multimodal approach due to an inclination towards malignancy. Research is needed to determine the role of surgery in multicentric disease and to develop optimum guidelines for managing cases. To date, there is unsubstantial literature describing supraglottic multicentric disease.

  17. Tan SN, Gendeh HS, Sani A, Mat-Baki M
    Int J Surg Case Rep, 2016;21:99-103.
    PMID: 26957189 DOI: 10.1016/j.ijscr.2016.02.012
    Myeloid Sarcoma (MS) or Granulocytic Sarcoma is an uncommon laryngeal malignancy. It may arise from myelodysplastic syndromes, malignancy or de novo. Presentation in the larynx is rare and some may present with Acute Myeloid Leukaemia (AML) whereby the later may be asymptomatic.
  18. Ab Rani A, Azman M, Ubaidah MA, Mohamad Yunus MR, Sani A, Mat Baki M
    J Voice, 2021 May;35(3):487-492.
    PMID: 31732294 DOI: 10.1016/j.jvoice.2019.09.017
    OBJECTIVE: This study compared the voice outcomes of selected patients with unilateral vocal fold palsy (UVFP) who underwent either nonselective laryngeal reinnervation (LR) or Type 1 thyroplasty (thyroplasty) in a Malaysian tertiary centre using multidimensional voice assessments.

    PARTICIPANTS: The study included 16 patients with UVFP who underwent either LR (9 patients) or thyroplasty (7 patients) between 2015 and 2018 who fulfilled the inclusion criteria.

    MAIN OUTCOME MEASURES: The outcomes were measured subjectively and objectively with: (1) voice handicap index-10 (VHI-10- Malay version); (2) auditory perceptual evaluation using the breathiness component of Grade, Roughness, Breathiness, Asthenia, Strain scale; (3) maximum phonation time (MPT); and (4) acoustic analysis (jitter%, shimmer%, and NHR) using OperaVOXTM. The outcomes were measured at baseline, 6 and 12-months postoperative. The comparison of outcomes between pre and postoperative of each group was evaluated using one-way ANOVA test. Mann-Whitney test was used to compare the outcomes between the two groups.

    RESULTS: Comparison of each group at different time points showed significant improvement of VHI-10 and MPT of LR group between baseline and 12 months (P ≤ 0.05) whereas, the improvement in thyroplasty group was observed at all time points (P ≤ 0.05). When comparing between the two groups at 12 months, the VHI-10 and MPT was significantly better in the LR group than thyroplasty group with P = 0.004 and P = 0.001 respectively. Other outcome measures did not reveal significant difference between the two groups.

    CONCLUSION: This observational study showed that LR may be better than thyroplasty in improving VHI-10 and MPT in selected patients with UVFP.

  19. Mat Baki M, Mohd Ridzam MS, Abdul Rahim N
    Cureus, 2022 Oct;14(10):e29802.
    PMID: 36337830 DOI: 10.7759/cureus.29802
    Total laryngectomy (TL) is the treatment of choice for advanced glottic cancer. Post-operative complications can be debilitating for patients, family members and healthcare workers. Complications following TL have been reported in many studies, with pharyngocutaneous fistula and wound infection being the most common. Identifying the risk factors that may give rise to these complications is vital to minimise post-operative morbidity. We present the case of a 62-year-old male who underwent salvage TL following radiation therapy for recurrent glottic carcinoma. The patient developed diffuse submental swelling upon the commencement of oral feeding. A flexible nasopharyngolaryngoscopy revealed a sloughy area at the neopharynx, with the finding of a sealed anastomotic leak on a repeat barium swallow study. We report persistent Pseudomonas aeruginosa infection following salvage TL, after a sealed anastomotic leak.
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