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  1. Irfan M, Shahid H, Baharudin A, Friedrich G
    Med J Malaysia, 2009 Mar;64(1):89-90.
    PMID: 19852333 MyJurnal
    Vocal cord palsy secondary to recurrent laryngeal nerve injury may be attributable to trauma, infiltrating neoplasm, congenital cardiac anomaly and others. Regardless the causes, majority of unilateral adductor palsy cases are usually managed by speech rehabilitation in order to allow compensation. In selected cases, medialization procedure may be required to achieve a complete glottal closure during phonation. Multiple techniques have been developed to achieve this goal. This case report illustrates the recent advancement in vocal fold medialization procedure, which has not been widely practiced in Malaysia.
    Matched MeSH terms: Vocal Cord Paralysis/surgery*
  2. Hasniah AL, Asiah K, Mariana D, Anida AR, Norzila MZ, Sahrir S
    Med J Malaysia, 2006 Dec;61(5):626-9.
    PMID: 17623966 MyJurnal
    Congenital upper airway obstruction is a relatively rare but important cause of major respiratory problems in the neonatal period. Vocal cord paralysis is the second most common cause of congenital airway obstruction presenting with neonatal stridor. It is often the reason for the failure of neonates to wean from the respiratory support. A retrospective analysis of medical record review was conducted. There were seven paediatric patients diagnosed with bilateral vocal fold paralysis in the past three years, of which five were recently diagnosed. All patients underwent flexible with/without rigid bronchoscopes to confirm the diagnosis. This case series highlight our experience in managing the problem of bilateral vocal cord paralysis in the paediatric population, with particular emphasis on their clinical presentations, associated complications and both upper and lower airway abnormalities. The management options and outcome of these patients will also be discussed.
    Matched MeSH terms: Vocal Cord Paralysis/surgery
  3. 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.

    Matched MeSH terms: Vocal Cord Paralysis/surgery*
  4. Johari SF, Azman M, Mohamed AS, Baki MM
    J Laryngol Otol, 2020 Dec;134(12):1085-1093.
    PMID: 33308327 DOI: 10.1017/S0022215120002558
    OBJECTIVE: To evaluate voice intensity as the primary outcome measurement when treating unilateral vocal fold paralysis patients.

    METHODS: This prospective observational study comprised 34 newly diagnosed unilateral vocal fold paralysis patients undergoing surgical interventions: injection laryngoplasty or medialisation thyroplasty. Voice assessments, including maximum vocal intensity and other acoustic parameters, were performed at baseline and at one and three months post-intervention. Maximum vocal intensity was also repeated within two weeks before any surgical interventions were performed. The results were compared between different time points and between the two intervention groups.

    RESULTS: Maximum vocal intensity showed high internal consistency. Statistically significant improvements were seen in maximum vocal intensity, Voice Handicap Index-10 and other acoustic analyses at one and three months post-intervention. A significant moderate negative correlation was demonstrated between maximum vocal intensity and Voice Handicap Index-10, shimmer and jitter. There were no significant differences in voice outcomes between injection laryngoplasty and medialisation thyroplasty patients at any time point.

    CONCLUSION: Maximum vocal intensity can be applied as a treatment outcome measure in unilateral vocal fold paralysis patients; it can demonstrate the effectiveness of treatment and moderately correlates with self-reported outcome measures.

    Matched MeSH terms: Vocal Cord Paralysis/surgery*
  5. Nasir ZM, Azman M, Baki MM, Mohamed AS, Kew TY, Zaki FM
    Surg Radiol Anat, 2021 Aug;43(8):1225-1233.
    PMID: 33388863 DOI: 10.1007/s00276-020-02639-9
    PURPOSE: This study aims to determine laryngeal dimension in relation to all three transcutaneous injection laryngoplasty (TIL) approaches (thyrohyoid, transthyroid and cricothyroid) using three-dimensionally reconstructed Computed Tomography (CT) scan and compare the measurements between sex, age group and ethnicity.

    METHODS: CT scans of the neck of two hundred patients were analysed by two groups of raters. For thyrohyoid approach, mean distance from the superior border of the thyroid cartilage to the laryngeal cavity (THd) and mean angle from the superior border of the thyroid cartilage to mid-true cords (THa) were measured. For transthyroid approach, mean distance from mid-thyroid cartilage to mid-true cords (TTd) and Hounsfield unit (HU) at mid-thyroid cartilage (TTc) were measured. For cricothyroid approach, mean distance from the inferior border of the thyroid cartilage to the laryngeal cavity (CTd) and mean angle from the inferior border of the thyroid cartilage to mid-true cords (CTa) were measured.

    RESULTS: There were statistically significant differences between males and females for all measurements except for CTa (p  0.05). There was a significant fair positive correlation between age and TTc (p = 0.0002). For all measurements obtained, there were moderate to excellent inter-group consistency and intra-rater reliability.

    CONCLUSION: This study demonstrated a significant sex dimorphism that may influence the three TIL approaches except for needle angulation in the cricothyroid approach. The knowledge of laryngeal dimension is important to increase success in TIL procedure.

    Matched MeSH terms: Vocal Cord Paralysis/surgery*
  6. 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.

    Matched MeSH terms: Vocal Cord Paralysis/surgery
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