J F Thong

Singapore General Hospital, Tumasik, Singapore

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Publications (20)26.63 Total impact

  • Jiun Fong Thong · Tiong Yong Tan · Shi Wang · Paul Mok · David Loke
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    ABSTRACT: A 30-year-old woman presented for evaluation of a hard, enlarging, submental mass that was fixed to the underlying mandible. Fine-needle aspiration cytology initially led to a diagnosis of pleomorphic adenoma, which was unusual given the superficial location of the lesion on computed tomography. The lesion was a well-defined rim-enhancing mass, and it had displaced adjacent structures medially. Intraoperatively, the mass was found to abut against and erode the mandibular cortex. A diagnosis of nodular fasciitis was established by histologic analysis. Such a location for this tumor is unusual. The prognosis for patients with this benign condition is excellent following complete surgical excision. We discuss the clinical presentation and the cytologic, histologic, and radiologic features of this uncommon entity.
    No preview · Article · Oct 2014 · Ear, nose, & throat journal
  • Jiun Fong Thong · Deyali Chatterjee · Siew Yoong Hwang
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    ABSTRACT: We describe the use of an endoscopic modified Lothrop approach for clearance of an extensive sinonasal-type hemangiopericytoma of the nasal cavity and paranasal sinuses with bilateral frontal sinus involvement in a 44-year-old woman. The modified Lothrop approach is conventionally used to treat sinusitis, but with some slight modifications to the technique, it can also be used for tumor excision.
    No preview · Article · Mar 2014 · Ear, nose, & throat journal
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    ABSTRACT: Introduction: This study evaluated the efficacy of tinnitus retraining therapy (TRT) in habituating patients with tinnitus. Materials and methods: This is a retrospective review of patients who underwent TRT in a tertiary referral Otorhinolaryngology unit. Patients were followed up with structured interviews with the aid of questionnaire forms. Habituation following TRT was evaluated. Results: A total of 702 patients were included (55% male, 45% female). Habituation of reaction to tinnitus and habituation of perception were analysed. Average duration of follow up was 33 months. In total, 68% of patients described improvement in annoyance following TRT. Of these patients, 80% of them described habituation of perception as well. There was no statistical difference in gender and age between patients who did and did not respond to TRT. However, duration of treatment was significantly longer in patients who habituated (P <0.05). Patients who adopted treatment strategies recommended based on Jastreboff's TRT categories were also found to have higher success rates compared to those who refused. Conclusion: The goal of TRT is to achieve habituation of reaction to tinnitus. Habituation of perception is often a secondary result of sufficiently habituated response. From our study, more than two thirds of patients with tinnitus achieved habituation of reaction and of these, the majority also habituated to awareness of the tinnitus.
    Preview · Article · Dec 2013 · Annals of the Academy of Medicine, Singapore
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    ABSTRACT: Aim: To compare narrow-band images of nasopharyngeal carcinoma with those of normal adenoidal tissue. Method: Patients with a nasopharyngeal mass were evaluated using both conventional white light and narrow-band light. Biopsies were performed and Epstein-Barr viral serology was tested for all patients. Results: Thirty consecutive patients were recruited. Twenty-one patients had normal adenoidal tissue and seven had nasopharyngeal carcinoma. One patient with papillary adenocarcinoma was excluded. The features of narrow-band imaging in normal adenoidal tissue were: (1) a regularly arranged follicular pattern, and (2) each 'follicle' comprising a pale centre with surrounding dark periphery. The features of narrow-band imaging in nasopharyngeal carcinoma were: (1) absence of surface patterns (n = 7), and/or (2) 'reverse', haphazard follicular pattern comprising a dark brown centre and pale periphery (n = 3). Conclusion: Narrow-band imaging of the surface of adenoidal tissue and nasopharyngeal carcinoma appears to identify distinct, characteristic features as described. Narrow-band imaging may be a useful adjunct in differentiating normal adenoidal tissue from malignancy. Further studies are needed to evaluate its diagnostic accuracy.
    Preview · Article · Jan 2013 · The Journal of Laryngology & Otology
  • J F Thong · P Mok · D Loke
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    ABSTRACT: This is the first report of recurrent nasopharyngeal carcinoma (NPC) presenting as a cerebellopontine angle mass. The clinical presentation, investigation and management of this case, as well as the confusion and dilemma caused, are discussed. We hope to increase awareness on the multifaceted ways in which recurrent NPC could present and to share the lessons learnt from our management of this unusual and unfortunate case.
    No preview · Article · Mar 2012 · Singapore medical journal
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    Jiun Fong Thong · Mei Ching Wong · S. Junaidah · Yew Meng Chan
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    ABSTRACT: Objective: Decreased sound tolerance and hyperacusis are frequently found in patients who complain of tinnitus. This study aims to investigate the efficacy of Tinnitus Retraining Therapy (TRT) in patients with hyperacusis.
    Preview · Article · Sep 2011 · Otolaryngology Head and Neck Surgery
  • Jiun Fong Thong · Julian Lee
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    ABSTRACT: Treatment of frontal sinus fractures has been controversial for years. The aim of treatment, besides cosmetic restoration, is to create a “safe” sinus especially in those with evidence of injury to the frontal sinus outflow tract. Early and late complications include acute and chronic sinusitis, mucocoele and mucopyocoele formation, brain abscess and osteomyelitis. Osteoplastic flap with frontal sinus obliteration or cranialisation is most commonly performed. With the advent of modern endoscopic and advanced imaging techniques, endoscopic sinus surgery for treatment of diseases of the frontal sinus is ever increasing. In this paper, we describe our successful experience using a single-stage, combined open and transnasal endoscopic technique in management of patients with anterior table frontal sinus fractures involving the frontal sinus outflow tract. KeywordsFrontal sinus fracture–Frontal sinus outflow tract–Endoscopic surgery
    No preview · Article · Aug 2011 · European Journal of Plastic Surgery
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    J F Thong · P Mok · D Loke
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    ABSTRACT: Communication between medical specialists and primary care providers in the community plays a pertinent role in patient care and doctor education. Referral and reply letters are the most common means by which doctors exchange information. Much of clinician time is spent writing letters, but the information or the format in which the letter is written may not meet the needs of the recipient. This study aimed to determine the type of reply letter preferred by general practitioners (GPs) and as such, attempts to improve communication between doctors as part of a quality assurance survey. Questionnaires were mailed out to 1,700 GPs in Singapore. Each questionnaire was accompanied by two sample reply letters from the Department of Otorhinolaryngology-Head and Neck Surgery. The sample letters were written in different formats. Letter 1 was written in a non-structured, free text format and Letter 2 included a structured summary at the beginning. Both letters contained the same amount of information and the same number of words. A total of 535 replies (response rate 32 percent) were received. Letter 2 was preferred in 97 percent of the responses. 96 percent of the doctors found Letter 2 to be easier to read, while 86 percent felt it contained more information and 64 percent felt that Letter 1 took a longer time to read. Our study shows that there is a preference for diagnosis and treatment plan to be presented in a summary style report rather than as free text. A structured format for reply letters, including the use of headings, allows readers to easily identify the information desired and thus improves the quality of correspondence between specialists and GPs.
    Preview · Article · Oct 2010 · Singapore medical journal
  • J F Thong · S Lo

    No preview · Article · Oct 2009 · Clinical otolaryngology: official journal of ENT-UK; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
  • J F Thong · K P Pang · J K Siow
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    ABSTRACT: Mucosal haemangiomas are unusual and typically involve frequently traumatised areas such as the lip, buccal mucosa and lateral borders of the tongue. Uvular haemangioma is rare and to our knowledge, has never been reported to cause obstructive sleep apnoea (OSA). We report an unusual case of uvular haemangioma causing loud habitual snoring and symptoms suggestive of OSA. This case report illustrates a rare cause of OSA and demonstrates the efficacy of surgery for obvious obstructive lesions of the pharynx.
    No preview · Article · Dec 2008 · The Medical journal of Malaysia
  • Jiun Fong Thong · Kenny P Pang
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    ABSTRACT: To assess the correlation between clinical symptoms and examination findings with severity of obstructive sleep apnea (OSA). Prospective observational study. Otorhinolaryngology sleep clinic in a tertiary referral centre. Consecutive patients referred to the sleep clinic with a suspected diagnosis of OSA. Body mass index (BMI), Epworth Sleepiness Scale (ESS) score, tonsil size, modified Mallampati index (MMP), Müller manoeuvre, reflux finding score (RFS), apnea-hypopnea index (AHI), lowest oxygen saturation, and percentage of rapid eye movement sleep. Eighty patients (14 female, 66 male), with a mean age of 42.9 years (range 22-66), were included in the study. The mean BMI was 27.6 (range 20-39). A correlation was found between ESS score and anteroposterior pharyngeal wall collapse at the level of the soft palate during Müller manoeuvre (r=.3, p=.02). BMI was significantly associated with a history of hypertension (r=.3, p=.01), MMP (r=.3, p=.001), and lateral wall collapse at the level of the soft palate during Müller manoeuvre (r=.4, p=.0001). OSA severity correlated significantly with male gender (p=.02), history of hypertension (r=.5, p<.0001), BMI (r=.2, p=.03), MMP (r=.3, p=.003), and upper airway collapse during Müller manoeuvre. Clinical findings in patients with OSA do correlate with the severity of OSA and polysomnographic findings. The degree of upper airway collapse during Müller manoeuvre does correlate with AHI severity. Accuracy in predicting the presence and severity of OSA allows for greater cost-effectiveness in screening patients prior to polysomnography.
    No preview · Article · Dec 2008 · Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale
  • J.F. Thong · K.L. Chuah
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    ABSTRACT: The Epstein-Barr virus-associated smooth muscle tumour (EBV-SMT) is a rare entity that has only recently been recognised. Since its first description in 1993, it has been reported only in immunocompromised patients, and generally presents as one or more non-specific mass lesions which may arise almost anywhere within the body. Because of its sporadic occurrence, non-specific presenting features and frequently unusual sites of occurrence, it often presents a diagnostic challenge for the clinician. We describe an interesting patient with an EBV-SMT which masqueraded as nasopharyngeal carcinoma, presenting with serous otitis media, nasopharyngeal mass and raised Epstein-Barr virus (EBV) serology.
    No preview · Article · Jun 2008 · Auris, nasus, larynx
  • J F Thong · J Lee · S Yeak · J K Siow

    No preview · Article · Jan 2008 · Clinical otolaryngology: official journal of ENT-UK; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
  • J F Thong · C Wood · S Lo · J Knight

    No preview · Article · Jan 2008 · Clinical otolaryngology: official journal of ENT-UK; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
  • J.F. Thong · S. Lo

    No preview · Article · Dec 2007 · Clinical otolaryngology: official journal of ENT-UK; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
  • J F Thong · S Lo

    No preview · Article · Nov 2007 · Clinical otolaryngology: official journal of ENT-UK; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
  • J F Thong · C Woods · S Lo · J Knight

    No preview · Article · Nov 2007 · Clinical otolaryngology: official journal of ENT-UK; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
  • J F Thong · S Lo · N Eze · V Moore-Gillon

    No preview · Article · Nov 2007 · Clinical otolaryngology: official journal of ENT-UK; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery
  • J F Thong · S Lo · R Houghton · V Moore-Gillon
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    ABSTRACT: To examine the effects of oral diazepam on blood pressure and anxiety in patients with acute epistaxis. A prospective comparative study in an otorhinolaryngology tertiary referral centre. Patients with acute epistaxis requiring hospital admission. Oral diazepam. Anxiety and blood pressure levels. 32 patients received diazepam and 45 did not (control). On average, patients were hypertensive on admission (mean [standard deviation (SD)] systolic blood pressure diazepam group=157 mmHg [26], control=152 mmHg [23]; diastolic blood pressure diazepam group=87 mmHg [16], control=87 mmHg [18]). Both groups showed significant blood pressure reduction on discharge (p<0.0001) but the difference in mean blood pressure reduction between the two groups was insignificant (systolic blood pressure p=0.16, 95% confidence interval [CI]=-5 to +19 mmHg; diastolic blood pressure p=0.43, 95% CI=-8 to +10 mmHg). Anxiety was significantly lower on discharge (p<0.0001) but the difference in mean fall in anxiety scores between the two groups was insignificant (p=0.08, 95% CI=0 to +2). There was no significant correlation between total diazepam and changes in blood pressure (systolic blood pressure p=0.32; diastolic blood pressure p=0.65) or anxiety (p=0.73), nor between blood pressure and anxiety on admission (systolic blood pressure p=0.45; diastolic blood pressure p=0.72). Elevated blood pressure and anxiety in acute epistaxis patients reduced on epistaxis resolution irrespective of oral diazepam use. The elevated blood pressure does not appear to be directly related to anxiety.
    No preview · Article · Feb 2007 · The Journal of Laryngology & Otology

  • No preview · Article · Nov 2006 · Clinical otolaryngology: official journal of ENT-UK; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery

Publication Stats

48 Citations
26.63 Total Impact Points

Institutions

  • 2013-2014
    • Singapore General Hospital
      Tumasik, Singapore
  • 2010-2013
    • Khoo Teck Puat Hospital
      Tumasik, Singapore
  • 2007-2011
    • Tan Tock Seng Hospital
      Tumasik, Singapore
  • 2009
    • Changi General Hospital
      Tumasik, Singapore
  • 2006-2008
    • St George's, University of London
      • Medical School
      Londinium, England, United Kingdom