Displaying publications 1 - 20 of 43 in total

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  1. McMahon JD, Crowther J, Taylor WM, Wong LS, Paterson T, Devine J, et al.
    Br J Oral Maxillofac Surg, 2015 Nov;53(9):814-9.
    PMID: 26212419 DOI: 10.1016/j.bjoms.2015.06.006
    We describe the technical aspects and report our clinical experience of a surgical approach to the infratemporal fossa that aims to reduce local recurrence after operations for cancer of the posterior maxilla. We tested the technique by operating on 3 cadavers and then used the approach in 16 patients who had posterolateral maxillectomy for disease that arose on the maxillary alveolus or junction of the hard and soft palate (maxillary group), and in 19 who had resection of the masticatory compartment and central skull base for advanced sinonasal cancer (sinonasal group). Early proximal ligation of the maxillary artery was achieved in all but one of the 35 patients. Access to the infratemporal fossa enabled division of the pterygoid muscles and pterygoid processes under direct vision in all cases. No patient in the maxillary group had local recurrence at median follow up of 36 months. Four patients (21%) in the sinonasal group had local recurrence at median follow up of 27 months. Secondary haemorrhage from the cavernous segment of the internal carotid artery resulted in the only perioperative death. The anterolateral corridor approach enables controlled resection of tumours that extend into the masticatory compartment.
    Matched MeSH terms: Skull Base/surgery*; Skull Base Neoplasms
  2. Brand Y, Narayanan V, Prepageran N, Waran V
    World Neurosurg, 2016 Jun;90:492-495.
    PMID: 26987637 DOI: 10.1016/j.wneu.2016.03.018
    OBJECTIVE: To share our experience with a new delivery system for the flowable hemostatic matrix, FloSeal, in endoscopic and microscopic skull base surgery.

    METHODS: We prospectively analyzed the use of FloSeal with a hemostatic delivery system in transnasal endoscopic and microscopic skull base procedures performed at the authors' institution from January 1, 2015, to June 30, 2015. In all cases the number of aliquots was noted for the entire operation, and the total number of FloSeal ampules of 5 mL was also recorded.

    RESULTS: Our device allowed controlled application of small amounts (0.5-1 mL) of FloSeal to the site of bleeding. This controlled application resulted not only in increased visibility during its application, but it also reduced the amount of FloSeal required during the procedure. We were able to use 5-10 applications per 5-mL ampule of FloSeal within an individual procedure. No procedure required more than one 5-mL ampule of FloSeal. Therefore, the use of our device results in a reduction of costs. Prior to the use of our device, we were often only able to use 1 vial of 5 ml of material for 1 or 2 applications, especially in transnasal endoscopic procedures when working along a deep corridor.

    CONCLUSIONS: Our results indicate that our delivery device of FlowSeal can effectively control hemostasis by applying small amounts of FlowSeal to the site of bleeding. This results in increased visibility during hemostasis and a reduction of cost.

    Matched MeSH terms: Skull Base
  3. Kahairi A, Ahmad RL, Wan Ishlah L, Norra H
    Med J Malaysia, 2012 Oct;67(5):526-8.
    PMID: 23770873
    We report a case of an inflammatory pseudotumour (IP) involving the floor of the skull base, which demonstrated aggressive behavior both clinically and radiologically. In this case, the diagnosis was established by clinical presentation, magnetic resonance imaging (MRI), histopathological examination (HPE) and the dramatic response towards high dose steroid therapy. The clinical features improved with oral cyclophosphamide in combination with oral steroid, which were given for a period of three months.
    Matched MeSH terms: Skull Base*
  4. Bhattacharjee A, Chakraborty A, Purkaystha P
    J Laryngol Otol, 2008 Mar;122(3):321-3.
    PMID: 17666141
    Frontoethmoidal encephalomeningocoele is a rare congenital disease in which an intracranial mass protrudes through a midline defect from the anterior cranial fossa into the facial skeleton. The condition affects patients in South East Asian countries, such as Thailand, Burma, Malaysia and Indonesia, with frequency of 1 in 5000. The pathogenesis of encephalocoeles may be regarded as a 'late' neurulation defect during the fourth gestational week. We present a case of frontoethmoidal encephalomeningocoele with corpus callosal agenesis and colpocephaly; this may well be the first report of this combination. The patient had a bulging mass in the middle frontonasal area, with broadening of the nasal bridge and hypertelorism. Computed tomography scans delineated the skull defect and associated brain anomalies. A one-stage, combined transfacial-transcranial approach, correctional procedure was performed. We present here a discussion of the findings, with special reference to the condition's pathogenesis, morphological classification and evolving surgical treatments. Early diagnosis and referral, involving multidisciplinary teamwork, are of paramount importance because of the distorting influence of the extruding mass on facial growth.
    Matched MeSH terms: Skull Base*
  5. Singam P, Thanabalan J, Mohammed Z
    Biomed Imaging Interv J, 2011 01 01;7(1):e3.
    PMID: 21655112 MyJurnal DOI: 10.2349/biij.7.1.e3
    Traumatic intractable epistaxis following fractures of the facial and base of skull rarely may be life-threatening. Common sites of injury are the internal carotid and maxillary artery. When conventional methods of arresting haemorrhage fail, the choices are then an open arterial ligation or superselective embolisation. This paper presents a patient with life-threatening epistaxis from a Le Fort type II fracture. Angiography revealed a maxillary artery injury in which superselective embolisation was performed and the haemorrhage was successfully arrested. A literature review of this technique is discussed, including its advantages and the relationship of the internal maxillary artery to facial fractures.
    Matched MeSH terms: Skull Base
  6. Abdullah J, Rushdan A, Hamzah M, Ariff AR, Rani A
    Ann. Transplant., 1999;4(3-4):28-31.
    PMID: 10853777
    Four patients underwent reconstruction of anterior cranial fossa of skull defects between November 1997 and January 1998. All of them had traumatic anterior cranial fossa defect and were reconstructed with lyophilised bovine cortical bone graft. There was no cerebrospinal fluid leakage, meningitis, extradural abscess or other infections. This study demonstrates that the use of bovine bone graft in the reconstruction of anterior base defects is safe.
    Matched MeSH terms: Skull Base/injuries; Skull Base/radiography; Skull Base/surgery*
  7. Tan LY, Tan AP
    Med J Malaysia, 2018 12;73(6):439-440.
    PMID: 30647227
    Meningiomas are neoplasm arising from meningoepithelial cells, most commonly in the fifth to sixth decade of life. Meningiomas are rare in paediatric population, accounting for 0.4-4.1% of all paediatric tumours and less than 3% of paediatric brain tumours. However, meningiomas represent the most common dural based tumours in children. We describe a rare case of paediatric fibroblastic meningioma within the left middle cranial fossa masquerading as an intra-axial mass lesion. Our discussion will be centred on atypical features of paediatric meningiomas and differential diagnosis of extra-axial mass lesion in the paediatric population.
    Matched MeSH terms: Skull Base Neoplasms/diagnosis*
  8. Zahedi FD, Subramaniam S, Kasemsiri P, Periasamy C, Abdullah B
    Int J Environ Res Public Health, 2022 Oct 25;19(21).
    PMID: 36360727 DOI: 10.3390/ijerph192113847
    BACKGROUND: Cerebrospinal fluid (CSF) rhinorrhea requires proper management to avoid disastrous consequences. The objectives of this study were to ascertain the patient characteristics, etiologies, sites of defect, skull base configurations, methods of investigation, and management outcomes of CSF rhinorrhea.

    METHODS: A retrospective study was performed over 4 years involving three surgeons from Malaysia, Singapore, and Thailand. Hospital records were reviewed to determine the patients' characteristics, the causes and sites of leaks, methods of investigation, skull base configurations, choices of treatment, and outcomes.

    RESULTS: A total of 15 cases (7 traumatic and 8 non-traumatic) were included. Imaging was performed in all cases. The most common site of leakage was the cribriform plate (9/15 cases). The mean ± SD of the Keros heights were 4.43 ± 1.66 (right) and 4.21 ± 1.76 mm (left). Type II Keros was the most common (60%). The mean ± SD angles of the cribriform plate slope were 51.91 ± 13.43 degrees (right) and 63.54 ± 12.64 degrees (left). A class II Gera configuration was the most common (80%). All except two patients were treated with endonasal endoscopic surgical repair, with a success rate of 92.3%. A multilayered repair technique was used in all patients except one. The mean ± SD postoperative hospital stay was 9.07 ± 6.17 days.

    CONCLUSIONS: Non-traumatic CSF rhinorrhea outnumbered traumatic CSF rhinorrhea, with the most common site of leak at the cribriform plate. Imaging plays an important role in investigation, and Gera classification appears to be better than Keros classification for evaluating risk. Both conservative and surgical repairs are practiced with successful outcomes. Endonasal endoscopic CSF leak repair is the mainstay treatment.

    Matched MeSH terms: Skull Base/surgery
  9. Sakandar G, Haron J, Mohamad A, Mohamad I, Ramli RR
    Allergy Rhinol (Providence), 2019 09 09;10:2152656719874775.
    PMID: 31534825 DOI: 10.1177/2152656719874775
    Surgery for sinuses has evolved with the advancement of instruments and modification in techniques. Endoscopes have expanded the surgical roles for lesions in the nose and para-nasal sinuses with reduced rate of complications and cosmetic side effects. Nevertheless sinus surgery in pediatrics patients has its own challenges. Pre-operative imaging is of paramount important especially when embarking on skull base procedures. The differences between adult and pediatric anatomy need to be further studied.
    Matched MeSH terms: Skull Base
  10. Abdullah SN, Abdullah B
    Cureus, 2020 May 15;12(5):e8132.
    PMID: 32550052 DOI: 10.7759/cureus.8132
    During endoscopic sinus and skull base surgeries, surgical landmarks are routinely used to guide surgeons navigating in the narrow corridor of the sinonasal region. Risk of complications is higher in difficult cases when there is excessive bleeding or alteration of the normal anatomical landmarks by tumour. An additional landmark is advantageous to prevent complications and serves as a guide. We present a case of supreme turbinate found incidentally during an endoscopic transsphenoidal surgery. Not much is known about the role of supreme turbinate. When it is present, the sphenoid ostium is located medial to its posteroinferior attachment, and behind its vertical part. Hence, the identification of this structure serves as an additional landmark besides superior turbinate during surgery.
    Matched MeSH terms: Skull Base
  11. Hariri F, Malek RA, Abdullah NA, Hassan SF
    Int J Oral Maxillofac Surg, 2024 Apr;53(4):293-300.
    PMID: 37739816 DOI: 10.1016/j.ijom.2023.08.009
    Midface hypoplasia in syndromic craniosynostosis (SC) may lead to serious respiratory issues. The aim of this study was to analyse the morphometric correlation between midface and cranial base parameters in paediatric SC patients in order to formulate predictive regression models. The computed tomography scans of 18 SC patients and 20 control were imported into Materialise Mimics Medical version 21.0 software for the measurement of multiple craniofacial landmarks and correlation analysis. The results showed a strong correlation of anterior cranial base (SN), posterior cranial base (SBa), and total cranial base (NBa) (r = 0.935) to maxilla length and width (ZMR-ZML) (r = 0.864). The model of NBa = - 1.554 + 1.021(SN) + 0.753(SBa) with R2 = 0.875 is proposed to demonstrate the development of the cranial base that causes a certain degree of midface hypoplasia in SC patients. The formula is supported using a prediction model of ZMR-ZML = 5.762 + 0.920(NBa), with R2 = 0.746. The mean absolute difference and standard deviation between the predicted and true NBa and ZMR-ZML were 2.08 ± 1.50 mm and 3.11 ± 2.32 mm, respectively. The skeletal growth estimation models provide valuable foundation for further analysis and potential clinical application.
    Matched MeSH terms: Skull Base
  12. Narayanan V, Narayanan P, Rajagopalan R, Karuppiah R, Rahman ZA, Wormald PJ, et al.
    Eur Arch Otorhinolaryngol, 2015 Mar;272(3):753-7.
    PMID: 25294050 DOI: 10.1007/s00405-014-3300-3
    Endoscopic base of skull surgery has been growing in acceptance in the recent past due to improvements in visualisation and micro instrumentation as well as the surgical maturing of early endoscopic skull base practitioners. Unfortunately, these demanding procedures have a steep learning curve. A physical simulation that is able to reproduce the complex anatomy of the anterior skull base provides very useful means of learning the necessary skills in a safe and effective environment. This paper aims to assess the ease of learning endoscopic skull base exposure and drilling techniques using an anatomically accurate physical model with a pre-existing pathology (i.e., basilar invagination) created from actual patient data. Five models of a patient with platy-basia and basilar invagination were created from the original MRI and CT imaging data of a patient. The models were used as part of a training workshop for ENT surgeons with varying degrees of experience in endoscopic base of skull surgery, from trainees to experienced consultants. The surgeons were given a list of key steps to achieve in exposing and drilling the skull base using the simulation model. They were then asked to list the level of difficulty of learning these steps using the model. The participants found the models suitable for learning registration, navigation and skull base drilling techniques. All participants also found the deep structures to be accurately represented spatially as confirmed by the navigation system. These models allow structured simulation to be conducted in a workshop environment where surgeons and trainees can practice to perform complex procedures in a controlled fashion under the supervision of experts.
    Matched MeSH terms: Skull Base/anatomy & histology*; Skull Base/surgery*
  13. Sivalingam S, Konishi M, Shin SH, Lope Ahmed RA, Piazza P, Sanna M
    Audiol. Neurootol., 2012;17(4):243-55.
    PMID: 22584244 DOI: 10.1159/000338418
    Tympanojugular paragangliomas (TJPs) with intradural extension can be successfully treated by a single or staged procedure with low surgical morbidity.
    Matched MeSH terms: Skull Base Neoplasms/classification; Skull Base Neoplasms/surgery*
  14. Banabilh SM, Suzina AH, Dinsuhaimi S, Singh GD
    Aust Orthod J, 2007 Nov;23(2):89-95.
    PMID: 18200785
    Obstructive sleep apnoea (OSA) has been described as a public health problem comparable to smoking in its impacts upon society.
    Matched MeSH terms: Skull Base/pathology*; Skull Base/radiography
  15. Wong DKC, Muhamad NS, Sobri SS, Amin WAM, Yusof Z
    Med J Malaysia, 2019 04;74(2):85-86.
    PMID: 31079134
    Metastasising pleomorphic adenoma is rare and may occur years after surgical excision of a pleomorphic adenoma (PA). We present a 61-year-old woman with a right infratemporal PA with metastases to the cervical lymph nodes after 30 years following a total parotidectomy. She was treated successfully with a resection of the tumour with combined neck and mandibulotomy approach along with postoperative radiotherapy given subsequently.
    Matched MeSH terms: Skull Base Neoplasms/diagnosis*; Skull Base Neoplasms/etiology; Skull Base Neoplasms/pathology; Skull Base Neoplasms/therapy
  16. Lope Ahmad RA, Sivalingam S, Konishi M, De Donato G, Sanna M
    Head Neck, 2013 Apr;35(4):527-34.
    PMID: 22544660 DOI: 10.1002/hed.22987
    The purpose of this study was to identify the factors that may influence the management outcome in patients with jugular paragangliomas.
    Matched MeSH terms: Skull Base Neoplasms/pathology; Skull Base Neoplasms/surgery*
  17. Shahrjerdi B, Angoyaroko A, Abdullah B
    Acta Inform Med, 2012 Dec;20(4):261-3.
    PMID: 23378696 DOI: 10.5455/aim.2012.20.261-263
    Sinonasal tumors may grow to considerable size before presentation and in view of their relation to the base of skull, orbit, cranial nerves and vital vessels; a precise diagnostic and therapeutic planning is needed to achieve the optimal results. We report a case who presented with unilateral nasal blockage, rhinorrhea and episodes of epistaxis which diagnosed as sinonasal inverted papilloma and angiofibroma.
    Matched MeSH terms: Skull Base
  18. Sinthubua A, Theera-Umpon N, Auephanwiriyakul S, Ruengdit S, Das S, Mahakkanukrauh P
    Clin Ter, 2016 Mar-Apr;167(2):33-7.
    PMID: 27212570 DOI: 10.7417/CT.2016.1918
    Age estimation is one of the major components of forensic identification. Cranial suture closure has long been used as indicator for age estimation. Maxillary sutures have been less studied for estimation of age at death because they vary in their timing of closure with age. The purpose of this study was to estimate age by examining 190 Thai skulls with age ranging between 15-93 years from Forensic Osteology Research Center, Faculty of Medicine, and Chiang Mai University. Four parts of maxillary suture (incisive, anterior, transverse, and posterior sutures) were investigated the suture obliteration of each suture by computerizing from photograph. The suture were measured by pixel counting.The prediction model which based on the support vector machine (SVM) for regression or support vector regression (SVR) was utilized for data analysis. The results showed high correlation (R2 = 0.9086) between the predicted age and actual age. Plot between actual age group and predicted age in seven groups also revealed high correlation (R2 = 0.9434). These can be implied that we are able to use this SVR model to predict age at death using maxillary suture information.The interesting issue is to further apply this model in more cases to ensure the generalization of the finding. This study is the first attempt to estimate age at death using a new method based on novel analysis which considers a characteristic of relationship between maxillary suture closures with age that are not in linear form. The present study may contribute as a basis knowledge and method for further study of age estimation in archaeological and forensic anthropological contexts, especially when only skull or base of skull are found.
    Matched MeSH terms: Skull Base
  19. Saifuddin MSAH, Ng CY, Abdullah MS
    Am J Case Rep, 2021 Jun 05;22:e930384.
    PMID: 34089579 DOI: 10.12659/AJCR.930384
    BACKGROUND Ewing sarcoma and primitive neuroectodermal tumor are rare tumors grouped under the spectrum of the Ewing sarcoma family of tumors. These highly malignant tumors involve the bones and commonly occur in children. Ewing sarcoma of the skull bone accounts for only 1% of all Ewing sarcomas, with primary skull base Ewing sarcoma occurring in less than 1% of cases. We present a case of skull base Ewing sarcoma with complete symptom recovery and near-total radiological resolution. CASE REPORT A 4-year-old girl initially presented with a 2-month history of vomiting, poor oral intake, weight loss, and gradual visual deterioration followed by acute symptoms of fever, breathing difficulties, and seizure. Initial computed tomography and magnetic resonance imaging of the brain displayed a large sinonasal mass with extensive regional infiltration and bony destruction and no evidence of distant metastasis. A transnasal biopsy was taken. The histopathology result revealed features of skull base Ewing sarcoma. The child was given a combination of radiotherapy and chemotherapy, to which she responded well, with a minimal residual tumor. CONCLUSIONS Skull base Ewing sarcoma is a rare entity, presenting a challenge to the reporting radiologists. Differential diagnoses of esthesioneuroblastoma, olfactory neuroepithelioma, and, more commonly, sinonasal carcinoma can be misleading since they have similar radiological appearances to skull base Ewing sarcoma, which differs in treatment regimen and prognosis. Therefore, a combination of histopathological appearance, radiographic findings, and clinical correlation is important to determine the correct diagnosis, establish the appropriate treatment regime, and improve the patient's survival.
    Matched MeSH terms: Skull Base
  20. Ng BHK, Tang IP, Narayanan P, Raman R, Carrau RL
    J Laryngol Otol, 2019 Dec;133(12):1059-1063.
    PMID: 31774052 DOI: 10.1017/S0022215119002329
    BACKGROUND: Nasal lavage with mupirocin has the potential to reduce sinonasal morbidity in endoscopic endonasal approaches for skull base surgery.

    OBJECTIVE: To evaluate the effects of nasal lavage with and without mupirocin after endoscopic endonasal skull base surgery.

    METHODS: A pilot randomised, controlled trial was conducted on 20 adult patients who had undergone endoscopic endonasal approaches for skull base lesions. These patients were randomly assigned to cohorts using nasal lavages with mupirocin or without mupirocin. Patients were assessed in the out-patient clinic, one week and one month after surgery, using the 22-item Sino-Nasal Outcome Test questionnaire and nasal endoscopy.

    RESULTS: Patients in the mupirocin nasal lavage group had lower nasal endoscopy scores post-operatively, and a statistically significant larger difference in nasal endoscopy scores at one month compared to one week. The mupirocin nasal lavage group also showed better Sino-Nasal Outcome Test scores at one month compared to the group without mupirocin.

    CONCLUSION: Nasal lavage with mupirocin seems to yield better outcomes regarding patients' symptoms and endoscopic findings.

    Matched MeSH terms: Skull Base/surgery; Skull Base Neoplasms/surgery*
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