Displaying publications 41 - 60 of 284 in total

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  1. Mallina S, Harvinder S, Rosalind S, Philip R, Gurdeep S, Anil S
    Med J Malaysia, 2006 Aug;61(3):320-2.
    PMID: 17240583 MyJurnal
    Eight patients with pituitary tumors were operated via the transseptal transsphenoidal approach from April to November 2004 at Hospital Ipoh. Seven patients presented with visual disturbances while three also had endocrine abnormalities. The post-operative follow-up period was between six months to a year. There was no mortality in this series. There were no complications related to the approach i.e. nasal or septal related. All patients with visual impairment showed improvement. Only one patient had hormonal irregularities. The endoscopic assisted transseptal approach to the sphenoid sinus for pituitary surgery was found to be easy and without sinonasal or labial complications often found with the sublabial approach.
    Matched MeSH terms: Endoscopy*
  2. Ahmad R, Norie A
    Med J Malaysia, 2006 Dec;61(5):644-6.
    PMID: 17623972 MyJurnal
    Intranasal haemangioma is quite rare. This tumor may be confused with other intranasal vascular tumor such as juvenile nasopharyngeal angiofibroma (JNA), glomus tumors as well as other tumor such as angiosarcoma and leiomyoma. Juvenile nasopharyngeal angiofibroma is the most common vascular tumor encountered in nasal cavity. A definitive histology diagnosis pre-operatively is difficult to be obtained as the biopsy may lead into severe uncontrolled bleeding. The final diagnosis very much depends on histology after the tumor excision. Complete surgical resection of the tumor is the standard approach. In this report we describe our surgical management in approaching intranasal haemangioma endoscopically and this pathology can be considered as one of differential diagnosis for unilateral nasal mass.
    Matched MeSH terms: Endoscopy*
  3. Hilmi I, Goh KL
    Aliment Pharmacol Ther, 2013 Jan;37(1):156-7; discussion 157-8.
    PMID: 23205475 DOI: 10.1111/apt.12122
    Matched MeSH terms: Endoscopy, Gastrointestinal/methods*
  4. Prepageran N, Gopala K, Subramaniam KN
    Med J Malaysia, 2002 Dec;57(4):493-5.
    PMID: 12733177
    We describe two cases of nasal inverted papilloma who had different management modalities. Although both were essentially of the same pathology, one underwent endoscopic excision while the other was treated with the more popular lateral rhinotomy and medial maxillectomy. We wish to highlight the different modalities of treatment available for inverted papilloma and a review of published results.
    Matched MeSH terms: Endoscopy*
  5. Tandon RK
    J Gastroenterol Hepatol, 1991 1 1;6(1):37-9.
    PMID: 1883975
    Matched MeSH terms: Endoscopy, Digestive System*
  6. Abdullah B, Lim EH, Husain S, Snidvongs K, Wang Y
    Surg Radiol Anat, 2019 May;41(5):491-499.
    PMID: 30542930 DOI: 10.1007/s00276-018-2165-3
    PURPOSE: Anterior ethmoidal artery (AEA) is at risk of injury in endoscopic sinus surgery due to its location. The aim of this review was to assess the anatomical variations of AEA and their significance.

    METHODS: A literature search was performed on PUBMED, SCOPUS AND EMBASE. The following keywords were used: ethmoidal artery; anterior ethmoidal artery; anterior ethmoidal canal; ethmoid sinus; ethmoid roof; skull base. The search was conducted over a period of 6 months between October 2016 and April 2017.

    RESULTS: 105 articles were retrieved. 76 articles which were either case reports or unrelated topics were excluded. Out of the 29 full text articles retrieved, 16 articles were selected; 3 were cadaveric dissection, 5 combined cadaveric dissection and computed tomography (CT) and the rest were of CT studies. All studies were of level III evidence and a total of 1985 arteries were studied. Its position at the skull base was influenced by the presence of supraorbital ethmoid cell (SOEC) and length of the lateral lamella of cribriform plate (LLCP). Inter population morphological variations contribute to the anatomical variations.

    CONCLUSIONS: The average diameter of AEA was 0.80 mm and the intranasal length was 5.82 mm. 79.2% was found between the second and third lamellae, 12.0% in the third lamella, 6% posterior to third lamella and 1.2% in the second lamella. Extra precaution should be taken in the presence of a well-pneumatized SOEC and a long LLCP as AEA tends to run freely below skull base.

    Matched MeSH terms: Endoscopy*
  7. Abdullah B, Rasid NSA, Lazim NM, Volgger V, Betz CS, Mohammad ZW, et al.
    Sci Rep, 2020 04 24;10(1):6941.
    PMID: 32332848 DOI: 10.1038/s41598-020-64011-6
    The diagnostic procedure for upper aerodigestive tract (UADT) tumours is by white light endoscopy (WLE) combined with biopsy. However, WLE has difficulty identifying minute epithelial changes which hinders early diagnosis. Storz Professional Image Enhancement System (SPIES) is designed to enhance the visualization of microvasculature on the mucosal surface and detect any epithelial changes. In this study, we aimed to evaluate the use of Ni endoscopic classification with SPIES endoscopy in the detection of UADT tumours. Fifty-nine patients with suspected UADT tumours underwent WLE followed by SPIES endoscopy. All the tumours were biopsied and sent for histopathological examination (HPE). The kappa index (κ) was used to evaluate the agreement between the methods. The level of agreement between SPIES using Ni classification and HPE showed almost perfect agreement as compared to moderate agreement between WLE and HPE. The sensitivity and specificity for WLE and HPE were 77.5% and 84.2% respectively with positive predictive value (PPV) of 91.2% and negative predictive value (NPV) of 64%. The sensitivity and specificity for SPIES endoscopy using Ni classification and HPE were 97.5% and 94.7% respectively with PPV of 97.5% and NPV of 94.7%. SPIES endoscopy using Ni classification is a valid tool for earlier tumour detection.
    Matched MeSH terms: Endoscopy*
  8. Wong E, Hamizan AW, Alvarado R, Orgain CA, Kalish L, Sacks R, et al.
    Am J Otolaryngol, 2018 06 22;39(5):570-574.
    PMID: 29961655 DOI: 10.1016/j.amjoto.2018.06.019
    PURPOSE: Middle turbinate head edema has recently been found to have high specificity for diagnosis of inhalant allergy. However, subtle mucosal edema can be difficult to appreciate under white light endoscopy. Narrow band imaging (NBI) has the potential to demonstrate edema by identifying reduced mucosal vascularity and improve sensitivity for the detection of mucosal edema. Narrow band imaging was assessed to determine its utility in objectifying mucosal edema.

    MEATERIALS AND METHODS: A cross-sectional diagnostic study was performed on patients with edematous mucosa of the middle turbinate head. Under traditional white light endoscopy, areas of edematous mucosa were identified. Using NBI, these areas were compared to areas of normal mucosa on the middle turbinate head. NBI images of these same areas were then converted to grey scale and a vascularity index was created by pixel analysis and brightness in Fiji Image J software (Wisconsin, US).

    RESULTS: Thirty-three middle turbinates were assessed (age 42.4 ± 12.5, 42.4% female). NBI discriminated between areas identified under white light endoscopy as edematous and normal (158.2 ± 48.4 v 96.9 ± 32.7 p 

    Matched MeSH terms: Endoscopy*
  9. Murdani A, Kumar A, Chiu HM, Goh KL, Jang BI, Khor CJ, et al.
    Dig Endosc, 2017 Jan;29(1):3-15.
    PMID: 27696514 DOI: 10.1111/den.12745
    The aim of this position statement is to reinforce the key points of hygiene in digestive endoscopy. The present article details the minimum hygiene requirements for reprocessing of endoscopes and endoscopic devices, regardless of the reprocessing method (automated washer-disinfector or manual cleaning) and the endoscopy setting (endoscopy suite, operating room, elective or emergency procedures). These minimum requirements are mandatory for patient safety. Both advanced diagnostic and therapeutic endoscopies should be carried out in an environment that is safe for patients and staff. Particular attention is given to contaminants. Procedural errors in decontamination, defective equipment, and failure to follow disinfection guidelines are major factors contributing to transmission of infection during endoscopy. Other important risk factors include inadequate cleaning, use of older endoscopes with surface and working channel irregularities, and contamination of water bottles or irrigating solutions. Infections by multidrug-resistant organisms have become an increasing problem in health-care systems worldwide. Since 2010, outbreaks of multidrug-resistant bacteria associated with endoscopic retrograde cholangiopancreatography have been reported from the USA, France, Germany, and The Netherlands. In many endoscopy units in Asia and the Middle East, reprocessing procedures have lagged behind those of Western countries for cultural reasons or lack of financial resources. This inconsistency in standards is now being addressed, and the World Endoscopy Organization has prepared this position statement to highlight key points for quality assurance in any endoscopy unit in any country.
    Matched MeSH terms: Endoscopy, Digestive System/standards*
  10. Saniasiaya J, Abdullah B, Husain S, Wang Y, Wan Mohammad Z
    Am J Rhinol Allergy, 2017 Sep 01;31(5):328-333.
    PMID: 28859711 DOI: 10.2500/ajra.2017.31.4464
    BACKGROUND: Epiphora secondary to nasolacrimal duct obstruction is common in the pediatric age group. The mainstay treatment among these young patients has been conservative. Once epiphora becomes recalcitrant, however, an external or an endonasal approach is considered.

    OBJECTIVE: Endoscopic dacryocystorhinostomy (EDCR) entails creating an opening from the lacrimal sac directly into the nasal cavity to counteract nasolacrimal duct obstruction. We reviewed the literature to determine the effectiveness and the safety of primary EDCR to treat pediatric nasolacrimal duct obstruction.

    METHOD: A literature search was conducted by using a number of medical literature data bases for the period from 1995 to 2016. The following search words were used either individually or in combination: epiphora, nasolacrimal duct obstruction, endoscopic dacryocystorhinostomy, powered endoscopic dacryocystorhinostomy, laser-assisted endoscopic dacryocystorhinostomy, children, congenital, acquired, presaccal obstruction, and postsaccal obstruction. In addition, a few articles were identified based on the experience and information provided by the senior authors (B.A., S.H., D.Y.W.). The search was conducted over a 1-month period (January 2017). Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and the Cochrane Handbook for Systematic Reviews of Interventions were followed when possible.

    RESULTS: Only 10 original clinical research articles were selected based on our objectives and selection criteria. All the studies were at level of evidence III: nonrandomized and noncomparative prospective or retrospective case series. Altogether, 313 patients with ages that ranged from 4 months to 18 years were enrolled. A total of 352 EDCRs were performed that were either single sided (n = 313) or bilateral (n = 39). The most common causes of the obstruction were classified as congenital, followed by idiopathic, and then acquired. A meta-analysis was not performed because of the heterogeneity of the patient groups and variability of the methods used to measure outcomes.

    CONCLUSION: Analysis of the results indicated that EDCR was an effective, safe therapeutic approach to treating nasolacrimal duct obstruction in pediatric patients. It should be considered as an alternative procedure to external dacryocystorhinostomy after a failed conservative treatment.

    Matched MeSH terms: Endoscopy/methods*
  11. Basar MR, Ahmad MY, Cho J, Ibrahim F
    Sensors (Basel), 2014 Jun 19;14(6):10929-51.
    PMID: 24949645 DOI: 10.3390/s140610929
    Wireless capsule endoscopy (WCE) is a promising technology for direct diagnosis of the entire small bowel to detect lethal diseases, including cancer and obscure gastrointestinal bleeding (OGIB). To improve the quality of diagnosis, some vital specifications of WCE such as image resolution, frame rate and working time need to be improved. Additionally, future multi-functioning robotic capsule endoscopy (RCE) units may utilize advanced features such as active system control over capsule motion, drug delivery systems, semi-surgical tools and biopsy. However, the inclusion of the above advanced features demands additional power that make conventional power source methods impractical. In this regards, wireless power transmission (WPT) system has received attention among researchers to overcome this problem. Systematic reviews on techniques of using WPT for WCE are limited, especially when involving the recent technological advancements. This paper aims to fill that gap by providing a systematic review with emphasis on the aspects related to the amount of transmitted power, the power transmission efficiency, the system stability and patient safety. It is noted that, thus far the development of WPT system for this WCE application is still in initial stage and there is room for improvements, especially involving system efficiency, stability, and the patient safety aspects.
    Matched MeSH terms: Capsule Endoscopy/instrumentation*
  12. Alazzawi S, Shahrizal T, Prepageran N, Pailoor J
    Qatar Med J, 2014;2014(1):57-60.
    PMID: 25320694 DOI: 10.5339/qmj.2014.10
    Isolated sphenoid sinus lesions are an uncommon entity and present with non-specific symptoms. In this case report, the patient presented with a history of headaches for a duration of one month without sinonasal symptoms. A computed tomography scan showed a soft tissue mass occupying the sphenoid sinus. An endoscopic biopsy revealed fungal infection. Endoscopic wide sphenoidotomy with excision of the sphenoid sinus lesion was then performed however, the microbiological examination post-surgery did not show any fungal elements. Instead, Citrobacter species was implicated to be the cause of infection.
    Matched MeSH terms: Endoscopy
  13. Sharouny H, Narayanan P
    Iran Red Crescent Med J, 2015 Jan;17(1):e17104.
    PMID: 25763256 DOI: 10.5812/ircmj.17104
    INTRODUCTION: Frontal sinus mucoceles are the commonest among all paranasal mucoceles. With introduction of functional endoscopic sinus surgery, surgeons prefer endoscopic management of sinus mucoceles, but lesions that appear in the lateral part of the frontal sinus can be difficult to access and often need external approaches.

    CASE PRESENTATION: We described a lateral frontal sinus mucocele with intra-orbital extension, which was successfully managed by endoscopic sinus surgery.

    CONCLUSIONS: Endoscopic sinus surgery is the treatment of choice in most frontal sinus mucoceles including lateral frontal mucoceles.

    Matched MeSH terms: Endoscopy
  14. Revadi G, Philip R, Gurdeep S
    Med J Malaysia, 2010 Jun;65(2):143-5.
    PMID: 23756800 MyJurnal
    A total of 36 patients with suspected foreign body (FB) of the oesophagus who underwent rigid endoscopy under general anaesthesia (GA) from January 2005 to March 2007 were reviewed. The majority of the patients were working adults in the 3rd to 5th decade of life. There was no foreign body in 33.3% of the patients. Co-morbidities were present in 33.3%. Morbidity and mortality from the procedure included one aspiration pneumonia, one lateral pharyngeal wall tear and one death (8.3%). X-ray findings were negative or inconclusive in 11(45.8%) patients with a foreign body. The majority of patients, 85.7% required 2 to 3 days of admission of which 52.7% had no foreign bodies. The most common foreign body retrieved was fishbone accounting for 13 of the 24 foreign bodies detected.
    Matched MeSH terms: Endoscopy
  15. Naganthran K, Nazar R, Pop I
    Sci Rep, 2016;6:24632.
    PMID: 27091085 DOI: 10.1038/srep24632
    In this paper, the unsteady stagnation-point boundary layer flow and heat transfer of a special third grade fluid past a permeable stretching/shrinking sheet has been studied. Similarity transformation is used to transform the system of boundary layer equations which is in the form of partial differential equations into a system of ordinary differential equations. The system of similarity equations is then reduced to a system of first order differential equations and has been solved numerically by using the bvp4c function in Matlab. The numerical solutions for the skin friction coefficient and heat transfer coefficient as well as the velocity and temperature profiles are presented in the forms of tables and graphs. Dual solutions exist for both cases of stretching and shrinking sheet. Stability analysis is performed to determine which solution is stable and valid physically. Results from the stability analysis depict that the first solution (upper branch) is stable and physically realizable, while the second solution (lower branch) is unstable.
    Matched MeSH terms: Endoscopy
  16. Isayama H, Nakai Y, Rerknimitr R, Khor C, Lau J, Wang HP, et al.
    PMID: 27044023 DOI: 10.1111/jgh.13394
    Walled-off necrosis (WON) is a relatively new term for encapsulated necrotic tissue after severe acute pancreatitis. Various terminologies such as pseudocyst, necroma, pancreatic abscess and infected necrosis were previously used in the literature, resulting in confusion. The current and past terminologies must be reconciled to meaningfully interpret past data. Recently, endoscopic necrosectomy was introduced as a treatment option and is now preferred over surgical necrosectomy when the expertise is available. However, high-quality evidence is still lacking, and there is no standard management strategy for WON. The consensus meeting aimed to clarify the diagnostic criteria for WON and the role of endoscopic interventions in its management. In the Consensus Conference, 25 experts from 8 Asian countries took an active role and examined key clinical aspects of WON diagnosis and endoscopic management. Statements were crafted based on literature review and expert opinion, employing the modified Delphi method. All statements were substantiated by the level of evidence and the strength of the recommendation. We created 27 consensus statements for WON diagnosis and management, including details of endoscopic procedures. When there was not enough solid evidence to support the statements, this was clearly acknowledged to facilitate future research. Proposed management strategies were formulated and are illustrated using flow charts. These recommendations, which are based on the best current scientific evidence and expert opinion, will be useful for guiding endoscopic management of WON. Part 1 of this statement focused on the epidemiology, diagnosis and timing of intervention.
    Matched MeSH terms: Endoscopy
  17. Zhiqin W, Muhammad Nawawi KN, Raja Ali RA
    Endoscopy, 2020 08;52(8):704-705.
    PMID: 32722836 DOI: 10.1055/a-1168-6841
    Matched MeSH terms: Endoscopy, Gastrointestinal
  18. Lazarescu A, Chan WW, Gyawali CP, Lee YY, Xiao Y, Wu P
    Ann N Y Acad Sci, 2020 12;1481(1):108-116.
    PMID: 32875574 DOI: 10.1111/nyas.14453
    Esophageal dysphagia is a common symptom in adults. Fluoroscopic contrast studies, endoscopy, and esophageal manometry have been used in the diagnosis of esophageal dysphagia for many years. The diagnostic yield has been improved with new test protocols that highlight abnormal bolus transit in the esophagus and outflow obstruction, as well as new high-definition and high-resolution technical advances in equipment. Functional luminal impedance planimetry and the addition of impedance to high-resolution esophageal manometry have also allowed the assessment of new parameters to better understand esophageal structure and function. In this concise review, we describe the role and utility of various diagnostic modalities in the assessment of patients with esophageal dysphagia.
    Matched MeSH terms: Endoscopy
  19. Kasim, N.H.A., Abdullah, B.J.J., Mahadevan, J., Yunus, N.
    Ann Dent, 1998;5(1):-.
    MyJurnal
    The impaction of dental prostheses in either the airway or esophagus is an under-recognized problem which may result in severe morbidity or even mortality. The radio-opacity and the size of fixed and removable dental prostheses in an animal carcass was investigated. Prostheses were placed one at a time in the oro-laryngopharynx or in tho trachea and the esophagus. Lateral radiographs were taken for each prosthesis in site. The radio-opacity and size of the prostheses on the radiograph was graded. Most of the prostheses investigated were radio-opaque though the removable prostheses were more likely to be radiolucent and differ in size. In a symptomatic patient with a missing dental prosthesis, a negative chest or abdominal radiograph does not exclude impaction, inhalation or ingestion. Further evaluation with endoscopy or even computed tomography may be essential to reduce the possibility of severe morbidity or even mortality.
    Matched MeSH terms: Endoscopy
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