Displaying publications 1 - 20 of 65 in total

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  1. Nor AM, Mohamad AM, Elagili F, Hamdan A
    ANZ J Surg, 2021 12;91(12):2855-2856.
    PMID: 34913562 DOI: 10.1111/ans.17303
    Matched MeSH terms: Polyps*
  2. Goh KL, Quek KF, Yeo GT, Hilmi IN, Lee CK, Hasnida N, et al.
    Aliment Pharmacol Ther, 2005 Nov 1;22(9):859-64.
    PMID: 16225496
    Colorectal cancer is one of the most common forms of gastrointestinal cancer in the world today. In the Asia-Pacific area, it is the fastest emerging gastrointestinal cancer.
    Matched MeSH terms: Colonic Polyps/complications; Colonic Polyps/epidemiology
  3. Wong EHC, Chong AW
    Am J Otolaryngol, 2019 12 05;41(2):102367.
    PMID: 31831185 DOI: 10.1016/j.amjoto.2019.102367
    BACKGROUND: Many studies have looked at the effect of functional endoscopic sinus surgeries (FESS) on nasalance, nasal consonant and nasalized vowels. Only two studies investigated the effect of FESS on vocal sound quality and have not found statistically significant changes before and after operations. The aim of this study was to examine the short-term and long-term objective and subjective changes in the vocal quality of patients after FESS, comparing patients with and without nasal polyps.

    METHODS: Sixteen patients were recruited for voice analysis during pre-operative, within two weeks and at least three months post-operatively. Subjective questionnaire was used to assess perception of voice changes.

    RESULTS: There were no statistically significant changes in the acoustic parameters of patients with nasal polyposis. In patients with CRS without polyps, there was a statistically significant increase in fundamental frequency (F0) in nasal sound during early follow up. The changes in soft phonation index (SPI) values between the two groups were statistically significant during early follow-ups. Only patients with nasal polyposis perceived a subjective change in their voice post-operatively.

    CONCLUSIONS: Clinicians should inform all patients, especially voice professionals about the possible effects of endoscopic sinus surgeries on their voice quality.

    Matched MeSH terms: Nasal Polyps*
  4. Ho J, Hamizan AW, Alvarado R, Rimmer J, Sewell WA, Harvey RJ
    Am J Rhinol Allergy, 2018 Jul;32(4):252-257.
    PMID: 29862828 DOI: 10.1177/1945892418779451
    Background Eosinophilic chronic rhinosinusitis (eCRS) is linked with skewed T-helper 2 or immunoglobulin E (IgE)-mediated allergic responses, with differing diagnosis, prognosis, and management to non-eCRS. Objective The association between biomarkers and eCRS was investigated to assess the predictors of eCRS. Methods A cross-sectional study of adult patients with chronic rhinosinusitis (CRS) undergoing endoscopic sinus surgery was conducted. eCRS was defined by histopathological assessment showing >10 eosinophils/high-power field on sinus mucosal biopsy. Blood tests were performed preoperatively and assessed for a full blood count including eosinophils and a white cell count (WCC) as well as biochemical markers of inflammation and atopy including Immunoglobulin E (IgE), C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and ImmunoCAP testing for serum-specific IgE. Comparisons between eCRS and non-eCRS patients were performed. Results 345 patients (48.1% female, age 48.72 ± 15.06 years) were recruited, with 206 (59.7%) identified as eCRS, 41% with asthma and 47% CRS with nasal polyps. eCRS patients were more likely to have asthma ( P 0.24 × 109/L), eosinophil ratio (>4.27% of total WCC), and lower ESR when compared with non-eCRS.
    Matched MeSH terms: Nasal Polyps/complications; Nasal Polyps/diagnosis*
  5. Nazli Zainuddin, Irfan Mohamad, Khan, Shamim Ahmed
    MyJurnal
    Fungal ball is an extramucosal mycosis. The patient may present with facial pain, nasal blockage, purulent nasal discharge and cacosmia, the fungal ball being present unnoticed for years. Some patients do present as having other nasal problems and later on are found out to have a fungal ball incidentally. We present a case of 38 yearold man who was clinically diagnosed as having left antrochoanal polyp. Intraoperatively, a fungal ball was discovered in the left maxillary antrum.
    Matched MeSH terms: Nasal Polyps
  6. Wan Faiziah Wan Abdul Rahman, Nur Asyilla Che Jalil, Irfan Mohamad, Mohd Khairi Md Daud
    MyJurnal
    Hamartomatous polyps of the tonsil are very rare. They have been described using various terms such as a lymphangiomatous polyp, lymphangiectatic fibrous polyp, lipomatous polyp or pedunculated tonsil, thus the actual incidence is difficult to be quantified. We present a case of hamartomatous polyp of the palatine tonsil in a 30-year-old female presented with recurent tonsillitis. Histopathological examination of the resected tonsils showed features of chronic tonsilitis with incidental finding of hamartomatous polyp characterized by a polypoidal tissue covered by stratified squamous epithelium and composed of thin-walled blood vessels, lymphatic channels, fibrofatty tissues, seromucinous glands and striated muscle fibres. An unusual incidental histopathological finding of a rare condition has been discussed along with the review of literature.
    Matched MeSH terms: Polyps
  7. Mohamad S, Hamid SSA, Azlina A, Md Shukri N
    Asia Pac Allergy, 2019 Jul;9(3):e22.
    PMID: 31384577 DOI: 10.5415/apallergy.2019.9.e22
    Background: Chronic rhinosinusitis (CRS) is one of the most common and complex chronic inflammatory disease of sinonasal mucosa. Even though the pathogenesis of CRS is multifactorial and still unclear, the role of cytokines especially interleukin-1 (IL-1) is being investigated worldwide in different population because of varying results obtained.

    Objective: To study the association of IL-1 (A and B) gene polymorphisms with chronic rhinosinusitis with nasal polyp (CRSwNP) and without nasal polyp (CRSsNP), and other factors related.

    Methods: This is a case-controlled study which include a total of 138 subjects recruited from Otorhinolaryngology-Head and Neck Surgery clinic in Hospital Universiti Sains Malaysia. Genotyping of the IL-1A (+4845G, +4845T) and IL-1B (-511C, -511T) were performed with restriction fragment length polymorphism analysis.

    Results: There was a statistical significant association between IL-1B (-511C, -511T) polymorphism with CRSwNP and CRSsNP (p < 0.001). The CT genotype of IL-1B was markedly increased in CRSwNP subjects (52.2%). However, there was no significant association found between IL-1A (+4845G, +4845T) with CRSwNP and CRSsNP (p = 0.093). No association was found in factors related to CRS, which included asthma, atopy, allergy, aspirin sensitivity, and family history of nasal polyp (p value of 0.382, 0.382, 0.144, >0.95, and 0.254, respectively).

    Conclusion: This study indicates an association of IL-1B (-511C, -511T) polymorphism with CRSwNP and CRSsNP in our population, hence there is a possibility of IL-1B involvement in modulating pathogenesis of CRS. There was no significant association of IL-1A (+4845G, +4845T) polymorphism with CRSwNP and CRSsNP, and other factors related.

    Matched MeSH terms: Nasal Polyps
  8. Jabar MF, Prasannan S, Gul YA
    Asian J Surg, 2005 Jan;28(1):58-61.
    PMID: 15691802
    Adult intussusception is a rare entity that may present in the acute and subacute setting principally related to the degree of bowel obstruction. Preoperative diagnosis of this condition may be difficult. The intussusception is usually due to a definable intraluminal lesion, most probably neoplasia, unlike intussusception in children. We present the cases of two adult male patients with intussusception. The first presented with acute small-bowel obstruction secondary to a retrograde ileojejunal intussusception with a pseudopolyp as the lead point. This was possibly due to a retrograde ball-valve effect. The intussuscepting segment was resected. The second patient presented with unexplained chronic diarrhoea and an intussusception occurring within the caecum, as demonstrated at colonoscopy, with a terminal ileal pedunculated fibroid polyp as the lead point. A limited right hemicolectomy was performed. Both patients recovered uneventfully and have remained well. A brief literature review of adult intussusception complements the case reports, with an emphasis on the pathogenesis of inflammatory polyps and recommended surgical management.
    Matched MeSH terms: Intestinal Polyps/complications*
  9. Gendeh BS, Long YT, Misiran K
    Asian J Surg, 2004 Jan;27(1):22-5.
    PMID: 14719510
    Antrochoanal polyps are a rare clinical entity. In this review of patients treated between January 1996 and September 2002, there were 18 cases of antrochoanal polyps. The mean age of patients was 20 years. Nasal obstruction was the most common symptom (17 cases, 94%), followed by rhinorrhoea (44%), epistaxis (33%), postnasal drip (28%), and snoring (22%). Chronic sinus was the most common associated rhinological finding (50%). Various surgical approaches were used: endoscopic polypectomy and middle meatal antrostomy in seven patients (38.9%), endoscopic polypectomy and inferior meatal antrostomy in three patients (16.7%) and Caldwell-Luc surgery in one patient (5.6%). No complications were noted in patients treated with powered instrumentation, including the three patients in whom combined transcanine approaches were used. We concluded that powered endoscopic polypectomy was safe and effective. It allowed a more complete dissection and may diminish the chance of recurrence.
    Matched MeSH terms: Nasal Polyps/complications; Nasal Polyps/diagnosis; Nasal Polyps/surgery*
  10. Kong SS, Taib NA, Mahadeva S
    BMJ Case Rep, 2009;2009.
    PMID: 21686715 DOI: 10.1136/bcr.08.2008.0628
    Intussusception due to small intestinal polyps in Peutz-Jeghers syndrome represents a significant clinical challenge. Neither pure surgical nor endoscopic approaches alone are effective in the long-term management of this problem. We describe a combined approach using both surgery and small bowel endoscopy in the management of this condition, which resulted in both immediate and long-term success. Although not new, we believe this approach remains relevant despite recent technological advancements in this area.
    Matched MeSH terms: Intestinal Polyps
  11. Yoshida N, Naito Y, Murakami T, Ogiso K, Hirose R, Inada Y, et al.
    Case Rep Gastroenterol, 2018 01 19;12(1):27-31.
    PMID: 29515342 DOI: 10.1159/000486128
    Cold snare polypectomy (CSP) should be performed for benign lesions, though an accurate diagnosis is sometimes difficult with only white light observation. Irregular findings by narrow-band imaging (NBI) are useful for differentiating malignant lesions from benign lesions, and cases with this finding are not expected for CSP. We present a diminutive T1 cancer resected by CSP as a reflection case. A 68-year-old man underwent colonoscopy for surveillance after polypectomy. A reddish polyp 4 mm in size was detected at the rectum. White light observation showed no depression, but a slight, heterogeneous color change. NBI magnification showed irregular vessel and surface patterns. The polyp was diagnosed as intramucosal cancer. Even though cancerous lesions are regularly resected by endoscopic mucosal resection (EMR), this polyp was resected by CSP in daycare surgery because the patient requested not to be treated by EMR but by CSP, which needed an admission to our institution. The surgeon thought the polyp could be completely resected by CSP. It was thoroughly resected, and a histological examination showed submucosal cancer with a positive vertical margin. Additional surgical resection was not accepted by the patient, since he had received total gastrectomy for gastric cancer and a right hemicolectomy for colonic cancer in the past 7 years. He underwent follow-up colonoscopy 2 months after the CSP. Although there were no recurrent endoscopic findings, endoscopic submucosal dissection was performed to the scar area. The histological examination showed no residual tumor. In conclusion, CSP should only be adopted for benign cases, as cancerous lesions have a possibility for invading the submucosa, like in our case.
    Matched MeSH terms: Polyps
  12. Sarojini K, Ling KP, Teh WM, Ali H, Zunaina E
    Cureus, 2020 Sep 07;12(9):e10297.
    PMID: 33047087 DOI: 10.7759/cureus.10297
    We report a case of optic disc drusen (ODD) associated with peripapillary polypoidal choroidal vasculopathy (PCV). A 62-year-old Malay lady presented with both eye ODD and the left eye associated with peripapillary subretinal hemorrhage. Ultrasound B-scan and red-free photography confirmed the optic nerve head drusen findings bilaterally. Optical coherence tomography (OCT) of the left eye showed sharply elevated peripapillary pigment epithelial detachment with subretinal fluid. The presence of peripapillary polyps with branching vascular network in indocyanine green angiography of the left eye further confirmed the diagnosis of PCV and excluded choroidal neovascularization (CNV) secondary to ODD. Subsequently, the patient was treated with a combination of verteporfin photodynamic therapy with three monthly intravitreal ranibizumab injections. Three months after the combined treatment, OCT showed completely resolved subretinal fluid. ODD can cause compression of the subretinal vessels at the optic disc that results in retinal ischemia and release of vascular endothelial growth factor, which may trigger the development of CNV or PCV. The rarity of this combination makes it interesting to study more cases of ODD with PCV. Importantly, a thorough evaluation in distinguishing the PCV from the CNV that mimics it is crucial for early detection and prompt intervention. In this case, indocyanine green angiography (ICGA) is the diagnostic method to differentiate the PCV from CNV secondary to ODD.
    Matched MeSH terms: Polyps
  13. Johdi NA, Mazlan L, Sagap I, Jamal R
    Cytokine, 2017 11;99:35-42.
    PMID: 28689023 DOI: 10.1016/j.cyto.2017.06.015
    Soluble proteins including cytokines, chemokines and growth factors are small proteins that mediate and regulate immunity. They involved in the pathogenesis of many diseases including cancers. The concentration of these proteins in biological fluids (serum or plasma) and tissues in diseases may suggest pathway activation that leads to inflammatory response or disease progression. Therefore, these soluble proteins may be useful as a tool for screening, diagnosis classification between stages of disease or surveillance for therapy. Enzyme-linked immunosorbent assays (ELISA) and bioassay have been used as a gold standard in cytokine level measurements in clinical practice. However, these methods allow only single cytokine detection at a time and ineffective for screening purposes. Hence, the innovation of multiplexing technology allows measurement of many these soluble proteins simultaneously, thus allowing rapid, cost effective and better efficiency by using a minute amount of sample. In this study, we explored the profiles of key inflammatory cytokines, chemokines and other soluble proteins from the serum derived from colorectal carcinoma (CRC, n=20), colorectal polyps (P, n=20) and healthy volunteers (N, n=20) using multiplexed bead-based immunoassays. We aimed to evaluate if the levels of these soluble proteins can classify these groups of populations and explore the possible application of the soluble proteins as biomarkers in early stage screening and/or surveillance. We observed significant high IL-4, MIP-1β, FasL and TGF-β1 levels but lower levels for RANTES in P-derived serum as compared to N-derived serum. Significant high IL-8, VEGF, MIP-1β, Eotaxin and G-CSF observed in CRC-derived serum when compared to N-derived serum. Between CRC- and P-derived serum, significantly higher levels of IL-8, Eotaxin and G-CSF but lower levels for TGF-β1 were detected in CRC-derived serum. These preliminary results were obtained from small sample size and could be further validated with larger sample size cohort to produce a panel of biomarkers for CRC and P patients. Our findings might be useful in developing a disease-specific panel for biomarker screening assay. This could be used for early diagnosis and/or treatment surveillance.
    Matched MeSH terms: Polyps/blood*
  14. M Yusoff NNF, Ahmad S, Wan Abdul Rahman WF, Mohamud R, C Boer J, Plebanski M, et al.
    Cytokine, 2024 Jun;178:156557.
    PMID: 38452440 DOI: 10.1016/j.cyto.2024.156557
    Chronic rhinosinusitis with nasal polyps (CRSwNP) is a subtype of chronic rhinosinusitis (CRS) characterized by the presence of nasal polyps (NP) in the paranasal mucosa. Despite the complex etiology, NP is believed to result from chronic inflammation. The long-term aftermath of the type 2 response is responsible for symptoms seen in NP patients, i.e. rhinorrhea, hyposmia, and nasal obstruction. Immune cellular tolerogenic mechanisms, particularly CD4 + Foxp3 + regulatory T cells (Tregs), are crucial to curtail inflammatory responses. Current evidence suggests impaired Treg activity is the main reason underlying the compromise of self-tolerance, contributing to the onset of CRSwNP. There is compelling evidence that tumor necrosis factor 2 (TNFR2) is preferentially expressed by Tregs, and TNFR2 is able to identify the most potent suppressive subset of Tregs. Tumor necrosis factor (TNF)-TNFR2 interaction plays a decisive role in the activation and expansion of Tregs. This review summarizes current understanding of Tregs biology, focusing on the discussion of the recent advances in the study of TNF-TNFR2 axis in the upregulation of Treg function as a negative feedback mechanism in the control of chronic inflammation. The role of dysregulation of Tregs in the immunopathogenesis of CRSwNP will be analyzed. The future perspective on the harnessing Tregs-mediated self-tolerant mechanism in the management of CRSwNP will be introduced.
    Matched MeSH terms: Nasal Polyps*
  15. Uraoka T, Oka S, Ichihara S, Iwatate M, Tamai N, Kawamura T, et al.
    Dig Endosc, 2018 04;30 Suppl 1:36-40.
    PMID: 29658642 DOI: 10.1111/den.13060
    Matched MeSH terms: Colonic Polyps/pathology*; Colonic Polyps/surgery
  16. Rahmat O, Prepageran N
    Ear Nose Throat J, 2008 Dec;87(12):668-9.
    PMID: 19105136
    Matched MeSH terms: Polyps/complications; Polyps/pathology*
  17. Tai Li Min E, Abdullah B
    Ear Nose Throat J, 2020 Nov;99(9):NP103-NP104.
    PMID: 31184208 DOI: 10.1177/0145561319856576
    Matched MeSH terms: Nasal Polyps/complications*
  18. Munchar J, Rahman HA, Zawawi MM
    Eur J Gastroenterol Hepatol, 2001 Nov;13(11):1385-7.
    PMID: 11692068
    Localized giant pseudopolyposis is an interesting but unusual manifestation of both ulcerative colitis and Crohn's disease. The purpose of this report is to present a case of localized giant pseudopolyposis complicating an ulcerative colitis, and review other cases reported in the literature. The clinical and pathological findings are described. The authors also discuss the possible aspect of proper management in this type of lesion.
    Matched MeSH terms: Colonic Polyps/etiology*; Colonic Polyps/pathology
  19. Johdi NA, Ait-Tahar K, Sagap I, Jamal R
    Front Immunol, 2017;8:620.
    PMID: 28611777 DOI: 10.3389/fimmu.2017.00620
    Regulatory T cells (Tregs), a subset of CD4(+) or CD8(+) T cells, play a pivotal role in regulating immune homeostasis. An increase in Tregs was reported in many tumors to be associated with immune suppression and evasion in cancer patients. Despite the importance of Tregs, the molecular signatures that contributed to their pathophysiological relevance remain poorly understood and controversial. In this study, we explored the gene expression profiles in Tregs derived from patients with colorectal cancer [colorectal carcinoma (CRC), n = 15], colorectal polyps (P, n = 15), and in healthy volunteers (N, n = 15). Tregs were analyzed using CD4(+)CD25(+)CD127(low)FoxP3(+) antibody markers. Gene expression profiling analysis leads to the identification of 61 and 66 immune-related genes in Tregs derived from CRC and P patients, respectively, but not in N-derived Treg samples. Of these, 30 genes were differentially expressed both in CRC- and P-derived Tregs when compared to N-derived Tregs. Most of the identified genes were involved in cytokine/chemokine mediators of inflammation, chemokine receptor, lymphocyte activation, and T cell receptor (TCR) signaling pathways. This study highlights some of the molecular signatures that may affect Tregs' expansion and possible suppression of function in cancer development. Our findings may provide a better understanding of the immunomodulatory nature of Tregs and could, therefore, open up new avenues in immunotherapy.
    Matched MeSH terms: Colonic Polyps
  20. Yang DH, Luvsandagva B, Tran QT, Fauzi A, Piyachaturawat P, Soe T, et al.
    Gut Liver, 2021 05 15;15(3):391-400.
    PMID: 32839364 DOI: 10.5009/gnl20140
    Background/Aims: The clinical practice pattern of polypectomy is not well-investigated in Asian countries. We aimed to survey Asian endoscopists about their preferred polypectomy techniques for given conditions and images of polyps.

    Methods: A survey was performed using questionnaires composed of two parts: a scenario-based questionnaire using scenarios of polyps, which were adopted from the European Society of Gastrointestinal Endoscopy guidelines, and an image-based questionnaire using provided endoscopic images of polyps.

    Results: A total of 154 endoscopists participated in this survey. The most preferred resection techniques for diminutive (≤5 mm), small (6-9 mm), and benign-looking intermediate (10-19 mm) nonpedunculated polyps were cold forceps polypectomy, hot snare polypectomy, and endoscopic mucosal resection (EMR), respectively, in both the scenario- and image-based questionnaires. For benign-looking large (≥20 mm) nonpedunculated polyps, EMR and endoscopic submucosal dissection (ESD) were preferred in the scenario- and image-based surveys, respectively. In case of malignant nonpedunculated polyps, EMR and ESD were preferred for intermediate-sized and large lesions, respectively, according to the scenario-based survey. However, ESD was preferred in both intermediate-sized and large malignant nonpedunculated polyps according to the image-based survey. Trainee endoscopists, endoscopists working in referral centers, and endoscopists in the colorectal cancer-prevalent countries were independently associated with preference of cold snare polypectomy for removing small polyps.

    Conclusions: The polypectomy practice patterns of Asian endoscopists vary, and cold snare polypectomy was not the most preferred resection method for polyps <10 mm in size, in contrast to recent guidelines.

    Matched MeSH terms: Intestinal Polyps/surgery
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