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1.
Annals of the Academy of Medicine, Singapore ; : 885-896, 2020.
Article in English | WPRIM | ID: wpr-877690

ABSTRACT

Allergic rhinitis (AR) is prevalent in Singapore, with a significant disease burden. Afflicting up to 13% of the population, AR impairs quality of life, leads to reduced work productivity and is an independent risk factor for asthma. In the last 2 decades, local studies have identified patient and physician behaviours leading to suboptimal control of the disease. Yet, there is an overall lack of attention to address this important health issue. Allergic Rhinitis and its Impact on Asthma (ARIA) is a European organisation aimed at implementing evidence-based management for AR worldwide. Recent focus in Europe has been directed towards empowering patients for self-management, exploring the complementary role of mobile health, and establishing healthcare system-based integrated care pathways. Consolidation of these ongoing efforts has led to the release of the 2019 ARIA care pathways. This review summarises the ARIA update with particular emphasis on the current status of adult AR in Singapore. In addition, we identify unmet needs and future opportunities for research and clinical care of AR in the local context.

2.
Allergy, Asthma & Immunology Research ; : 527-534, 2016.
Article in English | WPRIM | ID: wpr-90955

ABSTRACT

PURPOSE: The Asia-Pacific Burden of Respiratory Diseases (APBORD) study is a cross-sectional, observational one which has used a standard protocol to examine the disease and economic burden of allergic rhinitis (AR), asthma, chronic obstructive pulmonary disorder (COPD), and rhinosinusitis across the Asia-Pacific region. Here, we report on symptoms, healthcare resource use, work impairment, and associated costs in Korea. METHODS: Consecutive participants aged ≥18 years with a primary diagnosis of asthma, AR, COPD, or rhinosinusitis were enrolled. Participants and their treating physician completed a survey detailing respiratory symptoms, healthcare resource use, and work productivity and activity impairment. Costs included direct medical cost and indirect cost associated with lost work productivity. RESULTS: The study enrolled 999 patients. Patients were often diagnosed with multiple respiratory disorders (42.8%), with asthma/AR and AR/rhinosinusitis the most frequently diagnosed combinations. Cough or coughing up phlegm was the primary reason for the medical visit in patients with a primary diagnosis of asthma and COPD, whereas nasal symptoms (watery runny nose, blocked nose, and congestion) were the main reasons in those with AR and rhinosinusitis. The mean annual cost for patients with a respiratory disease was US$8,853 (SD 11,245) per patient. Lost productivity due to presenteeism was the biggest contributor to costs. CONCLUSIONS: Respiratory disease has a significant impact on disease burden in Korea. Treatment strategies for preventing lost work productivity could greatly reduce the economic burden of respiratory disease.


Subject(s)
Humans , Asthma , Cost of Illness , Cough , Delivery of Health Care , Diagnosis , Efficiency , Health Care Costs , Korea , Nose , Observational Study , Presenteeism , Pulmonary Disease, Chronic Obstructive , Respiratory Tract Diseases , Rhinitis, Allergic
3.
Asia Pacific Allergy ; (4): 142-148, 2014.
Article in English | WPRIM | ID: wpr-749995

ABSTRACT

BACKGROUND: Allergic rhinitis and rhinosinusitis, common and debilitating conditions, should be managed in accordance with guideline recommendations. Guideline adherence shows regional differences. As of now, there is little data from Asia and none from Malaysia on the current treatment practices and unmet needs in the management of these conditions. OBJECTIVE: The objective of this study was to assess the current practice in the management of allergic rhinitis and rhinosinusitis by conducting a survey among ear, nose and throat (ENT) specialists, pharmacists, and general practitioners (GPs) in Malaysia. METHODS: We conducted a survey study among ENT specialists, pharmacists, and GPs in Malaysia, who answered a multiple choice questionnaire focused on the current practice in the management of allergic rhinitis and rhinosinusitis in their respective field. More than 200 ENT specialists, 100 pharmacists, and 200 GPs participated in the survey. RESULTS: Antihistamines were the most preferred choice for the treatment of mild allergic rhinitis by ENT specialists (45%), pharmacists (78%), and GPs (51%), with the most preferable duration of 3 months with antihistamines. Satisfaction with the recommendations in the current Allergic Rhinitis and its Impact on Asthma (ARIA) guideline was high; 66%, 58%, and 89% of the ENT specialists, pharmacists, GPs, respectively, reported that the current ARIA guidelines are sufficient for their clinical/pharmacy practice. CONCLUSION: The current practices in the management of allergic rhinitis in Malaysia are largely in line with the ARIA guidelines. The majority of physicians and pharmacists are satisfied with the recommendations in the ARIA guidelines.


Subject(s)
Humans , Asia , Asthma , Ear , General Practitioners , Guideline Adherence , Histamine Antagonists , Malaysia , Nose , Pharmacists , Pharynx , Professional Practice , Rhinitis, Allergic , Sleep Stages , Specialization , Steroids , Surveys and Questionnaires
4.
Asia Pacific Allergy ; (4): 48-53, 2014.
Article in English | WPRIM | ID: wpr-749970

ABSTRACT

BACKGROUND: Over the last 10-20 years, international guidelines and consensus statements for the management of common allergic diseases (e.g. allergic rhinitis and asthma) have been developed and disseminated worldwide. However, their impact on knowledge and standard of clinical practice among primary care physicians and specialists is unknown. OBJECTIVE: To investigate need for an improvement in the dissemination of international guidelines for the diagnosis and management of allergic rhinitis. METHODS: Seven medical students who attended 3-day 1st International Basic Allergy Course (2010) took down all questions raised during the entire course. A systemic analysis of these questions was performed to identify areas for improvement in diagnosis and management of allergic diseases mainly in the Association of Southeast Asian Nations (ASEAN) region. RESULTS: 268 participants, 143 males and 125 females, comprising Ear, Nose and Throat (ENT) specialists (n = 106) and trainees (n = 34), general practitioners (n = 87), and other healthcare professionals (n = 41) attended the course. Of the 103 questions recorded, 59 were regarding treatment modalities in allergy practice such as immunotherapy (n = 38), pharmacologics (n = 15), nasal surgery (n = 2), and others (n = 4). 41 questions (39.8%) have answers based in the Allergic Rhinitis and its Impact on Asthma guidelines (2001 and 2008). Certain questions were selected for further analysis because they appeared to be (a) more commonly asked (e.g. immunotherapy) or (b) were deemed to be challenging or, even controversial (e.g. food allergy and differential diagnosis between vasovagal and anaphylaxis reaction), as the recommendations in current international guidelines were less well-defined. CONCLUSION: Our study identified several problems that, if tackled, could help minimize confusion and provide better care for patients suffering from allergic diseases especially in the ASEAN region.


Subject(s)
Female , Humans , Male , Anaphylaxis , Asian People , Asthma , Consensus , Delivery of Health Care , Diagnosis , Diagnosis, Differential , Ear , Food Hypersensitivity , General Practitioners , Hypersensitivity , Immunotherapy , Nasal Surgical Procedures , Nose , Pharynx , Physicians, Primary Care , Rhinitis, Allergic , Specialization , Students, Medical
5.
Chinese Journal of Otorhinolaryngology Head and Neck Surgery ; (12): 22-25, 2013.
Article in Chinese | WPRIM | ID: wpr-315827

ABSTRACT

<p><b>OBJECTIVE</b>To study the possible association between interferon regulatory factor 5 (IRF5) gene polymorphism and allergic rhinitis (AR).</p><p><b>METHODS</b>Six independent single nucleotide polymorphism (SNP, rs729302, rs4728142, rs3807306, rs2070197, rs11770589, rs2280714) were analyzed. The genotype and allele frequencies were detected in 110 AR patients and 101 healthy controls in Singapore Chinese population by polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP).</p><p><b>RESULTS</b>Rs729302 was rejected as it was not polymorphic. For others SNP, no statistically significant difference was detected in genotype between AR and healthy control group (χ(2) value were 0.21, 5.02, 0.01, 2.91, 0.37, all P > 0.05). No statistically significant difference was detected in allele frequencies between AR and healthy control group (χ(2) value were 0.00, 2.78, 0.01, 2.31, 0.00, all P > 0.05).</p><p><b>CONCLUSION</b>No association is observed between IRF5 and AR in Singapore Chinese population.</p>


Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Case-Control Studies , Gene Frequency , Genotype , Interferon Regulatory Factors , Genetics , Polymorphism, Single Nucleotide , Rhinitis, Allergic , Rhinitis, Allergic, Perennial , Genetics , Singapore
6.
Chinese Journal of Burns ; (6): 454-458, 2013.
Article in Chinese | WPRIM | ID: wpr-284078

ABSTRACT

A 55-year-old male patient suffered from severe high-voltage electric burn with an area of 20%TBSA full-thickness injury. The injury involved the distal end of left upper limb, right trunk, and whole abdominal wall. Fracture of the 7th-10th ribs was found in the right side of chest, with perforation of abdominal cavity, and bilateral pleural effusion was found. Part of the small intestine was necrotic and exposed. At the early stage, xeno-acellular dermal matrix was grafted after debridement of abdominal wound; peritoneal lavage was performed; negative pressure drainage was performed in orificium fistula of intestine for promoting the adhesion between perforated intestine and abdominal scar. Two orificium fistulas formed after closure of abdominal granulation wound by autologous skin grafting. Eschar of chest wall and denatured ribs were retained. The risk of infection of thoracic cavity was decreased by promoting the adhesion between lung tissue and chest wall. During the treatment, the patient was diagnosed with Henoch-Schonlein purpura nephritis by renal biopsy, with the symptoms of purpura in the lower limbs, heavy proteinuria, severe hypoalbuminemia, edema, etc. After control of kidney damage by immunosuppressive treatment instead of glucocorticoid, alleviation of the levels of proteinuria and blood albumin, free latissimus dorsi myocutaneous flap was excised to repair chest wall, and free skin graft was excised to repair intestinal fistula. After all the wounds were successfully covered, the patient was treated with glucocorticoid combined with immunosuppressants for more than 1 year. The patient was followed up for 3 years, and his renal function was completely recovered with satisfactory clinical outcome.


Subject(s)
Humans , Male , Middle Aged , Abdominal Cavity , Abdominal Injuries , General Surgery , Burns, Electric , General Surgery , Nephritis , General Surgery , IgA Vasculitis , General Surgery , Thoracic Cavity , Thoracic Injuries , General Surgery
7.
Asia Pacific Allergy ; (4): 233-236, 2012.
Article in English | WPRIM | ID: wpr-749922

ABSTRACT

For patients suffering from allergic rhinitis (AR), general practitioners (GPs) are often their first source of medical advice. It is one of the top-ten reasons for a visit to the primary care clinics and AR was estimated to be 10-40% of the total patient visits in about 50% of the primary care clinics. The standard of management for AR among GPs is thus a key outcome assessment of AR management and implementation of international guidelines in general healthcare practice.


Subject(s)
Humans , Delivery of Health Care , Diagnosis , General Practitioners , Primary Health Care , Rhinitis, Allergic
8.
Clinical and Experimental Otorhinolaryngology ; : 181-187, 2012.
Article in English | WPRIM | ID: wpr-27081

ABSTRACT

During the past decades, numerous computational fluid dynamics (CFD) studies, constructed from CT or MRI images, have simulated human nasal models. As compared to rhinomanometry and acoustic rhinometry, which provide quantitative information only of nasal airflow, resistance, and cross sectional areas, CFD enables additional measurements of airflow passing through the nasal cavity that help visualize the physiologic impact of alterations in intranasal structures. Therefore, it becomes possible to quantitatively measure, and visually appreciate, the airflow pattern (laminar or turbulent), velocity, pressure, wall shear stress, particle deposition, and temperature changes at different flow rates, in different parts of the nasal cavity. The effects of both existing anatomical factors, as well as post-operative changes, can be assessed. With recent improvements in CFD technology and computing power, there is a promising future for CFD to become a useful tool in planning, predicting, and evaluating outcomes of nasal surgery. This review discusses the possibilities and potential impacts, as well as technical limitations, of using CFD simulation to better understand nasal airflow physiology.


Subject(s)
Humans , Hydrodynamics , Nasal Cavity , Nasal Surgical Procedures , Nose , Rhinomanometry , Rhinometry, Acoustic
9.
Asia Pacific Allergy ; (4): 152-156, 2011.
Article in English | WPRIM | ID: wpr-749873

ABSTRACT

The prevalence of allergic diseases is high globally, but especially in developed countries, with one in five to one in four individuals affected worldwide. The World Health Organization's "Allergic Rhinitis and its Impact on Asthma 2008 Update" guidelines stated explicitly that over 600 million patients from all countries, all ethnic groups and all ages suffer from allergic rhinitis (AR). There are clear evidences to support the concept that allergic diseases are influenced by genetic predisposition and environmental factors. The genetic basis of AR has been evaluated more intensively in the recent 10-20 years. Advances in technology and statistical methods, such as genome-wide association studies (GWAS) have enabled millions of single nucleotide polymorphisms (SNPs) to be genotyped at rapid pace and for less cost. However these studies have not yet answered the entire heritability profile of the disease. Additionally, environmental influences on these genetic variants cannot be discounted. Hence these allergic diseases must be evaluated as a complex interplay between genetic and environmental factors. This review focuses on the genetic basis of AR, with special emphasis on studies performed in Singapore. Candidate gene based studies and GWAS performed in Singapore cohorts have been discussed to suggest how these diseases could be understood better in a Singapore context which is still applicable to research in AR globally.


Subject(s)
Humans , Asian People , Asthma , Cohort Studies , Developed Countries , Ethnicity , Genetic Predisposition to Disease , Genome-Wide Association Study , Global Health , Polymorphism, Single Nucleotide , Prevalence , Rhinitis , Rhinitis, Allergic , Singapore
10.
Chinese Journal of Otorhinolaryngology Head and Neck Surgery ; (12): 303-307, 2011.
Article in Chinese | WPRIM | ID: wpr-250299

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the relationship between the patient-based questionnaires and the computed tomography (CT) staging in patients with chronic rhinosinusitis (CRS).</p><p><b>METHODS</b>Quantitative data of 121 preoperative recruits with CRS were collected by using the Lund-Mackay CT staging system, a visual analogue scale (VAS), sino-nasal outcome test-20 (SNOT-20), and the medical outcome study short-form 36 items (SF-36). The patients were classified into several subgroups according to whether CRS was associated with nasal polyps (NP) or not, sex, duration of disease, and educational background. Correlation between the patient-based questionnaires and the CT staging were analyzed in the total cohort patients and subgroups.</p><p><b>RESULTS</b>In the total cohort patients, there were significant correlations between SNOT-20 and SF-36 (r = -0.561, P < 0.01), SNOT-20 and VAS (r = 0.743, P < 0.01), and SF-36 and VAS (r = -0.504, P < 0.01), however, the CT staging did not correlate with the patient-based questionnaires (P > 0.05). Significant but weak correlations were found between the CT staging and the patient-based questionnaires in the CRS with NP subgroup (CT vs SNOT-20, r = 0.318, P = 0.005; CT vs SF-36, r = -0.358, P = 0.002; CT vs VAS, r = 0.358, P = 0.002). Compared between CRS with NP and without NP subgroup, there were statistic differences on the Lund-Mackay CT stage and the SNOT-20 and VAS scores (t value was 3.249, -2.409, -2.957, respectively, all P < 0.05).</p><p><b>CONCLUSIONS</b>The patient-based questionnaires correlate well with each other, but CT staging correlated significantly but weakly with the patient-based questionnaires only in the CRS with NP subgroup. Nasal polyps do not appear to be responsible for the adverse effects of CRS on quality of life.</p>


Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Chronic Disease , Nasal Polyps , Diagnostic Imaging , Psychology , Pain Measurement , Quality of Life , Sinusitis , Diagnostic Imaging , Psychology , Surveys and Questionnaires , Tomography, X-Ray Computed
11.
Chinese Journal of Burns ; (6): 30-33, 2010.
Article in Chinese | WPRIM | ID: wpr-305625

ABSTRACT

<p><b>OBJECTIVE</b>To summarize the experiences and shortcomings of repair of wounds on hands due to electrical burns with flaps, aiming at further improvement.</p><p><b>METHODS</b>Clinical data of 425 patients with electrical burn of hands admitted to Burn Institute of Wuhan, City Hospital NO. 3 & Tongren Hospital of Wuhan University from January 2000 to December 2006 were collected and summarized. Therapeutic methods and outcomes of all patients were statistically analyzed. Flap types, complications after surgery and problems existed in patients having undergone flap transplantation were summarized. Patients were divided into surgery within 7days post burn (PBD) group (SW) and surgery after PBD 7 group (SA) according to the timing of surgery. Survival rate of flaps and incidence of complications in patients of two groups were compared.</p><p><b>RESULTS</b>Out of the 425 patients, 348 (90.2%) patients underwent surgery, among which 248 flaps of different types were transplanted in 209 patients, including 202 (81.5%) distant pedicle flaps, 19 (7.7%) local flaps, 12 (4.8%) free flaps, and 15 (6.0%) other kinds of tissue flaps. Five flaps failed because of necrosis of torn off, and the resulting wounds were treated with other methods. Eight flaps showed necrosis of distal margin, and the wound healed with dressing changing or skin grafting. All the remaining flaps survived with satisfactory cosmetic and functional results. In SW group (n = 170) and SA group (n = 78), survival rate of flaps was respectively 98.8% (168/170) and 96.2% (75/78), incidence of complications was respectively 10.6% (18/170) and 12.8% (10/78). There was no statistical difference between above two sets of data (with chi(2) value respectively 0.81 and 0.27, and P values both above 0.05).</p><p><b>CONCLUSIONS</b>There are many types of flaps that can be used to repair electric burn wounds on hands. Appropriate choice and design of flaps, skillful operation, and careful post-operation observation and treatment are key points for good therapeutic effect.</p>


Subject(s)
Adolescent , Adult , Child , Female , Humans , Male , Middle Aged , Young Adult , Burns, Electric , General Surgery , Hand Injuries , General Surgery , Plastic Surgery Procedures , Methods , Skin Transplantation , Surgical Flaps
12.
Chinese Journal of Burns ; (6): 296-299, 2010.
Article in Chinese | WPRIM | ID: wpr-305592

ABSTRACT

<p><b>OBJECTIVE</b>To study the clinical distribution characteristics and vicissitude of antibiotic resistance of Acinetobacter baumannii (AB), and to look for the risk factors of AB infection in order to provide reasonable reference for the prevention and treatment of its infection.</p><p><b>METHODS</b>Specimens of blood, venous catheters, sputum, wound exudates and pharyngeal swabs from 156 patients hospitalized in our burn ICU from January 2006 to December 2008 were collected and cultured. The clinical distribution and antibiotic resistance of AB were determined and analyzed. The risk factors related to AB infection were analyzed. Drug resistance rate data were processed with WHONET 5.3 software; the other data were processed with chi-square test and Logistic regression analysis.</p><p><b>RESULTS</b>Ninety-two strains of AB were identified during the three years from different kinds of specimens, with 41 (44.6%) from wound exudates, 14 (15.2%) from pharyngeal swabs and sputum respectively, 13 (14.1%) from blood, and 10 (10.9%) from venous catheters. AB accounted for 23.1% (30/130), 27.5% (25/91), 28.2% (37/131) respectively among the strains detected in 2006, 2007, and 2008. During the three years, except for imipenem and cefoperazone/sulbactam, the average resistance rates of AB to other ten commonly used antibiotics were all above 50.0%. Burn area (χ(2) = 24.374, P = 0.000), mechanical ventilation (χ(2) = 8.968, P = 0.003), duration of use of antibiotics (χ(2) = 3.981, P = 0.046), and deep venous catheterization (χ(2) = 9.170, P = 0.002) were the risk factors of AB infection, and the former two were independent risk factors.</p><p><b>CONCLUSIONS</b>There is a pan-drug resistance tendency of AB in our burn ICU, and the positive culture rates are increasing in recent years. Disinfection and isolation measures, appropriate use of antibiotics, avoidance of invasive performances such as deep venous catheterization and tracheostomy, or shortening their duration are important means to prevent and control infection of AB.</p>


Subject(s)
Adult , Female , Humans , Male , Young Adult , Acinetobacter Infections , Epidemiology , Acinetobacter baumannii , Burns , Epidemiology , Microbiology , China , Epidemiology , Cross Infection , Microbiology , Drug Resistance, Bacterial , Intensive Care Units
13.
Annals of the Academy of Medicine, Singapore ; : 91-94, 2009.
Article in English | WPRIM | ID: wpr-340695

ABSTRACT

<p><b>INTRODUCTION</b>Sensori-neural hearing loss (SNHL) is a frequent complication of conventional radiotherapy for head and neck tumours, especially nasopharyngeal carcinoma. To manage radiation-induced ototoxicity appropriately, an understanding of the cellular and molecular basis of this complication is necessary.</p><p><b>MATERIALS AND METHODS</b>A medline search of relevant literature was done, focusing on the radiation-induced cellular and molecular processes that lead to hair cell death in the cochlea.</p><p><b>RESULTS</b>Radiation-induced SNHL occurs in the cochlea, with the retro-cochlear pathways remaining functionally intact. By simulating radiotherapy regimes used clinically, radiation-induced cochlear cell degeneration in the absence of damage to the supporting structures and blood vessels has been demonstrated in animals. This could be due to apoptotic cochlear cell death, which has been shown to be associated with p53 upregulation and intra-cellular reactive oxygen species (ROS) generation. Oxidative stress may initiate the upstream processes that lead to apoptosis and other cell death mechanisms.</p><p><b>CONCLUSIONS</b>A model of radiation-induced SNHL based on a dose and ROS-dependent cochlear cell apoptosis, is proposed. This model supports the feasibility of cochlear implantation, should one be clinically indicated. It can explain clinical observations such as radiation-induced SNHL being dose-dependent and affects the high frequencies more than the lower frequencies. It also opens up the possibility of preventive strategies targeted at different stages of the apoptotic process. Antioxidants look promising as effective agents to prevent radiation-induced ototoxicity; they target upstream processes leading to different cell death mechanisms that may co-exist in the population of damaged cells.</p>


Subject(s)
Animals , Humans , Mice , Cell Death , Cell Line , Cochlea , Radiation Effects , Genes, p53 , Hair Cells, Auditory , Radiation Effects , Hearing Loss, Sensorineural , Genetics , Radiation Injuries , Reactive Oxygen Species , Metabolism
14.
Chinese Journal of Burns ; (6): 36-38, 2008.
Article in Chinese | WPRIM | ID: wpr-347644

ABSTRACT

<p><b>OBJECTIVE</b>To summarize the characteristics and treatment of burn casualties of yellow phosphorus explosion, so as to share the experiences in emergency treatment.</p><p><b>METHODS</b>By analyzing the data related to this accident, the characteristics of the injury and experiences of treatment for mass burn casualties from yellow phosphorous explosion were summarized.</p><p><b>RESULTS</b>Eighty-one patients, 72 males and 9 females, were injured in a yellow phosphorus explosion. The mean age of the patients was 24 +/- 13 years old (5-42 y). The mean total burn surface area was (9 +/- 11)% [(0.4% - 70.0%))] TBSA, and the mean burn surface area of III degrees/IV degrees was (7 +/- 10)% [(0.4% - 60.0%)] TBSA. Most of the patients showed the symptoms and signs of phosphorus poisoning. Among all the patients, 27 cases (33.3%) showed hepatic dysfunction, 15 cases (18.5%) had renal dysfunction, 42cases (51.9%) showed electrolytes disorders. Among the 8 patients with burn surface area over 10% TBSA and less than 20% TBSA, high levels of cardiac enzymes were found in 6 cases, anaemia in 7 cases (3 with progressive anaemia), asphyxia occurred in 1 case 48 hours after burn, and in 1 case complicated with stress ulcer. Escharectomy and skin grafting were performed within four days after burn in 72 patients. All the patients survived, some of them showed impaired hand function and hypertrophic scar, and partial finger amputation was done in 3 patients.</p><p><b>CONCLUSION</b>Yellow phosphorus explosion produces deep burn injuries in surrounding people especially in exposed parts such as head, hand and so on. Adequate organization of medical resources for emergency treatment, early debridement, and accelerating excretion of phosphorus are the key points for the successful rescue of mass casualties.</p>


Subject(s)
Adolescent , Adult , Child , Child, Preschool , Female , Humans , Male , Young Adult , Accidents, Occupational , Burns, Chemical , Therapeutics , Combined Modality Therapy , First Aid , Phosphorus
15.
Chinese Journal of Otorhinolaryngology Head and Neck Surgery ; (12): 840-844, 2008.
Article in Chinese | WPRIM | ID: wpr-339256

ABSTRACT

<p><b>OBJECTIVE</b>To observe the presence of bacterial biofilms in mucosal specimens in patients operated for chronic rhinosinusitis.</p><p><b>METHODS</b>A total of 12 subjects undergoing endoscopic sinus surgery were included. The control group was 6 patients with obstructive sleep apnea-hypopnea syndrome. Six patients with chronic rhinosinusitis were enrolled in the study group. Mucosa of uncinate process, ethmoid bulla or maxillary sinus was obtained during endoscopic sinus surgery. All the samples were prepared using standard methods for scanning electron microscopy. Patients' information such as age, gender, symptoms, sinus CT, endoscopic examination, skin prick test were recorded in detail.</p><p><b>RESULTS</b>Standard-preparation scanning electron microscopy displayed denuded epithelium and disarrayed cilia in chronic rhinosinusitis patient's mucosa. In the study group, bacterial biofilms of different morphology were seen in five samples; One sample showed filamentous structure like fungi. Using strict scanning electron microscopy morphologic criteria, 83.3% samples in the study group were found to have micrographic evidence of biofilms. No bacterial biofilms were detected in the control group.</p><p><b>CONCLUSIONS</b>In the patients undergoing surgery for chronic rhinosinusitis, different degree of mucosal injury could be found. Bacteria biofilms of different life stages were demonstrated to be present. No bacterial biofilms were detected in the control group.</p>


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Biofilms , Case-Control Studies , Chronic Disease , Microscopy, Electron, Scanning , Nasal Mucosa , Microbiology , Sinusitis , Microbiology
16.
Clinical and Experimental Otorhinolaryngology ; : 177-183, 2008.
Article in English | WPRIM | ID: wpr-167136

ABSTRACT

Nasal polyposis (NP) is a common chronic inflammatory disease of the rhinosinus mucosa and a complex disease with strong genetic and environmental components. During the past 10 to 20 yr, many studies have been performed to determine differential gene expression profiles between NP and normal nasal tissues, in order to identify susceptible genes that are associated with NP-related traits. Despite achievement in the identification of candidate genes and their associated pathogenic pathways, the large challenges remain as the genetic and molecular alterations required for its development and progression are still unclear. Therefore, the development of novel, powerful tools for gene discovery, and a closer integration of genetics and medical biology would provide valuable insight into the pathogenesis of NP.


Subject(s)
Achievement , Biology , Gene Expression , Genetic Association Studies , Mucous Membrane , Transcriptome
17.
Chinese Journal of Burns ; (6): 356-358, 2007.
Article in Chinese | WPRIM | ID: wpr-347673

ABSTRACT

<p><b>OBJECTIVE</b>To analyze the feasibility of reverse island flaps pedicled with cutaneous nerve nutrient vessels in repairing the defect on distal parts of extremities.</p><p><b>METHODS</b>Thirty patients with tissue defect in distal extremities, complicated by exposed vessels, nerve, tendons, and/or bones ,were repaired with island flaps pedicled with neurocutaneous nutrient vessel. Among them, five cases were grafted with flaps with external forearm cutaneous nerve vessels, eleven cases were grafted with flap containing sural neural nutrient vessels in its pedicle,and 14 cases with saphenous nerve nutrient vessels in the pedicles.</p><p><b>RESULTS</b>The flaps of 28 cases survived with perfect appearance and function. In one case partial necrosis occurred because of compression on the pedicle, but the patient healed after dressing, and another case with necrosis of the edge of the flap due to infection, but also healed after skin grafting.</p><p><b>CONCLUSION</b>The reverse island flaps pedicled with cutaneous nerve nutrient vessels which are constant in anatomy, with reliable blood supply, can be recommended because its simple operative technique, non-injurious to main blood vessels and muscles, the repair of distal defects of the extremities.</p>


Subject(s)
Adolescent , Adult , Child , Humans , Male , Middle Aged , Young Adult , Extremities , Wounds and Injuries , Peripheral Nervous System , Plastic Surgery Procedures , Skin , Skin Transplantation , Methods , Soft Tissue Injuries , General Surgery , Surgical Flaps , Wound Healing
18.
Chinese Journal of Otorhinolaryngology Head and Neck Surgery ; (12): 245-249, 2007.
Article in Chinese | WPRIM | ID: wpr-262893

ABSTRACT

<p><b>OBJECTIVE</b>To implore the positive effects of endoscopic sinus surgery on the symptoms and quality of life (QOL) of patients with chronic rhinosinusitis (CRS) and their changing regularity of symptoms and QOL.</p><p><b>METHODS</b>A prospective, randomized and controlled trial was conducted to survey symptoms and QOL status of 120 CRS patients undergoing endoscopic sinus surgery, in contrast to that of 200 healthy individuals passing health examination, at the baseline and at 3- and 6-months postoperatively by visual analog score (VAS) symptom instrument and QOL instruments including medical outcome study short-form 36-items health survey (SF-36) and sino-nasal outcome test-20 (SNOT-20).</p><p><b>RESULTS</b>In the 3 months follow-up settings, total of individual symptom severity scores and global symptom severity scores of VAS, such domains as role physical and general health of SF-36 and total of the 20 items scores and the most important 5-item scores of SNOT-20 all began to get better markedly (P < 0.05); in the 3-6 months follow-up settings, the indices above stayed fixed (P > 0.05); and in the 6-months follow-up settings, indices of symptoms and QOL status entirely improved from the baseline, with SF-36 showing no scoring difference between CRS patients and healthy individuals, whereas VAS showed that abnormal nasal drainage and decreased sense of smell were still left and SNOT-20 showed that abnormal nasal drainage and lack of good sleep left, inferior to that of healthy objects significantly (P < 0.05).</p><p><b>CONCLUSIONS</b>On the whole CRS patients undergoing endoscopic sinus surgery recover symptomatically and come back to normal level of QOL status at the 6 months postoperatively, but such significant problems as abnormal nasal drainage, decreased sense of smell and lack of good sleep still remain and need to be treated.</p>


Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Case-Control Studies , Chronic Disease , Endoscopy , Nasal Polyps , Psychology , General Surgery , Otorhinolaryngologic Surgical Procedures , Postoperative Period , Prospective Studies , Quality of Life , Sinusitis , Psychology , General Surgery , Treatment Outcome
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