[Show abstract][Hide abstract] ABSTRACT: Objectives/HypothesisTo evaluate the effect of oral prednisolone on recovery from tonsillectomy.Study DesignProspective, randomized, controlled trial of 198 consecutive patients, aged 4 years and older, with no previous or known contraindications to steroid therapy.Methods
All 198 patients scheduled for elective tonsillectomy with or without adenoidectomy from April 2013 to April 2014 were included. The participants were then randomly assigned to receive a postoperative course of prednisolone 0.25 mg/kg/d or no prednisolone over 7 days. During the first postoperative day, pain, type of diet (none, fluid, soft, normal), type of activity (none, bed rest, quiet, restricted, normal), presence of nausea and vomiting, postoperative bleeding rate, and sleep disturbance were assessed using questionnaires. All patients were followed up on days 7 and 14 by endoscopic photographic examination of both tonsillar fossa and by completion of questionnaires.ResultsNo statistically significant differences in pain, diet, activity, rate of minor bleeding, nausea/vomiting, fever, or sleep disturbance were observed between the groups on day 1. On day 7, however, in pediatric patients, differences in pain (P = .001), diet (P = .001), activity (P = .004), mean area of re-epithelialization (P = .000), fever (P = .04), and sleep disturbance (P = .04) were observed. On day 14, differences in the mean area of re-epithelialization (P = .000, .001) remained in both pediatric and adult patients.Conclusions
Oral prednisolone may be beneficial during recovery from tonsillectomy without causing any serious complications.Level of Evidence1b. Laryngoscope, 2014
[Show abstract][Hide abstract] ABSTRACT: Churg-Strauss syndrome is a rare systemic vasculitis occurring in patients with asthma and peripheral eosinophilia. Lungs, skin, and the nervous system are the most common sites of involvement, although many other organs are affected frequently. We report a case of 54-year-old male with a history of asthma and chronic rhinosinusitis who was admitted to the emergency department because of dyspnea and pleural pain. He was diagnosed with Churg-Strauss syndrome based on bronchial asthma, peripheral eosinophilia, pulmonary infiltration, chronic rhinosinusitis, and extravascular eosinophil infiltration. His symptoms were resolved dramatically after treatment with corticosteroids. Allergic rhinitis and chronic rhinosinusitis with or without polyps may be present at the early stage of Churg-Strauss syndrome. Therefore, otolaryngologists may play a pivotal role in making an early diagnosis of this disease.
[Show abstract][Hide abstract] ABSTRACT: The lacrimal drainage system begins at the puncta and empties through the valve of Hasner into the inferior meatus. The varieties of the anatomic location, size and morphology of this valve can predispose susceptible individuals to an increased incidence of iatrogenic injury during nasal surgical procedures, thus necessitating a comprehensive understanding of the system. We report two cases of epiphora following two-jaw surgeries for cosmetic purposes. Nasolacrimal duct obstructions were diagnosed, and the symptoms were improved with dacryocystorhinostomies.
[Show abstract][Hide abstract] ABSTRACT: Allergic rhinitis (AR) is often accompanied by multiple ocular symptoms. This study aimed to evaluate the prevalence of ocular symptoms and the impact of ocular symptoms on the quality of life in patients with AR.
One thousand one hundred seventy-four patients with AR were enrolled from 24 centers in Korea. They were classified into four groups according to the Allergic Rhinitis and Its Impact on Asthma (ARIA) guideline and also classified into perennial AR (PAR) and seasonal AR groups. All patients were asked to complete the questionnaire regarding the presence of ocular symptoms, such as eye itching, watery eyes, and red eyes. The correlation between ocular symptoms and the rest of the quality-of-life areas in the Mini-Rhinoconjunctivitis Quality of Life Questionnaire (Mini-RQLQ) was also asked.
Seven hundred nineteen (61.2%) of 1174 patients had ocular symptoms. In detail, the numbers of patients with eye itching, watery eyes, red eyes, and other ocular symptoms were 605 (51.5%), 313 (26.7%), 207 (17.6%), and 66 (5.6%), respectively. Female patients (72.5%) complained of ocular symptoms more commonly than male patients (55.1%). The patients with moderate-severe persistent AR showed the highest prevalence of ocular symptoms. The correlation coefficients between ocular symptoms and the rest of the quality-of-life areas in the Mini-RQLQ were statistically significant (p < 0.05).
Sixty-one percent of Korean AR patients experienced ocular symptoms. The patients who were women and had PAR and more severe AR showed higher prevalence of ocular symptoms. The ocular symptoms might have a significant impact on the quality of life in patients with AR.
Full-text · Article · Sep 2013 · American Journal of Rhinology and Allergy
[Show abstract][Hide abstract] ABSTRACT: During nasotracheal intubation it is important to have proper pretreatment for nasal mucosa constriction and nasal cavity expanding. Nasal packing of epinephrine gauze is widely used as well as xylometazoline. The aim of this study was to compare and evaluate the efficacy of prophylactic intranasal spray of xylometazoline against epinephrine gauze packing in expanding the nasal cavity.
Volunteers (n = 32) in their twenties without nasal disease such as septal deviation or rhinitis were enrolled in the study. The more patent nostril in each subject was measured by acoustic rhinometry as the base value. After intranasal spray of xylometazoline, the same nostril was remeasured by same method. Twenty four hours later, intranasal packing of epinephrine gauze was done and the same treatment was done. Subject preferences about the procedures were asked.
THERE WERE SIGNIFICANT DIFFERENCE AMONG TREATMENTS (BASE VALUE: 0.582 ± 0.164 cm(2), xylometazoline spray: 0.793 ± 0.165 cm(2), epinephrine gauze packing: 0.990 ± 0.290 cm(2)) in acoustic rhinometry. While the epinephrine gauze packing showed more efficient mucosa constriction, subjects preferred xylometazoline spray.
Even though xylometazoline spray was less effective than epinephrine gauze packing, the simplicity and convenience compensated. In patients undergoing nasotracheal intubation, xylometazoline spray can be an alternative to epinephrine gauze packing.
Full-text · Article · Aug 2013 · Korean journal of anesthesiology
[Show abstract][Hide abstract] ABSTRACT: To evaluate the surgical outcomes of endoscopic dacryocystorhinostomy with canalicular marsupialization (EDCR CM) in common canalicular obstruction.
Retrospective review of medical records.
Thirty-six patients (38 eyes) who had undergone EDCR CM for chronic epiphora caused by common canalicular obstruction.
Surgical outcomes were evaluated postoperatively by improvement of subjective symptoms and patency of the neo-ostium of DCR on nasal endoscopy.
Subjective symptoms improved in 81.6% (31/38) after primary EDCR CM and 94.7% (36/38) after revision surgery. In cases of silicone stent intubation, the surgical results were relatively superior compared with patients without silicon stent insertion (83.3% and 75.0%, respectively; p = 0.624). On postoperative nasal examination after primary surgery, the patency of dacryocystorhinostomy site was lower in patients with silicone stent insertion than those without (86.70% and 100%, respectively; p = 0.560), and the patency rate of the canalicular neo-ostium was higher in patients with silicone stent insertion than those without (90.0% and 75.0%, respectively; p = 0.279). There were no serious intraoperative complications except mild punctual erosion (4 patients, 10.5%).
EDCR CM showed favourable surgical outcomes and few surgical complications. This surgical treatment could be the first-line treatment for patients with distal common canalicular obstruction.
No preview · Article · Aug 2013 · Canadian Journal of Ophthalmology
[Show abstract][Hide abstract] ABSTRACT: Ever since the spinning process was developed, numerous research studies have been conducted and many precision instruments have been developed to control the tension in moving yarn. These efforts, however, have remained insufficient because many factors that need to be considered have not been handled in an integrated manner. To overcome this limitation, various parameters that affect the tension must be examined and the relationships among them must be discovered. Hence, the present paper reviews a variety of parameters for yarn moving from a ring spinning machine to a winding machine. These two machines, in particular, involve a series of phenomena in which the yarn passes over a stationary surface. In addition, the relevant parameters related to force, tension, and yarn motion need to be separately investigated in each spinning section (e.g., the balloon, the section from the bobbin to the traveler, and the section from the bobbin to the unwinding package) and at each part (e.g., the traveler, yarn guide, package, and tensioner).
No preview · Article · Jan 2013 · Fibers and Polymers
[Show abstract][Hide abstract] ABSTRACT: Routine use of intraoperative transesophageal echocardiography (TEE) is a safe monitoring and diagnostic method during pediatric congenital cardiac surgery. However, the question of whether intraoperative TEE is accurate and cost effective for patients with tetralogy of Fallot (TOF) has not been raised. This study aimed to analyze the cost-benefit of routine TEE during the repair of TOF. The medical records, including TEE results, for patients who underwent correction of TOF between January 1997 and June 2007 were reviewed and retrospectively analyzed. Intraoperative TEE was performed for 340 patients (85 %). Residual problems were detected in 17.9 % (61/340), and a return to bypass was needed for 10 % (34/340) of the patients. The degree of agreement between the intraoperative TEE and early postoperative transthoracic echocardiography (TTE) was relatively high. Surgeons with less surgical experience more frequently used intraoperative TEE (p = 0.007) and performed repeat bypass surgery at a higher rate (p = 0.00). Even relatively unskilled surgeons might be able to achieve surgical outcomes similar to those of experienced surgeons using intraoperative TEE. By avoiding late surgical revision, the possible cost savings were estimated to be 1,726,000 Korean won (US$1,489) per TEE examination. Intraoperative TEE can be used as a tool for surgeons in making decisions in the operating room. In addition, intraoperative TEE decreased the frequency of reoperations and postoperative interventions. The results of this study demonstrate that routine intraoperative TEE during repair of TOF was both clinically beneficial and cost effective.
No preview · Article · Jul 2012 · Pediatric Cardiology
[Show abstract][Hide abstract] ABSTRACT: In nasolacrimal duct (NLD) obstruction patients that undergo endoscopic dacryocystorhinostomy (DCR), creation of a patent rhinostomy with adequate epithelialization can be accomplished without a stent. However, in common canalicular obstruction patients, a silicone stent seems to have a beneficial role and to bear more favorable results.
The aim of this study was to evaluate the surgical outcome of endoscopic DCR without the use of a silicone stent.
In all, 36 patients (41 eyes) who underwent endoscopic DCR were enrolled in this study. The patients were classified into a DCR with silicone stent group and a DCR without silicone stent group. Then each of the groups was subdivided into common canalicular obstruction group and NLD obstruction group. Surgical outcomes were evaluated by postoperative symptom improvement and patency of the rhinostomy under nasal endoscopic exam.
The epiphora was improved in 84.2% of the silicone stent group and 81.8% of the non-silicone stent group. Categorized by the level of obstruction, in common canalicular obstruction, the success rate was 84.5% (11/13) in the silicone stent group and 57.1% (4/7) in the no stent group. In NLD obstruction, the success rate was 83.0% (5/6) in the silicone stent group and 93.3% (14/15) in the no stent group.
No preview · Article · Mar 2012 · Acta oto-laryngologica
[Show abstract][Hide abstract] ABSTRACT: The study group for sinonasal tumors at the Korean Rhinologic Society analyzed the results of the Korean multicenter experience for sinonasal inverted papilloma (IP) surgeries.
Multicenter cohort study and retrospective analysis.
In total, 939 patients diagnosed with sinonasal IP treated between 1998 and 2007 at 17 university hospitals were enrolled. Demographic data and information about previous surgeries, the origin and involved site of the tumor, the surgical approach, follow-up duration, recurrence, and the presence of malignancy were collected. There were 361 patients whose follow-up was <12 months who were excluded, and 578 patients were included for recurrence analysis.
The mean follow-up duration for recurrence analysis was 41.0 months, and 15.7% (91/578) had recurrences, with a mean time to recurrence of 32.6 months. However, the group whose follow-up was longer than 3 years had a higher chance of tumor recurrence. Patients whose IPs involved the frontal sinus or the medial wall of the maxillary sinus had higher recurrence rates. There was no significant difference in recurrence rates according to stage or surgical approach. In the T3 stage of Krouse, the T3-A stage of Furuta, and group B of the Citardi staging system, the endoscopic approach alone resulted in higher recurrence rates.
Generally, there were no significant differences in recurrence rates according to clinical stage or surgical approach. Given the rate of delayed recurrence, follow-up of >3 years is required. Moreover, surgeons should always consider combined approaches to reduce the chances of recurrence.
[Show abstract][Hide abstract] ABSTRACT: Epiphora is usually caused by nasolacrimal duct obstruction. The nasolacrimal duct obstruction is related with facial trauma, other nasal or paranasal sinus diseases, or recurrent dacryocystitis. We describe a case of iatrogenic nasolacrimal duct obstruction that occurred secondary to midfacial autologous fat injection. In our case, mal positioned fat tissue was detected on the dacryocystogram to be present in the lacrimal sac and the nasolacrimal duct. They were safely removed during dacryocystorhinostomy.
[Show abstract][Hide abstract] ABSTRACT: In a previous publication we reviewed some of the most critical issues that affect the coloration and properties of cotton-based textiles [R. Shamey and T. Hussain, Textile Progress 37(1/2) (2005) pp. 1–84]. Today, polyester is still widely regarded as an inexpensive and uncomfortable fiber, but this image is slowly beginning to fade with the emergence of polyester luxury fibers. Polyester fibers currently comprise a commanding 77% share of the total worldwide production of the major synthetic fibers [F. Ayfi, 2003–2004 Handbook of Statistics on Man-Made/Synthetic Fibre/Yarn Industry. Part One, Fibre for Better Living, Association of Synthetic Fibre Industry, Mumbai, India, 2004, p. 177]. More than 95% of all polyester fibers manufactured today is based on polyethylene terephthalate. The dyeing properties of polyester fibers are strongly influenced by many of the processing conditions to which each fiber may be subjected during its manufacturing or in subsequent handling. Significant differences in properties of fibers can therefore arise due to their different processing history. Often, the root cause(s) of a problem in the dyed synthetic material can be traced as far back as the manufacturing process. In order to resolve many of the outstanding issues that commonly occur in the dyeing of this important fiber, a comprehensive review of the issues dealing with the manufacturing history as well as fiber processing conditions, including preparation, dyeing, and finishing is warranted. Although some of the underlying problems are related to common causes such as water quality and imperfections in machinery employed, others are specific to the treatment conditions of the fiber. Such conditions include preparation of ingredients, polymerization, fiber and filament processing conditions, as well as heat setting that can cause problems in the coloration of fiber. This summary analysis complements the rich pool of knowledge in this domain and addresses problems in the dyeing of polyester textile materials in various forms. An overview of various textile operations for polyester is given in the beginning. Then, various key steps and critical factors involved in the production of dyed polyester textile materials are described in detail and problems originating at each stage are summarized.
[Show abstract][Hide abstract] ABSTRACT: Before the introduction of transnasal endoscopic sinus surgery, transorbital approach with an external incision used to be one of the representative reconstructive surgical repairing method of blow out fracture. The important advantages of transnasal endoscopic technique are magnified direct visualization and easy accessibility to the medial orbital wall. Nasopore Forte® is a slowly absorbable material and provides excellent durability. The purpose of this study is to evaluate outcomes of endoscopic endonasal reduction (EER) of medial blow out fracture using Nasopore Forte®.
[Show abstract][Hide abstract] ABSTRACT: The textile and color industry has experienced many technological advances, which have resulted in improvements in quality and productivity. These advances have often accompanied reductions in personnel resources and a diminishing expertise base. Conversely, the resolution of problems in the global manufacturing complex increasingly go beyond the abilities of individual experts and can be very time consuming as the process is influenced by a large number of, often, interactive variables. The application of expert systems in the textile industry can help address many of these problems more effectively and economically. In this chapter, an overview of expert system technology is given and different types of expert systems including rule-based, fault trees, model-based, machine learning and hybrid approaches are described and compared. A brief review of system principles, strengths and shortcomings is given and the development strategy is described. Finally, various applications of expert systems in different sectors of the textile industry including product components (fibre, yarn and fabric), coloration and finishing as well as supply chain and management are highlighted and future trends are briefly portrayed.
[Show abstract][Hide abstract] ABSTRACT: Kawasaki diseases (KD) sometimes present themselves as cervical lymphadenitis or deep neck infection. These unusual Kawasaki diseases then lead to unnecessary antibiotic therapy or surgical intervention or delaying therapy. The purpose of this study is to determine clinical characteristics of early expressions of atypical Kawasaki diseases presenting as deep neck infection.
[Show abstract][Hide abstract] ABSTRACT: Electrospinning and its application in filtration area are worthwhile to look into as the large surface-to-volume ratio of nanoweb may affect the filtration efficiency by possibly giving more particle-capture sites. In this study, Nylon 6 is electrospun to produce ultra-fine nonwovens, and its characteristics as filter media are investigated. Electrospinning parameters including solution concentration, tip-to-collector distance, and the feed rate are changed in producing nonwovens in different fibre size distribution ranging from 50 to 150 nm in diameters. The solution concentration of 10 and 12 wt% produced the fibres with the average diameter of around 85 nm, where 15 wt% solution produced larger fibres with the average diameter of 121 nm. Finer fibres were able to process at longer tip-to-collector distance and at slower feed rate. The electrospun media that are processed at different spinning conditions are evaluated for its filtration efficiency and pressure drop. The electrospun nanofibre media shows the potential in application as HEPA and ULPA grade filter media, by comparing the filtering performance of nanoweb with the conventional melt-blown nonwoven media.
No preview · Article · Oct 2009 · Materials and Design
[Show abstract][Hide abstract] ABSTRACT: This paper presents the synthesis of metal complex acid dyes obtained from the reaction of o,o′-dihydroxyazo dyes and chromium and cobalt sulfate. The 1H-NMR, FT-IR and UV/Visible Spectrophotometer, TLC (Thin Layer Chromatography) and ICP (Ion Chromatography) of the intermediates and the metal complexes were studied and compared. Their properties such as dyeing, fastness and toxicity on nylon were also assessed according to standard methods.
No preview · Article · Oct 2009 · Fibers and Polymers