scholarly journals Evidence of bacterial biofilms in chronic rhinosinusitis: factors affecting and the impact on prognosis

Author(s):  
Vivek Gogia ◽  
Lakshmi Vaid ◽  
P. P. Singh ◽  
Rumpa Saha

<p class="abstract"><strong>Background:</strong> The aim of the study was to study the evidence of bacterial biofilms in chronic rhinosinusitis (CRS) and its effect on disease prognosis by correlating between symptom score, computed tomography (CT) score and endoscopy score.</p><p class="abstract"><strong>Methods:</strong> 40 samples of bacteriologically positive CRS patients were studied and data analyzed using SNOT-20 questionnaire, nasal endoscopy scores and CT grading. Functional endoscopic sinus surgery was done in all CRS patients to clear blockage and ensures patency of osteomeatal complex. Postoperative evaluation continued at 2 weeks, 1 month and 3 months. A comparison made between preoperative and postoperative SNOT-20 and endoscopy scores of patients with and without biofilms.  </p><p class="abstract"><strong>Results:</strong> Patients with biofilm forming bacteria have significantly poor preoperative and postoperative SNOT-20 score and endoscopy score as compared to bio-film negative patients; however the quality of life improved in both the groups.</p><p class="abstract"><strong>Conclusions:</strong> Biofilms play a potential role in postoperative prognosis of patients undergoing FESS. Further studies and research is required for assigning them as a definite proprietor for CRS.</p>

2014 ◽  
Vol 52 (4) ◽  
pp. 341-347
Author(s):  
Michael Katotomichelakis ◽  
Efthimios Simopoulos ◽  
Gregory Tripsianis ◽  
Nan Zhang ◽  
Gerasimos Danielides ◽  
...  

Background: The effects of smoking on quality of life (QoL) results in chronic rhinosinusitis (CRS) patients still remain a matter of debate. Objective: To explore the impact of smoking on QoL and determine how quantity of daily smoking and duration affect QoL results after endoscopic sinus surgery (ESS). Methodology: Patients with CRS were prospectively asked to evaluate their QoL pre- and after ESS. All subjects' QoL was evaluated by means of validated questionnaires either specific (Questionnaire of Olfactory Deficits), for assessing psychology (Zung Anxiety Scale, State -Trait Anxiety Inventory, Zung Depression Scale and Beck Depression Inventory) or generic (Short-Form-36). Smoking habits were expressed in pack-years. Results: No statistically significant differences were found in the pre-treatment scores in any of the questionnaires between smokers and non smokers. Post-operatively, all QoL questionnaires' results were significantly improved among both groups, although non smokers exhibited significantly greater improvement compared to smokers. There was a negative impact of the number of pack-years on the changes of QoL results; less improvement was observed as the number of pack-years was increasing. Conclusion: Although smoking did not improve preoperative QoL results and proved not to be a contra-indication factor for ESS regarding QoL, smokers presented worse treatment outcomes. Quantity and duration of smoking were significantly associated with worse postoperative results in all QoL questionnaires.


Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 975
Author(s):  
Antonio Copak ◽  
Vlatka Jirouš-Rajković ◽  
Nikola Španić ◽  
Josip Miklečić

Oriented strand board (OSB) is a commonly used structural wood-based panel for walls and roof siding, but recently the industry has become interested in OSB as a substrate for indoor and outdoor furniture. Particleboard is mainly used in furniture productions and has become popular as a construction material due to its numerous usage possibilities and inexpensive cost. Moisture is one of the most important factors affecting wood-based panel performance and the post-treatment conditions affected their affinity to water. When OSB and particleboard are used as substrates for coatings, their surface characteristics play an important role in determining the quality of the final product. Furthermore, roughness can significantly affect the interfacial phenomena such as adsorption, wetting, and adhesion which may have an impact on the coating performance. In this research particleboard and OSB panels were sanded, re-pressed and IR heated and the influence of surface treatments on hardness, roughness, wetting, water, and water vapour absorption was studied. Results showed that sanding improved the wetting of particleboard and OSB with water. Moreover, studied surface treatments increased water absorption and water penetration depth of OSB panels, and re-pressing had a positive effect on reducing the water vapour absorption of particleboard and OSB panels.


2021 ◽  
Vol 12 ◽  
pp. 215265672110038
Author(s):  
Markus Jukka Lilja ◽  
Anni Koskinen ◽  
Paula Virkkula ◽  
Seija Inkeri Vento ◽  
Jyri Myller ◽  
...  

Objectives The aim was to compare the control of chronic rhinosinusitis with nasal polyps (CRSwNP) after endoscopic sinus surgery (ESS), in patients with/without nonsteroidal anti-inflammatory drug exacerbated respiratory disease (NERD). Study Desing: A retrospective hospital-based sample of CRSwNP patients with/without NERD with follow-up. Setting Tertiary rhinology centers. Methods Electronic patient record data from 116 CRSwNP patients (46 with NERD and 70 without NERD) undergoing ESS during 2001–17 were studied. Mean follow-up time was 9.9 years (range 1.1–15.3). Endpoints reflecting uncontrolled CRSwNP were revision ESS, and need for rescue/advanced therapy (e.g. antibiotics, oral corticosteroids and/or biological therapy) during follow-up. NERD was variable of interest and gender, age, asthma, allergic rhinitis (AR), smoking, Lund-Mackay (LM) score of sinus computed tomography scans previous ESS and baseline total ethmoidectomy were used as covariates. Results Twenty-one (49.7%) NERD patients and 18 (25.7%) non-NERD patients underwent revision ESS within a mean ± SD of 4.3 ± 2.8 and 3.7 ± 2.6 years, respectively (p = .013, by Logrank test). In Cox´s regression models, NERD, female gender, young age, asthma, AR, previous ESS, and lack of total ethmoidectomy were associated with revision-ESS. In adjusted model, only the total ethmoidectomy predicted revision-free survival. In adjusted logistic regression model, there was an insignificant trend that NERD and LM score were associated with the need for rescue/advanced therapy in the follow-up. Conclusions Patients with NERD had higher risk of uncontrolled CRSwNP than patient group without NERD, as measured by revision ESS and/or need for rescue/advanced therapy in the follow-up. In addition, baseline total ethmoidectomy was associated with revision-free survival.


2021 ◽  
pp. 194589242098743
Author(s):  
Nyssa F. Farrell ◽  
Jess C. Mace ◽  
David A. Sauer ◽  
Andrew J. Thomas ◽  
Mathew Geltzeiler ◽  
...  

Background Chronic rhinosinusitis (CRS) is often differentiated by histopathologic phenotypes (eosinophilic versus neutrophilic), which may impact disease severity measures and outcomes. As such, it has been suggested that counts of cellular elements be included as part of a standard pathological report following endoscopic sinus surgery (ESS). Objectives This cross-sectional study evaluated associations of mucosal eosinophilia and neutrophilia with measures of quality-of-life (QoL) and olfactory function. Methods Patients with medically refractory CRS completed the SNOT-22 survey and Brief Smell Identification Test (BSIT) at enrollment. In addition, baseline Lund-Mackay computed tomography (CT) and Lund-Kennedy endoscopy scores were collected. Ethmoid mucosa was biopsied during ESS and reviewed using microscopy to quantify densest infiltrate of eosinophils or neutrophils per high-powered-field (HPF). Eosinophilic CRS (eCRS) and neutrophilic CRS (nCRS), both with and without nasal polyposis (NP), were compared across SNOT-22 and BSIT scores. Results 77/168 patients demonstrated mucosal eosinophilia (eCRS) while a total of 42/168 patients demonstrated mucosal neutrophilia (nCRS). After adjusting for polyp status, 35/168 had eCRSsNP, 42/168 eCRSwNP, 75/168 non-eCRSsNP, 16/168 non-eCRSwNP. Additionally, 22/161 were noted to have nCRSsNP, 20/161 nCRSwNP, 84/161 non-nCRSwNP, and 35/161 non-nCRSsNP. A small subset of patients demonstrated both eosinophilia and neutrophilia: 14 CRSwNP and 7 CRSsNP. When evaluating average Lund-Mackay Scores (LMS), significant differences existed between non-eCRSsNP and eCRSsNP (p = 0.006). However, after controlling for nasal polyps, eosinophilia did not significantly associate with differences in the Lund-Kennedy Score. Neutrophilia did not significantly associate with any changes in LMS or LKS after controlling for NP. Eosinophilic and neutrophilic histopathologic subtypes did not significantly associate with differences in baseline SNOT-22 or BSIT measures after controlling for NP. Conclusion Neither the presence of mucosal eosinophilia nor mucosal neutrophilia demonstrated significant associations with SNOT-22 quality-of-life or BSIT olfactory function scores when controlling for comorbid nasal polyposis.


Author(s):  
Руслан Юрьевич Павлов

Актуальность статьи связана с поиском новых способов и методов повышения эффективности борьбы с преступностью, оперативного раскрытия преступлений, а также с набирающим популярность среди криминалистов направлением «криминалистического мышления», овладение навыками которого будет способствовать наиболее полноценному и объективному расследованию уголовных дел. Проблемным в настоящее время является недостаточное качество следствия и необходимость повышения когнитивных способностей следователей (дознавателей). Задачей исследования являлось выявление факторов, влияющих на развитие и формирование криминалистического мышления следователей. Цель работы - провести анализ составных частей процесса становления следователя и особенностей его практической деятельности, влияющих на когнитивные способности с точки зрения криминалистики, путем изучения и сравнения имеющихся материалов по данной тематике. Анализу подвергнуты личностные качества следователя, особенности образовательного процесса и влияние опыта на результаты работы, а также факторы, сопутствующие следственной деятельности (организация труда, уровень стресса, нагрузки и т. д.). Результат проведенного исследования выражен в определении проблемных факторов, влияющих на формирование криминалистического мышления следователя (дознавателя) и возможных путей их преодоления, важности такого мышления, которое остается знанием, постоянно сориентированным в сторону практики. The relevance of the article is related to the search for new ways and methods to improve the effectiveness of the fight against crime, the prompt detection of crimes, as well as the trend of «forensic thinking», which is gaining popularity among criminalists, mastering the skills of which will contribute to the most complete and objective investigation of criminal cases. Problems at present are insufficient quality of investigation and the need to improve the cognitive abilities of investigators (inquirers). The task of the study was to identify factors that influence the development and formation of forensic thinking of investigators. The purpose of the work is- to analyze the components of the process of formation of an investigator and features of his practical activities affecting the cognitive abilities in terms of forensics by studying and comparing existing materials on this topic. The analysis is subjected to the personal qualities of an investigator, the peculiarities of the educational process and the impact of experience on the results of work, as well as factors associated with the investigative activity (organization of work, stress and stress levels, etc.). The result of the study is expressed in the definition of problematic factors affecting the formation of forensic thinking of an investigator (inquirer) and possible ways to overcome them, the importance of such thinking, which remains knowledge, constantly oriented towards practice


2018 ◽  
Vol 160 (5) ◽  
pp. 922-927
Author(s):  
Terence Fu ◽  
Daniel Lee ◽  
Jonathan Yip ◽  
Alisha Jamal ◽  
John M. Lee

Objective To evaluate the impact of untreated deviated nasal septum (DNS) on recalcitrant chronic rhinosinusitis (CRS) among patients undergoing revision endoscopic sinus surgery (ESS). Study Design Case-control study. Setting Tertiary academic center. Subjects and Methods We performed a retrospective review of 489 patients undergoing revision ESS for CRS at a tertiary academic center. Patients undergoing septoplasty were matched to nonseptoplasty controls based on age and sex. Preoperative Lund-Mackay score (LMS) was compared between cohorts. Linear regression was used to identify predictors of LMS and ostiomeatal complex (OMC) obstruction. Results Thirty-six matched pairs (72 patients) were selected for analysis: 36 undergoing septoplasty and revision ESS and 36 undergoing revision ESS alone. Compared with nonseptoplasty controls, the septoplasty group had a significantly higher average LMS (17.8 vs 14.6, P = .02) and a greater rate of OMC obstruction (89% vs 61%, P < .01). The septoplasty group also had significantly higher opacification scores in the maxillary (1.5 vs 1.2, P = .03) and posterior ethmoid (1.8 vs 1.4, P = .02) sinuses. On multivariable analysis, DNS was an independent predictor of LMS ( P = .02) and OMC obstruction ( P < .01). Conclusion Untreated DNS is associated with radiographic markers of CRS severity among patients undergoing revision ESS and may contribute to the multifactorial pathogenesis of persistent CRS.


2016 ◽  
Vol 54 (1) ◽  
pp. 75-79
Author(s):  
Rong-San Jiang ◽  
Kai-Li Liang ◽  
Chung-Han Hsin ◽  
Mao-Chang Sun

Background: The nose plays an important role in sleep quality. Very little is known about sleep problems in patients with chronic rhinosinusitis (CRS). The aim of this study was to investigate the impact of CRS on sleep-disordered breathing. Methodology: CRS patients who underwent functional endoscopic sinus surgery were collected between July 2010 and May 2015. Before surgery, they filled 20-item Sino-Nasal Outcome Test and Epworth Sleepiness Scale questionnaires, were asked about the severity of nasal obstruction, and received acoustic rhinometry, smell test, an endoscopic examination, sinus computed tomography, and a one-night polysomnography. Sleep quality was evaluated in these patients and was correlated with the severity of rhinosinusitis. Results: One hundred and thirty-nine CRS patients were enrolled in the study. Among them, 38.1% complained of daytime sleepiness, and this sleep problem was correlated with the symptom of nasal obstruction. Obstructive sleep apnea syndrome (OSAS) was diagnosed in 64.7% of the patients, but there was no correlation with the severity of rhinosinusitis. Nasal polyps did not worsen sleep problems in the CRS patients. Conclusions: This study showed that CRS patents had a high prevalence of OSAS, and worse OSAS in CRS patients was not correlated with the severity of rhinosinusitis.


Foods ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 181
Author(s):  
Carlos Álvarez ◽  
Leonard Koolman ◽  
Michael Whelan ◽  
Aidan Moloney

Tenderness, together with flavour, is the main quality trait that defines consumer acceptance of sheep meat. The factors affecting tenderness can be grouped as those influenced before slaughter, in the early post-mortem intervention and, finally, during the aging period. These factors have been extensively studied with respect to tenderness, but the impact of early post-mortem interventions and subsequent aging on the microbial quality of the final products has not been broadly reviewed to date. In this review, the authors summarize the most recent knowledge on lamb meat tenderness management and how such practices may impact the final meat quality, especially its microbial status. The impacts of pre-slaughter factors (age, sex, diet, genotype and transport) and post-mortem interventions (chilling regime, electrical stimulation, or hanging method), are described and comprehensively discussed.


2021 ◽  
Vol 10 (18) ◽  
pp. 4245
Author(s):  
Jörn Lötsch ◽  
Constantin A. Hintschich ◽  
Petros Petridis ◽  
Jürgen Pade ◽  
Thomas Hummel

Chronic rhinosinusitis (CRS) is often treated by functional endoscopic paranasal sinus surgery, which improves endoscopic parameters and quality of life, while olfactory function was suggested as a further criterion of treatment success. In a prospective cohort study, 37 parameters from four categories were recorded from 60 men and 98 women before and four months after endoscopic sinus surgery, including endoscopic measures of nasal anatomy/pathology, assessments of olfactory function, quality of life, and socio-demographic or concomitant conditions. Parameters containing relevant information about changes associated with surgery were examined using unsupervised and supervised methods, including machine-learning techniques for feature selection. The analyzed cohort included 52 men and 38 women. Changes in the endoscopic Lildholdt score allowed separation of baseline from postoperative data with a cross-validated accuracy of 85%. Further relevant information included primary nasal symptoms from SNOT-20 assessments, and self-assessments of olfactory function. Overall improvement in these relevant parameters was observed in 95% of patients. A ranked list of criteria was developed as a proposal to assess the outcome of functional endoscopic sinus surgery in CRS patients with nasal polyposis. Three different facets were captured, including the Lildholdt score as an endoscopic measure and, in addition, disease-specific quality of life and subjectively perceived olfactory function.


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