Classification of Tonsillitis. Quinsy. Complications of Acute Tonsillitis
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Biofilm Forming Bacteria in Adenoid Tissue in Upper Respiratory Tract Infections
Recent Advances in Otolaryngology and Rhinology Case Report Open Access | Research Biofilm Forming Bacteria in Adenoid Tissue in Upper Respiratory Tract Infections Mariana Pérez1*, Ariana García1, Jacqueline Alvarado1, Ligia Acosta1, Yanet Bastidas1, Noraima Arrieta1 and Adriana Lucich1 1Otolaryngology Service Hospital de niños” JM de los Ríos” Caracas, Venezuela Abstract Introduction: Biofilm formation by bacteria is studied as one of the predisposing factors for chronicity and recurrence of upper respiratory tract infections. Objective: To determine the presence of Biofilm producing bacteria in patients with adenoid hypertrophy or adenoiditis. Methodology: A prospective and descriptive field study. The population consisted of 102 patients with criteria for adenoidectomy for obstructive adenoid hypertrophy or recurrent adenoiditis. Bacterial culture was performed, and specialized adenoid tissue samples were taken and quantified to determine by spectrophotometry the ability of Biofilm production. Five out of 10 samples were processed with electronic microscopy. Results: A The mean age was of 5.16 years, there were no significant sex predominance (male 52.94 %). There was bacterial growth in the 69.60% of the cultures, 80.39% for recurrent Adenoiditis and 19.61% for adenoid Hypertrophy, Staphylococcus Aureus predominating in 32.50% (39 samples). 88.37 % were producing bacteria Biofilm. 42.25% in Adenoiditis showed strong biofilm production, compared with samples from patients with adenoid hypertrophy where only 5.65 % were producers. The correlation was performed with electronic microscopy in 10 samples with 30 % false negatives. Conclusions: The adenoid tissue serves as a reservoir for biofilm producing bacteria, being the cause of recurrent infections in upper respiratory tract. Therapeutic strategies should be established to prevent biofilm formation in the early stages and to try to stop bacterial binding to respiratory mucosa. -
Communicable Diseases of Children
15 Communicable Diseases of Children Dennis 1. Baumgardner The communicable diseases of childhood are a source of signif from these criteria, the history, physical examination, and ap icant disruption for the family and a particular challenge to the propriate laboratory studies often define one of several other family physician. Although most of these illnesses are self more specific respiratory syndromes as summarized in limited and without significant sequelae, the socioeconomic Table 15.1.3-10 impact due to time lost from school (and work), costs of medi Key points to recall are that significant pharyngitis is not cal visits and remedies, and parental anxiety are enormous. present with most colds, that most colds are 3- to 7-day Distressed parents must be treated with sensitivity, patience, illnesses (except for lingering cough and coryza for up to and respect for their judgment, as they have often agonized for 2 weeks), and that abrupt worsening of symptoms or develop hours prior to calling the physician. They are usually greatly ment of high fever mandates prompt reevaluation. Tonsillo reassured when given a specific diagnosis and an explanation of pharyngitis (hemolytic streptococci, Epstein-Barr virus, the natural history of even the most minor syndrome. adenovirus, Corynebacterium) usually involves a sore throat, It is essential to promptly differentiate serious from benign fever, erythema of the tonsils and pharynx with swelling or disorders (e.g., acute epiglottitis versus spasmodic croup), to edema, and often headache and cervical adenitis. In addition to recognize serious complications of common illnesses (e.g., var the entities listed in Table 15.1, colds must also be differenti icella encephalitis), and to recognize febrile viral syndromes ated from allergic rhinitis, asthma, nasal or respiratory tree (e.g., herpangina), thereby avoiding antibiotic misuse. -
Tonsillar Crypts and Bacterial Invasion of Tonsils, a Pilot Study R Mal, a Oluwasanmi, J Mitchard
The Internet Journal of Otorhinolaryngology ISPUB.COM Volume 9 Number 2 Tonsillar crypts and bacterial invasion of tonsils, a pilot study R Mal, A Oluwasanmi, J Mitchard Citation R Mal, A Oluwasanmi, J Mitchard. Tonsillar crypts and bacterial invasion of tonsils, a pilot study. The Internet Journal of Otorhinolaryngology. 2008 Volume 9 Number 2. Abstract Conclusion: We found no clear correlation between tonsillitis and a defect in the tonsillar crypt epithelium. Tonsillitis might be due to immunological differences of subjects rather than a lack of integrity of the crypt epithelium.Further study with larger sample size and normal control is suggested.Objective: To investigate histologically if a lack of protection of the deep lymphoid tissue in tonsillar crypts by an intact epithelial covering is an aetiological factor for tonsillitis.Method: A prospective histological study of the tonsillar crypt epithelium by immunostaining for cytokeratin in 34 consecutive patients undergoing tonsillectomy either for tonsillitis or tonsillar hypertrophy without infection (17 patients in each group).Results: Discontinuity in the epithelium was found in 70.6% of the groups of patients with tonsillitis and in 35.3% of the groups of patients with tonsillar hypertrophy. This is of borderline significance. INTRODUCTION infection apparently occurrs through the micropore of the The association of lymphoid tissue with protective crypt epithelium. A.Jacobi in his presidential address in epithelium is widespread, eg skin, upper aerodigestive tract, 1906: “The tonsil as a portal of microbic and toxic invasion” gut, bronchi, urinary tract. The function of the palatine stated: “ A surface lesion must always be supposed to exist tonsils, an example of an organised mucosa-associated when a living germ or toxin is to find access.----- Stoher has lymphoid tissue, is to sample the environmental antigen and shown small gaps between the normal epithelia of the participate with the initiation and maintenance of the local surface of the tonsil”. -
Adenoiditis and Otitis Media with Effusion: Recent Physio-Pathological and Terapeutic Acquisition
Acta Medica Mediterranea, 2011, 27: 129 ADENOIDITIS AND OTITIS MEDIA WITH EFFUSION: RECENT PHYSIO-PATHOLOGICAL AND TERAPEUTIC ACQUISITION SALVATORE FERLITO, SEBASTIANO NANÈ, CATERINA GRILLO, MARISA MAUGERI, SALVATORE COCUZZA, CALOGERO GRILLO Università degli Studi di Catania - Dipartimento di Specialità Medico-Chirurgiche - Clinica Otorinolaringoiatrica (Direttore: Prof. A. Serra) [Adenoidite e otite media effusiva: recenti acquisizioni fisio-patologiche e terapeutiche] SUMMARY RIASSUNTO Otitis media with effusion (OME) deserves special atten- L’otite media effusiva (OME) merita particolare atten- tion because of its diffusion, the anatomical and functional zione per la diffusione, le alterazioni anatomo-funzionali e le abnormalities and the complications which may result. complicanze cui può dare luogo. The literature has been widely supported for a long time In letteratura è stato ampiamente sostenuto da tempo il the role of hypertrophy and/or adenoid inflammation in the ruolo della ipertrofia e/o delle flogosi adenoidee nell’insorgen- development of OME. za di OME. Although several clinical studies have established the Anche se diversi lavori clinici hanno constatato l’effica- effectiveness of adenoidectomy in the treatment of OME, there cia dell’adenoidectomia nel trattamento dell’OME, le opinioni are discordant opinions about. sono discordi. The fundamental hypothesis that motivates this study is L’ipotesi fondamentale che motiva questo studio è che that the OME in children is demonstration of subacute or l’OME in età pediatrica è -
Chronic Rhinosinusitis in Children
3/18/2014 Chronic Rhinosinusitis in Children Hassan H. Ramadan, M.D., MSc., FACS West Virginia University, Morgantown, WV. Fourth Annual ENT for the PA-C | April 24-27, 2014 | Pittsburgh, PA Disclosures • None Fourth Annual ENT for the PA-C | April 24-27, 2014 | Pittsburgh, PA Learning Objectives • Differentiate between sinusitis in children and common cold or allergy • Develop an appropriate plan of medical management of a child with sinusitis. • Recognize when referral for surgery may be necessary and what the surgical options are for children. Fourth Annual ENT for the PA-C | April 24-27, 2014 | Pittsburgh, PA 1 3/18/2014 Chronic Rhinosinusitis: Clinical Definition • Inflammation of the nose and paranasal sinuses characterized by 2 or more symptoms one of which should be either nasal blockage/ obstruction/congestion or nasal discharge (anterior/posterior nasal drip): – +cough – +facial pain/pressure • and either: – Endoscopic signs of disease and/or relevant CT changes • Duration: >12 weeks without resolution Health Impact of Chronic Recurrent Rhinosinusitis in Children CHQ‐PF50 results for Role/ Social‐ Physical Rhinosinusitis group had lower scores than all other diseases (p<0.05) Cunningham MJ, AOHNS 2000 Rhinosinusitis and the Common Cold MRI Study • Sixty (60) children recruited within 96 hrs of onset of URI sxs between Sept‐ Dec 1999 in Finland. • Average age= 5.7 yrs (range= 4‐7 yrs). • Underwent an MRI and symptoms were recorded. Kristo A et al. Pediatrics 2003;111:e586–e589. 2 3/18/2014 Rhinosinusitis and the Common Cold MRI Study Normal Minor Abnormality Major Abnormality Rhinosinusitis and the Common Cold MRI Study N=60 26 of the children with major abnormalities had a repeat MRI after 2 weeks with a significant improvement in MRI findings although 2/3rds still had abnormalities. -
Role of Biofilms in Children with Chronic Adenoiditis and Middle Ear
Journal of Clinical Medicine Review Role of Biofilms in Children with Chronic Adenoiditis and Middle Ear Disease Sara Torretta 1,2,* , Lorenzo Drago 3,4 , Paola Marchisio 1,5 , Tullio Ibba 1 and Lorenzo Pignataro 1,2 1 Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Policlinico of Milan, Via Francesco Sforza, 35, 20122 Milano, Italy; [email protected] (P.M.); [email protected] (T.I.); [email protected] (L.P.) 2 Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy 3 Clinical Chemistry and Microbiology Laboratory, IRCCS Galeazzi Institute and LITA Clinical Microbiology Laboratory, 20161 Milano, Italy; [email protected] 4 Department of Clinical Science, University of Milan, 20122 Milan, Italy 5 Department of Pathophysiology and Transplantation, University of Milan, 20122 Milan, Italy * Correspondence: [email protected]; Tel.: +39-02-5503-2563 Received: 21 March 2019; Accepted: 10 May 2019; Published: 13 May 2019 Abstract: Chronic adenoiditis occurs frequently in children, and it is complicated by the subsequent development of recurrent or chronic middle ear diseases, such as recurrent acute otitis media, persistent otitis media with effusion and chronic otitis media, which may predispose a child to long-term functional sequalae and auditory impairment. Children with chronic adenoidal disease who fail to respond to traditional antibiotic therapy are usually candidates for surgery under general anaesthesia. It has been suggested that the ineffectiveness of antibiotic therapy in children with chronic adenoiditis is partially related to nasopharyngeal bacterial biofilms, which play a role in the development of chronic nasopharyngeal inflammation due to chronic adenoiditis, which is possibly associated with chronic or recurrent middle ear disease. -
Molecular Mapping to Species Level of the Tonsillar Crypt Microbiota Associated with Health and Recurrent Tonsillitis
Molecular Mapping to Species Level of the Tonsillar Crypt Microbiota Associated with Health and Recurrent Tonsillitis Anders Jensen1, Helena Fago¨ -Olsen2, Christian Hjort Sørensen2, Mogens Kilian1* 1 Department of Biomedicine, Faculty of Health Sciences, Aarhus University, Aarhus, Denmark, 2 Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Copenhagen University Hospital Gentofte, Copenhagen, Denmark Abstract The human palatine tonsils, which belong to the central antigen handling sites of the mucosal immune system, are frequently affected by acute and recurrent infections. This study compared the microbiota of the tonsillar crypts in children and adults affected by recurrent tonsillitis with that of healthy adults and children with tonsillar hyperplasia. An in-depth 16S rRNA gene based pyrosequencing approach combined with a novel strategy that included phylogenetic analysis and detection of species-specific sequence signatures enabled identification of the major part of the microbiota to species level. A complex microbiota consisting of between 42 and 110 taxa was demonstrated in both children and adults. This included a core microbiome of 12 abundant genera found in all samples regardless of age and health status. Yet, Haemophilus influenzae, Neisseria species, and Streptococcus pneumoniae were almost exclusively detected in children. In contrast, Streptococcus pseudopneumoniae was present in all samples. Obligate anaerobes like Porphyromonas, Prevotella, and Fusobacterium were abundantly present in children, but the species diversity of Porphyromonas and Prevotella was larger in adults and included species that are considered putative pathogens in periodontal diseases, i.e. Porphyromonas gingivalis, Porphyromonas endodontalis, and Tannerella forsythia. Unifrac analysis showed that recurrent tonsillitis is associated with a shift in the microbiota of the tonsillar crypts. -
Anatomy, Embryology & Histology
Problem 7 – Unit 6 – (Anatomy, embryology & histology): thymus, tonsils and lymph nodes - Lymphoid organs: Primary lymphoid organs (where lymphocytes are produced and mature): Bone marrow (B-lymphocytes). Thymus gland (immature T-lymphocytes migrate to it for proliferation and maturation): which is present in children (in the superior mediastinum behind the sternum → consisting of right and left lobes). The thymus shrinks in adults and is converted to fatty tissue. Secondary lymphoid organs (where naïve lymphocytes get exposed to antigens): Spleen. Lymph nodes. Mucosal-associated lymphoid tissue (MALT). Tonsils. - What is Waldeyer’s ring? of protective lymphoid tissue in the upper ends of )دائرة غير مكتملة( It is an interrupted circle the respiratory and alimentary tracts consisting of: Pharyngeal tonsils: which are located in the nasopharynx and also known as adenoids. Tubal tonsils: around the openings of the auditory tube. Palatine tonsils: located on either side of oropharynx → they lie in the tonsillar sinus which is formed between the palatoglossal and the palatopharyngeal arches. Lingual tonsil: located under the mucosa of the posterior third of the tongue. ===================================================================================== THYMUS - How does it look? Note: there is an active growth of the gland during childhood but it starts involution (shrinkage) at puberty due to the production of steroid hormones (ACTH, adrenal and sex hormones). During adulthood, there will be atrophy and it is replaced by fat. - Where does it develop from (figure): It develops from the 3rd pharyngeal pouch (where the inferior parathyroid glands also develop). In some books, the 4th pharyngeal pouch is also mentioned as an origin of development for the thymus gland in addition to the 3rd pharyngeal pouch. -
General Anatomy of Gastro-Intestinal System
General Anatomy of Gastro-IntesTinal System The teeth, Oral cavity, Tongue, Salivary glands, Pharynx. Their vessels and innervation IKIvo Klepáček Primordium of the alimentary canal (GastroInTestinal Canal) GIT devel– systema gastropulmonale – it develops from the embryonal intestine (entoderm) ; lower respiratory structurses are splitted from intewstine as a tracheobronchial pouch Ventral (head) intestine part is added to ectodermal pouch called stomodeum, caudal part of the intestine is added to ectodermal pouch called proctodeum Division of the alimentary tract: 1) oral ectodermal segment 2) main entodermal segment 3) caudal ectodermal segment děivision of the main segment: ventral gut (foregut – to biliary duct opening) middle gut (midgut – to 2/3 colon) IKdorsal gut (hindgut – to upper part of the anal canal Digestive System: Oral cavity (ectodermal origin) The gut and ist derivatives (entodermal origin) is devided in four sections: 1. Pharyngeal gut or pharynx 2. Foregut - esophagus, stomach, ¼ of duodenum, liver and gallblader, pancreas 3. Midgut – ¾ of duodenum, jejujnum, ilium, colon caecum, colon ascendens and 2/3 of colon transversum 4. Hindgut – 1/3 of colon transversum, colon descendens, colon sigmoideum, colon rectum, IKcanalis analis IK Alimentary tube (canal) - general structure – tunica mucosa (mucous membrane 1 • epithelium • lamina propria mucosae (lymph tissue) • lamina muscularis mucosae – tunica submucosa (submucous layer) – vessels, erves (plexus submucosus Meissneri) – tunica muscularis externa 7 (outer -
TREATMENT of VIRAL RESPIRATORY INFECTIONS Erik
TREATMENT OF VIRAL RESPIRATORY INFECTIONS Erik DE CLERCQ Rega Institute for Medical Research, K.U.Leuven B-3000 Leuven, Belgium RESPIRATORY TRACT VIRUS INFECTIONS ADENOVIRIDAE : Adenoviruses HERPESVIRIDAE : Cytomegalovirus, Varicella-zoster virus PICORNAVIRIDAE : Enteroviruses (Coxsackie B, ECHO) Rhinoviruses CORONAVIRIDAE : Coronaviruses ORTHOMYXOVIRIDAE : Influenza (A, B, C) viruses PARAMYXOVIRIDAE : Parainfluenza viruses Respiratory syncytial virus “SARS (Severe Acute Respiratory Disease) virus” RESPIRATORY TRACT VIRAL DISEASES Adenoviruses: Adenoiditis, Pharyngitis, Bronchopneumonitis Cytomegalovirus: Interstitial pneumonitis Varicella-zoster virus: Pneumonitis Enteroviruses (Coxsackie B, ECHO): URTI (Upper Respiratory Tract Infections) Rhinoviruses: Common cold Coronaviruses: Common cold Influenza viruses: Influenza (upper and lower respiratory tract infections) Parainfluenza viruses: Parainfluenza (laryngitis, tracheitis) Respiratory syncytial virus: Bronchopneumonitis INFLUENZA VIRUS Influenza virus Electron micrographs of purified influenza virions. Hemagglutinin (HA ) and neuraminidase (NA) can be seen on the envelope of viral particles. Ribonucleoproteins (RNPs) are located inside the virions. http://www.virology.net/Big_Virology/BVRNAortho.html Influenza Layne et al., Science 293: 1729 (2001) NA (neuraminidase) Lipid bilayer M1 (membrane protein) M2 (ion channel) RNPs (RNA, NP) Transcriptase complex (PB1, PB2 and PA) HA (hemagglutinin) Simplified representation of the influenza virion showing the neuraminidase (NA) glycoprotein, -
Pharyngeal Pouches • Development of External Ear • Development of Tongue • Development of Thyroid Gland L.Moss-Salentijn • Pharyngeal Pouches
Outline • Pharyngeal grooves Pharyngeal pouches • Development of external ear • Development of tongue • Development of thyroid gland L.Moss-Salentijn • Pharyngeal pouches Pharyngeal pouch evolution Pouches lined with foregut endoderm. Grooves lined with ectoderm. Fate of pharyngeal grooves 2-4 Fate of 1st pharyngeal groove and pouch Covered by rapid outgrowth of 2nd arch “operculum.” 1 First groove external auditory meatus First pouch pharyngotympanic External ear receives tube contributions from arches 1 and 2 External ear development by merging of 6 auricular hillocks External ear and tongue development require merging: the elimination of a groove between facial processes by differential growth. 2 Endodermal swellings on arches 1-4 contribute to the tongue Merging 1. Paired lingual swellings and single median tuberculum impar of lingual 2. Single median copula swellings 3-4. Combined median hypobranchial eminence Thyroid gland development. Thyroglossal duct Descent of developing thyroid. Thyroglossal tract is no longer intact, allowing gland to move. Adult thyroid gland Thyroid gland Arrowheads: parafollicular cells. Follicular cells (a). Thyroglobulin in thyroid follicles. Arrowheads: capillaries. 3 Pharyngeal pouch at 4 weeks Epithelio-mesenchymal Derivatives of dorsal and ventral interactions. parts of pharyngeal pouches Specific transcription factors. Second pharyngeal pouch,ventral: Palatine tonsil development of palatine tonsil • Third month: subepithelial infiltration of lymphoid tissue: Crypt in transverse tonsillar stroma section. -
Adenoidal Disease and Chronic Rhinosinusitis in Children—Is There a Link?
Journal of Clinical Medicine Review Adenoidal Disease and Chronic Rhinosinusitis in Children—Is There a Link? Antonio Mario Bulfamante 1,* , Alberto Maria Saibene 2 , Giovanni Felisati 1, Cecilia Rosso 1 and Carlotta Pipolo 1 1 Otorhinolaryngology Unit, Department of Health Sciences, San Paolo Hospital, Università degli Studi di Milano, 20142 Milan, Italy; [email protected] (G.F.); [email protected] (C.R.); [email protected] (C.P.) 2 Otorhinolaryngology Unit, San Paolo Hospital, 20142 Milan, Italy; [email protected] * Correspondence: [email protected]; Tel.: +39-02-8184-4249; Fax: +39-02-5032-3166 Received: 31 July 2019; Accepted: 18 September 2019; Published: 23 September 2019 Abstract: Adenoid hypertrophy (AH) is an extremely common condition in the pediatric and adolescent populations that can lead to various medical conditions, including acute rhinosusitis, with a percentage of these progressing to chronic rhinosinusitis (CRS). The relationship between AH and pediatric CRS has been extensively studied over the past few years and clinical consensus on the treatment has now been reached, allowing this treatment to become the preferred clinical practice. The purpose of this study is to review existing literature and data on the relationship between AH and CRS and the options for treatment. A systematic literature review was performed using a search line for “(Adenoiditis or Adenoid Hypertrophy) and Sinusitis and (Pediatric or Children)”. At the end of the evaluation, 36 complete texts were analyzed, 17 of which were considered eligible for the final study, dating from 1997 to 2018. The total population of children assessed in the various studies was of 2371.