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İşlek A, Şimşek S. A silent, trapped guest in the maxillary sinus: Oestrus ovis myiasis with unusual presentation (with CARE guideline). Eur Ann Otorhinolaryngol Head Neck Dis 2021; 139:289-291. [PMID: 34649828 DOI: 10.1016/j.anorl.2021.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/13/2021] [Accepted: 08/25/2021] [Indexed: 11/03/2022]
Abstract
INTRODUCTION A sheep bot fly, Oestrus ovis, is an obligate parasite that is found worldwide, especially widespread in the Mediterranean areas and Middle Eastern. Interestingly, in this report, a case with an L3 larva trapped in the human maxillary sinus with other stage larvae is presented. CASE SUMMARY A 32-year-old female patient has no symptoms until the larva is expelled by sneezing. Endoscopic examination was normal on admission. Paranasal sinus computed tomography (CT) revealed left maxillary sinus soft tissue density. Uncinectomy and middle meatal antrostomy was performed to remove the infection and larvae. DISCUSSION Human ophthalmic and nasopharyngeal myiasis have been documented but asymptomatic maxillary sinus myiasis is unusual and not reported. Due to changes in environmental factors, this atypical infection may occur with an unexpected presentation.
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Affiliation(s)
- A İşlek
- Nusaybin State Hospital, Otolaryngology-Head & Neck Surgery Clinic, Mardin, Turkey.
| | - S Şimşek
- Nusaybin State Hospital, Radiology Clinic, Mardin, Turkey
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2
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Patel RM, Pinto JM. Olfaction: anatomy, physiology, and disease. Clin Anat 2013; 27:54-60. [PMID: 24272785 DOI: 10.1002/ca.22338] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 10/02/2013] [Indexed: 11/08/2022]
Abstract
The olfactory system is an essential part of human physiology, with a rich evolutionary history. Although humans are less dependent on chemosensory input than are other mammals (Niimura 2009, Hum. Genomics 4:107-118), olfactory function still plays a critical role in health and behavior. The detection of hazards in the environment, generating feelings of pleasure, promoting adequate nutrition, influencing sexuality, and maintenance of mood are described roles of the olfactory system, while other novel functions are being elucidated. A growing body of evidence has implicated a role for olfaction in such diverse physiologic processes as kin recognition and mating (Jacob et al. 2002a, Nat. Genet. 30:175-179; Horth 2007, Genomics 90:159-175; Havlicek and Roberts 2009, Psychoneuroendocrinology 34:497-512), pheromone detection (Jacob et al. 200b, Horm. Behav. 42:274-283; Wyart et al. 2007, J. Neurosci. 27:1261-1265), mother-infant bonding (Doucet et al. 2009, PLoS One 4:e7579), food preferences (Mennella et al. 2001, Pediatrics 107:E88), central nervous system physiology (Welge-Lüssen 2009, B-ENT 5:129-132), and even longevity (Murphy 2009, JAMA 288:2307-2312). The olfactory system, although phylogenetically ancient, has historically received less attention than other special senses, perhaps due to challenges related to its study in humans. In this article, we review the anatomic pathways of olfaction, from peripheral nasal airflow leading to odorant detection, to epithelial recognition of these odorants and related signal transduction, and finally to central processing. Olfactory dysfunction, which can be defined as conductive, sensorineural, or central (typically related to neurodegenerative disorders), is a clinically significant problem, with a high burden on quality of life that is likely to grow in prevalence due to demographic shifts and increased environmental exposures.
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Affiliation(s)
- Riddhi M Patel
- Department of Surgery, Section of Otolaryngology-Head and Neck Surgery, The University of Chicago, Chicago, Illinois
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Baroody FM, Detineo M, Naclerio RM. Unilateral nasal allergic reactions increase bilateral sinus eosinophil infiltration. J Appl Physiol (1985) 2013; 115:1262-7. [PMID: 23970539 DOI: 10.1152/japplphysiol.00547.2013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We have previously shown that unilateral nasal challenge with antigen causes an increase in the number of eosinophils in the ipsilateral maxillary sinus. Here we aimed to determine whether there was an eosinophil response in the contralateral maxillary sinus after unilateral nasal challenge with antigen. Twenty subjects with a history of seasonal allergic rhinitis and a positive nasal challenge to ragweed or grass allergens were studied outside of their allergy season. Catheters were placed in both maxillary sinuses and the subjects were challenged with antigen via the left nostril. The subjects recorded nasal symptoms before and after each allergen challenge and hourly for 8 h afterward. We performed nasal lavages of the nose and sinuses at the same time as symptoms were recorded. The lavages were analyzed for the number of eosinophils and levels of albumin. Subjects showed a symptomatic response to challenge accompanied by an influx of eosinophils into the nose and increased vascular permeability. The number of eosinophils increased in both maxillary sinuses. The total change from diluent in eosinophils during the late phase response was higher in the ipsilateral maxillary sinus (median = 8,505; range = 0-100,360) compared with the contralateral sinus (median = 1,596; range = -13,527-93,373; P = 0.03). We conclude that eosinophils increase in both maxillary sinuses after unilateral nasal challenge. We speculate that a central neurologic reflex initiated in the nose by the nasal challenge contributes to the bilateral eosinophil response in the maxillary sinuses. We further speculate that, since there are more eosinophils in the ipsilateral compared with the contralateral maxillary sinus, there is also an axonal reflex into the ipsilateral maxillary sinus that contributed to the eosinophil response.
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Affiliation(s)
- Fuad M Baroody
- Section of Otolaryngology-Head and Neck Surgery, The University of Chicago Medical Center and The Pritzker School of Medicine, The University of Chicago, Illinois
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Baroody FM, Mucha SM, deTineo M, Naclerio RM. Evidence of Maxillary Sinus Inflammation in Seasonal Allergic Rhinitis. Otolaryngol Head Neck Surg 2012; 146:880-6. [DOI: 10.1177/0194599811435972] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective. Allergic rhinitis has been frequently associated with both acute and chronic sinusitis. Previous studies have shown an influx of eosinophils into the maxillary sinus after nasal challenge with allergen. The objective of this study was to determine, in humans, if the development of seasonal allergic inflammation, secondary to natural allergen exposure, leads to similar inflammation within the maxillary sinus. Study Design. Prospective, longitudinal study. Setting. Academic medical center and research laboratory. Subjects and Methods. Eighteen subjects were evaluated in and out of the ragweed allergy season using subjective measures (nasal symptoms, quality of life), nasal secretory response to methacholine challenge, and evaluation of biomarkers in nasal and sinus lavages. Results. The subjects became symptomatic during the season and reported worse quality of life and increased nasal reactivity to methacholine. The total number of eosinophils obtained by nasal lavage during the season (median= 35,691) was significantly higher compared with out of season (median = 2811, P ≤ .02). Similarly, there were significantly more eosinophils, albeit to a lesser magnitude, in the maxillary sinus during the season (median = 4248) compared with the out-of-season samples (median = 370, P ≤ .02). Conclusion. The authors provide evidence that natural exposure to pollen during an individual’s allergy season leads to both nasal and sinus inflammation, strengthening the association between allergic rhinitis and sinusitis. The mechanism of this inflammatory response needs to be elucidated.
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Affiliation(s)
- Fuad M. Baroody
- Section of Otolaryngology–Head and Neck Surgery, The Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Samantha M. Mucha
- Section of Otolaryngology–Head and Neck Surgery, The Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Marcy deTineo
- Section of Otolaryngology–Head and Neck Surgery, The Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Robert M. Naclerio
- Section of Otolaryngology–Head and Neck Surgery, The Pritzker School of Medicine, University of Chicago, Chicago, Illinois, USA
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Abstract
Olfaction represents an ancient, evolutionarily critical physiologic system. In humans, chemosensation mediates safety, nutrition, sensation of pleasure, and general well-being. Factors that affect human olfaction included structural aspects of the nasal cavity that can modulate airflow and therefore odorant access to the olfactory cleft, and inflammatory disease, which can affect both airflow as well as olfactory nerve function. After signals are generated, olfactory information is processed and coded in the olfactory bulb and disseminated to several areas in the brain. The discovery of olfactory receptors by Axel and Buck sparked greater understanding of the molecular basis of olfaction. However, the precise mechanisms used by this system are still under great scrutiny due to the complexity of understanding how an enormous number of chemically diverse odorant molecules are coded into signals understood by the brain. Additionally, it has been challenging to dissect olfactory sensation due to the multiple areas of areas of the brain that receive and modulate this information. Consequently, our knowledge of olfactory dysfunction in humans remains primitive. Aging represents the major cause of loss of smell, although a number of clinical and environmental factors are thought to affect chemosensory function. Treatment options focus on reducing sinonasal inflammation when present, ruling out other treatable causes, and counseling patients on safety measures.
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Sivam A, Jeswani S, Reder L, Wang J, DeTineo M, Taxy J, Baroody FM, Naclerio RM, Pinto JM. Olfactory Cleft Inflammation is Present in Seasonal Allergic Rhinitis and is Reduced with Intranasal Steroids. Am J Rhinol Allergy 2010; 24:286-90. [DOI: 10.2500/ajra.2010.24.3478] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background Allergic rhinitis (AR) is commonly associated with olfactory loss, although the mechanism is not well studied. This study was designed to determine the effect of mometasone furoate (MF) on olfactory loss in seasonal AR (SAR) and study its effect on inflammation in the olfactory region. Methods We performed a randomized, double-blind, placebo-controlled, parallel clinical trial in 17 patients with SAR who had symptoms of impaired olfaction. Subjects received MF or placebo for 2 weeks during their allergy season. Before and after treatment, we measured nasal peak inspiratory flow (NPIF), chemosensory quality of life, and objective olfactory function (the University of Pennsylvania Smell Identification Test). Additionally, nasal cytology samples were obtained from each visit, and a unilateral endoscopic biopsy specimen of the olfactory epithelium was obtained at the end of the study and scored for inflammation. Results Treatment with MF was associated with improved nasal symptoms (p < 0.015), NPIF (p < 0.04), reduced nasal inflammation (p < 0.05), and chemosensory-specific quality of life (p < 0.03). Histological analysis of the olfactory region reveals fewer eosinophils in the MF group when compared with placebo (p < 0.012). We found no improvement in objective olfactory function (p > 0.05). Conclusion The use of MF in SAR is associated with reduced eosinophilic inflammation in the olfactory region and improved symptoms of AR. The presence of eosinophils in the olfactory area in SAR may indicate a direct, deleterious effect of inflammation on olfactory epithelium in this disease. In this study we show that inflammation in SAR can affect the olfactory cleft, implicating a direct role for allergic inflammation in smell loss. Treatment with intranasal steroids is associated with decreased inflammation in the olfactory region in humans. This treatment is also associated with improved olfactory quality of life.
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Affiliation(s)
- Anita Sivam
- Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, Chicago, Illinois
| | - Seema Jeswani
- Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, Chicago, Illinois
| | - Lindsay Reder
- Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, Chicago, Illinois
| | - Jianghong Wang
- Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, Chicago, Illinois
| | - Marcella DeTineo
- Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, Chicago, Illinois
| | - Jerome Taxy
- Department of Pathology, The University of Chicago, Chicago, Illinois
| | - Fuad M. Baroody
- Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, Chicago, Illinois
| | - Robert M. Naclerio
- Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, Chicago, Illinois
| | - Jayant M. Pinto
- Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, Chicago, Illinois
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7
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Baroody FM, Mucha SM, deTineo M, Naclerio RM. Nasal challenge with allergen leads to maxillary sinus inflammation. J Allergy Clin Immunol 2008; 121:1126-1132.e7. [DOI: 10.1016/j.jaci.2008.02.010] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2007] [Revised: 01/29/2008] [Accepted: 02/12/2008] [Indexed: 11/26/2022]
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Zhou B, Qi ZD, Xiao Q, Dong JX, Zhang YZ, Liu Y. Interaction of loratadine with serum albumins studied by fluorescence quenching method. ACTA ACUST UNITED AC 2007; 70:743-7. [PMID: 17482267 DOI: 10.1016/j.jbbm.2007.04.001] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2007] [Revised: 03/11/2007] [Accepted: 04/04/2007] [Indexed: 11/29/2022]
Abstract
The interactions between loratadine and bovine serum albumin (BSA) and human serum albumin (HSA) were studied using tryptophan fluorescence quenching method. The fluorescence intensity of the two serum albumins could be quenched 70% at the molar ratio [loratadine]:[BSA (or HSA)]=10:1. In the linear range (0-50 micromol L(-1)) quenching constants were calculated using Stern-Volmer equation. Temperature in the range 298 K-310 K had a significant effect (p<0.05) on the two serum albumins through ANOVA analysis and t-test. Furthermore the conformation changes in the interactions were studied using FTIR spectroscopy.
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Affiliation(s)
- Bo Zhou
- Department of Chemical Biology, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, PR China
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9
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Abstract
The nasal mucosa is a complex tissue that interacts with its environment and effects local and systemic changes. Receptors in the nose receive signals from stimuli, and respond locally through afferent, nociceptive, type C neurons to elicit nasonasal reflex responses mediated via cholinergic neurons. This efferent limb leads to responses in the nose (eg, rhinorrhea, glandular hyperplasia, hypersecretion with mucosal swelling). Anticholinergic agents appear useful against this limb for symptomatic relief of a "runny nose." Chronic exposure to allergens can lead to hyperresponsiveness of the nasal mucosa. As a result, receptors upregulate specific ion channels to increase the sensitivity and potency of their reflex response. Nasal stimuli also affect distant parts of the body. Nerves in the sinus mucosa cause vasodilation; the lacrimal glands can be stimulated by nasal afferent triggers. Even the cardiopulmonary system can be affected via the trigeminal chemosensory system, where sensed irritants can lead to changes in tidal volume, respiratory rate, and blink frequency. The sneeze is an airway defense mechanism that removes irritants from the nasal epithelial surface. It is generally benign, but can lead to problems in certain circumstances. The afferent pathway involves histamine-mediated depolarization of H1 receptor-bearing type C trigeminal neurons and a complex coordination of reactions to effect a response.
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Affiliation(s)
- James N Baraniuk
- Division of Rheumatology, Immunology and Allergy, Room B105, Lower Level Kober-Cogan Building, Georgetown University, 3800 Reservoir Road, NW, Washington, DC 20007-2197, USA.
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Day JH, Ellis AK, Rafeiro E, Ratz JD, Briscoe MP. Experimental models for the evaluation of treatment of allergic rhinitis. Ann Allergy Asthma Immunol 2006; 96:263-77; quiz 277-8, 315. [PMID: 16498847 DOI: 10.1016/s1081-1206(10)61235-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To review the experimental models used for the clinical evaluation of treatments for allergic rhinitis. DATA SOURCES Peer-reviewed clinical studies and review articles were selected from the PubMed database using the following relevant keywords: allergic rhinitis in combination with efficacy, wheal and flare, nasal challenge, park, cat room, or exposure unit. Regulatory guidance documents on allergic rhinitis were also included. STUDY SELECTION The authors' knowledge of the field was used to limit references with emphasis on recent randomized and controlled studies. References of historical significance were also included. RESULTS Traditional outpatient studies are universally accepted in the evaluation of treatment for allergic rhinitis. Experimental models provide ancillary information on efficacy at different stages of treatment development. Skin histamine and allergen challenge, as well as direct nasal challenge with histamine and allergen, are often used as early steps in assessing drug efficacy. Exposure units, park settings, and cat rooms better approximate real life by drawing on the natural mode of allergen exposure and delivering the sensitizing allergen to allergic individuals in the ambient air. Park studies make use of allergens in the outdoors, whereas cat rooms and exposure units present the sensitizing allergens indoors, with the latter providing consistent predetermined allergen levels. Exposure unit and park studies are acknowledged for the determination of onset of action and are also suited to the measurement of duration of effect and other measures of efficacy. Onset and duration of effect are 2 important pharmacodynamic properties of antihistamines and nasal corticosteroids as determined by the Allergic Rhinitis and Its Impact on Asthma and the European Academy of Allergology and Clinical Immunology workshop group. CONCLUSIONS All challenge models serve as important instruments in the evaluation of antiallergic medications and provide additional information to complement traditional studies.
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Affiliation(s)
- James H Day
- Division of Allergy and Immunology, Kingston General Hospital, Kingston, Ontario, Canada.
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Abstract
Antihistamines are useful medications for the treatment of a variety of allergic disorders. Second-generation antihistamines avidly and selectively bind to peripheral histamine H1 receptors and, consequently, provide gratifying relief of histamine-mediated symptoms in a majority of atopic patients. This tight receptor specificity additionally leads to few effects on other neuronal or hormonal systems, with the result that adverse effects associated with these medications, with the exception of noticeable sedation in about 10% of cetirizine-treated patients, resemble those of placebo overall. Similarly, serious adverse drug reactions and interactions are uncommon with these medicines. Therapeutic interchange to one of the available second-generation antihistamines is a reasonable approach to limiting an institutional formulary, and adoption of such a policy has proven capable of creating substantial cost savings. Differences in overall efficacy and safety between available second-generation antihistamines, when administered in equivalent dosages, are not large. However, among the antihistamines presently available, fexofenadine may offer the best overall balance of effectiveness and safety, and this agent is an appropriate selection for initial or switch therapy for most patients with mild or moderate allergic symptoms. Cetirizine is the most potent antihistamine available and has been subjected to more clinical study than any other. This agent is appropriate for patients proven unresponsive to other antihistamines and for those with the most severe symptoms who might benefit from antihistamine treatment of the highest potency that can be dose-titrated up to maximal intensity.
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Affiliation(s)
- Larry K Golightly
- Pharmacy Care Team, University of Colorado Hospital, Denver, Colorado 80262, USA.
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Meltzer EO, Hamilos DL, Hadley JA, Lanza DC, Marple BF, Nicklas RA, Bachert C, Baraniuk J, Baroody FM, Benninger MS, Brook I, Chowdhury BA, Druce HM, Durham S, Ferguson B, Gwaltney JM, Kaliner M, Kennedy DW, Lund V, Naclerio R, Pawankar R, Piccirillo JF, Rohane P, Simon R, Slavin RG, Togias A, Wald ER, Zinreich SJ. Rhinosinusitis: establishing definitions for clinical research and patient care. J Allergy Clin Immunol 2004; 114:155-212. [PMID: 15577865 PMCID: PMC7119142 DOI: 10.1016/j.jaci.2004.09.029] [Citation(s) in RCA: 589] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Background There is a need for more research on all forms of rhinosinusitis. Progress in this area has been hampered by a lack of consensus definitions and the limited number of published clinical trials. Objectives To develop consensus definitions for rhinosinusitis and outline strategies useful in clinical trials. Methods Five national societies, The American Academy of Allergy, Asthma and Immunology; The American Academy of Otolaryngic Allergy; The American Academy of Otolaryngology Head and Neck Surgery; The American College of Allergy, Asthma and Immunology; and the American Rhinologic Society formed an expert panel from multiple disciplines. Over two days, the panel developed definitions for rhinosinusitis and outlined strategies for design of clinical trials. Results Committee members agreed to adopt the term “rhinosinusitis” and reached consensus on definitions and strategies for clinical research on acute presumed bacterial rhinosinusitis, chronic rhinosinusitis without polyposis, chronic rhinosinusitis with polyposis, and classic allergic fungal rhinosinusitis. Symptom and objective criteria, measures for monitoring research progress, and use of symptom scoring tools, quality-of-life instruments, radiologic studies, and rhinoscopic assessment were outlined for each condition. Conclusion The recommendations from this conference should improve accuracy of clinical diagnosis and serve as a starting point for design of rhinosinusitis clinical trials.
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Key Words
- rhinosinusitis
- sinusitis
- nasal polyposis
- quality of life
- clinical trials
- aaaai, american academy of allergy, asthma and immunology
- aao-hns, american academy of otolaryngology–head and neck surgery
- afrs, allergic fungal rhinosinusitis
- cfu, colony-forming units
- cns, coagulase-negative staphylococci
- crs, chronic rhinosinusitis
- crssnp, crs without nasal polyps
- crswnp, crs with nasal polyps
- ct, computed tomography
- ecp, eosinophilic cationic protein
- gerd, gastroesophageal reflux disease
- icam-1, intercellular adhesion molecule 1
- mmp, matrix metalloproteinase
- mri, magnetic resonance imaging
- np, nasal polyp
- pbmc, peripheral blood mononuclear cell
- pnif, peak flow nasal inspiratory flow
- qol, quality of life
- rsdi, rhinosinusitis disability index
- rsom-31, rhinosinusitis outcome measure-31
- sae, staphylococcus aureus enterotoxin
- serd, supraesophageal reflux disease
- sf-36, medical outcomes study short form-36
- snot-20, sino-nasal outcome test-20
- tgf-β1, transforming growth factor β1
- vβ, t-cell receptor variable region β chain
- vcam-1, vascular cell adhesion molecule 1
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Affiliation(s)
- Eli O Meltzer
- Department of Pediatrics, Allergy and Asthma Medical Group and Research Center, 9610 Granite Ridge Drive, Suite B, San Diego, CA 92123, USA.
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Meltzer EO, Hamilos DL, Hadley JA, Lanza DC, Marple BF, Nicklas RA, Bachert C, Baraniuk J, Baroody FM, Benninger MS, Brook I, Chowdhury BA, Druce HM, Durham S, Ferguson B, Gwaltney JM, Kaliner M, Kennedy DW, Lund V, Naclerio R, Pawankar R, Piccirillo JF, Rohane P, Simon R, Slavin RG, Togias A, Wald ER, Zinreich SJ. Rhinosinusitis: Establishing definitions for clinical research and patient care. Otolaryngol Head Neck Surg 2004; 131:S1-62. [PMID: 15577816 PMCID: PMC7118860 DOI: 10.1016/j.otohns.2004.09.067] [Citation(s) in RCA: 265] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Background There is a need for more research on all forms of rhinosinusitis. Progress in this area has been hampered by a lack of consensus definitions and the limited number of published clinical trials. Objectives To develop consensus definitions for rhinosinusitis and outline strategies useful in clinical trials. Study design Five national societies, The American Academy of Allergy, Asthma and Immunology; The American Academy of Otolaryngic Allergy; The American Academy of Otolaryngology Head and Neck Surgery; The American College of Allergy, Asthma and Immunology; and the American Rhinologic Society formed an expert panel from multiple disciplines. Over two days, the panel developed definitions for rhinosinusitis and outlined strategies for design of clinical trials. Results Committee members agreed to adopt the term “rhinosinusitis” and reached consensus on definitions and strategies for clinical research on acute presumed bacterial rhinosinusitis, chronic rhinosinusitis without polyposis, chronic rhinosinusitis with polyposis, and classic allergic fungal rhinosinusitis. Symptom and objective criteria, measures for monitoring research progress, and use of symptom scoring tools, quality-of-life instruments, radiologic studies, and rhinoscopic assessment were outlined for each condition. Conclusions The recommendations from this conference should improve accuracy of clinical diagnosis and serve as a starting point for design of rhinosinusitis clinical trials.
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Affiliation(s)
- Eli O Meltzer
- Allergy and Asthma Medical Group and Research Center, Department of Pediatrics, University of California, San Diego 92123, USA.
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Piette V, Bousquet C, Kvedariene V, Dhivert-Donnadieu H, Crampette L, Senac JP, Bousquet J, Demoly P. Sinus CT scans and mediator release in nasal secretions after nasal challenge with cypress pollens. Allergy 2004; 59:863-8. [PMID: 15230820 DOI: 10.1111/j.1398-9995.2004.00509.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Involvement of paranasal sinuses has been suggested in allergic rhinitis but not clearly demonstrated. AIMS To investigate the relationship between intermittent allergic rhinitis and computerized tomography (CT). METHODS Twenty patients with intermittent rhinitis and sensitized to cypress pollens underwent unilateral nasal provocation tests (NPTs) using increasing concentrations of cypress pollens out of the pollen season. Sinus CT-scans were carried out just before a NPT and 24 h later. Nasal lavage was carried out just before a NPT, 30 min after a positive challenge and again 24 h later. Leucotriene C4/D4, intracellular adhesion molecule-1 and eosinophil cationic protein were measured in nasal secretions. RESULTS Thirteen patients (65%) showed an alteration in their CT-scans after allergen challenge. Ten of them showed sinus changes controlateral to their allergenic provocation. Radiological changes mainly affected the osteomeatal complex and the ethmoid sinuses. Pre-existing abnormalities (13 of 20 cases) mainly concerned the maxillary sinuses. There was no correlation between CT-scan abnormalities and levels of mediators released in nasal secretions. CONCLUSIONS We have shown that nasal allergen challenge can produce radiological changes in the paranasal sinuses. This mainly concerned the ethmoid sinuses.
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Affiliation(s)
- V Piette
- Maladies Respiratoires, INSERMU454, IFR3, Hôpital Arnaud de Villeneuve, CHU Montpellier, 34295 Montpellier Cedex 5, France
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Wilson AM, Sims EJ, Orr LC, Robb F, Lipworth BJ. An evaluation of short-term corticosteroid response in perennial allergic rhinitis using histamine and adenosine monophosphate nasal challenge. Br J Clin Pharmacol 2003; 55:354-9. [PMID: 12680883 PMCID: PMC1884241 DOI: 10.1046/j.1365-2125.2003.01776.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AIMS To evaluate the role of AMP nasal challenge as a measure of short-term treatment response in patients receiving intranasal corticosteroids. Adenosine monophosphate (AMP) challenge has been shown to be a good inflammatory surrogate in the lower airways, but it has not been properly evaluated as a nasal challenge test. METHODS Fourteen patients with perennial allergic rhinitis (PAR) were randomized to receive 2 weeks treatment with placebo (PL) or 200 microg intranasal mometasone furoate (MF) once daily in a randomized single-blind crossover study. AMP (25-800 mg ml-1) and histamine (0.25-8 mg ml-1) nasal challenge testing were performed after each treatment period with 30% decrease in minimal cross-sectional area (MCA). Domiciliary symptom data were collected. RESULTS There was a significant (P < 0.05) improvement in PC30 MCA and nasal volume with AMP but not with histamine comparing MF vs PL. This amounted to a 2.8 (95% CI 1.5, 4.0) and 0.7 (95% CI -0.5, 1.9) doubling-dose change for AMP and histamine challenges, respectively. There were significant (P < 0.05) improvements in nasal symptoms and quality of life. CONCLUSIONS AMP nasal challenge using acoustic rhinometry may be a useful test to assess short-term treatment response in patient with PAR.
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Affiliation(s)
- Andrew M Wilson
- Asthma & Allergy Research Group, Ninewells Hospital & Medical School, University of Dundee, Dundee DD1 9SY, Scotland, UK
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Abstract
Nasal sensory nerve stimulation leads to sensations of pain and congestion and nociceptive nerve axon response-mediated release of substance P that stimulates glandular secretion as an immediate-acting protective mucosal defense. Recruited parasympathetic reflexes cause submucosal gland secretion via muscarinic M3 receptors. Parasympathetic reflexes, sneezing, and other avoidance behaviors rapidly clear the upper airway of offending agents while protecting the lower airways. Dysfunction contributes to allergic, infectious, and other nonallergic rhinitides and possibly sinusitis. Sympathetic arterial vasoconstriction reduces mucosal blood flow, sinusoidal filling, and mucosal thickness, restoring nasal patency. Loss of sympathetic tone may contribute to some chronic, nonallergic rhinopathies.
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Affiliation(s)
- J N Baraniuk
- Division of Rheumatology, Immunology and Allergy, Georgetown University Medical Center, GL-020 Gorman Building, 3800 Reservoir Road, Washington, DC 20007-2197, USA.
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