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29 Cervical Lymphadenopathy inChildren
the possibility of abscess formation. Ultrasonography is useful for detecting abscess formation. If the lymphadenitis is highly suspicious for abscess formation and is present in an anatomical area requiring more detailed information, a computed tomographic (CT) scan or magnetic resonance image (MRI) will give more detailed information.
An abscess smaller than 1cm may not require surgical drainage. Clinicians may consider a trial of 24–48h of intravenous antibiotics before incision and drainage for abscesses less than 1.5–2cm if the child is clinically stable. If the location of the abscess is anatomically tricky, or if the abscess is small but persistent, image-guided needle aspiration with or without drain placement may be appropriate. Cultures should be taken to help direct the antibiotic regimen.
387
29.5 Infectious Mononucleosis DuetoEBV
Infectious mononucleosis due to EBV infection is frequent in the pediatric age group. Main symptoms are fever (98.3%), tonsillitis (100%), tonsillar white exudate (83.6%), cervical lymphadenopathy (98.3%), hepatomegaly (37.7%), splenomegaly (42.6%), eyelid edema (41.0%), and nasal obstruction (49.2%) [8]. Among the labo­ratory ndings, leukocytosis with lymphocytosis and monocytosis are common as well as elevations in the levels of alanine aminotransferase, aspartate aminotransfer­ase, and lactic dehydrogenase in the blood.

29.6 Granulomatous Lymphadenitis

The granulomatous lymphadenitis is a group of disorders that are rarely seen in children. Among them, the caseating granulomatous lymphadenitis is the result of mycobacterial infections [1]. The noncaseating granulomatous lesions are seen in cat-scratch disease, toxoplasmosis, toxocariasis, brucellosis, Kikuchi-Fujimoto dis­ease, Kimura disease, and sarcoidosis.
29.6.1 Mycobacterial Infection
Mycobacterial infections, mainly due to Mycobacterium tuberculosis and Mycobacterium avium are the major causes of cervical granulomatous lymphade­nopathy in children [9, 10]. These lymph nodes grow chronically with a purplish overlying skin color, and rm to palpation. Abscess and stula formations are expected in clinical courses.
29.6.2 BCG Vaccine
BCG vaccine can cause lymphadenitis in 4–5 cases of 100,000 vaccine administra­tions [11]. The location is usually the axillary area, but supraclavicular and cervical lymph nodes can also be affected.
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29.6.3 Cat-Scratch Disease
Cat-scratch disease (CSD) is characterized by regional lymphadenitis with fever caused by Bartonella henselae, a gram-negative bacillus. Cat-scratch disease fol­lows the inoculation of Bartonella henselae through broken skin or mucous mem­branes and is usually transmitted by the scratch or bite of a cat [12]. A skin papule typically develops at the site of inoculation, followed by regional adenopathy 5days to 2months later. The cervical, axillary, or supraclavicular lymphadenopathy loca­tions are the most frequently affected. The involved lymph nodes are initially mobile, elastic, and tender, with a typical size from 1 to 5cm. In about 10–15% of the cases, the adenopathy evolves in a suppurative phase, lasting for months [13]. In most cases, the diagnosis is clinical and supported by a history of exposure to a cat. Serological tests can be used to conrm the diagnosis.
Cat-scratch disease is usually self-limited. In most cases, nodal enlargement resolves spontaneously after 1–3months. In some patients, the lymph nodes may be painful and have a protracted course with the formation of abscesses and stulas. Several studies have highlighted the need for antibiotic therapy or multiple drain­ages in these cases [14]. The rst line of antibiotic treatment is azithromycin; how­ever, clarithromycin, ciprooxacin, or trimethoprim/sulfamethoxazole may be considered.
29.6.4 Sarcoidosis
Among all the causes of lymphadenopathy, sarcoidosis is reported in 0.37% as an underlying disease [1]. In pediatric sarcoidosis, there are two clinical forms reported. Children younger than 5years of age have a triad of rash, uveitis, and arthritis. But older children have a multisystem disease that involves LAP, pulmonary involve­ment with fever, fatigue, and weight loss. In a pediatric series of sarcoidosis with 48 cases, peripheral lymphadenopathy is reported at 40% and hilar LAP at 71% [15]. In another large series of pediatric sarcoidosis, the percentage of peripheral LAP is 30%, hilar adenopathy 40%, and hepatosplenomegaly 30% [16]. According to the radiological ndings of sarcoidosis described by Hofmann etal., chest radiographs were found normal (stage 0) in 39%; 34% had isolated bilateral hilar lymphade­nopathy (stage I), 10% had bilateral hilar adenopathy with pulmonary inltrates (stage II), and 15% had parenchymal inltrates without hilar adenopathy (stage III) [15].
29.6.5 Kikuchi-Fujimoto Disease
Children with Kikuchi-Fujimoto disease may have enlarged cervical lymph nodes, fever, symptoms of upper respiratory tract infection, and less frequently chills, night sweats, arthralgia, rash, and weight loss. Lymph nodes are usually painful and ten­der; splenomegaly or hepatomegaly have sometimes been described [17].
29 Cervical Lymphadenopathy inChildren
389

29.7 Malignancies

Neck region may be the primary site of lymphomas, either Hodgkin’s (HL) or non­Hodgkin’s lymphoma (NHL), and granulocytic sarcoma, or secondary metastasis from nasopharyngeal and oropharyngeal tumors such as carcinoma, NHLs, neuro­blastoma, rhabdomyosarcoma or thyroid tumors. Clinically, 70% of the HL begins in the cervical lymph nodes in children. Mediastinal involvement accompanies cer­vical lymph node enlargement in many cases. In NHLs, head and neck tissues may be the primary sites such as cervical lymph nodes, tonsils, nasopharyngeal area, nasal cavity, sinuses, and scalp. In acute lymphoblastic leukemia, generalized LAP is more frequent than it is in acute myeloid leukemia. Granulocytic sarcoma (chlo­roma) cases may primarily begin in the cervical lymph nodes without accompany­ing acute myeloid leukemia. Cervical lymph nodes may also be involved in histiocytosis, thyroid carcinoma, nasopharyngeal carcinoma, rhabdomyosarcoma, neuroblastoma, malignant rhabdoid tumors, osteogenic sarcoma, and Ewing family tumors of the region. In malignancies, lymph nodes are enlarged, xed, rmed, and conglomerated without pain in palpation.

29.8 Diagnosis

All children with cervical lymphadenopathy should be evaluated clinically rst. History, patient symptoms, and ndings of physical examination are necessary to make the diagnosis in many cases. Laboratory (peripheral blood smear, cell count, biochemistry, serological tests) and radiological tests (especially ultrasonography) are helpful for diagnosis and differential diagnosis. In case of pathological lymph­adenopathy with systemic B symptoms (fever >1week, night sweats, weight loss >10% of body weight), palpable supraclavicular nodes, generalized lymphadenopa­thy, xed, painless, matted, nontender lymph nodes, abnormal chest X-ray with mediastinal mass or adenopathy, and dyspnea, lymph node biopsy is taken to make a denitive diagnosis [16]. However, sometimes a biopsy is unnecessary. Malignancy is not found frequent among the excised lymph nodes. In a surgical analysis, biopsy yielded 48% of reactive lymph nodes, 25% tuberculosis, 11.6% neoplasm, 11.5% granulomatous lesions, 2.5% miscellaneous infections, and 1.5% normal [18].

References

1. Deosthali A, Donches K, Del Vecchio M, etal. Etiologies of pediatric cervical lymphadenopa­thy: a systematic review of 2687 subjects. Glob Pediatr Health. 2019;6:1–7.
2. Bshesh K, Khan W, Vattoth AL, etal. Lymphadenopathy post-COVID-19 vaccination with increased FDG uptake may be falsely attributed to oncological disorders: a systematic review. J Med Virol. 2022;94(5):1833–45.
3. Belsky JA, Carroll WR, Xu G. Side effects with a focus on lymphadenopathy following COVID-19 vaccination in pediatric and AYA oncology patients. J Pediatr Hematol Oncol. 2023;45(2):88–90. https://doi.org/10.1097/MPH.0000000000002621.
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4. Howard-Jones AR, Al Abdali K, Britton PN.Acute bacterial lymphadenitis in children: a ret­rospective, cross-sectional study. Eur J Pediatr. 2023;82(5):2325–33. https://doi.org/10.1007/
s00431- 023- 04861- 0.
5. Kwon M, Seo JH, Cho KJ, etal. Suggested protocol for managing acute suppurative cervi­cal lymphadenitis in children to reduce unnecessary surgical interventions. Ann Otol Rhinol Laryngal. 2016;125(12):953–8. https://doi.org/10.1177/0003489416665194.
6. Gosche JR, Vick L. Acute, subacute, and chronic cervical lymphadenitis in children. Semin Pediatr Surg. 2006;15(2):99–106. https://doi.org/10.1053/j.sempedsurg.2006.02.007.
7. Weinstock MS, Pattel NA, Smith NP. Pediatric cervical lymphadenopathy. Pediatr Rev. 2018;39(9):433–43. https://doi.org/10.1542/pir.2017- 0249.
8. Wu Y, Ma S, Zhang L, et al. Clinical manifestations and laboratory results of 61 chil­dren with infectious mononucleosis. J Int Med Res. 2020;48(10):1–8. https://doi.
org/10.1177/0300060520924550.
9. Haverkamp MH, Arend SM, Lindeboom JA, et al. Nontuberculous mycobacterial infec­tion in children: a 2-year prospective surveillance study in The Netherlands. Clin Infect Dis. 2004;39(4):450–6. https://doi.org/10.1086/422319.
10. Durmuş SY, Tanır G, Kaman A. Tuberculous lymphadenitis in children. J Pediatr Inf. 2021;15(3):e139–45. https://doi.org/10.5578/ced.20219716.
11. Szczuka I.Adverse events following immunization with BCG vaccine in Poland 1994–2000. Przegl Epidemiol. 2002;56:205–16.
12. Pecora F, Abate L, Scavone S, etal. Management of infectious lymphadenitis in children. Children. 2021;8(10):860. https://doi.org/10.3390/children8100860.
13. Ridder-Schröter R, Marx A, Beer M, etal. Abscess-forming lymphadenopathy and osteomy­elitis in children with Bartonella henselae infection. J Med Microbial. 2008;57(4):519–24.
14. Stevens DL, Bisno AL, Chambers HL, etal. Practice guidelines for the diagnosis and manage­ment of skin and soft-tissue infections. Clin Infect Dis. 2005;41:1373–406.
15. Hoffmann AL, Milman N, Byg KE. Childhood sarcoidosis in Denmark 1979-1994: inci­dence, clinical features and laboratory results at presentation in 48 children. Acta Pediatr. 2004;93(1):30–6.
16. Gedalia A, Khan TA, Avinash KS, etal. Childhood sarcoidosis: Louisiana experience. Clin Rheumatol. 2016;35:1879–84.
17. Lelii M, Senatore L, Amodeo I, et al. Kikuchi—Fujimoto disease in children: two case reports and a review of the literature. Ital J Pediatr. 2018;44:83. https://doi.org/10.1186/
s13052- 018- 0522- 9.
18. Moore SW, Schneider JW, Schaaf HS. Diagnostic aspects of cervical lymphadenopathy in children in the developing world: a study of 1,877 surgical specimens. Pediatr Surg Int. 2003;19:240–4.
M. Kantar and E. Ataseven
Chronic Cough inChildren: Upper Respiratory Tract Related Etiologies
TugbaRamasli Gursoy andLauraGochicoa-Rangel

30.1 Introduction

Cough is a forced expiratory mechanism against the glottis and protective reex with both voluntary and involuntary control elements, necessary for the clearance of inhaled particles and mucus from airways [1]. Cough is the most common com­plaint in respiratory system diseases and is an irritating complaint when it is intense and prolonged [2, 3]. The presence of a persistent cough in pediatric patients has the potential to negatively impact their overall well-being, resulting in diminished qual­ity of life, increased frequency of medical consultations, and perhaps inappropriate utilization of medications. In addition, cough can be a sign of a serious underlying disease [4]. A cough that persists for more than 4weeks in children aged 14years and younger is dened as a chronic cough [3]. In both adults and children aged 14years and above, the duration of a cough over 8weeks is classied as a chronic cough [4]. The causes of chronic cough in children are given in Table30.1. The most common causes of upper respiratory tract related etiologies of chronic cough in children are discussed in this section.
30
T. Ramasli Gursoy (*) Department of Pediatric Pulmonology, Van Training and Research Hospital, Health Sciences University, Van, Turkey
L. Gochicoa-Rangel Department of Respiratory Physiology, National Institute of Respiratory Diseases “Ismael Cosío Villegas”, Mexico City, Mexico
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2024 H. Yüksel et al. (eds.), Pediatric Airway Diseases, Comprehensive ENT,
https://doi.org/10.1007/978-3-031-74853-0_30
391
392
Table 30.1 Causes of chronic cough in children
Pulmonary causes
Asthma Congenital lung disease Aspiration due to swallowing dysfunction,
GERD, or TEF Cystic brosis Vascular anomalies Immunodeciency (primary or secondary) Environmental pollutants (tobacco smoke,
Primary ciliary dyskinesia Extrapulmonary causes Post infection Cardiac diseases Protracted bacterial bronchitis Upper respiratory tract diseases Bronchiectasis Ear disease Retained inhaled foreign body Psychogenic cough Interstitial lung disease Drugs (ACE inhibitors)
GERD gastroesophageal reux disease, TEF tracheoesophageal stula, ACE angiotensin-convert­ing enzyme
T. Ramasli Gursoy and L. Gochicoa-Rangel
Tracheobronchomalacia
vaping, air pollution)

30.2 Upper Airway Cough Syndrome

The pathogenesis of Upper Airway Cough Syndrome (UACS) is hypothesized to result from postnasal drip, wherein nasal secretions run into the nasopharynx. This condition can be associated with allergic, chronic nonallergic, or vasomotor rhinitis or rhinosinusitis. The initiation of the cough reex is largely triggered by the activa­tion of cough receptors situated in the mucous membranes of the larynx. This response is particularly prominent when there is a buildup of secretions in the upper respiratory tract [5]. The exact mechanism by which UACS contributes to chronic cough remains uncertain [6]. However, numerous studies have consistently demon­strated that UACS, particularly when accompanied by postnasal drip, is a common underlying factor in cases of subacute and chronic cough. The reported prevalence of UACS-associated cough varies considerably, ranging from 9% to 82% across different studies [6, 7]. The signicant variation in prevalence can be primarily attributed to the slow integration of the term into clinical practice and disparities in treatment approaches across different countries. There is a prevailing agreement among experts that UACS is commonly acknowledged as either the major or sec­ondary most prevalent cause of chronic cough in non-smokers, on a global level. UACS is frequently associated with comorbidities that can lead to the manifestation of a chronic cough [57]. According to Irwin etal., cough is associated with three or more etiologies (such as gastroesophageal reux disease (GERD), drugs, asthma) in up to 42% of patients [6]. The term “postnasal drip syndrome” was commonly employed until 2006, at which point the American College of Chest Physicians (ACCP) recommended substituting it with the acronym UACS [8]. While it was previously believed that purulent nasal secretions were solely responsible for caus­ing persistent cough, numerous studies have demonstrated that there are various underlying causes, such as inammation and irritation of upper airway tissues, that can lead to coughing, including cases involving postnasal drip. The divergence of
30 Chronic Cough inChildren: Upper Respiratory Tract Related Etiologies
393
opinions within the academic community led the ACCP to revise the nomenclature, resulting in the adoption of the term UACS. There remains ongoing discourse regarding the appropriate terminology to delineate the experience of postnasal drip in relation to coughing [5, 8]. The reason why the European Respiratory Society (ERS) does not dene UACS is that postnasal drip cannot fully explain the cough and some patients with postnasal drip do not cough. UACS and postnasal drip syn­drome are classied as “rhinitis/rhinosinusitis” or upper respiratory tract diseases causing cough according to ERS [3, 5].
Initially, it is imperative to obtain a comprehensive anamnesis regarding the ini­tiation, duration, and nature (intermittent or persistent) of the disease in children being evaluated for UACS.Additionally, it is important to inquire about symptoms such as rhinorrhea, nasal congestion, any history of allergies, sensitivity to seasonal or daily variations, as well as the severity of associated cough and headache. Characteristic features of the examination for UACS include nasal discharge and congestion, postnasal drip that can lead to symptoms of throat discharge, wheezing, and snoring, as well as a cobblestone appearance resulting from lymphoid hypertro­phy in the oropharynx [5, 8].
The prioritization of therapy for UACS should be focused on addressing the underlying medical conditions that are commonly linked with it, such as GERD, uncontrolled asthma, or bronchiectasis. Nevertheless, when a specic reason cannot be determined, it is advisable to commence empirical treatment [9]. The treatments of UACS and most common underlying medical conditions are given in Table30.2. When symptoms of rhinitis or chronic rhinosinusitis (CRS) persist despite initial empirical therapy, secondary UACS may necessitate further therapeutic approaches. Decongestants, which are believed to restrict the secretion of inammatory cyto­kines, are advised for use. Patients diagnosed with allergic rhinitis (AR) are advised to utilize next-generation antihistamines; however, those with non-allergic rhinitis (NAR) or CRS should be administered rst-generation antihistamines for treatment. There is a suggestion that the anticholinergic action exhibited by rst generation antihistamines has a notable impact on patients with NAR and CRS in comparison to individuals with AR.In cases when antihistamines and decongestants are ineffec­tive in managing UACS related to non-allergic rhinitis, it is advisable to explore other therapy modalities. The treatment for vasomotor rhinitis accompanied with cough typically involves the administration of antihistamines and decongestants, as
Table 30.2 The treatments of upper airway cough syndrome and most common underlying medi­cal conditions
Allergic rhinitis Next-generation antihistamines, decongestant, nasal steroid Non-allergic rhinitis First generation antihistamines, decongestant, ipratropium bromide
nasal spray (alternative treatment)
Chronic rhinosinusitis Nasal saline, nasal corticosteroids, antibiotics, endoscopic sinus
surgery in selected cases Post viral cough First generation antihistamines, decongestants, montelukast Gastroesophageal reux
disease
Dietary recommendations, proton pump inhibitors, antacids,
histamine receptor antagonists, surgery in selected cases
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T. Ramasli Gursoy and L. Gochicoa-Rangel
these medications include anticholinergic properties, particularly in the case of rst­generation antihistamines. The utilization of ipratropium bromide nasal spray may be considered in situations when contraindications are present or when alternative treatment options are deemed necessary. First generation antihistamines and decon­gestants may also provide relief for post viral cough resulting from a viral upper respiratory tract illness. Additionally, studies have demonstrated the potential ben­ets of Montelukast in the treatment of post viral cough. The management of symp­toms associated with chronic rhinosinusitis often involves the use of nasal saline, topical nasal corticosteroids, and antibiotics. In certain instances where conven­tional medical interventions are ineffective, the necessity for endoscopic sinus sur­gery may arise [10]. Insufcient data exist to establish a denitive dosage or duration for the administration of non-sedating or sedative H1-histamine receptor antagonist treatment. Two distinct studies have examined the improvement in cough score at different time intervals, indicating that there is currently no universally accepted standard period for medical therapy. In a study involving a cohort of 20 patients presenting with AR, characterized by cough and rhinoconjunctivitis, the patients underwent a 4-week treatment regimen involving the administration of loratadine, with the evaluation of cough frequency and severity as the primary outcome mea­sures. At the conclusion of the trial period, a notable enhancement in both measures was seen in comparison to the placebo group [11]. A cohort of individuals present­ing with a persistent cough and concurrent eosinophilic bronchitis, commonly referred to as atopic cough, was studied. A noteworthy reduction in cough symp­toms was observed after 1week of treatment with non-sedating antihistamines [12]. It is postulated that the development of UACS may be attributed to many variables, including postnasal drip, persistent inammation of the airway, and heightened sen­sitivity of the sensory nerves. Further research is required to distinguish the effects of distinct factors within, including thermal, mechanical, or chemical stimuli, on the development of chronic cough [5, 13]. The use of targeted therapy directed at par­ticular receptors, such as transient receptor potential vanilloid 1 (TRPV1), has the potential to enhance symptom relief in individuals who exhibit resistance to conven­tional antihistamine and decongestant treatments [13].

30.3 Chronic Rhinosinusitis

Chronic rhinosinusitis is characterized by the presence of two or more symptoms, including purulent rhinorrhea, nasal obstruction, cough or face pressure/pain, per­sisting for a minimum duration of 3months. Additionally, the condition is diag­nosed based on the observation of mucosal edema, purulent discharge, or nasal polyps by endoscopic examination, and/or the identication of ostiomeatal complex or sinus edema using computer tomography (CT) scan imaging [14, 15]. The etiol­ogy of CRS in pediatric patients remains incompletely understood. Acute rhinosi­nusitis is predominantly caused by infection, but CRS encompasses a range of disorders that can be inuenced by concomitant medical illnesses, infection, and environmental factors.
30 Chronic Cough inChildren: Upper Respiratory Tract Related Etiologies
395
The inuencing factors exhibit variation across different age groups, wherein adenoiditis emerges as a relatively signicant trigger among younger children, while allergic rhinitis assumes greater importance among older children [16]. Furthermore, the presence of cystic brosis, primary ciliary dyskinesia, asthma, and GERD augments the prevalence of CRS.Young children have the potential to expe­rience a range of 3–8 viral upper respiratory tract infections annually. The preva­lence of acute bacterial rhinosinusitis as a complication of upper respiratory tract infections is estimated to range from 0.5% to 5%. Additionally, a subset of these cases may further proceed into CRS [17]. CRS is inuenced by several environmen­tal variables, such as exposure to smoking, industrial pollutants, and the commence­ment of formal education. The blockage of the ostiomeatal complex is caused by multifactorial inammation of the sinus mucosa, whereas the impedance of the sinus ostia is a result of edema. This edema contributes to the reduction in secre­tions, a decrease in ciliary function, and the development of persistent bacterial infection [17, 18].
The utilization of nasal endoscopy allows for the direct observation of the nasal cavity, making it an optimal method for diagnosing CRS.Doing nasal endoscopy in children might pose difculties, recommendations suggest that it should be consid­ered as the rst step in diagnosing CRS [14, 15]. According to the recommendations of guidelines, CT is the preferred rst imaging modality for assessing chronic rhi­nosinusitis. CT is considered to be an optimal imaging modality due to its ability to assist with surgical navigation and its high sensitivity in detecting mucosal inam­mation [15, 19]. Magnetic resonance imaging (MRI) is recommended in cases when there is suspicion of intracranial or intraorbital problems associated with sinusitis, since it offers superior vision of soft tissue, as per the established standards. According to the guidelines, the use of plain radiographs is not suggested due to their limited connection with CRS [14, 15]. A study which evaluated 6-year results of maxillary sinus punctures of children with CRS detected that the predominant bacterial species present were alpha-hemolytic Streptococcus, Haemophilus inu­enza, Streptococcus pneumonia, coagulase-negative Staphylococcus, Staphylococcus aureus, and anaerobic bacteria [20]. Guidelines advocate for the acquisition of cultures exclusively in cases when patients have exhibited no response to empiric therapy within a 72-h timeframe, possess notable comorbidities, or suffer from a serious sickness. Maxillary sinus aspiration is recommended as the rst choice because of the high probability of microorganism isolation in culture. However, the invasiveness of the operation and the requirement for anesthesia have limitations on their applicability within the children [15].
The utilization of saline irrigations has been shown to enhance the elimination of pathogens in the nasal passage and reduce the presence of inammatory mediators. The use of saline irrigation is supported by recommendations for the treatment of CRS due to its relative efcacy and low risk. Saline irrigation can be used as a stand­alone treatment or as an additional therapy in the management of children (espe­cially under 6years old) with CRS [14, 15].
The usage of nasal steroids is prevalent due to the prevailing notion that steroids possess the capacity to effectively diminish inammation [21]. Although there is a
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scarcity of research specically targeting the pediatric population, current recom­mendations advocate for the use of daily topical steroid spray as the primary thera­peutic approach for children patients diagnosed with CRS, regardless of the presence or absence of nasal polyposis [14, 15].
In light of the established advantages associated with nasal saline irrigations, some researchers postulate that intranasal antibiotic irrigations might potentially offer the therapeutic effectiveness of antibiotics while circumventing the systemic adverse effects commonly associated with oral or intravenous administration of antibiotics [22, 23]. An examination of the existing literature pertaining to adult and pediatric populations reveals that the utilization of antibiotic nasal irrigations may be particularly advantageous when employed subsequent to endoscopic sinus sur­gery in the management of refractory CRS [23]. Nevertheless, due to the scarcity of information encompassing aspects such as medicine dosage and the potential for ototoxicity, it is challenging to provide denitive recommendations for pediatric patients [14].
The existing body of evidence regarding the efcacy of oral antibiotics for CRS is limited. Given the scarcity of data, the selection of antibiotics is frequently deter­mined by treatment protocols for acute rhinosinusitis. The recommendations advo­cate amoxicillin for the rst choice. Amoxicillin/clavulanate and cephalosporins can serve as viable options in cases when there is a perceived risk of encountering beta-lactamase generating bacteria [15]. The use of clindamycin is warranted in cases when anaerobic bacteria are detected. According to the guidelines set out by the Infectious Disease Society of America (IDSA), the preferred choice of medica­tion is amoxicillin/clavulanate rather than amoxicillin due to the prevailing preva­lence of beta-lactamase generating bacteria [24]. Consideration may be given to dual treatment with a third-generation cephalosporin and either clindamycin or levooxacin in those who have documented allergies to penicillin [25]. The optimal length of antibiotic therapy remains undetermined due to the little information available in the existing literature. The guidelines recommend a prolonged course of treatment [14, 15].
There is a limited body of research examining the advantages of intravenous (IV) antibiotics in the pediatric chronic CRS population. While there is evidence show­ing therapeutic advantages, it is challenging to determine the effectiveness of IV antibiotics in isolation due to the presence of simultaneous surgical procedures and the absence of a comparison group [26, 27]. Based on the existing constraints in available data, the recommendations do not endorse the utilization of IV antibiotics as a standard practice for chronic rhinosinusitis [15]. Nevertheless, it is recom­mended to administer IV antibiotics in cases when there is suspicion of an intraor­bital or intracranial complications arising from rhinosinusitis [14, 15].
Surgery may play a valuable role in cases whose symptoms do not improve ade­quately with medical treatment. Adenoidectomy is considered the primary surgical intervention for CRS.In certain instances, it is possible to integrate antral irrigation of the maxillary sinuses or balloon dilatation as complementary procedures. Endoscopic sinus surgery is a viable option for children who have had treatment failure and are aficted with nasal polyps. The presence of foreign bodies is a rare