For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
4
views
27
references
 Top references
cited by
0
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
1 collections
    0
    shares
      378
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Miringotomia pelo método de microeletrocautério por radiofrequência associado à mitomicina C em modelo animal Translated title: Mitomycin C-associated radiofrequency microelectrocautery used in myringotomy in an animal model

      research-article

      Read this article at

      SciELO
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Este estudo tem como objetivo descrever uma técnica cirúrgica alternativa à inserção do tubo de ventilação na membrana timpânica: a miringotomia por radiofrequência isolada e associada à mitomicina C. OBJETIVO: Demonstrar um método cirúrgico que proporcione uma execução mais simples, não sujeito às complicações vinculadas ao tubo de ventilação. MATERIAL E MÉTODOS: Foram comparadas as técnicas de miringotomia por microlanceta e por microeletrocautério por radiofrequência (ponteira 0,3mm e 0,7mm) isolada e associada à mitomicina C, considerando o tempo de fechamento timpânico, em ratos da linhagem Wistar. Estudo experimental. RESULTADOS: Houve uma diferença estatisticamente significante entre a miringotomia por radiofrequência e por microlanceta. Ao analisar a técnica por radiofrequência com ponteira 0,7mm associada à mitomicina C (teste de Wilcoxon), o P encontrado foi menor que 0,001, demonstrando uma significância estatística. O tempo máximo de fechamento foi de 44 dias e a mediana encontrada foi de 14 dias. CONCLUSÃO: A técnica de miringotomia por radiofrequência (com ponteira de maior diâmetro) associada à mitomicina C, apresenta uma otimização no tempo de cicatrização da mesma.

          Translated abstract

          This study aimed at describing an alternative surgical technique to the insertion of a ventilation tube in the tympanic membrane: myringotomy by radiofrequency alone and associated with mytomicin C. AIM: to show a surgical approach that can be simple to execute, not subject to complications arising from the ventilation tube. MATERIALS AND METHODS: we compared myringotomy by microknife and by radiofrequency microcautery (0.3 mm and 0.7 mm tips) alone and associated with mytomicin C, considering the time of tympanic closure in Wistar rats. Experimental study. RESULTS: there was a statistically significant difference between radiofrequency myringotomy and knife myringotomy. As we analyze the radiofrequency approach with the 0.7mm tip associated with mytomicin C (Wilcoxon test), the p value found was lower than 0.001, showing a statistical significance. The maximum tympanic membrane closure time was 44 days and the median found was 14 days. CONCLUSION: the radiofrequency myringotomy (with the larger diameter tip) associated with mytomicin C enhances the tympanic membrane healing time.

          Related collections

          Most cited references27

          • Record: found
          • Abstract: found
          • Article: not found

          Clinical practice guideline: Otitis media with effusion.

          R Rosenfeld, , Martin C Mahoney … (2004)
          The clinical practice guideline on otitis media with effusion (OME) provides evidence-based recommendations on diagnosing and managing OME in children. This is an update of the 1994 clinical practice guideline "Otitis Media With Effusion in Young Children," which was developed by the Agency for Healthcare Policy and Research (now the Agency for Healthcare Research and Quality). In contrast to the earlier guideline, which was limited to children aged 1 to 3 years with no craniofacial or neurologic abnormalities or sensory deficits, the updated guideline applies to children aged 2 months through 12 years with or without developmental disabilities or underlying conditions that predispose to OME and its sequelae. The American Academy of Pediatrics, American Academy of Family Physicians, and American Academy of Otolaryngology-Head and Neck Surgery selected a subcommittee composed of experts in the fields of primary care, otolaryngology, infectious diseases, epidemiology, hearing, speech and language, and advanced practice nursing to revise the OME guideline. The subcommittee made a strong recommendation that clinicians use pneumatic otoscopy as the primary diagnostic method and distinguish OME from acute otitis media (AOM). The subcommittee made recommendations that clinicians should (1) document the laterality, duration of effusion, and presence and severity of associated symptoms at each assessment of the child with OME; (2) distinguish the child with OME who is at risk for speech, language, or learning problems from other children with OME and more promptly evaluate hearing, speech, language, and need for intervention in children at risk; and (3) manage the child with OME who is not at risk with watchful waiting for 3 months from the date of effusion onset (if known), or from the date of diagnosis (if onset is unknown). The subcommittee also made recommendations that (4) hearing testing be conducted when OME persists for 3 months or longer, or at any time that language delay, learning problems, or a significant hearing loss is suspected in a child with OME; (5) children with persistent OME who are not at risk should be reexamined at 3- to 6-month intervals until the effusion is no longer present, significant hearing loss is identified, or structural abnormalities of the eardrum or middle ear are suspected; and (6) when a child becomes a surgical candidate, tympanostomy tube insertion is the preferred initial procedure. Adenoidectomy should not be performed unless a distinct indication exists (nasal obstruction, chronic adenoiditis); repeat surgery consists of adenoidectomy plus myringotomy, with or without tube insertion. Tonsillectomy alone or myringotomy alone should not be used to treat OME. The subcommittee made negative recommendations that (1) population-based screening programs for OME not be performed in healthy, asymptomatic children and (2) antihistamines and decongestants are ineffective for OME and should not be used for treatment; antimicrobials and corticosteroids do not have long-term efficacy and should not be used for routine management. The subcommittee gave as options that (1) tympanometry can be used to confirm the diagnosis of OME and (2) when children with OME are referred by the primary clinician for evaluation by an otolaryngologist, audiologist, or speech-language pathologist, the referring clinician should document the effusion duration and specific reason for referral (evaluation, surgery), and provide additional relevant information such as history of AOM and developmental status of the child. The subcommittee made no recommendations for (1) complementary and alternative medicine as a treatment for OME based on a lack of scientific evidence documenting efficacy and (2) allergy management as a treatment for OME based on insufficient evidence of therapeutic efficacy or a causal relationship between allergy and OME. Last, the panel compiled a list of research needs based on limitations of the evidence reviewed. The purpose of this guideline is to inform clinicians of evidence-based methods to identify methods to identify, monitor, and manage OME in children aged 2 months through 12 years. The guideline may not apply to children older than 12 years because OME is uncommon and the natural history is likely to differ from younger children who experience rapid developmental change. The target population includes children with or without developmental disabilities or underlying conditions that predispose to OME and its sequelae. The guideline is intended for use by providers of health care to children, including primary care and specialist physicians, nurses and nurse practitioners, physician assistants, audiologists, speech-language pathologists, and child development specialists. The guideline is applicable to any setting in which children with OME would be identified, monitored, or managed. This guideline is not intended as a sole source of guidance in evaluating children with OME. Rather, it is designed to assist primary care and other clinicians by providing an evidence-based framework for decision-making strategies. It is not intended to replace clinical judgment or establish a protocol for all children with this condition, and may not provide the only appropriate approach to diagnosing and managing this problem.
          Article 0 comments Cited 26 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Meta-analysis of tympanostomy tube sequelae.

            Ken M. Nelson, Christina D. Kay, R Rosenfeld (2001)
            To estimate the incidence of tympanostomy tube sequelae based on systematic review of published case series and randomized studies. English-language MEDLINE search from 1966 through April 1999 with manual reference search of proceedings, articles, reports, and guidelines. Cohort studies with otitis media as the primary indication for tube placement. Two reviewers independently extracted data from 134 articles. Transient otorrhea occurred in 16% of patients in the postoperative period and later in 26%; recurrent otorrhea occurred in 7.4% of patients and chronic otorrhea in 3.8%. Sequelae of indwelling tubes included obstruction (7% of ears), granulation tissue (5%), premature extrusion (3.9%), and medial displacement (0.5%). Sequelae after tube extrusion included tympanosclerosis (32%), focal atrophy (25%), retraction pocket (3.1%), cholesteatoma (0.7%), and perforation (2.2% with short-term tubes, 16.6% with long-term tubes). Meta-analysis showed that long-term tubes increased the relative risk of perforation by 3.5 (95% CI, 1.5 to 7.1) and cholesteatoma by 2.6 (95% CI, 1.5 to 4.4). Similarly, intubation increased the relative risk of tympanosclerosis by 3.5 (95% CI, 2.6 to 4.9) and focal atrophy by 1.7 (95% CI, 1.1 to 2.7) over nonintubated control ears (baseline tympanosclerosis and atrophy rates of 10% and 14%, respectively). Sequelae of tympanostomy tubes are common but are generally transient (otorrhea) or cosmetic (tympanosclerosis, focal atrophy). Nonetheless, the high incidence suggests a need for ongoing otologic surveillance of all patients with indwelling tubes and for a reasonable time period after tube extrusion. Long-term tubes should be used on a selective and individualized basis.
            Article 0 comments Cited 24 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Middle ear and auditory tube: middle ear clearance, gas exchange, and pressure regulation.

              J Sadé, A Ar (1997)
              Article 0 comments Cited 18 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Journal
                Journal ID (publisher-id): bjorl
                Title: Brazilian Journal of Otorhinolaryngology
                Abbreviated Title: Braz. j. otorhinolaryngol.
                Publisher: Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. (São Paulo, SP, Brazil )
                ISSN (Print): 1808-8694
                ISSN (Electronic): 1808-8686
                Publication date (Print and electronic): December 2009
                Volume: 75
                Issue: 6
                Pages: 847-851
                Affiliations
                [01] orgnameUniversidade Federal do Rio Grande do Sul orgdiv1faculdade de Medicina
                Article
                Publisher ID: S1808-86942009000600013 Publisher ID: S1808-8694(09)07500613
                SO-VID: f18d646f-5dff-45e1-b9b2-fc2f6f961ff1
                License:

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                Date received : 21 September 2008
                Date accepted : 25 August 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 28, Pages: 5
                Product

                SciELO Brazil

                Categories
                Subject: Artigos Originais

                Keywords: otitis,mitomicina C,otite,radiofrequência,mitomycin C,radiofrequency
                Data availability:
                Keywords: otitis, mitomicina C, otite, radiofrequência, mitomycin C, radiofrequency

                Comments

                Comment on this article