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      Estenoses benignas de esôfago: abordagem endoscópica com velas de Savary-Gilliard Translated title: Benign strictures of the esophagus: endoscopic approach with Savary-Gilliard bougies

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          Abstract

          RACIONAL: As estenoses benignas de esôfago são complicações decorrentes de diversas causas. Possuem tratamentos similares, na maioria dos casos necessitando de dilatação endoscópica, no entanto a resposta terapêutica, tempo ideal de tratamento, assim como intervalo entre as sessões podem ser variáveis. OBJETIVO: Analisar, do ponto de vista endoscópico, as estenoses benignas de esôfago em 14 anos de experiência no Hospital Universitário Clementino Fraga Filho da Universidade Federal do Rio de Janeiro, RJ, avaliando etiologia, a extensão da estenose, o número de dilatações necessário para atingir resposta terapêutica satisfatória, assim como a relação entre a extensão da estenose e a resposta terapêutica. MÉTODO: Foram analisadas 2.568 dilatações endoscópicas com uso de velas de Savary-Gilliard em 236 pacientes, durante um período de 14 anos e 10 meses, até junho de 2007. RESULTADOS: A estenose péptica foi a causa mais freqüentemente encontrada, seguida pela estenose cáustica. As estenoses longas e cáusticas necessitaram de maior número de sessões para ausência de disfagia. Estenoses pépticas e curtas responderam melhor a número menor de sessões de dilatação. CONCLUSÃO: A estenose péptica foi a causa mais comum e respondeu bem à terapia endoscópica, em concordância com a literatura. As estenoses cáusticas foram as mais refratárias, principalmente as longas. Quanto maior foi a extensão da estenose, também maior foi o número de sessões necessárias. Estenoses curtas apresentaram boa evolução na maioria dos casos. O número de dilatações necessárias dependeu diretamente da causa e da extensão da estenose.

          Translated abstract

          BACKGROUND: Benign esophageal strictures are complications that result from different causes. They are usually similarly approached, most of the cases needing endoscopic dilation. However the response to therapy, optimal timing for treatment and interval between sessions can vary. AIM: The authors evaluate 14 years of experience with benign stricture of the esophagus from the endoscopic point of view in the "Clementino Fraga Filho" University Hospital, Federal University of Rio de Janeiro, RJ, Brazil. They evaluated etiology, length of stricture, number of dilations needed to reach satisfactory therapeutic response, and the relation between length of stricture and therapeutic response. METHODS: We analyzed 2,568 endoscopic dilations using Savary-Gilliard dilators in 236 patients. The follow up period was 14 years and 10 months, until June of 2007. RESULTS: Peptic strictures were the more frequent, followed by caustic strictures. Long strictures and caustic strictures needed more sessions to abolish dysphagia. Peptic strictures and short ones had better response to a smaller number of sessions. CONCLUSION: In this study, peptic strictures were the commonest etiology and responded best to endoscopic therapy, in accordance with published literature. Caustic strictures were the most refractory, mainly the long segments. The longer the extension of stenosis, the greater was the number dilation sessions needed for relief. Short strictures had a good prognosis in the great majority of cases. The number of dilations depended directly on the etiology and the extension of the stricture.

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          Most cited references24

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          Endoscopic dilation of benign esophageal strictures: report on 1043 procedures.

          Endoscopic dilation is considered the best treatment for most cases of benign esophageal stricture, although the best dilation technique and the kind of stricture is the most amenable to treatment is still controversial. We report on our experience on a large series of patients treated by dilation without the aid of fluoroscopy and compare the results of this therapy among patients with strictures from different causes. Between 1992 and 1997, we performed 1043 dilation sessions on 153 patients. Treatment was considered adequate if the esophageal lumen could be dilated up to the size of a 42F catheter. If the stricture recurred after initial successful treatment, the stricture was dilated again up to a 42F catheter. One hundred forty patients (96 men, 44 women; mean age, 54.1 yr) were followed-up for a mean of 20.5 months (4 to 62 months). Stricture's etiology was postsurgical in 80 patients, peptic in 37, caustic in 12, and from other causes in 11 patients. Adequate dilation was achieved in 93.5% of the patients (131 of 140). Patients with peptic strictures needed a median of three sessions to be adequately dilated during follow-up in comparison to five sessions among patients with postsurgical or caustic strictures (p = 0.07). There were four perforations, with one death (2.8% and 0.7% per patient and 0.4% and 0.1% per session, respectively). Endoscopic dilation without the aid of fluoroscopy is safe and effective in relieving dysphagia caused by benign strictures of different causes, although repeated sessions are necessary because of stricture recurrence.
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            Prospective randomized comparison of polyvinyl bougies and through-the-scope balloons for dilation of peptic strictures of the esophagus.

            We prospectively compared the efficacy of polyvinyl bougies (Savary type) passed over a guide wire and through-the-scope balloons for the dilation of peptic esophageal strictures in a randomized study. Thirty-four patients, 17 in each treatment arm, were studied. At entry, dysphagia was assessed according to a six-point scale (0, unable to swallow; 5, normal). The end-point for dilation was to size 45F or 15 mm. Discomfort during the procedure was graded on a four-point scale (0, no discomfort; 1, mild; 2, moderate; 3, severe discomfort). Follow-up visits were at 1 week, 1 month, 3 months, and every 3 months thereafter for 2 years. At the 1-week visit, the size of esophageal lumen was measured by 8-, 10-, and 12-mm pills. Both devices effectively relieved dysphagia. By life-table analysis, stricture recurrence during the first year of follow-up was similar in both groups, but during the second year, the risk of recurrence was significantly lower in patients whose strictures were dilated with balloons. Other advantages of balloons included the need for fewer treatment sessions to achieve the defined end-diameter for dilation (1.1 + 0.1 versus 1.7 + 0.2, p < .05), and less procedural discomfort (p < .05). The differences in luminal size after dilation, measured by the barium pill test, were not significant. Ability to pass the 12-mm pill and absence of dysphagia were correlated. Our results indicate that both devices are effective in relieving dysphagia, but balloons may have a long-term advantage.
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              AGA technical review on treatment of patients with dysphagia caused by benign disorders of the distal esophagus.

              This literature review and the recommendations therein were prepared for the American Gastroenterological Association Clinical Practice and Practice Economics Committee. The paper was approved by the committee on September 27, 1998.
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                Author and article information

                Journal
                ag
                Arquivos de Gastroenterologia
                Arq. Gastroenterol.
                Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia e Outras Especialidades - IBEPEGE. (São Paulo, SP, Brazil )
                0004-2803
                1678-4219
                December 2008
                : 45
                : 4
                : 290-294
                Affiliations
                [01] orgnameUFRJ orgdiv1HUCFF orgdiv2Serviço de Gastroenterologia
                [02] orgnameUFRJ orgdiv1Faculdade de Medicina orgdiv2Departamento de Clínica Médica
                [03] orgnameUFRJ orgdiv1Faculdade de Medicina
                Article
                S0004-28032008000400006 S0004-2803(08)04500406
                02dba701-7693-4a98-afa2-95a7add197df

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

                History
                : 08 November 2007
                : 10 March 2008
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 27, Pages: 5
                Product

                SciELO Brazil

                Categories
                Artigos Originais

                Esofagoscopia,Estenose esofágica,Dilatação,Esophageal stenosis,Dilatation,Esophagoscopy

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