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array:18 [ "pii" => "13051507" "issn" => "15792129" "estado" => "S300" "fechaPublicacion" => "2003-09-01" "documento" => "article" "crossmark" => 0 "subdocumento" => "fla" "cita" => "Arch Bronconeumol. 2003;39:379-81" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:2 [ "total" => 2786 "formatos" => array:3 [ "EPUB" => 118 "HTML" => 2075 "PDF" => 593 ] ] "itemSiguiente" => array:15 [ "pii" => "13051508" "issn" => "15792129" "estado" => "S300" "fechaPublicacion" => "2003-09-01" "documento" => "article" "crossmark" => 0 "subdocumento" => "fla" "cita" => "Arch Bronconeumol. 2003;39:382-6" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:2 [ "total" => 5667 "formatos" => array:3 [ "EPUB" => 105 "HTML" => 4914 "PDF" => 648 ] ] "en" => array:11 [ "idiomaDefecto" => true "titulo" => "Prognosis of Mono- and Polydrug Resistant Pulmonary Tuberculosis in the City of Santa Cruz, Bolivia" "tienePdf" => "en" "tieneTextoCompleto" => "en" "tieneResumen" => array:2 [ 0 => "en" 1 => "es" ] "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "382" "paginaFinal" => "386" ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Pronóstico de la tuberculosis pulmonar mono y polirresistente en la ciudad de Santa Cruz (Bolivia)" ] ] "contieneResumen" => array:2 [ "en" => true "es" => true ] "contieneTextoCompleto" => array:1 [ "en" => true ] "contienePdf" => array:1 [ "en" => true ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "JE Ollé Goig, R Sandy" "autores" => array:2 [ 0 => array:2 [ "Iniciales" => "JE" "apellidos" => "Ollé Goig" ] 1 => array:2 [ "Iniciales" => "R" "apellidos" => "Sandy" ] ] ] ] ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/13051508?idApp=UINPBA00003Z" "url" => "/15792129/0000003900000009/v0_201307090907/13051508/v0_201307090907/en/main.assets" ] "en" => array:10 [ "idiomaDefecto" => true "titulo" => "Comments on Recent Guidelines for the Treatment of Tuberculosis by the American Thoracic Society, the Centers for Disease Control and Prevention, and the Infectious Diseases Society of America" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "379" "paginaFinal" => "381" ] ] "autores" => array:1 [ 0 => array:3 [ "autoresLista" => "JA Caminero Luna" "autores" => array:1 [ 0 => array:3 [ "Iniciales" => "JA" "apellidos" => "Caminero Luna" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] ] ] ] "afiliaciones" => array:1 [ 0 => array:3 [ "entidad" => "Servicio de Neumología, Hospital de Gran Canaria Dr. Negrín, Las Palmas de Gran Canarias, Spain." "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] ] ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Comentarios a la reciente normativa de tratamiento de la tuberculosis de la ATS/CDC/IDS" ] ] "textoCompleto" => "<p class="elsevierStylePara">The American Thoracic Society (ATS) has just published extensive guidelines on the treatment of tuberculosis (TB).<span class="elsevierStyleSup">1</span> The document has many positive aspects but others that can be questioned or even criticized. Perhaps the first point in its favor is the fact that these recommendations, which take levels of evidence into consideration, have been accepted and approved by the Centers for Disease Control and Prevention (CDC) and the Infectious Diseases Society of America (IDSA), making it the document on the treatment of TB most widely accepted by the scientific societies of the United States. Another favorable aspect to mention is that the purpose of the guidelines is highlighted on the first page of the document, in a box under the table of contents, making it clear that they should be followed by countries with substantial economic resources. This is very important and has not been stated in previous ATS guidelines, causing the vast majority of private medical specialists in countries with scarce or middling economic resources (which bear the burden of 95% of the world's TB cases) to regard the guidelines as the procedures to follow without adapting them to local economic and epidemiologic situations, even when recommendations were inconsistent with those of their own national TB control programs. The measures to be adopted for the treatment and control of TB in rich countries, and for which these recommendations of the ATS are perfectly valid, are quite different from those of poor countries which should follow the guidelines of the World Health Organization<span class="elsevierStyleSup">2</span> and the International Union against Tuberculosis and Lung Diseases.<span class="elsevierStyleSup">3,4</span> Although aspects of treatments may be similar for both "worlds," methods of diagnosis, follow up, and control have very different protocols. The first point to underline, then, is that these guidelines are only valid for 5% of the world's TB sufferers, those that come from developed countries, Spain included.</p><p class="elsevierStylePara"> Perhaps the first two comments to make about this document should refer to its length (60 pages of the journal) and the range of treatments recommended: although the best treatment regimen is recognized to be 6 months long (2 months with isoniazid, rifampicin, pyrazinamide, and ethambutol, followed by 4 months with isoniazid and rifampicin) administered daily or intermittently, many different therapeutic strategies are recommended. Consensus documents and official recommendations of scientific societies should be brief and concise to encourage their being read by the largest possible number of people concerned, thereby increasing their impact. Detailed explanations on each and every point can be left to the manuals and treatises of the same scientific societies.<span class="elsevierStyleSup">4</span> Furthermore, if a therapeutic strategy is accepted as optimal, in certain circumstances recommending others can only generate confusion, possible mistakes and, above all, improvisations by some practitioners, a situation that can lead to increased resistance to the drugs.<span class="elsevierStyleSup">4</span></p><p class="elsevierStylePara">The ATS recommendations introduce certain radical changes, 4 of which deserve special attention both for being new and, in some cases, questionable. The 4 changes are detailed below:</p><p class="elsevierStylePara"><span class="elsevierStyleItalic"> 1.</span> Treatment that includes the administration of isoniazid and rifapentine once a week for 4 months in the second phase, in human immunodeficiency virus seronegative patients with noncavitary chest radiographs and who have negative sputum smears at the end of the second month of treatment. This recommendation is based on 2 fine studies by the CDC<span class="elsevierStyleSup">5,6</span> which found, however, a high relapse rate with single drug resistance to rifamycin in human immunodeficiency virus seropositive patients.<span class="elsevierStyleSup">6</span> This once-weekly treatment did not prove to be more efficacious than the 6-month treatment with rifampicin in 2 phases (2 months with isoniazid, rifampicin, pyrazinamide, and ethambutol, followed by 4 months with isoniazid and rifampicin), so the only advantage is that it allows medication intake to be supervised in the second phase. The disadvantages, however, include making the overall treatment of TB patients more complicated and the cost much higher. Moreover, rifapentine is difficult to obtain and strict supervision of administration is absolutely essential to assure patients do not miss a single dose of medication.</p><p class="elsevierStylePara"><span class="elsevierStyleItalic"> 2.</span> The recommendation to prolong treatment to 9 months with isoniazid and rifampicin (2 months with isoniazid, rifampicin, pyrazinamide, and ethambutol, followed by 7 months with isoniazid and rifampicin), in patients who fulfill 2 conditions: cavitary radiography at the start of treatment and positive sputum smear at completion of 2 months of treatment. This recommendation was also based on a study by the CDC,<span class="elsevierStyleSup">5</span> as a consequence of the over 20% relapse rate in patients who fulfilled these 2 conditions and had been treated with the 6-month isoniazid regimen. Patients who had only one of the conditions had relapse rates of under 5% and those with neither condition, less than 2%. Despite the validity of this study,<span class="elsevierStyleSup">5</span> it does not demonstrate that the high relapse rate is corrected with the extension of the treatment to 9 months.</p><p class="elsevierStylePara"><span class="elsevierStyleItalic"> 3.</span> The possibility of suspending the treatment after 4 months completion in patients classified clinically and radiographically as having TB but whose sputum smear and culture are negative. If there is a clinical improvement in these patients by the end of the second month and the initial culture is confirmed as negative, the 2 months with isoniazid, rifampicin, pyrazinamide, and ethambutol, followed by 2 months with isoniazid and rifampicin regimen is recommended, as it was recommended as an alternative for inactive residual TB in the 1994 official ATS guidelines.<span class="elsevierStyleSup">7</span></p><p class="elsevierStylePara"><span class="elsevierStyleItalic"> 4.</span> Treatment with 4 to 6 second line drugs is recommended for patients who are carriers of strains resistant to isoniazid and rifampicin (multi-drug resistant [MDR]) and other first line drugs. This significant, controversial change in the handling of these complicated cases is apparently based on 3 studies<span class="elsevierStyleSup">8-10</span> in which better results were obtained using the increased number of drugs. However, on careful revision of the 3 studies, it is surprising to find that none of them compares treatment regimens or demonstrates that the increased number of drugs led to better results in the treatment of these patients. Thus important changes have been recommended based on 3 references that do not demonstrate that the changes are justified. The first reference is the study carried out by Goble et al<span class="elsevierStyleSup">8</span> at the Department of Medicine, National Jewish Center for Immunology and Respiratory Medicine, Denver (Colorado, USA), who published the results of treating 171 patients who were resistant to an average of 6 drugs including isoniazid and rifampin. Of the 134 patients that could be followed up, 87 (65%) responded to the treatment administered and 47 (35%) had no response. In the authors' univariate analysis, an unfavorable response was associated with 4 factors: prior administration of a larger number of drugs, treatment regimens with fewer drugs not used previously, resistance <span class="elsevierStyleItalic">in vitro</span> to a greater number of drugs, and male sex; however, only the first and last were statistically significant in a multivariate analysis. The second reference is the study by Park et al<span class="elsevierStyleSup">9</span> on the results of treating 107 Korean patients resistant to an average of 4 drugs including isoniazid and rifampin. There was sufficient follow up in 63 cases: 52 (82.5%) responded to treatment and 11 (17.5%) had no response. Univariate analysis showed that the only factor that was significantly associated with an unfavorable response was resistance to a greater number of drugs in vitro, and that factor continued to be significant in the logistic regression model. Finally, the third reference is the study carried out in the Netherlands by Geerligs et al,<span class="elsevierStyleSup">10</span> on the treatment of 44 patients with resistance to an average of 5 drugs including isoniazid and rifampicin. However, only 3 of the 44 patients were resistant to 5 drugs considered to be first line. The patients were treated with an average of 6 drugs including isoniazid in 36 cases despite the patients' proven resistance. The results were that 33 patients (75%) were cured, 6 (14%) died (only 1 from TB), and the rest were being followed up. No statistical analysis was made in this study to relate good or bad responses to particular factors.</p><p class="elsevierStylePara"> Thus none of the 3 articles concluded that the use of 4 to 6 drugs was associated with better results.<span class="elsevierStyleSup">1</span> Indeed, the only conclusion that can be drawn is that in these 3 studies acceptable results were obtained using more than 4 drugs, with favorable responses that oscillate between 65%<span class="elsevierStyleSup">8</span> and 82.5%.<span class="elsevierStyleSup">9</span> However, it should be remembered that in the 1950's and 1960's, before the discovery of rifampicin, many studies on patients resistant to isoniazid and streptomycin, among other drugs, were published that had very good results using only 3 drugs.<span class="elsevierStyleSup">11-16</span> Many of these studies predated ethambutol, which means that treatment of these patients was just as complex as the MDR cases today that were analyzed in the articles mentioned.<span class="elsevierStyleSup">8-10</span></p><p class="elsevierStylePara"> This unsupported change in the ATS guidelines for the treatment of these patients is remarkable in that the official guidelines of 1965<span class="elsevierStyleSup">17</span> and 1966<span class="elsevierStyleSup">18</span> recommended the use of only 2 or 3 new drugs in these cases. There was a certain shift in the 1994 guidelines,<span class="elsevierStyleSup">7</span> where the use of at least 3 new drugs was recommended, without any references that justified the change. The administration of 4, 6, or more drugs, apart from not being bacteriologically justifiable, insures a high probability of intolerance on the part of the patient, who will abandon treatment or demand that medication be suspended when serious adverse reactions occur.</p><p class="elsevierStylePara"> There are two further comments to be made on the guidelines analyzed here. The first concerns the recommendation to use ethambutol on all initial patients as a fourth first line drug. This was included in the 1994 guidelines,<span class="elsevierStyleSup">7</span> clearly contradicting the 1986 guidelines<span class="elsevierStyleSup">19</span> which had recommended the use of only 3 drugs in the initial phase. The change in the 1994 guidelines was due to the increase in the rate of initial resistance to isoniazid that had been observed in the United States. There is no explanation given for continuing to use the fourth drug in the current guidelines. As regards Spain, there has been no national study carried out on resistances to antituberculosis drugs but the results that have been gathered in different regions of the country<span class="elsevierStyleSup">20-22</span> indicate a low rate of initial resistance to isoniazid. This means that use of ethambutol in the first phase is not justified in Spain, except maybe in the cases of immigrants who come from areas where TB is highly endemic and of other groups at risk of being carriers of resistant strains.</p><p class="elsevierStylePara">The second comment concerns extrapulmonary TB, which is thoroughly analyzed in the document; the same 6-month treatment (2 months with isoniazid, rifampicin, pyrazinamide, and ethambutol, followed by 4 months with isoniazid and rifampicin) as for pulmonary TB is recommended except in the case of meningeal TB where the recommended treatment is extended to 9 to 12 months.<span class="elsevierStyleSup">1</span> Although there are no randomized controlled trials that compare the 6-month treatment with longer ones in the treatment of meningeal TB, there are trials that demonstrate the validity of the 6-month regimen,<span class="elsevierStyleSup">23</span> so, in order to simplify and standardize the treatment of all forms of TB, it might be better to recommend the 6-month regimen for the treatment of meningeal TB.</p><p class="elsevierStylePara">To conclude these comments and criticisms on the fine recommendations for TB treatment issued by the ATS/CDC/IDSA,<span class="elsevierStyleSup">1</span> this author believes that all initial forms of TB should be treated with the same 6-month regimen, which in Spain should not include ethambutol in the first phase (2 months with isoniazid, rifampicin, and pyrazinamide, followed by 4 months with isoniazid and rifampicin). Moreover, patients who are carriers of MDR strains should have a retreatment schedule of only 3 drugs that they have never received and to which they are susceptible.</p><hr></hr><p class="elsevierStylePara">Correspondence: Dr. J.A. Caminero Luna.<br></br> Servicio de Neumología. Hospital de Gran Canaria Dr. Negrín.<br></br> Barranco de la Ballena, s/n. 35020 Las Palmas de Gran Canarias. Spain.</p><p class="elsevierStylePara">Manuscript received May 6, 2003. Accepted for publication May 13, 2003.</p>" "pdfFichero" => "260v39n09a13051507pdf001.pdf" "tienePdf" => true "bibliografia" => array:2 [ "titulo" => "Bibliography" "seccion" => array:1 [ 0 => array:1 [ "bibliografiaReferencia" => array:23 [ 0 => array:3 [ "identificador" => "bib1" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:3 [ "titulo" => "American Thoracic Society/Centers for Disease Control and Prevention/Infectious Diseases Society of America. Treatment of tuberculosis." 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Original language: English
Year/Month | Html | Total | |
---|---|---|---|
2024 November | 4 | 2 | 6 |
2024 October | 36 | 19 | 55 |
2024 September | 32 | 15 | 47 |
2024 August | 47 | 45 | 92 |
2024 July | 27 | 20 | 47 |
2024 June | 36 | 23 | 59 |
2024 May | 42 | 36 | 78 |
2024 April | 32 | 31 | 63 |
2024 March | 21 | 29 | 50 |
2024 February | 20 | 39 | 59 |
2023 March | 5 | 4 | 9 |
2023 February | 34 | 25 | 59 |
2023 January | 23 | 34 | 57 |
2022 December | 30 | 25 | 55 |
2022 November | 32 | 19 | 51 |
2022 October | 22 | 44 | 66 |
2022 September | 24 | 26 | 50 |
2022 August | 35 | 36 | 71 |
2022 July | 24 | 43 | 67 |
2022 June | 23 | 34 | 57 |
2022 May | 33 | 38 | 71 |
2022 April | 32 | 38 | 70 |
2022 March | 39 | 49 | 88 |
2022 February | 47 | 32 | 79 |
2022 January | 24 | 39 | 63 |
2021 December | 66 | 37 | 103 |
2021 November | 46 | 42 | 88 |
2021 October | 36 | 34 | 70 |
2021 September | 47 | 55 | 102 |
2021 August | 30 | 31 | 61 |
2021 July | 25 | 28 | 53 |
2021 June | 38 | 44 | 82 |
2021 May | 63 | 28 | 91 |
2021 April | 65 | 69 | 134 |
2021 March | 21 | 12 | 33 |
2021 February | 18 | 13 | 31 |
2021 January | 19 | 13 | 32 |
2020 December | 19 | 13 | 32 |
2020 November | 12 | 7 | 19 |
2020 October | 10 | 5 | 15 |
2020 September | 17 | 7 | 24 |
2020 August | 21 | 12 | 33 |
2020 July | 16 | 12 | 28 |
2020 June | 24 | 8 | 32 |
2020 May | 32 | 16 | 48 |
2020 April | 22 | 11 | 33 |
2020 March | 32 | 13 | 45 |
2020 February | 59 | 14 | 73 |
2020 January | 22 | 9 | 31 |
2019 December | 24 | 12 | 36 |
2019 November | 16 | 11 | 27 |
2019 October | 13 | 15 | 28 |
2019 September | 31 | 5 | 36 |
2019 August | 21 | 8 | 29 |
2019 July | 15 | 13 | 28 |
2019 June | 12 | 4 | 16 |
2019 May | 27 | 11 | 38 |
2019 April | 23 | 12 | 35 |
2019 March | 41 | 25 | 66 |
2019 February | 37 | 11 | 48 |
2019 January | 20 | 2 | 22 |
2018 December | 27 | 17 | 44 |
2018 November | 35 | 19 | 54 |
2018 October | 39 | 11 | 50 |
2018 September | 20 | 14 | 34 |
2018 May | 6 | 0 | 6 |
2018 April | 17 | 4 | 21 |
2018 March | 10 | 4 | 14 |
2018 February | 11 | 5 | 16 |
2018 January | 18 | 5 | 23 |
2017 December | 27 | 4 | 31 |
2017 November | 14 | 6 | 20 |
2017 October | 18 | 9 | 27 |
2017 September | 30 | 4 | 34 |
2017 August | 47 | 8 | 55 |
2017 July | 20 | 8 | 28 |
2017 June | 41 | 20 | 61 |
2017 May | 28 | 4 | 32 |
2017 April | 30 | 7 | 37 |
2017 March | 25 | 7 | 32 |
2017 February | 11 | 3 | 14 |
2017 January | 15 | 2 | 17 |
2016 December | 23 | 4 | 27 |
2016 November | 29 | 9 | 38 |
2016 October | 33 | 9 | 42 |
2016 September | 40 | 6 | 46 |
2016 August | 30 | 8 | 38 |
2016 July | 17 | 3 | 20 |
2016 May | 1 | 0 | 1 |
2016 April | 4 | 0 | 4 |
2016 March | 4 | 0 | 4 |
2016 February | 1 | 0 | 1 |
2015 December | 3 | 0 | 3 |
2015 October | 25 | 8 | 33 |
2015 September | 35 | 8 | 43 |
2015 August | 22 | 16 | 38 |
2015 July | 38 | 7 | 45 |
2015 June | 29 | 7 | 36 |
2015 May | 35 | 6 | 41 |
2015 April | 28 | 9 | 37 |
2015 March | 31 | 8 | 39 |
2015 February | 22 | 5 | 27 |
2015 January | 26 | 5 | 31 |
2014 December | 24 | 4 | 28 |
2014 November | 28 | 8 | 36 |
2014 October | 29 | 10 | 39 |
2014 September | 25 | 8 | 33 |
2014 August | 30 | 5 | 35 |
2014 July | 40 | 11 | 51 |
2014 June | 37 | 6 | 43 |
2014 May | 34 | 6 | 40 |
2014 April | 41 | 9 | 50 |
2014 March | 52 | 9 | 61 |
2014 February | 62 | 8 | 70 |
2014 January | 30 | 7 | 37 |
2013 December | 24 | 8 | 32 |
2013 November | 30 | 5 | 35 |
2013 October | 58 | 6 | 64 |
2013 September | 64 | 9 | 73 |
2013 August | 37 | 10 | 47 |
2013 July | 45 | 23 | 68 |
2013 June | 25 | 4 | 29 |
2013 May | 33 | 3 | 36 |
2013 April | 17 | 4 | 21 |
2013 March | 8 | 4 | 12 |