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Vol. 31. Issue 7.
Pages 317-322 (October 1995)
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Vol. 31. Issue 7.
Pages 317-322 (October 1995)
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Evaluación diagnóstica de las técnicas rápidas del esputo frente a neumococo en la neumonía adquirida en la comunidad. Utilización del teorema de Bayes para su aplicación clínica
Evaluation of rapid sputum analysis in a community adquired pneumonía
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R. Menéndez Villanueva*
Servicio de Neumología. Hospital Universitario La Fe. Valencia
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El presente trabajo tiene por objeto cuantificar el valor diagnóstico de las técnicas inmunológicas o rápidas del esputo frente al neumococo, utilizando la sensibilidad y especificidad obtenidas en la literatura, para calcular sus valores predictivos positivo (VPP) y negativo (VPN) mediante las fórmulas de Bayes. De esta forma se calculan y comparan las ganancias diagnósticas de estas pruebas a diferentes probabilidades pretest. Con este fin, se realiza una revisión bibliográfica, mediante un MEDLINE, para extraer de los artículos la sensibilidad y especificidad de la contrainmunoelectroforesis (CIE), la coaglutinación (CoA) y aglutinación por látex (AL). Se calcula además la razón de probabilidad de los tres tests. Los resultados fueron: la mayor ganancia diagnóstica global se obtiene con la AL, el mayor incremento en el VPP lo proporciona la CoA, y el mayor incremento en el VPN la AL. La CIE es el test que ofrece menor ganancia diagnóstica. Estos tres tests son más rentables para prevalencias de neumococo intermedias que coinciden con las estimadas en nuestra población. Como conclusión la AL y la CoA incrementan la ganancia diagnóstica del neumococo en la neumonía adquirida en la comunidad (NAC) lo que es útil tanto para conocer la prevalencia del neumococo en nuestro medio como para decidir el tratamiento antibiótico inicial.

Palabras clave:
Neumonía
Neumococo
Contrainmunoelectroforesis
Coaglutinación
Aglutinación por látex
Esputo

This study aimed to quantify the diagnostic value of immunological techniques and methods for rapid analysis of sputum for pneumococcus, using sensitivity and specificity values reported in the literature to calculate positive and negative predictive valúes (PPV and NPV) according to Bayes formulas. Diagnostic gains of the test are calculated and compared to pretext probability. We lorated articles reporting sensitivity and specificity of counterimmunoelectrophoresis (CIE), coagglutination (CoA) and latex agglutination (LA) tests. We also calculated the probability ratios for the three tests. LA achieved the best overall diagnostic utility rating. CoA had the highest PPV, whereas LA offered the highest NPV. CIE was the least useful. These three tests are more useful at intermedíate levels of prevalence of pneumococcus, wich coincide with estímate in our population. We conclude that LA and CoA are of greater diagnostic utility for community acquired pneumonía, as they are useful for determining prevalence as well as for deciding initial antibiotic treatment.

Key words:
Pneumonia
Pneumococcus
Counterimmun trophoresis
Coagglutination
Latex agglutination
Sput
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Bibliografía
[1.]
V. Ausina.
Esputo y neumonía bacteriana: nuevas y viejas reflexiones en torno a una polémica de siempre (Editorial).
Enf Infec Microbiol Clin, 7 (1989), pp. 14-19
[2.]
J. Pachón, A. Verano.
Utilidad del esputo para el diagnóstico etiológico de las neumonías.
Enf Infec Microbiol Clin, 7 (1989), pp. 68-71
[3.]
E. Barrett-Connor.
The nonvalue of sputum culture in the diagnosis of pneumococcal pneumonía.
Am Rev Respir Dis, 103 (1971), pp. 845-847
[4.]
M. Lcvy, F. Dromer, N. Brion, F. Leturdu, C. Carbon.
Community-acquired pneumonia. Importancc of initial noninvasivc bacteriologic and radiographic investigations.
Chest, 92 (1988), pp. 43-48
[5.]
P.F. Griner, R.J. Mayewsky, A.I. Mushlin, P. Greenland.
Selection and interpretation of diagnostic test and procedures: principies and applications.
Ann Ínter Med, 94 (1981), pp. 553-600
[6.]
H.C. Sox.
Probability theory in the use of diagnostic tests: an introduction to critical study of the literature.
Ann Inter Med, 104 (1986), pp. 60-66
[7.]
D.L. Sackett, R.B. Haynes, P. Tugwell.
Epidemiología clínica. Una ciencia básica para la medicina clínica.
Ed. Díaz de Santos, (1989), pp. 79-178
[8.]
V. Ausina, P. Coll, M. Sambeat, et al.
Prospective study on the etiology of community acquired-pneumonia in children and adults in Spain.
Eur J Clin Microbiol Infec Dis, 7 (1988), pp. 343-347
[9.]
J. Pachón, M.D. Prados, F. Capote, J.A. Cuello, J. Garnacho, A. Verano.
Severe community-acquired pneumonía: aetiology, prognosis and treatment.
Am Rev Respir Dis, 142 (1990), pp. 369-373
[10.]
A. Telenti.
Estudio epidemiológico multicéntrico sobre neumonías en España.
Med Clin, 80 (1983), pp. 11-26
[11.]
M.S. Niederman, J.B. Bass, G.D. Campbell, et al.
Guidelines for the initial management of adults with community-acquired pneumonia: diagnosis, assesment of severity and initial antimicrobial therapy.
Am Rev Respir Dis, 148 (1993), pp. 1.418-1.426
[12.]
J. Dorca, S. Bello, J. Blanquer, et al.
Normativa sobre diagnóstico v tratamiento de las neumonías.
Ed. Doyma S.A., (1992),
[13.]
A. Örtqvist, J. Hedlund, L. Grillner, et al.
Aetiology, outcome and prognostic factors in community-acquired pneumonia requiring hospitalization.
Eur Respir J, 3 (1990), pp. 1.105-1.113
[14.]
M.A. Woodhead, J.T. Macfarlane, J.S. McCracken, D.H. Rose, R.G. Finmch.
Prospective study of the aetiology and outcome of pneumonía in the community.
Lancet, 1 (1987), pp. 671-674
[15.]
F.M. LaForce.
Antibacterial therapy for lower respiratoy tract infections in adults: a review.
Clin Infec Dis, 14 (1992), pp. 233-237
[16.]
J. Blanquer, R. Blanquer, R. Borrás, et al.
Aetiology of community acquired pneumonía in Valencia. Spain; a multicentric prospective study.
Thorax, 46 (1991), pp. 508-511
[17.]
P. Ansola, V. Sobradillo, F. Baranda, et al.
Neumonías adquiridas en la comunidad de Vizcaya.
Arch Bronconeumol, 26 (1990), pp. 103-107
[18.]
R.B. Brown.
Community-acquired pneumonía. Back to basics (Editorial).
Chest, 93 (1988), pp. 1-2
[19.]
J.G. Bartlett, S.M. Finegold.
Bacteriology of expectorated sputum with quantitative culture and wash technique compared to transtracheal aspirates.
Am Rev Respir Dis, 117 (1978), pp. 1.019-1.027
[20.]
J.C. Guckian, W.D. Christensen.
Quantitative culture and gram stain of sputum in pneumonía.
Am Rev Respir Dis, 118 (1978), pp. 997-1.005
[21.]
P. Venkatesan, J.T. MacFarlane.
Role of pneumococcal antigen in the diagnosis of pneumococcal pneumonía (Editorial).
Thorax, 47 (1992), pp. 329-331
[22.]
B.M. Farr, D.L. Kaiser, B.D.W. Flarrison, C.K. Connolly.
Prediction of microbial aetiology at admission to hospital for pneumonía from the presenting clinical features.
Thorax, 44 (1989), pp. 1.031-1.035
[23.]
J.T. MacFarlane, A.C. Miller, W.R.H. Smith, A.H. Morris, D.H. Rose.
Comparative radiographic features of community-acquired Legionaires disease, pnemococcal pneumonia, Mycoplasma pneumonia, and psittacosis.
Thorax, 39 (1984), pp. 28-33
[24.]
M. Farrington, D. Rubenstein.
Antigen detection in pneumococcal pneumonia.
J Infec, 23 (1991), pp. 109-116
[25.]
R.E. Schmid, J.P. Anhalt, A.D. Wold, T.F. Keys, J.A. Washington.
Sputum counterimmunoelectroforesis in the diagnosis of pneumococcal pneumonia.
Am Rev Respir Dis, 119 (1979), pp. 345-348
[26.]
A. Örtqvist, I. Jönsson, M. Kalin, A. Krook.
Comparison of three methods for detection of pneumococcal antigen in sputum of patients with community-acquired pneumonía.
Eur J Clin Microbiol Infec Dis, 8 (1989), pp. 956-961
[27.]
W.G. Boersma, A. Löwenberg, Y. Holloway, H. Kuttschrütter, J.A.M. Snijder, G.H. Koëter.
Pneumococcal capsular antigen detection and pneumococcal serology in patients with communityacquired pneumonía.
Thorax, 46 (1991), pp. 902-906
[28.]
W.G. Boersma, A. Ldwenberg, Y. Holloway, H. Kuttschrütter, J.A.M. Snijder, G.H. Koeter.
Pneumococcal antigen persistence in sputum from patients with community-acquired pneumonía.
Chest, 102 (1992), pp. 422-427
[29.]
P. Guzzetta, G.B. Toews, K.J. Robertson, A.K. Pierce.
Rapid diagnosis of community-acquired bacterial pneumonía.
Am Rev Respir Dis, 128 (1983), pp. 461-464
[30.]
T.J. Fagan.
Nomogram for Bayes’ theorem [carta].
N Engl J Med, 293 (1975), pp. 257
Copyright © 1995. Sociedad Española de Neumología y Cirugía Torácica
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