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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p class="elsevierStyleSimplePara elsevierViewall">In patients with cystic fibrosis&#44; bronchial hyperreactivity is a common finding that has not been conclusively associated with atopy&#46; The objective of the present study was to determine the relationship between chronic colonization or infection with <span class="elsevierStyleItalic">Pseudomonas aeruginosa</span> and bronchial hyperreactivity in a group of patients with cystic fibrosis&#46;</p> <span class="elsevierStyleSectionTitle">Patients and methods</span><p class="elsevierStyleSimplePara elsevierViewall">A nonspecific histamine bronchial provocation test was administered to a group of 32 cystic fibrosis patients with a mean &#40;SD&#41; age of 11&#46;25 &#40;3&#46;7&#41; years&#46; The presence of atopy and of chronic colonization or infection with <span class="elsevierStyleItalic">P aeruginosa</span> was also studied&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p class="elsevierStyleSimplePara elsevierViewall">Nine of the 32 patients &#40;28&#46;1&#37;&#41; studied showed bronchial hyperreactivity&#46; The clinical status of these 9 patients was significantly worse and all were colonized or infected with <span class="elsevierStyleItalic">P aeruginosa</span>&#46; Atopy was present in 17 of the 32 patients &#40;53&#46;1&#37;&#41; in the study group&#44; but in only 3 of the 9 patients &#40;33&#46;3&#37;&#41; with bronchial hyperreactivity&#46; Bronchial hyperreactivity was significantly associated with colonization or infection with <span class="elsevierStyleItalic">P aeruginosa</span> &#40;<span class="elsevierStyleItalic">P</span>&#60;&#46;001&#41;&#44; but not with atopy &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;12&#41;&#46; In the patients without atopy&#44; colonization was significantly associated with bronchial hyperreactivity &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;017&#41;&#46; In the group with normal lung function &#40;forced expiratory volume in 1 second &#8805;80&#37;&#41; this association was also significant &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;044&#41;&#44; while the association between bronchial hyperreactivity and atopy was not &#40;<span class="elsevierStyleItalic">P</span>&#61;&#46;11&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusions</span><p class="elsevierStyleSimplePara elsevierViewall">The results of the present study suggest that in patients with cystic fibrosis&#44; bronchial hyperreactivity may be associated with colonization or infection with <span class="elsevierStyleItalic">P aeruginosa</span>&#44; and that this may be a more important risk factor for bronchial hyperreactivity than atopy&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p class="elsevierStyleSimplePara elsevierViewall">La hiperreactividad bronquial &#40;HRB&#41; es un hallazgo com&#250;n en la fibrosis qu&#237;stica &#40;FQ&#41;&#44; que no se ha relacionado de forma concluyente con la atopia&#46; El objetivo del estudio ha sido investigar la relaci&#243;n existente entre la colonizaci&#243;n-infecci&#243;n cr&#243;nica por <span class="elsevierStyleItalic">Pseudomonas aeruginosa</span> y la HRB en un grupo de pacientes con FQ&#46;</p> <span class="elsevierStyleSectionTitle">Pacientes y m&#233;todos</span><p class="elsevierStyleSimplePara elsevierViewall">Se realiz&#243; la prueba de broncoprovocaci&#243;n inespec&#237;fica con histamina a un grupo de 32 pacientes con FQ cuya edad media &#177; desviaci&#243;n est&#225;ndar era de 11&#44;25 &#177; 3&#44;7 a&#241;os&#46; Adem&#225;s se investig&#243; en estos pacientes la existencia de atopia y colonizaci&#243;n-infecci&#243;n cr&#243;nica por <span class="elsevierStyleItalic">P&#46; aeruginosa</span>&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p class="elsevierStyleSimplePara elsevierViewall">De los 32 pacientes estudiados&#44; se encontr&#243; HRB en 9 &#40;28&#44;1&#37;&#41;&#44; cuya situaci&#243;n cl&#237;nica era significativamente peor&#46; Estos 9 pacientes con HRB presentaron todos colonizaci&#243;n-infecci&#243;n cr&#243;nica por <span class="elsevierStyleItalic">P&#46; aeruginosa</span>&#46; Ten&#237;an atopia 17 pacientes &#40;53&#44;1&#37;&#41; de la muestra estudiada&#44; pero s&#243;lo 3 &#40;33&#44;3&#37;&#41; de los 9 con HRB&#46; La HRB se asoci&#243; significativamente con la colonizaci&#243;n-infecci&#243;n cr&#243;nica por <span class="elsevierStyleItalic">P&#46; aeruginosa</span> &#40;p &#60; 0&#44;001&#41;&#44; pero no con la atopia &#40;p &#61; 0&#44;12&#41;&#46; Entre los pacientes sin atopia&#44; la colonizaci&#243;n se asoci&#243; significativamente con HRB &#40;p &#61; 0&#44;017&#41;&#46; Adem&#225;s&#44; en el grupo de pacientes con funci&#243;n pulmonar normal &#40;volumen espiratorio forzado en el primer segundo &#8805; 80&#37;&#41; esta asociaci&#243;n fue tambi&#233;n significativa &#40;p &#61; 0&#44;044&#41;&#44; mientras que la asociaci&#243;n entre HRB y atopia no lo fue &#40;p &#61; 0&#44;11&#41;&#46;</p> <span class="elsevierStyleSectionTitle">Conclusiones</span><p class="elsevierStyleSimplePara elsevierViewall">Los resultados del presente estudio indi-can que en pacientes con FQ la HRB podr&#237;a estar relacionada con la colonizaci&#243;n-infecci&#243;n cr&#243;nica por <span class="elsevierStyleItalic">P&#46; aeruginosa</span>&#44; que podr&#237;a ser un factor de riesgo de HRB m&#225;s importante que la atopia&#46;</p>"
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Vol. 44. Issue 4.
Pages 180-184 (January 2008)
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Vol. 44. Issue 4.
Pages 180-184 (January 2008)
Original Articles
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Association Between Chronic Colonization or Infection With Pseudomonas aeruginosa and Bronchial Hyperreactivity in Patients With Cystic Fibrosis
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José Valverde-Molinaa,
Corresponding author
jose.valverde@carm.es

Correspondence: Dr J. Valverde-Molina Servicio de Neumología Pediátrica, Hospital Los Arcos P.° de Colón, 54 30720 Santiago de la Ribera, Murcia, Spain
, Manuel Sánchez-Solísb,c, María Dolores Pastor-Viverob, Luis García-Marcosc
a Unidad de Neumología Pediátrica, Hospital Los Arcos, Santiago de la Ribera, Murcia, Spain
b Unidad de Neumología Pediátrica, Hospital Virgen de la Arrixaca, El Palmar, Murcia, Spain
c Instituto de Salud Respiratoria, Universidad de Murcia, Murcia, Spain
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Objective

In patients with cystic fibrosis, bronchial hyperreactivity is a common finding that has not been conclusively associated with atopy. The objective of the present study was to determine the relationship between chronic colonization or infection with Pseudomonas aeruginosa and bronchial hyperreactivity in a group of patients with cystic fibrosis.

Patients and methods

A nonspecific histamine bronchial provocation test was administered to a group of 32 cystic fibrosis patients with a mean (SD) age of 11.25 (3.7) years. The presence of atopy and of chronic colonization or infection with P aeruginosa was also studied.

Results

Nine of the 32 patients (28.1%) studied showed bronchial hyperreactivity. The clinical status of these 9 patients was significantly worse and all were colonized or infected with P aeruginosa. Atopy was present in 17 of the 32 patients (53.1%) in the study group, but in only 3 of the 9 patients (33.3%) with bronchial hyperreactivity. Bronchial hyperreactivity was significantly associated with colonization or infection with P aeruginosa (P<.001), but not with atopy (P=.12). In the patients without atopy, colonization was significantly associated with bronchial hyperreactivity (P=.017). In the group with normal lung function (forced expiratory volume in 1 second ≥80%) this association was also significant (P=.044), while the association between bronchial hyperreactivity and atopy was not (P=.11).

Conclusions

The results of the present study suggest that in patients with cystic fibrosis, bronchial hyperreactivity may be associated with colonization or infection with P aeruginosa, and that this may be a more important risk factor for bronchial hyperreactivity than atopy.

Key words:
Atopy
Cystic fibrosis
Bronchial hyperreactivity
Pseudomonas aeruginosa
Objetivo

La hiperreactividad bronquial (HRB) es un hallazgo común en la fibrosis quística (FQ), que no se ha relacionado de forma concluyente con la atopia. El objetivo del estudio ha sido investigar la relación existente entre la colonización-infección crónica por Pseudomonas aeruginosa y la HRB en un grupo de pacientes con FQ.

Pacientes y métodos

Se realizó la prueba de broncoprovocación inespecífica con histamina a un grupo de 32 pacientes con FQ cuya edad media ± desviación estándar era de 11,25 ± 3,7 años. Además se investigó en estos pacientes la existencia de atopia y colonización-infección crónica por P. aeruginosa.

Resultados

De los 32 pacientes estudiados, se encontró HRB en 9 (28,1%), cuya situación clínica era significativamente peor. Estos 9 pacientes con HRB presentaron todos colonización-infección crónica por P. aeruginosa. Tenían atopia 17 pacientes (53,1%) de la muestra estudiada, pero sólo 3 (33,3%) de los 9 con HRB. La HRB se asoció significativamente con la colonización-infección crónica por P. aeruginosa (p < 0,001), pero no con la atopia (p = 0,12). Entre los pacientes sin atopia, la colonización se asoció significativamente con HRB (p = 0,017). Además, en el grupo de pacientes con función pulmonar normal (volumen espiratorio forzado en el primer segundo ≥ 80%) esta asociación fue también significativa (p = 0,044), mientras que la asociación entre HRB y atopia no lo fue (p = 0,11).

Conclusiones

Los resultados del presente estudio indi-can que en pacientes con FQ la HRB podría estar relacionada con la colonización-infección crónica por P. aeruginosa, que podría ser un factor de riesgo de HRB más importante que la atopia.

Palabras clave:
Atopia
Fibrosis quística
Hiperreactividad bronquial
Pseudomonas aeruginosa
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Copyright © 2008. Sociedad Española de Neumología y Cirugía Torácica (SEPAR)
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