Department of Pulmonary Medicine,
Department of Pathology, Hazrate- Rasoul Akram Hospital, Iran University of Medical Sciences, TEHRAN-IRAN.
Background: Recently, research of indirect evidence suggested a possible association between Helicobacter pylori and pulmonary disease. This study aimed to determine if H. pylori could be detected in endobronchial specimens collected from patients undergoing bronchoscopy. Materials and Methods: This prospective study was conducted on 34 consecutive patients with any type of lung disease undergoing bronchoscopy in which biopsy was required for their diagnosis. A written informed consent was obtained from all participants. Three bronchial mucosa biopsy samples were obtained using fenestrated biopsy forceps. One sample was used to determine urease activity, the second one for histopathological examination, and the third one for diagnosis. All subjects were fully informed regarding the gastroesophageal reflux disorder (GERD) Questionnaire. Results: There were 34 patients with pulmonary diseases (12 males and 22 females, mean age 58.2±18.2 years) out of which, 11 (32.4%) had GERD. No significant difference was found between the histopathological assay and GERD. Conclusion: Our study found no direct evidence supporting the theory that H. pylori may cause pulmonary disease and no relation with GERD was detected. However, a possible indirect role could not be excluded. Further studies in patients with GERD and lung disease may reveal a potential pathogenic link between H. pylori and pulmonary disease. (Tanaffos2011; 10(1): 31-36)