Objective: To determine the prevalence of gastroesophageal reflux disease (GERD) and to evaluate its clinical presentation, as well as the esophageal function profile in patients with idiopathic pulmonary fibrosis (IPF). Methods: In this prospective study, 28 consecutive patients with IPF underwent stationary esophageal manometry, 24-h esophageal pH-metry and pulmonary function tests. All patients also completed a symptom and quality of life in GERD questionnaire. Results: In the study sample, the prevalence of GERD was 35.7%. The patients were then divided into two groups: GERD+ (abnormal pH-metry; n = 10) and GERD− (normal pH-metry; n = 18). In the GERD+ group, 77.7% of the patients presented at least one typical GERD symptom. The pH-metry results showed that 8 (80%) of the GERD+ group patients had abnormal supine reflux, and that the reflux was exclusively in the supine position in 5 (50%). In the GERD+ and GERD− groups, respectively, 5 (50.0%) and 7 (38.8%) of the patients presented a hypotensive lower esophageal sphincter, 7 (70.0%) and 10 (55.5%), respectively, presenting lower esophageal dysmotility. There were no significant differences between the groups regarding demographic characteristics, pulmonary function, clinical presentation or manometric findings. Conclusions: The prevalence of GERD in the patients with IPF was high. However, the clinical and functional characteristics did not differ between the patients with GERD and those without.Keywords: Pulmonary fibrosis; Gastroesophageal reflux; Prevalence; Manometry; Esophageal pH monitoring. ResumoObjetivo: Determinar a prevalência da doença do refluxo gastroesofágico (DRGE) e sua apresentação clínica, além do perfil funcional do esôfago em pacientes com fibrose pulmonar idiopática (FPI). Métodos: Foram avaliados prospectivamente 28 pacientes com FPI. Os pacientes foram submetidos à esofagomanometria estacionária, pHmetria de 24 h e testes de função pulmonar, assim como responderam a questionários sobre sintomas e qualidade de vida em DRGE. Resultados: A prevalência de DRGE foi de 35,7%. Os pacientes foram divididos em dois grupos: grupo DRGE+ (pHmetria anormal; n = 10), e grupo DRGE− (pHmetria normal; n = 18). No grupo DRGE+, 77,7% dos pacientes apresentavam pelo menos um sintoma típico de DRGE. Nesse grupo de pacientes, 8 (80%) apresentaram refluxo em posição supina, e 5 (50%) apresentaram refluxo exclusivamente nessa posição. Nos grupos DRGE+ e DRGE−, respectivamente, 5 (50,0%) e 7 (38,8%) dos pacientes apresentaram hipotonia do esfíncter esofágico inferior, assim como 7 (70,0%) e 10 (55,5%) apresentaram hipomotilidade esofágica. Não houve diferenças significativas entre os grupos quanto a características demográficas, função pulmonar, apresentação clínica ou achados manométricos. Conclusões: A prevalência de DRGE nos pacientes com FPI foi elevada. Entretanto, as características clínicas e funcionais não diferiram significativamente entre os pacientes com e sem DRGE.Descritores: Fibrose pulmonar; Refluxo gastroesofágico; Prevalência; Manome...
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