Barberio G, Ruggeri C, Pajno G B, Morabito L, Pollicino A, Di Pasquale F, Terranova M L
Minerva Pediatr. 1989 Jul;41(7):363-6.
Gastroesophageal reflux (GER) may contribute to the persistence of asthma and may be triggered and/or exacerbated by treatment with bronchodilatory and cortisone drugs. For this reason, GER should be suspected in patients with asthma non-responsive to treatment. In fact in this series 24 hour pH monitoring revealed GER in 7 out of 9 (77%) patients with persistent asthma. The use of a personally developed diagnostic protocol permitted the identification of various situations in 4 patients who completed the study: one coincidental association, one GER caused by theophylline and constituting the main cause of the bronchial obstruction.