Multichannel intraluminal impedance and pH-metry for investigation of symptomatic gastroesophageal reflux disease.
نویسندگان
چکیده
BACKGROUND Combined multichannel intraluminal impedance and pH-metry (MII-pH) is a technique that enables monitoring of gastroesophageal reflux independent of its acidity. AIM To investigate the utility of MII-pH in the clinical investigation of patients with gastroesophageal reflux disease (GERD) symptoms. METHODS 32 consecutive patients underwent 24-hour ambulatory MII-pH. 16 patients were on PPI (PPI+) therapy and 16 were taking no acid-suppressive medication (PPI-). We investigated the pattern of reflux by means of acid and nonacid reflux and the relation to typical and atypical symptoms. In addition, we investigated the symptom association by using the symptom index. RESULTS Symptom-related acid reflux was higher in the PPI+ group (33 vs. 25%) and symptom-related nonacid reflux was higher in the PPI- group (36 vs. 21%). The association between type of symptoms and the association to reflux is highly significant (p < 0.001) in the PPI- group. In this group the association of acid reflux is more likely to correlate with typical symptoms and the association of nonacid reflux is more likely to be associated with atypical symptoms. CONCLUSIONS These data show that nonacid reflux can be associated with symptoms in patients with GERD symptoms. The diagnostic value of MII-pH is independent of PPI therapy.
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ورودعنوان ژورنال:
- Digestive diseases
دوره 25 3 شماره
صفحات -
تاریخ انتشار 2007