Reasons of PEG failure to eliminate gastroesophageal reflux in mechanically ventilated patients

Douzinas, Emmanuel E.; Andrianakis, Ilias; Livaditi, Olga; Bakos, Dimitrios; Flevari, Katerina; Goutas, Nikos; Vlachodimitropoulos, Dimitrios; Tasoulis, Marios-Konstantinos; Betrosian, Alex P.; Barkin, Jamie S.
November 2009
World Journal of Gastroenterology;11/21/2009, Vol. 15 Issue 43, p5455
Academic Journal
AIM: To investigate factors predicting failure of percutaneous endoscopic gastrostomy (PEG) to eliminate gastroesophageal reflux (GER). METHODS: Twenty-nine consecutive mechanically ventilated patients were investigated. Patients were evaluated for GER by pH-metry pre-PEG and on the 7th post-PEG day. Endoscopic and histologic evidence of reflux esophagitis was also carried out. A beneficial response to PEG was considered when pH-metry on the 7th post-PEG day showed that GER was below 4%. RESULTS: Seventeen patients responded (RESP group) and 12 did not respond (N-RESP) to PEG. The mean age, sex, weight and APACHE II score were similar in both groups. GER (%) values were similar in both groups at baseline, but were significantly reduced in the RESP group compared with the N-RESP group on the 7th post-PEG day [2.5 (0.6-3.8) vs 8.1 (7.4-9.2, P < 0.001)]. Reflux esophagitis and the gastroesophageal flap valve (GEFV) grading differed significantly between the two groups (P = 0.031 and P = 0.020, respectively). Histology revealed no significant differences between the two groups. CONCLUSION: Endoscopic grading of GEFV and the presence of severe reflux esophagitis are predisposing factors for failure of PEG to reduce GER in mechanically ventilated patients.


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