• Gökhan Berktuğ Bahadır, Caner İsbir, Aslınur Sagun, Hakan Taşkınlar, Handan Birbicer, and Ali Naycı.
• Department of Pediatric Surgery, Gülhane Training and Research Hospital, Ankara-Türkiye.
• Ulus Travma Acil Cer. 2022 Oct 1; 28 (10): 144914541449-1454.

BackgroundThe increased intra-abdominal pressure during laparoscopic surgical procedures was reported to be a factor in the development of gastroesophageal reflux. This study evaluated the presence of gastroesophageal reflux and associated factors using 24-h pH monitoring in children undergoing laparoscopic appendectomy.MethodsChildren who underwent laparoscopic surgery for presumed acute appendicitis between June 2017 and June 2018 were included in the study. After pre-operative endotracheal intubation, pH catheters were placed for 24-h esophageal pH monitoring. Relationships between gastroesophageal reflux and procedure time, pre-operative fasting time, age, weight, and body mass index (BMI) were evaluated.ResultsA total of 60 pediatric patients were included in the study. Their mean (SD) age was 11.82 (3.71) years (range, 4-17 years). The mean (SD) body weight was 41.27 (16.72) kg (range, 15-90 kg) and the mean (SD) BMI were 17.96 (4.37). The mean pre-operative fasting time was 15.52 (12.1) h, while the mean operative time was 38.42 (17.96) min. Lower age and weight were significantly associated with the presence of post-operative gastroesophageal reflux (p<0.05). Mean procedure time, mean pre-operative fasting time, and BMI were not significantly associated with intra- or post-operative gastroesophageal reflux (p>0.05).ConclusionThe lack of a significant relationship between mean procedure time and gastroesophageal reflux suggests that the mean duration of the laparoscopic procedures performed in this study is safe in terms of gastroesophageal reflux. The results also indicate that young age and low weight should be considered risk factors for gastroesophageal reflux in pediatric patients undergoing laparoscopic appendectomy.

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