Background: The aim of the study was to evaluate the results of laparoscopic Nissen fundoplication (LNF) with simultaneous percutaneous endoscopic gastrostomy (PEG) in children with gastroesophageal reflux (GER) disease documented by upper gastrointestinal contrast and/or pH monitoring and/or esophageal endoscopy. Methods: Fifteen LNF + PEGs were performed in children with pathologic antecedents: ten neurologically impaired children, two ORL (otorhinolaryngeal) pathologies. Two cases of AIDS, and one neuroblastoma. In one case, disruption of the fundoplication occurred during insufflation of the stomach. The child was reoperated on the 3rd day using an open procedure, so she was excluded from the results of the LNF. Results: Two children had postoperative complications: one with cardiac insufficiency, one case of dehydration. Fourteen LNFs were controlled at 3 months by gastroesophageal X-ray and pH-metry. The 14 gastroesophageal X-rays were normal in 12 cases; gastroesophageal reflux was present in two cases. Twelve pH monitorings were analyzed (two technical failures), the median time pH<4 was 0.2% (0–20). Only one pH monitoring was pathologic (pH<4: 20%). This recurrent reflux to led to a second LNF with a good clinical result. Conclusions: In conclusion, it is possible to perform LNF and PEG during the same operative procedure. Short-term results are satisfactory with 14% recurrent GER. Long-term results need to be evaluated.