Gastric Per-oral Endoscopic pyloromyotomy (G-POEM) or per-oral pyloromyotomy (POP) is a novel procedure recently described for treatment of medically refractory gastroparesis; however, its efficacy and safety is not clear in patients with postsurgical gastroparesis (PsGP). We conducted a systematic review and meta-analysis to determine the efficacy and safety of G-POEM in PsGP. A total of 6 studies were included in the analysis. The pooled rate of success by gastroparesis cardinal symptom index (GCSI) and 4-h gastric emptying study (GES) were 89.6% (95% C.I. 72.7-96.5) and 81.5% (95% CI 47.8-95.5) respectively. There was a statistically significant improvement in GCSI score after 3 months of G-POEM as compared with pre G-POEM GCSI scores (2.7 (95% C.I. 0-5.5) vs 8.2 (95% C.I. 5.4-11) (p = 0.007). The mean pre G-POEM 4 h GES was 93.8% (95% C.I. 42.3-145.3) with improvement in post G-POEM GES to 44.5% (95% C.I. 0-95)(p = 0.2). The pooled rate of total adverse events was 9% (95% C.I. 2.7-25.9). Our study showed a good clinical success of G-POEM in PsGP patients along with significant improvement in 3-month GCSI scores. There was an improvement of GES after G-POEM, but it did not reach statistical significance. In conclusion, G-POEM is an effective and safe treatment option for PsGP.
Keywords: Endoscopy; G-POEM; Gastroparesis; Myotomy; Peroral Pyloromyotomy.