{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,25]],"date-time":"2026-10-25T00:17:09Z","timestamp":1792887429447,"version":"4.5.0"},"reference-count":23,"publisher":"Index Copernicus","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pol Przegl Chir"],"published-print":{"date-parts":[[2021,6,18]]},"abstract":"<jats:p>Initial reference search yielded 831 articles. After removing duplicates, 601 articles were evaluated through titles and abstracts. This produced 32 papers suitable for full-text review. Four articles were excluded due to wrong study design, 3 because of the wrong type of intervention, 2 \u2013 the lack of primary outcome, 7 were duplicates and 11 were conference abstracts only. Finally, we enrolled 1 RCT and 4 comparative studies with a total of 838 patients, 307 in the LSG + HHR group and 531 in the LSG group (Tab. I.) [5, 10\u201313]. The flowchart of literature search and study selection is summarized in Fig. 1. &lt;\/br&gt; &lt;\/br&gt; GERD improvement was reported by 5 authors. Fig. 2. shows analysis based on non-event analysis. There were no significant differences between the analyzed studies, 107\/171 (62.6%) in HHR+ vs. 78\/131 (59.5%) in HHR-, P = 0.74. Heterogeneity between the analyzed studies was moderate, I2  = 66% (Fig. 2.). The \u201cde-novo\u201d GERD was reported in 5 studies. There were no statistically significant differences between the analyzed groups, 26\/139 (18.7%) in HHR+ vs. 101\/403 (25.1%) in HHR-, P = 0.77. Heterogeneity between the analyzed studies was moderate, I2  = 73% (Fig. 3.).\n\nnull\n\nOperative time was reported by 3 authors. In all studies, LSG with HHR was significantly longer than LSG alone. When the random effects model was used, the difference between groups was statistically insignificant with heterogeneity of I2  = 98%. Sensitivity analysis showed that the study by Lasnibat is responsible for all heterogeneity. After excluding this study the difference was statistically significant (I2  = 0%, P &lt; 0.01). Since all studies showed operative time in favor of LSG, despite high heterogeneity, a fixed effects model was used.  &lt;\/br&gt; &lt;\/br&gt; Morbidity was reported in 3 studies. There were no statistically significant differences in any study as well as when the data was pooled, 9\/132(6.8%) in LSG +HHR vs. 11\/148(7.4%); P = 0.97. The heterogeneity between the studies was low, I2  = 8% (Fig. 5.).\n\n<\/jats:p>","DOI":"10.5604\/01.3001.0014.9356","type":"journal-article","created":{"date-parts":[[2021,7,5]],"date-time":"2021-07-05T08:56:19Z","timestamp":1625475379000},"page":"1-6","source":"Crossref","is-referenced-by-count":16,"title":["Hiatal hernia repair during laparoscopic sleeve gastrectomy:\nsystematic review and meta-analysis on gastroesophageal\nreflux disease symptoms changes"],"prefix":"10.5604","volume":"93","author":[{"given":"Piotr","family":"Ma\u0142czak","sequence":"first","affiliation":[{"name":"Department of Medical Didactics, Jagiellonian University Medical College, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Magdalena","family":"Pisarska-Adamczyk","sequence":"additional","affiliation":[{"name":"Department of Medical Didactics, Jagiellonian University Medical College, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piotr","family":"Zarzycki","sequence":"additional","affiliation":[{"name":"Department of Medical Didactics, Jagiellonian University Medical College, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Micha\u0142","family":"Wysocki","sequence":"additional","affiliation":[{"name":"Students' Scientific Group at 2\u2019nd Department of Surgery, Jagiellonian University Medical College, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piotr","family":"Major","sequence":"additional","affiliation":[{"name":"2\u2019nd Department of Surgery, Jagiellonian University Medical College, Krakow, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3689","reference":[{"key":"215954r1","doi-asserted-by":"crossref","unstructured":"Liu J., Baidal J.W., Fennoy I. et al.: The Prevalence of Co-morbidities inAdult and Adolescent Bariatric Surgery Candidates. 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