Due to the fact current ASMBS statement (Kallies and you will Rogers, 2020) endorses SADI-S due to the fact an appropriate metabolic bariatric procedures, additionally, it highlights you to definitely knowledge out of much time-title cover and you will efficacy are still needed – a viewpoint that is supported by the studies revealed a lot more than.
Yashkov et al (2021) stated that there are only a small number of studies providing a comparison between SADI-S and Hess-Marceau’s BPD/Duodenal Switch (RY-DS) operations. Data of patients who underwent open SADI-S (n 226) and RY-DS (n 528) were retrospectively studied. EWL(%), EBMIL(%), TWL(%), anti-diabetic effect, complications, and revision rate were compared between the 2 groups. 0 % versus 73.3 %) and TWL% (39.4 % versus 38.9 %) were statistically significantly better after SADI-S (p < 0.01, and p < 0.05, respectively), but not EBMIL% (p > 0.05). At nadir to 24-36 months, EWL, TBWL, and EBMIL after SADI-S was comparable to the RY-DS group. Up to the 4th and 5th year, better weight loss (TBWL, EBMIL, EWL) was observed after RY-DS than after SADI-S. Early complication rate was less (2.65 %) in the SADI-S group versus 5.1 % in the RY-DS. Protein deficiency and small bowel obstruction rates were also lower after SADI-S; 93.4 % of patients achieved total remission of their diabetes; 7.5 % of patients in the SADI-S group had symptoms of bile reflux, which was a main indication for revisions. The authors concluded that SADI-S has many advantages over RY-DS; however, weight loss and anti-diabetic effects after the 3rd year were marginally lower after SADI-S compared to RY-DS. SADI-S was less dangerous in terms of malabsorption and appeared to be a reasonable alternative to RY-DS as a metabolic operation. RY-DS could be implemented for weight regain and/or bile reflux after SADI-S.
This study had several drawbacks. This was a retrospective analysis of 2 modifications of BPD/DS, one of which (RY-DS) had been performed between 2003 and 2015 and another one (SADI-S), since 2014. For this reason, these investigators compared more recent information regarding 5-year anti-diabetic effects of SADI-S with their preliminary published data regarding 5-year results of RY-DS. There was no learning curve period in the SADI-S group, but there was in RY-DS group. Although the initial weight of the patients in the SADI-S group was higher (p < 0.01), they were also taller, so there was no statistically significant difference in the initial BMI between the 2 groups. More patients from the SADI-S group suffered from diabetes mellitus type 2 (DM2). In the period when thee investigators used SADI-S, a significant number of "easier" patients were suggested as candidates for a sleeve gastrectomy. In cases of DM2, SADI-S was preferable over a sleeve gastrectomy alone. Furthermore, the percentage of patients with DM2 has increased over the last 5 to 10 years because more patients considered their diabetes to be a more significant health problem than obesity itself. Another limitation was that both RY-DSs and SADI-Ss were performed by the authors using an open technique. Although laparotomies are infrequently used in metabolic surgery, in their experience both open RY-DSs and SADI-Ss could be performed safely by laparotomy with a minimal 30-day morbidity (0.38 % for RY-DS and 0.44 % for SADI-S) with low early morbidity (5.1 % and 2.65 % accordingly). In the recently published study from Brazil [Kim, 2016] using a laparoscopic technique, the authors demonstrated 18.9 % early complications after RY-DS and 13.3 % after SADI-S.
