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Surg Obes Relat Dis. 2019 Feb;15(2):187-193. doi: 10.1016/j.soard.2018.11.005. Epub 2018 Nov 14.

Sleeve gastrectomy in the German Bariatric Surgery Registry from 2005 to 2016: Perioperative and 5-year results.

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Municipal Hospital Karlsruhe, Karlsruhe, Germany. Electronic address:
SRH Municipal Hospital Gera, Gera, Germany; Institute of Quality Assurance at Otto-von Guericke University Magdeburg, Magdeburg, Germany.
StatConsult Magdeburg, Magdeburg, Germany.
University Hospital Magdeburg, Department of Surgery, Magdeburg, Germany.



Recently, sleeve gastrectomy (SG) has become one of the most important procedures in bariatric surgery. Short-term results show that SG is a feasible, safe, and effective operation treating obesity and its related co-morbidities. Now, the main focus is on long-term data after SG.


The aim of this study was to analyze perioperative and long-term results after SG in the German Bariatric Surgery Registry.


National database, Germany.


Perioperative data of primary SG (n = 21525) and follow-up data for 5 years ± 6 months (n = 435, 18.3% of 2375 SG performed between 2005 and 2011) were analyzed. After a review of the literature long-term results were compared with international data.


Mean baseline body mass index (BMI) was 51.1 kg/m2. Two hundred ninety-eight (68.5%) patients were female and 137 (31.5%) were male. Of patients, 90% had ≥1 co-morbidities. Mean operation time was 86 minutes. General postoperative complications occurred in 4.1% and special complications in 4.6% (staple-line leaks 1.6%). Mean maximum BMI loss was 18.0 ± 6.8 kg/m2 and BMI loss after 5 years was 14.3 ± 7.4 kg/m2 (P < .001). Co-morbidities, such as type 2 diabetes, hypertension, and sleep apnea, were significantly improved (P < .001). Gastroesophageal reflux was significantly impaired (P < .001).


The current results showed that SG is a safe and effective procedure in bariatric surgery. BMI loss was significant 5 years after SG. Most co-morbidities were significantly improved, but gastroesophageal reflux has often worsened. The follow-up rate was very low, which is a persistent problem in German bariatric surgery.


GERD; Long-term results; Morbid obesity; Sleep apnea; Sleeve gastrectomy; T2D

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