Key result
Primary bariatric surgery shows a low ~3% 30-day major complication rate in real-world cohort.
Why the study?
National high-quality registries enable large-scale evaluations of bariatric surgery outcomes, but international comparisons of perioperative complications are lacking.
What are the perioperative complication and mortality rates of primary bariatric surgery in North-Western Europe?
Observational (n=35,858)
Yes
What are the perioperative complication and mortality rates of primary bariatric surgery in North-Western Europe?
Primary bariatric surgery is safely performed in North-Western Europe, demonstrating a low major complication rate of 2.8% and a 30-day mortality rate of 0.04%.
Registry benchmarks inform bariatric complication surveillance; leaves open causal comparisons and practice-changing inferences.
The global prevalence of obesity has increased in recent decades, and bariatric surgery has become a part of the treatment algorithm of obesity. National high-quality registries enable large-scale evaluations of the use and outcome of bariatric surgery and may allow for improved knowledge. The main objective was to evaluate the rate and type of complications after primary bariatric surgery in three North-Western European countries using nationwide registries. Data from three registries for bariatric surgery were used (January 2015–December 2016). All registries have nationwide coverage with data on patient characteristics, obesity-related diseases, surgical technique, complications, grading of complications, reinterventions, readmissions, and mortality. Eligibility criteria for bariatric surgery were similar and included body mass index of ≥ 40.0 or ≥ 35.0 kg/m 2 , with one or more obesity-associated diseases. A total of 35,858 procedures (32,177 primary) were registered. The most common procedure was gastric bypass in the Netherlands (78.9%) and Sweden (67.0%), and sleeve gastrectomy in Norway (58.2%). A total of 904 (2.8%) patients developed major complications after primary surgery and 12 patients (0.04%) died within 30 days. Total number of complications between the registries were comparable ( p = 0.939). However, significant differences were seen for Clavien-Dindo Classification grades IIIb and IV ( p < 0.001). Pooled readmission rates were 4.3% ( n = 1386). Bariatric surgery is safely performed in the three evaluated countries. Standardization of registries and consensus of variables are essential for international comparison and may contribute to improved quality of treatment across nations.
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Poelemeijer et al. (2018) conducted an observational in Obesity (n=35,858). Primary bariatric surgery was evaluated on 30-day major complications (Clavien-Dindo grade ≥ IIIb). Primary bariatric surgery in North-Western Europe demonstrated a low 30-day major complication rate of 2.8% and a mortality rate of 0.04%.
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