Bariatric surgery at Oslo University Hospital 2004–14
Background:
Bariatric surgery has been performed at Oslo University Hospital since 2004. We wished to describe patient characteristics, use of surgical methods and perioperative complications in the period 2004-14.
Material And Method:
We performed a retrospective analysis of prospective data collected for the period 2004-14. Complications include events during hospitalisation and up to 6-8 weeks postoperatively.
Results:
Altogether 2 127 patients underwent surgery for morbid obesity, whereof 1 468 were women. Average age and body mass index were 42 years (range 17-73) and 46.2 kg/m2 (range 26-92). A total of 512 had a body mass index ≥ 50 kg/m2. Obesity-related sequelae were registered in 1 196 patients before surgery. Gastric bypass was performed in 1 966 patients, gastric sleeve resection in 122 (17 of these later underwent duodenal switch) and duodenal switch in 56 patients. All patients were operated laparoscopically, and four procedures were converted to laparotomy. Median hospitalisation time was two days (range 1-78). Complications were registered in 209 patients, 75 of whom had severe complications (grade ≥ IIIb on the Clavien-Dindo classification system). Patients with a body mass index ≥ 50 kg/m2 had a higher incidence of complications (12.5 % vs 8.9 %). Altogether 67 patients underwent further surgery. Six patients died, two of whom more than 30 days after the operation. The incidence of complications was reduced during the period.
Interpretation:
Bariatric surgery may be performed laparoscopically with a low incidence of complications and short hospitalisation times. A large proportion of the patients who underwent surgery had obesity-related sequalae.
Insights
Bariatric surgery for morbid obesity, performed laparoscopically, shows decreasing complication rates and short hospital stays. Many patients had pre-existing obesity-related health issues requiring surgical intervention.
Area of Science:
- Bariatric Surgery
- Obesity Management
- Laparoscopic Surgery
Background:
- Bariatric surgery has been conducted at Oslo University Hospital since 2004.
- Characterizing patient demographics, surgical techniques, and complications is crucial for improving outcomes.
Purpose of the Study:
- To describe patient characteristics undergoing bariatric surgery.
- To analyze the types of bariatric surgical methods employed.
- To report perioperative complications from 2004 to 2014.
Main Methods:
- Retrospective analysis of prospective data from 2004-2014.
- Inclusion of complications during hospitalization and up to 8 weeks post-surgery.
- Data collected on patient demographics, BMI, obesity-related sequelae, surgical procedures, and complications.
Main Results:
- 2,127 patients underwent surgery (1,468 women), with an average age of 42 and BMI of 46.2 kg/m2.
- Gastric bypass was the most common procedure (1,966 patients); 209 patients experienced complications, 75 severe.
- Higher BMI (≥50 kg/m2) correlated with increased complication rates (12.5% vs 8.9%); complication incidence decreased over time.
Conclusions:
- Laparoscopic bariatric surgery is associated with low complication rates and brief hospitalizations.
- A significant number of patients presented with pre-existing obesity-related health conditions.
- Continuous monitoring and procedural refinement led to reduced complication rates over the study period.


