National Bariatric Surgery Registry (NBSR)

Results of Professor Ammori April 2012 – March 2014

The number of bariatric procedures performed by Professor Ammori is amongst the highest in the UK.

With regard to the number of major laparoscopic procedures (gastric bypass and sleeve gastrectomy), Professor Ammori is a high-volume UK surgeon.

Laparoscopic gastric bypass and laparoscopic sleeve gastrectomy are the main procedures performed for weight loss. In the Western World, the application of sleeve gastrectomy is increasing and has now overtaken the gastric bypass while gastric banding represents 10% or less of all weight loss operations.

The heaviest patients in the UK registry had undergone bariatric surgery by Professor Ammori, which reflects his expertise in this field.

The expertise of Professor Ammori and his team is confirmed by the fact that he has considerably the highest proportion of patients with greater risk for surgery who scored 4 points on the OSMRS scale compared with other UK surgeons. This is reflected in the graphs above for gastric bypass (28% versus 7%), sleeve gastrectomy (36% versus 13%) and gastric band (25% versus 6%).

OSMRS is a tool that estimates risk of surgery and risk of death from surgery and is composed of five factors (BMI, sex, age, hypertension and risk of clots in the legs and/or lungs).

Despite taking on heavier and higher risk patients, Professor Ammori is grateful that he has had no deaths during the reported period of April 2012 to March 2014.

In his experience with now over 4000 laparoscopic bariatric procedures, all of which were completed laparoscopically (including 2000+ gastric bypass, 1000+ sleeve gastrectomy and 1000+ gastric band, as well as over 200 revision operations) he has had four deaths all of whom were indeed high risk individuals. There were no deaths after gastric banding. His mortality rate of 0.1% compares favourably with that generally reported in the literature of a mortality risk of 1% with gastric bypass and gastric sleeve.

The graphs above for post-operative hospital stay show that patients operated on by Professor Ammori are likely to recover quicker and stay in hospital for a shorter duration compared with those operated on by other UK surgeons.

Professor Ammori had a slightly higher proportion of patients who stayed in hospital for one day after gastric band compared with other surgeons. The average length of stay for his patients, on the other hand, was longer (1.6 days versus 0.9 days) which reflects the fact shown above that he has a considerably larger proportion of very high-risk individuals with multiple health problems for whom he reserved the less invasive gastric band option.

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