Five-Year Outcomes with Stand-alone Primary Sleeve Gastrectomy

  • Maureen Boyle
  • Nicola Carruthers
  • Kamal K. MahawarEmail author
Original Contributions



Sleeve gastrectomy is now the commonest bariatric procedure worldwide, making it important to determine 5-year weight loss and micronutrient deficiency outcomes following primary, stand-alone sleeve gastrectomy (SG) with adequate follow-up. The purpose of this study was to evaluate weight loss, co-morbidity resolution, and haematological outcomes at 5 years with primary, stand-alone SG in our unit.

Materials and Methods

Baseline data were obtained from our prospectively maintained database and patients were invited for a 5-year follow-up. For those who could not attend, further information was obtained by telephoning them and contacting their general practitioners.


A total of 92 patients (66 females) underwent primary SG at our centre in 2011. The median age was 46.0 years. The median weight and the body mass index (BMI) were 133.0 kg and 47.0 kg/m2 respectively. After 5 years, 7 (7.6%) patients had died due to unrelated causes and 11 (12.0%) had been converted to Roux-en-Y gastric bypass (RYGB). Of the remaining 74, we were able to obtain follow-up data on 64 (86.5%). Despite all efforts, 10 (13.5%) patients were lost to follow-up. The median total weight loss was 21.9% and median excess weight loss (EWL) was 48.0%. Patients developed a range of micronutrient deficiencies over the follow-up period.


This study shows acceptable results with SG at 5 years in our unit, but a large number of patients experienced GORD and some patients needed additional micronutrient supplementation over and above our unit recommendation of a single multivitamin/mineral A–Z tablet daily.


Bariatric surgery Obesity surgery Sleeve gastrectomy Weight loss Micronutrient deficiency 



sleeve gastrectomy


body mass index


Roux-en-Y gastric bypass


excess weight loss


general practitioner


total weight loss


gastro-oesophageal reflux disease



The authors would like to acknowledge Fiona MacLeod and David Hopson for their help with data collection and analysis.

Author Contribution

MB and NC collected the data, analysed it, and helped with manuscript writing. KM conceived the study and wrote most of the manuscript. All authors participated in the departmental discussions on the topic. All authors have seen the final manuscript and approve of it.

Compliance with Ethical Standards

Conflict of Interest

Ms. Boyle and Mrs. Carruthers have no conflicts of interests to disclose. Mr. Mahawar reports he has been paid honoraria by Medtronic and Olympus for educational activities.

Statement of Human and Animal Rights

For this type of study, formal consent is not required.

Statement of Informed Consent

Does not apply.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Bariatric UnitSunderland Royal HospitalSunderlandUK
  2. 2.University of SunderlandSunderlandUK

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