Need for submitting an ethics protocol for approval

The International Liver Surgery Outcomes Study​ is an observational study without affecting the patient management.  

Data collection is fully anonymised without any patient identifiers.

In many countries this study is considered as an audit (UK) or quality improvement program (USA), without necessitating a formal ethics approval.

However, each country, state, region or institution may have different regulations for gaining ethics permission.

In the UK,​ does not require formal ethics approval and can be registered as an audit. Please click on the icon below to download the Royal Free Hospital Audit Committee Approval Letter:

CRF PDF Download  

The local investigators should seek advise from their own Ethics Committee or Institutional Review Board.      


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