article_snippet: Scroll down for video .
article_snippet: However, these all involve incisions in the abdomen, which carries risk of infection (affecting around one in 20), blood clots in the legs or lungs and internal bleeding, each of which affects around one in 100.
article_snippet: Patients also need to stay in hospital for a least a night, if not longer.
article_snippet: The surgeon works through a tube or endoscope, which goes down the throat into the stomach.
highlights_snippet: The whole procedure is done via a tube that is passed down the throat .
  