Mr Brough said a patient would have to be fully informed of the risk they were taking in having an operation - particularly since the condition being treated was not in itself life-threatening.
Venezuela's most senior political leaders are in Cuba to visit President Hugo Chavez, who is still in a serious condition after his latest cancer operation in Havana on 11 December.
BBC: Venezuelan leaders have meeting with Cuba's Raul Castro
In a news conference on Monday, the Birmingham hospital's medical director Dr Dave Rosser said everything had gone "very well" in Saturday's operation and said the teenager's condition was continuing to improve.
But as he turned 15 his condition deteriorated and a heart transplant operation was carried out last month.
He added that her condition worsened after she underwent a further hip operation following a fall at the hospital.
But he gave very little further concrete information about the condition of the president, who underwent his operation on 11 December.
The star, whose hits include I'm Outta Love, also suffers from the bowel condition Crohn's disease and had an operation for this at the age of 13 for the illness.
He is in a stable condition at Derriford Hospital, Plymouth, after an operation in Tromso, Norway.
An intelligence official in the Middle East, who spoke on condition of anonymity in order to disclose information about a secret military operation to the media, confirmed that Israel launched an airstrike in the Syrian capital early Sunday but did not give more precise details about the location.
Just one of them could be a condition expected to come from the Treasury in any negotiations on co-operation over use of sterling on both sides of the border.
Israel in January halted a three-week military operation in Gaza under a cease-fire that did not include Shalit's release as a condition.
CNN: Olmert blasts 'damaging' reports on kidnapped Israeli soldier
Wright's friend Rick Hession has a heart condition that could cause a stroke, but he has a three-month wait or more for an operation to help correct it.
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