Well here is one version of it:
Incident: British Airways B744 over Atlantic on Jan 22nd 2010, medical emergency
By Simon Hradecky, created Saturday, Jan 23rd 2010 18:23Z, last updated Saturday, Jan 23rd 2010 18:23Z
A British Airways Boeing 747-400, registration G-CIVR performing flight BA-247 (dep Jan 21st) from London Heathrow,EN (UK) to Sao Paulo Guarulhos,SP (Brazil), was enroute over the Atlantic when a female passenger (44) suffered a cardiac arrest. The passenger accompanied by her husband received first aid on board until the aircraft landed safely in Recife. Medical services resuscitated the woman after arrival and delivered her to a local hospital in a mobile high intense care unit.
The hospital was able to stabilize the passenger, who however still remains in critical condition. Doctors are still trying to determine, what caused the cardiac arrest.
The airplane was able to continue to Sao Paulo after three hours on the ground and reached Sao Paulo with a delay of 3 hours.