The hospital's treatment summary, released by the state government today, listed the three factors as the cause of her death.
The report said her past medical history was significant for multiple medical problems including obesity, hypertension, poorly controlled hypothyroidism, irritable bowel syndrome with chronic diarrhoea and chronic seasonal bronchitis.
"She was also on a tapering dose of oral steroids for atopic dermatitis. There was a history of intermittent fever for 5-7 days with increased frequency of bowel movement."
She had infective "endocarditis of calcified mitral valve with valve perforation, Mitral Regurgitation and first degree AV block," it said.
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Also, "Heart failure with preserved systolic function, uncontrolled Type-2 Diabetes mellitus, hypertension, Hypothyroidism, Asthmatic bronchitis and probable sleep apnoea, a history of irritable bowel syndrome and atopic dermatitis" were listed under the diagnosis column of the report.
Giving a list of 18 doctors which formed the critical care consultants group of Apollo, the report said externally, expert opinion was taken from 13 doctors, which included an AIIMS team.
Beale at one point of time had said that considering her overall condition she carried a mortality (risk) of 40 per cent.
"During treatment, a pacemaker was set at a standby rate of 70/ minute. However, she was noted to have intrinsic sinus rhythm and did not trigger pacing," the hospital said in the report.
On her last day, Apollo detailed the visit of an AIIMS team evaluating Jayalalithaa.
A neurological exam revealed brain stem dysfunction. "Patient never recovered a sustained intrinsic heart rhythm....And was dependent on VA ECMO," it said.
"A consensus emerged that continuing VA ECMO and other supportive measures were futile considering absence of intrinsic cardiac and mechanical activity," it added.
This was conveyed to top state officials, then senior minister O Panneerselvam, Lok Sabha Deputy Speaker M Thambidurai, her aide V K Sasikala and they consented to removal of ECMO.