New Delhi, March 6: The Tamil Nadu government today released a "treatment summary" describing how doctors had battled in vain to save Jayalalithaa, who died after 75 days in a Chennai hospital last year.

The 12-page document says Jayalalithaa, who was admitted on September 22 and died on December 5, had been diagnosed with conditions such as sepsis and secondary lung infections, heart failure, uncontrolled diabetes, hypertension and asthmatic bronchitis.

Two senior doctors who had been associated with her care declined to comment on the contents of the document or confirm its veracity. But one of them said the government may have released it on account of a petition being heard in Madras High Court.

Moved by an AIDMK worker, the plea seeks a probe into the "questionable" circumstances leading to Jayalalithaa's death, PTI said.

The treatment summary says it was "written in consensus with all treating physicians" mentioned in the document. They include 17 doctors from Apollo Hospitals, Chennai, where Jayalalithaa was admitted, six doctors from AIIMS, New Delhi, who had observed her treatment, and 12 doctors from institutions in Hyderabad, Mumbai, Vellore, Britain and America who had been consulted.

The document says that when Jayalalithaa was brought into the emergency room, she was "drowsy and not consistently responding to verbal commands", and was in respiratory distress.

The document says Jayalalithaa appeared to respond to the treatment and by November 14, was able to breathe spontaneously "for almost 16 hours a day".

In view of her "overall improvement", the doctors moved her out of the intensive care unit on November 19.

The report says that on December 3, a team of visiting AIIMS doctors encouraged her to increase her oral intake. Later the same day, her cough and tracheal secretions increased and doctors started a fresh antibiotic course, suspecting "new onset pneumonia".

She was placed on ventilator and given bronchodilators after her breathlessness worsened on December 4. She suffered a cardiac arrest, prompting the doctors to resort to extracorporeal membrane oxygenation (ECMO) to provide both respiratory and cardiac support.

The report said the AIIMS doctors again visited on December 5 and a neurological examination revealed brainstem dysfunction.

After consultations, the treating doctors told Tamil Nadu government officials that ECMO and other organ supportive measures were "futile".

"All of them understood the situation and consented for withdrawal of ECMO," the report concludes. "After ECMO withdrawal, patient was declared dead at 11.30pm on 5/12/2016."