According to a recent autopsy, Presley's demise resulted from complications arising from bariatric surgery she underwent several years ago, specifically due to a small bowel obstruction. This unexpected outcome has left many reeling with disbelief.
From Yahoo News:
The medical examiner confirmed that she was found unresponsive at her home, then was transported to a hospital, where she died. The manner is listed as "natural."
At the time, Yahoo Entertainment confirmed TMZ's report that the musician was on life support in intensive care after having suffered a suspected cardiac arrest.
Within a week, Lisa Marie's cause of death was deferred, medical examiner spokeswoman Sarah Ardalani said: "Deferred means that after an autopsy, a cause of death has not been determined and the medical examiner is requesting more investigation into the death, including additional studies. Once the tests/studies come back, the doctor evaluates the case again and makes the cause of death determination."
Ardalani declined to say what specific tests were being run, because the investigation was ongoing.
However, law enforcement officials noted that they were not investigating.
On Thursday, TMZ said the toxicology report, which was released along with the cause of death, found that she had "therapeutic levels of Oxycodone," as well as the opioid Buprenorphine, used to treat chronic pain and opioid dependence, in her system. There was also "traces" of the drug Quetiapine, used to treat everything from depression and anxiety to schizophrenia. The report notes that Lisa Marie, who has struggled with drug addiction and alcoholism, had been prescribed opioids for a cosmetic procedure late last year.
IIt appears that Lisa Marie endured significant strain on her body, including struggles with drug and alcohol addiction.
Unfortunately, the cumulative effect of these stressors took a toll on her well-being.