(Los Angeles) Lisa Marie Presley, Elvis’ only daughter, died in January of complications from weight-loss surgery, according to an autopsy report released Thursday.

The singer, who passed away suddenly at 54, died “of bowel obstruction caused by scar tissue that developed after bariatric surgery several years ago,” health officials wrote. of Los Angeles in a statement.

This type of surgery aims to lose weight by removing part of the stomach or by placing a gastric band in obese people or for whom diets and physical exercise do not give results.

“The cause of death is natural,” the experts added.

A “therapeutic” and non-hazardous level of an opiate, oxycodone, was also found in his blood along with traces of another painkiller and a substance to treat depression, but “did not help upon his death,” according to US media.

The star, who had a history of addiction to opiates and painkillers, was discovered unconscious on January 12 at her home by her ex-husband, Danny Keough.

Mr. Keough, who also lived on the property in Calabasas, an affluent suburb of Los Angeles, had performed cardiac massage until paramedics arrived, the American specialized site TMZ reported.

Very close to her father, who had named his private jet “Le Lisa Marie” in her honor, the singer was only 9 years old when the “King” died.

Elvis’ toxicology reports then revealed elevated drug levels in the rock ‘n’ roll legend’s body.

Although Lisa Marie Presley released three albums during her career, she never achieved the immense success of her father, one of the most famous artists of all time.

During her lifetime, she retained control of Graceland, her father’s mansion in Memphis, Tennessee, which became a place of pilgrimage for “King” fans.