Prince‘s sister Tyka Nelson suffered congestive coronary heart failure when she died … however authorities say her coronary heart was additionally weakened by substance abuse.

The Minnesota Dept. of Well being issued Tyka’s dying certificates, which lists cardiac arrest as the first explanation for dying, and congestive coronary heart failure because the secondary trigger.

Based on her dying certificates, the 64-year-old singer and songwriter suffered cardiac arrest about 45 minutes earlier than she was pronounced lifeless. She’d additionally battled non-ischemic cardiomyopathy — a normal time period for irregular coronary heart operate — for greater than 4 months.

Tyka died on November 4 within the Minneapolis/St. Paul space, and as TMZ first reported … she’d been coping with coronary heart issues for a number of years. We found paramedics had been known as to her residence at the least 6 instances since September.

Her dying certificates additionally lists “substance use dysfunction” as a contributing situation in her dying, however the doc doesn’t record any particular substance.