Joan Rivers had heart condition

Los Angeles: As investigation continues into the circumstances surrounding Joan Rivers's death, a video clip has surfaced in which the legendary comedian confesses her concerns about anaesthesia  and reveals she has a heart condition.

In 1985, Rivers appeared on 'Good Morning America', where Joan Lunden asked about her heart arrhythmia, a condition in which the heart unexpectedly beats out of sync, reported a magazine.

"All of a sudden you'll be on stage and hear 'tha-thud! It scares the hell out of me," Rivers told Lunden in the video.
Rivers then explained that the condition poses a very specific concern.

"When you go under, say for plastic surgery or something like that, that's when your heart can go out of kilter. So I'm always very careful," she said.

The 'Fashion Police' host was put into an induced coma last week after she suffered a cardiac arrest during a routine operation on her vocal cords. She died on Thursday aged 81.