And he waited for his heart to stop, just like Margaret's had.

I took a deep breath and waited for my heart to stop thudding.

Maggie had to wait for her slamming heart to quiet.

He sagged into a chair, waiting for his heart to pump again.

She looked around a bit and waited for her heart to slow.

I was just waiting for my heart to cave.

I sat back against the seat, eyes closed, waiting for my heart to slow down.

"What was the cause of the delay" I asked, waiting for my heart to stop pounding.

She took a deep breath and waited for her heart to stop pounding.

I leaned against the couch, waiting for my heart to stop pounding so hard.