Student or Learner
Can "her hospitalization" be expressed as "her being in hospital"?
She often suffered an acute heart pain, which has led to her hospitalization multiple times.
I don't know if it's only on my screen but the strikethrough facility is getting harder and harder to see. In case the OP did not notice billmcd's strikethrough of the word "an", note that we would say "She often suffered acute heart pain ..."
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.