One year before my angioplasty done .but before...

Since you have done angioplasty, your symptoms have kind of improved and following up with your your health provider, then your heart condition is good according to your consultation
How to treat panic attacks ?
First of all, it's advised to see a psychiatrist. Panic attacks treatment include behavioral psychotherapy, which is effective in many cases. Regarding pharmacological treatment, you can use antidepressants such as paroxetine after visiting the phychiatrist as it will be a long-term treatment. During the attck, breathing into bag  to wash carbon dioxide out of the body and medications such as albrazolam can be used. It is also advised to get enough rest and sleep daily, and avoid stress and anxiety as much as possible
Causes of panic attacks?
The causes are unknown, but here are some helpful factors such as genetics and genetic factors, extreme stress, and mood sensitivity
Symptoms of panic attacks?
Feeling of fear and death
Shortness of breath
heart palpitations
Hyperhidrosis
Headache
Vertigo or dizziness
Nausea and vomiting
Tremor and the limbs
Pain in the chest and abdomen
Feeling tingling or tingling
The outlook ?
Follow the previous advicea and to see a psychiatrist