Hi Nana,
I am glad you got your aswer. Sorry I am late getting here. 
I am going to guess and say your daughter's Father need cardioversion for his rhythm.
Cardioversion is a procedure in which an electrical shock is delivered to the heart to convert an irregular or fast heart rhythm (called an arrhythmia) to a normal heart rhythm. During cardioversion, your doctor uses a cardioverter machine to send electrical energy (or a “shock”) to the heart muscle to restore the normal heart rhythm.
Cardioversion can be used to treat many types of fast or irregular heart rhythms. The most common irregular heart rhythms that require cardioversion include atrial fibrillation and atrial flutter. Life-saving cardioversion may be used to treat ventricular tachycardia (a rapid, life-threatening rhythm originating from the lower chambers of the heart).
Synchronized cardioversion is shocking a particular point in the sinus rhythm. It is used for supraventicular tachycardia.
An Automatic Implantable Cardioverter-Defibrillator (AICD) is the device
he may need down the road.
Be well,
Kitt