Spontaneous coronary artery dissection

A female patient in her mid 30s recently had a myocardial infarction as a result of a spontaneous spiral  dissection of the right coronary artery. Angiographic findings showed a 100% stenosis with no distal perfusion to  a N/A De-novo lesion in the right PDA. It was deciced to treat her medically.
There appears to be no obvious cause for the dissection. Could you tell me what the relative risk is of it occurring in the left coronary system and if there is any data available to determine morbidity?

Many thanks.

[Cleveland Clinic]

Has she been evaluated for any connective tissue disorders, such as Marfan's syndrome or Ehler Dahnlos or vascular issues such as Kawasaki's disease or FMD which rarely only affects the coronaries. Other issues such as trauma or catheter induced dissection are also possible.
If the patient has connective tissue phenotype, then it is reasonable to treat hypertension and atherosclerosis aggressively with beta blockers and statins, in order to prevent other such events.

[Flycaster305]

Had she had a previous Angiogram or stents installed?

I'm male, age 66, and experienced Spontaneous dissection of the Right Coronary artery.  The dissection occurred between two previously installed stents.  The operative report gave three possible causes; a split caused by the harmonics, or vibrations of the heart beat causing the artery to split, trauma caused by the catheter, or the Ankylosing Spondelitis disease I've had for many years, which is a risk factor for this event.