Optimal strategy of primary percutaneous coronary intervention for acute myocardial infarction due to unprotected left main coronary artery occlusion (OPTIMAL): study protocol for a randomised controlled trial

Table 2 Time frame and data collection of primary and secondary outcomes

Endpoints	Composition	Time frame	Data collection
Primary endpoints	All-cause mortality or recurrent myocardial infarction (MI)	30 d	History
Secondary endpoints	All-cause mortality	30 d/6 m/1 y	History
	Cardiac death	30 d/6 m/1 y	History
	Recurrent MI	30 d/6 m/1 y	History
	Unplanned target vessel revascularization	30 d/6 m/1 y	History

ISSN: 1745-6215