Which underlying CV mechanism is most often responsible for type 2 MI?

Tachycardia and hypertension are responsible for more than two-thirds of type 2 MI cases in patients presenting to ED with acute chest discomfort, a study shows.
Improved understanding of the cardiovascular mechanics in patients with type 2 MI should lead to better management strategies, the international researchers say.
Using data from 6300 patients in the ongoing APACE (Advantageous Predictors of Acute Coronary Syndromes Evaluation) study, the University of Basel-led team in Switzerland compared the characteristics and outcomes associated with the two main MI types.
The cohort (mean age 61; 67% male) presented with chest discomfort to EDs in five European countries, with 16% and 4% diagnosed with type 1 and type 2 MI, respectively.