Ring-shaped scars ‘flag high risk’ for malignant arrhythmias
![senior man going into mRI machine](https://www.ausdoc.com.au/wp-content/uploads/2022/08/senior_man_having_mri_scan_istock-1125616490-1.jpg)
Patients with idiopathic non-sustained ventricular arrhythmia who show distinctive ring-shaped left ventricular scarring on cardiac MRI are at particularly high risk of malignant arrhythmic events, a study shows.
US-led researchers say while scarring is known to be associated with such events, those with a ring-like pattern have a threefold higher risk compared with other scarring and an almost 70-fold increased risk compared with no scarring.