Stay up to date with notifications from The IndependentNotifications can be managed in browser preferences.Jump to contentThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged inAllNewsSportCultureLifestyle(Reuters)Senator Lindsey Graham’s preliminary medical examiner findings indicated an aortic dissection as the cause. The tear in the inner wall of his aorta was linked to the hardening of his arteries; an official cause of death is pending further testing. Paramedics responded to reports of Graham suffering severe chest pains, a symptom experts describe as a 'knife to the heart' or 'ripping sensation'. Aortic dissection, where the aorta's three-layer lining separates, is common among men in their 60s and 70s working in stressful environments. This life-threatening condition, often misdiagnosed as a heart attack, is fatal in 50 percent of cases and requires rapid diagnosis and potential surgery. In fullWhat is an aortic tear? The fatal condition doctors compare to a knife to the heartMore bulletinsThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in