 [ Symptoms ] i have parathyroids on my aortic arch can this cause a heart attack [ Disease ] heart attack is not of the complications of hyper parathyroidism …generally osteoporosis and the increased risk for bone fractures is the most common concern other complications are less common but may includenephrocalcinosis calcium deposits in the kidneys that can reduce kidney function osteitis fibrosa cystica softened weak areas in the bones are known complications…increased hypercalcemia can can irregular heart beat… but if you have these symptoms i strongly recommend a surgery if medical treatment is not doing the deal…