In terms of human health, heart and kidney are a pair of “difficult brothers”, kidney disease can cause heart disease, while heart disease may be manifested by the symptoms of kidney disease. Therefore, we are reminded that if you have kidney disease, do not forget to check the seemingly healthy heart; and vice versa, if the heart is sick, it is best to pay attention to the kidneys as well. The kidney affects the heart Once the kidney begins to have problems, the risk of heart problems increases, and this connection begins in the early stages of kidney disease. By the stage of uremia, cardiovascular pathology is the most common complication, and 50% of uremic patients die from cardiovascular disorders, and their cardiovascular complications are mainly hypertension, heart failure, arrhythmia, pericarditis and cardiomyopathy. Cardiac involvement of the kidney The main factors of cardiovascular disease on the kidney are hypertension, coronary artery disease, congestive heart failure and peripheral vascular disease. In particular, the incidence of benign small artery nephrosclerosis (hypertensive nephropathy) due to hypertension is proportional to the severity and duration of hypertension, and the proportion of uremic patients in Europe and the United States is second only to diabetic nephropathy, accounting for about 25%. Among hemodialysis patients in China, this disease occupies the third place, about 10%. The first clinical symptom may be increased nocturia, mainly due to ischemic lesions of the renal tubules and decreased urinary concentration. In addition, renal tubular ischemia can also lead to hyperuricemia with impaired uric acid secretion. If proteinuria is present, the glomerulus is damaged. Statistical analysis shows that the incidence of chronic ischemic nephropathy due to atherosclerosis is quite high in the middle-aged and elderly population older than 50 years old, and tends to increase with age. Therefore, when you have cardiovascular disease, don’t forget to check your kidneys carefully in order to nip the kidney disease in the bud; likewise, when the kidney test indicators are abnormal, people had better pay attention to their heart at the same time.