The deterioration of renal function is closely related to microvascular damage, calcium dobesilate is known as microcirculation protective agent, the investigators will further study its effect of non dialysis patients with chronic renal failure and explore the feasibility of calcium dobesilate in treatment of renal microvascular injury, the investigators will provide new ideas and theoretical basis for the prevention and treatment of chronic renal failure.
To investigate the feasibility of calcium dobesilate in the treatment of microvascular injury provides new ideas and theoretical basis for the prevention and treatment of chronic renal failure.