许多内、外科医师通常给危重病人输注小剂量多巴胺，因其可增加肾血流量而导致尿钠和尿量增多。虽然上述血液动力学与利尿作用对有急性肾衰危险病人的肾脏有显著保护作用，但多巴胺的输注是否可减轻肾损伤尚未进行较大型的对照研究。一项多中心随机双盲安慰剂对照研究包括1996 In many, surgeons usually give critically ill patients a small dose of dopamine, which increases urinary sodium and urine output as it increases renal blood flow. Although the above hemodynamic and diuretic effects have a significant protective effect on the kidneys in patients at risk of acute renal failure, larger studies have not yet been conducted on whether dopamine infusion can reduce renal damage. A multicenter randomized double-blind placebo-controlled study included 1996