肝硬化是我国最常见和导致死亡的主要疾病之一。造成肝硬化患者死亡的主要原因往往不是肝硬化本身,而是门脉高压导致的一系列并发症,包括静脉曲张破裂出血、肝性脑病等。因此,准确测定肝硬化患者的门静脉压力是评估患者病情并及时采取干预措施的关键。肝静脉压力梯度(hepatic venous pressure gradient,HVPG)早已被证实是反映门脉压力的 Cirrhosis is one of the most common and leading causes of death in our country. The main cause of death in patients with cirrhosis is often not cirrhosis itself, but a series of complications caused by portal hypertension, including variceal bleeding, hepatic encephalopathy and so on. Therefore, accurate measurement of portal pressure in patients with cirrhosis is the key to assessing the patient’s condition and taking timely interventions. Hepatic venous pressure gradient (HVPG) has long been shown to reflect portal pressure