Adithan Subathra, Venkatesan Bhuvaneswari, Sundarajan Elangovan, Kate Vikram, Kalayarasan Raja
Department of Radiodiagnosis, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry - 605 006, India.
Indian J Radiol Imaging. 2010 Nov;20(4):289-93. doi: 10.4103/0971-3026.73541.
The purpose of this study was to assess the value of Doppler evaluation of left gastric vein hemodynamics when monitoring portal hypertension patients, by correlating Doppler ultrasonography (USG) parameters with the severity of esophageal varices and occurrence of variceal bleeding.
This study was carried out on 100 patients using Doppler USG and endoscopy. Forty-seven of these were patients with cirrhosis with portal hypertension, who had not had a recent variceal bleed (group 1) and 26 were patients with cirrhosis with portal hypertension, with a recent history of bleeding (group 2). The control group comprised of 27 subjects who did not have liver disease or varices on endoscopy (group 3). The hemodynamic parameters, namely the diameter of the left gastric vein and the direction and flow velocity in the vessel, were compared in these groups, with the grade of esophageal varices.
Hepatofugal flow velocity in the left gastric vein was higher in patients with large-sized varices compared to those patients with small-sized varices (P < 0.001). The left gastric vein hepatofugal flow velocity was higher in patients with a recent variceal bleed than in those patients without a history of a recent variceal bleed (P < 0.0149). Large-sized varices were more commonly found in patients with a history of a recent variceal bleed (P < 0.0124).
Left gastric vein hemodynamics were found to correlate with the severity of the varices and the occurrence of recent variceal bleed in patients with cirrhosis with portal hypertension. Evaluation of the left gastric vein portal dynamics could be helpful in monitoring the progress of the disease in these patients.
本研究旨在通过将多普勒超声(USG)参数与食管静脉曲张的严重程度及曲张静脉出血的发生情况相关联,评估监测门静脉高压患者时左胃静脉血流动力学的多普勒评估价值。
本研究对100例患者进行了多普勒USG和内镜检查。其中47例为肝硬化伴门静脉高压且近期无曲张静脉出血的患者(第1组),26例为肝硬化伴门静脉高压且近期有出血史的患者(第2组)。对照组由27例内镜检查无肝病或静脉曲张的受试者组成(第3组)。比较这些组中左胃静脉的血流动力学参数,即左胃静脉直径、血管内血流方向和流速,以及食管静脉曲张的分级。
与小尺寸静脉曲张患者相比,大尺寸静脉曲张患者左胃静脉的离肝血流速度更高(P < 0.001)。近期有曲张静脉出血的患者左胃静脉离肝血流速度高于无近期曲张静脉出血史的患者(P < 0.0149)。近期有曲张静脉出血史的患者更常出现大尺寸静脉曲张(P < 0.0124)。
发现左胃静脉血流动力学与肝硬化伴门静脉高压患者的静脉曲张严重程度及近期曲张静脉出血的发生相关。评估左胃静脉门静脉动力学可能有助于监测这些患者的疾病进展。