Bhattarai Subash, Dewan Khus Raj, Shrestha Gaurav, Patowary Bhanumati Saikia
Department of Medical Gastroenterology, College of Medical Sciences, Chitwan, Nepal.
JNMA J Nepal Med Assoc. 2017 Jul-Sep;56(207):298-303.
The worldwide accepted tool for screening and monitoring gastro-oesophageal varices in patients with liver cirrhosis is upper gastrointestinal endoscopy. Endoscopy needs clinical expertise and has got its own procedure related complications. Repeated endoscopies may be expensive and patients tend to develop poor compliance. This study was undertaken to establish the role of noninvasive parameters in predicting gastro-esophageal varices.
Two hundred patients with clinical features, laboratory and sonological findings suggestive of cirrhosis of liver and endoscopic evidence of portal hypertension were included in the study. Blood parameters like serum albumin, international normalized ratio (INR), platelets count and ultrasonography assessments of portal vein diameter and spleen size were compared with presence of gastro-oesophageal varices.
At cutoff point of 2.55g/dl, serum albumin had high specificity of 99% whereas platelets count <1,44,000/mm3 had 87.9% sensitivity for presence of oesophageal varices. Sensitivities of 92.72% and 94.5% while specificities of 90% and 75% were detected for presence of oesophageal varices when the cutoff values for portal vein diameter and spleen size were 12.25 mm and 13.9 cm respectively.
Measurements of serum albumin, platelets count, portal vein diameter and spleen size by ultrasonography can be recommended as a non-invasive predictor for gastro-oesophageal varices in cirrhosis of liver. All these non-invasive parameters could be useful to patients with liver cirrhosis with portal hypertension in predicting presence of varices as well as in long-term clinical monitoring and management.
上消化道内镜检查是全球公认的用于筛查和监测肝硬化患者胃食管静脉曲张的工具。内镜检查需要临床专业知识,且有其自身与操作相关的并发症。反复进行内镜检查可能费用高昂,且患者往往依从性较差。本研究旨在确定非侵入性参数在预测胃食管静脉曲张中的作用。
本研究纳入了200例具有肝硬化临床特征、实验室及超声检查结果提示肝硬化且有门静脉高压内镜证据的患者。将血清白蛋白、国际标准化比值(INR)、血小板计数等血液参数以及门静脉直径和脾脏大小的超声检查评估结果与胃食管静脉曲张的存在情况进行比较。
血清白蛋白在临界值为2.55g/dl时,特异性高达99%,而血小板计数<144,000/mm3对食管静脉曲张存在的敏感性为87.9%。当门静脉直径和脾脏大小的临界值分别为12.25mm和13.9cm时,食管静脉曲张存在的敏感性分别为92.72%和94.5%,特异性分别为90%和75%。
血清白蛋白、血小板计数、门静脉直径测量以及脾脏大小的超声检查可作为肝硬化患者胃食管静脉曲张的非侵入性预测指标。所有这些非侵入性参数对于患有门静脉高压的肝硬化患者预测静脉曲张的存在以及长期临床监测和管理都可能有用。