Platelet Count/Splenic Diameter Ratio to Predict Oesophageal Varices in Portal Hypertension

Abstract

Background: One of the major causes of morbidity and mortality in Nepal is portal hypertension due to liver cirrhosis. In rural areas where a lot of cases of cirrhosis of liver are prevalent and endoscopic expertise and facilities are not available, predicting the presence of esophageal varices through non-invasive means may reduce a large number of unnecessary endoscopies. This study is to identify the relationship of platelet count /splenic bipolar diameter ratio with the presence of esophageal varices in portal hypertension.

Materials and methods: Eighty patients were included in this study between Jestha 2072 to Baisakh 2073 with the diagnosis of portal hypertension admitted in Bir hospital, Kathmandu which is a tertiary hospital of government of Nepal, which were mostly due to liver cirrhosis. The patients fulfilling the inclusion criteria underwent lab investigations, ultra sonogram and UGI endoscopy. The data were assessed for descriptive studies and means were compared using t-test. The cut off value of platelet count to spleen diameter ratio of 1150 was used to predict the presence or absence of oesophageal varices. Statistical analysis was done using SPSS 20 software

Results: Platelet count to splenic diameter ratio with a cut off value of 1150 has sensitivity of 89.7%, specificity of 83.3%, positive predictive value of 96.8% and negative predictive value of 58.8% (p= 0.002, CI=95%) with 89.5 % accuracy.

Conclusion: Platelet count to splenic bipolar diameter ratio can be a good predictor of presence of esophageal varices in patients with portal hypertension in the resource poor settings.