• World J. Gastroenterol. · Jan 2017

    Correlation of transient elastography with hepatic venous pressure gradient in patients with cirrhotic portal hypertension: A study of 326 patients from India.

    • Ashish Kumar, Noor Muhammad Khan, Shrihari Anil Anikhindi, Praveen Sharma, Naresh Bansal, Vikas Singla, and Anil Arora.
    • Ashish Kumar, Noor Muhammad Khan, Shrihari Anil Anikhindi, Praveen Sharma, Naresh Bansal, Vikas Singla, Anil Arora, Institute of Liver, Gastroenterology, and Pancreatico-Biliary Sciences, Ganga Ram Institute for Postgraduate Medical Education and Research, Sir Ganga Ram Hospital, New Delhi 110060, India.
    • World J. Gastroenterol. 2017 Jan 28; 23 (4): 687-696.

    AimTo study the diagnostic accuracy of transient elastography (TE) for detecting clinically significant portal hypertension (CSPH) in Indian patients with cirrhotic portal hypertension.MethodsThis retrospective study was conducted at the Institute of Liver, Gastroenterology, and Pancreatico-Biliary Sciences, Sir Ganga Ram Hospital, New Delhi, on consecutive patients with cirrhosis greater than 15 years of age who underwent hepatic venous pressure gradient (HVPG) and TE from July 2011 to May 2016. Correlation between HVPG and TE was analyzed using the Spearman's correlation test. Receiver operating characteristic (ROC) curves were prepared for determining the utility of TE in predicting various stages of portal hypertension. The best cut-off value of TE for the diagnosis of CSPH was obtained using the Youden index.ResultsThe study included 326 patients [median age 52 (range 16-90) years; 81% males]. The most common etiology of cirrhosis was cryptogenic (45%) followed by alcohol (34%). The median HVPG was 16.0 (range 1.5 to 30.5) mmHg. Eighty-five percent of patients had CSPH. A significant positive correlation was noted between TE and HVPG (rho 0.361, P < 0.001). The area under ROC curve for TE in predicting CSPH was 0.740 (95%CI: 0.662-0.818) (P < 0.01). A cut-off value of TE of 21.6 kPa best predicted CSPH with a positive predictive value (PPV) of 93%.ConclusionTE has a fair positive correlation with HVPG; thus, TE can be used as a non-invasive modality to assess the degree of portal hypertension. A cut-off TE value of 21.6 kPa identifies CSPH with a PPV of 93%.

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