This study will directly compare the endoscopic ultrasound guided approach to obtain adequate liver biopsies and portal pressure gradient measurements to the current standard of care which uses the transjugular approach.
Current guidelines recommend that when a hepatic venous pressure gradient and a liver biopsy are needed, the liver biopsy should be done by the transjugular approach during the same session. A major limitation is that liver biopsies obtained by the transjugular approach meet quality criteria proposed by the American Association for the Study of Liver Diseases (at least 2-3cm with at least 11 complete portal tracts) in only 40% of cases. Recent studies have shown that endoscopic ultrasound-guided liver biopsy (EUS-LB) can achieve a high rate of adequate liver biopsies using the same strict criteria described above. In addition, a novel endoscopic-ultrasound adapted manometer allows the safe and accurate measurement of portal pressure gradient (PPG) which correlates well with hepatic venous pressures (HVPG) obtained by the transjugular approach. Unfortunately to this day, no randomized controlled trials has compared the EUS-LB and PPG vs TJ-LB and HVPG directly.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
58
This procedure will be performed by an experienced interventional radiologist who will be supported by a radiology technician and nurse. Transjugular hepatic venous pressure gradient measurement will be performed using standard procedure. Following this, a transjugular liver biopsy will be obtained using an 18-gauge transjugular liver biopsy needle.
A linear echoendoscope is inserted with the patient under conscious sedation. Using a through the scope 25-gauge needle connected to a digital manometer, portal and hepatic veins will be punctured under EUS guidance from a trans-gastric/hepatic approach. Following this, EUS-Liver biopsy is then performed immediately following EUS-PPG using a 19-gauge fine needle biopsy (FNB).
McGill University Health Centre
Montreal, Quebec, Canada
Compare the proportion of adequate Liver Biopsy specimens with reliable portal pressure gradient obtained by TJ or EUS
Liver Biopsy (LB) specimens are defined as a biopsy of at least 25mm in length following formalin fixation and at least 11 complete portal tracts. The Portal pressure gradient (PPG) measurement is defined as two PPG values with less than 2mmHg difference.
Time frame: 2 weeks
Technical success
Compare the proportion of HVPG and LB obtained by TJ or EUS approach
Time frame: 1 day
Liver biopsy-related outcomes
Number of adequate liver biopsies obtained, total aggregate length (defined as the sum of the lengths of all specimens following fixation), number of complete portal tracts per specimen, and total number of passes needed.
Time frame: 2 weeks
PPG-related outcomes
Number of PPG obtained, number of reliable PPG obtained
Time frame: 1 day
Adverse events
Proportion of adverse events in the TJ and EUS arms following the procedure, at day 7, and day 30.
Time frame: 30 days
Satisfaction with sedation
Compare the score obtained on the sedation satisfaction surveys as completed by the participant and the physician within the 2 arms
Time frame: 1 day
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