The relationship between portal hypertension and portal hypertensive gastropathy

Background and aim Portal hypertensive gastropathy (PHG) most commonly occurs in the setting of increased portal pressure in patients with cirrhosis. Here, we aimed to understand the correlation between hepatic venous pressure gradient (HVPG) and the presence and severity of PHG in patients with cirrhosis. Methods We examined patients with cirrhosis who underwent HVPG measurement at the Medical University of South Carolina between 2014 and 2020. Extensive demographic, clinical, laboratory, procedural (including precise grading of PHG severity using standard definitions), and outcome data were abstracted at the time of HVPG measurement. Results Three hundred and ten patients with HVPG measurements and cirrhosis were identified. Seventy-three patients having endoscopy within 6 months of HVPG measurement were included (mean age 54 +/- 11, 44% female). The most common causes of cirrhosis were alcohol (41%) and non-alcoholic steatohepatitis (32%). The average HVPG was 15 mmHg (+/- 6) and 62 patients had clinically significant portal hypertension (CSPH) (HVPG >= 10 mmHg). Of the 73 patients with HVPG measured, 45 (62%) had PHG, including 40 (89%) of whom had CSPH. Out of the 45 patients with PHG, 41 and four had mild or severe PHG, respectively. MELD scores were similar in patients with and without PHG [15 +/- 9 (SD) and 17 +/- 9, respectively; p = .37]. HVPG was higher in patients with PHG (17 +/- 7 mmHg) than those without PHG (13 +/- 4 mmHg) (p = .01) but did not differ between mild and severe PHG. Conclusion A weak correlation exists between HVPG level and the presence of PHG.