Helmke, Steve M.

ABSTRACT Background The accuracy of current criteria for ruling out large oesophageal varices (LEV) and other endoscopic lesions of portal hypertension (PH) may be compromised by obesity and MASLD/MASH. Aims In the US multicentre SHUNT‐V study, we evaluated the disease severity index (DSI) for detecting LEV and other lesions of PH at endoscopy. Methods Subjects were adults with compensated cirrhosis scheduled for endoscopy to screen for varices. DSI was calculated from clearances of labelled cholates after oral and intravenous administration. DSI ≤ 18.3 was evaluated as a cut‐off for ruling out LEV with acceptance criteria of negative likelihood ratio < 0.52 and sensitivity > 85%. Results SHUNT‐V enrolled 306 subjects; 275 had both DSI and endoscopy, and 238 had Child–Pugh A cirrhosis (52.1% MASLD/MASH, 25.2% chronic hepatitis C and 15.6% alcoholic liver disease; 87% were overweight, 64% were obese and 54% had diabetes). AUROCs for DSI ranged from 0.81 to 0.82 for LEV and 0.79 to 0.80 for all significant PH lesions. DSI 18.3 had sensitivity 96.3%–100% for LEV and 97.3%–100% for all significant PH lesions. If DSI ≤ 18.3 were used as the sole determinant to defer EGD, 27%–35% of EGDs could have been avoided with 0%–3.7% of LEV and 0%–2.7% of all significant PH lesions missed. Conclusions HepQuant DSI predicts the likelihood of LEV and significant PH lesions across a spectrum of patient characteristics and disease aetiologies. DSI, based on liver function and portal‐systemic shunting, can aid in the decision to defer endoscopy for varices in patients with Child–Pugh A cirrhosis. Trial Registration: The SHUNT‐V study was registered at ClinicalTrials.gov (NCT03583996)

LINKED CONTENTThis article is linked to Hassanein et al papers. To view these articles, visit https://doi.org/10.1111/apt.18054 and https://doi.org/10.1111/apt.18113

Summary Background The quantitative HepQuant SHUNT test of liver function and physiology generates a disease severity index (DSI) that correlates with risk for clinical complications, such as large oesophageal varices (LEVs). A derivative test, HepQuant DuO, generates an equivalent DSI and simplifies testing by requiring only oral administration of the test solution and two blood samples at 20 and 60 min. Aims Since the DSIs measured from DuO and SHUNT are equivalent, we compared the diagnostic performance for large oesophageal varices (LEVs) between the DSIs measured from DuO and SHUNT tests. Methods This study combined the data from two prospectively conducted US studies: HALT‐C and SHUNT‐V. A total of 455 subjects underwent both the SHUNT test and esophagogastroduodenoscopy (EGD). Results DSI scores correlated with the probability of LEVs ( p < 0.001) and demonstrated a stepwise increase from healthy lean controls without liver disease to subjects with chronic liver disease and no, small or large varices. Furthermore, a cutoff of DSI ≤ 18.3 from DuO had a sensitivity of 0.98 (missing only one case) and, if applied to the endoscopy (EGD) decision, would have prevented 188 EGDs (41.3%). The AUROC for DSI from DuO did not differ from that of the reference SHUNT test method (0.82 versus 0.81, p = 0.3500). Conclusions DSI from HepQuant DuO links liver function and physiology to the risk of LEVs across a wide spectrum of patient characteristics, disease aetiologies and liver disease severity. DuO is minimally invasive, easy to administer, quantitative and may aid the decision to avoid or perform EGD for LEVs.