- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07703540
Inferior Vena Cava Pressure as Alternative to Hepatic Venous Pressure for EUS-guided Portal Pressure Gradient Measurement (EUS-VEIN)
8. juli 2026 opdateret af: Prof. Dr. Michael Praktiknjo, University Hospital Muenster
This study investigates a new, simplified approach to measuring blood pressure within the liver (portal hypertension) using Endoscopic Ultrasound-Guided Portal Pressure Gradient Measurement (EUS-PPG).
While this minimally invasive method traditionally relies on a hepatic vein as the baseline reference point, advanced liver scarring can make these veins twisted and highly difficult to access.
To address this challenge, our study evaluates the Inferior Vena Cava (IVC)-the body's largest main vein-as an alternative reference site.
Currently, it remains scientifically unproven whether the inferior vena cava or the hepatic vein provides the more reliable and accurate pressure reading for calculation, as anatomical distortion from cirrhosis can affect both areas differently.
By measuring and comparing both venous compartments during a single, clinically scheduled endoscopy session, this study aims to determine if the pressures are truly interchangeable.
Ultimately, this research will clarify which vessel serves as the optimal reference point, helping to establish a safer, more reliable diagnostic standard for patients with complex vascular anatomy.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Undersøgelsestype
Observationel
Tilmelding (Faktiske)
40
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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North Rhine-Westphalia
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Münster, North Rhine-Westphalia, Tyskland, 48149
- University Hospital Muenster
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ingen
Prøveudtagningsmetode
Ikke-sandsynlighedsprøve
Studiebefolkning
The study population consists of consecutive adult patients ($\ge18$ years) undergoing a clinically indicated EUS-PPG measurement (e.g., for liver disease evaluation, fibrosis staging, or portal hypertension assessment).
Beskrivelse
Inclusion Criteria:
- Consecutive adult patients (≥18 years) undergoing clinically indicated EUS-guided portal pressure gradient measurement
Exclusion Criteria:
- severe coagulopathy (INR >2.0), thrombocytopenia (<50,000/µL)
- large-volume ascites
- gastric varices precluding safe vascular puncture
- known hepatic vein thrombosis or Budd-Chiari syndrome
- altered IVC anatomy such as patients after liver transplantation with piggy-back anastomosis
- contraindication to upper gastrointestinal endoscopy or sedation
- pregnancy
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
Intervention / Behandling |
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HVP-PPG and IVCP-PPG
Patients undergoing both measurements (HVP-PPG and IVCP-PPG)
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During a clinically indicated endoscopic ultrasound (EUS), patients undergo portal pressure gradient (PPG) measurement using a linear-array echoendoscope and a dedicated needle system (22G or 25G).
The intervention utilizes a transgastric approach to sequentially measure pressures in three vessels: a left intrahepatic portal vein branch, a hepatic vein, and the inferior vena cava (IVC).
The IVC is safely punctured through a window covered by liver tissue.
Pressures are measured in triplicate per vessel.
This protocol uniquely calculates two distinct gradients within the same procedural session: HVP-PPG: Calculated as the mean portal vein pressure minus the mean hepatic vein pressure (HVP).
IVCP-PPG: Calculated as the mean portal vein pressure minus the mean inferior vena cava pressure (IVCP).
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Agreement between mean hepatic vein pressure and mean inferior vena cava pressure measured during the same EUS-PPG session
Tidsramme: Intraprocedural
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Based on prior reproducibility data for EUS-guided portal pressure measurements, a predefined absolute difference of >1 mmHg between HVP and IVCP was considered clinically relevant.
Differences ≤1 mmHg after rounding to the nearest whole mmHg were considered hemodynamically equivalent, reflecting clinical pressure reporting practice.
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Intraprocedural
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Sekundære resultatmål
Resultatmål |
Tidsramme |
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Correlation between HVP and IVCP, Bland-Altman analysis of agreement and systematic bias
Tidsramme: Intraprocedural measurement
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Intraprocedural measurement
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Agreement between PPG-HV and PPG-IVC
Tidsramme: Intraprocedural measurement
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Intraprocedural measurement
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Reclassification across clinically significant portal hypertension thresholds (≥10 mmHg)
Tidsramme: Intraprocedural measurement
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Intraprocedural measurement
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Intraprocedural variability of triplicate measurements
Tidsramme: Intraprocedural measurement
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Intraprocedural measurement
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Procedural adverse events
Tidsramme: Up to 72 hours
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Up to 72 hours
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Sponsor
Publikationer og nyttige links
Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.
Generelle publikationer
- Ripoll C, Groszmann R, Garcia-Tsao G, Grace N, Burroughs A, Planas R, Escorsell A, Garcia-Pagan JC, Makuch R, Patch D, Matloff DS, Bosch J; Portal Hypertension Collaborative Group. Hepatic venous pressure gradient predicts clinical decompensation in patients with compensated cirrhosis. Gastroenterology. 2007 Aug;133(2):481-8. doi: 10.1053/j.gastro.2007.05.024. Epub 2007 May 21.
- Laleman W, Vanderschueren E, Mehdi ZS, Wiest R, Cardenas A, Trebicka J. Endoscopic procedures in hepatology: Current trends and new developments. J Hepatol. 2024 Jan;80(1):124-139. doi: 10.1016/j.jhep.2023.08.032. Epub 2023 Sep 18.
- de Franchis R, Bosch J, Garcia-Tsao G, Reiberger T, Ripoll C; Baveno VII Faculty. Baveno VII - Renewing consensus in portal hypertension. J Hepatol. 2022 Apr;76(4):959-974. doi: 10.1016/j.jhep.2021.12.022. Epub 2021 Dec 30.
- Santopaolo F, Giuli L, Tripodi G, Pallozzi M, Ponziani FR, Annicchiarico BE, Rizzatti G, Contegiacomo A, Posa A, Iezzi R, Talerico R, Gasbarrini A, Larghi A. Prognostic Role of Endoscopic Ultrasound Guided Direct Portal Pressure Gradient Measurement in Porto-Sinusoidal Vascular Disorder. Liver Int. 2025 May;45(5):e70096. doi: 10.1111/liv.70096.
- Benmassaoud A, Bessissow A, Samoukovic G, Wong P, Zhao X, Deschenes M, Sebastiani G, Cabrera T, Valenti D, Boucher LM, Pelage JP, Muchantef K, Cardenas A, Givis MA, White S, Bousquet-Dion G, Waked C, Jacques J, Rahme E, Geraci O, Martel M, Barkun A, Maedler-Kron C, Chen YI. EUS-Guided Liver Biopsy and Portal Pressure Measurement Compared With a Transjugular Approach: A Randomized Controlled Trial. Clin Gastroenterol Hepatol. 2026 Jun;24(6):1601-1610. doi: 10.1016/j.cgh.2025.09.025. Epub 2025 Oct 3.
- Praktiknjo M, Farouk N, Wang Z, Stadtmann J, van de Loo D, Kimmann M, Gunia C, Meier JA, Uschner FE, Peiffer KH, Laleman W, Trebicka J, Braden B. Same Session Validation of a Custom-Built 22G With the Commercial 25G System for EUS-Guided Portal Pressure Gradient Measurement. United European Gastroenterol J. 2026 Mar;14(2):e70194. doi: 10.1002/ueg2.70194.
- Zhang W, Peng C, Zhang S, Huang S, Shen S, Xu G, Zhang F, Xiao J, Zhang M, Zhuge Y, Wang L, Zou X, Lv Y. EUS-guided portal pressure gradient measurement in patients with acute or subacute portal hypertension. Gastrointest Endosc. 2021 Mar;93(3):565-572. doi: 10.1016/j.gie.2020.06.065. Epub 2020 Jun 29.
- Rossle M, Blanke P, Fritz B, Schultheiss M, Bettinger D. Free Hepatic Vein Pressure Is Not Useful to Calculate the Portal Pressure Gradient in Cirrhosis: A Morphologic and Hemodynamic Study. J Vasc Interv Radiol. 2016 Aug;27(8):1130-7. doi: 10.1016/j.jvir.2016.03.028. Epub 2016 Jun 7.
- Silva-Junior G, Baiges A, Turon F, Torres F, Hernandez-Gea V, Bosch J, Garcia-Pagan JC. The prognostic value of hepatic venous pressure gradient in patients with cirrhosis is highly dependent on the accuracy of the technique. Hepatology. 2015 Nov;62(5):1584-92. doi: 10.1002/hep.28031. Epub 2015 Sep 30.
- Rodrigues SG, Delgado MG, Stirnimann G, Berzigotti A, Bosch J. Hepatic Venous Pressure Gradient: Measurement and Pitfalls. Clin Liver Dis. 2024 Aug;28(3):383-400. doi: 10.1016/j.cld.2024.03.009. Epub 2024 May 1.
- Groszmann RJ, Glickman M, Blei AT, Storer E, Conn HO. Wedged and free hepatic venous pressure measured with a balloon catheter. Gastroenterology. 1979 Feb;76(2):253-8.
- Reiberger T, Schwabl P, Trauner M, Peck-Radosavljevic M, Mandorfer M. Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy. J Vis Exp. 2020 Jun 18;(160). doi: 10.3791/58819.
- Singla N, Shantan V, Saraswat A, Singh AP. Advances in portal pressure measurement: Endoscopic techniques, challenges, and implications for liver transplantation. World J Hepatol. 2025 Aug 27;17(8):107679. doi: 10.4254/wjh.v17.i8.107679.
- Dhindsa BS, Tun KM, Fiedler A, Deliwala S, Saghir SM, Scholten K, Ramai D, Girotra M, Chandan S, Dhaliwal A, Bhat I, Singh S, Adler DG. Endoscopic ultrasound-guided portal pressure gradient measurement: a systematic review and meta-analysis. Ann Gastroenterol. 2024 May-Jun;37(3):356-361. doi: 10.20524/aog.2024.0882. Epub 2024 Apr 29.
- Martinez-Moreno B, Martinez Martinez J, Herrera I, Guilabert L, Rodriguez-Soler M, Bellot P, Miralles C, Pascual S, Irurzun J, Zapater P, Palazon-Azorin JM, Gil Guillen V, Jover R, Aparicio JR. Correlation of endoscopic ultrasound-guided portal pressure gradient measurements with hepatic venous pressure gradient: a prospective study. Endoscopy. 2025 Jan;57(1):62-67. doi: 10.1055/a-2369-0759. Epub 2024 Jul 18.
- Vanderschueren E, Laleman W, Bonne L, Maleux G, Wagner DR, Yeh C, Calvo A, Sendino O, Gines A, Baiges A, Bruno MJ, Garcia-Pagan JC, van der Merwe S. Endoscopic ultrasound-guided portosystemic pressure gradient measurement vs. transjugular balloon occlusion measurement in patients with cirrhosis (ENCOUNTER): A bicentric EU study. JHEP Rep. 2025 May 29;7(8):101466. doi: 10.1016/j.jhepr.2025.101466. eCollection 2025 Aug.
- Vanderschueren E, Praktiknjo M, Wiest R, Cardenas A, Trebicka J, Laleman W. Recent advances in clinical practice endohepatology: the endoscopic liver rush. Gut. 2025 Oct 8;74(11):1916-1930. doi: 10.1136/gutjnl-2025-334725.
- Wang TJ, Chang K, Rubin RA, Salgia R, Shami V, Watson A, Khara HS, Yeaton P, Adler DG, Bazarbashi AN, Benmassaoud A, Chen YI, Diehl DL, Draganov P, Duarte-Rojo A, Eves M, Fortune BE, Frandah WW, Gines A, Gjeorgjievski M, Henry ZH, James M, Jirapinyo P, Joshi T, Kankotia R, Khurana S, Kumar S, Kwo PY, Laleman W, Larghi AL, Mahon BS, McHenry SA, Mehta MJ, Mony S, Nilsson JE, Park WG, Sack J, Samarasena J, Santopaolo F, Teoh AY, Van Der Merwe S, Zucker SD, Ryou M. International Expert Delphi Consensus on Endoscopic Ultrasound-guided Portosystemic Pressure Gradient: Best Practices and Future Directions. Clin Gastroenterol Hepatol. 2025 Dec 16:S1542-3565(25)01033-X. doi: 10.1016/j.cgh.2025.12.007. Online ahead of print.
- Laleman W, Mertens J, Vanderschueren E, Praktiknjo M, Trebicka J. Advances in Endohepatology. Am J Gastroenterol. 2023 Oct 1;118(10):1756-1767. doi: 10.14309/ajg.0000000000002482. Epub 2023 Aug 23.
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart (Faktiske)
1. februar 2026
Primær færdiggørelse (Faktiske)
30. april 2026
Studieafslutning (Faktiske)
15. maj 2026
Datoer for studieregistrering
Først indsendt
8. juli 2026
Først indsendt, der opfyldte QC-kriterier
8. juli 2026
Først opslået (Faktiske)
14. juli 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
14. juli 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
8. juli 2026
Sidst verificeret
1. februar 2026
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- MSPPG1
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