[en] Sinusoidal obstruction syndrome (SOS) formerly known as Veno-occlusive disease (VOD) is a potentially fatal complication that occurs mainly after haematopoietic cell transplantation, especially allogeneic transplantation. The liver is the principal organ affected, though other organs, such as the lungs, may also be involved to a lesser extent. The condition is characterised by obstruction of the hepatic venules, leading to sinusoidal congestion, hepatic ischaemia and, in severe cases, fulminant liver failure. Recent refined diagnostic criteria, published by the European Society for Blood and Marrow Transplantation in 2023, provide a more accurate method of detecting SOS/VOD, allowing earlier intervention and better stratification of patients according to the severity of their disease. This article focuses on liver SOS/VOD and discussing key risk factors, new diagnostic methods and therapeutic strategies, with an emphasis on the early use of defibrotide, which remains the reference treatment for severe SOS/VOD.
Disciplines :
Hematology
Author, co-author :
Larue, Marion ; Hematology Department, AP-HP, Hôpital Saint-Antoine, Sorbonne Université, Paris, France. marion.larue@hotmail.fr
Malard, Florent; Hematology Department, AP-HP, Hôpital Saint-Antoine, Sorbonne Université, Paris, France ; Sorbonne Université, Centre de Recherche Saint-Antoine, INSERM UMRs938, Paris, France
Alaskar, Ahmed S; Department of Oncology, King Abdulaziz Medical City, King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
Aljurf, Mahmoud ; King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
Arat, Mutlu; HSCT Unit, Sisli Florence Nightingale Hospital, Istanbul, Turkey
Balsat, Marie; Clinical Hematology Department, Hospices Civils de Lyon, Lyon Sud Hospital, Pierre-Bénite, France
Baron, Frédéric ; Université de Liège - ULiège > Département des sciences cliniques
Basak, Grzegorz; Medical University of Warsaw, Warsaw, Poland
Bazarbachi, Ali ; Department of Internal Medicine, American University of Beirut, Beirut, Lebanon
Bonifazi, Francesca ; IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
Brissot, Eolia ; Hematology Department, AP-HP, Hôpital Saint-Antoine, Sorbonne Université, Paris, France ; Sorbonne Université, Centre de Recherche Saint-Antoine, INSERM UMRs938, Paris, France
Ciceri, Fabio ; Hematology and Bone Marrow Transplantation Unit, IRCCS Ospedale San Raffaele, Milan, Italy ; University Vita-Salute San Raffaele, Milan, Italy
Corbacioglu, Selim ; Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, University of Regensburg, Regensburg, Germany
Dignan, Fiona; Department of Clinical Haematology, Central Manchester Foundation Trust, Manchester, UK
Huynh, Anne; Hematology Department, Institut Universitaire du Cancer Toulouse-Oncopole, Toulouse, France
Kenyon, Michelle ; Department of Haematological Medicine, King's College Hospital NHS Foundation Trust, London, UK
Kuball, Jürgen ; Department of Haematology, University Medical Centre, Utrecht, The Netherlands
Lachance, Silvy ; Department of Hematology and Stem Cell Transplant Program, Hôpital Maisonneuve-Rosemont, University of Montreal, Montreal, QC, Canada
Masszi, Tamas; Department of Internal Medicine, Semmelweis University, Budapest, Hungary
Nagler, Arnon ; Hematology and Bone Marrow Transplantation, Chaim Sheba Medical Center, Tel-Hashomer, Israel
Okamoto, Shinichiro; Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
Pagliuca, Antonio ; Department of Haematological Medicine, King's College Hospital, London, UK
Ruggeri, Annalisa ; Hematology and Bone Marrow Transplantation Unit, IRCCS Ospedale San Raffaele, Milan, Italy
Ruutu, Tapani ; Clinical Research Institute and Unit of Coagulation Disorders, Comprehensive Cancer Center, Helsinki University Hospital, and Research Program Unit in Systems Oncology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
Yakoub-Agha, Ibrahim; CHU de Lille, Univ de Lille, LIRIC INSERM U1286995, Université de Lille 2 Infinite, Lille, France
Ye, Yishan ; Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
Duarte, Rafael F ; Department of Hematology, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
Perić, Zinaida; Department of hematology, University Hospital Centre Rijeka, Rijeka, Croatia
Carreras, Enric ; Hematology Department, Josep Carreras Foundation and Leukemia Research Institute, Hospital Clínic, Barcelona, Spain
Mohty, Mohamad ; Hematology Department, AP-HP, Hôpital Saint-Antoine, Sorbonne Université, Paris, France ; Sorbonne Université, Centre de Recherche Saint-Antoine, INSERM UMRs938, Paris, France
M. Mohty F. Malard A.S. Alaskar M. Aljurf M. Arat P. Bader et al. Diagnosis and severity criteria for sinusoidal obstruction syndrome/veno-occlusive disease in adult patients: a refined classification from the European society for blood and marrow transplantation (EBMT) Bone Marrow Transpl 58 749 54 10.1038/s41409-023-01992-8
G. Bras K.R. Hill Veno-occlusive disease of the liver; essential pathology Lancet 271 161 3 1:STN:280:DyaG28%2FpvFyhug%3D%3D 13347104 10.1016/S0140-6736(56)91692-0
P. Jacobs J.L. Miller C.J. Uys B.E. Dietrich Fatal veno-occlusive disease of the liver after chemotherapy, whole-body irradiation and bone marrow transplantation for refractory acute leukaemia S Afr Med J 55 5 10 1:STN:280:DyaE1M7jvFWqtg%3D%3D 371033
P.D. Berk H. Popper G.R. Krueger J. Decter G. Herzig R.G. Graw Veno-occlusive disease of the liver after allogeneic bone marrow transplantation: possible association with graft-versus-host disease Ann Intern Med 90 158 64 1:STN:280:DyaE1M7osFyjtw%3D%3D 36019 10.7326/0003-4819-90-2-158
G.B. McDonald P. Sharma D.E. Matthews H.M. Shulman E.D. Thomas Venocclusive disease of the liver after bone marrow transplantation: diagnosis, incidence, and predisposing factors Hepatology 4 116 22 1:STN:280:DyaL2c7htVSisg%3D%3D 6363247 10.1002/hep.1840040121
R.J. Jones K.S. Lee W.E. Beschorner V.G. Vogel L.B. Grochow H.G. Braine et al. Venoocclusive disease of the liver following bone marrow transplantation Transplantation 44 778 83 1:STN:280:DyaL1c7gtVyhsw%3D%3D 3321587 10.1097/00007890-198712000-00011
M. Mohty F. Malard M. Abecassis E. Aerts A.S. Alaskar M. Aljurf et al. Revised diagnosis and severity criteria for sinusoidal obstruction syndrome/veno-occlusive disease in adult patients: a new classification from the European Society for Blood and Marrow Transplantation Bone Marrow Transpl 51 906 12 1:CAS:528:DC%2BC28XotFahtbY%3D 10.1038/bmt.2016.130
H. Ichikawa K. Yakushijin K. Kurata T. Tsuji N. Takemoto M. Joyce et al. Utility of the refined EBMT diagnostic and severity criteria 2023 for sinusoidal obstruction syndrome/veno-occlusive disease Bone Marrow Transpl 59 518 25 1:CAS:528:DC%2BB2cXitlOqsLs%3D 10.1038/s41409-024-02215-4
A. Colecchia F. Ravaioli M. Sessa V.L. Alemanni E. Dajti G. Marasco et al. Liver stiffness measurement allows early diagnosis of veno-occlusive disease/sinusoidal obstruction syndrome in adult patients who undergo hematopoietic stem cell transplantation: results from a monocentric prospective study Biol Blood Marrow Transpl 25 995 1003 10.1016/j.bbmt.2019.01.019
A. Colecchia G. Marasco F. Ravaioli K. Kleinschmidt R. Masetti A. Prete et al. Usefulness of liver stiffness measurement in predicting hepatic veno-occlusive disease development in patients who undergo HSCT Bone Marrow Transpl 52 494 7 1:CAS:528:DC%2BC28XitFahsL7L 10.1038/bmt.2016.320
P.E. Debureaux P. Bourrier P.E. Rautou A.M. Zagdanski M. De Boutiny S. Pagliuca et al. Elastography improves accuracy of early hepato-biliary complications diagnosis after allogeneic stem cell transplantation Haematologica 106 2374 83 1:CAS:528:DC%2BB3MXitFGgtLnF 32732366 10.3324/haematol.2019.245407
T. Cañas O. Suárez I. Rozas M. Escribano B. Molina M. González-Vicent et al. Point shear-wave elastography for the diagnosis of veno-occlusive disease in children and young adults Pediatr Radio 53 2013 20 10.1007/s00247-023-05703-9
N. Reddivalla A.L. Robinson K.J. Reid M.A. Radhi J. Dalal E.K. Opfer et al. Using liver elastography to diagnose sinusoidal obstruction syndrome in pediatric patients undergoing hematopoetic stem cell transplant Bone Marrow Transpl 55 523 30 1:CAS:528:DC%2BC1cXoslSjt78%3D 10.1038/s41409-017-0064-6
Y. Inoue S. Saitoh H. Denpo K. Yamaguchi K. Kubota Y. Taya et al. Utility of liver stiffness measurement in the diagnosis of sinusoidal obstruction syndrome/veno-occlusive disease after hematopoietic stem cell transplantation J Med Ultrason (2001) 51 311 21 38112930 10.1007/s10396-023-01392-x
M. Schulz L.G. Vuong H.P. Müller M. Maibier F. Tacke I.W. Blau et al. Shear wave elastography in the detection of sinusoidal obstruction syndrome in adult patients undergoing allogenic hematopoietic stem cell transplantation Diagnostics (Basel) 11 928 1:CAS:528:DC%2BB3MXis1Sgs7zE 34064217 10.3390/diagnostics11060928
Y.S. Lee S. Lee Y.H. Choi Y.J. Cho S.B. Lee J.E. Cheon et al. Usefulness of two-dimensional shear wave elastography in diagnosing hepatic veno-occlusive disease in pediatric patients undergoing hematopoietic stem cell transplantation Ultrasonography 42 286 96 36935595 10.14366/usg.22107
D. Vythoulkas P. Tsirigotis M. Griniezaki I. Konstantellos I. Lazana Endothelial dysfunction syndromes after allogeneic stem cell transplantation Cancers (Basel) 15 680 1:CAS:528:DC%2BB3sXjtlars74%3D 36765638 9913851 10.3390/cancers15030680
M.S. Cairo K.R. Cooke H.M. Lazarus N. Chao Modified diagnostic criteria, grading classification and newly elucidated pathophysiology of hepatic SOS/VOD after haematopoietic cell transplantation Br J Haematol 190 822 36 32133623 7483983 10.1111/bjh.16557
S. Corbacioglu E.J. Jabbour M. Mohty Risk factors for development of and progression of hepatic veno-occlusive disease/sinusoidal obstruction syndrome Biol Blood Marrow Transpl 25 1271 80 10.1016/j.bbmt.2019.02.018
Larue M, Labopin M, Brissot E, Alaskar AS, Aljurf M, Arat M, et al. An international survey to better understand the current incidence, severity, and management of VOD/SOS. Bone Marrow Transplant. 2025;60:28–31.
C. Strouse Y. Zhang M.J. Zhang A. DiGilio M. Pasquini M.M. Horowitz et al. Risk score for the development of veno-occlusive disease after allogeneic hematopoietic cell transplant Biol Blood Marrow Transpl 24 2072 80 10.1016/j.bbmt.2018.06.013
E. Wallhult M. Kenyon S. Liptrott A. Mank M. Ní Chonghaile A. Babic et al. Management of veno-occlusive disease: the multidisciplinary approach to care Eur J Haematol 98 322 9 27992075 10.1111/ejh.12840
Hardouin G, Miccio A, Brusson M. Gene therapy for β-thalassemia: current and future options. Trends Mol Med. 2025;31:344–58.
Ballantine J, Tisdale JF. Gene therapy for sickle cell disease: recent advances, clinical trials and future directions. Cytotherapy. 2024:S1465-3249(24)00925-3.
M. Dimitrievska D. Bansal M. Vitale J. Strouboulis A. Miccio K.H. Nicolaides et al. Revolutionising healing: gene Editing’s breakthrough against sickle cell disease Blood Rev 65 1:CAS:528:DC%2BB2cXmtlOktb0%3D 38493007 10.1016/j.blre.2024.101185 101185
H. Frangoul F. Locatelli A. Sharma M. Bhatia M. Mapara L. Molinari et al. Exagamglogene autotemcel for severe sickle cell disease N Engl J Med 390 1649 62 1:CAS:528:DC%2BB2cXhtFWitbbK 38661449 10.1056/NEJMoa2309676
L.E. Roeker H.T. Kim B. Glotzbecker P. Nageshwar S. Nikiforow J. Koreth et al. Early clinical predictors of hepatic veno-occlusive disease/sinusoidal obstruction syndrome after myeloablative stem cell transplantation Biol Blood Marrow Transpl 25 137 44 10.1016/j.bbmt.2018.07.039
S. Putta B. Young P. Pine J. Shi V. Amber W. Saber et al. Verification of the prediction accuracy of a biomarker-based prognostic for veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) after hematopoietic cell transplantation (HCT) Transpl Cell Ther 30 986.e1 986.e7 10.1016/j.jtct.2024.07.010
S. Jiang O. Penack T. Terzer D. Schult J. Majer-Lauterbach A. Radujkovic et al. Predicting sinusoidal obstruction syndrome after allogeneic stem cell transplantation with the EASIX biomarker panel Haematologica 106 446 53 1:CAS:528:DC%2BB3MXnslynsbk%3D 31974195 10.3324/haematol.2019.238790
S.S. Chan A. Colecchia R.F. Duarte F. Bonifazi F. Ravaioli J.H. Bourhis Imaging in hepatic veno-occlusive disease/sinusoidal obstruction syndrome Biol Blood Marrow Transpl 26 1770 9 10.1016/j.bbmt.2020.06.016
S. Simpson E. Breshears D. Basavalingu G. Khatri S. Chan J. Fite et al. Review of imaging findings in hepatic veno-occlusive disease Eur J Radio 177 10.1016/j.ejrad.2024.111526 111526
C.F. Dietrich J. Bamber A. Berzigotti S. Bota V. Cantisani L. Castera et al. EFSUMB guidelines and recommendations on the clinical use of liver ultrasound elastography, update 2017 (short version) Ultraschall Med 38 377 94 28407654 10.1055/s-0043-103955
R. de Franchis J. Bosch G. Garcia-Tsao T. Reiberger C. Ripoll Baveno VII Faculty. Baveno VII - Renewing consensus in portal hypertension J Hepatol 76 959 74 35120736 10.1016/j.jhep.2021.12.022
P.G. Richardson M.L. Riches N.A. Kernan J.A. Brochstein S. Mineishi A.M. Termuhlen et al. Phase 3 trial of defibrotide for the treatment of severe veno-occlusive disease and multi-organ failure Blood 127 1656 65 1:CAS:528:DC%2BC28Xhs1ehurrN 26825712 4817309 10.1182/blood-2015-10-676924
P.G. Richardson E. Carreras M. Iacobelli B. Nejadnik The use of defibrotide in blood and marrow transplantation Blood Adv 2 1495 509 1:CAS:528:DC%2BC1MXlvVKgtLY%3D 29945939 6020812 10.1182/bloodadvances.2017008375
M. Nauffal H.T. Kim P.G. Richardson R.J. Soiffer J.H. Antin C. Cutler et al. Defibrotide: real-world management of veno-occlusive disease/sinusoidal obstructive syndrome after stem cell transplant Blood Adv 6 181 8 1:CAS:528:DC%2BB38XhtVOrsbnN 34666352 8753224 10.1182/bloodadvances.2021005410
M. Mohty M.L. Battista D. Blaise E. Calore S. Cesaro N. Maximova et al. A multicentre, multinational, prospective, observational registry study of defibrotide in patients diagnosed with veno-occlusive disease/sinusoidal obstruction syndrome after haematopoietic cell transplantation: an EBMT study Bone Marrow Transpl 56 2454 63 1:CAS:528:DC%2BB3MXhsVegtbjI 10.1038/s41409-021-01265-2
S. Corbacioglu O. Topaloglu S. Aggarwal A systematic review and meta-analysis of studies of defibrotide prophylaxis for veno-occlusive disease/sinusoidal obstruction syndrome Clin Drug Investig 42 465 76 1:CAS:528:DC%2BB38XhvVaku7bI 35594010 9188533 10.1007/s40261-022-01140-y
M. Mohty D. Blaise R. Peffault de Latour M. Labopin J.H. Bourhis B. Bruno et al. Real-world use of defibrotide for veno-occlusive disease/sinusoidal obstruction syndrome: the DEFIFrance Registry Study Bone Marrow Transpl 58 367 76 1:CAS:528:DC%2BB38Xjt1Sntr7K 10.1038/s41409-022-01900-6
I. Gómez-Centurión R. Bailén G. Oarbeascoa C. Muñoz A.Á. Luque M.E. Boyra et al. Transjugular intrahepatic portosystemic shunt for very severe veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) after unmanipulated haploidentical hematopoietic stem cell transplantation with post-transplantation cyclophosphamide Biol Blood Marrow Transpl 26 2089 97 10.1016/j.bbmt.2020.08.006
C. Marcoux R.M. Saliba W. Wallis S. Khazal D. Ragoonanan G. Rondon et al. Incidence and risk factors of early onset VOD/SOS differ in younger vs older adults after stem cell transplantation Blood Adv 8 1128 36 1:CAS:528:DC%2BB2cXltVGjsLk%3D 38266155 10909702 10.1182/bloodadvances.2023011233
J.R. Petrie T.J. Guzik R.M. Touyz Diabetes, hypertension, and cardiovascular disease: clinical insights and vascular mechanisms Can J Cardiol 34 575 84 29459239 10.1016/j.cjca.2017.12.005
R.P. Hebbel G.M. Vercellotti Multiple inducers of endothelial NOS (eNOS) dysfunction in sickle cell disease Am J Hematol 96 1505 17 1:CAS:528:DC%2BB3MXisV2mtbbJ 34331722 9292023 10.1002/ajh.26308
C. Caruso X. Cheng M.E. Michaud H.M. Szafraniec B.E. Thomas M.E. Fay et al. Less-deformable erythrocyte subpopulations biomechanically induce endothelial inflammation in sickle cell disease Blood 144 2050 62 1:CAS:528:DC%2BB2cXisVKmtLjO 39178344 10.1182/blood.2024024608
M. Farina M.C. Scaini A. Facchinetti A. Leoni S. Bernardi C. Catoni et al. Evaluation of circulating endothelial cells as direct marker of endothelial damage in allo-transplant recipients at high risk of hepatic veno-occlusive disease/sinusoidal obstruction syndrome Transpl Cell Ther 30 580.e1 580.e14 10.1016/j.jtct.2024.03.026