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    Literature search strategy

    Databases

    Date searched

    Version/files

    Cochrane Database of Systematic Reviews – CDSR (Cochrane Library)

    26/01/2022

    Issue 1 of 12, January 2022

    Cochrane Central Database of Controlled Trials – CENTRAL (Cochrane Library)

    26/01/2022

    Issue 12 of 12, December 2021

    International HTA database

    26/01/2022

    -

    MEDLINE (Ovid)

    26/01/2022

    1946 to January 25, 2022

    MEDLINE In-Process (Ovid) & MEDLINE ePubs ahead of print (Ovid)

    26/01/2022

    1946 to January 25, 2022

    EMBASE (Ovid)

    26/01/2022

    1974 to 2022 January 25

    Embase Conference (Ovid)

    26/01/2022

    1974 to 2022 January 25

    Trial sources searched

    • Clinicaltrials.gov

    • ISRCTN

    • WHO International Clinical Trials Registry

    Websites searched

    • National Institute for Health and Care Excellence (NICE)

    • NHS England

    • Food and Drug Administration (FDA) - MAUDE database

    • Australian Safety and Efficacy Register of New Interventional Procedures – Surgical (ASERNIP – S)

    • Australia and New Zealand Horizon Scanning Network (ANZHSN)

    • General internet search

    MEDLINE search strategy

    The MEDLINE search strategy was translated for use in the other sources.

    1 ((transven* or vein* or venous*) adj4 (Obliterat* or Emboli?* or Embolotherap*)).tw.        10790

    2 Balloon Occlusion/        3685

    3 (Balloon adj4 (Tamponade or occlu* or emboli?*)).tw.        5928

    4 (BRTO or BATO or PARTO or CARTO).tw.        1282

    5 1 or 2 or 3 or 4        19233

    6 "Esophageal and Gastric Varices"/        13899

    7 ((stomach or gastr* or GI) adj4 ((vein* or venous*) adj4 (large or swollen or enlarge*))).tw.        37

    8 ((stomach or gastr* or GI) adj4 (varices or variceal)).tw.        3305

    9  or/6-8        14969

    10 5 and 9        713

    11 (Fogarty* adj4 occlu*).tw.        34

    12 10 or 11        747

    13 Animals/ not Humans/        4914420

    14 12 not 13        740