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    Appendix A: Methods and literature search strategy

    NICE identified studies and reviews relevant to alcohol-mediated perivascular renal sympathetic denervation for resistant hypertension from the medical literature. The following databases were searched between the date they started to 3 May 2023: MEDLINE, PREMEDLINE, EMBASE, Cochrane Library and other databases. Trial registries and the internet were also searched (see the literature search strategy). Relevant published studies identified during consultation or resolution that are published after this date may also be considered for inclusion.

    The following inclusion criteria were applied to the abstracts identified by the literature search.

    • Publication type: clinical studies were included with emphasis on identifying good quality studies. Abstracts were excluded if they did not report clinical outcomes (safety). Reviews, editorials, and laboratory or animal studies, were also excluded and so were conference abstracts, because of the difficulty of appraising study methodology, unless they reported specific adverse events that not available in the published literature.

    • Patients with (resistant) hypertension.

    • Intervention or test: Alcohol-mediated perivascular renal sympathetic denervation.

    • Outcome: articles were retrieved if the abstract contained information relevant to the safety, efficacy, or both.

    If selection criteria could not be determined from the abstracts the full paper was retrieved.

    Potentially relevant studies not included in the main evidence summary are listed in the section on other relevant studies.

    Find out more about how NICE selects the evidence for the committee.

    Table 4 literature search strategy

    Databases

    Date searched

    Version/files

    MEDLINE (Ovid)

    03/05/2023

    1946 to May 02, 2023

    MEDLINE In-Process (Ovid)

    03/05/2023

    1946 to May 02, 2023

    MEDLINE Epubs ahead of print (Ovid)

    03/05/2023

    1946 to May 02, 2023

    EMBASE (Ovid)

    03/05/2023

    1974 to 2023 May 02

    EMBASE Conference (Ovid)

    03/05/2023

    1974 to 2023 May 02

    Cochrane Database of Systematic Reviews – CDSR (Cochrane Library)

    03/05/2023

    Issue 5 of 12, May 2023

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

    03/05/2023

    Issue 5 of 12, May 2023

    International HTA database (INAHTA)

    03/05/2023

    -

    Trial sources searched January 2023

    • Clinicaltrials.gov

    • ISRCTN

    • WHO International Clinical Trials Registry

    Websites searched January 2023

    • 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

    The following search strategy was used to identify papers in MEDLINE. A similar strategy was used to identify papers in other databases.

    MEDLINE search strategy

    1 exp Hypertension/

    2 hypertens*.tw.

    3 ((high* or raise* or elevat* or increase*) adj4 (arterial* or blood or diastolic* or systolic*) adj4 pressure*).tw.

    4 (HPB or SBP or DBP or HTN).tw.

    5 ((resistant* or refract* or uncontrolled*) adj4 (arterial* or blood or diastolic* or systolic*) adj4 pressure*).tw.

    6 or/1-5

    7 exp Sympathectomy/

    8 Sympathetic Nervous System/

    9 denervation/

    10 catheter ablation/

    11 or/7-10

    12 Kidney/

    13 Renal Artery/

    14 (Kidney or Renal).tw.

    15 or/12-14

    16 11 and 15

    17 ((kidney* or renal) adj4 (denervat* or sympathe* or catheter* or ablat* or neurectom* or neurotom* or perivascul*)).tw.

    18 (RSD or RDN).tw.

    19 or/16-18

    20 6 and 19

    21 Ethanol/

    22 (ethyl* or ethan* or alcohol*or chemical*).tw.

    23 Phenol*.tw.

    24 Phenol/

    25 neurolytic agent/

    26 (neurolytic* adj 4 agent*).tw.

    27 or/21-26

    28 20 and 27

    29 (Peregrine adj4 (system* or cathet*)).tw.

    30 28 or 29

    31 Animals/ not Humans/

    32 30 not 31