{"id":"https://openalex.org/W1998741003","doi":"https://doi.org/10.1016/s0016-5107(05)00606-1","title":"Premedication with Intravenous Ketorolac in Colonoscopy: A Randomized Double-Blinded Placebo-Controlled Trial","display_name":"Premedication with Intravenous Ketorolac in Colonoscopy: A Randomized Double-Blinded Placebo-Controlled Trial","publication_year":2005,"publication_date":"2005-04-01","ids":{"openalex":"https://openalex.org/W1998741003","doi":"https://doi.org/10.1016/s0016-5107(05)00606-1","mag":"1998741003"},"language":"en","primary_location":{"id":"doi:10.1016/s0016-5107(05)00606-1","doi":"https://doi.org/10.1016/s0016-5107(05)00606-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0016-5107(05)00606-1","pdf_url":null,"source":{"id":"https://openalex.org/S28527816","display_name":"Gastrointestinal Endoscopy","issn_l":"0016-5107","issn":["0016-5107","1085-8741","1097-6779"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Gastrointestinal Endoscopy","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037447201","display_name":"Wilfred Lik\u2010Man Mui","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wilfred L. Mui","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111685795","display_name":"Wing Hang Kwong","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Wing Hang Kwong","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5077061947","display_name":"Anthony C. Li","orcid":"https://orcid.org/0000-0001-5516-1117","observed_orcids":["https://orcid.org/0000-0001-5516-1117"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Anthony Li","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076758172","display_name":"Enders K. Ng","orcid":"https://orcid.org/0000-0001-7219-5810","observed_orcids":["https://orcid.org/0000-0001-7219-5810"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Enders K. Ng","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032581980","display_name":"Alex Au-Yeung","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Alex Au Yeung","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110455316","display_name":"Chi Ming Poon","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Chi Ming Poon","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5111626870","display_name":"Heng Tat Leong","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Heng Tat Leong","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":3450,"currency":"USD","value_usd":3450},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"61","issue":"5","first_page":"AB81","last_page":"AB81"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10552","display_name":"Colorectal Cancer Screening and Detection","score":0.7666000127792358,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10552","display_name":"Colorectal Cancer Screening and Detection","score":0.7666000127792358,"subfield":{"id":"https://openalex.org/subfields/2730","display_name":"Oncology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10436","display_name":"Anesthesia and Sedative Agents","score":0.218299999833107,"subfield":{"id":"https://openalex.org/subfields/2703","display_name":"Anesthesiology and Pain Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10189","display_name":"Anesthesia and Pain Management","score":0.002199999988079071,"subfield":{"id":"https://openalex.org/subfields/2703","display_name":"Anesthesiology and Pain Medicine"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/ketorolac","display_name":"ketorolac","score":0.9850000143051147},{"id":"https://openalex.org/keywords/colonoscopy","display_name":"colonoscopy","score":0.75},{"id":"https://openalex.org/keywords/procedural-sedation","display_name":"procedural sedation","score":0.7089999914169312},{"id":"https://openalex.org/keywords/premedication","display_name":"premedication","score":0.8849999904632568},{"id":"https://openalex.org/keywords/procedural-pain","display_name":"procedural pain","score":0.7940000295639038},{"id":"https://openalex.org/keywords/patient-controlled-sedation","display_name":"patient-controlled sedation","score":0.9269999861717224},{"id":"https://openalex.org/keywords/patient-satisfaction","display_name":"patient satisfaction","score":0.6700000166893005},{"id":"https://openalex.org/keywords/hemodynamic-changes","display_name":"hemodynamic changes","score":0.7429999709129333},{"id":"https://openalex.org/keywords/repeat-colonoscopy","display_name":"repeat colonoscopy","score":0.7549999952316284}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.9811359643936157},{"id":"https://openalex.org/C2778300832","wikidata":"https://www.wikidata.org/wiki/Q1589604","display_name":"Premedication","level":2,"score":0.8510546684265137},{"id":"https://openalex.org/C2778435480","wikidata":"https://www.wikidata.org/wiki/Q840387","display_name":"Colonoscopy","level":4,"score":0.814493715763092},{"id":"https://openalex.org/C2778446825","wikidata":"https://www.wikidata.org/wiki/Q2014797","display_name":"Ketorolac","level":3,"score":0.744462788105011},{"id":"https://openalex.org/C27081682","wikidata":"https://www.wikidata.org/wiki/Q269829","display_name":"Placebo","level":3,"score":0.7214130759239197},{"id":"https://openalex.org/C168563851","wikidata":"https://www.wikidata.org/wiki/Q1436668","display_name":"Randomized controlled trial","level":2,"score":0.6354489326477051},{"id":"https://openalex.org/C2994504663","wikidata":"https://www.wikidata.org/wiki/Q608510","display_name":"Double blinded","level":4,"score":0.6152729988098145},{"id":"https://openalex.org/C42219234","wikidata":"https://www.wikidata.org/wiki/Q131130","display_name":"Anesthesia","level":1,"score":0.5360657572746277},{"id":"https://openalex.org/C141071460","wikidata":"https://www.wikidata.org/wiki/Q40821","display_name":"Surgery","level":1,"score":0.3534236252307892},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.2138136923313141},{"id":"https://openalex.org/C2780820201","wikidata":"https://www.wikidata.org/wiki/Q173235","display_name":"Analgesic","level":2,"score":0.07456359267234802},{"id":"https://openalex.org/C526805850","wikidata":"https://www.wikidata.org/wiki/Q188874","display_name":"Colorectal cancer","level":3,"score":0.06130969524383545},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0},{"id":"https://openalex.org/C121608353","wikidata":"https://www.wikidata.org/wiki/Q12078","display_name":"Cancer","level":2,"score":0.0},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0016-5107(05)00606-1","doi":"https://doi.org/10.1016/s0016-5107(05)00606-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0016-5107(05)00606-1","pdf_url":null,"source":{"id":"https://openalex.org/S28527816","display_name":"Gastrointestinal Endoscopy","issn_l":"0016-5107","issn":["0016-5107","1085-8741","1097-6779"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Gastrointestinal Endoscopy","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":1.0,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Randomized Controlled Trial","id":"https://openalex.org/study-designs/randomized-controlled-trial"},{"display_name":"Clinical Trial","id":"https://openalex.org/study-designs/clinical-trial"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2043501191","https://openalex.org/W14619319","https://openalex.org/W2358819491","https://openalex.org/W1984581495","https://openalex.org/W2148742264","https://openalex.org/W2395086401","https://openalex.org/W127748853","https://openalex.org/W2152864610","https://openalex.org/W2379404972","https://openalex.org/W4205892821"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-10-12T09:40:04.860316","created_date":"2016-06-24T00:00:00"}