{"id":"https://openalex.org/W2015479536","doi":"https://doi.org/10.1111/j.1540-8159.1998.tb01187.x","title":"QT Variability Before and After Episodes of Nonsustained Ventricular Tachycardia in Patients with Hypertrophic Cardiomyopathy","display_name":"QT Variability Before and After Episodes of Nonsustained Ventricular Tachycardia in Patients with Hypertrophic Cardiomyopathy","publication_year":1998,"publication_date":"1998-11-01","ids":{"openalex":"https://openalex.org/W2015479536","doi":"https://doi.org/10.1111/j.1540-8159.1998.tb01187.x","mag":"2015479536","pmid":"https://pubmed.ncbi.nlm.nih.gov/9825353"},"language":"en","primary_location":{"id":"doi:10.1111/j.1540-8159.1998.tb01187.x","doi":"https://doi.org/10.1111/j.1540-8159.1998.tb01187.x","is_oa":false,"landing_page_url":"https://doi.org/10.1111/j.1540-8159.1998.tb01187.x","pdf_url":null,"source":{"id":"https://openalex.org/S128634829","display_name":"Pacing and Clinical Electrophysiology","issn_l":"0147-8389","issn":["0147-8389","1540-8159"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-40","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Pacing and Clinical Electrophysiology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","pubmed"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"NICK E. MEZILIS","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210138654","display_name":"University Hospital of Heraklion","ror":"https://ror.org/0312m2266","country_code":"GR","type":"healthcare","lineage":["https://openalex.org/I4210138654"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"NICK E. MEZILIS","raw_affiliation_strings":["Cardiology Department, Heraklion University Hospital, Crete, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cardiology Department, Heraklion University Hospital, Crete, Greece","institution_ids":["https://openalex.org/I4210138654"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060903465","display_name":"FRAGISKOS I. PARTHENAKIS","orcid":"https://orcid.org/0000-0003-0208-2161","observed_orcids":["https://orcid.org/0000-0003-0208-2161"]},"institutions":[{"id":"https://openalex.org/I4210138654","display_name":"University Hospital of Heraklion","ror":"https://ror.org/0312m2266","country_code":"GR","type":"healthcare","lineage":["https://openalex.org/I4210138654"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"FRAGISKOS I. PARTHENAKIS","raw_affiliation_strings":["Cardiology Department, Heraklion University Hospital, Heraklion, Crete, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cardiology Department, Heraklion University Hospital, Heraklion, Crete, Greece","institution_ids":["https://openalex.org/I4210138654"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019512960","display_name":"Marina K. Kanakaraki","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210138654","display_name":"University Hospital of Heraklion","ror":"https://ror.org/0312m2266","country_code":"GR","type":"healthcare","lineage":["https://openalex.org/I4210138654"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"MARINA K. KANAKARAKI","raw_affiliation_strings":["Cardiology Department, Heraklion University Hospital, Heraklion, Crete, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cardiology Department, Heraklion University Hospital, Heraklion, Crete, Greece","institution_ids":["https://openalex.org/I4210138654"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066920533","display_name":"E. M. Kanoupakis","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210138654","display_name":"University Hospital of Heraklion","ror":"https://ror.org/0312m2266","country_code":"GR","type":"healthcare","lineage":["https://openalex.org/I4210138654"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"EMMANOUEL M. KANOUPAKIS","raw_affiliation_strings":["Cardiology Department, Heraklion University Hospital, Heraklion, Crete, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cardiology Department, Heraklion University Hospital, Heraklion, Crete, Greece","institution_ids":["https://openalex.org/I4210138654"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103224780","display_name":"Panos E. Vardas","orcid":"https://orcid.org/0000-0002-4499-0806","observed_orcids":["https://orcid.org/0000-0002-4499-0806","https://orcid.org/0000-0002-1872-5347"]},"institutions":[{"id":"https://openalex.org/I4210138654","display_name":"University Hospital of Heraklion","ror":"https://ror.org/0312m2266","country_code":"GR","type":"healthcare","lineage":["https://openalex.org/I4210138654"]}],"countries":["GR"],"is_corresponding":true,"raw_author_name":"PANOS E. VARDAS","raw_affiliation_strings":["Cardiology Department, Heraklion University Hospital, Heraklion, Crete, Greece"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Cardiology Department, Heraklion University Hospital, Heraklion, Crete, Greece","institution_ids":["https://openalex.org/I4210138654"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5103224780"],"corresponding_institution_ids":["https://openalex.org/I4210138654"],"apc_list":{"value":4170,"currency":"USD","value_usd":4170},"apc_paid":null,"fwci":1.0008,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.78549233,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"21","issue":"11","first_page":"2387","last_page":"2391"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10217","display_name":"Cardiac electrophysiology and arrhythmias","score":0.9854000210762024,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular Medicine"},"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/T10217","display_name":"Cardiac electrophysiology and arrhythmias","score":0.9854000210762024,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/T10882","display_name":"Cardiomyopathy and Myosin Studies","score":0.003100000089034438,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/T11217","display_name":"Cardiac Arrhythmias and Treatments","score":0.0024999999441206455,"subfield":{"id":"https://openalex.org/subfields/2705","display_name":"Cardiology and Cardiovascular 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/hypertrophic-cardiomyopathy","display_name":"hypertrophic cardiomyopathy","score":0.9359999895095825},{"id":"https://openalex.org/keywords/nonsustained-ventricular-tachycardia","display_name":"non-sustained ventricular tachycardia","score":0.9900000095367432},{"id":"https://openalex.org/keywords/qt-interval-variability","display_name":"QT interval variability","score":0.9100000262260437},{"id":"https://openalex.org/keywords/qtc-interval","display_name":"QTc interval","score":0.7210000157356262},{"id":"https://openalex.org/keywords/t-wave","display_name":"T wave","score":0.5170000195503235},{"id":"https://openalex.org/keywords/ventricular-arrhythmias","display_name":"ventricular arrhythmias","score":0.7129999995231628}],"concepts":[{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.916963517665863},{"id":"https://openalex.org/C2780185194","wikidata":"https://www.wikidata.org/wiki/Q1364270","display_name":"Hypertrophic cardiomyopathy","level":2,"score":0.8615769147872925},{"id":"https://openalex.org/C164705383","wikidata":"https://www.wikidata.org/wiki/Q10379","display_name":"Cardiology","level":1,"score":0.703667402267456},{"id":"https://openalex.org/C126322002","wikidata":"https://www.wikidata.org/wiki/Q11180","display_name":"Internal medicine","level":1,"score":0.6771746873855591},{"id":"https://openalex.org/C2776331378","wikidata":"https://www.wikidata.org/wiki/Q56002","display_name":"Ventricular tachycardia","level":2,"score":0.6643440127372742},{"id":"https://openalex.org/C111773187","wikidata":"https://www.wikidata.org/wiki/Q1969239","display_name":"QRS complex","level":2,"score":0.6603306531906128},{"id":"https://openalex.org/C118441451","wikidata":"https://www.wikidata.org/wiki/Q12074763","display_name":"QT interval","level":2,"score":0.595635175704956},{"id":"https://openalex.org/C2780283014","wikidata":"https://www.wikidata.org/wiki/Q209583","display_name":"Tachycardia","level":2,"score":0.4430769979953766},{"id":"https://openalex.org/C42219234","wikidata":"https://www.wikidata.org/wiki/Q131130","display_name":"Anesthesia","level":1,"score":0.4203246831893921}],"mesh":[{"descriptor_ui":"D002312","descriptor_name":"Cardiomyopathy, Hypertrophic","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":true},{"descriptor_ui":"D002312","descriptor_name":"Cardiomyopathy, Hypertrophic","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false},{"descriptor_ui":"D006801","descriptor_name":"Humans","qualifier_ui":null,"qualifier_name":null,"is_major_topic":false},{"descriptor_ui":"D012815","descriptor_name":"Signal Processing, Computer-Assisted","qualifier_ui":null,"qualifier_name":null,"is_major_topic":true},{"descriptor_ui":"D015716","descriptor_name":"Electrocardiography, Ambulatory","qualifier_ui":"Q000379","qualifier_name":"methods","is_major_topic":true},{"descriptor_ui":"D017180","descriptor_name":"Tachycardia, Ventricular","qualifier_ui":"Q000175","qualifier_name":"diagnosis","is_major_topic":true},{"descriptor_ui":"D017180","descriptor_name":"Tachycardia, Ventricular","qualifier_ui":"Q000503","qualifier_name":"physiopathology","is_major_topic":false}],"locations_count":2,"locations":[{"id":"doi:10.1111/j.1540-8159.1998.tb01187.x","doi":"https://doi.org/10.1111/j.1540-8159.1998.tb01187.x","is_oa":false,"landing_page_url":"https://doi.org/10.1111/j.1540-8159.1998.tb01187.x","pdf_url":null,"source":{"id":"https://openalex.org/S128634829","display_name":"Pacing and Clinical Electrophysiology","issn_l":"0147-8389","issn":["0147-8389","1540-8159"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","doyens","jufo-1","ki-jl-1","medline","norway-1","poland-40","russia-white-list-3","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Pacing and Clinical Electrophysiology","raw_type":"journal-article"},{"id":"pmid:9825353","doi":null,"is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/9825353","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Pacing and clinical electrophysiology : PACE","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.98580002784729,"display_name":"Good health and well-being","id":"https://metadata.un.org/sdg/3"}],"study_designs":[{"display_name":"Observational Study","id":"https://openalex.org/study-designs/observational-study"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1963955659","https://openalex.org/W1983558261","https://openalex.org/W1985609494","https://openalex.org/W1989532407","https://openalex.org/W1990723202","https://openalex.org/W1991290782","https://openalex.org/W1997433411","https://openalex.org/W2015427229","https://openalex.org/W2025621154","https://openalex.org/W2026883541","https://openalex.org/W2039074859","https://openalex.org/W2073709523","https://openalex.org/W2074427941","https://openalex.org/W2085641338","https://openalex.org/W2091058874","https://openalex.org/W2095094855","https://openalex.org/W2110061674","https://openalex.org/W2119689393","https://openalex.org/W2149150880","https://openalex.org/W2158611746","https://openalex.org/W2249672731"],"related_works":["https://openalex.org/W1982805562","https://openalex.org/W2119499541","https://openalex.org/W1970783811","https://openalex.org/W2004643008","https://openalex.org/W2015427229","https://openalex.org/W2184581197","https://openalex.org/W4256070385","https://openalex.org/W2070440570","https://openalex.org/W2317767143","https://openalex.org/W2039074859"],"abstract_inverted_index":{"This":[0],"study":[1],"examined":[2],"the":[3,43,51,80,85,88,96,99,102,105,126,130,135,211,221,228],"changes":[4],"in":[5,25,37,42,165,169,202,217],"QT":[6,54,121],"dynamics":[7],"occurring":[8],"during":[9],"5-minute":[10,142],"intervals":[11],"sampled":[12],"immediately":[13,146],"before":[14,147,208,233],"and":[15,48,65,84,91,101,115,132,150,182,206,209,227],"1":[16,151],"hour":[17,32,152],"after":[18,153,210],"episodes":[19,157,234],"of":[20,45,82,87,98,104,120,125,158,235],"nonsustained":[21,159,236],"ventricular":[22],"tachycardia":[23],"(VT)":[24],"patients":[26,39,218],"with":[27,40,110,219],"hypertrophic":[28],"cardiomyopathy":[29],"(HCM).":[30],"Twenty-four":[31],"Holter":[33],"recordings":[34],"were":[35,60,68,108,139,144,198],"performed":[36],"10":[38],"HCM":[41],"absence":[44],"antiarrhythmic":[46],"medications":[47],"processed":[49],"by":[50],"ELA":[52],"Medical":[53],"analysis":[55],"software.":[56],"All":[57],"sinus":[58],"complexes":[59],"averaged":[61,222],"over":[62],"30-second":[63],"segments":[64,143],"2,880":[66],"templates":[67],"created.":[69],"For":[70],"each":[71],"template,":[72],"a":[73],"mean":[74],"corrected":[75],"QTec":[76],"(time":[77,93],"interval":[78,94],"between":[79,95],"onset":[81,97],"QRS":[83,100],"end":[86],"T":[89,106],"wave)":[90,107],"QTac":[92,161,223],"peak":[103],"calculated,":[109],"their":[111],"standard":[112],"deviations":[113],"(SDQTe":[114],"SDQTa)":[116],"taken":[117],"as":[118],"indices":[119],"variability.":[122],"The":[123],"slopes":[124],"regression":[127],"line":[128],"for":[129],"QTe":[131],"QTa":[133,229],"against":[134],"corresponding":[136],"RR":[137],"also":[138],"calculated.":[140],"Forty":[141],"analyzed":[145],"(sample":[148,154],"A)":[149],"B)":[155],"20":[156,174],"VT.":[160,237],"was":[162,184],"significantly":[163,185,225,231],"longer":[164,226],"group":[166,170],"A":[167],"than":[168],"B":[171],"(321":[172],"+/-":[173,177,188,192],"vs":[175,190],"312":[176],"22,":[178],"P":[179,194],"<":[180,195],"0.0001)":[181],"SDQTa":[183],"lower":[186,232],"(2.8":[187],"1.2":[189],"4.7":[191],"3.7,":[193],"0.03).":[196],"There":[197],"no":[199],"significant":[200],"differences":[201],"QTec,":[203],"SDQTe,":[204],"QTe/RR":[205],"QTa/RR":[207],"episodes.":[212],"Our":[213],"data":[214],"indicate":[215],"that":[216],"HCM,":[220],"is":[224],"variability":[230]},"counts_by_year":[{"year":2014,"cited_by_count":1}],"updated_date":"2026-10-31T12:09:11.096373","created_date":"2016-06-24T00:00:00"}