Signal-averaged Electrocardiogram Shows a Heart Rate Dependent Diurnal Variation in Healthy Subjects
It has not been determined if signal-averaged electrocardiograms (SAECGs) have a diurnal variation. We recorded 3-channel 24-hour ECGs in 30 healthy volunteers and calculated the following parameters for the first 500sec of every hour over the 24-hour period: the mean heart rate, the filtered QRS du...
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| Veröffentlicht in: | Japanese Heart Journal 1998, Vol.39(2), pp.147-152 |
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| container_title | Japanese Heart Journal |
| container_volume | 39 |
| creator | NAKAGAWA, Mikiko ODA, Mari IWAO, Tetsu ISHIDA, Shuji YONEMOCHI, Hidetoshi FUJINO, Takao SAIKAWA, Tetsunori ITO, Morio |
| description | It has not been determined if signal-averaged electrocardiograms (SAECGs) have a diurnal variation. We recorded 3-channel 24-hour ECGs in 30 healthy volunteers and calculated the following parameters for the first 500sec of every hour over the 24-hour period: the mean heart rate, the filtered QRS duration (f-QRS), the root-mean-square voltage of the signals in the last 40msec of the QRS (RMS40), and the duration of low-amplitude signals ( |
| doi_str_mv | 10.1536/ihj.39.147 |
| format | Article |
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We recorded 3-channel 24-hour ECGs in 30 healthy volunteers and calculated the following parameters for the first 500sec of every hour over the 24-hour period: the mean heart rate, the filtered QRS duration (f-QRS), the root-mean-square voltage of the signals in the last 40msec of the QRS (RMS40), and the duration of low-amplitude signals (<40μV) in the terminal portion of the QRS (LAS40). Heart rate and RMS40 increased in the daytime compared with the nighttime; f-QRS and LAS40 increased during the nighttime hours. The f-QRS and LAS40 were negatively correlated with heart rate in all and 22 (73%) of 30 subjects, respectively, and RMS40 was positively correlated with heart rate in 21 subjects (70%). In conclusion, SAECGs exhibit a clear diurnal variation in healthy subjects, which is closely related to changes in heart rate.</description><identifier>ISSN: 0021-4868</identifier><identifier>EISSN: 1348-673X</identifier><identifier>DOI: 10.1536/ihj.39.147</identifier><identifier>PMID: 9687823</identifier><identifier>CODEN: JHEJAR</identifier><language>eng</language><publisher>Tokyo: International Heart Journal Association</publisher><subject>Adult ; Autonomic tone ; Biological and medical sciences ; Circadian Rhythm - physiology ; Diurnal variation ; Electrocardiography - methods ; Electrocardiography. Vectocardiography ; Electrodiagnosis. Electric activity recording ; Female ; Heart rate ; Heart Rate - physiology ; Humans ; Investigative techniques, diagnostic techniques (general aspects) ; Male ; Medical sciences ; Signal-averaged ECG</subject><ispartof>Japanese Heart Journal, 1998, Vol.39(2), pp.147-152</ispartof><rights>by International Heart Journal Association</rights><rights>1998 INIST-CNRS</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c574t-45929e4d3a11921813cecdf344b9abf904545bf33f975a712825a4a13da6e4c33</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,1877,4010,27904,27905,27906</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2303134$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9687823$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>NAKAGAWA, Mikiko</creatorcontrib><creatorcontrib>ODA, Mari</creatorcontrib><creatorcontrib>IWAO, Tetsu</creatorcontrib><creatorcontrib>ISHIDA, Shuji</creatorcontrib><creatorcontrib>YONEMOCHI, Hidetoshi</creatorcontrib><creatorcontrib>FUJINO, Takao</creatorcontrib><creatorcontrib>SAIKAWA, Tetsunori</creatorcontrib><creatorcontrib>ITO, Morio</creatorcontrib><title>Signal-averaged Electrocardiogram Shows a Heart Rate Dependent Diurnal Variation in Healthy Subjects</title><title>Japanese Heart Journal</title><addtitle>Jpn Heart J</addtitle><description>It has not been determined if signal-averaged electrocardiograms (SAECGs) have a diurnal variation. We recorded 3-channel 24-hour ECGs in 30 healthy volunteers and calculated the following parameters for the first 500sec of every hour over the 24-hour period: the mean heart rate, the filtered QRS duration (f-QRS), the root-mean-square voltage of the signals in the last 40msec of the QRS (RMS40), and the duration of low-amplitude signals (<40μV) in the terminal portion of the QRS (LAS40). Heart rate and RMS40 increased in the daytime compared with the nighttime; f-QRS and LAS40 increased during the nighttime hours. The f-QRS and LAS40 were negatively correlated with heart rate in all and 22 (73%) of 30 subjects, respectively, and RMS40 was positively correlated with heart rate in 21 subjects (70%). In conclusion, SAECGs exhibit a clear diurnal variation in healthy subjects, which is closely related to changes in heart rate.</description><subject>Adult</subject><subject>Autonomic tone</subject><subject>Biological and medical sciences</subject><subject>Circadian Rhythm - physiology</subject><subject>Diurnal variation</subject><subject>Electrocardiography - methods</subject><subject>Electrocardiography. Vectocardiography</subject><subject>Electrodiagnosis. Electric activity recording</subject><subject>Female</subject><subject>Heart rate</subject><subject>Heart Rate - physiology</subject><subject>Humans</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Signal-averaged ECG</subject><issn>0021-4868</issn><issn>1348-673X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNo9kUFr2zAYhsXY6NJ2l90HOoweCs4kfbItHUfarYPCoFnHbuaz_DlRcOxMsjv67yeTkIt0eB-9Lzxi7KMUS5lD8cVvd0uwS6nLN2whQZusKOHPW7YQQslMm8K8Z5cx7oSQhTJwwS5sYUqjYMGatd_02GX4QgE31PD7jtwYBoeh8cMm4J6vt8O_yJE_EIaRP-FI_I4O1DfUj_zOTyG9578xeBz90HPfz2Q3bl_5eqp3qS1es3ctdpE-nO4r9vzt_tfqIXv8-f3H6utj5vJSj5nOrbKkG0AprZJGgiPXtKB1bbFurdC5zusWoLVljqVURuWoUUKDBWkHcMVujr2HMPydKI7V3kdHXYc9DVOsjBAaVDmDt0fQhSHGQG11CH6P4bWSopqVVklpBbZKShP86dQ61XtqzujJYco_n3KMDrs2YO98PGMKBKQ_SdjqiO3imEyf8yTVu47mRWkLMa-q45HGz6nbYqioh_9coJZv</recordid><startdate>1998</startdate><enddate>1998</enddate><creator>NAKAGAWA, Mikiko</creator><creator>ODA, Mari</creator><creator>IWAO, Tetsu</creator><creator>ISHIDA, Shuji</creator><creator>YONEMOCHI, Hidetoshi</creator><creator>FUJINO, Takao</creator><creator>SAIKAWA, Tetsunori</creator><creator>ITO, Morio</creator><general>International Heart Journal Association</general><general>Japanese Heart Journal Association</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>1998</creationdate><title>Signal-averaged Electrocardiogram Shows a Heart Rate Dependent Diurnal Variation in Healthy Subjects</title><author>NAKAGAWA, Mikiko ; ODA, Mari ; IWAO, Tetsu ; ISHIDA, Shuji ; YONEMOCHI, Hidetoshi ; FUJINO, Takao ; SAIKAWA, Tetsunori ; ITO, Morio</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c574t-45929e4d3a11921813cecdf344b9abf904545bf33f975a712825a4a13da6e4c33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Adult</topic><topic>Autonomic tone</topic><topic>Biological and medical sciences</topic><topic>Circadian Rhythm - physiology</topic><topic>Diurnal variation</topic><topic>Electrocardiography - methods</topic><topic>Electrocardiography. Vectocardiography</topic><topic>Electrodiagnosis. Electric activity recording</topic><topic>Female</topic><topic>Heart rate</topic><topic>Heart Rate - physiology</topic><topic>Humans</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Signal-averaged ECG</topic><toplevel>online_resources</toplevel><creatorcontrib>NAKAGAWA, Mikiko</creatorcontrib><creatorcontrib>ODA, Mari</creatorcontrib><creatorcontrib>IWAO, Tetsu</creatorcontrib><creatorcontrib>ISHIDA, Shuji</creatorcontrib><creatorcontrib>YONEMOCHI, Hidetoshi</creatorcontrib><creatorcontrib>FUJINO, Takao</creatorcontrib><creatorcontrib>SAIKAWA, Tetsunori</creatorcontrib><creatorcontrib>ITO, Morio</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Japanese Heart Journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>NAKAGAWA, Mikiko</au><au>ODA, Mari</au><au>IWAO, Tetsu</au><au>ISHIDA, Shuji</au><au>YONEMOCHI, Hidetoshi</au><au>FUJINO, Takao</au><au>SAIKAWA, Tetsunori</au><au>ITO, Morio</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Signal-averaged Electrocardiogram Shows a Heart Rate Dependent Diurnal Variation in Healthy Subjects</atitle><jtitle>Japanese Heart Journal</jtitle><addtitle>Jpn Heart J</addtitle><date>1998</date><risdate>1998</risdate><volume>39</volume><issue>2</issue><spage>147</spage><epage>152</epage><pages>147-152</pages><issn>0021-4868</issn><eissn>1348-673X</eissn><coden>JHEJAR</coden><abstract>It has not been determined if signal-averaged electrocardiograms (SAECGs) have a diurnal variation. We recorded 3-channel 24-hour ECGs in 30 healthy volunteers and calculated the following parameters for the first 500sec of every hour over the 24-hour period: the mean heart rate, the filtered QRS duration (f-QRS), the root-mean-square voltage of the signals in the last 40msec of the QRS (RMS40), and the duration of low-amplitude signals (<40μV) in the terminal portion of the QRS (LAS40). Heart rate and RMS40 increased in the daytime compared with the nighttime; f-QRS and LAS40 increased during the nighttime hours. The f-QRS and LAS40 were negatively correlated with heart rate in all and 22 (73%) of 30 subjects, respectively, and RMS40 was positively correlated with heart rate in 21 subjects (70%). In conclusion, SAECGs exhibit a clear diurnal variation in healthy subjects, which is closely related to changes in heart rate.</abstract><cop>Tokyo</cop><pub>International Heart Journal Association</pub><pmid>9687823</pmid><doi>10.1536/ihj.39.147</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Japanese Heart Journal, 1998, Vol.39(2), pp.147-152 |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese |
| subjects | Adult Autonomic tone Biological and medical sciences Circadian Rhythm - physiology Diurnal variation Electrocardiography - methods Electrocardiography. Vectocardiography Electrodiagnosis. Electric activity recording Female Heart rate Heart Rate - physiology Humans Investigative techniques, diagnostic techniques (general aspects) Male Medical sciences Signal-averaged ECG |
| title | Signal-averaged Electrocardiogram Shows a Heart Rate Dependent Diurnal Variation in Healthy Subjects |
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