Decreased RR Interval Complexity and Loss of Circadian Rhythm in Patients With Congestive Heart Failure
The present study investigated how the RR interval complexity and variability and their circadian rhythms alter for patients with congestive heart failure (CHF). Sixteen patients aged between 41 and 72 years with CHF and 20 control subjects were included. 24-h ambulatory electrocardiographic recordi...
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| Veröffentlicht in: | JAPANESE CIRCULATION JOURNAL 2000, Vol.64(1), pp.39-45 |
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| creator | Kim, Sun Gil Yum, Myung Kul |
| description | The present study investigated how the RR interval complexity and variability and their circadian rhythms alter for patients with congestive heart failure (CHF). Sixteen patients aged between 41 and 72 years with CHF and 20 control subjects were included. 24-h ambulatory electrocardiographic recordings were analyzed, and digitized data was partitioned into sections of 30-min duration. For each section, time- and frequency-domain indices, and complexity indices of heart rate variability were calculated. For CHF patients, 24-h average values of all indices were significantly decreased. The circadian rhythms of mean RR intervals were preserved and resembled the abnormal circadian rhythms of the low-frequency power. The circadian rhythms of high-frequency power and all complexity indices shown in the normal control were lost. Conclusively, the patients with CHF showed decreased RR interval complexity and loss of its circadian rhythm, in addition to decreased frequency-domain RR interval variability and its abnormal circadian rhythm. |
| doi_str_mv | 10.1253/jcj.64.39 |
| format | Article |
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Sixteen patients aged between 41 and 72 years with CHF and 20 control subjects were included. 24-h ambulatory electrocardiographic recordings were analyzed, and digitized data was partitioned into sections of 30-min duration. For each section, time- and frequency-domain indices, and complexity indices of heart rate variability were calculated. For CHF patients, 24-h average values of all indices were significantly decreased. The circadian rhythms of mean RR intervals were preserved and resembled the abnormal circadian rhythms of the low-frequency power. The circadian rhythms of high-frequency power and all complexity indices shown in the normal control were lost. Conclusively, the patients with CHF showed decreased RR interval complexity and loss of its circadian rhythm, in addition to decreased frequency-domain RR interval variability and its abnormal circadian rhythm.</description><identifier>ISSN: 0047-1828</identifier><identifier>EISSN: 1347-4839</identifier><identifier>DOI: 10.1253/jcj.64.39</identifier><identifier>PMID: 10651205</identifier><identifier>CODEN: JCIRA2</identifier><language>eng</language><publisher>Kyoto: The Japanese Circulation Society</publisher><subject>Adult ; Aged ; Biological and medical sciences ; Cardiology. 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Sixteen patients aged between 41 and 72 years with CHF and 20 control subjects were included. 24-h ambulatory electrocardiographic recordings were analyzed, and digitized data was partitioned into sections of 30-min duration. For each section, time- and frequency-domain indices, and complexity indices of heart rate variability were calculated. For CHF patients, 24-h average values of all indices were significantly decreased. The circadian rhythms of mean RR intervals were preserved and resembled the abnormal circadian rhythms of the low-frequency power. The circadian rhythms of high-frequency power and all complexity indices shown in the normal control were lost. Conclusively, the patients with CHF showed decreased RR interval complexity and loss of its circadian rhythm, in addition to decreased frequency-domain RR interval variability and its abnormal circadian rhythm.</description><subject>Adult</subject><subject>Aged</subject><subject>Biological and medical sciences</subject><subject>Cardiology. Vascular system</subject><subject>Chaos</subject><subject>Circadian Rhythm - physiology</subject><subject>Congestive heart failure</subject><subject>Electrocardiography, Ambulatory</subject><subject>Entropy</subject><subject>Female</subject><subject>Heart</subject><subject>Heart Failure - physiopathology</subject><subject>Heart failure, cardiogenic pulmonary edema, cardiac enlargement</subject><subject>Heart Rate</subject><subject>Heart rate variability</subject><subject>Humans</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Probability</subject><subject>Reference Values</subject><subject>Ventricular Function, Left</subject><issn>0047-1828</issn><issn>1347-4839</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpNkEtLAzEQx4MoWh8Hv4Dk4MVDa7JJNtmLIPUJBaUoHpfZ7Gybst2WJBX77Y2sr8vMwP83rz8hp5yNeKbE5cIuRrkciWKHDLiQeiiNKHbJgLFUc5OZA3IYwoKxTEul9skBZ7niGVMDMrtB6xEC1nQ6pY9dRP8OLR2vlusWP1zcUuhqOlmFQFcNHTtvoXbQ0el8G-dL6jr6DNFhFwN9c3GeGrsZhujekT4g-EjvwLUbj8dkr4E24Ml3PiKvd7cv44fh5On-cXw9GVopVBzWrGiMzq3KTM6laSq0XBWC5bquWFVzzitT5brRRmotDRhgotKIhTBVUatMHJGLfq716WaPTbn2bgl-W3JWfplVJrPKXJaiSOxZz6431RLrf2TvTgLOvwEIFtrGQ2dd-OPSXUqzhF312CJEmOGvnt53tsWfjbwPovgV7Bx8iZ34BDCniDQ</recordid><startdate>2000</startdate><enddate>2000</enddate><creator>Kim, Sun Gil</creator><creator>Yum, Myung Kul</creator><general>The Japanese Circulation Society</general><general>Japanese Circulation Society</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></search><sort><creationdate>2000</creationdate><title>Decreased RR Interval Complexity and Loss of Circadian Rhythm in Patients With Congestive Heart Failure</title><author>Kim, Sun Gil ; Yum, Myung Kul</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c435t-d09f876c5286148fbec1593067db0bd111b8b67f7847748a8a03b7ee938b9d523</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Biological and medical sciences</topic><topic>Cardiology. Vascular system</topic><topic>Chaos</topic><topic>Circadian Rhythm - physiology</topic><topic>Congestive heart failure</topic><topic>Electrocardiography, Ambulatory</topic><topic>Entropy</topic><topic>Female</topic><topic>Heart</topic><topic>Heart Failure - physiopathology</topic><topic>Heart failure, cardiogenic pulmonary edema, cardiac enlargement</topic><topic>Heart Rate</topic><topic>Heart rate variability</topic><topic>Humans</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Probability</topic><topic>Reference Values</topic><topic>Ventricular Function, Left</topic><toplevel>online_resources</toplevel><creatorcontrib>Kim, Sun Gil</creatorcontrib><creatorcontrib>Yum, Myung Kul</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><jtitle>JAPANESE CIRCULATION JOURNAL</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Sun Gil</au><au>Yum, Myung Kul</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Decreased RR Interval Complexity and Loss of Circadian Rhythm in Patients With Congestive Heart Failure</atitle><jtitle>JAPANESE CIRCULATION JOURNAL</jtitle><addtitle>JAPANESE CIRCULATION JOURNAL</addtitle><date>2000</date><risdate>2000</risdate><volume>64</volume><issue>1</issue><spage>39</spage><epage>45</epage><pages>39-45</pages><issn>0047-1828</issn><eissn>1347-4839</eissn><coden>JCIRA2</coden><abstract>The present study investigated how the RR interval complexity and variability and their circadian rhythms alter for patients with congestive heart failure (CHF). Sixteen patients aged between 41 and 72 years with CHF and 20 control subjects were included. 24-h ambulatory electrocardiographic recordings were analyzed, and digitized data was partitioned into sections of 30-min duration. For each section, time- and frequency-domain indices, and complexity indices of heart rate variability were calculated. For CHF patients, 24-h average values of all indices were significantly decreased. The circadian rhythms of mean RR intervals were preserved and resembled the abnormal circadian rhythms of the low-frequency power. The circadian rhythms of high-frequency power and all complexity indices shown in the normal control were lost. Conclusively, the patients with CHF showed decreased RR interval complexity and loss of its circadian rhythm, in addition to decreased frequency-domain RR interval variability and its abnormal circadian rhythm.</abstract><cop>Kyoto</cop><pub>The Japanese Circulation Society</pub><pmid>10651205</pmid><doi>10.1253/jcj.64.39</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adult Aged Biological and medical sciences Cardiology. Vascular system Chaos Circadian Rhythm - physiology Congestive heart failure Electrocardiography, Ambulatory Entropy Female Heart Heart Failure - physiopathology Heart failure, cardiogenic pulmonary edema, cardiac enlargement Heart Rate Heart rate variability Humans Male Medical sciences Middle Aged Probability Reference Values Ventricular Function, Left |
| title | Decreased RR Interval Complexity and Loss of Circadian Rhythm in Patients With Congestive Heart Failure |
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