Heart rate variability changes during pregnancy: an observational study
Background Autonomic nervous systemic imbalance, as reflected by altered heart rate variability, is associated with adverse clinical sequelae. Before heart rate variability can predict adverse responses to interventions at delivery, changes compared to the non-pregnant state should be explored. Meth...
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Veröffentlicht in: | International journal of obstetric anesthesia 2007-04, Vol.16 (2), p.106-109 |
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creator | Chamchad, D Horrow, J.C Nakhamchik, L Arkoosh, V.A |
description | Background Autonomic nervous systemic imbalance, as reflected by altered heart rate variability, is associated with adverse clinical sequelae. Before heart rate variability can predict adverse responses to interventions at delivery, changes compared to the non-pregnant state should be explored. Methods Twenty-four normal healthy volunteer women and 22 pregnant women at term immediately before cesarean section, underwent various analyses of heart rate variability following a standard sampling. Calculations included time domain, frequency domain and non-linear measures. To make 14 comparisons between pregnant and volunteer subjects, a significance level of 0.00357 was taken. Results Compared to volunteers, pregnant patients had higher heart rates and blood pressures, and decreases in some time domain heart rate variability parameters. Frequency domain heart rate variability parameters remained unaffected by pregnancy. Non-linear analysis results all decreased numerically, but failed to achieve statistical significance. Conclusions Future investigations seeking associations of heart rate variability parameters with clinical events in pregnant women at term should consider time domain and non-linear analyses. |
doi_str_mv | 10.1016/j.ijoa.2006.08.008 |
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Before heart rate variability can predict adverse responses to interventions at delivery, changes compared to the non-pregnant state should be explored. Methods Twenty-four normal healthy volunteer women and 22 pregnant women at term immediately before cesarean section, underwent various analyses of heart rate variability following a standard sampling. Calculations included time domain, frequency domain and non-linear measures. To make 14 comparisons between pregnant and volunteer subjects, a significance level of 0.00357 was taken. Results Compared to volunteers, pregnant patients had higher heart rates and blood pressures, and decreases in some time domain heart rate variability parameters. Frequency domain heart rate variability parameters remained unaffected by pregnancy. Non-linear analysis results all decreased numerically, but failed to achieve statistical significance. Conclusions Future investigations seeking associations of heart rate variability parameters with clinical events in pregnant women at term should consider time domain and non-linear analyses.</description><identifier>ISSN: 0959-289X</identifier><identifier>EISSN: 1532-3374</identifier><identifier>DOI: 10.1016/j.ijoa.2006.08.008</identifier><identifier>PMID: 17270423</identifier><language>eng</language><publisher>Netherlands: Elsevier Ltd</publisher><subject>Adult ; Anesthesia & Perioperative Care ; Blood pressure ; Blood Pressure - physiology ; Electrocardiography - methods ; Female ; Fourier Analysis ; Healthy volunteers ; Heart Rate - physiology ; Heart rate: variability ; Humans ; Middle Aged ; Monitoring, Physiologic - methods ; Obstetrics and Gynecology ; Pregnancy ; Pregnancy - physiology ; Reference Values</subject><ispartof>International journal of obstetric anesthesia, 2007-04, Vol.16 (2), p.106-109</ispartof><rights>Elsevier Ltd</rights><rights>2006 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c409t-64ffa51168016b05de637b12cb9788f7a1d1de6a90b23536879fa61ab6ab71643</citedby><cites>FETCH-LOGICAL-c409t-64ffa51168016b05de637b12cb9788f7a1d1de6a90b23536879fa61ab6ab71643</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ijoa.2006.08.008$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,782,786,3554,27933,27934,46004</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17270423$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Chamchad, D</creatorcontrib><creatorcontrib>Horrow, J.C</creatorcontrib><creatorcontrib>Nakhamchik, L</creatorcontrib><creatorcontrib>Arkoosh, V.A</creatorcontrib><title>Heart rate variability changes during pregnancy: an observational study</title><title>International journal of obstetric anesthesia</title><addtitle>Int J Obstet Anesth</addtitle><description>Background Autonomic nervous systemic imbalance, as reflected by altered heart rate variability, is associated with adverse clinical sequelae. Before heart rate variability can predict adverse responses to interventions at delivery, changes compared to the non-pregnant state should be explored. Methods Twenty-four normal healthy volunteer women and 22 pregnant women at term immediately before cesarean section, underwent various analyses of heart rate variability following a standard sampling. Calculations included time domain, frequency domain and non-linear measures. To make 14 comparisons between pregnant and volunteer subjects, a significance level of 0.00357 was taken. Results Compared to volunteers, pregnant patients had higher heart rates and blood pressures, and decreases in some time domain heart rate variability parameters. Frequency domain heart rate variability parameters remained unaffected by pregnancy. Non-linear analysis results all decreased numerically, but failed to achieve statistical significance. Conclusions Future investigations seeking associations of heart rate variability parameters with clinical events in pregnant women at term should consider time domain and non-linear analyses.</description><subject>Adult</subject><subject>Anesthesia & Perioperative Care</subject><subject>Blood pressure</subject><subject>Blood Pressure - physiology</subject><subject>Electrocardiography - methods</subject><subject>Female</subject><subject>Fourier Analysis</subject><subject>Healthy volunteers</subject><subject>Heart Rate - physiology</subject><subject>Heart rate: variability</subject><subject>Humans</subject><subject>Middle Aged</subject><subject>Monitoring, Physiologic - methods</subject><subject>Obstetrics and Gynecology</subject><subject>Pregnancy</subject><subject>Pregnancy - physiology</subject><subject>Reference Values</subject><issn>0959-289X</issn><issn>1532-3374</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kUGL1TAUhYMoznP0D7iQrty1c5O0SSoiyKAzwoALFdyFm_T2mdrXPpP2Qf-9Le-BMAtXFy7nHDjfYew1h4IDVzddEboRCwGgCjAFgHnCdrySIpdSl0_ZDuqqzoWpf16xFyl1AFBLo56zK66FhlLIHbu7J4xTFnGi7IQxoAt9mJbM_8JhTylr5hiGfXaMtB9w8Mu7DIdsdIniCacwDthnaZqb5SV71mKf6NXlXrMfnz99v73PH77efbn9-JD7EuopV2XbYsW5MmsBB1VDSmrHhXe1NqbVyBu-_rAGJ2QlldF1i4qjU-g0V6W8Zm_Pucc4_pkpTfYQkqe-x4HGOVkNQtelqVahOAt9HFOK1NpjDAeMi-VgN3y2sxs-u-GzYOyKbzW9uaTP7kDNP8uF1yp4fxbQ2vEUKNrkAw2emhDJT7YZw__zPzyy-z4MwWP_mxZK3TjHlWiy3CZhwX7bBtz2AwWwDsvlX2RilgA</recordid><startdate>20070401</startdate><enddate>20070401</enddate><creator>Chamchad, D</creator><creator>Horrow, J.C</creator><creator>Nakhamchik, L</creator><creator>Arkoosh, V.A</creator><general>Elsevier Ltd</general><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>20070401</creationdate><title>Heart rate variability changes during pregnancy: an observational study</title><author>Chamchad, D ; Horrow, J.C ; Nakhamchik, L ; Arkoosh, V.A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c409t-64ffa51168016b05de637b12cb9788f7a1d1de6a90b23536879fa61ab6ab71643</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Adult</topic><topic>Anesthesia & Perioperative Care</topic><topic>Blood pressure</topic><topic>Blood Pressure - physiology</topic><topic>Electrocardiography - methods</topic><topic>Female</topic><topic>Fourier Analysis</topic><topic>Healthy volunteers</topic><topic>Heart Rate - physiology</topic><topic>Heart rate: variability</topic><topic>Humans</topic><topic>Middle Aged</topic><topic>Monitoring, Physiologic - methods</topic><topic>Obstetrics and Gynecology</topic><topic>Pregnancy</topic><topic>Pregnancy - physiology</topic><topic>Reference Values</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chamchad, D</creatorcontrib><creatorcontrib>Horrow, J.C</creatorcontrib><creatorcontrib>Nakhamchik, L</creatorcontrib><creatorcontrib>Arkoosh, V.A</creatorcontrib><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>International journal of obstetric anesthesia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chamchad, D</au><au>Horrow, J.C</au><au>Nakhamchik, L</au><au>Arkoosh, V.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Heart rate variability changes during pregnancy: an observational study</atitle><jtitle>International journal of obstetric anesthesia</jtitle><addtitle>Int J Obstet Anesth</addtitle><date>2007-04-01</date><risdate>2007</risdate><volume>16</volume><issue>2</issue><spage>106</spage><epage>109</epage><pages>106-109</pages><issn>0959-289X</issn><eissn>1532-3374</eissn><abstract>Background Autonomic nervous systemic imbalance, as reflected by altered heart rate variability, is associated with adverse clinical sequelae. Before heart rate variability can predict adverse responses to interventions at delivery, changes compared to the non-pregnant state should be explored. Methods Twenty-four normal healthy volunteer women and 22 pregnant women at term immediately before cesarean section, underwent various analyses of heart rate variability following a standard sampling. Calculations included time domain, frequency domain and non-linear measures. To make 14 comparisons between pregnant and volunteer subjects, a significance level of 0.00357 was taken. Results Compared to volunteers, pregnant patients had higher heart rates and blood pressures, and decreases in some time domain heart rate variability parameters. Frequency domain heart rate variability parameters remained unaffected by pregnancy. Non-linear analysis results all decreased numerically, but failed to achieve statistical significance. Conclusions Future investigations seeking associations of heart rate variability parameters with clinical events in pregnant women at term should consider time domain and non-linear analyses.</abstract><cop>Netherlands</cop><pub>Elsevier Ltd</pub><pmid>17270423</pmid><doi>10.1016/j.ijoa.2006.08.008</doi><tpages>4</tpages></addata></record> |
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subjects | Adult Anesthesia & Perioperative Care Blood pressure Blood Pressure - physiology Electrocardiography - methods Female Fourier Analysis Healthy volunteers Heart Rate - physiology Heart rate: variability Humans Middle Aged Monitoring, Physiologic - methods Obstetrics and Gynecology Pregnancy Pregnancy - physiology Reference Values |
title | Heart rate variability changes during pregnancy: an observational study |
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