Effect of positioning from supine and left lateral positions to left lateral tilt on maternal blood flow velocities and waveforms in full‐term parturients
Summary Positioning the parturient from supine to the left lateral tilt position (supine‐to‐tilt) may not effectively displace the gravid uterus, but turning from the left lateral position to the left lateral tilt position (left lateral‐to‐tilt) may keep the gravid uterus displaced and prevent aorto...
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| Veröffentlicht in: | Anaesthesia 2012-08, Vol.67 (8), p.889-893 |
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| creator | Kundra, P. Velraj, J. Amirthalingam, U. Habeebullah, S. Yuvaraj, K. Elangovan, S. Venkatesan, V. |
| description | Summary
Positioning the parturient from supine to the left lateral tilt position (supine‐to‐tilt) may not effectively displace the gravid uterus, but turning from the left lateral position to the left lateral tilt position (left lateral‐to‐tilt) may keep the gravid uterus displaced and prevent aortocaval compression. Fifty‐one full‐term parturients were randomly placed in the left lateral position, supine‐to‐tilt and left lateral‐to‐tilt positions using a Crawford wedge. Femoral vein area, femoral vein velocity, femoral artery area, pulsatility index, resistance index and right arm mean arterial blood pressure and heart rate were recorded. Our results showed a lower mean (SD) femoral vein area (82.2 (14.9) vs 96.2 (16.4) mm2), a lower pulsatility index (3.83 (1.3) vs 5.8 (2.2)), a lower resistance index (0.93 (0.06) vs 0.98 (0.57)), a higher femoral artery area (33.3 (3.8) vs 30.9 (4.4) mm2) and a higher femoral vein velocity (7.9 (1.2) vs 6.1 (1.6) cm.s−1) with left lateral‐to‐tilt when compared with supine‐to‐tilt (all p < 0.001). Our results suggest that moving a full‐term parturient from the full left lateral to the lateral tilt position may prevent aortocaval compression in full‐term parturients more efficiently than when positioning the parturient from a supine to left lateral tilt position. |
| doi_str_mv | 10.1111/j.1365-2044.2012.07164.x |
| format | Article |
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Positioning the parturient from supine to the left lateral tilt position (supine‐to‐tilt) may not effectively displace the gravid uterus, but turning from the left lateral position to the left lateral tilt position (left lateral‐to‐tilt) may keep the gravid uterus displaced and prevent aortocaval compression. Fifty‐one full‐term parturients were randomly placed in the left lateral position, supine‐to‐tilt and left lateral‐to‐tilt positions using a Crawford wedge. Femoral vein area, femoral vein velocity, femoral artery area, pulsatility index, resistance index and right arm mean arterial blood pressure and heart rate were recorded. Our results showed a lower mean (SD) femoral vein area (82.2 (14.9) vs 96.2 (16.4) mm2), a lower pulsatility index (3.83 (1.3) vs 5.8 (2.2)), a lower resistance index (0.93 (0.06) vs 0.98 (0.57)), a higher femoral artery area (33.3 (3.8) vs 30.9 (4.4) mm2) and a higher femoral vein velocity (7.9 (1.2) vs 6.1 (1.6) cm.s−1) with left lateral‐to‐tilt when compared with supine‐to‐tilt (all p < 0.001). Our results suggest that moving a full‐term parturient from the full left lateral to the lateral tilt position may prevent aortocaval compression in full‐term parturients more efficiently than when positioning the parturient from a supine to left lateral tilt position.</description><identifier>ISSN: 0003-2409</identifier><identifier>EISSN: 1365-2044</identifier><identifier>DOI: 10.1111/j.1365-2044.2012.07164.x</identifier><identifier>PMID: 22646056</identifier><identifier>CODEN: ANASAB</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Adult ; Anesthesia ; Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy ; Biological and medical sciences ; Blood Flow Velocity ; Childbirth & labor ; Circulatory system ; Female ; Humans ; Medical sciences ; Parturition ; Patient Positioning ; Pregnancy - physiology ; Supine Position ; Vascular Resistance</subject><ispartof>Anaesthesia, 2012-08, Vol.67 (8), p.889-893</ispartof><rights>Anaesthesia © 2012 The Association of Anaesthetists of Great Britain and Ireland</rights><rights>2015 INIST-CNRS</rights><rights>Anaesthesia © 2012 The Association of Anaesthetists of Great Britain and Ireland.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4784-c0f46a9efda775d3d5a5e0ab90d1dd66ccbee5c27af13b1c195f3bae70cab4e23</citedby><cites>FETCH-LOGICAL-c4784-c0f46a9efda775d3d5a5e0ab90d1dd66ccbee5c27af13b1c195f3bae70cab4e23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1365-2044.2012.07164.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1365-2044.2012.07164.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,27901,27902,45550,45551,46384,46808</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26137447$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22646056$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kundra, P.</creatorcontrib><creatorcontrib>Velraj, J.</creatorcontrib><creatorcontrib>Amirthalingam, U.</creatorcontrib><creatorcontrib>Habeebullah, S.</creatorcontrib><creatorcontrib>Yuvaraj, K.</creatorcontrib><creatorcontrib>Elangovan, S.</creatorcontrib><creatorcontrib>Venkatesan, V.</creatorcontrib><title>Effect of positioning from supine and left lateral positions to left lateral tilt on maternal blood flow velocities and waveforms in full‐term parturients</title><title>Anaesthesia</title><addtitle>Anaesthesia</addtitle><description>Summary
Positioning the parturient from supine to the left lateral tilt position (supine‐to‐tilt) may not effectively displace the gravid uterus, but turning from the left lateral position to the left lateral tilt position (left lateral‐to‐tilt) may keep the gravid uterus displaced and prevent aortocaval compression. Fifty‐one full‐term parturients were randomly placed in the left lateral position, supine‐to‐tilt and left lateral‐to‐tilt positions using a Crawford wedge. Femoral vein area, femoral vein velocity, femoral artery area, pulsatility index, resistance index and right arm mean arterial blood pressure and heart rate were recorded. Our results showed a lower mean (SD) femoral vein area (82.2 (14.9) vs 96.2 (16.4) mm2), a lower pulsatility index (3.83 (1.3) vs 5.8 (2.2)), a lower resistance index (0.93 (0.06) vs 0.98 (0.57)), a higher femoral artery area (33.3 (3.8) vs 30.9 (4.4) mm2) and a higher femoral vein velocity (7.9 (1.2) vs 6.1 (1.6) cm.s−1) with left lateral‐to‐tilt when compared with supine‐to‐tilt (all p < 0.001). Our results suggest that moving a full‐term parturient from the full left lateral to the lateral tilt position may prevent aortocaval compression in full‐term parturients more efficiently than when positioning the parturient from a supine to left lateral tilt position.</description><subject>Adult</subject><subject>Anesthesia</subject><subject>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</subject><subject>Biological and medical sciences</subject><subject>Blood Flow Velocity</subject><subject>Childbirth & labor</subject><subject>Circulatory system</subject><subject>Female</subject><subject>Humans</subject><subject>Medical sciences</subject><subject>Parturition</subject><subject>Patient Positioning</subject><subject>Pregnancy - physiology</subject><subject>Supine Position</subject><subject>Vascular Resistance</subject><issn>0003-2409</issn><issn>1365-2044</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkc1u1DAUhS0EokPhFZAlhMQmqe04fxukUTXQSlXZwNpynGvkkWMHO-m0uz4CD8DT9UnqdIZBsMIb_9zvnHutgxCmJKdpnW1zWlRlxgjnOSOU5aSmFc9vn6HVsfAcrQghRcY4aU_Qqxi3JJENbV6iE8YqXpGyWqFfG61BTdhrPPpoJuOdcd-xDn7AcR6NAyxdjy3oCVs5QZD2CEY8-b8rk7HJyuFhubv00Fnve6yt3-EbsF4lHcQnx528Ae3DELFxWM_WPtz_TKIBjzJMczDgpvgavdDSRnhz2E_Rt0-br-cX2dWXz5fn66tM8brhmSKaV7IF3cu6LvuiL2UJRHYt6WnfV5VSHUCpWC01LTqqaFvqopNQEyU7Dqw4RR_2vmPwP2aIkxhMVGCtdODnKChhfOnUkoS--wfd-nn56p6ijJW8SVSzp1TwMQbQYgxmkOEuQWJJUGzFEpRYghJLguIpQXGbpG8PDeZugP4o_B1ZAt4fABmVtDpIp0z8w1W0qNO0ifu453bGwt1_DyDW1-vNciweAYVJvAk</recordid><startdate>201208</startdate><enddate>201208</enddate><creator>Kundra, P.</creator><creator>Velraj, J.</creator><creator>Amirthalingam, U.</creator><creator>Habeebullah, S.</creator><creator>Yuvaraj, K.</creator><creator>Elangovan, S.</creator><creator>Venkatesan, V.</creator><general>Blackwell Publishing Ltd</general><general>Wiley-Blackwell</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>7T5</scope><scope>7U7</scope><scope>C1K</scope><scope>H94</scope><scope>K9.</scope><scope>7X8</scope></search><sort><creationdate>201208</creationdate><title>Effect of positioning from supine and left lateral positions to left lateral tilt on maternal blood flow velocities and waveforms in full‐term parturients</title><author>Kundra, P. ; Velraj, J. ; Amirthalingam, U. ; Habeebullah, S. ; Yuvaraj, K. ; Elangovan, S. ; Venkatesan, V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4784-c0f46a9efda775d3d5a5e0ab90d1dd66ccbee5c27af13b1c195f3bae70cab4e23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adult</topic><topic>Anesthesia</topic><topic>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</topic><topic>Biological and medical sciences</topic><topic>Blood Flow Velocity</topic><topic>Childbirth & labor</topic><topic>Circulatory system</topic><topic>Female</topic><topic>Humans</topic><topic>Medical sciences</topic><topic>Parturition</topic><topic>Patient Positioning</topic><topic>Pregnancy - physiology</topic><topic>Supine Position</topic><topic>Vascular Resistance</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kundra, P.</creatorcontrib><creatorcontrib>Velraj, J.</creatorcontrib><creatorcontrib>Amirthalingam, U.</creatorcontrib><creatorcontrib>Habeebullah, S.</creatorcontrib><creatorcontrib>Yuvaraj, K.</creatorcontrib><creatorcontrib>Elangovan, S.</creatorcontrib><creatorcontrib>Venkatesan, V.</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>Immunology Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Anaesthesia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kundra, P.</au><au>Velraj, J.</au><au>Amirthalingam, U.</au><au>Habeebullah, S.</au><au>Yuvaraj, K.</au><au>Elangovan, S.</au><au>Venkatesan, V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of positioning from supine and left lateral positions to left lateral tilt on maternal blood flow velocities and waveforms in full‐term parturients</atitle><jtitle>Anaesthesia</jtitle><addtitle>Anaesthesia</addtitle><date>2012-08</date><risdate>2012</risdate><volume>67</volume><issue>8</issue><spage>889</spage><epage>893</epage><pages>889-893</pages><issn>0003-2409</issn><eissn>1365-2044</eissn><coden>ANASAB</coden><abstract>Summary
Positioning the parturient from supine to the left lateral tilt position (supine‐to‐tilt) may not effectively displace the gravid uterus, but turning from the left lateral position to the left lateral tilt position (left lateral‐to‐tilt) may keep the gravid uterus displaced and prevent aortocaval compression. Fifty‐one full‐term parturients were randomly placed in the left lateral position, supine‐to‐tilt and left lateral‐to‐tilt positions using a Crawford wedge. Femoral vein area, femoral vein velocity, femoral artery area, pulsatility index, resistance index and right arm mean arterial blood pressure and heart rate were recorded. Our results showed a lower mean (SD) femoral vein area (82.2 (14.9) vs 96.2 (16.4) mm2), a lower pulsatility index (3.83 (1.3) vs 5.8 (2.2)), a lower resistance index (0.93 (0.06) vs 0.98 (0.57)), a higher femoral artery area (33.3 (3.8) vs 30.9 (4.4) mm2) and a higher femoral vein velocity (7.9 (1.2) vs 6.1 (1.6) cm.s−1) with left lateral‐to‐tilt when compared with supine‐to‐tilt (all p < 0.001). Our results suggest that moving a full‐term parturient from the full left lateral to the lateral tilt position may prevent aortocaval compression in full‐term parturients more efficiently than when positioning the parturient from a supine to left lateral tilt position.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>22646056</pmid><doi>10.1111/j.1365-2044.2012.07164.x</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Adult Anesthesia Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy Biological and medical sciences Blood Flow Velocity Childbirth & labor Circulatory system Female Humans Medical sciences Parturition Patient Positioning Pregnancy - physiology Supine Position Vascular Resistance |
| title | Effect of positioning from supine and left lateral positions to left lateral tilt on maternal blood flow velocities and waveforms in full‐term parturients |
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