Phenylephrine but not Ephedrine Reduces Frontal Lobe Oxygenation Following Anesthesia-Induced Hypotension

Background Vasopressor agents are used to correct anesthesia-induced hypotension. We describe the effect of phenylephrine and ephedrine on frontal lobe oxygenation (S c O 2 ) following anesthesia-induced hypotension. Methods Following induction of anesthesia by fentanyl (0.15 mg kg −1 ) and propofol...

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Veröffentlicht in:Neurocritical care 2010-02, Vol.12 (1), p.17-23
Hauptverfasser: Nissen, Peter, Brassard, Patrice, Jørgensen, Thomas B., Secher, Niels H.
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Secher, Niels H.
description Background Vasopressor agents are used to correct anesthesia-induced hypotension. We describe the effect of phenylephrine and ephedrine on frontal lobe oxygenation (S c O 2 ) following anesthesia-induced hypotension. Methods Following induction of anesthesia by fentanyl (0.15 mg kg −1 ) and propofol (2.0 mg kg −1 ), 13 patients received phenylephrine (0.1 mg iv) and 12 patients received ephedrine (10 mg iv) to restore mean arterial pressure (MAP). Heart rate (HR), MAP, stroke volume (SV), cardiac output (CO), and frontal lobe oxygenation (S c O 2 ) were registered. Results Induction of anesthesia was followed by a decrease in MAP, HR, SV, and CO concomitant with an elevation in S c O 2 . After administration of phenylephrine, MAP increased (51 ± 12 to 81 ± 13 mmHg; P   <  0.001; mean ± SD). However, a 14% (from 70 ± 8% to 60 ± 7%) reduction in S c O 2 ( P   <  0.05) followed with no change in CO (3.7 ± 1.1 to 3.4 ± 0.9 l min −1 ). The administration of ephedrine led to a similar increase in MAP (53 ± 9 to 79 ± 8 mmHg; P   <  0.001), restored CO (3.2 ± 1.2 to 5.0 ± 1.3 l min −1 ), and preserved S c O 2 . Conclusions The utilization of phenylephrine to correct hypotension induced by anesthesia has a negative impact on S c O 2 while ephedrine maintains frontal lobe oxygenation potentially related to an increase in CO.
doi_str_mv 10.1007/s12028-009-9313-x
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We describe the effect of phenylephrine and ephedrine on frontal lobe oxygenation (S c O 2 ) following anesthesia-induced hypotension. Methods Following induction of anesthesia by fentanyl (0.15 mg kg −1 ) and propofol (2.0 mg kg −1 ), 13 patients received phenylephrine (0.1 mg iv) and 12 patients received ephedrine (10 mg iv) to restore mean arterial pressure (MAP). Heart rate (HR), MAP, stroke volume (SV), cardiac output (CO), and frontal lobe oxygenation (S c O 2 ) were registered. Results Induction of anesthesia was followed by a decrease in MAP, HR, SV, and CO concomitant with an elevation in S c O 2 . After administration of phenylephrine, MAP increased (51 ± 12 to 81 ± 13 mmHg; P   &lt;  0.001; mean ± SD). However, a 14% (from 70 ± 8% to 60 ± 7%) reduction in S c O 2 ( P   &lt;  0.05) followed with no change in CO (3.7 ± 1.1 to 3.4 ± 0.9 l min −1 ). The administration of ephedrine led to a similar increase in MAP (53 ± 9 to 79 ± 8 mmHg; P   &lt;  0.001), restored CO (3.2 ± 1.2 to 5.0 ± 1.3 l min −1 ), and preserved S c O 2 . Conclusions The utilization of phenylephrine to correct hypotension induced by anesthesia has a negative impact on S c O 2 while ephedrine maintains frontal lobe oxygenation potentially related to an increase in CO.</description><identifier>ISSN: 1541-6933</identifier><identifier>EISSN: 1556-0961</identifier><identifier>DOI: 10.1007/s12028-009-9313-x</identifier><identifier>PMID: 19957053</identifier><language>eng</language><publisher>New York: Humana Press Inc</publisher><subject>Adult ; Aged ; Anesthesia, General ; Blood ; Critical Care Medicine ; Ephedrine - administration &amp; dosage ; Ephedrine - adverse effects ; Female ; Fentanyl ; Flow velocity ; Frontal Lobe - blood supply ; Frontal Lobe - drug effects ; Hemodynamics ; Hemodynamics - drug effects ; Hemoglobin ; Humans ; Hypotension ; Hypotension - chemically induced ; Hypotension - drug therapy ; Intensive ; Internal Medicine ; Intraoperative Complications - chemically induced ; Intraoperative Complications - drug therapy ; Liver transplants ; Mastectomy ; Medicine ; Medicine &amp; Public Health ; Middle Aged ; Monitoring, Intraoperative ; Neurology ; Original Article ; Oxygen Consumption - drug effects ; Oxygen saturation ; Parathyroidectomy ; Patients ; Phenylephrine - administration &amp; dosage ; Phenylephrine - adverse effects ; Propofol ; Regional Blood Flow - drug effects ; Software ; Spectrum analysis ; Thyroidectomy ; Variance analysis ; Vasoconstrictor Agents - adverse effects ; Vasoconstrictor Agents - therapeutic use ; Ventilators</subject><ispartof>Neurocritical care, 2010-02, Vol.12 (1), p.17-23</ispartof><rights>Springer Science+Business Media, LLC 2009</rights><rights>Springer Science+Business Media, LLC 2009.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c403t-ea49a511fe2014763a52fcabc4f285e94b01a4a0c8c1770d23e79a0301eed4c03</citedby><cites>FETCH-LOGICAL-c403t-ea49a511fe2014763a52fcabc4f285e94b01a4a0c8c1770d23e79a0301eed4c03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12028-009-9313-x$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2919332512?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,777,781,21369,21370,27905,27906,33511,33512,33725,33726,41469,42538,43640,43786,51300,64364,64366,64368,72218</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19957053$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Nissen, Peter</creatorcontrib><creatorcontrib>Brassard, Patrice</creatorcontrib><creatorcontrib>Jørgensen, Thomas B.</creatorcontrib><creatorcontrib>Secher, Niels H.</creatorcontrib><title>Phenylephrine but not Ephedrine Reduces Frontal Lobe Oxygenation Following Anesthesia-Induced Hypotension</title><title>Neurocritical care</title><addtitle>Neurocrit Care</addtitle><addtitle>Neurocrit Care</addtitle><description>Background Vasopressor agents are used to correct anesthesia-induced hypotension. We describe the effect of phenylephrine and ephedrine on frontal lobe oxygenation (S c O 2 ) following anesthesia-induced hypotension. Methods Following induction of anesthesia by fentanyl (0.15 mg kg −1 ) and propofol (2.0 mg kg −1 ), 13 patients received phenylephrine (0.1 mg iv) and 12 patients received ephedrine (10 mg iv) to restore mean arterial pressure (MAP). Heart rate (HR), MAP, stroke volume (SV), cardiac output (CO), and frontal lobe oxygenation (S c O 2 ) were registered. Results Induction of anesthesia was followed by a decrease in MAP, HR, SV, and CO concomitant with an elevation in S c O 2 . After administration of phenylephrine, MAP increased (51 ± 12 to 81 ± 13 mmHg; P   &lt;  0.001; mean ± SD). However, a 14% (from 70 ± 8% to 60 ± 7%) reduction in S c O 2 ( P   &lt;  0.05) followed with no change in CO (3.7 ± 1.1 to 3.4 ± 0.9 l min −1 ). The administration of ephedrine led to a similar increase in MAP (53 ± 9 to 79 ± 8 mmHg; P   &lt;  0.001), restored CO (3.2 ± 1.2 to 5.0 ± 1.3 l min −1 ), and preserved S c O 2 . Conclusions The utilization of phenylephrine to correct hypotension induced by anesthesia has a negative impact on S c O 2 while ephedrine maintains frontal lobe oxygenation potentially related to an increase in CO.</description><subject>Adult</subject><subject>Aged</subject><subject>Anesthesia, General</subject><subject>Blood</subject><subject>Critical Care Medicine</subject><subject>Ephedrine - administration &amp; dosage</subject><subject>Ephedrine - adverse effects</subject><subject>Female</subject><subject>Fentanyl</subject><subject>Flow velocity</subject><subject>Frontal Lobe - blood supply</subject><subject>Frontal Lobe - drug effects</subject><subject>Hemodynamics</subject><subject>Hemodynamics - drug effects</subject><subject>Hemoglobin</subject><subject>Humans</subject><subject>Hypotension</subject><subject>Hypotension - chemically induced</subject><subject>Hypotension - drug therapy</subject><subject>Intensive</subject><subject>Internal Medicine</subject><subject>Intraoperative Complications - chemically induced</subject><subject>Intraoperative Complications - drug therapy</subject><subject>Liver transplants</subject><subject>Mastectomy</subject><subject>Medicine</subject><subject>Medicine &amp; 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Brassard, Patrice ; Jørgensen, Thomas B. ; Secher, Niels H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c403t-ea49a511fe2014763a52fcabc4f285e94b01a4a0c8c1770d23e79a0301eed4c03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Anesthesia, General</topic><topic>Blood</topic><topic>Critical Care Medicine</topic><topic>Ephedrine - administration &amp; dosage</topic><topic>Ephedrine - adverse effects</topic><topic>Female</topic><topic>Fentanyl</topic><topic>Flow velocity</topic><topic>Frontal Lobe - blood supply</topic><topic>Frontal Lobe - drug effects</topic><topic>Hemodynamics</topic><topic>Hemodynamics - drug effects</topic><topic>Hemoglobin</topic><topic>Humans</topic><topic>Hypotension</topic><topic>Hypotension - chemically induced</topic><topic>Hypotension - drug therapy</topic><topic>Intensive</topic><topic>Internal Medicine</topic><topic>Intraoperative Complications - chemically induced</topic><topic>Intraoperative Complications - drug therapy</topic><topic>Liver transplants</topic><topic>Mastectomy</topic><topic>Medicine</topic><topic>Medicine &amp; Public Health</topic><topic>Middle Aged</topic><topic>Monitoring, Intraoperative</topic><topic>Neurology</topic><topic>Original Article</topic><topic>Oxygen Consumption - drug effects</topic><topic>Oxygen saturation</topic><topic>Parathyroidectomy</topic><topic>Patients</topic><topic>Phenylephrine - administration &amp; dosage</topic><topic>Phenylephrine - adverse effects</topic><topic>Propofol</topic><topic>Regional Blood Flow - drug effects</topic><topic>Software</topic><topic>Spectrum analysis</topic><topic>Thyroidectomy</topic><topic>Variance analysis</topic><topic>Vasoconstrictor Agents - adverse effects</topic><topic>Vasoconstrictor Agents - therapeutic use</topic><topic>Ventilators</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nissen, Peter</creatorcontrib><creatorcontrib>Brassard, Patrice</creatorcontrib><creatorcontrib>Jørgensen, Thomas B.</creatorcontrib><creatorcontrib>Secher, Niels H.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Neurosciences Abstracts</collection><jtitle>Neurocritical care</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nissen, Peter</au><au>Brassard, Patrice</au><au>Jørgensen, Thomas B.</au><au>Secher, Niels H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Phenylephrine but not Ephedrine Reduces Frontal Lobe Oxygenation Following Anesthesia-Induced Hypotension</atitle><jtitle>Neurocritical care</jtitle><stitle>Neurocrit Care</stitle><addtitle>Neurocrit Care</addtitle><date>2010-02-01</date><risdate>2010</risdate><volume>12</volume><issue>1</issue><spage>17</spage><epage>23</epage><pages>17-23</pages><issn>1541-6933</issn><eissn>1556-0961</eissn><abstract>Background Vasopressor agents are used to correct anesthesia-induced hypotension. We describe the effect of phenylephrine and ephedrine on frontal lobe oxygenation (S c O 2 ) following anesthesia-induced hypotension. Methods Following induction of anesthesia by fentanyl (0.15 mg kg −1 ) and propofol (2.0 mg kg −1 ), 13 patients received phenylephrine (0.1 mg iv) and 12 patients received ephedrine (10 mg iv) to restore mean arterial pressure (MAP). Heart rate (HR), MAP, stroke volume (SV), cardiac output (CO), and frontal lobe oxygenation (S c O 2 ) were registered. Results Induction of anesthesia was followed by a decrease in MAP, HR, SV, and CO concomitant with an elevation in S c O 2 . After administration of phenylephrine, MAP increased (51 ± 12 to 81 ± 13 mmHg; P   &lt;  0.001; mean ± SD). However, a 14% (from 70 ± 8% to 60 ± 7%) reduction in S c O 2 ( P   &lt;  0.05) followed with no change in CO (3.7 ± 1.1 to 3.4 ± 0.9 l min −1 ). The administration of ephedrine led to a similar increase in MAP (53 ± 9 to 79 ± 8 mmHg; P   &lt;  0.001), restored CO (3.2 ± 1.2 to 5.0 ± 1.3 l min −1 ), and preserved S c O 2 . Conclusions The utilization of phenylephrine to correct hypotension induced by anesthesia has a negative impact on S c O 2 while ephedrine maintains frontal lobe oxygenation potentially related to an increase in CO.</abstract><cop>New York</cop><pub>Humana Press Inc</pub><pmid>19957053</pmid><doi>10.1007/s12028-009-9313-x</doi><tpages>7</tpages></addata></record>
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subjects Adult
Aged
Anesthesia, General
Blood
Critical Care Medicine
Ephedrine - administration & dosage
Ephedrine - adverse effects
Female
Fentanyl
Flow velocity
Frontal Lobe - blood supply
Frontal Lobe - drug effects
Hemodynamics
Hemodynamics - drug effects
Hemoglobin
Humans
Hypotension
Hypotension - chemically induced
Hypotension - drug therapy
Intensive
Internal Medicine
Intraoperative Complications - chemically induced
Intraoperative Complications - drug therapy
Liver transplants
Mastectomy
Medicine
Medicine & Public Health
Middle Aged
Monitoring, Intraoperative
Neurology
Original Article
Oxygen Consumption - drug effects
Oxygen saturation
Parathyroidectomy
Patients
Phenylephrine - administration & dosage
Phenylephrine - adverse effects
Propofol
Regional Blood Flow - drug effects
Software
Spectrum analysis
Thyroidectomy
Variance analysis
Vasoconstrictor Agents - adverse effects
Vasoconstrictor Agents - therapeutic use
Ventilators
title Phenylephrine but not Ephedrine Reduces Frontal Lobe Oxygenation Following Anesthesia-Induced Hypotension
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