Comparison of regional pulmonary perfusion in lobar pneumonia during high frequency and conventional mechanical ventilation in sheep
We compared the effects of high frequency jet ventilation (HFV), conventional ventilation (CMV), and spontaneous breathing (SB) on regional pulmonary blood flows (QLLL), standard cardiopulmonary measurements and the serum levels of the first generation metabolites of prostacyclin (6-keto-PGF1 alpha)...
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| Veröffentlicht in: | Canadian journal of anesthesia 1987-05, Vol.34 (3), p.252-258 |
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| container_title | Canadian journal of anesthesia |
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| creator | GIROTTI, M. J HONG, K DEMAJO, W. C TODD, T. R. J |
| description | We compared the effects of high frequency jet ventilation (HFV), conventional ventilation (CMV), and spontaneous breathing (SB) on regional pulmonary blood flows (QLLL), standard cardiopulmonary measurements and the serum levels of the first generation metabolites of prostacyclin (6-keto-PGF1 alpha) and thromboxane A2 (TxB2) in established left lower lobe pseudomonas aeruginosa pneumonia in 11 sheep. Gram negative pneumonia resulted in significant increases in alveolar-arterial oxygen gradients [(A-a)DO2] and pulmonary shunt fractions (Qs/Qt), as well as a significant decrease in QLLL during SB. Significant differences in standard haemodynamics, (A-a)DO2, Qs/Qt, and QLLL were not observed when HFV was compared to CMV. However, serum levels of 6-keto-PGF1 alpha were elevated when the animals underwent HFV. We conclude that HFV is a safe and efficient method of oxygenation and ventilation in unilobar gram negative pneumonia and also results in a significant increase in the serum levels of 6-keto-PGF1 alpha when compared to CMV in sheep. The exact significance of the latter finding is the subject of current investigation. |
| doi_str_mv | 10.1007/BF03015162 |
| format | Article |
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We conclude that HFV is a safe and efficient method of oxygenation and ventilation in unilobar gram negative pneumonia and also results in a significant increase in the serum levels of 6-keto-PGF1 alpha when compared to CMV in sheep. The exact significance of the latter finding is the subject of current investigation.</description><identifier>ISSN: 0832-610X</identifier><identifier>EISSN: 1496-8975</identifier><identifier>DOI: 10.1007/BF03015162</identifier><identifier>PMID: 3581395</identifier><identifier>CODEN: CJOAEP</identifier><language>eng</language><publisher>Toronto, ON: Canadian Anesthesiologists' Society</publisher><subject>6-Ketoprostaglandin F1 alpha - blood ; Anesthesia. Intensive care medicine. Transfusions. 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J</creatorcontrib><creatorcontrib>HONG, K</creatorcontrib><creatorcontrib>DEMAJO, W. C</creatorcontrib><creatorcontrib>TODD, T. R. J</creatorcontrib><title>Comparison of regional pulmonary perfusion in lobar pneumonia during high frequency and conventional mechanical ventilation in sheep</title><title>Canadian journal of anesthesia</title><addtitle>Can J Anaesth</addtitle><description>We compared the effects of high frequency jet ventilation (HFV), conventional ventilation (CMV), and spontaneous breathing (SB) on regional pulmonary blood flows (QLLL), standard cardiopulmonary measurements and the serum levels of the first generation metabolites of prostacyclin (6-keto-PGF1 alpha) and thromboxane A2 (TxB2) in established left lower lobe pseudomonas aeruginosa pneumonia in 11 sheep. Gram negative pneumonia resulted in significant increases in alveolar-arterial oxygen gradients [(A-a)DO2] and pulmonary shunt fractions (Qs/Qt), as well as a significant decrease in QLLL during SB. Significant differences in standard haemodynamics, (A-a)DO2, Qs/Qt, and QLLL were not observed when HFV was compared to CMV. However, serum levels of 6-keto-PGF1 alpha were elevated when the animals underwent HFV. We conclude that HFV is a safe and efficient method of oxygenation and ventilation in unilobar gram negative pneumonia and also results in a significant increase in the serum levels of 6-keto-PGF1 alpha when compared to CMV in sheep. The exact significance of the latter finding is the subject of current investigation.</description><subject>6-Ketoprostaglandin F1 alpha - blood</subject><subject>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Cardiac Output</subject><subject>Emergency and intensive respiratory care</subject><subject>Female</subject><subject>Hemodynamics</subject><subject>Intensive care medicine</subject><subject>Medical sciences</subject><subject>Pneumonia, Pneumococcal - etiology</subject><subject>Pneumonia, Pneumococcal - physiopathology</subject><subject>Pneumonia, Pneumococcal - therapy</subject><subject>Pseudomonas Infections - complications</subject><subject>Pulmonary Circulation</subject><subject>Respiration</subject><subject>Respiration, Artificial</subject><subject>Sheep</subject><subject>Thromboxane B2 - blood</subject><issn>0832-610X</issn><issn>1496-8975</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpFkUFLAzEQhYMotVYv3oUcxIOwmmya3eSoxapQ8KLgbUmzkzaym6xJV-jdH260Sz3NMO-bx_AGoXNKbigh5e39nDBCOS3yAzSmU1lkQpb8EI2JYHlWUPJ-jE5i_CCEiIKLERoxLiiTfIy-Z77tVLDRO-wNDrCy3qkGd33TpiZscQfB9DFNsXW48UsVcOegT6pVuO6DdSu8tqs1NgE-e3B6i5WrsfbuC9xm59aCXitndWr_ho3aDIZxDdCdoiOjmghnQ52gt_nD6-wpW7w8Ps_uFplmpNhkvARuNMh8aUzJiBGac6o043Wdi1oqBlyanBFeUEb5UuRFLaWapg0zrbXUbIKudr5d8OnUuKlaGzU0jXLg-1iVJc_LtJbA6x2og48xgKm6YNuURkVJ9Rt59R95gi8G137ZQr1Hh4yTfjnoKqYETFBO27jHRJ6-wjj7AXMFi80</recordid><startdate>19870501</startdate><enddate>19870501</enddate><creator>GIROTTI, M. 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Cell therapy and gene therapy</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Cardiac Output</topic><topic>Emergency and intensive respiratory care</topic><topic>Female</topic><topic>Hemodynamics</topic><topic>Intensive care medicine</topic><topic>Medical sciences</topic><topic>Pneumonia, Pneumococcal - etiology</topic><topic>Pneumonia, Pneumococcal - physiopathology</topic><topic>Pneumonia, Pneumococcal - therapy</topic><topic>Pseudomonas Infections - complications</topic><topic>Pulmonary Circulation</topic><topic>Respiration</topic><topic>Respiration, Artificial</topic><topic>Sheep</topic><topic>Thromboxane B2 - blood</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>GIROTTI, M. J</creatorcontrib><creatorcontrib>HONG, K</creatorcontrib><creatorcontrib>DEMAJO, W. C</creatorcontrib><creatorcontrib>TODD, T. R. 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J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of regional pulmonary perfusion in lobar pneumonia during high frequency and conventional mechanical ventilation in sheep</atitle><jtitle>Canadian journal of anesthesia</jtitle><addtitle>Can J Anaesth</addtitle><date>1987-05-01</date><risdate>1987</risdate><volume>34</volume><issue>3</issue><spage>252</spage><epage>258</epage><pages>252-258</pages><issn>0832-610X</issn><eissn>1496-8975</eissn><coden>CJOAEP</coden><abstract>We compared the effects of high frequency jet ventilation (HFV), conventional ventilation (CMV), and spontaneous breathing (SB) on regional pulmonary blood flows (QLLL), standard cardiopulmonary measurements and the serum levels of the first generation metabolites of prostacyclin (6-keto-PGF1 alpha) and thromboxane A2 (TxB2) in established left lower lobe pseudomonas aeruginosa pneumonia in 11 sheep. Gram negative pneumonia resulted in significant increases in alveolar-arterial oxygen gradients [(A-a)DO2] and pulmonary shunt fractions (Qs/Qt), as well as a significant decrease in QLLL during SB. Significant differences in standard haemodynamics, (A-a)DO2, Qs/Qt, and QLLL were not observed when HFV was compared to CMV. However, serum levels of 6-keto-PGF1 alpha were elevated when the animals underwent HFV. We conclude that HFV is a safe and efficient method of oxygenation and ventilation in unilobar gram negative pneumonia and also results in a significant increase in the serum levels of 6-keto-PGF1 alpha when compared to CMV in sheep. The exact significance of the latter finding is the subject of current investigation.</abstract><cop>Toronto, ON</cop><pub>Canadian Anesthesiologists' Society</pub><pmid>3581395</pmid><doi>10.1007/BF03015162</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0832-610X |
| ispartof | Canadian journal of anesthesia, 1987-05, Vol.34 (3), p.252-258 |
| issn | 0832-610X 1496-8975 |
| language | eng |
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| source | MEDLINE; Springer Nature - Complete Springer Journals |
| subjects | 6-Ketoprostaglandin F1 alpha - blood Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy Animals Biological and medical sciences Cardiac Output Emergency and intensive respiratory care Female Hemodynamics Intensive care medicine Medical sciences Pneumonia, Pneumococcal - etiology Pneumonia, Pneumococcal - physiopathology Pneumonia, Pneumococcal - therapy Pseudomonas Infections - complications Pulmonary Circulation Respiration Respiration, Artificial Sheep Thromboxane B2 - blood |
| title | Comparison of regional pulmonary perfusion in lobar pneumonia during high frequency and conventional mechanical ventilation in sheep |
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