{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,14]],"date-time":"2026-09-14T12:10:18Z","timestamp":1789387818786,"version":"build-2803163510"},"reference-count":30,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2015,3,31]],"date-time":"2015-03-31T00:00:00Z","timestamp":1427760000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["ICMx"],"published-print":{"date-parts":[[2015,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>The aim of the study was to describe the effects of intra-abdominal hypertension (IAH) on regional and microcirculatory intestinal blood flow, renal blood flow, and urine output, as well as their response to increases in blood pressure induced by norepinephrine.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>This was a pilot, controlled study, performed in an animal research laboratory. Twenty-four anesthetized and mechanically ventilated sheep were studied. We measured systemic hemodynamics, superior mesenteric and renal blood flow, villi microcirculation, intramucosal-arterial PCO<jats:sub>2<\/jats:sub>, urine output, and intra-abdominal pressure. IAH (20\u00a0mm Hg) was generated by intraperitoneal instillation of warmed saline. After 1\u00a0h of IAH, sheep were randomized to IAH control (<jats:italic>n<\/jats:italic>\u2009=\u20098) or IAH norepinephrine (<jats:italic>n<\/jats:italic>\u2009=\u20098) groups, for 1\u00a0h. In this last group, mean arterial pressure was increased about 20\u00a0mm Hg with norepinephrine. A sham group (<jats:italic>n<\/jats:italic>\u2009=\u20098) was also studied. Fluids were administered to prevent decreases in cardiac output. Differences between groups were analyzed with two-way repeated measures of analysis of variance (ANOVA).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>After 2\u00a0h of IAH, abdominal perfusion pressure decreased in IAH control group compared to IAH norepinephrine and sham groups (49\u2009\u00b1\u200911, 73\u2009\u00b1\u200911, and 86\u2009\u00b1\u200915\u00a0mm Hg, <jats:italic>P<\/jats:italic> &lt; 0.0001). There were no differences in superior mesenteric artery blood flow, intramucosal-arterial PCO<jats:sub>2<\/jats:sub>, and villi microcirculation among groups. Renal blood flow (49\u2009\u00b1\u200930, 32\u2009\u00b1\u200924, and 102\u2009\u00b1\u200945\u00a0mL.min<jats:sup>\u22121<\/jats:sup>.kg<jats:sup>\u22121<\/jats:sup>, <jats:italic>P<\/jats:italic> &lt; 0.0001) and urinary output (0.3\u2009\u00b1\u20090.1, 0.2\u2009\u00b1\u20090.2, and 1.0\u2009\u00b1\u20090.6\u00a0mL.h<jats:sup>\u22121<\/jats:sup>.kg<jats:sup>\u22121<\/jats:sup>, <jats:italic>P<\/jats:italic> &lt; 0.0001) were decreased in IAH control and IAH norepinephrine groups, compared to the sham group.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>In this experimental model of IAH, the gut and the kidney had contrasting responses: While intestinal blood flow and villi microcirculation remained unchanged, renal perfusion and urine output were severely compromised.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/s40635-015-0046-1","type":"journal-article","created":{"date-parts":[[2015,3,30]],"date-time":"2015-03-30T00:33:09Z","timestamp":1427675589000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Effects of norepinephrine on tissue perfusion in a sheep model of intra-abdominal hypertension"],"prefix":"10.1186","volume":"3","author":[{"given":"Gonzalo","family":"Ferrara","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vanina S","family":"Kanoore Edul","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juan F","family":"Caminos Eguillor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Enrique","family":"Martins","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos","family":"Canull\u00e1n","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H\u00e9ctor S","family":"Canales","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Can","family":"Ince","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elisa","family":"Estenssoro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arnaldo","family":"Dubin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2015,3,31]]},"reference":[{"key":"46_CR1","first-page":"293","volume":"80","author":"ML Malbrain","year":"2014","unstructured":"Malbrain ML, Chiumello D, Cesana BM, Reintam Blaser A, Starkopf J, Sugrue M, Pelosi P, Severgnini P, Hernandez G, Brienza N, Kirkpatrick AW, Schachtrupp A, Kempchen J, Estenssoro E, Vidal MG, De Laet I, De Keulenaer BL, WAKE-Up! 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