{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T20:01:03Z","timestamp":1780084863466,"version":"3.54.0"},"reference-count":19,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2019,1,15]],"date-time":"2019-01-15T00:00:00Z","timestamp":1547510400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Anaesthesiol Scand"],"published-print":{"date-parts":[[2019,5]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>The distending intravascular pressure at no flow conditions reflects the stressed volume. While this haemodynamic variable is recognised as clinically important, there is a paucity of reports of its range and responsiveness to volume expansion in patients without cardiovascular disease and no reports of correlations to echocardiographic assessments of left ventricular filling.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Twenty\u2010seven awake (13 male), spontaneously breathing patients without any history of cardiopulmonary, vascular or renal disease were studied prior to induction of anaesthesia. The no\u2010flow equilibrium pressure in the arm following rapid circulatory occlusion (<jats:italic>P<\/jats:italic><jats:sub>arm<\/jats:sub>) was measured via a radial arterial catheter. Transthoracic echocardiography was used to measure left ventricular end diastolic area and volume as well as the diameter of the inferior vena cava. The <jats:italic>P<\/jats:italic><jats:sub>arm<\/jats:sub> and echocardiographic variables were measured before and after administration of 500\u00a0mL 0.9% NaCl over 10\u00a0minutes. Changes were analysed by paired <jats:italic>t<\/jats:italic> test, Pearson's correlation and multiple linear regression.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p><jats:italic>P<\/jats:italic><jats:sub>arm<\/jats:sub> increased overall from 22\u00a0\u00b1\u00a05\u00a0mm\u00a0Hg to 25\u00a0\u00b1\u00a06\u00a0mm\u00a0Hg (mean difference 3.0\u00a0\u00b1\u00a04.5\u00a0mm\u00a0Hg, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.002) following the fluid bolus with corresponding increases in arterial pressure and echocardiographic variables. Variability in the direction of the <jats:italic>P<\/jats:italic><jats:sub>arm<\/jats:sub> response reflected concomitant changes in vascular compliance. Only weak correlations were observed between changes in <jats:italic>P<\/jats:italic><jats:sub>arm<\/jats:sub> and inferior vena cava diameter indexed to body surface area (<jats:italic>R<\/jats:italic><jats:sup>2<\/jats:sup>\u00a0=\u00a00.29, <jats:italic>P<\/jats:italic>\u00a0=\u00a00.01).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Preoperative measurements of <jats:italic>P<\/jats:italic><jats:sub>arm<\/jats:sub> increased following acute expansion of the intravascular volume. Echocardiography demonstrated poor correlation with <jats:italic>P<\/jats:italic><jats:sub>arm<\/jats:sub>.<\/jats:p><\/jats:sec>","DOI":"10.1111\/aas.13318","type":"journal-article","created":{"date-parts":[[2019,1,16]],"date-time":"2019-01-16T06:49:45Z","timestamp":1547621385000},"page":"594-600","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["The stop\u2010flow arm equilibrium pressure in preoperative patients: Stressed volume and correlations with echocardiography"],"prefix":"10.1111","volume":"63","author":[{"given":"Konstantin","family":"Yastrebov","sequence":"first","affiliation":[{"name":"St George Hospital  Sydney New South Wales Australia"},{"name":"Faculty of Medicine The University of New South Wales  Sydney New South Wales 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