Sökning: onr:"swepub:oai:DiVA.org:kth-6522" > The assessment of a...
Fältnamn | Indikatorer | Metadata |
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000 | 03744naa a2200517 4500 | |
001 | oai:DiVA.org:kth-6522 | |
003 | SwePub | |
008 | 061206s2006 | |||||||||||000 ||eng| | |
009 | oai:DiVA.org:uu-153034 | |
009 | oai:prod.swepub.kib.ki.se:1946973 | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-65222 URI |
024 | 7 | a https://doi.org/10.1088/0967-3334/27/12/0032 DOI |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1530342 URI |
024 | 7 | a http://kipublications.ki.se/Default.aspx?queryparsed=id:19469732 URI |
040 | a (SwePub)kthd (SwePub)uud (SwePub)ki | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Söderqvist, Emilu Department of Medical Engineering, Karolinska Institutet, Stockholm, Sweden4 aut0 (Swepub:kth)u197v88m |
245 | 1 0 | a The assessment of acute load and contractility changes by left ventricular pressure measurements |
264 | c 2006-10-25 | |
264 | 1 | b IOP Publishing,c 2006 |
338 | a print2 rdacarrier | |
500 | a QC 20100922 | |
520 | a The aim of this study was to establish whether analysis of the left ventricular pressure waveform provides indicative information about cardiac load and contractility and to develop an algorithm for computer-based assessment of changes in these variables. In eight healthy standard breed anaesthetized open-chest pigs, a high frequency response guide-wire mounted pressure sensor was introduced into the left ventricle. Preload reduction was induced by vena cava occlusion, afterload increase by an i.v. injection of phenylephrine and increased contractility by an i.v. injection of adrenalin. Left ventricular pressure waveform analysis was performed by plotting the slope of the pressure curve during the systolic ejection period versus maximal systolic pressure. The analysis revealed characteristic changes in left ventricular pressure and pressure waveform and identified easily discernible reaction patterns in the slope versus maximal pressure plot, specific for each provocation. Analysis of the left ventricular waveform provides indicative information about loading conditions and contractility. The proposed algorithm can easily be implemented in pressure monitoring systems allowing real-time assessment and discrimination of acute changes in preload, afterload and myocardial performance. | |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Medicinteknikx Medicinsk laboratorie- och mätteknik0 (SwePub)206012 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Medical Engineeringx Medical Laboratory and Measurements Technologies0 (SwePub)206012 hsv//eng |
653 | a monitoring | |
653 | a left ventricle | |
653 | a pressure waves | |
653 | a loading conditions | |
653 | a contractility | |
653 | a Medical engineering | |
653 | a Medicinsk teknik | |
653 | a MEDICINE | |
700 | 1 | a Hultman, Janu Uppsala universitet,Institutionen för kirurgiska vetenskaper4 aut |
700 | 1 | a Källner, Göranu Karolinska Institutet4 aut |
700 | 1 | a Nowak, Jaceku Karolinska Institutet4 aut |
700 | 1 | a Brodin, Lars-Åkeu Karolinska Institutet4 aut0 (Swepub:kth)u1jq9s27 |
710 | 2 | a Department of Medical Engineering, Karolinska Institutet, Stockholm, Swedenb Institutionen för kirurgiska vetenskaper4 org |
773 | 0 | t Physiological Measurementd : IOP Publishingg 27:12, s. 1281-1292q 27:12<1281-1292x 0967-3334x 1361-6579 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-6522 |
856 | 4 8 | u https://doi.org/10.1088/0967-3334/27/12/003 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-153034 |
856 | 4 8 | u http://kipublications.ki.se/Default.aspx?queryparsed=id:1946973 |
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