J Clin Monit Comput - Cardiac index assessment using bioreactance in patients undergoing cytoreductive surgery in ovarian carcinoma.

Tópicos

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Resumo

This clinical study compared the cardiac index (CI) assessed by the totally non-invasive method of bioreactance (CIBR) (NICOM?, Cheetah Medical, Vancouver, USA) to transpulmonary thermodilution (CITD) during cytoreductive surgery in ovarian carcinoma. The hypothesis was that CI could be assessed by bioreactance in an accurate and precise manner including accurate trending ability when compared to transpulmonary thermodilution. In 15 patients CIBR and CITD were assessed after induction of anesthesia, after opening of the peritoneum, hourly during the operative procedure, and 30?min after extubation. Trending ability was assessed between the described timepoints. In total 84 points of measurement were analyzed. Concordance correlation coefficient for repeated measures correlating the CIBR and CITD was 0.32. Bias was 0.26?l/min/m(2) (limits of agreement -1.39 and 1.92?l/min/m(2)). The percentage error was 50.7?%. Trending ability quantified by the mean of angles which are made by the CI vector and the line of identity (y?=?x) showed a value for CIBR of ?=?23.4?. CI assessment by bioreactance showed acceptable accuracy and trending ability. However, its precision was poor. Therefore, CI measurement can not be solely based on bioreactance in patients undergoing cytoreductive surgery in ovarian carcinoma.

Resumo Limpo

clinic studi compar cardiac index ci assess total noninvas method bioreact cibr nicom cheetah medic vancouv usa transpulmonari thermodilut citd cytoreduct surgeri ovarian carcinoma hypothesi ci assess bioreact accur precis manner includ accur trend abil compar transpulmonari thermodilut patient cibr citd assess induct anesthesia open peritoneum hour oper procedur min extub trend abil assess describ timepoint total point measur analyz concord correl coeffici repeat measur correl cibr citd bias lminm limit agreement lminm percentag error trend abil quantifi mean angl made ci vector line ident yx show valu cibr ci assess bioreact show accept accuraci trend abil howev precis poor therefor ci measur can sole base bioreact patient undergo cytoreduct surgeri ovarian carcinoma

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