Objective: This study aimed to investigate the influence of injection rates of calibrating\nstandard solution on monitoring pulse indicator continuous cardiac output (PICCO,\nmade in Germany), and thereby to provide significant references for clinical practice.\nMethods: A total of 108 critical patients in stroke intensive care unit were identified.\nAll these participants received transesophageal cardiac color Doppler ultrasound, and\nwithin 15 min PICCO equipment was utilized to monitor the relevant parameters, by\nmeans of 0 Ã?°C calibrating standard solution, and the injection speeds were 2ââ?¬â??4, 5ââ?¬â??7,\nand 8ââ?¬â??10 s. Besides, the monitoring indicators were as follows, cardiac index, global\nejection fraction, global end diastolic volume index. The potential correlations were\nevaluated between PICCO and transesophageal cardiac color Doppler ultrasound.\nResults: All the data was available, and the monitored parameters of PICOO at\n2ââ?¬â??4, 5ââ?¬â??7, and 8ââ?¬â??10 s were positively correlated with the parameters obtained from\ntransesophageal cardiac color Doppler ultrasound (P < 0.05). Specially, it is worth\nemphasizing that the best correlation between them could be provided when the\ninjection rate was 2ââ?¬â??4 s.\nConclusion: When the injection rate at 2ââ?¬â??4 s, the parameters obtained by PICOO were\nmuch closer to that of transesophageal cardiac color Doppler ultrasound. Furthermore,\nthe parameters of PICOO obtained at 2ââ?¬â??4 s could better reflect cardiac function of\npatients.
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