Pacemakers are widely used in postcardiotomy patients to avoid severe arrhythmia. The peripheral perfusion index (PI) has been considered as an effective parameter evaluating the circulation. In this study, investigators aim to avaluate the ability of peripheral perfusion index to detect changes of hemodynamics in postcardiotomy patients with pacemakers.
Pacemakers are widely used in postcardiotomy patients to avoid severe arrhythmia. The peripheral perfusion index (PI) has been considered as an effective parameter evaluating the circulation. In this study, investigators aim to evaluate the ability of peripheral perfusion index to detect changes of hemodynamics (cardiac output or storke volume,et al) in postcardiotomy patients with pacemakers.
Study Type
OBSERVATIONAL
Enrollment
50
Zhongshan Hospital, Fudan University
Shanghai, Shanghai Municipality, China
RECRUITINGCardiac output
Measurement of cardiac output by Flotrac ,the metric is L/min.
Time frame: During the study procedure
stroke volume
Measurement of stroke volume by Flotrac ,the metric is ml.
Time frame: During the study procedure
Peripheral perfusion index
Measurement of Peripheral perfusion index by masimo radical.
Time frame: During the study procedure
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