Fluid resuscitation influences cardiovascular performance and mortality in a murine model of sepsis. 2009

Sergio L Zanotti-Cavazzoni, and Massimiliano Guglielmi, and Joseph E Parrillo, and Tracy Walker, and R Phillip Dellinger, and Steven M Hollenberg
Division of Critical Care Medicine,Cooper University Hospital, Dorrance 360,Once Cooper Plaza, Camden,NJ 08103, USA. zanotti-sergio@cooperhealth.edu

BACKGROUND Current murine models of sepsis do not account for the effects of aggressive fluid resuscitation on hemodynamics and mortality. OBJECTIVE Evaluate the impact of fluid resuscitation regimens on cardiovascular performance and survival in a murine model of sepsis. METHODS Mice (n = 90) were made septic by cecal ligation and puncture (CLP), and received antibiotics plus Low, Intermediate, or High fluid resuscitation regimens. Stroke volume (SV), cardiac output (CO), and fractional shortening (FS) were measured by echocardiography at predefined time points. RESULTS Baseline echocardiographic measurements were similar in all groups. After CLP, SV and CO decreased early in all groups; High: 57.2 +/- 9.2 to 23.9 +/- 7.2 microL, and 26.8 +/- 4.9 to 13.1 +/- 5.8 ml/min; Intermediate: 52.1 +/- 7.0 to 21.5 +/- 6.6 microL, and 24.9 +/- 4.1 to 11.9 +/- 3.9 ml/min; Low: 54.0 +/- 7.0 to 20.3 +/- 5.6 microL, and 25.8 +/- 4.0 to 11.3 +/- 3.9 ml/min (P < 0.05 for all vs. baseline). With resuscitation there was a dose-dependent improvement in SV and CO (P < 0.05). At 24 h SV and CO were 44.0 +/- 13.8 microL and 20.7 +/- 8.5 ml/min in the High group, 39.8 +/- 12.3 microL and 16.7 +/- 6.5 ml/min in the Intermediate group, and 30.1 +/- 12.4 microL and 14.0 +/- 7.2 ml/min in the Low group. Survival was improved in the High fluid group (75%) compared to the Intermediate (58%) and the Low (35%) resuscitation groups (P < 0.05). CONCLUSIONS In this model, as in human sepsis, the intensity of fluid resuscitation modulates hemodynamic response and mortality. Incorporation of early and aggressive fluid resuscitation can significantly enhances the clinical relevance of murine models of sepsis.

UI MeSH Term Description Entries
D002302 Cardiac Output The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat). Cardiac Outputs,Output, Cardiac,Outputs, Cardiac
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D004452 Echocardiography Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic. Echocardiography, Contrast,Echocardiography, Cross-Sectional,Echocardiography, M-Mode,Echocardiography, Transthoracic,Echocardiography, Two-Dimensional,Transthoracic Echocardiography,2-D Echocardiography,2D Echocardiography,Contrast Echocardiography,Cross-Sectional Echocardiography,Echocardiography, 2-D,Echocardiography, 2D,M-Mode Echocardiography,Two-Dimensional Echocardiography,2 D Echocardiography,Cross Sectional Echocardiography,Echocardiography, 2 D,Echocardiography, Cross Sectional,Echocardiography, M Mode,Echocardiography, Two Dimensional,M Mode Echocardiography,Two Dimensional Echocardiography
D004562 Electrocardiography Recording of the moment-to-moment electromotive forces of the HEART as projected onto various sites on the body's surface, delineated as a scalar function of time. The recording is monitored by a tracing on slow moving chart paper or by observing it on a cardioscope, which is a CATHODE RAY TUBE DISPLAY. 12-Lead ECG,12-Lead EKG,12-Lead Electrocardiography,Cardiography,ECG,EKG,Electrocardiogram,Electrocardiograph,12 Lead ECG,12 Lead EKG,12 Lead Electrocardiography,12-Lead ECGs,12-Lead EKGs,12-Lead Electrocardiographies,Cardiographies,ECG, 12-Lead,EKG, 12-Lead,Electrocardiograms,Electrocardiographies, 12-Lead,Electrocardiographs,Electrocardiography, 12-Lead
D006339 Heart Rate The number of times the HEART VENTRICLES contract per unit of time, usually per minute. Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006439 Hemodynamics The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM. Hemodynamic
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013318 Stroke Volume The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume. Ventricular Ejection Fraction,Ventricular End-Diastolic Volume,Ventricular End-Systolic Volume,Ejection Fraction, Ventricular,Ejection Fractions, Ventricular,End-Diastolic Volume, Ventricular,End-Diastolic Volumes, Ventricular,End-Systolic Volume, Ventricular,End-Systolic Volumes, Ventricular,Fraction, Ventricular Ejection,Fractions, Ventricular Ejection,Stroke Volumes,Ventricular Ejection Fractions,Ventricular End Diastolic Volume,Ventricular End Systolic Volume,Ventricular End-Diastolic Volumes,Ventricular End-Systolic Volumes,Volume, Stroke,Volume, Ventricular End-Diastolic,Volume, Ventricular End-Systolic,Volumes, Stroke,Volumes, Ventricular End-Diastolic,Volumes, Ventricular End-Systolic
D016887 Cardiopulmonary Resuscitation The artificial substitution of heart and lung action as indicated for HEART ARREST resulting from electric shock, DROWNING, respiratory arrest, or other causes. The two major components of cardiopulmonary resuscitation are artificial ventilation (RESPIRATION, ARTIFICIAL) and closed-chest CARDIAC MASSAGE. Basic Cardiac Life Support,CPR,Code Blue,Mouth-to-Mouth Resuscitation,Cardio-Pulmonary Resuscitation,Life Support, Basic Cardiac,Cardio Pulmonary Resuscitation,Mouth to Mouth Resuscitation,Mouth-to-Mouth Resuscitations,Resuscitation, Cardio-Pulmonary,Resuscitation, Cardiopulmonary,Resuscitation, Mouth-to-Mouth,Resuscitations, Mouth-to-Mouth
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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