Catheterization of the carotid artery and jugular vein to perform hemodynamic measures, infusions and blood sampling in a conscious rat model.
The success of a small animal model to study critical illness is, in part, dependent on the ability of the model to simulate the human condition. Intra-tracheal inoculation of a known amount of bacteria has been successfully used to reproduce the pathogenesis of pneumonia which then develops into sepsis. Monitoring hemodynamic parameters and providing standard clinical treatment including infusion of antibiotics, fluids and drugs to maintain blood pressure is critical to simulate routine supportive care in this model but to do so requires both arterial and venous vascular access. The video details the surgical technique for implanting carotid artery and common jugular vein catheters in an anesthetized rat. Following a 72 hr recovery period, the animals will be re-anesthetized and connected to a tether and swivel setup attached to the rodent housing which connects the implanted catheters to the hemodynamic monitoring system. This setup allows free movement of the rat during the study while continuously monitoring pressures, infusing fluids and drugs (antibiotics, vasopressors) and performing blood sampling.
Critical Care Medicine Department, Clinical Center, National Institutes of Health.
Jing
J
Feng
Critical Care Medicine Department, Clinical Center, National Institutes of Health.
Yvonne
Y
Fitz
Critical Care Medicine Department, Clinical Center, National Institutes of Health.
Yan
Y
Li
Critical Care Medicine Department, Clinical Center, National Institutes of Health.
Melinda
M
Fernandez
Critical Care Medicine Department, Clinical Center, National Institutes of Health.
Irene
I
Cortes Puch
Critical Care Medicine Department, Clinical Center, National Institutes of Health.
Dong
D
Wang
Harvard Apparatus.
Stephanie
S
Pazniokas
ADInstruments.
Brandon
B
Bucher
Critical Care Medicine Department, Clinical Center, National Institutes of Health.
Xizhong
X
Cui
Critical Care Medicine Department, Clinical Center, National Institutes of Health; ssolomon@cc.nih.gov.
Steven B
SB
Solomon
D000818:Animals; D001800:Blood Specimen Collection / Q000379:methods*; D002339:Carotid Arteries; D002404:Catheterization / Q000379:methods*; D002405:Catheterization, Central Venous / Q000379:methods; D006439:Hemodynamics; D007601:Jugular Veins; D051381:Rats