Key result
Maintaining positive and zero flow (PZF) satisfied minimum assist flow requirements and may avoid endocardial suction in calves implanted with centrifugal pumps.
Why the study?
Does maintaining positive and zero flow (PZF) avoid endocardial suction in calves with centrifugal pumps compared to positive and negative flow (PNF)?
Population
3 calves implanted with centrifugal pumps
Comparison
Positive and zero flow or continuously positive… vs Both positive and negative flow (PNF)
Design
Preclinical
Authors
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Maintaining positive and zero flow (PZF) in centrifugal pumps satisfies assist flow requirements and may prevent endocardial suction in a preclinical calf model.
Does maintaining positive and zero flow (PZF) avoid endocardial suction in calves with centrifugal pumps compared to positive and negative flow (PNF)?
Maintaining positive and zero flow (PZF) in centrifugal pumps satisfies assist flow requirements and may prevent endocardial suction in a preclinical calf model.
Akimoto et al. (2000) studied Left ventricular bypass (n=3). Positive and zero flow (PZF) vs. Positive and negative flow (PNF) and continuously positive flow (CPF) was evaluated on Pump flow volume during systole (Vs) and diastole (Vd). Maintaining positive and zero flow (PZF) satisfied minimum assist flow requirements and may avoid endocardial suction in calves implanted with centrifugal pumps.
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