Title:Pumping O2 with no N2: An Overview of Hollow Fiber Membrane Oxygenators with Integrated Arterial Filters
Volume: 20
Issue: 1
Author(s): Anxin Liu, Zhiquan Sun, Qier Liu, Ning Zhu and Shigang Wang*
Affiliation:
- Department of Surgery, University of Maryland School of Medicine, Baltimore, MD,United States
Keywords:
Hollow fiber membrane oxygenator, Arterial filter, Gaseous microemboli, Cardiopulmonary bypass, Cardiac surgery,
Capiox.
Abstract: The advancement of cardiac surgery benefits from the continual technological progress of
cardiopulmonary bypass (CPB). Every improvement in the CPB technology requires further clinical and
laboratory tests to prove its safety and effectiveness before it can be widely used in clinical practice. In
order to reduce the priming volume and eliminate a separate arterial filter in the CPB circuit, several
manufacturers developed novel hollow-fiber membrane oxygenators with integrated arterial filters
(IAF). Clinical and experimental studies demonstrated that an oxygenator with IAF could reduce total
priming volume, blood donor exposure and gaseous microemboli delivery to the patient. It can be easily
set up and managed, simplifying the CPB circuit without sacrificing safety. An oxygenator with IAF is
expected to be more beneficial to the patients with low body weight and when using a minimized extracorporeal
circulation system. The aim of this review manuscript was to discuss briefly the concept of
integration, the current oxygenators with IAF, and the in-vitro / in-vivo performance of the oxygenators
with IAF.