Venovenous perfusion with a membrane oxygenator

Pulmonary support using venovenous bypass and a biological oxygenator.

Membrane Oxygenator with a Built-In Hemoconcentrator

In order to facilitate the handling of cardiopulmonary bypass (CPB) and simplify the circuit, we have developed a new membrane oxyganator with a hemofiltration function. The hollow fiber units for gas exchange and hemofiltration were combined in concentric circles in a cylindrical housing. The total priming volume was 190 ml. Because we used a silicon-coated hollow fiber membrane for gas exchan...

Extraction of Nitroglycerin by a Membrane Oxygenator

This study examined the extraction efficiency of a membrane oxygenator for nitroglycerin (NTG). An In-Vitro cardiopulmonary bypass circuit was constructed to mimic clinical conditions. A NTG solution (150 ng/ml) was placed into the circuit via a glass cardiotomy reservoir and circulated at 5 Ll min for 60 min. Analysis of NTG samples obtained during the study showed that the oxygenator initiall...

Argatroban for Heparin-Induced Thrombocytopenia during Venovenous Extracorporeal Membrane Oxygenation with Continuous Venovenous Hemofiltration.

Patients receiving extracorporeal membrane oxygenation (ECMO) are at risk of circuit thrombosis due to constant contact between blood and the extracorporeal components. Unfractionated heparin has traditionally been used in this setting as a systemic form of anticoagulation to prevent thrombosis of the circuit. However, if a patient develops heparin-induced thrombocytopenia (HIT), an alternative...

Evaluation of infant membrane oxygenator in sheep.

OBJECTIVE To analyze the security and efficacy of a new membrane oxygenator, the so-called OXM - 1500. METHODS From May 2005 to September 2006, six sheep of Santa Inês breed (five male and one female, respectively) were studied. The average body weight was 14.1 (+/-5) kg, body surface 0.6 (+/-0.2) m(2) and a mean age 3.8 (+/-1.5) months. All of them were submitted to extracorporeal circulatio...