ventilations delivered to a cadaver by bag-valve mask, approximately 25 times more gastric insufflation was generated vs. ventilations
delivered with the b-card. 13
Vygon believes the b-card offers multiple benefits during the treatment of cardiac arrest
and maximizes adherence to ILCOR guidelines, including:
>> improved hemodynamics during CPR and
continuous chest compressions;
>> reduced injury to the alveoli and lungs
caused by chest compressions;
>> improved ventilation and oxygenation
>> reduced gastric inflation; and
>> simplified management of cardiac arrest.
Does the b-card increase survival from cardiac arrest? Currently there are no published
studies that used the b-card exclusively. There
are, however, a few studies that have used the
Boussignac CPR system manufactured by
Vygon, which has the same virtual valve as
Preliminary data from a small study conducted in the out-of-hospital setting showed
an increase in ROSC rate and survival. Of the
48 patients enrolled, 38 (79%) were intubated
using the Boussignac CPR system. The other
10 (21%) patients underwent standard intubation and ventilation. 14
The rate of ROSC in those patients intubated with the Boussignac CPR system was
44.7% as compared to 10% in the standard
interventions group. Survival to discharge was
26.3% in the Boussignac CPR system group
as compared to 10% in the standard inter-
This small study isn’t sufficient enough to
fully validate the effectiveness of the b-card,
but there are ongoing studies by the Paris Fire
Brigade and Marc Gillis, MD, in Belgium
that will help determine the clinical benefit
of the b-card.
Although approved and in use in Europe,
the b-card is currently undergoing field tests
and awaiting pre-market clearance submission to the FDA. Once approved, and further
field studies are conducted, this device has the
potential to affect the performance of CPR and,
more specifically, ventilation during CPR. JEMS
W. Scott Gilmore, MD, EM T-P, FACEP, FAEMS, is medical direc-
tor for St. Louis Fire Department. He’s been involved in EMS
for over 22 years as a provider, educator and medical director. He completed an emergency medicine residency and EMS
fellowship at Washington University in St. Louis. He’s also a
member of the Street Medicine Society.
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Figure 2: B-card used with a facemask (left) and supraglottic airway (right)