TY - JOUR
T1 - Mask ventilation, hypocapnia, and seizure duration in electroconvulsive therapy
AU - Choukalas, Christopher G.
AU - Walter, James
AU - Glick, David
AU - O'Connor, Michael F.
AU - Tung, Avery
AU - Dinwiddie, Stephen H.
AU - Nunnally, Mark E.
PY - 2010/9/1
Y1 - 2010/9/1
N2 - Study Objective: To compare the Mapleson D circuit and the bag-valve-mask device for mask ventilation of patients undergoing electroconvulsive therapy (ECT). Design: Cross-over study. Setting: Single-center academic medical center. Patients: 18 patients undergoing ECT for major depressive disorder. Interventions: Patients were randomized to undergo mask ventilation by the Mapleson D circuit or the bag-valve-mask device. Measurements: End-tidal CO 2, seizure duration, and airway pressure values were recorded. Main Results: End-tidal CO2 was significantly lower with the bag-valve-mask device. When compared with the bag-valve-mask device, ventilation with the Mapleson circuit resulted in rebreathing of CO2 in nearly all patients, shorter expiratory time, and lower pressure ramp slope. Conclusions: Hypocapnia was not associated with longer seizures, and the user-device interaction might affect device performance.
AB - Study Objective: To compare the Mapleson D circuit and the bag-valve-mask device for mask ventilation of patients undergoing electroconvulsive therapy (ECT). Design: Cross-over study. Setting: Single-center academic medical center. Patients: 18 patients undergoing ECT for major depressive disorder. Interventions: Patients were randomized to undergo mask ventilation by the Mapleson D circuit or the bag-valve-mask device. Measurements: End-tidal CO 2, seizure duration, and airway pressure values were recorded. Main Results: End-tidal CO2 was significantly lower with the bag-valve-mask device. When compared with the bag-valve-mask device, ventilation with the Mapleson circuit resulted in rebreathing of CO2 in nearly all patients, shorter expiratory time, and lower pressure ramp slope. Conclusions: Hypocapnia was not associated with longer seizures, and the user-device interaction might affect device performance.
KW - Electroconvulsive therapy
KW - Equipment and supplies: bag-valve-mask ventilation device
KW - Mapleson D circuit
KW - Mask ventilation
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U2 - 10.1016/j.jclinane.2009.10.015
DO - 10.1016/j.jclinane.2009.10.015
M3 - Article
C2 - 20868961
AN - SCOPUS:77957117271
SN - 0952-8180
VL - 22
SP - 415
EP - 419
JO - Journal of Clinical Anesthesia
JF - Journal of Clinical Anesthesia
IS - 6
ER -