"yesterday we have two isolated incidents of an internal leak in the new single limb ge circuits.One occurred in (b)(6) and another at (b)(6) (which i witnessed).In both cases, the preop leak test and machine check was unremarkable.Induction in both cases was uneventful; however, in the middle of both cases, set tidal volumes were unattainable at low flows with mechanical and manual mask ventilation.Adequate tvs could be achieved with high flows.Both machines detected a leak.In both events the circuit was changed out, and this issue was resolved.
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