Pt was hemodynamically unstable with respiratory failure and required ecmo support.Arterial and venous cannulas were inserted via left groin after heparinization.Cannula position was confirmed by tee ecmo circuit was brought to surgical field.Circuit has two ends, which were labeled red and blue by mfr.The red cannula should connect to arterial access for perfusion, and the blue cannula should connect to venous access for drainage, which was completed.Once ecmo was initiated, pt was found to be hypotensive (30-40mmhg) with right ventricular distention.Ecmo was not flowing sufficiently, and perfusionist found circuit connection was wrong; red labeled line was venous, and blue labeled line was arterial.Diagnosis or reason for use: failed completion pneumonectomy.Event abated after use stopped or dose reduced? no.
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