One swan-ganz catheter with a 1.5cc syringe were returned for examination.The reported event of svo2 values issue was not confirmed.The catheter passed in-vitro calibration with lab cal-cup.The catheter was submerged in a 37.0 °c water bath and read 37.0 °c on a vigilance ii monitor.Thermistor temperature reading accuracy is +/- 0.3 °c per vigilance ii manual.The thermistor and thermal filament circuit were continuous.There were no open or intermittent conditions.The eeprom data was found to be normal, both the stored data and the computed data matched.The resistance value of the thermal filament circuit was measured and found to be within specification.However, the balloon inflated clear but eccentric and remained inflated for 5 minutes without leakage.The balloon was found to have an eccentricity that was out of specification.The balloon shows no sign of deterioration.All through lumens were patent without any leakage or occlusion.No other visible damage or abnormality was observed from the catheter body and returned syringe.An investigation has been initiated to consider any potential manufacturing factors that may have contributed to this complaint.Invasive procedures involve some patient risks.Although serious complications are relatively uncommon, the physician is advised, before deciding to insert or use the introducer, to consider the potential benefits in relation to the possible complications.The techniques for insertion and the occurrence of complications is well described in the literature.In this case, the patient required a new stick to insert a new catheter and guidewire.It is unknown if user or procedural factors may have contributed to this event.Complaint histories for all reported events are reviewed against trending control limits on a monthly basis, and any excursions above the control limits are assessed and documented as part of this monthly review.Udi # (b)(4).
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