The reported event occurred in usa.The following complaint information was provided to maquet cardiopulmonary:¿ caitlin blau, ccp perfusion manager at mayo rochester location called me to discuss occurrences that they are noticing with their new spectrum carts on pediatric patients.These patients are on a spectrum quantum pump with pediatric quadrox id oxy.A picture was provided.She stated that they are observing: 1.Clotting issues and what appears to be a shorter run time before they need to change out the oxygenator.2.A strange clot pattern on the oxygenator.3.Pump makes strange noises at times.We have now experienced this on multiple occasions when utilized with the spectrum medical pump.All circuits had an extremely high delta p (>100 mmhg) prior to changing out.I am in the process of gathering data to learn more.The customer shared that they feel this is a spectrum issue (non getinge product) and that she was not planning to report this as a complaint to us.Additional event information was requested at the customer and no reply / additional information was received despite several attempts.A product for technical laboratory investigation was not returned by the customer.A lot or serial number of the product(s) was not provided, thus a device history record review was not possible.Thus a confirmation of the reported failure "extremely high delta p" & "clot pattern on the oxygenator" was not possible.The exact root cause of the reported event remains unknown.According to the risk file following root cause can lead to the reported failure: no anticoagulation or insufficient anticoagulation causes occlusion of the extracorporeal circulation and the patient circuit.This can lead to inadequate patient support, hemolysis or thrombus formation in the patient.Weigh the benefits of extracorporeal circulation against the risk of systemic anticoagulation.Use anticoagulants; e.G.Heparin or argatroban.Check the effect of anticoagulants at regular intervals by measuring the act (activated clotting time).Ensure that the act value does not fall below the value which is appropriate for the application.Check the coagulation status of the patient's blood regularly.The protocol for coagulation management is the responsibility of the user in charge.The occurrence rate was calculated for the reported issue and it was determined that this is not a systemic issue.Therefore, no remedial action is required.The occurrence rate related to the reported issue is currently being monitored as part of maquet cardiopulmonary¿s trending program and additional investigations or corrections will be implemented in case of adverse trending.
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