The results of the investigation are inconclusive since the device was not returned for analysis.Review of the device history record was not possible as the lot number is unknown.Based on the information received, the cause of the reported incident could not be conclusively determined.Per the ifu, cardiac perforation is a known risk during the use of this device.
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The following event was found during a search of the maude database performed on 29 april 2020, report number: 2029046-2019-03939: it was reported that a female patient underwent a persistent atrial fibrillation ablation procedure with a thermocool® smart touch® sf bi-directional navigation catheter and suffered cardiac tamponade requiring pericardiocentesis and surgical intervention, thrombosis and tachycardia.During the procedure, during the transseptal phase, the attending and the fellow had completed first transseptal puncture, with the ablation catheter across and were working on getting the second transseptal puncture.The physician and fellow were working strictly with an intracardiac echocardiogram (ice) to achieve the transseptal puncture.While working through multiple ice views with the second transseptal needle, the physician postulated that he saw a view in which the needle had jumped into the right atrial appendage and that is where the potential perforation happened.The attending immediately noticed a severe drop in heart rate (down to 28 bpm) with accompanying hypotension.The fellow used the ice to confirm cardiac tamponade due to the pericardial effusion from accidental transseptal needle puncture.A pericardiocentesis was performed and 1500cc of fluid/blood was removed with about 1l reinfused back into the patient.The patient stabilized for about 30 minutes until the attending noticed what looked like a large clot swirling around in the right atrium.Shortly after, the patient's heart rate went tachycardic and blood pressure dropped.The decision was made to get the patient to cardiac surgery for puncture repair following this further complication.The puncture was discovered in the right ventricle, where a few stitches were placed to close the hole.The patient was hospitalized for about a week post-surgical intervention before being discharged.Their condition has improved.Patient has a history of stroke prior to procedure.A transesophageal echocardiogram was performed before the procedure and there was no evidence of clots or prior effusion.Transseptal puncture was performed with a 71 cm brk needle manufactured by abbott.No ablation had been performed prior to the cardiac tamponade.The cardiac tamponade event was related to use of the transseptal needle.The puncture was discovered in the right ventricle where no product was used specifically.
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