The subject device was not returned to olympus medical systems corp.(omsc) for evaluation.Therefore, the exact cause of the reported event could not be conclusively determined.Since the serial number is unknown, the device history record could not be reviewed.However, omsc has only shipped devices that passed the inspection.In the literature, there is no description of the device's malfunction.
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Olympus medical systems corp.(omsc) received a literature titled "evaluation of the safety and efficacy of minimal endoscopic sphincterotomy followed by papillary balloon dilation for the removal of common bile duct stones".The literature reported the result of 435 patients with mediastinal and hilar lymphadenopathy who underwent endobronchial ultrasound-guided transbronchial needle aspiration (ebus-tbna) procedure using the olympus na-201sx-4022 from may 2010 to july 2012.In the literature, it was reported complication as follows; fever after ebus-tbna (110 cases).Blood culture samples positive (2 cases): the identified organism was normal flora of the skin and there was no true bacteremia.Pneumonia (2 cases).Mediastinal abscess (1 case): a (b)(6) female patient with underlying diabetes mellitus developed fever 3 days after the procedure, at which time she was diagnosed with mediastinal abscess.After 7 days of antibiotic therapy, the patient became afebrile.The patient was successfully treated with antibiotics for 6 weeks.Omsc assumes that the mediastinal abscess was a serious injury due to the required 7days of antibiotic therapy.There are not mentioned that these complications were related to the subject device in question.However, omsc assumes that "mediastinal abscess" might be related to "na-201sx-4022" due to the procedure using "na-201sx-4022".Based on the available information, specific information on the subject device and the patients were not provided.There is no description of the device's malfunction.Therefore, omsc assumes that the "mediastinal abscess" was adverse events to submit due to the required 7days of antibiotic therapy.Omsc will submit a medical device report (mdr) of the subject device for the "mediastinal abscess".
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