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A healthcare professional reported that, following cataract surgery with intraocular lens (iol) implantation using the ophthalmic operating system, the female elderly patient was diagnosed with endophthalmitis post surgery.The scheduled cataract surgery was completed on the same day.The patient was treated with an intravitreal antibiotic injection.The current health state was not fully known yet, since they were treated in other hospitals.The female patient involved in this report already got out of the hospital and was doing better.Additional information has been requested, but none has been received to date.This report is pertaining three of six patients reported from the same facility.This report also pertains to cassette involved in reported events.
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Additional information provided in h.6.And h.11.No product has been returned to the investigation site for evaluation; therefore, the condition of the product could not be verified.Receipt of complaint product or additional information pertinent to this complaint will result in re-evaluation of the complaint investigation.There are multiple factors that could contribute to the occurrence of reported event.A patient¿s ocular flora or microorganisms that have colonized the surface structures (eyelids and conjunctiva) are the usual cause of infection, therefore isolating eyelids and eyelashes from the surgical field is crucial.The most common cultured microorganisms are gram-positive coagulase negative cocci (70%) with staphylococcus epidermis (s.Epidermis) the most prevalent.Deoxyribonucleic acid (dna) analyses of s.Epidermis strongly suggest that it is likely that commensal bacterial contaminating the anterior chamber at the time of surgery are responsible for most cases of endophthalmitis.According to the european society of cataract and refractive surgeons (escrs) and other reputable ophthalmic organizations, the most accepted practice to prevent is the topical use of povidone iodine 5% in the conjunctival sac before surgery.Antibiotics used days before surgery has been shown to decrease the bacterial load at the time of surgery.Povidone-iodine solution has broad antibiotic activity and has been shown to significantly decrease conjunctival and perilimbal flora.Meticulous prepping and draping of the patient before surgery are important as well, to isolate the eyelids and lashes from the surgical field.Finally, attempts should be made to decrease any postoperative patient risk factors, such as immunosuppression or systemic disorders that may affect the wound healing and the ability of the eye to ward off any inoculums of bacteria during cataract surgery.Intraoperative risk factors may be associated with an increased incidence of postoperative endophthalmitis.These include inadequate disinfection of the eyelid or conjunctiva, vitreous loss, or unplanned/unapparent ocular penetration.The system is a closed system.It is operated with a sterile single use consumable cassette which is designed to isolate the patient fluid path from the console itself.Any reusable surgical instrumentation (phaco handpiece) that would come into contact with the patient would be autoclaved by the user prior to surgery, per standard industry practices and the product directions for use (dfu).The phaco handpiece is a reusable device that must be reprocessed per the product dfu.There is no evidence that the design or performance of the system caused or contributed to this reported event of endophthalmitis.The investigation conducted a non-conformance review of the reported lot number.No deviations that could have contributed to this event were identified and all corresponding production release specifications defined in the device master record were met.The root cause of the customer's complaint could not be conclusively determined as product was not returned, and the condition of the product could not be verified.As the root cause and its origin are inconclusive, further investigation or manufacturing actions are not warranted at this time.Receipt of additional relevant information or supporting materials will prompt a re-evaluation of the complaint investigation.The root cause for this complaint is not known, therefore, specific action with regards to this complaint cannot be taken.Receipt of additional relevant information or supporting materials will prompt a re-evaluation of the complaint investigation.Complaint data for all company products is reviewed monthly to monitor for adverse trends.During the last review, no adverse trends were observed for the reported product and event combination.Quality assurance has reviewed this complaint and will continue to monitor data for evidence of adverse trending and take further action, as appropriate.No further action warranted at this time.The manufacturer internal reference number is: (b)(4).H.10 reflects all related report numbers associated with this product event that have been submitted at this time.
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