Investigation/evaluation a review of documentation, instructions for use (ifu), interview of personnel, and specifications was conducted during the investigation.The complaint device was not returned; therefore, device failure analysis and physical examination of the device used in this case could not be performed.A device history record review could not be performed as the complaint lot number was not provided.Additionally, it could not be determined if additional complaints from the same lot have been reported.A document-based investigation evaluation showed no evidence to suggest the product was not made to specifications.One of the doctors involved in this study and the first author on the paper was interviewed in regard to this instance.Based on the interview and the published study results, it was concluded that the device did not cause or contribute to the patient fistula.The doctor also stated that there was no difficulty in the insertion of the drain and that the product did not malfunction in any way.It is common for bile duct fistulas to be caused by gallstones which is a possible root cause in this case.It is also very likely that the bile duct fistula formation is related to the progression of liver cancer in the patient.Due to the lack of device involvement in the failure mode described, this complaint is considered unconfirmed.We will notify the appropriate personnel and continue to monitor for similar complaints.
|