MAUDE Adverse Event Report: ENDOLOGIX AFX; BIFURCATED STENT GRAFT

Model Number BA28-100/I20-40

Device Problems Collapse (1099); Material Puncture/Hole (1504); Insufficient Information (3190)

Patient Problems Aneurysm (1708); Failure of Implant (1924); Pain (1994)

Event Date 10/11/2021

Event Type  Injury  

Manufacturer Narrative

The devices involved in this event will not be returned for evaluation and remain implanted in the patient.Patient medical records and imaging studies will be requested for further evaluation by a clinical specialist.If additional information pertinent to the incident is obtained, a follow-up report will be submitted.Device iteration is afx with duraply.

Event Description

The patient was initially treated for an abdominal aortic aneurysm (aaa) with implant of an afx bifurcated stent graft and an afx vela suprarenal.Approximately six (6) years and five (5) months post initial procedure, the patient presented emergently with right flank pain.Aneurysm enlargement and a possible type iiia endoleak were identified.Patient is currently in the hospital for a gastrointestinal (gi) bleed.After the gi bleed has been fixed a reintervention will be performed to re-line aneurysm enlargement and a possible type iiia endoleak.

Event Description

The patient was initially treated for an abdominal aortic aneurysm (aaa) with implant of an afx bifurcated stent graft and an afx vela suprarenal.Approximately six (6) years and five (5) months post initial procedure, the patient presented emergently with right flank pain.Aneurysm enlargement and a possible type iiia endoleak were identified.Patient is currently in the hospital for a gastrointestinal (gi) bleed.After the gi bleed has been fixed a reintervention will be performed to re-line aneurysm enlargement and a possible type iiia endoleak.Subsequent to the initial report, additional information was provided reporting that the patient underwent coiling to treat the type ii endoleak.Additionally, clinical assessment determined that there was evidence to reasonably suggest buckling of the distal bifurcated stent graft occurred that was not included in the event as reported.The buckling was discovered during review of the 78 month post-implant ct scan.

Manufacturer Narrative

The reported adverse event/incident was investigated in alignment with endologix operating procedures and work instructions.Where possible, it is endologix practice to make at least three good faith efforts to retrieve a reported adverse event/incident related device as well as medical records and medical imaging.An evaluation of the manufacturing record was completed.A review of the part number/lot number combination needed for device identification shows the device to have been properly manufactured and released in accordance with the device master record.An evaluation of the device could not be completed.The device was not returned to endologix for evaluation because it remains implanted.A clinical evaluation of the adverse event/incident was completed.An examination of medical records and/or medical imaging received by endologix shows the type iiia endoleak adverse event/incident is refuted, rather there was a type iiib endoleak of the distal bifurcated stent graft.The sac growth of 34.5mm adverse event/incident is confirmed.The type ii endoleak of the internal mesenteric and lumbar artery adverse event/incident is confirmed.This is moderately consistent with the reported adverse event/incident.The clinical evaluation also shows reasonable evidence to suggest buckling of the distal bifurcated stent graft occurred that was not included in the event as reported.These findings were discovered during an examination of the 78-month post implant ct scan.The most likely causation for type iiib endoleak is the distal buckling of the bifurcated stent graft in a 40-degree angulation.The most likely causation for the type ii endoleak is anatomy related.The final patient status was reported as being discharged on the fifth post-operative day following a secondary endovascular procedure (ima coiling).No additional investigation of this reported adverse event/incident is planned.However, should additional information relevant to the investigation outcome become available, a follow-up report will be submitted.Endologix will continue to monitor this and similar adverse events/incidents.Device iteration is afx with duraply.B2: outcomes attributed to adverse event ¿ updated b5: describe event or problem - updated g3: awareness date ¿ updated h6: medical device problem codes ¿ remove 3190 h6: investigation finding codes: remove code 3233 h6: investigation conclusion codes: remove code 11.

• Brand Name: AFX
• Type of Device: BIFURCATED STENT GRAFT
• Manufacturer (Section D): ENDOLOGIX; 2 musick; irvine CA 92618
• Manufacturer (Section G): ENDOLOGIX; 2 musick; ,; irvine CA 92618
• Manufacturer Contact: gary kirchgater ; 2 musick; ,; irvine, CA 92618 ; 8009832284
• MDR Report Key: 12668840
• MDR Text Key: 278422945
• Report Number: 2031527-2021-00441
• Device Sequence Number: 1
• Product Code: MIH
• UDI-Device Identifier: 00818009014207
• UDI-Public: (01)00818009014207(17)171103
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: P040002
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Health Professional,Company Representative
• Reporter Occupation: Physician
• Remedial Action: Recall
• Type of Report: Initial,Followup
• Report Date: 10/11/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Health Professional
• Device Expiration Date: 11/03/2017
• Device Model Number: BA28-100/I20-40
• Device Lot Number: 1284146-014
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Initial Date Manufacturer Received: 10/11/2021
• Initial Date FDA Received: 10/20/2021
• Supplement Dates Manufacturer Received: 12/13/2021
• Supplement Dates FDA Received: 12/28/2021
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 11/18/2014
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Removal/Correction Number: Z-0006-2019
• Patient Sequence Number: 1
• Treatment: AFX VELA SUPRARENAL (LN 1252463005)
• Patient Outcome(s): Other; Required Intervention
• Patient Age: 90 YR
• Patient Sex: Male