MAUDE Adverse Event Report: ON-X LIFE TECHNOLOGIES, INC. ON-X PROSTHETIC HEART VALVE; HEART-VALVE, MECHANICAL

Model Number UNKNOWN

Device Problem Adverse Event Without Identified Device or Use Problem (2993)

Patient Problems Arrhythmia (1721); No Code Available (3191)

Event Type  Injury  

Manufacturer Narrative

This study is multicenter and retrospective.The implants were standard mechanical valve implant procedures and data was collected post-operatively for events occurring within 14 days of surgery.  the implant procedure was conducted sometime between 2013 and (b)(6) 2018; the date of implant and valve-specific information is unknown.  the reported event was collected retrospectively and not indicative of a real-time event occurring with the use of the on-x valve.

this investigation is currently ongoing.  any additional information will be provided in the follow-up report. .

Event Description

As reported in the on-x prosthetic heart valve anatomic suture ring post-market study, this patient experienced an event -pacemaker implant within 14 days post operatively per study protocol.This is a reportable valve-related adverse event per aats/sts guidelines.This study is multicenter and retrospective.The implants were standard mechanical valve implant procedures and data was collected post-operatively for events occurring within 14 days of surgery.The implant procedure was conducted sometime between 2013 and (b)(6) 2018; the date of implant and valve-specific information is unknown.The reported event was collected retrospectively and not indicative of a real-time event occurring with the use of the on-x valve.

Event Description

As reported in the on-x prosthetic heart valve anatomic suture ring post-market study, this patient experienced an event -pacemaker implant within 14 days post operatively per study protocol.This is a reportable valve-related adverse event per aats/sts guidelines.This study is multicenter and retrospective.The implants were standard mechanical valve implant procedures and data was collected post-operatively for events occurring within 14 days of surgery.The implant procedure was conducted sometime between 2013 and 04/30/2018; the date of implant and valve-specific information is unknown.The reported event was collected retrospectively and not indicative of a real-time event occurring with the use of the on-x valve.

Manufacturer Narrative

A review of the available information of the on-x prosthetic heart valve anatomic suture ring post-market study was performed.The purpose of the study is to assess the rate of occurrence of permanent pacemaker implantation within 14 days of surgery with on-x prosthetic heart valve with anatomic sewing ring when used to replace diseased aortic valves in human subjects through the use of a retrospective registry.The protocol for this study is as follows: this study is multicenter and retrospective.All centers will follow a common protocol in which eligible patients will be entered into the registry after the 14th postoperative day.No procedures will be done and only retrospective data covering the preoperative, operative and the first 2 weeks postop will be collected.The valve safety primary endpoint is "occurrence of permanent pacemaker implantation within 14 days of surgery as a valve-related adverse event per the definitions of the american association for thoracic surgery/society of thoracic surgeons (aats/sts) guidelines." the valve safety secondary endpoint is "occurrence of other valve-related adverse events within 14 days of surgery per the definitions of the aats/sts guidelines." per the information available to us, this study began in 2013.The study was closed out 04/30/2018 and we are now becoming aware of the primary and secondary endpoints reported by all of the centers.For each event, the date of implant, date of event, and valve-identifying information is unknown.We do not have any demographic information on this patient.However, he/she was the recipient of a permanent pacemaker (ppm), and since the observational window is 14 days postoperatively, it would be classified as a major adverse valve-related event per the aats/sts criteria [akins 2008].No other information is available after this observation and so we have no further indications supporting the decision to implant the ppm.In any case, the instructions for use (ifu) recognize arrhythmia and the possibility of subsequent reoperation as potential adverse events following aortic valve replacement (avr) [ifu].Arrhythmia and reoperation are recognized potential complications following aortic valve replacement surgery, but there is not enough detailed information to establish a root cause.However, per aats/sts guidelines, this is classified as a major valve-related adverse event.No further action is required at this time.This report is being submitted as required by federal regulations and does not constitute an admission that the device caused or contributed to the reported event.Furthermore, this report reflects the event as alleged by the complainant and does not imply that the information reported to cryolife is accurate or has been confirmed by cryolife.

• Brand Name: ON-X PROSTHETIC HEART VALVE
• Type of Device: HEART-VALVE, MECHANICAL
• Manufacturer (Section D): ON-X LIFE TECHNOLOGIES, INC.; 1300 e. anderson ln., bldg. b; austin TX 78752
• MDR Report Key: 7550588
• MDR Text Key: 109454137
• Report Number: 1649833-2018-00074
• Device Sequence Number: 1
• Product Code: LWQ
• Combination Product (y/n): N
• PMA/PMN Number: P000037
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: study
• Type of Report: Initial,Followup
• Report Date: 08/10/2018

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 05/29/2018
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Device Operator: Physician
• Device Model Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Distributor Facility Aware Date: 04/30/2018
• Date Manufacturer Received: 04/30/2018
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1
• Patient Outcome(s): Hospitalization; Other