MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ACUITY? X4 Straight; Implantable Lead

Model Number	4672
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Erosion (1750); Unspecified Infection (1930); Inflammation (1932); Pain (1994); Discomfort (2330); Fluid Discharge (2686); Swelling/ Edema (4577)
Date of Event	07/08/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that this left ventricular (lv) lead was part of a system revision due to infection and erosion.Reportedly, the patient experienced discomfort, pain, edema, inflammation, swelling and fluid discharge.There were no additional adverse patient effects reported.The lv lead was explanted.

• Brand Name: ACUITY? X4 Straight
• Common Device Name: Implantable Lead
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): Boston Scientific Corporation; road 698, lot no. 12; dorado PR 00646 -260; PR 00646-2602
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; +1(651)582-6168
• MDR Report Key: 50059231
• Report Number: 2124215-2026-40399
• Device Sequence Number: 10687353
• Product Code: LWP
• UDI-Device Identifier: 00802526524530
• UDI-Public: (01)00802526524530(17)280324
• Combination Product (Y/N): Y
• Initial Reporter State: ID
• Initial Reporter Country: US
• PMA/510(K) Number: P010012
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2026
• Device Explanted Year: 2026
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 07/28/2026

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
• Operator of Device: Lay User/Patient
• Device Model Number: 4672
• Device Catalogue Number: 4672
• Device Lot Number: 832045
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/08/2026
• Initial Report FDA Received Date: 07/28/2026
• Date Device Manufactured: 03/25/2026
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Age: 79 YR
• Patient Sex: Male