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ACUITY™ X4 Straight 4671Recalls & reported problems

Boston Scientific Corporation · Pace/Sense Lead · Class 3 · Implant

All models of ACUITY X4 Straight (2)

Data updated Oct 16, 2026 from official FDA records · Editorial policy

Quick summary

This Boston Scientific Acuity X4 pacing lead has 1,864 adverse event reports on record, including 5 deaths and 1,369 injuries. Many reports describe the lead moving out of place, failing to make the heart respond, or needing a higher electrical signal, and many patients had infections, with some reports describing the lead being removed. No recalls name this device.

AI-generated from the FDA records on this page and checked automatically against the numbers below. Read the details before relying on it.

Adverse event reports
1,875
Deaths reported
5
Injuries reported
1,374
Recalls naming it
0

Summary

The FDA's MAUDE database contains 1,875 adverse event reports that list this exact device (DI 00802526524516), received between Apr 11, 2017 and Sep 28, 2026 — classified as 5 deaths, 1,374 injuries, 496 malfunctions.

The most frequently reported specific device problem is “Device Dislodged or Dislocated” (381 reports).

19 other recalls cover devices cleared under the same FDA submission (P010012); they may or may not involve this specific model.

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 16, 2026.

Reports received per month

Nov 2023: 25 reportsDec 2023: 13 reportsJan 2024: 22 reportsFeb 2024: 14 reportsMar 2024: 23 reportsApr 2024: 32 reportsMay 2024: 15 reportsJun 2024: 18 reportsJul 2024: 19 reportsAug 2024: 23 reportsSep 2024: 17 reportsOct 2024: 20 reportsNov 2024: 25 reportsDec 2024: 18 reportsJan 2025: 14 reportsFeb 2025: 20 reportsMar 2025: 17 reportsApr 2025: 10 reportsMay 2025: 28 reportsJun 2025: 25 reportsJul 2025: 16 reportsAug 2025: 32 reportsSep 2025: 12 reportsOct 2025: 23 reportsNov 2025: 17 reportsDec 2025: 22 reportsJan 2026: 20 reportsFeb 2026: 18 reportsMar 2026: 13 reportsApr 2026: 14 reportsMay 2026: 17 reportsJun 2026: 21 reportsJul 2026: 19 reportsAug 2026: 15 reportsSep 2026: 10 reportsOct 2026: 0 reports20242025202632
Last 36 months. The most recent month may be incomplete.

Most reported problems

Device problems

  • Adverse Event Without Identified Device or Use Problem734
  • Device Dislodged or Dislocated381
  • Failure to Capture307
  • High Capture Threshold247
  • High impedance144
  • Extracardiac stimulation92
  • Defective Device89
  • No Apparent Adverse Event84

Patient problems

  • No Clinical Signs, Symptoms or Conditions692
  • Unspecified Infection631
  • Sepsis171
  • No Known Impact Or Consequence To Patient148
  • No Code Available132
  • No Consequences Or Impact To Patient110
  • Device Overstimulation of Tissue106
  • Muscle Stimulation73

Recent adverse event reports

The 25 most recent of 1,875 reports, in the reporter's own words as published by the FDA.

  • MalfunctionSep 28, 2026Failure to Capture; Low impedance; High Capture Threshold

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50924759 ↗
  • InjurySep 28, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this left ventricular (LV) lead was part of a system revision due to infection. There were no additional adverse patient effects reported. The LV lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50918985 ↗
  • InjurySep 24, 2026High Capture Threshold

    It was reported that the patient exhibited a high left ventricular (LV) pacing threshold. This will be addressed when the system review takes place. No adverse patient effects were reported.Additional information from the field representative indicates that this left ventricular (LV) lead was explanted. A new lead was successfully implanted. No additional adverse patient effects were reported.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50885203 ↗
  • InjurySep 23, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this implantable lead was part of the system revision due to infection. No adverse patient effects were reported. The implantable lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50865758 ↗
  • InjurySep 4, 2026Device Dislodged or Dislocated

    It was reported that this left ventricular (LV) lead exhibited dislodgement following implantation. Subsequently, the lead was explanted and replaced. No additional adverse patient effects were reported.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50602273 ↗
  • InjurySep 4, 2026High Capture Threshold

    It was reported that this left ventricular (LV) lead was capped due to high capture thresholds. A new LV lead was implanted. No additional adverse patient effects were reported.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50602147 ↗
  • InjurySep 4, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this left ventricular (LV) lead was part of a system revision due to infection. There were no additional adverse patient effects reported. This LV lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50601346 ↗
  • MalfunctionSep 4, 2026Failure to Capture

    It was reported that the health care professional (HCP) called Technical Services (TS) for further review of the presenting electrogram (EGM) due to concerns of loss of capture (LOC) on the left ventricular (LV) lead. Upon review, intermittent loss of capture (LOC) on the LV lead was observed. The HCP stated plans to schedule patient for an in clinic visit for further lead evaluation. No adverse patient effects were reported. This LV lead remains in service.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50601332 ↗
  • InjurySep 3, 2026Adverse Event Without Identified Device or Use Problem

    Patient problems: Unspecified Infection

    MAUDE report 50599859 ↗
  • InjurySep 2, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this left ventricular (LV) lead had exhibited infection due to infected breast implant. As of this time, this LV lead remains in service. There was no additional adverse patient effects reported.

    Patient problems: Unspecified Infection

    MAUDE report 50566536 ↗
  • MalfunctionAug 24, 2026Failure to Capture; Low impedance; High Capture Threshold

    Patient problems: Device Overstimulation of Tissue; Discomfort; No Clinical Signs, Symptoms or Conditions

    MAUDE report 50416014 ↗
  • InjuryAug 22, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this implantable lead was part of the system revision due to infection. No adverse patient effects were reported. The implantable lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50385660 ↗
  • InjuryAug 21, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this implantable lead was part of the system revision due to infection. No adverse patient effects were reported. The implantable lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50368194 ↗
  • InjuryAug 20, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this implantable lead was part of the system revision due to infection. No adverse patient effects were reported. The implantable lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50341416 ↗
  • InjuryAug 18, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this left ventricular (LV) lead exhibited intermittent phrenic nerve stimulation. The patient felt the stimulation during tests and when sitting up in a chair. The patient underwent a medical intervention to surgically abandon the lead and implant a new left bundle branch (LBB) lead. No additional adverse patient effects were reported.

    Patient problems: Device Overstimulation of Tissue

    MAUDE report 50306526 ↗
  • InjuryAug 18, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this implantable lead was part of the system revision due to infection. The patient received a temporary pacing device. No adverse patient effects were reported. The implantable lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50297049 ↗
  • InjuryAug 18, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this implantable lead was part of the system revision due to infection. No adverse patient effects were reported. The implantable lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50295717 ↗
  • MalfunctionAug 18, 2026Low impedance

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50293548 ↗
  • MalfunctionAug 17, 2026Positioning Problem; Insufficient Device Problem Information

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50270025 ↗
  • InjuryAug 14, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this left ventricular (LV) lead was part of a system revision due to infection. There was no additional adverse patient effects reported. The LV lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50263481 ↗
  • InjuryAug 13, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this implantable lead was part of the system revision due to infection. No adverse patient effects were reported. The implantable lead was explanted.

    Patient problems: Unspecified Infection

    MAUDE report 50231050 ↗
  • MalfunctionAug 11, 2026Failure to Capture

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50216474 ↗
  • InjuryAug 11, 2026Adverse Event Without Identified Device or Use Problem

    It was reported that this left ventricular (LV) lead was part of a system revision due to infection and pocket erosion. There were no additional adverse patient effects reported. The LV lead was explanted.

    Patient problems: Pocket Erosion; Unspecified Infection

    MAUDE report 50214672 ↗
  • InjuryAug 11, 2026Failure to Capture; Over-Sensing

    It was reported that this left ventricular (LV) lead exhibited oversensing of atrial activity. During in-clinic evaluation, atrial oversensing on the left ventricular (LV) lead. LV sensing was turned off. Intermittent LV loss of capture was also observed. This lead remains in service. No adverse patient effects were reported.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50213578 ↗
  • MalfunctionAug 11, 2026Insufficient Device Problem Information

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 50201448 ↗

Recalls under the same FDA submission

These recalls involve devices cleared under P010012. One submission often covers many models, so check the product and lot details in each record.

  • Z-1671-2022 · Jul 7, 2022 · Open, Classified
    The PRM is intended to be used as part of the ZOOM LATITUDE Programming System to communicate with Boston Scientific implantable pulse generators. The software in use controls all
  • Z-0079-2018 · Oct 4, 2017 · Terminated
    VIGILANT X4 CRT-D, Model G247, Sterile. Cardiac Resynchronization Therapy Defibrillators (CRT-Ds) are indicated for patients with heart failure who receive stable optimal pharma
  • Z-0081-2018 · Oct 4, 2017 · Terminated
    RESONATE X4 CRT-D, Model G447, Sterile.
  • Z-0080-2018 · Oct 4, 2017 · Terminated
    MOMENTUM X4 CRT-D, Model G138, Sterile.
  • Z-1556-2010 · Mar 15, 2010 · Terminated
    Boston Scientific LIVIAN Cardiac Resynchronization Therapy Defibrillator (CRT-D), models H220, H225, H227, H229. The LIVIAN family of cardiac resynchronization therapy defibrillat
  • Z-0609-2010 · Dec 1, 2009 · Terminated
    Boston Scientific COGNIS CRT-D, Cardiac Resynchronization Therapy Defibrillator, models N118, N119. the following models are not available in the US: models N106, N107, P106, P107,
  • Z-1053-2007 · Mar 23, 2007 · Terminated
    VITALITY 2 (model T165, T175), VITALITY DS (model T125, T135), VITALITY EL (model T127), Implantable Cardioverter Defibrillators (ICD), are designed to detect and terminate ventric
  • Z-1049-2007 · Mar 23, 2007 · Terminated
    CONTAK RENEWAL 3 RF (model H210, H215), CONTAK RENEWAL 3 RF HE (model H217, H219) cardiac resynchronization therapy defibrillator (CRT-D).
  • Z-1055-2007 · Mar 23, 2007 · Terminated
    VITALITY 2 EL DR/VR (model T167, T177). contents have been sterilized with gaseous ethylene oxide. The Guidant Vitality 2 ICD, implantable cardioverter defibrillators, are design
  • Z-1052-2007 · Mar 23, 2007 · Terminated
    VITALITY AVT (model A155). Implantable Cardioverter Defibrillator. Atrial and Ventricular Therapies. Guidant Corporation Cardiac Rhythm Management, 4100 Hamline Avenue North, St. P
  • Z-1054-2007 · Mar 23, 2007 · Terminated
    VITALITY DR HE Implantable Cardioverter Defibrillator (model T180). Sterile EO. Guidant Corporation, Cardiac Rhythm Management, 4100 Hamline Avenue North, St. Paul, MN 55112-5798 U
  • Z-1047-2007 · Mar 23, 2007 · Terminated
    CONTAK RENEWAL 3 (model H170, H175) CONTAK RENEWAL 3 HE (model H177, H179) Cardiac Resynchronization Therapy Defibrillator (CRT-D). Guidant Corporation, 4100 Hamline Avenue North,
  • Z-0047-2008 · Mar 16, 2007 · Terminated
    Guidant VITALITY VR/DR, Implantable Cardioverter Defibrillator, ICD, Models 1870 and 1871. Guidant VITALITY DR+, Implantable Cardioverter Defibrillator, ICD, Model 1872.
  • Z-1288-06 · May 15, 2006 · Terminated
    Guidant CONTAK RENEWAL 3 (models H170, H175) CONTAK RENEWAL 3 HE (models H177, H179) Cardiac Resynchronization Therapy Defibrillator (CRT-D). Guidant Corporation, 4100 Hamline Ave
  • Z-0827-06 · Apr 7, 2006 · Terminated
    Guidant CONTAK RENEWAL 4 AVT (model M170). Cardiac Resynchronization Therapy Defibrillator (CRT-D). Sterile EO. Guidant Corporation, 4100 Hamline Avenue North, St. Paul, MN 55

…and 4 more.

Other Implantable pulse generator, pacemaker (non-CRT) devices

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Sources and updates

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