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
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, ClassifiedThe 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 · TerminatedVIGILANT 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 · TerminatedRESONATE X4 CRT-D, Model G447, Sterile.
- Z-0080-2018 · Oct 4, 2017 · TerminatedMOMENTUM X4 CRT-D, Model G138, Sterile.
- Z-1556-2010 · Mar 15, 2010 · TerminatedBoston 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 · TerminatedBoston 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 · TerminatedVITALITY 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 · TerminatedCONTAK 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 · TerminatedVITALITY 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 · TerminatedVITALITY 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 · TerminatedVITALITY 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 · TerminatedCONTAK 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 · TerminatedGuidant 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 · TerminatedGuidant 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 · TerminatedGuidant 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
- Assurity MRI™ PM2272St. Jude Medical, Inc. · Implantable pulse generator, pacemaker (non-CRT)1 recall264 deaths16,996 reports
- ACCOLADE™ MRI EL DR L331Boston Scientific Corporation · Implantable pulse generator, pacemaker (non-CRT)2 recalls22 deaths7,984 reports
- Azure™ XT DR MRI SureScan™ W1DR01Medtronic, Inc. · Implantable pulse generator, pacemaker (non-CRT)187 deaths7,655 reports
- ACCOLADE™ MRI DR L311Boston Scientific Corporation · Implantable pulse generator, pacemaker (non-CRT)2 recalls59 deaths7,283 reports
- Azure™ XT DR MRI SureScan™ W1DR01Medtronic, Inc. · Implantable pulse generator, pacemaker (non-CRT)107 deaths5,971 reports
- ACCOLADE™ DR L301Boston Scientific Corporation · Implantable pulse generator, pacemaker (non-CRT)2 recalls6 deaths2,513 reports
- ACCOLADE™ EL DR L321Boston Scientific Corporation · Implantable pulse generator, pacemaker (non-CRT)2 recalls2 deaths1,906 reports
- ACUITY™ X4 Spiral S 4674Boston Scientific Corporation · Implantable pulse generator, pacemaker (non-CRT)16 deaths1,975 reports
Sources and updates
- Device record: FDA GUDID, file dated Oct 13, 2026 · View this device in AccessGUDID ↗
- Adverse event reports: FDA MAUDE, file dated Oct 14, 2026 · each report above links to its original FDA record
- Recalls: FDA Medical Device Recalls, file dated Oct 16, 2026
- Page last rebuilt: Oct 16, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
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