Long-Term Follow Up of Ventricular Endocardial Pacing Leads. Complications, Electrical Performance, and Longevity of 561 Right Ventricular Leads.

Kazama, Shigeru; Nishiyama, Kouichiro; Machii, Masato; Tanaka, Katsuhiko; Amano, Toyoki; Nomura, Tomokiyo; Ohuchi, Motofumi; Kasahara, Shingo; Nie, Masaki; Ishihara, Akira

doi:10.1536/ihj.34.193

Cited by 37 publications

(18 citation statements)

References 13 publications

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“…Two previous studies reported lead dislodgement in 33 and 10% of dogs, 1,2 whereas the reported rate of lead dislodgement in humans is 0.5 to 2.9%. 11,15,16 One explanation for this disparity is the lower level of experience of veterinary cardiologists compared with human cardiologists who implant APs. A second factor in the higher rate of lead dislodgement in dogs may be their greater movement during anesthetic recovery and increased activity level in the days after implantation (when most dislodgments occur) compared with humans.…”

Section: Complicationsmentioning

confidence: 99%

Applications, Complications, and Outcomes of Transvenous Pacemaker Implantation in 105 Dogs (1997–2002)

Wess

Thomas

Berger

et al. 2006

Veterinary Internal Medicne

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We reviewed the indications for age and breeds of dogs who received transvenous endocardial artificial pacemaker (AP) implantation (n 5 105) and complications and survival thereafter at a single institution over a 6-year period. A third-degree atrioventricular (AV) block (59%) and sick sinus syndrome (SSS; 27%) were the most common indications, along with a highgrade second-degree AV block (9%) and atrial standstill (5%). The most common breeds identified were Labrador Retriever (n 5 16; 11 with a third-degree AV block), American Cocker Spaniel (n 5 14; 10 with SSS), and Miniature Schnauzer (n 5 13; all with SSS). Common presenting complaints were syncope (n 5 66) and exercise intolerance or lethargy (n 5 25). Half of the dogs (n 5 52) had a history of acute onset of clinical signs (,2 weeks). Mean survival time for the 60 dogs who died during the study period was 2.2 years (range, 0.1-5.8 years). Major complications occurred in 13% of dogs and included lead displacement (n 5 7), sensing problems that led to syncope (n 5 3), infection at the pacemaker site (n 5 1), bleeding (n 5 1), and ventricular fibrillation during implantation (n 5 1; successfully defibrillated). Minor complications occurred in 11 dogs (11%). The success rate of transvenous AP implantation was comparatively high (all dogs survived the first 48 hours), and the complication rate was comparatively low when compared with a previous multicenter study, most likely because of how commonly the procedure was performed and supervisory experience.

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Section: Complicationsmentioning

confidence: 99%

Applications, Complications, and Outcomes of Transvenous Pacemaker Implantation in 105 Dogs (1997–2002)

Wess

Thomas

Berger

et al. 2006

Veterinary Internal Medicne

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“…We found it difficult to compare our results to those of previously discussed studies because some of the authors did not state lead implantation approach, whereas the others who applied subclavian puncture used nonresorptive suture for fixation, which was an additional stress factor for lead failure 24 …”

Section: Discussionmentioning

confidence: 75%

Permanent Endovenous Pediatric Pacing: Absence of Lead Failure—20 Years Follow‐Up Study

Stojanov¹,

Savić²,

Zivkovic³

et al. 2008

Pacing Clinical Electrophis

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“…The performance of early cardiac pacing lead systems was traditionally characterized based on hundreds of patient follow-ups over many years [39]. These studies collected information in terms of electrical performance, number of complications and overall longevity.…”

Section: Discussionmentioning

confidence: 99%

Mechanical fatigue resistance of an implantable branched lead system for a distributed set of longitudinal intrafascicular electrodes

et al. 2017

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Objective A neural interface system has been developed that consists of an implantable stimulator/recorder can with a 15-electrode lead that trifurcates into three bundles of five individual wire longitudinal intrafascicular electrodes. This work evaluated the mechanical fatigue resistance of the branched lead and distributed electrode system under conditions designed to mimic anticipated strain profiles that would be observed after implantation in the human upper arm. Approach Custom test setups and procedures were developed to apply linear or angular strain at four critical stress riser points on the lead and electrode system. Each test was performed to evaluate fatigue under a high repetition/low amplitude paradigm designed to test the effects of arm movement on the leads during activities such as walking, or under a low repetition/high amplitude paradigm designed to test the effects of more strenuous upper arm activities. The tests were performed on representative samples of the implantable lead system for human use. The specimens were fabricated using procedures equivalent to those that will be used during production of human-use implants. Electrical and visual inspections of all test specimens were performed before and after the testing procedures to assess lead integrity. Main Results Measurements obtained before and after applying repetitive strain indicated that all test specimens retained electrical continuity and that electrical impedance remained well below pre-specified thresholds for detection of breakage. Visual inspection under a microscope at 10X magnification did not reveal any signs of damage to the wires or silicone sheathing at the stress riser points. Significance These results demonstrate that the branched lead of this implantable neural interface system has sufficient mechanical fatigue resistance to withstand strain profiles anticipated when the system is implanted in an arm. The novel test setups and paradigms may be useful in testing other lead systems.

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Long-Term Follow Up of Ventricular Endocardial Pacing Leads. Complications, Electrical Performance, and Longevity of 561 Right Ventricular Leads.

Cited by 37 publications

References 13 publications

Applications, Complications, and Outcomes of Transvenous Pacemaker Implantation in 105 Dogs (1997–2002)

Applications, Complications, and Outcomes of Transvenous Pacemaker Implantation in 105 Dogs (1997–2002)

Permanent Endovenous Pediatric Pacing: Absence of Lead Failure—20 Years Follow‐Up Study

Mechanical fatigue resistance of an implantable branched lead system for a distributed set of longitudinal intrafascicular electrodes

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