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Background: The Nanostim leadless pacemaker (LP) was launched in 2012. However, the use of Nanostim LP was suspended because of safety concerns.
Objective: The aim of this study was to report our experience with the management of malfunctioning Nanostim LPs, including premature battery depletion.
Methods: Fifty-one consecutive patients (mean age 83 ± 10 years; 65% male) who underwent Nanostim LP implantation between 2014 and 2016 at Isala Clinics were identified. Two patients were excluded from the analysis because of incomplete follow-up. The mean follow-up duration was 1114 ± 560 days.
Results: Nanostim LP malfunction occurred in 20 of 49 patients (40.8%). Premature LP battery failure was observed in 18 of 20 affected patients (90%). Furthermore, malpacing/malsensing was observed in 1 patient and mechanical dislocation of the Nanostim LP occurred in 1 patient. Of note, 17 of 18 Nanostim LPs with premature battery depletion (94%) showed normal device parameters 3 months before the diagnosis of (impending) premature battery failure. In 12 patients, Nanostim LPs with a mean device age at the time of extraction of 1040 ± 467 days was successfully extracted without complications. Implantation of another LP or a transvenous device was successfully performed in all 20 patients with Nanostim LP malfunction. All known cases of early-life battery failure were identified during the 3-monthly follow-up consultations.
Conclusion: The incidence of Nanostim LP early-life battery failure was higher than previously reported. Nanostim LP extraction in an older population seems to be safe and effective. Three-monthly follow-up seems to be effective at preventing in-between Nanostim LP-related hospitalization.
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http://dx.doi.org/10.1016/j.hrthm.2022.01.028 | DOI Listing |
ACS Nano
December 2024
State Key Laboratory of Heavy Oil Processing, School of Chemistry and Chemical Engineering, China University of Petroleum, Qingdao, Shandong 266580, China.
The unavoidable dendrite growth and side reactions are two major issues that lead to unsatisfactory cycling stability of the Zn metal anode and premature battery failure, which constrains the wide practical application of aqueous Zn-ion batteries. Herein, a bilayered zinc fluoride-indium interface-modified zinc anode (ZnF-In@Zn) is in situ-constructed to solve these two issues through a simple solution-dipping strategy. The outer ZnF layer assures sufficient desolvation of hydrated Zn and even Zn flux; meanwhile, the interior In layer further contributes to the uniform distribution of the electric field and lower energy barrier of Zn nucleation, achieving dendrite-free and side reaction-free Zn deposition.
View Article and Find Full Text PDFJ Am Chem Soc
December 2024
Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
Mechanical fatigue of the binders during the repeated volume change of Si-based anodes induces binder network collapse, resulting in lithium-ion batteries (LIBs) failing prematurely. Herein, we designed a damageless polymer binder with a mechanically interlocked network utilizing [n]daisy chains (MIN) and poly(acrylic acid) (PAA) to improve the structural cohesion of the Si-based anode. This MIN@PAA binder exhibits robust mechanical properties, high elasticity, and excellent adhesion.
View Article and Find Full Text PDFNano Lett
November 2024
State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.
Eur J Pediatr
November 2024
Pediatric Neurology, Università Cattolica del Sacro Cuore, Rome, Italy.
Purpose: This cross-sectional monocentric study aims to utilize the Early Childhood Attention Battery to investigate early attention patterns in young preterm children and ascertain the extent to which their attentional abilities diverge from those of term peers.
Methods: Inclusion criteria encompassed gestational age < 34 weeks, with assessments conducted between 3 and 5 years 11 months. Exclusion criteria included major brain lesions, significant motor or behavioral disorders, and intellectual functioning with IQ < 70.
Background: Bronchopulmonary dysplasia (BPD) affects up to half of extremely preterm infants, and is associated with adverse long-term respiratory, neurodevelopmental, and educational sequelae and costly health service and family economic outcomes. The NICHD Neonatal Research Network Hydrocortisone for Bronchopulmonary Dysplasia (BPD) Trial evaluated the efficacy and safety of hydrocortisone treatment to prevent BPD in high-risk infants. The trial enrolled 800 very preterm infants with respiratory failure and followed the participants until 2 years corrected age to assess safety of the trial intervention.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!