Early cartilage lesion and 5-year incident joint surgery in knee osteoarthritis patients: a retrospective cohort study.

Objective: to investigate the association between cartilage lesion-related features observed in knee osteoarthritis (OA) patients' first MRI examination and incident knee surgery within 5 years. Additionally, to assess the predictive value of these features for the incident knee surgery.

Methods: We identified patients diagnosed with knee OA and treated at our institution between January 2015 and January 2018, and retrieved their baseline clinical data and first MRI examination films from the information system.

The prevalence of chronic medication therapy problems and pharmacists' interventions among hospitalized perioperative patients: a retrospective observational study.

Background: Inadequate preoperative management of chronic medications can place perioperative patients at risk and cause unnecessary delays in surgical procedures. This study aims to investigate the prevalence of chronic medication therapy problems (CMTPs) in hospitalized perioperative patients and assess the relevance of pharmacists' interventions.

Methods: We conducted a retrospective study of pharmacist-led preoperative management of chronic medications in hospitalized adult patients from November 2018 to April 2019.

Thermal Conductivity Measurement of Flexible Composite Phase-Change Materials Based on the Steady-State Method.

Phase-change materials (PCMs) are widely used in energy storage and thermal management due to the large latent heat in the phase-change process. As one of the most significantly thermophysical properties of PCMs, the thermal conductivity has been extensively studied. Great attention has been paid to improving the thermal conductivities of PCMs; however, the studies on the thermal conductivities of flexible PCMs are relatively inadequate.

Risk Predictors of 3-Month and 1-Year Outcomes in Heart Failure Patients with Prior Ischemic Stroke.

Despite available therapy, mortality, and readmission rates within 60-90 days of discharge for patients hospitalized with heart failure (HF) are higher compared to the 1-year rates. This study sought to identify the risk factors of the combined endpoint of all-cause readmission or death among HF patients. Patients with a diagnosis of HF aged 65 or older were included in this prospective observational cohort study.

Predicting suitable habitats of Melia azedarach L. in China using data mining.

Melia azedarach L. is an important economic tree widely distributed in tropical and subtropical regions of China and some other countries. However, it is unclear how the species' suitable habitat will respond to future climate changes.

Initial Experience in Transvenous Implantation of a Left Ventricular Lead With a Novel Venogram Balloon Catheter.

Aim: The most challenging and time-consuming stage of cardiac resynchronization therapy (CRT) device implantation is coronary sinus (CS) cannulation and left ventricular epicardial electrode implantation. This paper reports the initial clinical experience of CS cannulation and left ventricular lead implantation guided by a novel venogram balloon catheter (Lee's venogram balloon catheter).

Methods And Results: Consecutive patients eligible for CRT were deemed suitable for this novel venogram balloon catheter.

The safety and efficiency of fluoroless site-specific transseptal puncture guided by three-dimensional intracardiac echocardiography.

Background: Although fluoroless transseptal puncture (TSP) guided by intracardiac echocardiography (ICE) has been used for many years, there are no reports of an accurate site-specific method for TSP in detail, especially about the safety and efficiency of the method. This study aimed to compare the efficacy and safety of TSP guided by three-dimensional ICE using a fluoroless site-specific method with that of the conventional fluoroless method in patients with atrial fibrillation (AF).

Methods: This prospective study included 60 patients with AF scheduled for radiofrequency ablation who were assigned to undergo modified fluoroless site-specific TSP (SS-ICE group, n = 30) or conventional fluoroless TSP (C-ICE group, n = 30).

The role of magnetic resonance imaging in assessing the extent of tongue squamous cell carcinoma: A prospective cohort study.

Purpose: To assess the false-positive and false-negative MRI results in evaluating the extent of tongue squamous cell carcinoma.

Methods: A prospective cohort series of 165 patients was enrolled to assess the false-positive and false-negative MRI results in evaluating the extent of tongue squamous cell carcinoma by comparing intraoperative tumor profile images and postoperative pathological sections. The differences between two-dimensional tumor margins were analyzed using Mimics 15.

Interfacial Reviving of the Degraded LiNi Co Mn O Cathode by LiPO Repair Strategy.

Nickel-rich cathode materials, owing to their high energy density and low cost, are considered to be one of the cathodes with the most potential in next-generation lithium-ion batteries. Unfortunately, this kind of cathode with highly active surface is easy to react with H O and CO when exposed to ambient air, resulting in the formation of lithium impurities and interfacial phase transition as well as deterioration of the electrochemical properties. In this work, the evolution mechanism of the structure and interface of LiNi Co Mn O during air-exposure is systematically investigated.

Design Rules of a Sulfur Redox Electrocatalyst for Lithium-Sulfur Batteries.

Seeking an electrochemical catalyst to accelerate the liquid-to-solid conversion of soluble lithium polysulfides to insoluble products is crucial to inhibit the shuttle effect in lithium-sulfur (Li-S) batteries and thus increase their practical energy density. Mn-based mullite (SmMn O ) is used as a model catalyst for the sulfur redox reaction to show how the design rules involving lattice matching and 3d-orbital selection improve catalyst performance. Theoretical simulation shows that the positions of Mn and O active sites on the (001) surface are a good match with those of Li and S atoms in polysulfides, resulting in their tight anchoring to each other.

Outcomes of temporary pacing using active fixation leads and externalized permanent pacemakers in patients with cardiovascular implantable electronic device infection and pacemaker dependency.

Introduction: The incidence of cardiac implantable electronic device (CIED) infections is increasing. Complete device and lead removal are recommended for all patients with definite CIED system infection. In patients with pacemaker dependency, temporary pacing before reimplantation is necessary.

Dual-Element-Modified Single-Crystal LiNiCoMnO as a Highly Stable Cathode for Lithium-Ion Batteries.

Single-crystalline LiNiCoMnO cathodes have received great attention due to their high discharge capacity and better electrochemical performance. However, the single-crystal materials are suffering from severe lattice distortion and electrode/electrolyte interface side reactions when cycling at high voltage. Herein, a unique single-crystal LiNiCoMnO with Al and Zr doping in the bulk and a self-formed coating layer of LiZrO in the surface has been constructed by a facile strategy.

Long-term outcomes of non-systematic device reimplantation following lead extraction in selected patients.

Following the removal of cardiovascular implantable electronic devices (CIEDs), reassessment of the need for a new device is vital. Some patients may have exhibited an improvement in rhythm or cardiac function and may thus no longer meet the guideline requirements for reimplantation. However, the long-term outcomes of non-systematic device reimplantation remain unknown.

Efficacy and safety of transvenous lead extraction in the Chinese octogenarian patients.

Background: Managing elderly patients with infection or malfunction deriving from a cardiac implantable electronic device (CIED) may be challenging. We report the safety and effectiveness of transvenous lead extraction in Chinese octogenarian patients.

Hypothesis: Transvenous lead extraction can be performed safely and successfully in the Chinese octogenarians.

A Three in One Strategy to Achieve Zirconium Doping, Boron Doping, and Interfacial Coating for Stable LiNiCoMnO Cathode.

LiNiCoMnO cathodes suffer from severe bulk structural and interfacial degradation during battery operation. To address these issues, a three in one strategy using ZrB as the dopant is proposed for constructing a stable Ni-rich cathode. In this strategy, Zr and B are doped into the bulk of LiNiCoMnO, respectively, which is beneficial to stabilize the crystal structure and mitigate the microcracks.

Trends of global burden of atrial fibrillation/flutter from Global Burden of Disease Study 2017.

Objective: This study aimed to estimate the global burden of atrial fibrillation/atrial flutter (AF/AFL).

Methods: We retrieved data from the Global Health Data Exchange query tool and estimated the age-standardised rates (ASRs) of prevalence, incidence and disability-adjusted life-years (DALYs) of AF/AFL, as well as the population attributable fraction (PAF) of risk factors contributing to DALYs. ASRs and sociodemographic index (SDI) were assessed using Pearson's correlation coefficients.

Investigation of the treatment modality in primary lymphoma of the salivary glands.

Purpose: To review our experience in managing primary lymphoma of the major salivary glands by analysing the treatment modality of patients.

Methods: In this study, we reviewed the medical records of 26 patients with primary malignant lymphoma of the major salivary glands who were treated at Beijing Stomatological Hospital of Capital Medical University from January 1999 to March 2015. The predictor variable was treatment modality.

Ferroelectric-like Behavior Originating from Oxygen Vacancy Dipoles in Amorphous Film for Non-volatile Memory.

Traditional ferroelectric devices suffer a lack of scalability. Doped HfO thin film is promising to solve the scaling problem but challenged by high leakage current and uniformity concern by the polycrystalline nature. Stable ferroelectric-like behavior is firstly demonstrated in a 3.

Percutaneous management of atrium and lung perforation: A case report.

Background: Cardiac perforation by a transvenous lead is an uncommon but serious complication. Delayed perforation, defined as migration and perforation of an implanted lead at least 1 mo after implantation, is exceedingly rare and prone to underdiagnosis, and its optimal management is currently unclear. We report an uneventful transvenous extraction of an active fixation lead that led to delayed perforation of the right atrium, pericardium, and lung, disclosed 2 mo after implantation.

Outcomes of transvenous lead extraction in patients with lead perforation: A single-center experience.

Background: Management of cardiac perforation caused by the lead of a cardiac implantable electronic device (CIED) is currently unclear. This study evaluated the outcomes of transvenous lead extraction (TLE) in patients with cardiac perforation caused by a transvenous lead.

Hypothesis: Removal of perforated lead by transvenous approach is safe and effective.

Transfemoral extraction of pacemaker and implantable cardioverter defibrillator leads using Needle's Eye Snare: a single-center experience of more than 900 leads.

The femoral approach with the Needle's Eye Snare (NES) is often used for bailout after failure of the superior approach for transvenous lead extraction (TLE). The safety and efficacy of the NES as a first-line tool for TLE remain unclear. The medical records of patients who underwent TLE via the femoral approach utilizing the NES from May 2014 to June 2019 in Peking University People's Hospital were retrospectively reviewed.

Prognosis of Pediatric Patients With Mucoepidermoid Carcinoma of the Parotid Gland.

Objective: To summarize the prognosis of pediatric patients with mucoepidermoid carcinoma (MEC) of the parotid gland.

Methods: Pediatric patients with MEC of parotid gland who were surgically treated at the Capital Medical University School of Stomatology from 2000 to 2014 were retrospectively analyzed. Clinical characteristics, pathology reports, and operation records were reviewed and analyzed.

Cardiac resynchronization therapy coronary venous left ventricular lead removal and reimplantation: Experience from a single center in China.

The present study aimed to investigate the success rate, methods and associated complications of left ventricular lead (LVL) extraction and venous pathway reimplantation in patients with cardiac resynchronization therapy device/defibrillator (CRT/CRTD). A retrospective analysis was performed in the patients who underwent CRT/CRTD extraction and reimplantation at our hospital from January 2012 to October 2018. The methods, patient complications and success rate of extraction and reimplantation of LVL were analyzed.