Magnetic resonance (MR) imaging represents a cornerstone of non-invasive diagnostic radiology. Historically, patients with cardiovascular implantable electronic devices (CIED) were universally excluded from MR procedures due to safety concerns. However, iterative innovations in device technology have shifted this paradigm, enabling the majority of CIED recipients to undergo MR imaging safely when stringent protocols are implemented. To address the growing clinical demand and standardize practice in China, a multidisciplinary panel of experts convened by the Chinese Society of Pacing and Electrophysiology (CSPE), The Arrhythmia Technology Society of China Association of Medical Equipment(CAME) , and Chinese Medical Doctor Association Cardiac Rhythm Management Committee developed this consensus guideline. This document defines key terminology and establishes a comprehensive framework encompassing pre-procedural patient selection, intra-procedural monitoring protocols, and post-procedural follow-up for both MR-conditional and legacy non-MR-conditional CIED. Fifteen evidence-based recommendations are presented alongside risk-stratified management algorithms for complex clinical scenarios. The guideline aims to standardize clinical decision-making and mitigate procedural risks, ultimately expanding access to MR imaging for eligible CIED patients.

As the most common sustained cardiac arrhythmia worldwide, atrial fibrillation is undergoing a transformative shift in catheter ablation therapy—from conventional thermal techniques, such as radiofrequency ablation and cryoablation, toward non-thermal technology, namely pulsed field ablation. Based on the principle of irreversible electroporation, pulsed field ablation employs high-voltage, short-duration electric fields to selectively disrupt myocardial cell membrane structures, achieving tissue-specific ablation while avoiding thermal injury-related complications.

Atrial fibrillation (AF) is a prevalent clinical cardiac arrhythmia that exerts a profound adverse impact on patients' quality of life and long-term prognosis. Pulsed field ablation (PFA), as an emerging energy-based ablation technology, has brought a new direction for AF treatment. By elaborating on its mechanism of action, clinical efficacy, safety profile, and comparative analysis with conventional ablation techniques, this review summarizes the advantages and limitations of PFA. Furthermore, it explores the latest research advances of PFA in AF treatment, aiming to provide a theoretical basis for clinical practice, and shed light on the direction of future research.

Premature ventricular contraction (PVC) is a commonly encountered clinical arrhythmia, for which radiofrequency catheter ablation is a first-line treatment. The success rate of ablation therapy is highly dependent on the site of PVC origin. Papillary muscles, characterized by their columnar anatomical structure within the ventricles, exhibit inherent anatomical variations that often lead to challenges in achieving stable catheter contact, thereby increasing the complexity of radiofrequency ablation procedures. Pulsed-field ablation (PFA), as an emerging ablation modality, not only offers favorable tissue selectivity and safety profiles but also demonstrates ablation depth that is not solely dependent on contact force. Currently, reports on PFA for the treatment of PVCs remain scarce. This article presents a case of PVCs originating from the anterior papillary muscle of the left ventricle that were successfully treated with pulse field ablation.

To quantify the strength of association between multiple lipid parameters and incident cardiovascular disease (CVD) and to evaluate their predictive value, so as to provide evidence for CVD prevention strategies and risk prediction in rural Xinjiang.

This was a cohort study. In Septemper 2016, residents of the 51st Regiment, Tumshuq, 3rd Division, Xinjiang Corps (the most representative rural settlement of the Uyghur people within the Xinjiang Corps) were enrolled as the baseline population. Information on sociodemographics (age, sex, et al), lifestyle (physical activity, smoking, alcohol use et al), anthropometry (height, weight, blood pressure et al), and laboratory indices—total cholesterol (TC), triglycerides (TG), high-density-lipoprotein cholesterol (HDL-C) and low-density-lipoprotein cholesterol (LDL-C), were collected. Uyghur participants were followed up from Septemper 2019 to December 2023. Cumulative incidence was estimated with Kaplan-Meier curves. Cox proportional-hazards models were used to estimate associations between each lipid marker and incident CVD. Discrimination was assessed with receiver-operating-characteristic (ROC) curves.

A total of 9 183 residents [mean age (38.1±14.1) years, 50.5% (4 638/9 183) male] were included. During a median follow-up of 6.3 (5.6–6.9) years, 1 079 new CVD events occurred, giving a cumulative incidence of 11.7% (1 079/9 183). After multivariable adjustment, remnant cholesterol, non-HDL-C, cardiovascular risk index-Ⅰ(TC/HDL-C), CVD risk index-Ⅱ (LDL-C/HDL-C)and TG/HDL-C ratio were associated with incident CVD. cardiovascular risk index-Ⅰ showed the strongest relationship: hazard ratios (HR) across quartiles were 1.87 (95%CI 1.51–2.31), 2.20 (95%CI 1.79–2.72) and 2.40 (95%CI 1.96–2.95). Corresponding HRs for cardiovascular risk index-Ⅱ were 1.75 (95%CI 1.43–2.15), 2.14 (95%CI 1.76–2.62) and 2.22 (95%CI 1.82–2.71). All lipid measures improved model discrimination, CVD Risk Index-Ⅱ performed best (area under the curve 0.77, sensitivity 75.3%, specificity 66.3%).

Except for HDL-C, other studied lipid variables were positively associated with CVD risk, albeit remnant cholesterol showed a weaker association. cardiovascular risk index -Ⅱ provided the best discrimination for future CVD events in this rural Uyghur population.

To understand undergraduate clinical medicine students' satisfaction with current electrocardiogram (ECG) teaching, learning difficulties, and suggestions for optimizing teaching methods, providing reference for further improving electrocardiogram teaching effectiveness.

This study was a cross-sectional survey research. Clinical medicine undergraduates studying at Beijing Hospital from September 2023 to September 2025 were selected as research subjects, with data collected through a combination of online questionnaires and offline interviews. The online questionnaire primarily investigated students' satisfaction with the content and teaching format of the electrocardiogram course, main difficulties encountered during the learning process, and commonly used learning resources. The offline interviews primarily explored students' suggestions for optimizing electrocardiogram teaching.

A total of 56 valid questionnaires were collected. Eighty-two point one percent (46/56) of students considered the teaching content "very comprehensive" or "relatively comprehensive," but 53.6% (30/56) reported "frequently encountering" comprehension difficulties, with the main challenges being arrhythmia identification (62.5%, 35/56) and basic clinical electrocardiography knowledge (53.6%, 30/56). Regarding preferred teaching formats, 82.1% (46/56) of students favored clinical internships, 69.6% (39/56) chose classroom instruction, and 39.3% (22/56) preferred multimedia resources. Eighty-two point one percent (46/56) of students regularly used textbooks and lecture notes as learning resources, 58.9% (33/56) referenced professional books, and 50% (28/56) used video tutorials. Seventy-five point zero percent (42/56) of students believed the course significantly improved their clinical practical abilities, but major difficulties included lack of practical experience (58.9%, 33/56) and insufficient theoretical foundation (41.1%, 23/56). A total of 5 students participated in offline interviews, with teaching suggestions primarily focused on strengthening clinical practice, innovating teaching content and methods, and optimizing learning resources.

Undergraduate clinical medicine students have relatively high overall satisfaction with electrocardiogram teaching, but face significant difficulties in interpreting arrhythmias and applying theory to clinical practice. Students generally prefer clinically-oriented teaching, but lack practical experience, suggesting the need to optimize the integration between theory and practice in ECG teaching.

Type B aortic dissection (TBAD) accounts for 25%-40% of all aortic dissection, with high morbidity and mortality. Unlike type A aortic dissection which requires emergent surgery, the treatment of TBAD relies more on imaging risk stratification assessment. The current basic treatment of TBAD is drug therapy, and there is still controversy over the use of surgical interventions. With the development of hemodynamic technology, it is expected to combine morphological and hemodynamic imaging characterizations to achieve more comprehensive risk stratification and prognosis assessment of TBAD patients. Based on this, the article briefly reviews the new progress in the application of two emerging hemodynamic techniques for non-invasive imaging evaluation of type B aortic dissection.

With the rapid development of artificial intelligence , its applications in the medical field have become increasingly widespread, particularly demonstrating great potential in the management of cardiac arrhythmias. This article provides a review of the current applications and recent advances of artificial intelligence in the diagnosis, treatment, and risk prediction of arrhythmias, and further discusses the existing challenges and limitations, aiming to offer insights for future research and clinical practice.

With the continuous increase in the number of artificial cardiac pacemaker implantations, related technologies are constantly being optimized. However, cardiac perforation remains one of the more serious complications of pacemaker implantation. This article reports a case of cardiac perforation caused by a ventricular defibrillation lead during implantation of an implantable cardioverter defibrillator, aiming to improve the understanding of lead perforation and reduce the risk of surgical complications.