Angiology最新文献

Peripheral artery disease (PAD) is a major public health concern worldwide, associated with high risk of mortality and morbidity related to cardiovascular and adverse limb events. Despite significant advances in both medical and interventional therapies, PAD often remains under-diagnosed, and the prognosis of patients can be difficult to predict. Artificial intelligence (AI) has brought a wide range of opportunities to improve the management of cardiovascular diseases, from advanced imaging analysis to machine-learning (ML)-based predictive models, and medical data management using natural language processing (NLP). The aim of this review is to summarize and discuss current techniques based on AI that have been proposed for the diagnosis and the evaluation of the prognosis in patients with PAD. The review focused on clinical studies that proposed AI-methods for the detection and the classification of PAD as well as studies that used AI-models to predict outcomes of patients. Through evaluation of study design, we discuss model choices including variability in dataset inputs, model complexity, interpretability, and challenges linked to performance metrics used. In the light of the results, we discuss potential interest for clinical decision support and highlight future directions for research and clinical practice.

Percutaneous balloon pericardiotomy (PBP) has emerged as a less invasive alternative to surgical interventions for recurrent severe pericardial effusion (PE), particularly in patients with malignancies. This study evaluates the safety and efficacy of PBP in patients with recurrent severe PE. A total of 42 patients with recurrent severe PE underwent PBP between March 2008 and July 2024. PBP was performed under conscious sedation with fluoroscopic guidance using a 20-mm by 60-mm balloon. Data were collected on patient demographics, echocardiographic findings, procedural details, and follow-up outcomes. The study population had a mean age of 58.4 ± 11.2 years, with 54.8% being female. Most patients (76.2%) had malignant PEs. The procedure was technically successful in all cases, with no immediate complications. The median hospital stay was 4 days. Post-procedural transthoracic echocardiography showed no residual effusion in 40.5% of patients and minimal effusion in 50%. Over a median follow-up of 353 days, 54.8% of patients died due to the progression of underlying malignancies, and four patients experienced recurrent effusions requiring additional intervention. PBP is a safe and effective treatment for recurrent severe PE, particularly in patients with malignancies. The procedure's high success rate and favorable safety profile suggest it might be considered a first-line treatment option in appropriate clinical settings.

While multiple scoring systems exist to predict mortality in cardiac surgery, their utility in infective endocarditis (IE) remains uncertain, prompting this study to compare their prognostic accuracy. We conducted a comprehensive review using Ovid Medline, Embase, and Cochrane Central Register of Controlled Trials. Data were pooled using Open-Meta[Analyst] software, and calibration analysis was performed with Review Manager 5.4. Among 620 articles identified, 570 were screened, leading to 15 included studies. Twelve risk scores were analyzed for operative mortality discrimination in IE surgery, with the area under the curve (AUC) ranging from 0.64 to 0.83. Among the IE-specific risk scores, AUCs (95% confidence interval) were highest for ANCLA (Anemia, NYHA class IV, critical state, large intracardiac destruction, surgery on thoracic aorta) 0.838 (0.803-0.873), AEPEI (Association pour l'Etude et la Prevention de l'Endocadite Infectieuse) 0.764 (0.726-0.802), RISK-E (Risk Endocarditis) (0.752 (0.662-0.842) and APORTEI (Análisis de los factores PROnósticos en el Tratamiento quirúrgico de la Endocarditis Infecciosa) 0.750 (0.726-0.774) scores. Regarding traditional risk scores, EuroSCORE II performed at 0.750 (0.725-0.775) but underestimated mortality compared with EuroSCORE I in calibration analysis. In conclusion, EuroSCORE II and several endocarditis-specific scores had moderate discrimination (AUC > 0.75) in predicting mortality after IE surgery.

Regeneration after tissue injury is a dynamic and complex process, and angiogenesis is necessary for normal physiological activities and tissue repair. Induced pluripotent stem cells are a new approach in regenerative medicine, which provides good model for the study of difficult-to-obtain human tissues, patient-specific therapy, and tissue repair. As an innovative cell-free therapeutic strategy, the main advantages of the treatment of induced pluripotent stem cells (iPSCs)-derived exosomes are low in tumorigenicity and immunogenicity, which become an important pathway for tissue injury. This review focuses on the mechanism of the angiogenic effect of iPSCs-derived exosomes on wound repair in tissue injury and their potential therapeutic targets, with a view to providing a theoretical basis for the use of iPSCs-derived exosomes in clinical therapy.

Cholesterol crystal embolism (CCE) accompanied by a lower extremity wound is occasionally difficult to differentiate from chronic limb-threatening ischemia (CLTI) and treat. The present multi-center retrospective observational study investigated the clinical characteristics and prognosis of CCE with lower extremity wounds. Consecutive patients (n = 58) clinically diagnosed as CCE with lower extremity wounds between April 2010 and December 2019 were studied. CCE was diagnosed using histological findings, foot condition, renal impairment, and eosinophilia. The primary outcome was 1-year wound healing rate. Patients with CCE were compared with 1309 patients diagnosed with CLTI with tissue loss during the same study period. The CCE group had a significantly more severe Wound, Ischemia, and foot Infection (WIfI) classification compared with the CLTI group. After Kaplan-Meier analysis, the CCE group had a similar 1-year wound healing (55.1 vs 58.3%, P = .096) as the CLTI group. In multivariate stratified Cox regression analysis by WIfI stages, CCE was significantly associated with poor wound healing compared with CLTI [hazard ratio .36 (95% confidence interval .21-.62)]. In conclusion, among the similar WIfI clinical stages, wound healing was significantly worse in the CCE group than in the CLTI group.

The objective of this study is to evaluate the effect of preoperative embolization on carotid body tumor resection. A systematic review and meta-analysis were conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. PubMed, Scopus, and Web of Science were screened for studies published between 2010 and 2022. Primary outcomes investigated were intraoperative blood loss, operative time, length of hospital stay, and perioperative complications such as transient ischemic attack (TIA)/stroke, vascular injury, and cranial nerve injury (CNI). A random effects model was used in cases where study heterogeneity was high. Overall, 25 studies were included in the systematic review, involving 1649 patients: 23 studies were eligible for meta-analysis. The incidence of vascular injury was significantly less in the preoperative embolization group (odds ratio (OR) = 0.60; 95% CI: 0.42-0.84; P = .003). There was no statistically significant difference between the two groups regarding intraoperative blood loss, operative time, length of hospital stay, incidence of TIA/stroke, and CNI. Subgroup analyses did not demonstrate significant difference between Shamblin I, II, and III subgroups regarding operative time. This meta-analysis found preoperative embolization to be significantly beneficial in reducing incidence of vascular injury.