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Exploring the potential mechanism of Xiaoqinglong Decoction in the treatment of acute exacerbations of chronic obstructive pulmonary disease based on network pharmacology and in silico study.3 days agoXiaoqinglong Decoction (XQLD) is a traditional Chinese herbal formula widely used in clinical practice to treat acute exacerbations of chronic obstructive pulmonary disease (AECOPD) with notable efficacy. Studies indicate that XQLD can effectively modulate the inflammatory response during the acute infectious phase of AECOPD; however, its underlying mechanism of action remains unclear. This study employed network pharmacology, molecular docking, and molecular dynamics simulations to investigate the potential target genes of XQLD and its possible mechanisms of action in treating AECOPD. Active ingredients and related targets of XQLD were identified from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform, SwissTargetPrediction, and UniProt. AECOPD-related targets were collected from GeneCards, DrugBank, online Mendelian inheritance in man, and PharmGKB. Common targets between the active ingredients of XQLD and AECOPD were screened. A protein-protein interaction network was constructed using the Search Tool for the Retrieval of Interacting Genes/Proteins database and visualized with Cytoscape. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses were performed using the Database for Annotation, Visualization and Integrated Discovery database. Molecular docking and molecular dynamics simulations were conducted using AutoDock Vina and GROMACS, respectively, to evaluate the binding affinity and stability between core targets and active components. The results revealed that the active ingredients of XQLD, including quercetin, luteolin, and kaempferol, target multiple genes such as nuclear factor kappa B subunit 1, signal transducer and activator of transcription 1, mechanistic target of rapamycin kinase, caspase-3, BCL2‑Like 1, and MYC, primarily through the TNF and PI3K/Akt signaling pathways. Molecular docking and dynamics simulations confirmed stable binding between core targets and active ingredients, particularly between glyuranolide and signal transducer and activator of transcription 1, which merits further investigation. XQLD may alleviate AECOPD progression by regulating the inflammatory response, hypoxia, and apoptosis through multi-component, multi-target, and multi-pathway mechanisms. These findings provide a theoretical basis for further experimental research and potential clinical application of XQLD.Chronic respiratory diseaseCare/Management
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Analysis, evaluation of hemodynamic differences and treatment strategy recommendations for multiple paraclinoid aneurysms.3 days agoMultiple paraclinoid aneurysms of the internal carotid artery present distinct clinical and anatomical challenges compared with other aneurysms. This study aimed to investigate the hemodynamic characteristics of the parent artery adjacent to these lesions and to provide evidence-based suggestions for clinical treatment. We retrospectively reviewed digital subtraction angiography images of 57 patients treated between 2020 and 2024, including 18 cases with multiple paraclinoid aneurysms, 19 with a single paraclinoid aneurysm, and 20 with normal vascular anatomy. Parameters including peak systolic flow velocity and wall shear stress were derived from reconstructed hemodynamic models. We compared hemodynamic profiles among groups and evaluated the effects of simulated aneurysm obliteration on the distal vessel wall proximal to the carotid bifurcation. Four real-world follow-up cases were also analyzed for morphological and hemodynamic changes after treatment. The multiple-aneurysm group exhibited greater variability and instability in wall shear stress and flow velocity than the single-aneurysm and normal groups. Simulated aneurysm elimination showed no significant hemodynamic effect on distal vessels (P > .05). In clinical follow-up, however, noticeable morphological and hemodynamic alterations were observed following stent deployment. Multiple paraclinoid aneurysms induce more prominent hemodynamic disturbances in the parent artery. Aneurysm obliteration appears to have minimal immediate impact on the distal vessel wall, but stent placement may produce favorable long-term vascular remodeling, including straightened curvature and improved mild stenosis.Cardiovascular diseasesAccessCare/ManagementAdvocacy
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Effect of a short questionnaire (7VTE-Quest) on venous thromboembolism to guide education during consultation.3 days agoAnticoagulation treatment of venous thromboembolism (VTE) carries potential risks, including major bleeding and recurrent VTE, often due to poor adherence, which is itself associated with insufficient patient knowledge. To investigate patient knowledge over time to evaluate the effectiveness of the strategy of patient education employed in our clinic. We created a short patient questionnaire (7VTE-Quest), completed in the waiting room and used to guide patient education during consultation. Patients requiring anticoagulant therapy ≥3 months and having completed the 7VTE-Quest at 2 different consultations between March 2022 and December 2024 were included. The primary endpoint was improved score (≥1 point) at second completion of the questionnaire. A total of 135 patients completed the questionnaire a second time a mean (±SD) 211 (±169) days after the initial completion. After excluding 4 patients who achieved a perfect score both times, the score improved for 56.5% (74/131) of patients. The change in total score ranged from -3 to +4. The greatest overall gain was for questions on management of forgotten medication dose (20.0%, 27/135) and interaction between anticoagulants and NSAIDs (11.1%, 15/135). A regression in the number of patients providing correct answers was observed for all questions between 1.6 and 40%. The greatest regression was observed for NSAID contraindication: 40.0% (14/35) of patients could no longer recall this contraindication, while 29.0% (29/100) of those who could not initially recall this contraindication did so at the second completion. The strategy we propose shows an improvement of patient knowledge on their VTE disease and treatment but failed to assess its impact on clinical outcomes.Cardiovascular diseasesAccessCare/ManagementAdvocacyEducation
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Association between lipid accumulation product index (LAP index) and coronary artery disease risk: An observational study based on NHANES 2017-2020.3 days agoCoronary artery disease (CAD) is a highly prevalent condition that predominantly affects obese individuals and those with metabolic abnormalities. The lipid accumulation product (LAP), combining waist circumference (WC) and triglyceride (TG) measurements, provides a clinically relevant metric for evaluating adipose tissue deposition. However, existing research findings regarding its association with CAD remain inconsistent. Therefore, this study further investigates the relationship between LAP and CAD to elucidate whether the LAP index can serve as a reliable screening tool for identifying individuals at high risk for CAD. Utilizing the National Health and Nutrition Examination Survey 2017-2020 database, we performed logistic regression analysis to investigate the association between LAP and CAD. Receiver operating characteristic (ROC) curve analysis was applied to assess the predictive performance of LAP and other metabolic parameters in relation to CAD. Additionally, subgroup analyses and interaction tests were performed to detect possible effect modifiers and verify the robustness of findings across different population strata. Our study recruited 7860 participants, among whom 499 individuals were diagnosed with CAD. A statistically significant association between LAP and CAD was established through regression analysis (OR: 4.12, 95% CI: 2.06-6.23, P < .001). ROC analysis found that LAP demonstrates moderate-to-good discriminatory power for CAD (AUC: 0.789, 95% CI: 0.773-0.805, P < .001) when compared to other metabolic markers. Notably, a statistically significant elevation in LAP levels is observed among CAD patients when compared to their counterparts without CAD. These results support its integration into clinical protocols as a gatekeeper screening mechanism for primary CAD prevention.Cardiovascular diseasesAccessCare/ManagementAdvocacy
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Statin use and 28-day survival in critically ill patients with non-acute myocardial infarction cardiogenic shock: A retrospective cohort study accounting for treatment timing.3 days agoEvidence regarding statin therapy in non-acute myocardial infarction cardiogenic shock is limited, and retrospective medication studies are vulnerable to treatment-timing bias. We examined whether the association between statin exposure and 28-day mortality persisted after accounting for the timing of statin administration. This retrospective cohort study used medical information mart for intensive care IV data from 991 adults with non-acute myocardial infarction cardiogenic shock. Statin exposure was ascertained from medication records that included atorvastatin and other statin agents. In the conventional time-fixed analysis, exposure was defined as receipt of any statin during the intensive care unit (ICU) stay. A 24-hour landmark analysis included patients alive at 24 hours, classified exposure according to statin administration during the 1st 24 hours, and began follow-up at the landmark. Separate 1:1 propensity-score matching (PSM) procedures and Cox models were performed for each exposure definition. Statin agent, 1st recorded dose, route, and time to 1st administration, together with specific mechanical-support, anti-inflammatory, and vasoactive co-treatments, were descriptively summarized in the matched cohorts. In the conventional cohort, 475 patients received a statin during the ICU stay and 516 did not; 255 patients per group remained after PSM. Conventional analyses suggested lower 28-day mortality before matching (adjusted hazard ratio [HR], 0.703; 95% confidence interval [CI], 0.539-0.918; P = .010) and after PSM (adjusted HR, 0.709; 95% CI, 0.507-0.993; P = .045). In the 24-hour landmark cohort, 311 patients received a statin within 24 hours and 680 did not; 255 patients per group remained after PSM. The association was absent before matching (adjusted HR, 1.127; 95% CI, 0.854-1.487; P = .398) and after PSM (adjusted HR, 1.190; 95% CI, 0.833-1.701; P = .339). Atorvastatin was the predominant 1st statin in both matched exposed groups. In 4-category analyses, the apparent benefit among new initiators in conventional models disappeared after the 24-hour landmark definition was applied. The apparent survival advantage associated with conventional time-fixed statin exposure was not reproduced after treatment timing was addressed. These findings do not support an independent 28-day survival benefit from statin administration within the 1st 24 hours of ICU admission and highlight the potential influence of immortal-time, treatment-selection, and co-treatment biases.Cardiovascular diseasesAccessCare/ManagementAdvocacy
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Clinical improvement of premature ventricular contraction in an elderly patient treated with Chaihu Sanshen Capsule: A case report.3 days agoPremature ventricular contraction (PVC) is one of the most common kinds of arrhythmias for which the treatment poses a therapeutic dilemma. Traditional Chinese medicine has a long history in arrhythmia treatment, and this is a rare case of an elderly patient with PVC who showed significant improvement after receiving Traditional Chinese medicine treatment.
An 82-year-old male, with a history of mitral stenosis, has undergone surgical mitral valve replacement. This time, he presented with chest pain and palpitations. He was diagnosed with frequent PVCs.
He was diagnosed with PVC by 24-hour Holter monitoring.
The patient visited The First Hospital of Hunan University of Chinese Medicine on November 4, 2024, and received therapy with Chaihu Sanshen Capsule (CHSSC).
After taking CHSSC for 3 treatment courses, the Holter tests showed that the number of ectopic premature beats decreased from 47,730 to 844 within 24 hours. This objective improvement was correlated with significant symptomatic relief, including a pronounced reduction in palpitations and easing of chest tightness.
This single case observation generates the hypothesis that CHSSC may be associated with reduced PVC burden and symptomatic improvement in elderly patients. Nevertheless, these preliminary findings warrant further investigation through larger prospective studies to establish conclusive evidence.Cardiovascular diseasesAccessCare/Management -
Association between pericoronary CT fat attenuation index and coronary artery spasm.3 days agoFat attenuation index (FAI) is currently used in research on coronary atherosclerotic heart disease, but there are no reports on FAI applications in coronary artery spasm (CAS). In this study, we explored the association between pericoronary FAI and CAS. Patients who had chest pain and stenosis < 50% in major coronary branches, as indicated by coronary CT angiography (CCTA) at our hospital from January 2022 to June 2023 were included. According to the diagnostic criteria for vasospastic angina published by the Japanese Circulation Society in 2013, patients confirmed to have CAS were assigned to a CAS group, while those who were not consistent with CAS and had a negative treadmill test were assigned to a control group. Pericoronary FAI and circulating inflammatory factor levels were measured at enrollment. Count data were analyzed using the χ2 test, measurement data using the t-test or nonparametric test, and CAS-related risk factors using multivariate logistic regression. There were 230 patients in the CAS group and 112 patients in the control group. The pericoronary FAI and smoking rate were significantly lower in the control group than in the CAS group (P < .05), but there were no significant differences in other data, including general clinical data, medication use, and circulating inflammatory factor levels (all P > .05). Univariate analysis exhibited that the CAS-related risk factors included smoking, diabetes, high-density lipoprotein cholesterol, and pericoronary FAI. Multivariate logistic regression indicated that smoking and FAI around the left anterior descending branch were significantly associated with CAS. Elevated pericoronary FAI is an independent risk factor for CAS. Local coronary inflammation plays a dominant role in CAS, while circulating inflammatory factor levels seem not to be associated with CAS.Cardiovascular diseasesAccessCare/ManagementAdvocacy
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Impact of educational level on EDACS performance for chest pain risk stratification: A prospective cross-sectional study.3 days agoThe Emergency Department Assessment of Chest Pain Score (EDACS) is a validated tool for identifying patients at very low risk of major adverse cardiac events (MACE), enabling safe discharge without further testing. EDACS incorporates symptom characteristics such as location, pattern, radiation, association with respiration, and cardiovascular risk factors-information typically based on patient self-report. This study aimed to evaluate whether educational level affects patients' ability to describe symptoms, to evaluate risk refinement between the EDACS and the objectively enhanced EDACS-ADP (Accelerated Diagnostic Pathway) classifications. This prospective, cross-sectional, single-center study included patients presenting to a tertiary emergency department with chest pain. Patients were categorized into 3 groups based on educational level. EDACS and EDACS-ADP were calculated for each patient. Risk reclassification and the influence of educational level were analyzed using McNemar's test and multivariable logistic regression. Of 4151 patients admitted to the emergency department with complaints of chest pain during a one-month period, 177 were included. 62.7% were male; the median age was 61.0 years. Overall, 38.4% (48/125) of patients in the EDACS-ADP high-risk category were initially classified as low-risk by EDACS (P < .001). The reclassification rate was highest in Group 1 (low education) at 42.9%, in Group 2 (38.9%), and Group 3 (33.3%) (P < .001 for all). Multivariable logistic regression identified female gender, coronary arterial disease, and smoking as independent predictors of reclassification. Our findings suggest that EDACS-ADP provides additional objective risk refinement across patients with different educational backgrounds.Cardiovascular diseasesAccessAdvocacyEducation
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Infective endocarditis presenting with myocardial infarction with non-obstructive coronary arteries: A case report and literature review.3 days agoInfective endocarditis (i.e.) results from the combined effects of multiple factors, such as frequent vascular access procedures and impaired immune system function, and is relatively common among patients with uremia undergoing long-term hemodialysis. Myocardial infarction with nonobstructive coronary arteries (MINOCA) may present as an atypical clinical presentation, especially in patients with multiple comorbidities.
We report a rare case of a 52-year-old male who underwent regular hemodialysis using a tunneled-cuffed catheter and presented with persistent acute chest distress and pain for 4 hours.
Immediately after defecation, the patient developed persistent severe chest pain, shortness of breath, and profound sweating. ST-segment depression and T-wave alterations in the inferior leads (II, III, and aVF) on the initial ECG, together with elevated troponin I levels, raised suspicion of acute myocardial infarction (AMI). Emergency coronary angiography showed an irregular aortic valve, no significant stenosis of the left main coronary artery, 20-30% stenosis of the middle segment of the anterior descending artery, 30-40% stenosis of the circumflex artery, and no significant stenosis of the right coronary artery. Laboratory results revealed an increased percentage of white blood cells, neutrophils, and C-reactive proteins (CRP). Cardiac ultrasonography revealed hyperechogenicity of the aortic valve, suggesting the presence of vegetation. Considering the patient's history of uremia, long-term hemodialysis, and the absence of obstructive coronary arteries, MINOCA secondary to IE was suspected.
Treatment with broad-spectrum antibiotics was initiated. Given the echocardiographic findings of massive and moderate aortic valve regurgitation, the patient underwent aortic valve replacement with cardiopulmonary bypass.
The patient's inflammatory markers and white blood cells significantly decreased, serum troponin decreased, and ST-T changes in the ECG significantly recovered. After mechanical aortic valve replacement, the patient was discharged with anti-infection therapy, cardiac strengthening, blood purification, and nutritional support.
The clinical presentation of infective endocarditis is atypical in patients undergoing dialysis, especially in the presence of other life-threatening conditions. Early multimodal imaging and multidisciplinary collaboration are essential for the timely diagnosis and management of MINOCA and IE.Cardiovascular diseasesAccessCare/Management -
Evaluation of clinical performance of artificial intelligence-assisted measurement of thoracic aortic diameter on non-contrast CT.3 days agoThis study aimed to evaluate the clinical performance of artificial intelligence (AI)-assisted measurement of thoracic aortic diameter on non-contrast computed tomography (NCCT). This single-center prospective study included 79 patients (mean age = 70 ± 13 standard deviation; 46 men) who underwent NCCT and arterial phase contrast-enhanced computed tomography (CECT) for evaluating aortic diseases between 2021 and 2022. Maximum diameters of 9 American Heart Association landmarks and the maximum ascending/descending aorta were measured. Upper limits of the 95% confidence interval (CI) for the absolute difference in aortic diameter between the AI-assisted/manual method on NCCT and the manual method on CECT (DiffAI-assisted/Diffmanual) were calculated and compared using a predefined cutoff of 1.5 mm. Evaluation times were also compared. No significant difference was found between per-patient DiffAI-assisted and Diffmanual (1.10 mm; 95% CI = 1.03-1.18 vs 1.03 mm; 95% CI = 0.95-1.11, P = .058); the upper limit of the 95% CI was <1.5 mm. The upper limit of the 95% CI of the geometric mean DiffAI-assisted and Diffmanual was also <1.5 mm at each landmark. The median evaluation time of the AI-assisted method was shorter than that of the manual method (expert radiologist = 272 seconds [interquartile range (IQR) = 229-313] vs 496 seconds [IQR = 438-550]; P < .001, training radiologist: 304 seconds [IQR = 257-404] vs 710 seconds [IQR = 563-855]; P < .001). AI-assisted thoracic aortic diameter measurement on NCCT was as accurate as manual measurement on CECT; its evaluation time was shorter than that of manual measurement on NCCT.Cardiovascular diseasesAccessCare/ManagementAdvocacy