Search Results (441)

Background: Metabolic reprogramming in critical illness and the physiological stress of general hospitalization represent fundamentally different states, yet it remains unknown if ketosis acts as a protective shield or a maladaptive metabolic response in the development of atrial fibrillation (AF) across these contexts. We examined urine and serum β-hydroxybutyrate measurements to understand the metabolic association among intensive care unit (ICU) and general hospital populations. Methods: This retrospective cohort study utilized the MIMIC-IV v3.1 database. Patients with preexisting AF or flutter were excluded. Ketosis was defined as urine ketone positivity (≥20 mg/dL) or serum β-hydroxybutyrate (≥1.0 mmol/L). The final analytic cohort included a general ward cohort (n = 13,641) and an ICU cohort (n = 10,251). Multivariable logistic regression, propensity score matching and subgroup analyses were performed. Results: In the ICU cohort, urine ketone positivity and elevated serum β-hydroxybutyrate were associated with lower incidence of AF (5.2% vs. 6.8%, p = 0.001; 3.1% vs. 9.4%, p = 0.034). After adjustment, urine ketone positivity remained independently associated with reduced odds of incident AF (adjusted OR 0.79, 95% CI 0.64–0.98, p = 0.032). Propensity-matched analyses demonstrated protective associations for urine ketones (OR 0.68, 95% CI 0.52–0.88, p = 0.004) and β-hydroxybutyrate (OR 0.24, 95% CI 0.08–0.70, p = 0.003). In contrast, urine ketone positivity in the general ward cohort was associated with higher incident AF (0.9% vs. 0.5%, p = 0.019) and increased adjusted odds (OR 2.62, 95% CI 1.03–6.66, p = 0.044). Urinary ketosis was associated with lower mortality and reduced inflammatory marker profiles across both the ICU and general ward cohorts. Subgroup analyses revealed directionally consistent ketone-AF associations across biological sex with no significant interaction effects. Conclusions: Endogenous ketones demonstrated a context-dependent association with incident AF across clinical acuity levels. These findings highlight ketone metabolism as a potential target for both arrhythmia monitoring and prevention. Full article

Background/Objectives: Ultrasound-guided fascial plane blocks have emerged as opioid-sparing analgesic strategies for cardiac surgery; however, evidence regarding combined block techniques remains limited. This randomized controlled trial evaluated the analgesic efficacy of combined pectoserratus plane block (PSPB) and pecto-intercostal fascial plane block (PIFB) in patients undergoing cardiac surgery via median sternotomy. Methods: Sixty-two adult patients undergoing cardiac surgery via median sternotomy were randomized to either a block group receiving bilateral PSPB and PIFB after anesthetic induction or a control group receiving conventional analgesia alone. The primary outcome was postoperative visual analog scale (VAS) pain score at 6, 12, 24, and 48 h after surgery. Secondary outcomes included Korean version of Quality of Recovery-15 (QoR-15K) scores, total opioid consumption, rescue analgesic dose, time to first rescue analgesia, extubation time, intensive care unit (ICU) stay, hospital stay, and the incidence of postoperative nausea and vomiting. Results: Fifty-four patients were included in the final analysis. Postoperative VAS scores did not differ significantly between groups after Bonferroni correction for repeated measurements. No significant overall between-group effect was observed in repeated-measures ANOVA. ICU stay was statistically shorter in the block group, although the absolute difference was small and of uncertain clinical relevance. No significant differences were observed in the remaining secondary outcomes. Conclusions: Combined PSPB and PIFB did not reduce postoperative pain or improve recovery outcomes after cardiac surgery via median sternotomy. Early postoperative pain scores were numerically higher in the block group, although these differences were not statistically significant after correction for multiple comparisons. The incremental analgesic benefit of combined fascial plane blocks may therefore be limited in this clinical setting. Full article

Background/Objectives: Adult patients supported with extracorporeal membrane oxygenation (ECMO) frequently require invasive diagnostic, therapeutic, surgical, or bedside procedures during ongoing extracorporeal support. These procedures are clinically challenging because ECMO-related anticoagulation, platelet dysfunction, acquired coagulopathy, and circuit-related coagulation activation may increase both bleeding and thrombotic risks. This systematic review evaluated the safety of invasive procedures performed during adult ECMO support, excluding tracheostomy/tracheotomy because this procedure has recently been addressed in a dedicated systematic review. Methods: A systematic search of PubMed/MEDLINE and Scopus was performed. The final bibliographic data collection was completed in April 2026. Studies were eligible if they included adult ECMO or extracorporeal life support patients undergoing invasive procedures during ongoing ECMO support, or with ECMO used as procedural support, and reported at least one procedure-specific safety outcome. Primary outcomes were procedure-related complications, bleeding, major bleeding, and transfusion requirements. Secondary outcomes included thrombotic and circuit-related complications, oxygenator exchange, reintervention, reoperation, procedural failure, ECMO duration, intensive care unit and hospital length of stay, and mortality. Results: The final qualitative synthesis included 46 studies, comprising 26 studies from PubMed/MEDLINE and 20 additional unique studies from Scopus. Included procedures were grouped into six domains: airway, bronchoscopic, and tracheobronchial procedures; thoracic surgery and lung resections; abdominal surgery, gastrointestinal endoscopy, and decompressive laparotomy; lung transplantation and perioperative extracorporeal life support; cardiovascular, vascular, pulmonary embolism-related, and mechanical circulatory support-related procedures; and mixed non-cardiac surgery. Airway and bronchoscopic procedures generally showed high procedural success in selected cohorts, although registry-level tracheal procedure data reported hemorrhagic complications in 26.0% and surgical-site bleeding in 13.0%. Emergency thoracic and abdominal procedures carried the highest bleeding, transfusion, reintervention, and mortality burden. Lung transplantation studies showed that ECMO can be integrated into perioperative pathways, but hemothorax, transfusion, thromboembolism, and anticoagulation strategy remained central safety issues. Conclusions: Invasive procedures during adult ECMO are feasible in selected patients and experienced centers, but procedural safety varies markedly by procedure type, urgency, baseline disease severity, and anticoagulation strategy. A procedure-centered, multidisciplinary approach with individualized anticoagulation management and careful planning is essential. Full article

Background/Objectives: Post-extubation stridor (PES) is common in pediatric critical care and may contribute to extubation failure, particularly in children with heart disease. Prophylactic corticosteroids are frequently used before extubation, but their benefit in pediatric cardiac patients remains uncertain. We evaluated the association of prophylactic corticosteroids with PES and extubation failure and explored whether PES mediated any association with failure. Methods: We performed a retrospective, single-center, observational cohort study of extubation events in a pediatric cardiac critical care unit from July 2016 to June 2024. Exposure was prophylactic intravenous corticosteroids before planned extubation, most commonly dexamethasone (0.15–0.5 mg/kg per dose) or methylprednisolone (1–2 mg/kg per dose), administered 6–24 h before extubation in single- or multi-dose regimens. The primary outcome was clinically defined PES; the secondary outcome was extubation failure, defined as reintubation within 48 h. Confounding was addressed using propensity scores with inverse-probability weighting after common-support restriction. Causal interpretation of the weighted and mediation estimates was considered conditional on the no-unmeasured-confounding (ignorability) assumption. Subgroup analyses were stratified by PES status, and exploratory mediation analysis used structural equation modeling. Results: Among 494 extubation events, prophylactic corticosteroid use was not associated with lower odds of PES after weighting (OR 1.06, 95% CI 0.53–2.10) or extubation failure (OR 0.49, 95% CI 0.19–1.24). Among patients with PES, corticosteroid use was associated with a non-significant reduction in extubation failure (OR 0.70, 95% CI 0.14–3.43). Exploratory mediation analysis, interpreted under the ignorability assumption, did not support PES as a meaningful mediator. Conclusions: In this single-center cohort, prophylactic corticosteroid use was not associated with reduced PES or extubation failure. The findings do not support clinically defined PES as a key mediator of any potential treatment effect. Prospective studies are required for confirmation. Full article

Background/Objectives: Postoperative hypoxemia is a frequent complication after non-cardiac surgery and is correlated with elevated mortality rates in elderly patients. However, a dedicated predictive tool for mortality in this specific patient subgroup remains unavailable. To construct and validate a machine learning (ML) model for predicting in-hospital mortality among elderly adults who develop hypoxemia after non-cardiac surgery. Methods: Data for this retrospective cohort study were obtained from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. The study encompassed patients aged 65 years or older who exhibited hypoxemia, defined as a PaO₂/FiO₂ ratio below 300 mmHg, within the initial 48 h of intensive care unit (ICU) stay. LASSO (Least Absolute Shrinkage and Selection Operator) regression was applied for feature selection, after which six distinct machine learning models and five conventional scoring systems were constructed and evaluated. SHapley Additive exPlanations (SHAP) was employed to improve model interpretability. Results: Out of 6051 eligible patients, 1838 (30.4%) succumbed during hospitalization. The XGBoost algorithm demonstrated superior predictive capability, achieving an area under the curve (AUC) of 0.794, along with a specificity of 0.917, accuracy of 0.769, and positive predictive value of 0.693. Critical predictors identified included administration of vasopressors, advanced age, and the PaO₂/FiO₂ ratio. Conclusions: The Extreme Gradient Boosting (XGBoost)-driven ML model provides accurate prediction of in-hospital mortality in elderly patients with postoperative hypoxemia after non-cardiac surgery, presenting a valuable instrument for early risk evaluation and potential intervention. Full article

Background: Postoperative hyperbilirubinemia is a serious complication after cardiac surgery and has been associated with increased perioperative morbidity and mortality. However, data specifically addressing patients undergoing redo valve surgery remain limited. This study aimed to determine the incidence and risk factors of postoperative hyperbilirubinemia after redo valve surgery, and evaluate its association with early postoperative outcomes. Methods: We retrospectively reviewed 259 adult patients who underwent elective redo valve surgery under cardiopulmonary bypass (CPB) between March 2018 and July 2024. Postoperative hyperbilirubinemia was defined as a serum total bilirubin level > 3 mg/dL at any time after surgery. Patients were divided into a hyperbilirubinemia group and a non-hyperbilirubinemia group. Perioperative variables were compared between groups. Univariable and multivariable logistic regression analyses were performed to identify risk factors for postoperative hyperbilirubinemia. Postoperative complications and in-hospital mortality were also compared. Results: Postoperative hyperbilirubinemia occurred in 101 of 259 patients (39.0%). Compared with patients without hyperbilirubinemia, those with hyperbilirubinemia had longer mechanical ventilation and intensive care unit stay, and higher rates of pneumonia, reintubation, tracheostomy, continuous renal replacement therapy, and in-hospital mortality. Univariable logistic regression showed that higher EuroSCORE II, higher preoperative total bilirubin and direct bilirubin levels, lower hemoglobin and platelet count, pulmonary hypertension, anemia, longer operative time, CPB duration, and aortic cross-clamp time, lower nasopharyngeal temperature, greater intraoperative blood loss, larger red blood cell and plasma transfusion volumes, and concomitant surgery on all three valves were associated with postoperative hyperbilirubinemia. Multivariable analysis identified elevated preoperative direct bilirubin, prolonged CPB duration, and more plasma transfusion as independent risk factors. Receiver operating characteristic analysis showed that peak postoperative total bilirubin had moderate prognostic discrimination for in-hospital mortality, with an optimal cut-off value of 3.95 mg/dL (AUC 0.756, sensitivity 66.7%, specificity 80.2%, p = 0.003). Conclusions: Postoperative hyperbilirubinemia is common after redo valve surgery and is associated with worse early postoperative outcomes and higher in-hospital mortality. In this setting, postoperative bilirubin elevation should be interpreted primarily as a prognostic marker of perioperative stress and hepatic vulnerability rather than a direct causal driver of adverse outcomes. Elevated preoperative direct bilirubin, prolonged CPB duration, and greater plasma transfusion were independently associated with the development of postoperative hyperbilirubinemia in this high-risk population. Full article

Background/Objectives: Methylene blue (MB) has re-emerged as an adjunctive vasopressor-sparing therapy in vasoplegic shock states, with emerging evidence supporting its hemodynamic benefits; however, its effect on mortality remains uncertain. We systematically evaluated the effectiveness of MB versus standard therapy in adults with circulatory shock. Methods: We performed a systematic review and meta-analysis of randomized controlled trials registered in PROSPERO (CRD420261326534) and reported according to PRISMA. MEDLINE, Embase, and the Cochrane Library were searched through February 2026. An additional AI-assisted supplementary search was conducted to minimize the risk of missing eligible studies. Eligible studies enrolled adults with shock and compared MB with standard therapy or placebo. The primary outcome was 28–30-day all-cause mortality. Secondary outcomes were renal replacement therapy (RRT), hospital length of stay, and intensive care unit (ICU) length of stay. Risk of bias was assessed with RoB 2. Results: Nine randomized trials involving 535 participants met the eligibility criteria; most evaluated septic shock, while one trial included post-cardiac surgery vasoplegic shock. Eight trials contributed to the quantitative synthesis of mortality. MB was not associated with a statistically significant reduction in short-term mortality. Secondary analyses also did not demonstrate significant pooled effects for RRT, hospital length of stay, or ICU length of stay, although several individual trials reported faster hemodynamic improvement and reduced vasopressor exposure with MB. Overall confidence in the pooled estimates was limited by small sample sizes, clinical heterogeneity, imprecision, and risk-of-bias concerns in some studies. Conclusions: Current randomized evidence does not demonstrate a clear mortality or resource use benefit of MB in adult shock, despite signals of hemodynamic improvement. MB appears promising as an adjunctive therapy, but adequately powered, methodologically rigorous trials are required before its routine early use can be recommended. Full article

Background and Objectives: The diagnostic accuracy of an artificial intelligence (AI)-derived initial 12-lead electrocardiogram (ECG) analysis was evaluated for early carbon monoxide-induced cardiomyopathy (CO-CMP) risk detection. Materials and Methods: Retrospective medical data of carbon monoxide poisoning (COP) cases between 1 January 2015 and 31 December 2024 were screened for the primary outcome: odds ratio (OR) for echocardiographically confirmed CO-CMP among those with high-risk probability score per the AI-derived model. Secondary outcomes included left ventricular ejection fraction (LVEF) and AI-derived probability score, critical care requirements, including intubation and intensive care unit (ICU) admission, and cardiac arrest events. Results: A total of 51 patients with acute COP were included in the final analysis, with 13 (25.5%) being diagnosed with CO-CMP. The LVEF in the CO-CMP group was lower than that in the non-CO-CMP group (40.00 ± 13.80% vs. 63.76 ± 6.24%, p < 0.001). The AI-derived probability score was higher in the CO-CMP group (11.3 [3.8–32.7] vs. 0.5 [0.2–2.2], p < 0.001). Among cardiac biomarkers, troponin I (2.37 [0.32–7.88] vs. 0.06 [0.06–0.95] ng/mL, p = 0.002) was higher in the CO-CMP group. Patients with CO-CMP required recurrent ventilator support (76.9% vs. 21.1%, p < 0.001) and ICU admission (92.3% vs. 42.1%, p = 0.003). In multivariable regression analysis, the AI-derived prediction model was independently associated with CO-CMP (OR 1.14; 95% confidence interval (CI) 1.02–1.27; p = 0.017; Firth-penalized OR 1.11; 95% CI 1.03–1.25; p < 0.001). Receiver operating characteristic analysis of the AI-derived model showed an area under the curve of 0.85 (95% CI 0.70–0.96) for the AI score alone and 0.92 (95% CI 0.83–0.99) for the Combined AI–cardiac marker model, with a sensitivity of 92.3% and specificity of 81.6%. Pairwise DeLong comparisons between the Combined AI model and comparator models did not reach statistical significance (Combined vs. AI-only, p = 0.092; Combined vs. cardiac markers, p = 0.052); however, the likelihood-ratio test for adding the AI probability score to the cardiac marker-only model demonstrated significant incremental information (χ² = 13.68, p < 0.001). Conclusions: AI-based ECG analysis showed exploratory diagnostic association with LV systolic dysfunction observed in suspected CO-CMP patients. Given the limited sample size, low events-per-variable ratio, and lack of external validation, these findings suggest that AI-ECG analysis may provide incremental information for early cardiac risk stratification in selected patients. Full article

Background: Esophageal atresia (EA) is a complex congenital anomaly frequently associated with additional malformations and genetic conditions. Despite advances in prenatal imaging and genomic technologies, establishing an etiologic diagnosis and performing accurate risk stratification remain challenging due to marked clinical and genetic heterogeneity. Methods: We conducted a retrospective cohort study of neonates diagnosed with EA and admitted to a level IIIc neonatal intensive care unit between 2005 and 2024. Prenatal findings, associated anomalies, genetic testing results, mortality, and neurodevelopmental outcomes beyond 12 months were analyzed. Results: A total of 105 neonates were included, of whom 10.5% were diagnosed prenatally. Isolated EA was identified in 55.2% of patients, whereas 44.8% had associated anomalies, most commonly congenital cardiac defects. Clinically relevant genetic findings were identified in 10.5% of the total cohort (23.4% of complex EA cases). These findings reflect a clinically selected subgroup and should not be interpreted as diagnostic yields applicable to unselected populations or as a comparison between testing modalities. Overall mortality was 11.4%. Lower birth weight showed the strongest association with mortality in univariable analyses; however, no independent predictors were inferred due to the limited number of events. All deceased patients had complex malformative conditions and/or extreme prematurity. Among children with follow-up beyond 12 months, 88.5% demonstrated age-appropriate neurodevelopment. Conclusions: EA is characterized by substantial etiologic and phenotypic heterogeneity. Prenatal detection remains challenging, although advances in fetal imaging may improve diagnostic accuracy. A phenotype-guided approach integrating clinical evaluation and genetic testing may support etiologic diagnosis, recurrence counseling, and follow-up planning in selected patients. However, because testing was indication-driven and evolved over time, the reported diagnostic yields should not be generalized to unselected EA populations or interpreted as comparative performance across testing modalities. Full article

Background/Objectives: In-hospital cardiac arrest (IHCA) remains a devastating event associated with high morbidity and mortality among general ward patients. While Rapid Response Systems (RRS) can help identify deteriorating patients, maintaining these systems in secondary hospitals is frequently hindered by severe fiscal and personnel constraints. Consequently, evidence regarding the real-world clinical effectiveness of artificial intelligence software as a medical device (AI-SaMD) for predicting deterioration in such resource-constrained settings remains limited. Methods: We conducted a retrospective analysis on a multicenter, staggered-implementation study evaluating 164,761 eligible adult general ward admissions across three secondary hospitals in South Korea. The intervention involved deploying an AI-SaMD (DeepCARS), which utilizes four routine vital signs to predict ward IHCA within 24 h. The primary outcome was ward IHCA. Secondary outcomes included in-hospital mortality and length of stay (LOS). Exploratory analyses investigated the mechanisms of clinical outcomes by evaluating lead-times to interventions, outcomes in sepsis subgroups, changes in care directives, and post-arrest neurological outcomes. Results: AI-SaMD implementation was associated with a 21% reduction in ward IHCA incidence (adjusted rate ratio 0.79; 95% CI, 0.65–0.96; p = 0.016) and a 15% reduction in in-hospital mortality (aRR 0.85; 95% CI, 0.79–0.90; p < 0.001), alongside significantly shorter hospital and intensive care unit LOS. These associations were also observed in patients with sepsis (IHCA aRR 0.71; 95% CI, 0.54–0.93; p = 0.013). Lead-times to critical care intervention and to antibiotic escalation were numerically shorter in the AI-SaMD group by 16.3 h (p = 0.066) and 2.6 h (p = 0.523); poor neurological outcome at discharge among ward IHCA cases was 85/108 (78.7%) in the AI-SaMD group versus 63/102 (61.8%) in the standard-care group (aRR 1.13; 95% CI, 0.99–1.33; p = 0.058); and the full-code death rate did not differ between groups (aRR 0.94; 95% CI, 0.76–1.15)—none of these additional analyses reached statistical significance. Conclusions: In secondary hospitals unable to operate an RRS due to fiscal limitations, implementation of an AI-SaMD as an additional informational layer was associated with lower ward IHCA and in-hospital mortality. The AI-SaMD may serve as an actionable and scalable additional safety layer for general-ward patients in resource-constrained environments where RRS infrastructure is not feasible. Although this was a multicenter, large-scale study, the present analysis was retrospective and quasi-experimental in design; rigorous randomized studies are needed to confirm these associations. Full article

Background/Objectives: Delirium is a frequent and clinically significant complication in cardiac surgery patients and is associated with prolonged mechanical ventilation, longer Intensive Care Unit (ICU) stay, increased mortality, and long-term cognitive impairment. However, evidence regarding perioperative factors associated with delirium occurrence in cardiac surgery ICU patients remains limited. This study aims to investigate clinical factors associated with postoperative delirium in cardiac surgery patients admitted to the ICU. Methods: A single-center, prospective, observational study was conducted in a 14-bed cardiothoracic ICU in central Italy. Consecutively enrolled adult patients undergoing cardiac surgery were assessed for delirium using the Italian-validated Intensive Care Delirium Screening Checklist (ICDSC) every eight hours for five days. Univariate analysis and multivariate logistic regression were performed to identify factors associated with delirium occurrence. Results: A total of 175 patients were included, and delirium occurred in 44.6%. In the univariate analysis, patients with delirium presented significantly longer mechanical ventilation (10.5 vs. 8.0 h; p = 0.04) and higher APACHE II scores (p = 0.01). In the multivariable analysis, lower Glasgow Coma Scale (GCS) scores were independently associated with delirium occurrence (OR = 0.84; 95% CI: 0.71–0.99; p = 0.04). Urgent admission (OR = 2.02; p = 0.06) and mean arterial pressure (OR = 0.97; p = 0.08) did not reach statistical significance in the multivariable model. Conclusions: Delirium is highly prevalent after cardiac surgery. Lower postoperative GCS scores may represent an early marker of postoperative neurological vulnerability associated with delirium occurrence. Further multicenter studies are warranted to improve delirium risk stratification and clarify the mechanisms underlying postoperative cognitive dysfunction. Full article

Background/Objectives: Clostridioides difficile infection (CDI) is the leading cause of colitis and hospital-acquired diarrhea. Patients with Chronic Obstructive Pulmonary Disease (COPD) frequently have infectious exacerbations requiring treatment with antibiotics, which may be predisposing them to CDI. This study examines the prevalence and in-hospital outcomes of CDI in patients with COPD. Methods: Data for hospitalized patients with CDI was extracted from the National Inpatient Sample database for the years 2016 through 2020. Baseline risk factors were identified using the International Classification of Diseases codes. Patients were stratified into two groups: with COPD and without COPD. The primary outcome was in-hospital mortality. The secondary outcomes were septic shock, hypovolemic shock, AKI, cardiac arrest, need for intensive care unit (ICU) level of care and length of stay. Statistical analyses were conducted using SPSS. Results: 290,172 patients were included in this study. Patients with COPD had more comorbidities overall and higher in-hospital mortality rates compared to patients without COPD (7.7% vs. 5.9%, p < 0.001). On multivariate logistic regression analysis, patients with CDI and COPD had higher risk of in-hospital mortality (OR = 1.346, p < 0.001), septic shock (OR = 1.289, p < 0.001), hypovolemic shock (OR = 1.184, p < 0.001), cardiac arrest (OR = 1.362, p < 0.001) and required more ICU level of care. Conclusions: Patients with COPD experience frequent exacerbations, often requiring hospitalizations and broad-spectrum antibiotics, steroids, proton pump inhibitors and antacids. These factors contribute to the higher prevalence of CDI in this patient population. Patients with CDI and COPD are also more likely to require ICU level of care, shedding the light on the significant burden of CDI, long hospital stays and substantial hospital charges. Recognizing mortality outcomes is essential to guide patient-specific therapies and highlights the need for closer monitoring and targeted management of CDI in patients with COPD. Full article

Background: Cardiac tamponade (CT) is a rare but life-threatening medical emergency caused by fluid accumulation in the pericardial sac, impairing cardiac filling and reducing output. More than 20% of CT cases are iatrogenic. CT is a recognized complication of central venous catheter (CVC) placement, with mortality rates in pediatric patients reported to reach 50%. Clinical presentation is often nonspecific, and echocardiography remains the diagnostic gold standard. Case report: We present two pediatric cases of CT due to late CVC migration, managed in the pediatric intensive care unit (PICU). The first case involved a 25-day-old neonate with short bowel syndrome who received prolonged parenteral nutrition via CVC. Four days after catheter insertion, the patient developed sudden cardiocirculatory collapse. The second case featured a 2-year-old child with Leigh syndrome who required mechanical ventilation and multimodal pharmacological therapy. Six days after CVC placement, the patient developed acute hemodynamic deterioration. In both cases, echocardiography confirmed CT, while chest radiography suggested intracardiac positioning of the catheter tip. Management and outcome: Emergency pericardiocentesis and advanced cardiopulmonary resuscitation were performed. Despite transient hemodynamic stabilization, both patients developed multiorgan failure with fatal outcomes. Conclusions: CT is a critical complication in pediatric patients with CVCs. Accurate verification of catheter tip position is essential, and intracardiac placement should be avoided. Any sudden clinical deterioration in a patient with a CVC should raise suspicion of late catheter migration and requires immediate life-saving intervention. Full article

Background/Objectives: Early mobilization following open-heart surgery is a key component of postoperative recovery, yet psychological barriers such as kinesiophobia (fear of movement) may limit patient participation. This study examined the association between kinesiophobia and mobilization level in patients after open-heart surgery and explored sociodemographic and clinical correlates of both variables. Methods: A cross-sectional descriptive design was used. The sample comprised 96 adult cardiac surgery patients recruited consecutively from cardiovascular surgery ICUs at two centers in Istanbul—a public training and research hospital and a foundation-affiliated university hospital—between December 2024 and April 2025. Data were collected via a Personal Information Form, the Tampa Scale of Kinesiophobia (TSK), and the Intensive Care Units Mobility Scale (IMS). Analyses (SPSS 25.0) included Mann–Whitney U and Kruskal–Wallis H tests, Pearson correlation with 95% confidence intervals (CIs) calculated via Fisher’s z-transformation, Bonferroni correction for k = 12 subgroup comparisons within each outcome, and a multivariable linear regression adjusted for sex, age, smoking, and history of surgery. Results: Of the 96 patients enrolled, 76.0% were male, with a mean age of 58.30 ± 6.50 years (SD) and a mean body mass index of 27.53 ± 5.84 kg/m². The mean TSK total score was 46.81 ± 6.51 and the mean IMS score was 5.48 ± 0.73. Kinesiophobia and mobilization showed a small inverse association that reached statistical significance (r = −0.104; 95% CI: −0.298 to 0.099; r² = 0.011; p = 0.041), accounting for approximately 1% of the variance in mobilization. After multivariable adjustment, kinesiophobia was no longer a significant predictor (β = −0.092; p = 0.360), whereas smoking (β = −0.279; p = 0.008) and female sex (β = 0.215; p = 0.039) emerged as the strongest independent correlates. Mobilization level differed by gender and smoking, and kinesiophobia level differed by marital status, history of surgery, and family history of heart disease at the uncorrected level; however, none of these subgroup differences remained significant after Bonferroni correction. Conclusions: Higher kinesiophobia scores were associated with lower mobilization levels following open-heart surgery, but the effect size was small and the association did not persist after adjustment for clinical confounders. The cross-sectional design precludes causal inference. Kinesiophobia may be considered as one of several psychosocial factors potentially relevant to postoperative mobilization rather than as a primary determinant. Full article

Background/Objectives: The management of ventricular arrhythmias (VAs) within cardiac intensive care units (CICUs) is undergoing a significant transformation. This review aims to analyze the historical transition from a narrow focus on arrhythmia-specific treatments toward on the multidisciplinary heart rhythm team. Methods: A narrative revies was conducted. Results: Effective management of electrical storm (ES) requires prompt attenuation of sympathetic hyperactivity, with a preference for non-selective beta-blockers and the implementation of deep sedation. The use of mechanical circulatory support (MCS) has emerged as a mechanical antiarrhythmic strategy by facilitating ventricular unloading and reducing myocardial wall stress. Furthermore, early catheter ablation, guided by 3D electroanatomical mapping and advanced imaging, has proven superior to salvage procedures for stabilizing the arrhythmic substrate. Finally, the integration of palliative care ensures ethical stewardship during refractory shock. Conclusions: Modern VAs management in the CICUs represents a convergence of technology, biology, and multidisciplinary coordination. Full article