Search Results (899)

Background: Hypoxic-ischemic brain injury (HIBI) is a feared complication post-cardiac arrest (CA). The timing of brain imaging remains a topic of ongoing debate. Early computed tomography (CT) scans can reveal acute intracranial pathologies but may have limited predictive value due to delayed manifestation of HIBI-related changes. Radiomics analyses present a promising approach to identifying subtle imaging markers, potentially aiding early HIBI detection. Methods: This study retrospectively assessed post-CA patients between 2016 and 2023 who received immediate brain CTs. Patients without acute intracranial pathology on initial scans and who underwent follow-up brain CTs within 14 days post-return of spontaneous circulation (ROSC) were included. Image segmentation involved manual basalganglia segmentation and automated whole-brain segmentation. Radiomics features were calculated using Pyradiomics (v3.0.1) in 3DSlicer (v5.2.2). Feature selection involved reproducibility analysis via ICC and LASSO regression, retaining five features per segmentation method. A logistic regression model for each segmentation method underwent 5-fold cross-validation. Results were summarized with ROC analyses and average sensitivity and specificity. Results: A total of 83 patients (average age: 65 ± 13.3 years, 19 women) with CA and ROSC were included. Follow-up CT scans after 5.2 ± 2.9 days revealed brain edema in 47 patients. The model using manual segmentation achieved an average AUC of 0.76, sensitivity of 0.59, and specificity of 0.78. The automated segmentation model showed an average AUC of 0.66, sensitivity of 0.49, and specificity of 0.68. Conclusions: Radiomics, particularly focused on the basalganglia area in normal-appearing brain CTs after CA and ROSC, may enhance predictive insights for HIBI and the development of brain edema. Full article

Background and Objectives: Ventilator-associated pneumonia (VAP) poses a significant threat to the clinical outcomes and hospital stays of mechanically ventilated patients, particularly those recovering from cardiac arrest. Given the already elevated mortality rates in cardiac arrest cases, the addition of VAP further diminishes the chances of survival. Consequently, a paramount focus on VAP prevention becomes imperative. This review endeavors to comprehensively delve into the nuances of VAP, specifically in patients requiring mechanical ventilation in post-cardiac arrest care. The overarching objectives encompass (I) exploring the etiology, risk factors, and pathophysiology of VAP, (II) delving into available diagnostic modalities, and (III) providing insights into the management options and recent treatment guidelines. Methods: A literature search was conducted using PubMed, MEDLINE, and Google Scholar databases for articles about VAP and Cardiac arrest. We used the MeSH terms “VAP”, “Cardiac arrest”, “postcardiac arrest syndrome”, and “postcardiac arrest syndrome”. The clinical presentation, diagnostic, and management strategies of VAP were summarized, and all authors reviewed the selection and decided which studies to include. Key Content and Findings: The incidence and mortality rates of VAP exhibit significant variability, yet a recurring pattern emerges, marked by prolonged hospitalization and exacerbated clinical outcomes. This pattern is attributed to the elevated incidence of drug-resistant infections and the delayed initiation of antimicrobial treatment. This review focuses on VAP, aiming to offer valuable insights into the efficient identification and management of this fatal complication in post-cardiac arrest patients. Conclusion: The prognosis for survival after cardiac arrest is already challenging, and the outlook becomes even more daunting when complicated by VAP. The timely diagnosis of VAP and initiation of antibiotics pose considerable challenges, primarily due to the invasive nature of obtaining high-quality samples and the time required for speciation and identification of antimicrobial sensitivity. The controversy surrounding prophylactic antibiotics persists, but promising new strategies have been proposed; however, they are still awaiting well-designed clinical trials. Full article

Despite the increasing incidence of myocardial infarction among middle-aged adults, studies analyzing their recognition of early myocardial infarction symptoms and cardiopulmonary resuscitation training experiences are lacking. This study aimed to utilize data from the 2022 Korea Community Health Survey to assess the level of recognition of early myocardial infarction symptoms among middle-aged adults and identify factors affecting cardiopulmonary resuscitation performance based on training experiences. Secondary data analysis was conducted to assess 99,945 adults aged 40–64 years on their recognition of early myocardial infarction symptoms and the influence of cardiopulmonary resuscitation training experience on their performance ability. Data analysis was performed using multinomial logistic regression, followed by assessing the area under the curve and visualizing the receiver operating characteristic curve to evaluate the model’s performance. The recognition of early myocardial infarction symptoms improved; the cardiopulmonary resuscitation performance ability increased by 22%. The absence of training with mannequins and automated external defibrillators resulted in a 79% and 77% decrease in cardiopulmonary resuscitation performance ability, respectively. Enhancing the recognition of early myocardial infarction symptoms and providing hands-on cardiopulmonary resuscitation training is vital for improving cardiopulmonary resuscitation performance in middle-aged adults. Effective cardiopulmonary resuscitation training programs can facilitate the rapid identification of patients who have had a cardiac arrest, bolster emergency response capabilities, and enhance the overall social safety net. Full article

Background and Clinical Significance: Aceruloplasminemia (ACP), a member of the neurodegeneration with brain iron accumulation (NBIA) spectrum of disorders, is a rare disorder caused by mutations in the ceruloplasmin (CP) gene. Iron accumulation in various organs, including the brain, liver, eyes, and heart, can lead to a broad clinical spectrum. Here, we report the first case of ACP in Greece. Case Presentation: Our patient was a 53-year-old male who was referred to our movement disorders center for a 6-month history of mild, unspecific, episodic dizziness and postural instability, and attention and memory deficits. Brain MRI revealed significant iron accumulation in multiple brain regions, including the dentate nuclei, cerebellar cortex, basal ganglia, thalamus, brainstem nuclei, and hypothalamus. These findings were particularly evident in susceptibility-weighted images. Fundoscopy revealed a normal retina, optic nerve, and macula. Whole-exome sequencing revealed a novel homozygous frameshift mutation in the CP gene [NM_000096.3:p.Thr3232fs (c.9695delC)]. This mutation has not been previously reported and is predicted to result in premature protein termination, supporting its pathogenic nature. Laboratory tests showed no anemia but revealed significantly elevated serum ferritin and low serum iron. Subsequent testing revealed extremely low serum CP and low serum copper. Despite less involvement of the myocardium, our patient succumbed to cardiac arrest. Conclusions: ACP should be considered in cases with minor neurological signs and symptoms. Brain MRI plays a significant role in early diagnosis. Close cardiac monitoring is also important. Full article

Background: Congenital coronary artery anomalies (CAAs) are a significant cause of sudden cardiac death and a key factor in determining athletes’ eligibility for competitive sports. Their prevalence varies with diagnostic modalities and may present as asymptomatic or with life-threatening ischemic or arrhythmic events. This case series highlights the diverse manifestations of CAAs and the clinical approaches used to determine sports eligibility. Cases description: Five competitive athletes with different CAAs are presented. These cases include anomalous coronary origins, intramyocardial bridges, and coronary fistulas. Diagnostic tools, including coronary CT angiography (CCTA), cardiac magnetic resonance imaging (CMR), and stress tests, were essential in evaluating these anomalies and determining treatment strategies. In some cases, such as intramyocardial bridges, surgical intervention was necessary, while others required conservative management or exclusion from competitive sports. Conclusions: CAAs require individualized care based on risk stratification through advanced imaging techniques and functional assessment. Surgical interventions are reserved for high-risk anomalies, while others may be managed conservatively. Early detection and tailored management are crucial for ensuring athletes’ safety, and ongoing research is needed to optimize long-term outcomes. Full article

The use of extracorporeal membrane oxygenation (ECMO) has emerged as a rescue intervention for hemodynamically unstable patients and prophylactic intraprocedural hemodynamic support in the cardiac catheterization laboratory. The prompt initiation of ECMO provides immediate hemodynamic support and allows for the completion of bridging and/or life-saving interventions. However, there are no clinical practice guidelines for the use of extracorporeal support in this area. This review examines the role of patient selection and therapeutic intervention for extracorporeal support in the cardiac catheterization laboratory. Full article

Background/Objectives: Previously, we showed that blood-based polarizing cardioplegia exerted beneficial cardioprotection during hypothermic ischemia; however, these positive effects of blood-based polarizing cardioplegia were reduced during normothermic ischemia compared to blood-based hyperkalemic (depolarizing) cardioplegia. This study compares crystalloid polarizing cardioplegia to crystalloid depolarizing cardioplegia in a normothermic porcine model of cardiopulmonary bypass; Methods: Twelve pigs were randomized to receive either normothermic polarizing (n = 7) or depolarizing (n = 5) crystalloid cardioplegia. After the initiation of cardiopulmonary bypass, normothermic arrest (34 °C, 60 min) was followed by 60 min of on-pump and 90 min of off-pump reperfusion. Myocardial injury (arterial CK-MB), hemodynamic function, and the energy status of the hearts were measured; Results: The arterial release of CK-MB was comparable between groups (p = 0.78) during reperfusion. During 150 min of reperfusion, systolic left ventricular pressure (p = 0.01) and coronary flow (p = 0.009) were increased, and wedge pressure (p = 0.04) was decreased in the polarized group. Further hemodynamic parameters (cardiac output, stroke volume) and high-energy phosphate levels were similar between groups. The requirement for noradrenaline administration during reperfusion was significantly higher (p = 0.013) in the polarized group; Conclusions: Under normothermic conditions and despite a similar increase in levels of cardiac CK-MB, crystalloid polarizing cardioplegia protected systolic and diastolic cardiac function after 60 min of cardiac arrest. These results suggest beneficial effects for polarizing cardioplegia; clinical studies are required to confirm these effects. Full article

Aim: Few studies have investigated the differential effects of targeted temperature management (TTM) according to the severity of the condition in pediatric patients with post-cardiac arrest syndrome (PCAS). This study was aimed at evaluating the differential effects of TTM in pediatric patients with PCAS according to a risk classification tool developed by us, the rCAST. Methods: We used data from a nationwide prospective registry for out-of-hospital cardiac arrest (OHCA) patients in Japan. We classified eligible pediatric PCAS patients (aged ≤ 18 years) into quintiles based on their rCAST scores and evaluated the effect of TTM on the neurological outcomes in each severity group. Then, focusing on the severity group that appeared to benefit from TTM, we also evaluated the effect of TTM by propensity score analysis. Good neurological outcome was defined as a score on the Cerebral Performance Category or Pediatric Cerebral Performance Category scale of ≤2 at 30 days. Results: Among 1526 OHCA pediatric patients enrolled in the registry, the data of 307 PCAS patients were analyzed. None of the patients in the fifth quintile (rCAST ≥ 18.5) showed a good neurological outcome, regardless of whether they received TTM or not (0% [0/20] vs. 0% [0/73]). The propensity score analysis showed that TTM was significantly associated with a good neurological outcome in patients with rCAST scores in the first to fourth quintile (odds ratio: 1.21 [1.04–1.40], p = 0.014). Conclusions: TTM was significantly associated with good neurological outcomes in pediatric PCAS patients with rCAST scores of ≤18.0. Full article

Introduction: Non-compressible torso hemorrhage (NCTH) is a major cause of preventable mortality in trauma, particularly when immediate surgical intervention is not available. Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) has emerged as a promising technique to control severe hemorrhaging and stabilize patients until definitive surgical care can be performed. Case Presentation: We report the case of a 45-year-old woman who sustained multiple traumatic injuries—including thoracic, pelvic, and aortic damage—after a fall from approximately 5 m in an apparent suicide attempt. She arrived at a secondary-level trauma center in profound hemorrhagic shock, unresponsive to standard resuscitation. Interventions: As the patient’s condition deteriorated to cardiac arrest, an emergent REBOA procedure was performed by emergency physicians. This intervention rapidly restored hemodynamic stability, enabling damage control resuscitation and safe transfer to a Level 1 Trauma Center for definitive surgical management, including thoracic endovascular aortic repair and splenectomy. Outcomes: After prolonged intensive care, the patient recovered sufficiently to be discharged for rehabilitation. This case illustrates the life-saving potential of early REBOA deployment in a non-surgical, resource-limited setting to bridge patients to definitive care. Conclusions: This case supports integrating REBOA into emergency trauma protocols, particularly in centers without immediate surgical capabilities. Further research is warranted to refine REBOA deployment strategies, balloon positioning, patient selection, and the role of imaging guidance. Full article

Background: Cangrelor provides rapid platelet inhibition, making it a potential option for out-of-hospital cardiac arrest (OHCA) survivors undergoing percutaneous coronary intervention (PCI). However, clinical data on its use after OHCA are limited. This study investigates in-hospital outcomes of cangrelor use in this population. Methods: We conducted a prospective, observational study involving OHCA patients from the Lombardia CARe Registry (January 2015–December 2022) who underwent PCI in seven centers in Northern Italy. Propensity score (PS) matching compared patients who received cangrelor to those who did not. Logistic regression tested associations between cangrelor and discharge outcomes. Results: Of 612 OHCA patients admitted, 414 (67.4%) underwent PCI with known antithrombotic therapy, of whom 34 (8.2%) received cangrelor. Radial access was more common in the cangrelor group, which also had a higher troponin peak and a final TIMI flow grade of 3. Survival at discharge was 82.4% in the cangrelor group, compared to 65.3% in the no-cangrelor group (p = 0.043). Univariable logistic regression showed that cangrelor use was associated with higher survival at discharge (OR 2.5; 95% CI: 1.1–6.1, p = 0.049). After multiple PS matchings, cangrelor remained associated with better survival (OR 2.07; 95% CI: 1.16–2.98). Major bleeding rates were higher in the cangrelor group, even after adjusting for baseline bleeding risk (OR: 7.0; 95% CI: 2.9–17.0; p < 0.001). Conclusions: In OHCA patients undergoing PCI, cangrelor use was linked to improved in-hospital survival but higher major bleeding, suggesting a potential net clinical benefit. Full article

Background/Objectives: Heart failure is the leading cause of hospital admission and mortality. Racial disparities have been demonstrated in various cardiovascular disorders; however, the data for in-hospital outcomes, complications, and procedural rates are limited. Methods: Utilizing the National Inpatient Sample (NIS) database, this retrospective cohort study included adult patients admitted with a principal diagnosis of heart failure. Coding for race and ethnicity in the NIS combines self-reported race and ethnicity provided by the data source into 1 data element (“RACE”). We compared the outcomes between various racial groups, focusing on mortality, the length of stay (LOS), hospital charges, and complications. Differences in the utilization of advanced therapies, including implantable cardiac defibrillators, cardiac resynchronization therapy (CRT), ventricular assist devices (VADs), and heart transplant, were also analyzed. Results: Out of 1,107,860 patients hospitalized with heart failure, 715,345 (64.57%) patients were White, 244,394 (22.06%) patients were Black, and 97,063 (8.31%) patients were Hispanic. Compared to White people, the odds of in-hospital mortality were lower among Black (aOR 0.74; 95% CI 0.68–0.81; p < 0.001) and Hispanic (aOR 0.78; 95% CI 0.69–0.88; p < 0.001) people. Complication rates including cardiogenic shock were found to be significantly lower in Black people (aOR 0.86; 95% CI 0.77–0.96; p < 0.001) and in Hispanic (aOR 0.72; 95% CI 0.63–0.81; p < 0.001) people. The rates of acute respiratory failure were also lower in Black (aOR 0.72; 95% CI 0.69–0.74; p < 0.001) and Hispanic (aOR 0.77; 95% CI 0.73–0.81; p < 0.001) people as opposed to White people. However, Black people were found to have higher rates of acute kidney injury (aOR 1.11; 95% CI 1.07–1.14; p < 0.001) and cardiac arrest (aOR 1.17; 95% CI 1.03–1.34; p = 0.02) compared to White people. Black people were less likely to receive advanced interventions, including cardiac resynchronization therapy (aOR 0.71; 95% CI 0.60–0.83; p < 0001), a ventricular assist device (aOR 0.45; 95% CI 0.34–0.59; p < 0.001), and heart transplants (aOR 0.57; 95% CI 0.42–0.77; p < 0.001), than White people. Hispanic people were found to have lower rates of ventricular assist device (aOR 0.49; 95% CI 0.33–0.72; p < 0.001) use than White people. Conclusions: These findings highlight significant racial disparities in mortality, secondary outcomes, and advanced therapy utilization in heart failure admissions. Further research is needed to identify the root factors for these disparities in order to guide targeted interventions to reduce this racial gap. Full article

Background and Objectives: Fever in patients who have suffered an out-of-hospital cardiac arrest (OHCA) has been linked to poor clinical outcomes, as a fever can exacerbate neurological damage, increase metabolic demands, and trigger inflammatory responses. This study evaluates the impact of the COVID-19 outbreak and associated fevers on OHCA outcomes and examines how they can worsen patient prognosis. Materials and Methods: Our retrospective observational analysis used data from the National Emergency Department Information System (NEDIS), comprising adult OHCA patients at 402 EDs in Korea between 27 January and 31 December 2020 (COVID-19 pandemic period) and the corresponding period in 2019 (pre-COVID-19). The primary outcome was in-hospital mortality, with the COVID-19 outbreak as the main exposure variable and fever as an important interaction variable. We employed multilevel multivariate logistic regression with an interaction term (year of visit × fever) to examine the effects of COVID-19 and fever on mortality. Risk-adjusted mortality rates were calculated, and a difference-in-difference analysis evaluated the impact of COVID-19 on excess mortality by fever status. Results: During COVID-19, in-hospital mortality was higher among OHCA patients compared to the pre-pandemic period (adjusted OR 1.22, 95% CI 1.11–1.34), particularly among febrile patients (adjusted OR 1.40, 95% CI 1.24–1.59). Interaction analysis revealed that COVID-19 disproportionately increased mortality in febrile OHCA patients compared with non-febrile patients (difference-in-difference: 0.8%, 95% CI 0.2–1.5). Conclusions: Our study found that the COVID-19 pandemic significantly increased mortality among OHCA patients, with febrile patients experiencing disproportionately worse outcomes due to systemic delays and pandemic-related disruptions. Full article

Sodium bicarbonate has been used in the treatment of different pathologies, such as hyperkalemia, cardiac arrest, tricyclic antidepressant toxicity, aspirin toxicity, acute acidosis, lactic acidosis, diabetic ketoacidosis, rhabdomyolysis, and adrenergic receptors’ resistance to catecholamine in patients with shock. An ongoing debate about bicarbonate’s efficacy and potential harm has been raised for decades because of the lack of evidence supporting its potential efficacy. Despite the guidelines’ restrictions, sodium bicarbonate has been overused in clinical practice. The overuse of sodium bicarbonate could be because of the desire to correct the arterial blood gas parameters rapidly instead of achieving homeostasis by treating the cause of the metabolic acidosis. Moreover, it is believed that sodium bicarbonate may reverse acidosis-induced myocardial depression, hemodynamic instability, ventricular arrhythmias, impaired cellular energy production, resistance to catecholamines, altered metabolism, enzyme suppression, immune dysfunction, and ineffective oxygen delivery. On the other hand, it is crucial to pay attention to the potential harm that could be caused by excessive sodium bicarbonate administration. Sodium bicarbonate may cause paradoxical respiratory acidosis, intracellular acidosis, hypokalemia, hypocalcemia, alkalosis, impaired oxygen delivery, cerebrospinal fluid acidosis, and neurologic dysfunction. In this review, we discuss the pathophysiology of sodium bicarbonate-induced adverse effects and potential benefits. We also review the most recent clinical trials, observational studies, and guidelines discussing the use of sodium bicarbonate in different pathologies. Full article

Background/Objectives: Sudden cardiac arrest (SCA) is a severe medical condition involving the cessation of the heart’s mechanical activity. Following the chain of survival, which includes early recognition and calling for help, early initiation of cardiopulmonary resuscitation (CPR), early defibrillation, and post-resuscitation care, offers the greatest chances of saving a person who has experienced SCA. The aim of this study was to analyze cases of out-of-hospital cardiac arrest (OHCA) and assess the actions taken by bystanders. Methods: The input for analysis consisted of 49,649 dispatch records from the emergency medical team (EMT) at the Voivodeship Emergency Medical Station in Bialystok in 2018–2019. Results: Among the patients where bystanders performed CPR, the return of spontaneous circulation (ROSC) occurred in 30.53% of cases, whereas in the cases where the bystander did not perform CPR, ROSC occurred in 2.35% of cases. When cardiac arrest rhythm was ventricular fibrillation (VF) or pulseless ventricular tachycardia (pVT), ROSC occurred in 58.62% of cases, while there was asystole or pulseless electrical activity (PEA) present, ROSC occurred in 26.56% of cases. In patients who experienced OHCA in a VF/pVT rhythm and who underwent intubation, ROSC occurred in 58.73% of cases, whereas in patients who underwent alternative procedures for airway management, ROSC occurred in 83.33% of cases. Conclusions: The most significant factor influencing the occurrence of ROSC in patients is CPR initiation by bystanders. The presence of a rhythm that requires defibrillation increases the likelihood of achieving ROSC in the patient. Alternative methods for airway management appear to be more beneficial in VF/pVT rhythms. Full article

Background/Objectives: Cardiac arrest may cause significant hypoxic–ischemic injury leading to coma, seizures, myoclonic jerks, or status epilepticus. Mortality is high, but accurate prognostication is challenging. A multimodal approach is employed, in which electroencephalography (EEG) forms a key part with several recognised patterns of prognostic significance. Methods: In this retrospective study, clinical and qualitative features of the EEG of patients admitted to the Intensive Care Unit (ICU) at Kingston General Hospital following cardiac arrest from 2017 to 2020 were reviewed. The study included 81 adult patients (≥18 years). Outcome was assessed using the Cerebral Performance Category (CPC) as 1–2 (favourable) or 3–5 (unfavourable). EEG patterns were divided into groups within the highly malignant, malignant and benign patterns described in the literature. Results: There were a wide range of causes and 22% had a favourable outcome. Highly malignant, malignant and benign patterns were associated with survival in 0%, 70% and 100%, respectively, and favourable outcomes in 0%, 48% and 100%. All patients with seizures died, and 94% with myoclonus had unfavourable outcomes. In contrast, EEG reactivity and improvement on follow-up EEG were associated with a favourable outcome. Conclusions: Highly malignant EEG, seizures and myoclonus were associated with unfavourable outcomes, while patients with malignant EEG had better outcomes. Full article