Surgery Care Research Articles

Value in acute care surgery, part 4: The economic value of an acute care surgery service to a hospital system

ABSTRACT The Healthcare Economics Committee of the American Association for the Surgery of Trauma has published a series of three articles on the topic of value in acute care surgery (ACS). In this series, the key elements of value, cost and outcomes, and the impact of stakeholder perspective on what constitutes high-value care are discussed. The fourth article in this series continues the discussion by focusing on the unique economic value that an ACS service brings to a hospital system and its patients. Characterized by the immediate 24-hour availability of surgeons trained in trauma management, emergency general surgery, and surgical critical care, acute care surgeons extend the benefits of surgical rescue and critical care to all hospitalized patients. As such, an ACS service acts as a vital part of a hospital's infrastructure to successfully care for complex and seriously ill patients, in addition to enabling the establishment of other, high revenue-generating services such as vascular, transplant, and complex oncologic surgery programs. The trauma service acts as intake for patients that lead to downstream revenue creation by other disciplines such as orthopedic and neurological surgery, while trauma center designation itself results in dedicated state funding to ensure trauma readiness in many states in the United States. The traditional “value equation” in health care of outcomes achieved per dollar spent is ill-suited to capture many of these unique aspects and benefits of ACS. This article provides the background to understand the economic value of an ACS service and future directions toward improving overall value of care. LEVEL OF EVIDENCE Economic & Value-based Evaluations: Level IV.

Sepsis management of the acute care surgery patient: What you need to know

ABSTRACT Increasingly, acute care surgeons have taken over the management of general surgery consult patients in the hospital, many of whom present with sepsis and/or in septic shock. In this article, we will discuss the intricacies of sepsis management for acute care surgery. The underlying tenants of sepsis management will be outlined with specific attention to the nuances associated with surgical patients. Ultimately, when a surgical problem is identified, this management will culminate with the need for specific source control — the unique aspect when a surgical as opposed to a medical disease process is the cause of sepsis. However, surgeons must also be competent in the other components of sepsis management including antimicrobial therapy and hemodynamic support. This article is designed for the surgeon or for any provider caring for patients with a potential acute care surgical problem, recognizing that different practice settings will vary with regard to resource availability for laboratory tests, invasive monitoring, diagnostics, and surgeon availability.

NIMG-50. MULTIPARAMETRIC MRI DISTINGUISHES NEURONAL AND IMMUNE SIGNATURES IN INVASIVE HIGH-GRADE GLIOMA RIM THROUGH GRAPH NETWORK ANALYSIS

Abstract BACKGROUND Standard of care surgery for high grade glioma (HGG) employs Magnetic Resonance Imaging to identify the contrast enhancing (CE) core for resection, leaving a non-enhancing (NE) invasive rim of tumor which contributes to recurrence. Multi-parametric MRI (mpMRI) has recently been used to map regional biological heterogeneity of neuronal and immune signatures in HGG, and continues to offer a promising strategy for non-invasive surveillance of tumor progression. Here, we present a graph network analysis relating mpMRI to biological signatures in the NE tumor rim and show the utility of communities of imaging features for discriminating tumor phenotypes. METHODS 53 mpMRI features across 101 spatially-localized RNA-sequenced biopsy samples from 64 patients with IDH-wt HGG were represented as nodes within a Neo4j graph network. Modularity optimization was used to identify communities of densely connected nodes. Communities of nodes representing high proportions of NE samples (one-tailed test) were kept for further analysis. Gene set enrichment analysis (GSEA) on samples within selected imaging communities was analyzed for biological process enrichment using clusterProfiler. Single sample GSEA (ssGSEA) using ssGSEA2 was used to annotate neuronal and immune cell states across samples within selected communities. mpMRI feature selection within each community identified the most relevant imaging features for isolating samples classified into neuronal and immune cell states. RESULTS 11 imaging communities gathered a high proportion of NE samples. Three NE communities showed significant enrichment of neuronal signatures, while one showed significant enrichment of immune pathways. One neuronal-predominant community showed unique upregulation of 14 pathways related to neuronal migration/astrocyte projection. CONCLUSION Network imaging communities can identify clusters of NE glioma samples showing contrasting neuronal and immune signatures, including distinct upregulation of migration and projection pathways. Mapping these imaging feature communities to specific biological processes implicated in glioma progression may aid treatment planning and prognostication for glioma patients.

ANGI-10. NETWORK ANALYSIS ESTABLISHES CSF2RA’S REGIONAL INFLUENCE ON HYPOXIA RESPONSE IN THE INVASIVE RIM OF HIGH GRADE GLIOMA

Abstract BACKGROUND High-grade glioma (HGG) is the most common and aggressive form of primary brain cancer. Standard of care surgery employs Magnetic Resonance Imaging to identify the contrast enhancing (CE) core for resection, leaving a non-enhancing (NE) invasive rim of tumor which contributes to recurrence. The hypoxic tumor microenvironment is thought to drive invasion into healthy brain, and understanding cellular responses to hypoxia may provide insight into combatting recurrence. Here, we apply a graph network to integrate regionally heterogeneous data from a unique dataset of spatially-localized CE and NE biopsies from a large cohort of patients with HGG to identify gene networks regulating hypoxia response and invasion. METHODS RNA-sequencing of 1159 differentially expressed genes across 159 IDH-wt biopsies (74 patients) from NE/CE regions were represented as nodes in a Neo4j graph network. Candidate genes for network random walks occurred exclusively within NE communities detected by modularity optimization and were localized by cell-type using single-cell RNA-sequencing (scRNAseq). CSF2RA was selected as source (walk length = 5; 10,000 walks/source node). Frequently occurring genes (one-tailed test) in walks were ranked by correlation with CSF2RA expression in NE samples and analyzed by gene set enrichment analysis for biological processes (clusterProfiler). CSF2RA and hypoxia gene expression were visualized with DoHeatmap in composite NE/CE scRNAseq profiles. RESULTS CSF2RA, an immune receptor, was upregulated (logFC = 0.789) in NE samples, scRNAseq myeloid populations, and Glycolytic/Plurimetabolic glioma subtype. CSF2RA random walk genes (n=46) enriched metabolic/proliferative signatures. CSF2RA expression correlated negatively with hypoxia genes globally and regionally (NE/CE), while NE/CE scRNAseq revealed distinct cellular expression patterns of CSF2RA and hypoxia response genes. CONCLUSION CSF2RA expression may prime NE glioma cells for invasion by altering hypoxia response. The genetic network bridging CSF2RA and hypoxia response may be a targetable mechanism of tumor recurrence.

ANGI-09. GRAPH NETWORK ANALYSIS IDENTIFIES GENETIC COMMUNITIES OF CSF2RA AND RBFOX1 AS REGULATORS OF INVASIVE HIGH-GRADE GLIOMA BIOLOGY

Abstract BACKGROUND High-grade glioma (HGG) is the most common and aggressive form of primary brain cancer. Standard of care surgery employs Magnetic Resonance Imaging to identify the contrast enhancing (CE) core for resection, leaving a non-enhancing (NE) invasive rim of tumor which contributes to recurrence. Recent multi-omics analyses identified predominant neuronal and immune signatures within NE tumor. Here, we apply a graph network to integrate regionally heterogeneous data from a unique dataset of spatially-localized CE and NE biopsies from a large cohort of patients with HGG. METHODS RNA-sequencing of 1159 differentially expressed genes across 159 IDH-wt biopsies (74 patients) from NE/CE regions were represented as nodes in a Neo4j network. Candidate genes for network random walks occurred exclusively within NE communities detected by modularity optimization and localized by cell-type using single-cell RNA-sequencing (scRNAseq). CSF2RA and RBFOX1 were selected as sources (walk length = 5; 10,000 walks/source node). Frequently occurring genes (one-tailed test) in walks were ranked by correlation with CSF2RA/RBFOX1 expression in NE samples and analyzed by gene set enrichment analysis for biological processes (clusterProfiler). Random walk genes were visualized (DoHeatmap) against composite NE/CE scRNAseq profiles. RESULTS CSF2RA and RBFOX1 were upregulated in NE samples (logFC = 0.789, 1.85). Upregulation of CSF2RA, an immune receptor, in the Glycolytic/Plurimetabolic and RBFOX1, a neurodevelopmental regulator, in the Neuronal glioma subtypes were observed in NE samples (ANOVA p < 0.05). CSF2RA walk genes (n=46) enriched metabolic/proliferative signatures, while RBFOX1 walk genes (n=201) showed neurodevelopmental upregulation. scRNAseq localized CSF2RA to monocytes/macrophages while RBFOX1 was expressed in distinct astrocyte/neuroepithelial populations. CONCLUSION CSF2RA and RBFOX1’s gene networks modulate immune and neurodevelopmental processes influencing glioma progression in NE tumor. Understanding the region-specific roles of these networks may offer strategies for targeting cells in the invasive glioma rim.

Impact of an Acute Care Surgery Clinical Pathway on Patient Outcomes in Acute Appendicitis.

Objectives: Acute care surgery (ACS) encompasses surgical critical care, emergency general surgery, and the surgical management of trauma. Following ACS implementation at our institution, we developed a perioperative clinical pathway for acute appendicitis (AA) to improve efficiency and standardize post-operative care. The purpose of our study is to assess patient outcomes utilizing our ACS clinical pathway for patients with AA. Methods: This is a retrospective cohort study involving patients admitted to our tertiary care facility with AA who underwent appendectomy. Patients were classified by pre-implementation (January 1, 2016-July 31, 2018) and post-implementation (August 1, 2018-December 31, 2020) of our ACS clinical pathway. The primary outcome was hospital length of stay (LOS). Statistical analysis was performed using SAS with a p-value <0.05 determined as significant. Results: Of the 492 patients included, 225 were in the pre- and 267 were in the post-implementation cohorts. Hospital LOS was substantially decreased in the post-implementation cohort (31.2 vs. 50.4 h, p < 0.001). The post-implementation group had a substantial decrease in computed tomography (CT) to operating room (OR) start time (6.81 vs. 11.4 h, p < 0.001), CT to antibiotic agents' administration (2.20 vs. 3.37 h, p < 0.001), inpatient opioid utilization (125 morphine equivalents [ME] vs. 172 ME, p < 0.001), and discharge antibiotic agents' prescription rates (23.6% vs. 30.7%, p = 0.077). Recovery unit discharges (20 vs. 9%, p < 0.001) were increased in the post-implementation cohort. Conclusion: Our ACS clinical pathway for AA resulted in earlier surgical intervention, enhanced opioid and antimicrobial stewardship, and gains in surgical care efficiencies.

Long-term clinical outcomes and healthcare resource utilization in male and female patients following hospitalization for heart failure.

Heart failure (HF) is a leading cause of hospitalization, and sex differences in care have been described. We assessed sex-specific clinical outcomes and healthcare resource utilization following hospitalization for HF. This was an exploratory analysis of patients hospitalized for HF across 10 Canadian hospitals in the Patient-Centered Care Transitions in HF (PACT-HF) cluster-randomized trial. The primary outcome was all-cause mortality. Secondary outcomes included all-cause readmissions, HF readmissions, emergency department (ED) visits, and healthcare resource utilization. Outcomes were obtained via linkages with administrative datasets. Among 4441 patients discharged alive, 50.7% were female. By 5 years, 63.6% and 65.5% of male and female patients, respectively, had died (p = 0.19); 85.4% and 84.4%, respectively, were readmitted (p = 0.35); and 72.2% and 70.9%, respectively, received ED care without hospitalization (p = 0.34). There were no sex differences in mean [SD] number of all-cause readmissions (males, 2.8 [7.8] and females, 3.0 [8.4], p = 0.54), HF readmissions (males, 0.9 [3.6] and females, 0.9 [4.5], p = 0.80), or ED visits (males, 1.8 [11.3] and females, 1.5 [6.0], p = 0.24) per person. There were no sex differences in mean [SD] annual direct healthcare cost per patient (males, $80 334 [116 762] versus females, $81 010 [112 625], p = 0.90), but males received more specialist, multidisciplinary HF clinic, haemodialysis, and day surgical care, and females received more home visits, continuing/convalescent care, and long-term care. Annualized clinical events were highest in first year following index discharge in both males and females. Among people discharged alive after hospitalization for HF, there were no sex differences in total and annual deaths, readmissions, and ED visits, or in total direct healthcare costs. Despite similar risk profiles, males received relatively more specialist care and day surgical procedures, and females received more supportive care. ClinicalTrials.gov NCT02112227.

Safety of thyroidectomy as day care surgery at a rural setting in Eastern Uganda.

The practice of day care surgery is less embraced in many low-middle-income countries (LMIC), and even less for some procedures considered major such as thyroidectomy. Here we examine the safety of day care thyroidectomy at Kyabirwa Surgical Center, a stand-alone day care surgery center in rural Eastern Uganda. This was a retrospective cohort study conducted between 2019 and 2023. All patients who had day care thyroidectomy were included. Demographics, diagnosis, investigation findings, pathology reports, and surgery outcomes were collected. Postoperative follow-up data up to 30days were also collected. Data were analyzed using R version 4.3.2. A total of 51 patients underwent same-day thyroidectomy, with an average age of 44.9±12.1years and 98% female. Procedures included total thyroidectomy (5, 9.8%), subtotal thyroidectomy (26, 51.0%), and lobectomy (20, 39.2%). Average size of the glands was 7.9±2.21cm. The majority 46 (90.2%) were of benign pathology. All patients were discharged by the evening of the same day. Complications encountered included hypocalcemia (1), hypertrophic scar (1), seroma (2), and transient recurrentlaryngeal nerve injury (1). Overall complications rate was 9.8%. Gland size was statistically significant between patients with no complications (7.68±2.06cm) versus complications (9.90±2.82, p<0.05). With overall low complication rates, these findings suggest that thyroidectomy can safely be performed on a day care basis in a rural LMIC setting with suboptimal health care delivery.

Impact and determinants of depression in cardiac hospitalized patients

Abstract Depression increases cardiovascular risk and involves worse clinical outcomes. Little attention is paid to it in hospitalized patients. We studied prevalence and determinants of depression in this group, in order to select patients for further specific management. Methods Consecutive patients admitted to Cardiology wards were included. Cardiovascular risk factors, clinical and psychosocial data were collected. Self perceived mental and physical health quality were assesed by 12-item Short Form survey (SF-12), and Hospital Anxiety and Depression Scale (HADS) questionnaires were administered. Statistical analysis was performed using Spearman´s correlation, Mann-Whitney and Fisher tests, and Mantel-Cox, linear and logistic regression analyses. Results 170 consecutive patients, median age 74.5 (67.2-81.1), 59.4% male, were included. Most common pathologies were heart failure (44.7%) and coronary syndroms (28.8%). According to HADS results, depression was probable (score &amp;gt;10) in 10%, and at least possible (score &amp;gt; 8) in 27.1%. Both increased duration of hospitalization (Median 14 vs 7 days;p=0.016 and 11 vs 7 days;p=0.005 respectively). Anxiety was present in 16.5 % for probable case and 34.1% for possible case, with no significant change in median duration of hospitalization. 22.9% of patients were under antidepressant treatment, and 24% under anxiolytics, but they were added to treatment only in 1% and 7% respectively. No other not pharmacological measure was initiated. Self perceived mental health was diminished in probable depression (mean difference 14.9%;95%IC 9.7-20.2;p&amp;lt;0.001). Self perceived physical health was also lower (mean difference 6.4%;95%CI:1.1-11.8;p=0.016). Patients with depression were a mean of 5.6 years older (95%CI 1.4-9.8;p=0.032). Less than primary education (OR 5.69 (p 0.021), and Previous hospital admission OR 3.2 (1.0-10.3;p=0.034) increased the risk of depression in univariate analysis. By multivariate analysis, determinants of depression were anxiety (OR 22.5;95%CI 5.9-85.6;p&amp;lt;0.0001), need for surgery (OR 12.3;95%IC 2.1-73.2;p=0.009), need for intensive care unit surveillance (OR 4.2;95%CI 1.1-15.8;p=0.039), and age (OR 1.1;95%IC 1.0-1.2;p=0.001. AUC was 0.89;95%CI 0.81-0.96;p&amp;lt;0.0001. There was no difference in civil status, gender, income level, living accompanied, number of comorbidities, cardiovascular risk factor or reason for hospital admission. Conclusions Depression was prevalent in our hospitalized cardiac patients,in spite of previous pharmacological treatment. It prolongs duration of stay and impacts negatively in self perceived mental and physical health. Risk is increased in older people requiring intensive care surveillance or surgery, and specially by anxiety. These patients could benefit from a preventive multifactorial approach. Attention should also be paid to patients with a previous hospitalization and low educational level.ROC curve for multivariate model

Partial Occlusion, Less AKI: an AORTA Registry Analysis of pREBOA-PRO

Abstract Background Non-compressible torso hemorrhage remains a leading cause of potentially preventable deaths. Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) has emerged as an adjunct temporizing hemorrhage control. The complete occlusion strategy with the ER-REBOA catheter can cause distal ischemia when used for longer than 30 minutes. To specifically address this limitation, the pREBOA-PRO catheter was developed. The objective of the current study is to investigate the impact of longer, partial occlusion times provided by pREBOA-PRO on acute kidney injury and mortality. Methods This is a retrospective analysis of the Aortic Occlusion for Resuscitation in Trauma and Acute Care Surgery (AORTA) registry as of August 2023. Patients in the pREBOA-PRO group (n = 110) receiving partial occlusion in Zone 1 were contrasted to patients in the ER-REBOA group (n = 752) treated with complete occlusion in Zone 1. Between-group comparisons included demographics, clinical presentation, aortic occlusion (AO) strategy, clinical complications, and mortality. Results Demographics, clinical presentation, and mortality were indistinguishable between groups, except for age which was higher in the ER-REBOA group (44 vs. 38, p &lt; 0.002). The partial AO strategy was employed more often in the pREBOA-PRO group (87% vs 33%, p &lt; 0.05) and for longer periods (59 min vs. 50 min, p &lt; 0.003). In contrast, AKI occurred less frequently in the pREBOA-PRO group (19% vs. 33%, p &lt; 0.05). Conclusions The more frequently partial and longer occlusion times in Zone 1 with the use of pREBOA-PRO resulted in lower AKI incidence suggesting that this newer device is a safer extended bridge to hemorrhage control.

An audit to assess the clinical use of blood and blood components at a tertiary care hospital

An understanding of trends in blood and its product usage profile and current usage can help predict future trends in demand and help to put efforts to reduce use in particular areas. Present study aimed to assess the use of blood and blood components issued by blood bank and indication for selection of specific blood products. The present cross sectional observational time bound study was conducted at Father Muller Medical College &amp; Hospital, which included all the patients to whom the whole or blood component are issued from blood between Jan 2016 to Jan 2020. All the units of blood and blood components issued to outside hospitals and institutions were excluded. A total of 20000 components were dispatched to 5002 patients request for the blood components from the blood bank, 2968 were males and 2032 were female patients (male to female ratio of 1.46:1). Highest request for blood components for transfusion was received from Medicine department and allied with 6063 units, followed with various Intensive care units (4477 units), oncology department (5729 units), OBG (1841 units), orthopaedics (1248 units) and surgery (453 units). The most common diagnosis for patients requiring blood components was haematological causes or Bleeding followed by elective surgery. Auditing the use of blood, its components and indications for their use by the various departments of the hospital has helped to finding the trend of number of blood.

Testing and Evaluation of Health Care Applications of Large Language Models

Large language models (LLMs) can assist in various health care activities, but current evaluation approaches may not adequately identify the most useful application areas. To summarize existing evaluations of LLMs in health care in terms of 5 components: (1) evaluation data type, (2) health care task, (3) natural language processing (NLP) and natural language understanding (NLU) tasks, (4) dimension of evaluation, and (5) medical specialty. A systematic search of PubMed and Web of Science was performed for studies published between January 1, 2022, and February 19, 2024. Studies evaluating 1 or more LLMs in health care. Three independent reviewers categorized studies via keyword searches based on the data used, the health care tasks, the NLP and NLU tasks, the dimensions of evaluation, and the medical specialty. Of 519 studies reviewed, published between January 1, 2022, and February 19, 2024, only 5% used real patient care data for LLM evaluation. The most common health care tasks were assessing medical knowledge such as answering medical licensing examination questions (44.5%) and making diagnoses (19.5%). Administrative tasks such as assigning billing codes (0.2%) and writing prescriptions (0.2%) were less studied. For NLP and NLU tasks, most studies focused on question answering (84.2%), while tasks such as summarization (8.9%) and conversational dialogue (3.3%) were infrequent. Almost all studies (95.4%) used accuracy as the primary dimension of evaluation; fairness, bias, and toxicity (15.8%), deployment considerations (4.6%), and calibration and uncertainty (1.2%) were infrequently measured. Finally, in terms of medical specialty area, most studies were in generic health care applications (25.6%), internal medicine (16.4%), surgery (11.4%), and ophthalmology (6.9%), with nuclear medicine (0.6%), physical medicine (0.4%), and medical genetics (0.2%) being the least represented. Existing evaluations of LLMs mostly focus on accuracy of question answering for medical examinations, without consideration of real patient care data. Dimensions such as fairness, bias, and toxicity and deployment considerations received limited attention. Future evaluations should adopt standardized applications and metrics, use clinical data, and broaden focus to include a wider range of tasks and specialties.

Rise of the robots: implementing robotic surgery into the acute care surgery practice.

Acute Care Surgery (ACS) admissions and procedures are substantially increasing. ACS disproportionally accounts for a majority of morbidity and mortality among surgical patients. Minimally invasive techniques are associated with improved outcomes and shorter hospital length of stay within the ACS population. While laparoscopy is widespread, ACS surgeons have been slower to adopt the use of robotics. We aimed to evaluate the feasibility of incorporating robotic surgery within ACS practice. Robotic General Surgery operations performed by 8 Acute Care Surgeons from 5 local facilities within a large integrated healthcare system were queried over a 15 month period. Patients who underwent emergent, urgent, sub-acute, and elective robotic operations by ACS staff were identified. Demographics collected included age, gender, BMI, and ASA score. Outcomes recorded included procedure classification, total supply and implant charges (TSI), conversion to open, hospital length of stay (LOS), 30 day readmission, and 30 day mortality. Of 200 operations, the most common were Cholecystectomy (43.5%), Inguinal hernia repair (26.0%), Ventral hernia repair (18.0%), Appendectomy (5.0%), and Sigmoid Colectomy (3.5%). The median (± std dev) age was 48 ± 16.66years and BMI was 29.9 ± 8.79kg/m2. 46% of cases were sub-acute (n = 92), 33.5% were elective (n = 67), 14% were emergent (n = 28), and 6.5% were urgent (n = 13). Most patients were ASA 2 (107, 46.1%) or ASA 3 (71, 45.9%). The median (IQR) TSI and LOS were $1,770 (889.50) USD and 0.1 (0.9) days. Forty-one inpatient procedures were performed. Median LOS was 3days and expected LOS was 3.1days (O:E = 0.96). Five patients were readmitted within 30days, and there were no deaths within 30days. Robotic techniques may be safely implemented by ACS surgeons, potentially benefitting both patient and surgeon. LOS was similar between laparoscopic and robotic cases and only two cases required conversion to an open procedure. Next steps include a multi-center prospective trial comparing robotic to laparoscopic cases.

Antibiotic Resistance Pattern of Pathogens Isolated from Pediatric Patients during and after the COVID-19 Pandemic.

Background/Objectives: The present study aims to highlight the possible significant changes due to the COVID-19 pandemic in the resistance of pathogens involved in cases of pediatric infections. Methods: This study included children hospitalized in the Pediatric Intensive Care Unit, Surgery and Pediatrics from a tertiary teaching hospital, during and after the COVID-19 period (2020-2023). Results: The research included 845 samples collected during 2020-2023, from 685 pediatric patients. A total of 937 bacterial isolates were obtained, of which 509 isolates (54.32%) were Gram-negative bacteria. Around 30% of all the pathogens were multidrug-resistant (MDR), with a statistically significant increase post-pandemic, in the case of the MDR Escherichia coli strains (p < 0.05). A very high percentage of MDR Acinetobacter spp. isolates was found, with an important, but not statistically significant, increase in the post-pandemic period. The highest percentage of the MDR Gram-positive pathogens was registered in the case of S. aureus strains (31.80%). Over 20% of the Coagulase-negative Staphylococci (CoNS) strains isolated between 2020 and 2023 were MDR, with an important increase in the post-COVID-19 period. The proportion of carbapenem-resistant Gram-negative pathogens significantly decreased in the post-COVID-19 period compared with the COVID-19 period (p < 0.05), especially in the case of the Klebsiella spp. strains. Conclusions: Our findings revealed the increase in the post-COVID-19 period of the prevalence of MDR strains of Acinetobacter spp., CoNS, and Escherichia coli isolated in pediatric patient samples and a significant decline in the trend of the carbapenem-resistant Gram-negative pathogens, which may be due to the testing rate and to the specific pathology of the pediatric patients hospitalized in the two periods.

The first prevalence and antifungal susceptibility profile of Candida infections in Palestine, 2022

BackgroundCandida spp. are the most common cause of opportunistic fungal infections and are associated with a high mortality rate worldwide. In Palestine, the prevalence of Candida spp. infections remains elusive.MethodsWe performed our study at two hospitals in Palestine (Istishari Arab Hospital, and Najah National University Hospital). All patients diagnosed with candidiasis during the year 2022 have participated in the study. The prevalence of Candida spp., their distribution, and the activity of selected antifungals against Candida pathogens were assessed. In combination with phenotypic properties, Candida isolates were identified and tested for antifungal susceptibility using the colorimetric VITEK-2 Compact system.ResultsOur results showed that the prevalence of Candida spp. among infected samples was 11.6%. A total of eleven different Candida spp. were identified. Among these isolates, C. albicans (46.54%) was the most frequent, followed by C. glabrata (16.14%), C. tropicalis (13.83%), C. parapsilosis (4.82%), C. krusei (3.56%), C. dubliniensis (2.09%), C. ciferrii (1.67%), C. lusitaniae (0.83%), C. guilliermondii (0.62%), C. kefyer (0.41%) and C. spherica (0.20%). Among C. albicans, all isolates were 100% susceptible to fluconazole and micafungin. The susceptibility rates to Amphotericin B and flucytosine were 95% and 99%, respectively. The susceptibility rates of non-albicans Candida spp. (NAC) to fluconazole, voriconazole, amphotericine B, caspofungin, flucytosine and micafungin were 70%, 99%, 97%, ,72%, 92% and 100%, respectively. The incidence of Candida infections was higher in the intensive care unit and surgery department as compared to other hospital departments.ConclusionsFour pathogens are responsible for the most invasive infections: C. albicans, C. glabrata, C. tropicalis, and C. parapsilosis. A notable characteristic of this study was the high frequency of NAC species which were often more resistant to antifungal agents. A quick and accurate system like Vitek 2 compact was suggested for the careful species identification of clinical isolates of Candida. We suggest that continued surveillance of species distribution and susceptibility to antifungals will enhance future burden estimates and assist in evaluating preventative measures’ effectiveness.

Standard Percutaneous Nephrolithotomy as Day care Surgery. A Single Center Experience

Standard Percutaneous Nephrolithotomy as Day care Surgery. A Single Center Experience

Understanding the Scope of Acute Care Vascular Surgery at a Tertiary Academic Medical System

The restructuring of nonelective general surgery and nationwide implementation of the acute care surgery paradigm has improved patient outcomes and healthcare resource utilization. Although vascular surgery maintains one of the highest acuity rates among surgical specialties, the acute care vascular surgery (ACVS) practice model has not been widely accepted. In the present study, we investigate the scope and burden of ACVS at a tertiary academic medical system. All vascular surgical procedures performed at three hospitals comprising a large tertiary academic medical system were retrospectively queried through electronic medical records. Data were collected on procedure, acuity, timing of intervention, primary service, admission type, and total costs and charges. Patients were stratified by acuity of surgical intervention, with ACVS being defined as urgent or emergent operation. A total of 12,689 vascular surgeries were performed from 2018 to 2022. ACVS procedures comprised 22.1% of this total (n=2,803; 12.5% urgent, 9.6% emergent), with an annual burden ranging from 19.1% to 28.3%. Vascular surgeons served as primary surgeon in 91.3% of ACVS and cosurgeon in 8.7%. Fourteen separate surgical specialties requested acute vascular assistance, with the most frequently consulting specialties, including trauma or acute care surgery (ACS) (n=109, 3.9%) and cardiac surgery (n=74, 2.6%). ACVS cases were more frequently performed during after-hours (30.7% vs 11.6%) and on weekends (27.1% vs 2.0%) compared with elective vascular procedures (P<0.0001 each). The majority of ACVS cases originated from inpatient (n=2,353, 85.0%) and emergency department (n=379, 13.5%) consultations. Overall, ACVS generated $37.5 million in charges, accounting for 14% of total procedure-related charges over the study period. ACVS comprises a substantial portion of modern vascular practice and is associated with significant human and healthcare resource expenditure. These data support the development of practice models dedicated to acute vascular surgical care.

Resuscitative endovascular balloon occlusion of the aorta in the patient with obesity.

Palpation of anatomic landmarks is difficult in patients with obesity, which could increase difficulty of achieving femoral access and resuscitative endovascular balloon occlusion of the aorta (REBOA) placement. The primary aim of this study was to examine the association between obesity and successful REBOA placement. We hypothesized that higher body mass index (BMI) would decrease first-attempt success and increase time to successful aortic occlusion (AO). A review of the Aortic Occlusion for Resuscitation in Trauma and Acute Care Surgery (AORTA) registry was performed on patients who underwent REBOA placement with initiation systolic blood pressure >0 mm Hg from years 2013-2022. Patients were excluded if they received cardiopulmonary resuscitation on arrival, underwent open AO, or missing data entries for variables of interest. Body mass index categorization was as follows: non-obese (<30), class I (30-34.9), class II (35-39.9), and class III (40+) obesity. Patients were also stratified by access technique, including use of palpation or ultrasound guidance. Inclusion criteria were met by 410 patients. On binary analysis, no primary outcomes of interest, including rate of success, time to placement, or mortality, were significantly impacted by BMI. Among BMI subgroups, there was no statistical difference in injury severity, admission systolic blood pressure (SBP), or augmented SBP. At initiation of aortic occlusion, patients with class II and class III obesity had higher median SBP compared with non- and class I obese patients (p = 0.03). Body mass index subgroup did not impact likelihood of first-attempt success or conversion to open procedure. When stratified by access technique, there was no difference in success rates, time to success or mortality between groups. Body habitus did not impact success of REBOA placement, time to successful AO, or mortality. Further, ultrasound guidance was not superior to landmark palpation for arterial access. Following traumatic injury without hemodynamic collapse, obesity should not deter providers from considering REBOA placement. Therapeutic/Care management, Observational, Cross-sectional; Level IV.

Reducing strain on primary healthcare systems through innovative models of care: the impact of direct access physiotherapy for musculoskeletal conditions—an interrupted time series analysis

ObjectivesTo evaluate the longitudinal impact of introducing a national, direct access physiotherapy model of care on the rates of primary and secondary care consultations for musculoskeletal (MSK) conditions.DesignInterrupted time series...

Lessons from Covid-19 and the potential benefit of the implementation of Axon’s personal electronic health records (PEHR) into aesthetic care, plastic and reconstructive surgery

BackgroundCovid-19 pandemic highlighted the need for implementing Personal Electronic Health Records (PEHR) for patients’ data management. Furthermore, this pandemic underscored the relevance for integrated and interoperable Electronic Health Records (EHR) to support disease surveillance, hospital capacity planning and resource management (Peek N, Sujan M, Scott P (2020) Digital health and care in pandemic times: impact of COVID-19. BMJ Health Care Inf 27(1):e100166. https://doi.org/10.1136/bmjhci-2020-100166). Due to the lack of comprehensive patients’ record in plastic, reconstructive and aesthetic surgery, Axon’s myHealth app offers a break-through patient-centric design allowing patients to be in control of their records and updating them in real-time for their plastic and aesthetic care providers to have a clearer understanding of patients’ history and progress from pre-op to post-op.MethodsThe Axon Dublin survey took place during Covid-19 pandemic in two phases: Phase 1 aimed to assess the feasibility of patients integrating the Axon myHealth application into their clinical visits. Testing occurred in a clinical environment, where patients were encouraged to download and use the Axon system with a health practitioner (HP) present. Phase 2 focused on home testing, evaluating patients’ willingness to manage their health remotely with HP assistance. This phase included self-testing activities such as performing rapid Covid-19 antigen tests, recording medical history, and measuring blood pressure at home.ResultsThe Axon Dublin Study aimed to assess patient engagement, clinical impact, and cost-effectiveness of the Axon myHealth application. Over 85% of patients showed interest in owning a Personal Electronic Health Record. Notably, 36% continuously monitored chronic conditions. Clinical decisions, informed by patient data, saw 61.9% compliance. Noteworthy, 23% of hypertensive participants required immediate medication changes. Patient self-capture of data reduced consultation time. Public health implications were significant, with 39% vaccinated and 31% reporting complications. High user satisfaction (97%) demonstrated the app’s effectiveness in infection control and chronic care.ConclusionsOffering patients the ability to update and control their data is a growing interest, with a clear need in plastic and aesthetic surgery to have a better understanding of a patient’s medical past and progress throughout the surgical process and period. This platform, which is time and cost efficient, can only facilitate personalised care and improve outcomes while maintaining patient’s confidentiality.Level of evidenceNot gradable.