Surgical Intensive Care Unit Research Articles

Nurses’ perceptions on barriers for implementing pressure ulcers preventive measures among critically ill patients at a tertiary teaching hospital, Tanzania

ObjectivesTo explore nurse’s perceptions on barriers for Implementing Pressure Ulcers Preventive Measures among critically ill patients. Research DesignAn exploratory qualitative study design was employed. In-depth interviews were conducted with 15 nurses to explore their perceptions on barriers for preventing pressure ulcers among critically ill patient. Qualitative thematic analysis approach was used to analyze data. Study settingsMedical high dependent unit, surgical high dependent unit, medical Intensive Care unit and surgical intensive care units at tertiary teaching hospital. FindingsSeven themes emerged that describes nurses’ perceptions on barriers for implementing pressure ulcers preventive measures among patients with critical illness. The themes are: Restrictions from therapeutic interventions and severity of patient condition; Shortage of staff and equipment for pressure ulcer prevention; Unbalanced shift staffing and competing need for patient care; health care providers’ incompetence and carelessness; Lack of guidelines on implementing best practice for pressure ulcer prevention; Lack of accountability measures for negligence; and Minimal management’s commitment for PUs prevention. ConclusionThis study reveals contextual based barriers for effective prevention of ppressure ulcers among critically ill patients. Nurses should be continuously empowered with competence for pressure ulcers prevention. This should go along with staffing and equipping critical care settings for pressure ulcers prevention. Managerial oversight is required for effective implementation of pressure ulcer preventive measures. This should include development of guidelines and policies, establishing accountability measures for negligence, malpractice as well as initiating clinical audit for reflective learning purpose.

Data-derived subtypes of delirium during critical illness

To understand delirium heterogeneity, prior work relied on psychomotor symptoms or risk factors to identify subtypes. Data-driven approaches have used machine learning to identify biologically plausible, treatment-responsive subtypes of other acute illnesses but have not been used to examine delirium. We conducted a secondary analysis of a large, multicenter prospective cohort study involving adults in medical or surgical ICUs with respiratory failure or shock who experienced delirium per the Confusion Assessment Method for the ICU. We used data collected before delirium diagnosis in an unsupervised latent class model to identify delirium subtypes and then compared demographics, clinical characteristics, and outcomes between subtypes in the final model. The 731 patients who developed delirium during critical illness had a median age of 63 [IQR, 54-72] years, a median Sequential Organ Failure Assessment score of 8.0 [6.0-11.0] and 613 [83.4%] were mechanically ventilated at delirium identification. A four-class model best fit the data with 50% of patients in subtype (ST) 1, 18% in subtype 2, 17% in subtype 3, and 14% in subtype 4. Subtype 2-which had more shock and kidney impairment-had the highest mortality (33% [ST2] vs. 17% [ST1], 25% [ST3], and 17% [ST4], p=0.003). Subtype 4-which received more benzodiazepines and opioids-had the longest duration of delirium (6 days [ST4] vs. 3 [ST1], 4 [ST2], and 3 days [ST3], p<0.001) and coma (4 days [ST4] vs. 2 [ST1], 1 [ST2], and 2 days [ST3], p<0.001). Each of the four data-derived delirium subtypes was observed within previously identified psychomotor and risk factor-based delirium subtypes. Clinically significant cognitive impairment affected all subtypes at follow-up, but its severity did not differ by subtype (3-month, p=0.26; 12-month, p=0.80). The four data-derived delirium subtypes identified in this study should now be validated in independent cohorts, examined for differential treatment effects in trials, and inform mechanistic work evaluating treatment targets. National Institutes of Health (T32HL007820, R01AG027472).

The need for smoking cessation counselling and nicotine withdrawal therapy for hospitalised patients: A smoking point prevalence study at Groote Schuur Hospital, Cape Town, South Africa.

South Africa has high tobacco-attributable mortality and a smoking prevalence of 32.5% in males and 25.6% in females. There are limited data on smoking prevalence and desire to quit in hospitalised patients, who have limited access to smoking cessation services. To determine smoking prevalence and the extent of nicotine withdrawal symptoms, using a hospital-wide inpatient survey. A 1-day point prevalence survey was conducted at Groote Schuur Hospital, Cape Town. All wards except the haematology isolation, active labour and psychiatry lock-up wards were evaluated. Smoking status, withdrawal symptoms and desire to quit were established. Smoking status was confirmed in 85.8% of inpatients (n=501/584), of whom 31.9% (n=160) were current smokers; 43.5% (n=101/232) of male and 21.9% (n=59/269) of female inpatients were smokers. Documentation and confirmation of smoking status was highest in the maternity wards (100%) and lowest in the surgical wards (79.6%) and intensive care units (70.0%). Smoking prevalence ranged from 47.6% in male surgical patients to 15.2% in maternity patients. Of the smokers, 54.5% reported being motivated to quit, with a median (interquartile range) Fagerström test for nicotine dependence score of 4 (2 - 6), and 31.4% reported moderate to severe cravings to smoke, highest in the surgical wards. Smoking prevalence was higher in hospitalised patients than in the local general population. Many inpatients were not interested in quitting; however, a third had significant nicotine withdrawal symptoms. All inpatients who are active smokers should be identified and given universal brief smoking cessation advice. Patients with severe withdrawal symptoms should be allowed to smoke outside, and nicotine withdrawal pharmacotherapy should be provided to those who are bedbound or express a desire to stop smoking during the current admission. What the study adds. A single data point prevalence study of active smokers at Groote Schuur Hospital, Cape Town, was conducted. The prevalence of smoking was higher in the hospitalised patients than in the general community, but not all smokers were identified by the clinicians. Although symptoms of nicotine withdrawal were severe in some patients, motivation to quit smoking was not related to the degree of withdrawal being experienced. Many patients were not motivated to quit smoking.Implications of the findings. Better identification of inpatient smokers is required, and all should be given smoking cessation advice. Withdrawal symptoms can be severe in some patients, and those who are not interested in stopping smoking should allowed to smoke outside or be provided with nicotine withdrawal pharmacotherapy while in hospital. Those who are willing to quit should be supported as well as possible, including provision of nicotine replacement therapy or varenicline, and followed up after discharge as best practice.

Knowledge of nursing staff before and after training on incontinence-associated dermatitis.

To verify the knowledge of nursing staff before and after training on incontinence-associated dermatitis. A study before and after an educational intervention carried out with nursing staff from the medical and surgical clinics and intensive care unit of the university hospital in June 2023. The training took place over three meetings. Data was collected using a questionnaire administered immediately before and after the training. McNemar's test for dependent samples was used to compare before and after training. 25 nurses and 14 nursing technicians took part. The items that showed statistical significance were related to the identification and correct differentiation of dermatitis associated with incontinence and pressure injury; and the correct way to sanitize the skin. The training of the nursing team made it possible to assess their knowledge of how to identify, prevent and treat incontinence-associated dermatitis.

Comparative Effect of High-Frequency Nasal Cannula and Noninvasive Ventilation on the Work of Breathing and Postoperative Pulmonary Complication after Pediatric Congenital Cardiac Surgery: A Prospective Randomized Controlled Trial.

Various forms of commonly used noninvasive respiratory support strategies have considerable effect on diaphragmatic contractile function which can be evaluated using sonographic diaphragm activity parameters. To compare the magnitude of respiratory workload decreased as assessed by thickening fraction of the diaphragm and longitudinal diaphragmatic strain while using high-flow nasal cannula (HFNC) and noninvasive ventilation (NIV) modes [nasal intermittent positive pressure ventilation (NIPPV) and bilevel positive airway pressure (BiPAP)] in pediatric patients after cardiothoracic surgery. This prospective randomized controlled trial was performed at a tertiary care surgical intensive care unit in postcardiac surgery patients aged between 1 and 48 months, who were randomly allocated into three groups: 1) HFNC (with flows at 2 L/kg/min), 2) NIPPV via RAMS cannula in PSV mode (pressure support 8 cmH2O, PEEP 5 cmH2O), and 3) BiPAP in nCPAP mode (CPAP of 5 cmH2O). Measurements were recorded at baseline after extubation (R0) and subsequently every 12 hourly (R1, R2, R3, R4, R5) at 12, 24, 36, 48, and 60 hours respectively until therapy was discontinued. Sixty patients were included, with 20 patients each in the NIPPV group, HFNC group, and BiPAP group. Longitudinal strain at crura of diaphragm was lower in the BiPAP group as compared to HFNC group at R2-R4 [R2 (-4.27± -2.73 vs - 8.40± -6.40, P = 0.031), R3 (-5.32± -2.28 vs -8.44± -5.6, P = 0.015), and R4 (-3.8± -3.42 vs -12.4± -7.12, P = 0.040)]. PFR was higher in HFNC than NIPPV group at baseline and R1-R3[R0 (323 ± 114 vs 264 ± 80, P = 0.008), R1 (311 ± 114 vs 233 ± 66, P = 0.022), R2 (328 ± 116 vs 237 ± 4, P = 0.002), R3 (346 ± 112 vs 238 ± 54, P = 0.001)]. DTF and clinical parameters of increased work of breathing remain comparable between three groups. The rate of reintubation (within 48 hours of extubation or at ICU discharge) was 0.06% (1 in NIPPV, 1 in BiPAP, 2 in HFNC) and remain comparable between groups (P = 1.0). BiPAP may provide better decrease in work of breathing compared to HFNC as reflected by lower crural diaphragmatic strain pattern. HFNC may provide better oxygenation compared to NIPPV group, as reflected by higher PFR ratio. Failure rate and safety profile are similar among different methods used.

Predisposing and precipitating factors for the development of postoperative delirium in critically ill patients in a university intensive care unit.

to detect the incidence of postoperative delirium in critically ill patients admitted to a surgical intensive care unit and to evaluate the predisposing and precipitating factors associated with postoperative delirium in critically ill patients admitted to a surgical intensive care unit. this is a prospective cohort study of 157 critically ill surgical patients. Fisher's exact test and Chi-square test were used for the association between factors and the occurrence of delirium, the Wilcoxon test for numerical variables, and the logistic regression model for the analysis of predisposing and precipitating factors. the incidence of delirium was 28% (n=44). Age was a significant predisposing factor (p=0.001), followed by the length of surgery (p<0.001), blood transfusion (p=0.043), administration of crystalloids (p=0.008), and anti-inflammatory drugs (p=0.037), which were the precipitating factors identified. The best-adjusted models were: age, length of surgery, non-administration of anti-emetics, use of sufentanil, and blood transfusion. delirium is a frequent condition in critically ill adults undergoing surgery and the existence of precipitating and predisposing factors is relevant to the outcome, with the anesthetic-surgical procedure as the catalyst event.

Predictors and Influential Factors of Prolonged Stay in the Postoperative Surgical Intensive Care Unit

Predictors and Influential Factors of Prolonged Stay in the Postoperative Surgical Intensive Care Unit

Association of Delta Neutrophil Index with the 30-day Mortality in Adult Cardiac Surgical Patients.

Purpose: This study aimed to assess the predictive accuracy of 30-day mortality with delta neutrophil index (DNI) in adult cardiac surgical patients. Methods: This study enrolled patients who underwent cardiac surgery under general anesthesia between March 2016 and May 2022 at a tertiary hospital in the Republic of Korea. DNI was measured preoperatively, on postoperative arrival to the surgical intensive care unit (ICU), and 12, 24, 48, and 72 h postoperatively. Receiver operating characteristic (ROC) analysis was employed to identify the prediction accuracy of DNI. An area under ROC curve (AUROC) ≥0.700 was defined as satisfactory predictive accuracy. An optimal cutoff point for the DNI value to maximize predictive accuracy was revealed in the ROC curve, where [sensitivity + specificity] was maximum. Results: This study included a total of 843 patients in the final analyses. The mean age of the study population was 66.9±12.2 years and 38.4% of them were female patients. The overall 30-day mortality rate was 5.2%. Surgery involving the thoracic aorta, history of prior cardiac surgery, or emergency surgery were associated with a higher mortality rate. The DNI showed satisfactory predictive accuracy at 24 h, 48 h, and 72 h postoperatively, with AUROC of 0.729, 0.711, and 0.755, respectively. The optimal cutoff points of DNI at each time point were 3.2, 3.8, and 2.3, respectively. Conclusions: Postoperative DNI is a good predictor of 30-day mortality after cardiac surgery and has the benefit of no additional financial costs or time.

Exploring Cerebral Perfusion Transcranial Doppler Parameters in Patients Admitted to Combined Medical Surgical Intensive Care Unit

Introduction: Encephalopathy, a common complication in Intensive Care Unit (ICU) patients, is often linked to poor outcomes. Transcranial Doppler (TCD), a non-invasive tool assesses cerebral perfusion via the Pulsatility Index (PI), Resistivity Index (RI), and Time-Averaged Peak (TAP) or Mean Flow Velocity (MFV). These parameters may offer insights into cerebral perfusion and outcomes in encephalopathic patients. Aim: To describe the PI, RI of the Middle Cerebral Artery (MCA), and MFV or TAP measured by TCD in patients admitted to the ICU, comparing those with and without encephalopathy at the time of admission. Materials And Methods: This cross-sectional observational study was conducted from January 2019 to November 2020, in a combined medical-surgical ICU of a tertiary care hospital, involving 45 enrolled patients. Patients were evaluated within 24 hours of admission and subsequently every 24 hours until ICU discharge, death, or discharge against medical advice. Bilateral Middle cerebral artery TCD studies were conducted using a 1-5 MHz phased array probe or TCD mode through the transtemporal window. The PI, RI, and MFV were measured on both sides, with the higher value used for analysis, and all statistical analyses were performed using Statistics and Data 13 software. Results: In the present study, 88% (n=40) of patients had encephalopathy (GCS&lt;15 and RAAS less than or more than 0). The mean APACHE II score was 19 (14-25), indicating severe illness with a predicted mortality of 30-40%. Patients with encephalopathy had significantly higher APACHE II scores compared to those without (19.5 (16-25) vs 10 (4-19)). Although there was a trend towards a higher Pulsatility Index in encephalopathic patients at admission (1.11±0.378 vs 1.07±0.12, p=0.81), PI, RI, and TAP values did not significantly differ in non-survivors (1.12±0.49 vs 1.11±0.33, p=0.750). Persistent encephalopathy was associated with a trend towards higher PI at admission (1.05±0.24 vs 1.16±0.46; p=0.756), and a moderate correlation was found between decreasing PI and improvement in GCS (rho=-0.489, p=0.001). Conclusions: PI, RI, and TAP at the time of admission were not found to be associated with occurrence and recovery of encephalopathy as well as mortality. The trend of change in PI moderately correlated with improvement in GCS suggesting the importance of trends rather than absolute values.

Effect of Eye Masks and Ear Plugs on Quality of Sleep of Patients in Intensive Care Unit

Sleep has physiologic importance and adequate sleep is necessary for the maintenance of good health and well-being of all patients especially the critically ill. The study aimed to test the effect of eye masks and ear plugs on the quality of sleep among patients admitted to Intensive Care Units (ICU) and to identify the factors affecting the quality of sleep in ICU. An experimental cross-over design was adopted. Fourty subjects were selected using consecutive sampling from the Cardiac ICU, Neuro ICU, and Surgical ICU of the hospital. The tools used were the Richard Campbell Sleep Questionnaire (RCSQ) to assess the quality of sleep and the Visual Analogue Scale to measure factors causing sleep disturbance in the ICU. Results showed that eye mask and ear plug were effective in improving sleep among patients in ICU. While sleeping without interventions all of the subjects in ICU reported poor sleep. After using the eye mask and ear plugs 27.5 percent of subjects reported very good sleep 65 percent of subjects reported good sleep and only 7.5 percent had poor sleep. The mean score and standard deviation of quality of sleep of patients in ICU increased from 17.90 ±3.90 to 36.87±4.09 while sleeping with eye mask and ear plugs. This increase was significant at a 0.05 level of significance with a p value of 0.000. Eye masks and ear plugs were effective in improving sleep among patients in ICU. The most important factor affecting the quality of sleep of patients in ICU was light followed by anxiety, pain and alarms. The study concluded that Intensive care nurses have to use eye mask and ear plug for ICU patients to promote sleep which will help in reducing the use of sedatives. Nurses should take measures to reduce light and sound in ICU during night time and take measures to reduce anxiety and pain effectively for promoting sleep.

Assessing the impact of creating virtual windows on the incidence of delirium in a surgical intensive care unit: a before and after study

Introduction: Delirium is a frequent and important problem in the intensive care unit (ICU), and non-pharmacological means of prevention are limited. The importance of the physical environment in the occurrence of delirium in intensive care has been reported, particularly the presence of windows and daylight. We organized a trial to evaluate if the installation of virtual windows in the form of paintings in rooms without an actual window can limit the occurrence of delirium in ICU patients. Methods: We conducted a retrospective pre and post cohort study in a surgical ICU of a university-affiliated hospital. Patients residing for more than 48 hours in a windowless room before and after the installation of virtual windows were included in the trial. The primary endpoint was the incidence of a positive screening test for delirium during their time in the ICU. The Intensive Care Delirium Screening Checklist (ICDSC) was used as an objective screening tool to assess the occurrence of delirium. Results: A total of 400 patients were included in this trial (pre group: n = 200; post group: n = 200). The groups were well balanced except for the score APACHE II who was significantly higher in the post intervention group. The incidence of a positive screening test for delirium was similar in both groups after correction for confounding factors (29% vs 27%; OR 0,906 [0,584-1,402], p=0,656). Conclusion: The installation of virtual windows did not reduce the incidence of delirium in a surgical intensive care unit. Keywords Critical care, delirium, windows, prevention, circadian cycle.

Effectiveness of Prophylactic Ketamine on Shivering in Cesarean Section after Spinal Anesthesia

Background: Regional anesthesia, including spinal or epidural techniques, can disrupt the body's ability to regulate temperature, leading to a heightened risk of shivering. Studies have indicated that shivering occurs in up to 55% of patients undergoing procedures under regional anesthesia. To address this issue, numerous medications have been explored for their potential to prevent post-anesthetic shivering. Objective: To assess the effectiveness of prophylactic ketamine on shivering in cesarean section after spinal anesthesia. Study Design: Prospective, randomized, double blind, clinical trial. Settings: Department of Anesthesiology, Surgical Intensive Care Unit and Pain Management, Civil Hospital Karachi Pakistan. Duration: Six months from August 2019 to January 2020. Methods: A total of 60 patients undergoing spinal anesthesia for elective cesarean section were included in this study. Two groups A and B were formed and patients were equally divided into these groups by lottery method. Group A were treated with ketamine 0.5 mg/kg I/V and group B treated with normal saline 0.05ml/kg/I/V. Grade 0-1 shivering was labeled as effective and shivering grade 2, 3 or 4 at 15 minutes after administration of the drug, was considered ineffective. Results: The average age of the patients was 28.33 ± 5.67 Years. Rate of shivering was significantly high in patients who were treated with normal saline than ketamine in which shivering was not observed (53.3 vs. 0% respectively; P value of 0.0005). This implies that effectiveness was significantly high in groups A than group B (100% vs. 46.7%). Conclusion: Ketamine observed to be the effective drug for the treatment of postanesthetic shivering. It should be considered prophylactically in any patient undergoing spinal anesthesia.

Assessment of Hand Hygiene Practices Among Healthcare Professionals in the Surgical Intensive Care Unit

Amaç: Bu çalışmanın amacı, cerrahi yoğun bakım ünitesinde görev yapan sağlık çalışanlarının, hastane enfeksiyonlarının kontrolü ve önlenmesinde önemli ve etkili bir yol olan el yıkama durumlarını belirlemektir. Gereç ve Yöntem: Tanımlayıcı tipte olan çalışmaya 12 hekim ve 17 hemşire olmak üzere toplam 29 sağlık çalışanı dahil edildi. Araştırmanın verileri anket ve gözlem formları ile toplandı. Toplanan veriler SPSS 16 programı kullanılarak nicel analiz yöntemleri ile değerlendirildi. Bulgular: Sağlık çalışanlarının ünite içinde el yıkamalarını etkileyen nedenler çok sık yıkamanın zaman alması (%27,1), kişi başına düşen hasta sayısının fazla olması (%24,1), araç-gereç eksikliği (%20,7) ve ihmaldir (%20,7). %86,2’si el yıkama konusunda eğitim almış olan çalışanların tamamı el yıkamada izlenmesi gereken sıralamayı bilmemektedir. %62,1’i ünite içinde, %51,7’si ünite içinde el yıkama süresini bilmemektedir. Çalışanların %34,8’inin üniteye ilk girişte ellerini hiç yıkamadığı, yalnızca %32,6’sının uygun teknikle ellerini yıkadığı belirlenmiştir. Ünite içinde ise el yıkama gerektiren durumların %51,1’inde ellerin yıkanmadığı görülmüştür. Uygun teknikle el yıkama oranı ise %29,1 olmuştur. Sonuç: Sağlık çalışanlarının el yıkama durumları istenen düzeyde değildir. Bu sonuçlar doğrultusunda el hijyeni eğitimlerinin gerçekleştirilmesi gibi çalışmaların sağlık çalışanlarının el yıkama durumlarına olumlu yönde önemli katkılar sağlayacağını düşünmekteyiz.

Aortoesophageal Fistula Following a Cervical Epidural Steroid Injection: Case Report

BACKGROUND: Immunosuppression after cervical epidural steroid injection (CESI) is a potential complication. This report discusses the development of an aortoesophageal fistula following a CESI. CASE REPORT: Patient is a man in his early 60s with a history of central spinal cord syndrome status post (s/p) anterior cervical discectomy and fusion of C3-C6 and thoracic aortic aneurysm s/p thoracic endovascular aortic repair (TEVAR) who presented with cervical radiculopathy. He underwent a CESI without immediate complications. Twelve days postop, the patient presented with shortness of breath, fatigue, and change in mental status. He was found to have a pleural abscess and an aortoesophageal fistula from his previous TEVAR stent. He subsequently was admitted to the surgical intensive care unit and received mechanical ventilation, antibiotics, and high-dose vasopressors. Patient was eventually transitioned to comfort care and expired one day after admission. CONCLUSIONS: Systemic steroid absorption from ESIs can lead to complications, such as infection, due to immunosuppression. KEY WORDS: Epidural steroid injection, corticosteroids, spinal stenosis

Chest X-rays and Lung Ultrasound Are Not Interchangeable in Intensive Care Practice.

Data comparing lung ultrasound (LUS) and chest X-rays (CXRs) have increased over the past years. However, there still is a lack of knowledge as to how these modalities compare with one another in the critical care setting, and several factors, including artificial study conditions, limit the generalizability of most published studies. Our study aimed to analyze the performance of LUS in comparison with CXRs in real-world critical care practice. This study presents new data from the prospective FASP-ICU trial. A total of 209 corresponding datasets of LUS and CXR results from 111 consecutive surgical ICU patients were subanalyzed, and categorial findings were compared. Statistical analysis was performed on the rates of agreement between the different imaging modalities. A total of 1162 lung abnormalities were detected by LUS in ICU patients compared with 1228 detected by CXR, a non-significant difference (p = 0.276; 95% CI -0.886 to 0.254). However, the agreement rates varied between the observed abnormalities: the rate of agreement for the presence of interstitial syndrome ranged from 0 to 15%, consolidation from 0 to 56%, basal atelectasis from 33.9 to 49.34%, pleural effusion from 40.65 to 50%, and compression atelectasis from 14.29 to 19.3%. The rate of agreement was 0% for pneumothorax and 20.95% for hypervolemia. LUS does not detect more lung abnormalities in real-world critical care practice than CXRs, although a higher sensitivity of LUS has been reported in previous studies. Overall, low agreement rates between LUS and CXRs suggest that these diagnostic techniques are not equivalent but instead are complementary and should be used alongside each other.

The incidence and risk factors of proximal lower extremity deep vein thrombosis without pharmacologic prophylaxis in critically ill surgical Taiwanese patients: A prospective study.

Venous thromboembolism (VTE) in critically ill patients has been well-studied in Western countries. Many studies have developed risk assessments and established pharmacological protocols to prevent deep venous thrombosis (DVT). However, the DVT rate and need for pharmacologic VTE prophylaxis in critically ill Taiwanese patients are limited. This study aimed to prospectively determine the DVT incidence, risk factors, and outcomes in critically ill Taiwanese patients who do not receive pharmacologic VTE prophylaxis. We conducted a prospective study in a surgical intensive care unit (SICU) of a tertiary academic medical center in Taiwan. Adult patients admitted to SICU from March 2021 to June 2022 received proximal lower extremities DVT surveillance with venous duplex ultrasound. No patient received pharmacologic VTE prophylaxis. The outcomes were the incidence and risk factors of DVT. Among 501 enrolled SICU patients, 21 patients (4.2%) were diagnosed with proximal lower extremities DVT. In a multivariate regression analysis, hypoalbuminemia (odd ratio (OR) = 6.061, 95% confidence interval (CI): 1.067-34.421), femoral central venous catheter (OR = 4.515, 95% CI: 1.547-13.174), ICU stays more than 10 days (OR = 4.017, 95% CI: 1.270-12.707), and swollen leg (OR = 3.427, 95% CI: 1.075-10.930) were independent risk factors for DVT. In addition, patients with proximal lower extremities DVT have more extended ventilator days (p = 0.045) and ICU stays (p = 0.044). Our findings indicate critically ill Taiwanese patients have a higher incidence of DVT than results from prior retrospective studies in the Asian population. Physicians who care for this population should consider the specific risk factors for DVT and prescribe pharmacologic prophylaxis in high-risk groups.

AI-Enhanced Predictive Modeling for Identifying Depression and Delirium in Cardiovascular Patients Scheduled for Cardiac Surgery.

Our study was conducted at a cardiac surgical intensive care unit. A total of 224 participants who were scheduled for elective coronary artery bypass graft surgery (CABG) were enrolled in the study. Prior to surgery, each patient underwent psychiatric evaluation to identify major depressive disorder (MDD) based on the DSM-5 criteria. An advanced data curation workflow was applied to eliminate outliers and inconsistencies and improve data quality. An explainable AI-empowered pipeline was developed, where sophisticated machine learning techniques, including the AdaBoost, random forest, and XGBoost algorithms, were trained and tested on the curated data based on a stratified cross-validation approach. Our findings identified a significant correlation between the biomarker "sRAGE" and depression (r = 0.32, p = 0.038). Among the applied models, the random forest classifier demonstrated superior accuracy in predicting depression, with notable scores in accuracy (0.62), sensitivity (0.71), specificity (0.53), and area under the curve (0.67). This study provides compelling evidence that depression in CVD patients, particularly those with elevated "sRAGE" levels, can be predicted with a 62% accuracy rate. Our AI-driven approach offers a promising way for early identification and intervention, potentially revolutionizing care strategies in this vulnerable population.

Evaluation of the FAST HUG implementation effect on the mortality and length of stay in admitted patient in Intensive Care Unit (ICU) of a hospital

Objective: We aimed to determine new version of the FAST HUG implementation effect on the mortality and length of stay in admittedpatient in Intensive Care Unit (ICU) of a hospital. Methods: We conducted a prospective cohort study on 406 patients who admitted in medical and surgical ICU of Imam Hossein Hospitalof Tehran province in Iran from July 1, 2022, to September 30, 2022. We identified predictors of ICU mortality by logistic regression model,predictors of 28-day mortality/re-hospitalization/recovery by generalized ordered logit model, predictors of length of stay (LOS) by linearregression, predictors of mechanical ventilation by generalized ordered logit and predictors of SOFA score by hurdle model. Results: This mnemonic had protective impact (OR = 0.56, P-value = 0.01) on the 28-days mortality. One unit increase in mean of FAST HUGscore had a preventive effect on the outcome of death (OR = 0.21). Surgical admission type (Coefficient = –3.24, P-value = 0.00) and FASTHUG implementation (Coefficient =1.58, P-value= 0.0) were strongest factors on the LOS. Conclusion: Our study results approved the importance of the FAST HUG implementation on the decrease of patient mortality in ICU and28 days after discharge. Additionally, this checklist had a statistically significant role in declining SOFA scores in ICU patients.

Pneumonia in the first week after polytrauma is associated with reduced blood levels of soluble herpes virus entry mediator.

Pneumonia develops frequently after major surgery and polytrauma and thus in the presence of systemic inflammatory response syndrome (SIRS) and organ dysfunction. Immune checkpoints balance self-tolerance and immune activation. Altered checkpoint blood levels were reported for sepsis. We analyzed associations of pneumonia incidence in the presence of SIRS during the first week of critical illness and trends in checkpoint blood levels. Patients were studied from day two to six after admission to a surgical intensive care unit (ICU). Blood was sampled and physician experts retrospectively adjudicated upon the presence of SIRS and Sepsis-1/2 every eight hours. We measured the daily levels of immune checkpoints and inflammatory markers by bead arrays for polytrauma patients developing pneumonia. Immune checkpoint time series were additionally determined for clinically highly similar polytrauma controls remaining infection-free during follow-up. We performed cluster analyses. Immune checkpoint time trends in cases and controls were compared with hierarchical linear models. For patients with surgical trauma and with and without sepsis, selected immune checkpoints were determined in study baseline samples. In polytrauma patients with post-injury pneumonia, eleven immune checkpoints dominated subcluster 3 that separated subclusters 1 and 2 of myeloid markers from subcluster 4 of endothelial activation, tissue inflammation, and adaptive immunity markers. Immune checkpoint blood levels were more stable in polytrauma cases than controls, where they trended towards an increase in subcluster A and a decrease in subcluster B. Herpes virus entry mediator (HVEM) levels (subcluster A) were lower in cases throughout. In unselected surgical patients, sepsis was not associated with altered HVEM levels at the study baseline. Pneumonia development after polytrauma until ICU-day six was associated with decreased blood levels of HVEM. HVEM signaling may reduce pneumonia risk by strengthening myeloid antimicrobial defense and dampening lymphoid-mediated tissue damage. Future investigations into the role of HVEM in pneumonia and sepsis development and as a predictive biomarker should consider the etiology of critical illness and the site of infection.

Relationship between blood urea nitrogen to serum albumin ratio and short-term mortality among patients from the surgical intensive care unit: a population-based real-world study

BackgroundPatients admitted to the surgical intensive care unit (SICU) often suffer from multi-organ dysfunction and have a high mortality rate. Therefore, finding a simple but effective clinical indicator to predict the prognosis of patients is essential to improve their survival. The aim of this study was to investigate the relationship between blood urea nitrogen to serum albumin ratio (B/A) and short-term mortality among patients from the SICU.MethodsAll eligible adult patients admitted to the SICU from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database were recruited for this study. Participants were divided into a death group (n = 638) and a survival group (n = 2,048) based on the 90-day prognosis, and then grouped by B/A quartiles. We used restricted cubic splines (RCS) to visually analyze the correlation of B/A with 30- and 90-day risk of death. Cumulative survival rates were estimated using Kaplan–Meier survival curves according to B/A quartiles and evaluated using the log-rank test. Cox proportional risk models were developed and sensitivity analyses were performed to explore whether B/A was independently associated with short-term outcomes in SICU patients. Receiver operating characteristic (ROC) curves were analyzed to ascertain the value of B/A for prognosticating 90-day outcome.ResultsA total of 2686 participants were included in the final study, and their 30-day and 90-day all-cause mortality rates were 17.61% and 23.75%, respectively. The differences in 30-day and 90-day mortality rates were statistically significant among the four groups of patients (all p < 0.001). RCS curves showed that B/A was linearly associated with the risk of 30-day and 90-day all-cause mortality in SICU patients (χ2 = 0.960, p = 0.811; χ2 = 1.940, p = 0.584). Kaplan–Meier analysis showed that the 90-day cumulative survival rate gradually decreased as B/A increased, with patients in the highest quartile of B/A having the lowest survival rate (p < 0.001). Cox regression indicated that elevated B/A (> 9.69) was an independent risk factor for 30-day and 90-day all-cause mortality in SICU patients. The analysis of ROC curves demonstrated that B/A exhibited a significant predictive ability for 90-day mortality, with an optimal threshold of 6.587, a sensitivity of 56.9%, and a specificity of 64.8%.ConclusionsElevated B/A (> 9.69) on admission was an independent risk factor for short-term mortality in SICU patients, and clinicians should pay more attention to this group of patients and intervene clinically at an early stage to reduce mortality.