Performance in mortality prediction of SAPS 3 And MPM-III scores among adult patients admitted to the ICU of a private tertiary referral hospital in Tanzania: a retrospective cohort study

BACKGROUND

Illness predictive scoring systems are significant and meaningful adjuncts of patient management in the Intensive Care Unit (ICU). They assist in predicting patient outcomes, improve clinical decision making and provide insight into the effectiveness of care and management of patients while optimizing the use of hospital resources. We evaluated mortality predictive performance of Simplified Acute Physiology Score (SAPS 3) and Mortality Probability Models (MPM0-III) and compared their performance in predicting outcome as well as identifying disease pattern and factors associated with increased mortality.

METHODS

This was a retrospective cohort study of adult patients admitted to the ICU of the Aga Khan Hospital, Dar- es- Salaam, Tanzania between August 2018 and April 2020. Demographics, clinical characteristics, outcomes, source of admission, primary admission category, length of stay and the support provided with the worst physiological data within the first hour of ICU admission were extracted. SAPS 3 and MPM0-III scores were calculated using an online web-based calculator. The performance of each model was assessed by discrimination and calibration. Discrimination between survivors and non-survivors was assessed by the area under the receiver operator characteristic curve (ROC) and calibration was estimated using the Hosmer-Lemeshow goodness-of-fit test.

RESULTS

A total of 331 patients were enrolled in the study with a median age of 58 years (IQR 43-71), most of whom were male (n = 208, 62.8%), of African origin (n = 178, 53.8%) and admitted from the emergency department (n = 306, 92.4%). In- hospital mortality of critically ill patients was 16.1%. Discrimination was very good for all models, the area under the receiver-operating characteristic (ROC) curve for SAPS 3 and MPM0-III was 0.89 (95% CI [0.844-0.935]) and 0.90 (95% CI [0.864-0.944]) respectively. Calibration as calculated by Hosmer-Lemeshow goodness-of-fit test showed good calibration for SAPS 3 and MPM0-III with Chi- square values of 4.61 and 5.08 respectively and P-Value > 0.05.

CONCLUSION

Both SAPS 3 and MPM0-III performed well in predicting mortality and outcome in our cohort of patients admitted to the intensive care unit of a private tertiary hospital. The in-hospital mortality of critically ill patients was lower compared to studies done in other intensive care units in tertiary referral hospitals within Tanzania.

Integration and implementation of precision medicine in the multifaceted inflammatory bowel disease

Inflammatory bowel disease (IBD) is a complex disease with variability in genetic, environmental, and lifestyle factors affecting disease presentation and course. Precision medicine has the potential to play a crucial role in managing IBD by tailoring treatment plans based on the heterogeneity of clinical and temporal variability of patients. Precision medicine is a population-based approach to managing IBD by integrating environmental, genomic, epigenomic, transcriptomic, proteomic, and metabolomic factors. It is a recent and rapidly developing medicine. The widespread adoption of precision medicine worldwide has the potential to result in the early detection of diseases, optimal utilization of healthcare resources, enhanced patient outcomes, and, ultimately, improved quality of life for individuals with IBD. Though precision medicine is promising in terms of better quality of patient care, inadequacies exist in the ongoing research. There is discordance in study conduct, and data collection, utilization, interpretation, and analysis. This review aims to describe the current literature on precision medicine, its multiomics approach, and future directions for its application in IBD.

Perioperative management of emergency and elective surgeries during the pandemic

The effects of the 2019 novel coronavirus, SARS-CoV-2, and its associated pandemic are complex and widespread. It has permeated all aspects of daily life around the world. Unsurprisingly, it also had significant impacts on proceedings within hospitals around the world as well. Most notably, the multiple waves of the pandemic have each had untoward effects on surgical productivity within hospital systems. More specifically, the disruption of surgical procedures has impacted both emergent and elective cases. In the context of emergent procedures, hospital systems have had to reevaluate how they define 'emergent,' forcing them to determine which cases could not be rescheduled versus those that could. Elective procedures, on the other hand, were nearly halted altogether in the initial pandemic waves. If these were not completely stopped in some places, then they were greatly reduced. This paper will serve to describe the effect the pandemic has had on the proceedings of both elective and emergent surgeries. It will also describe how we have reevaluated and changed the way we define 'emergent' surgeries and describe the potential implications of this. We will also describe literature that speaks to the implications of the delay of elective procedures. Additionally, the cost implications of fewer surgical procedures performed will be discussed. Finally, we will describe literature that has established protocols for scheduling surgeries in waves of the pandemic, how these have evolved over time, and how they have created confusion for hospital systems navigating the pandemic.

The effects of different prone ventilation strategies on mechanical power and respiratory mechanics in acute respiratory distress syndrome patients: a prospective, single-center observational study

Background

Acute respiratory distress syndrome (ARDS) is a common pathological condition among critically ill patients that often requires mechanical ventilation support. However, mechanical ventilation increases the risk of ventilator-induced lung injury (VILI). Different prone ventilation strategies may have varying effects on mechanical power (MP) and respiratory mechanics. This study aimed to compare the effects of prone ventilation and lateral-prone ventilation on MP and respiratory mechanics in ARDS patients to assess the relative risks of VILI associated with these strategies.

Methods

This prospective, single-center observational study employed a randomized trial. One hundred and twenty-two patients with moderate-to-severe ARDS admitted to the Department of Critical Care Medicine at Lishui Central Hospital between December 2021 and April 2024 were enrolled in this study. Patients were randomly assigned to receive either prone or lateral-prone ventilation strategies. The primary outcomes included MP, driving pressure (DP), static lung compliance (Cstat), airway resistance (Raw), the oxygenation index [i.e., the oxygen saturation to fraction of inspired oxygen (SpO2/FiO2) ratio], the mortality rate, and the duration of the mechanical ventilation. Statistical analyses were performed to compare the effects of the two ventilation strategies on the respiratory mechanics and clinical outcomes.

Results

The baseline characteristics of the patients, such as age, gender, and body mass index, were comparable between the two groups. No significant differences were found between the groups in terms of the Acute Physiology and Chronic Health Evaluation II (APACHE-II) score. No significant differences were observed in the SpO2/FiO2 ratio, mean arterial pressure (MAP), or Raw at different time points. However, MP differed significantly between the prone and lateral-prone groups. No significant differences were found between the two groups regarding heart rate (HR), MAP, and Cstat.

Conclusions

Compared to prone ventilation, lateral-prone ventilation significantly reduced MP in ARDS patients. The early adoption of lateral-prone ventilation may help mitigate the risk of VILI. This strategy holds clinical promise and warrants further validation and optimization.

Safety and efficacy of sodium bicarbonate for treating metabolic acidosis in chronic kidney disease: A systematic review and meta-analysis

BACKGROUND

Kidney dysfunction and reduced filtration capacity due to chronic kidney disease (CKD) lead to a shift in the body's acid-base balance, ultimately causing metabolic acidosis (MA). Sodium bicarbonate has been used as a supplement to alleviate the symptoms and reverse the acidosis, and it may even slow the progression of CKD. However, its safety profile and overall effectiveness are uncertain.

AIM

To conduct a systematic review and meta-analysis of clinical trials assessing sodium bicarbonate's safety and efficacy for treating CKD-induced MA.

METHODS

Medline, Scopus, EMBASE, and Cochrane Central were systematically searched from inception until May 2024 to select all relevant randomized control trials (RCTs) and non-RCT (NRCTs) evaluating the effectiveness of sodium bicarbonate in correcting MA in end-stage renal disease patients. In addition, ClinicalTrials.gov, Medrxiv.org, and Google Scholar were searched for other literature. A random-effects meta-analysis was performed to derive mean differences (MD) and risk ratios (RR) with their 95%CI for continuous and dichotomous outcomes respectively.

RESULTS

Following a systematic search of the databases, 20 RCTs and 2 and NRCTs comprising 2932 patients were included in our study. The results revealed that sodium bicarbonate significantly increased serum bicarbonate in CKD patients (MD: 2.59, 95%CI: 0.95-4.22; P = 0.02; I 2 = 95%). However, there was a non-significant increase in estimated glomerular filtration rate (eGFR) in patients on sodium bicarbonate therapy (MD: 0.93, 95%CI: -1.88-3.75; P = 0.52; I 2 = 93%). Upon assessment of the safety profile of sodium bicarbonate, no significant association was found in the outcomes of death/prolonged hospitalization (RR: 1.05, 95%CI: 0.84-1.32; P = 0.66; I 2 = 0%), or gastrointestinal disorders (RR: 1.64, 95%CI: 0.35-7.66; P = 0.53; I 2 = 76%), or worsening edema (RR: 1.26, 95%CI: 0.94-1.68; P = 0.12; I 2 = 37%) when compared to control.

CONCLUSION

Sodium bicarbonate therapy may halt worsening kidney function by correcting serum bicarbonate levels and treating MA. Although sodium bicarbonate does not significantly improve the eGFR, it may potentially prevent CKD progression while maintaining an overall favorable safety profile.

Emerging role of biosimilars in the clinical care of inflammatory bowel disease patients

The increasing incidence of inflammatory bowel disease (IBD) globally has redirected the healthcare system's focus towards safe and affordable pharmacological interventions. The inception of anti-tumor necrosis factor-α (TNF-α) had resulted in a trend shift from surgical interventions. However, as the patents of approved anti-TNF-α drugs expire, biological copies of the many approved products are in the pipeline. The most commonly used biosimilar for IBD has been infliximab, followed by Adalimumab biosimilars which have been approved in major countries across the world. Although biosimilars are approved on the basis of similarity of their reference product, the lack of real-world evidence of its safety in ulcerative colitis and Crohn's disease patients has contributed to physicians' hesitancy. However, biosimilars are expected to reduce treatment costs and provide economic benefits.

Apheresis: A cell-based therapeutic tool for the inflammatory bowel disease

Inflammatory Bowel Disease (IBD) is a hallmark of leukocyte infiltration, followed by the release of cytokines and interleukins. Disease progression to Ulcerative Colitis (UC) or Crohn's Disease (CD) remained largely incurable. The genetic and environmental factors disrupt enteral bacteria in the gut, which hampers the intestinal repairing capability of damaged mucosa. Commonly practiced pharmacological therapies include 5-aminosalicylic acid with corticosteroids and tumor necrosis factor (TNF)-α. New interventions such as CDP571 and TNF-blocking RDP58 report the loss of patient response. This review discusses the non-pharmacologic selective granulocyte-monocyte-apheresis (GMA) and leukocytapheresis (LCAP) that have been proposed as treatment modalities that reduce mortality. GMA, an extracorporeal vein-to-vein technique, presents a strong safety profile case for its use as a viable therapeutic option compared to GMA's conventional medication safety profile. GMA reported minimal to no side effects in the pediatric population and pregnant women. Numerous studies report the efficacious nature of GMA in UC patients, whereas data on CD patients is insufficient. Its benefits outweigh the risks and are emerging as a favored non-pharmacological treatment option. On the contrary, LCAP uses a general extracorporeal treatment that entraps leukocytes and suppresses cytokine release. It has been deemed more efficacious than conventional drug treatments, the former causing better disease remission, and maintenance. Patients with UC/CD secondary to complications have responded well to the treatment. Side effects of the procedure have remained mild to moderate, and there is little evidence of any severe adverse event occurring in most age groups. LCAP decreases the dependence on steroids and immunosuppressive therapies for IBD. The review will discuss the role of GMA and LCAP.

Evidence-based Practice Interventions for Reducing Postoperative Pulmonary Complications: A Narrative Review

BACKGROUND

Specific surgical procedures, such as upper abdominal and thoracic surgery, are connected to an increased predisposition of postoperative pulmonary complications (PPCs). The incidence of PPCs could vary approximately between 20-90% with upper abdominal surgery, which can be minimized by using treatment procedures that increase lung capacity and encourage inspiration. This review aims to examine the effectiveness of already existing evidence-based interventions that promote lung expansion, thereby preventing PPCs.

METHOD

We mainly focused on the existing evidence of preoperative education on the incentive spirometer, early mobilization, directed coughing, deep breathing exercises, chest physiotherapy, and inspiratory muscle training (IMT) to prevent PPCs. The literature search was limited to experimental, observational studies, systemic reviews, and articles published in the last 15 years, January 2007- Dec. 2022, in PubMed and Google Scholar.

RESULT

This initial search yielded a total of 5301 articles. All articles with titles not related to the topic were eliminated. 1050 records were screened, and the final review was conducted with 22 articles, including 13 randomized controlled trials (RCTs), four systemic reviews, one retrospective review, three observational studies, and one non-experimental study. Our review reveals mixed evidence for individual interventions, including but not limited to incentive spirometry, inspiratory muscle training, early mobilization, cough, deep breathing, etc. Some studies maintain that intervention is effective; others imply there is no substantial difference in the choice of intervention.

CONCLUSION

The literature review concluded that patients who received multiple interventions showed significant improvement in pulmonary function postoperatively. However, definitive studies need to be conducted to solidify this conclusion.

The Role of Cardiac MRI in Pulmonary Hypertension- Is it Still an Underutilized Tool

Pulmonary hypertension (PH) is an intricate medical issue resulting from increased pressure in the pulmonary artery (PA). The current gold standard for diagnosis involves an invasive procedure known as right heart catheterization. Nevertheless, cardiac magnetic resonance imaging (cMRI) offers a non-invasive and valuable alternative for evaluating the function, structure, and blood flow through the pulmonary artery (PA) in both the left ventricle (LV) and right ventricle (RV). Additionally, cMRI can be a good tool for predicting mortality by assessing various hemodynamic parameters. We perceive that cMRI may be an underutilized tool in the evaluation of PH. More discussions might be needed to highlight its utility in patients with PH. This article aims to discuss the potential role of cMRI in evaluating PH based on the review of recent literature.

The Pulse of AI: Implementation of Artificial Intelligence in Healthcare and its Potential Hazards

In this editorial, we explore the existing utilization of artificial intelligence (AI) within the healthcare industry, examining both its scope and potential harms if implemented and relied upon on a broader scale. Collaboration among corporations, government bodies, policymakers, and medical experts is essential to address potential concerns, ensuring smooth AI integration into healthcare systems.

Clinical presentation and outcomes of care in adults with diabetic ketoacidosis pre-COVID-19 and during-COVID-19 at a tertiary, referral hospital in Nairobi, Kenya

BACKGROUND

Prognosis of DKA has improved over time with the availability of evidence-based protocols and resources. However, in Kenya, there are limited resources for the appropriate diagnosis and management of DKA, mostly limited to tertiary-level referral facilities. This study aimed to review the clinical presentation, management, and outcomes of adult patients admitted with DKA and assess differences in these parameters before and during the COVID-19 pandemic.

METHODS

This was a retrospective study of DKA admissions from January 2017 to December 2021. Patient data were retrieved from the medical records department using ICD-10 codes, and individual details were abstracted on clinical presentation, management, and outcomes of DKA. Comparisons were made between pre-COVID-19 and during COVID-19 durations.

RESULTS

150 patients admitted with DKA were included (n = 48 pre- COVID-19, n = 102 during COVID-19 (n = 23 COVID-19 positive, n = 79 COVID-19 negative)). Median age was 47 years (IQR 33.0, 59.0), median HbA1C was 12.4% [IQR 10.8, 14.6]), and most patients had severe DKA (46%). Most common DKA precipitants were infections (40.7%), newly diagnosed diabetes (33.3%) and missed medication (25.3%). There was a significant difference in pulmonary infections as a DKA precipitant, between the pre- COVID and during COVID-19 pandemic (21.6% during COVID-19 versus 6.3% pre- COVID-19; p = 0.012). Median total insulin dose used was 110.0 units [IQR 76.0, 173.0], and a 100% of patients received basal insulin. Median length of hospital stay was 4.0 days [IQR 3.0, 6.0] and time to DKA resolution was 30.0 h [IQR 24.0, 48.0]. There were 2 deaths (1.3%), none directly attributable to DKA. Severity of DKA significantly differed between pre- COVID-19, COVID-19 positive and COVID-19 negative DKA (52.2% of COVID-19 positive had moderate DKA compared to 26.6% of COVID-19 negative and 22.9% of Pre-COVID-19 (p = 0.006)).

CONCLUSION

Even in developing regions, good outcomes can be achieved with the appropriate facilities for DKA management. Clinician and patient education is necessary to ensure early detection and prompt referral to avoid patients presenting with severe DKA. Exploratory studies are needed to assess reasons for prolonged time to DKA resolution found in this study.

Pattern of external injuries sustained during bomb blast attacks in Karachi, Pakistan from 2000 to 2007

OBJECTIVE

To evaluate patterns of external injury resulting from bomb blasts in Karachi, and compare the injury profile resulting from explosions in open versus semi-confined blast environments.

METHODS

The retrospective, cross-sectional study was conducted in Karachi and comprised relevant data from January 2000 to October 2007. Casualty medical records and medico-legal certificates of the victims presented to three large public-sector hospitals were evaluated using a self-designed proforma. SPSS 17 was used for statistical analysis.

RESULTS

Of the 1146 victims, data of 481(42%) represented the final study sample. Of these, 306(63.6%) were injured in open spaces and 175(36.4%) in semi-confined spaces. Of the 896 recorded injuries, lacerations were encountered as external injury in 427(47.7%) cases, followed by penetrating wounds in 137(15.3%). Lower and upper extremities were injured in 348(38.8%) and 170(19%) victims respectively. Open and semi-confined blast environments produced specific injury pattern and profile (p<0.001).

CONCLUSIONS

External injuries sustained during bomb blast attacks in Karachi demonstrated specific injury patterns and profiles. Further studies are required to account for internal injuries and classification of injuries based on standardised scoring systems.

Guiding principles for the conduct of the Violence Study of Healthcare Workers and System (ViSHWaS): Insights from a global survey

BACKGROUND

Although many studies worldwide have reported on violence against health care workers, there is a lack of homogeneous data for understanding the current state of the issue. Conducting a global survey required a robust team organisation structure, unique dissemination strategies, and continual networking to maintain and propagate the pool of survey collaborators and responders. Here we aimed to describe the strategies that helped us carry out a global survey-based study, the lessons learned, and provide a practical roadmap for future large-scale cross-sectional studies.

METHODS

We conducted this cross-sectional survey-based study from 6 June to 9 August 2022, basing it on the 'Hub and Spoke' model, with a single core team and subgroups in different regions managed by country leads. The key steps included team organisation, strategy formulation for survey dissemination and data collection, social media launch, and conducting a post-survey analysis amongst the collaborators. The core team convened weekly via video conference to discuss the modus operandi. The language barrier was managed through audio translation or by shifting to 'an interviewer-administered' questionnaire.

RESULTS

The core team included 11 members from seven countries, followed by 28 country leads from 110 countries. We also gathered 80 regional collaborators who provided feedback and spread the message. The Violence Study of Healthcare Workers and Systems (ViSHWaS) returned 5500 responses globally. Guiding principles garnered through this collaborative project include focusing on effective team organisation, ensuring external validation of survey tool, personalised communication, global networking, timely communication for maintaining momentum, and addressing regional limitations. The post-survey analysis showed that WhatsApp messaging was the most common modality used for survey dissemination, followed by in-person meetings and text messaging. We noted that the successful techniques were direct communication with respondents, regular progress updates, responsiveness to regional and country lead needs, and timely troubleshooting. The most common barriers for the respondents were limitations in language proficiency, technical fallouts, lack of compliance with, and difficulty understanding the questionnaire.

CONCLUSIONS

In this global survey-based study of more than 5500 responses from over 110 countries, we noted valuable lessons in team management, survey dissemination, and addressing barriers to collaborative research.

Malnutrition and Obesity in Patients with COPD Exacerbation, Insights from the National Inpatient Sample

Background

The obesity paradox suggests that obese patients with Chronic Obstructive Pulmonary Disease Exacerbation (COPDE) may have better outcomes. COPD patients are at a higher risk of becoming malnourished, which has been linked to poor outcomes.

Objective

This paper aims to study the impact of malnutrition in patients with and without obesity hospitalized with COPDE.

Methods

Our retrospective study analyzed data from the National Inpatient Sample dataset between 2017 and 2020 to observe patients who were hospitalized with COPDE. The patients were divided into two groups: with and without malnutrition. The outcomes included all-cause mortality, invasive mechanical ventilation, length of stay, and total charge. We adjusted for confounders using multivariate regression model analysis.

Results

The study involved 392,920 patients with COPDE, out of which 5720 (1.45%) were diagnosed with malnutrition. Most of the patients in both groups were female, white, and under Medicare coverage. The mean age was higher in patients with malnutrition (67.6 vs. 64 years). In both groups, the rates of admissions were lowest in 2020 compared to three years prior. The rates and adjusted odds ratios of all-cause mortality were higher in patients with malnutrition (3.59% vs. 0.61%, P <0.01; adjusted odds ratio (aOR) 2.36, P<0.01, CI 1.8-3.7). We observed comparable findings when using invasive mechanical ventilation (13.2% vs. 2.82%, P<0.01, aOR 4.9, P<0.01, 3.9-6). Malnourished patients had a lengthier hospital stay and a greater total charge.

Conclusion

Malnutrition was identified as an independent risk factor associated with worse outcomes in obese patients admitted with COPD exacerbation.

The Association of Latitude and Altitude with COVID-19 Symptoms: A VIRUS: COVID-19 Registry Analysis

BACKGROUND

Better delineation of COVID-19 presentations in different climatological conditions might assist with prompt diagnosis and isolation of patients.

OBJECTIVES

To study the association of latitude and altitude with COVID-19 symptomatology.

METHODS

This observational cohort study included 12267 adult COVID-19 patients hospitalized between 03/2020 and 01/2021 at 181 hospitals in 24 countries within the SCCM Discovery VIRUS: COVID-19 Registry. The outcome was symptoms at admission, categorized as respiratory, gastrointestinal, neurological, mucocutaneous, cardiovascular, and constitutional. Other symptoms were grouped as atypical. Multivariable regression modeling was performed, adjusting for baseline characteristics. Models were fitted using generalized estimating equations to account for the clustering.

RESULTS

The median age was 62 years, with 57% males. The median age and percentage of patients with comorbidities increased with higher latitude. Conversely, patients with comorbidities decreased with elevated altitudes. The most common symptoms were respiratory (80%), followed by constitutional (75%). Presentation with respiratory symptoms was not associated with the location. After adjustment, at lower latitudes (<30º), patients presented less commonly with gastrointestinal symptoms (p<.001, odds ratios for 15º, 25º, and 30º: 0.32, 0.81, and 0.98, respectively). Atypical symptoms were present in 21% of the patients and showed an association with altitude (p=.026, odds ratios for 75, 125, 400, and 600 meters above sea level: 0.44, 0.60, 0.84, and 0.77, respectively).

CONCLUSIONS

We observed geographic variability in symptoms of COVID-19 patients. Respiratory symptoms were most common but were not associated with the location. Gastrointestinal symptoms were less frequent in lower latitudes. Atypical symptoms were associated with higher altitude.