Background: Acute pancreatitis (AP) can be life-threatening with unpredictable severity. Despite advances in management, its pathogenesis remains unclear. This study investigated metabolites and lipoprotein profiles in AP patients of African descent to understand the underlying pathophysiological conditions so as to inform prognosis and management. Methods: Serum samples were collected from 9 healthy controls (HCs) and 30 AP patients (8 with mild AP, 14 with moderately severe AP, and 8 with severe AP) on days 1, 3, 5, and 7 post epigastric pain and subjected to nuclear magnetic resonance (NMR) spectroscopy. Wilcoxon and Kruskal–Wallis rank-sum tests compared numerical covariates. Lipoprotein characterization was performed using the Liposcale test, and Spearman’s rank test assessed data correlations. The p-values < 0.05 indicated significance. Results: Thirty-eight metabolic signals and information on lipoprotein subclasses were identified from the NMR spectra. The severity of AP correlated with increased levels of 3-hydroxybutyrate and acetoacetate and decreased levels of ascorbate. Distinct metabolic phenotypes were identified and characterized by unique inflammatory and lipoprotein profiles. High-density lipoprotein cholesterol (HDL-C) decreased across all the metabolic phenotypes of AP when compared with the HC, while elevated immediate density lipoprotein cholesterol (IDL-C) and very low-density lipoprotein cholesterol (VLDL-C) levels were observed. Time-dependent changes in metabolites were indicative of responsiveness to therapy. Conclusions: Our findings indicate that dysregulated metabolites and lipoproteins can be used to differentiate AP disease state and severity. Furthermore, integrating clinical parameters with data on metabolic and lipoprotein perturbations can contribute to a better understanding of the complex pathophysiology of AP.

Background: Fractured ribs remain a significant cause of morbidity and are associated with severe injuries requiring several healthcare resources and may be associated with prolonged hospital stays that may require an ICU facility. In our facility, we have a high burden of patients sustaining rib fractures, and we aim to compare management options, outcomes, and factors associated with mortality from a single center. Methods: A retrospective review was performed on patients who presented with rib fractures at a Level 1 Trauma facility in Johannesburg, undergoing medical or surgical management. The study included data from 1 July 2011 until 31 December 2020. All patients were identified using the Medibank database. STATA Version 18 software was used for all data analysis. A p-value of ribs. Only 4.6% sustained a flail chest. The median SBP was 126 mmHg (IQR:109–144), and the pulse rate was 91 (IQR: 79–108) beats per minute. The mean Injury Severity Score (ISS) and New Injury Severity Score (NISS) were 17 (IQR: 10–29) and 22 (IQR: 14–34), respectively. The most common associated injuries were chest trauma in 42%, combined abdominal and pelvic trauma in 35%, and severe extremity trauma in 37%. The mortality rate was 17% (159/940). Most patients required medical and supportive management, with only 8% undergoing rib plating (76/940). The mean length of stay was 14 days (IQR: 6–25). Statistically significant factors associated with mortality were rib fractures 3≥, flail chest, higher ISS, severe head, neck, chest, abdomen and pelvis injuries (p-value 0.001) and severe extremity injury (p-value 0.006). Conclusions: Rib fractures remain a common pathology in the trauma population, and these patients can have significant associated injuries. With an appropriate multidisciplinary approach, our study found an 83% survival rate, and only 8% of patients requiring surgical intervention. Poor outcomes in patients are directly linked to the number of ribs involved, the injury severity score, associated injuries, and advanced age.

Background: Gall bladder cancer (GBC) is the most common biliary tract malignancy and is often diagnosed at advanced stages, partly due to the absence of reliable biomarkers and limited understanding of its biology in African populations. This study aimed to characterize the metabolomic and lipoprotein profiles of GBC patients of Black African ancestry. Methods: NMR spectroscopy was used to profile the serum samples. Group comparisons used Wilcoxon tests, correlations used Spearman’s rank test, unsupervised analysis was carried out using the KODAMA algorithm, partial least squares modeling estimated free cholesterol (FC) to cholesterol ester (CE) ratios, while multivariate logistic regression evaluated independent predictors. Results: GBC patients showed altered ethanol levels and dysregulated lipoproteins, including increased IDL-C, IDL-TG, and LDL-TG, and decreased HDL-C, HDL-P, and medium HDL-P. Total and conjugated bilirubin strongly correlated with lipoproteins. Unsupervised analysis revealed a GBC subgroup with abnormal lipoprotein profiles and elevated FC/CE ratios, suggesting cholestasis-related LpX formation. Elevated asparagine, reduced ethanol, and an inflammatory metabolic signature characterized the GBC fingerprint. Ethanol and bilirubin emerged as independent predictors of GBC. Conclusions: GBC patients exhibit distinct metabolomic and lipoprotein alterations that may underlie disease progression and serve as potential biomarkers. These findings enhance understanding of GBC pathophysiology in African populations and may inform future diagnostic strategies.

Tube thoracostomy (TT) is the standard treatment for haemothorax, but 5-30% of cases may result in retained haemothorax. Video-assisted thoracoscopy surgery (VATS) is a recognised treatment for retained haemothorax, although its timing and feasibility can be challenging in resource-limited settings with restricted theatre access. The objective was to evaluate and describe our experience with VATS at Charlotte Maxeke Johannesburg Academic Hospital (CMJAH), South Africa. This was a retrospective study over seven years (1 January 2017 - 31 December 2023). All adult trauma patients with retained haemothorax who underwent VATS were included. Data were collected from hospital databases, focusing on patient demographics, mechanism of injury, vital signs, radiological findings, indications for VATS, and clinical outcomes. A total of 71 patients underwent VATS, with 98.6% being male and an average age of 34 years. The procedure was performed for retained haemothorax in 97% (n = 69) of cases and empyema in two patients. Penetrating trauma was the most common cause, with 82% of patients suffering stab wounds and 18% gunshot wounds. The median time to surgery was 5 days, with a median operating time of 77 minutes. Conversion to thoracotomy occurred in 14% (n = 10) of cases. Intraoperative findings included clots (42%), retained blood (42%), and pus (2.8%). Postoperative complications occurred in 12.7% (n = 9), including pneumonia (2.8%), drain site infections (5.6%), and recurrence of haemothorax (4.2%). The median length of hospital stay after VATS was 6 days, with no in-hospital mortalities. VATS is a safe and feasible option for managing penetrating chest trauma in resource-constrained environments, with low complication rates and low in-hospital mortality rates.

Background: Acute pancreatitis (AP) is a common clinical disease with varying severity. The Revised Atlanta Classification (RAC) categorises AP into mild, moderately severe, and severe (MAP, MSAP and SAP) respectively. Despite the availability of different scoring systems to triage patients, these are not always suitable for predicting the course and outcome of certain patients during admission. In this study, untargeted metabolomics was used to identify metabolic parameters that can potentially be used as prognostic markers for stratifying the risk profiles of patients for improved management and treatment. Methods: Serum isolated from blood samples collected from 30 AP patients (8 MAP, 14 MSAP, and 8 SAP) and 9 healthy control (HC) individuals was analysed using ¹ H nuclear magnetic resonance (NMR) spectroscopy. Wilcoxon and Kruskal–Walli’s rank-sum tests were used to compare differences in numerical covariates. A liposcale test was used for lipoprotein characterization and the Spearman rank test was conducted for correlation of the data. P-values < 0.05 were considered significant. Results: Elevated levels of lactate, (rho = 0.67; p-value < 0.001, FDR = 0.001), 3-hydroxybutyrate (rho = 0.46; p-value < 0.003, FDR = 0.013), acetoacetate (rho = 0.63; p-value < 0.001, FDR < 0.001) and lipid alpha-CH2 (rho = 0.45; p-value = 0.004, FDR = 0.013) were associated with AP severity as was decreased levels of ascorbate (rho = 0.46; p-value < 0.003, FDR = 0.013), methanol (rho = 0.46; p-value < 0.003, FDR = 0.013), glutamine (rho = -0.55; p-value < 0.001, FDR = 0.002), ethanol (rho = 0.64; p-value < 0.001, FDR< 0.001), protein-NH (rho= -0.75; p-value < 0.001, FDR<0.001) among others. HDL-C decreased while IDL-C and VLDL-C increased across all the AP metabolic phenotypes compared to the HC. Conclusion: Dysregulated metabolites and lipids can potentially add to the understanding of the pathophysiological conditions of AP and can aid in the early prognosis and stratification of patients for specialist care.

Background Liver trauma is prevalent in blunt and penetrating injuries. This study examined liver trauma in a South African urban trauma centre, focusing on the unique prevalence of penetrating injuries and surgical interventions. Methods A retrospective analysis was conducted on 512 priority one patients with liver trauma from January 2017 to December 2023 at Charlotte Maxeke Johannesburg Academic Hospital. The data collected included demographics, injury mechanisms, liver injury grades, associated injuries, Injury Severity Scores (ISS and NISS), surgical interventions, and mortality rates. Statistical analyses were performed using Stata and R software. Results The median age of the patients was 31 years, with a predominance of male patients (91%) and of African ethnicity (95%). Penetrating trauma accounted for 73% of the cases. Most liver injuries were minor (grades I – III). There was an overall 5% mortality rate, with a higher rate observed in patients requiring emergency surgery (10% vs. 1% for non-operative management, p < 0.001). Just over half of the patients required emergency laparotomy, and the majority of these patients sustained penetrating liver trauma. Complications occurred in 6.6% of the patients, predominantly biliary in nature. Conclusions This study highlights the high incidence of penetrating liver trauma in South Africa, which reflects the context of interpersonal violence. The mortality rate aligns with international standards and demonstrates the need for effective management strategies. These findings emphasise the need for tailored approaches to liver trauma based on injury patterns and demographics, and further research is needed to explore mortality and complications.