Thoracolumbar spine injury in Cameroon: etiology, management, and outcome.

BACKGROUND: Thoracolumbar spine injury (TLSI) is a major concern worldwide despite its low prevalence. Studies demonstrate a gradual rise in annual incidence. There have been improvements in its management. However, a lot is still to be done. TLSI secondary to trauma usually occurs abruptly and leaves demeaning consequences, especially in our setting where the prognosis from several studies is poor. This study aimed to describe the etiology, management principles, and prognosis of TLSI in Douala General Hospital and as such contribute data on those aspects in the research community. METHOD: This was a hospital-based five-year retrospective study. The study population was patients treated for TLSI in the Douala General Hospital from January 2014 to December 2018. Patients' medical records were used to retrieve data. Data analysis was done using SPSS Version 23. Logistic regression models were fitted to assess the association between dependent and independent variables. Statistical significance was set at 95% CI, with a P-value < 0.05. RESULTS: We studied a total of 70 patients' files including 56 males. The mean age of occurrence of TLSI was 37.59 ± 14.07 years. The most common etiology was road traffic accidents (45.7%) and falls (30.0%). Half of our patients (n = 35) had an incomplete neurological deficit (Frankel B - D). Paraplegia was the most common motor deficit (42.9%). The lumbar spine was affected in 55.7% of cases. The most common CT scan finding was fracture of the vertebrae (30%) while the most reported MRI finding was disc herniation with contusion (38.5%). More than half (51.4%) of our patients were referred from peripheral health centers. The median arrival time was 48 h (IQR: 18-144) with 22.9% reporting after a week post-injury. Less than half (48.1%) benefited from surgery, and 41.4% of our population benefited from in-hospital rehabilitation. The median in-hospital delay time for surgery was 120 h (IQR: 66-192). While the median time between injury and surgery was 188 h (IQR: 144-347). The mortality rate was 5.7% (n = 4). Almost all (86.9%) of the patients developed complications and we had a 61.4% improvement in neurological status upon discharge. Being covered by health insurance was a predictor of improved neurological status (AOR = 15.04, 95%CI:2.90-78.20, P = 0.001) while being referred was a predictor of a stationary neurological status upon discharge (AOR = 0.12, 95%CI:0.03-0.52, P = 0.005). The average hospital stay was 20 days. We did not identify any predictors of lengthy hospital stay. CONCLUSION: Road traffic accident is the most common etiology of TLSI. The arrival time to a neurosurgery specialized center after a traumatic injury, and the in-hospital delay time for surgery is high. Reduction of these delays, encouraging universal health insurance coverage, and improving on management to reduce complications would better the outcome of TLSI which is comparable with those in other studies.

Evaluating Shifts in Perception After a Pilot Trauma Quality Improvement Training Course in Cameroon.

INTRODUCTION: Trauma is a major contributor to the global burden of disease, with low- and middle-income countries (LMICs) being disproportionately affected. Trauma Quality Improvement (QI) initiatives could potentially save an estimated two million lives each year. Successful trauma QI initiatives rely on adequate training and a culture of quality among hospital staff. This study evaluated the effect of a pilot trauma QI training course on participants' perceptions on leadership, medical errors, and the QI process in Cameroon. METHODS: Study participants took part in a three-day, eight-module course training on trauma QI methods and applications. Perceptions on leadership, medical errors, and QI were assessed pre and post-course using a 15-item survey measured on a five-point Likert scale. Median pre- and post-course scores were compared using the Wilcoxon signed-rank test. Knowledge retention and course satisfaction were also evaluated in a post-course survey and evaluation. RESULTS: A majority of the 25 course participants completed pre-course (92%) and post-course (80%) surveys. Participants' perceptions of safety and comfort discussing medical errors at work significantly increased post-course (pre-median = 5, IQR [4-5]; post-median = 5, IQR [5-5]; P = 0.046). The belief that individuals responsible for medical error should be held accountable significantly decreased after the course (pre-median = 3, IQR [2-4]; post-median = 1, IQR [1-2]; P < 0.001). Overall satisfaction with the course was high with median scores ≥4. CONCLUSIONS: These initial results suggest that targeted trauma QI training effectively influences attitudes about QI. Further investigation of the effect of the trauma QI training on hospital staff in larger courses is warranted to assess reproducibility of these findings.

Association between measures of adiposity and blood pressure levels in adult Cameroonians.

INTRODUCTION: Several anthropometric measurements are variably recommended to assess adiposity in routine practice, with less agreement on their comparative performance. We assessed and compared the relationship of seven anthropometric measures of adiposity-waist circumference (WC), waist-to-height ratio (WHtR), Body Mass Index (BMI), Ponderal Index (PI), Conicity Index (C index), A Body Shape Index (ABSI), and Body Roundness Index (BRI)-with blood pressure (BP) levels and prevalent hypertension in adult Cameroonians. METHODS: Data were collected as Cameroon's contribution to the global May Measurement Month 2017(MMM17) survey. Participants were nonpregnant adults, who had no BP measurement in the past year and with no prior hypertension diagnosis. Hypertension was defined as systolic BP ≥140 mm Hg and/or diastolic ≥90 mm Hg. Odds ratios (ORs) for the presence of hypertension per 1 SD increase in each adiposity metrics were estimated in separate logistic regression models. Assessment and comparison of discrimination used the area under the receiver operating characteristics curve (AUC) and nonparametric methods. RESULTS: We included 14 424 participants (8210 [58.25%] female; 39.84 ± 14.33 years). There was a graded association between measures of adiposity and prevalent screen-detected (newly diagnosed) hypertension, with effect sizes being mostly within the same range across measures of adiposity. AUC for hypertension prediction ranged from 0.709 with PI to 0.721 with BRI for single measures, and from 0.736 to 0.739 with combinations of measures of adiposity. CONCLUSION: WC, WHtR, and BRI were strongly associated with BP and better predicted prevalent hypertension, with effects enhanced with the inclusion of BMI.

Sarcomatoid malignant peritoneal mesothelioma presenting as a localized mesenteric tumor with no previous asbestos exposure.

Sarcomatoid malignant peritoneal mesothelioma is the rarest and most lethal form of peritoneal mesothelioma. We present the case of a sarcomatoid malignant peritoneal mesothelioma presenting as a localized mesenteric tumor in a 54-year-old female with no previous asbestos exposure. This clinical presentation is extremely rare and is the first documented in Cameroon.

Gastric outlet obstruction secondary to peptic ulcer disease, previously misdiagnosed as idiopathic hypertrophic pyloric stenosis in a 16-year-old girl: a case report.

Gastric outlet obstruction encompasses a broad spectrum of conditions characterized by complete or incomplete obstruction of the distal stomach, which interrupts gastric emptying and prevents the passage of gastric contents beyond the proximal duodenum. Idiopathic hypertrophic pyloric stenosis is the most common cause with an incidence of 1.5-3 per 1000 live births. However, it is excluded; other causes in children such as peptic ulcer disease are relatively rare. We report a case of an acquired gastric outlet obstruction due to peptic ulcer disease, previously misdiagnosed as idiopathic hypertrophic pyloric stenosis in a 16-year-old girl. Beyond the rarity of this clinical event, this case highlights the challenges of the aetiological diagnosis of gastric outlet obstruction with subsequent therapeutic issues, and is the first documented case in Cameroon.

Financial Risk Protection and Hospital Admission for Trauma in Cameroon: An Analysis of the Cameroon National Trauma Registry.

BACKGROUND: Half of the global population is at risk for catastrophic health expenditure (CHE) in the event that they require surgery. Universal health coverage fundamentally requires protection from CHE, particularly in low- and middle-income countries (LMICs). Financial risk protection reports in LMICs covering surgical care are limited. We explored the relationship between financial risk protection and hospital admission among injured patients in Cameroon to understand the role of health insurance in addressing unmet need for surgery in LMICs. METHODS: The Cameroon National Trauma Registry, a database of all injured patients presenting to the emergency departments (ED) of three Cameroonian hospitals, was retrospectively reviewed between 2015 and 2017. Multivariate regression analysis identified predictors of hospital admission after injury and of patient report of cost inhibiting their care. RESULTS: Of the 7603 injured patients, 95.7% paid out-of-pocket to finance ED care. Less than two percent (1.42%) utilized private insurance, and more than half (54.7%) reported that cost inhibited their care. In multivariate analysis, private insurance coverage was a predictor of hospital admission (OR 2.17, 95% CI: 1.26, 3.74) and decreased likelihood of cost inhibiting care (OR 0.34, 95% CI: 0.20, 0.60) when compared to individuals paying out-of-pocket. CONCLUSION: The prevalence of out-of-pocket spending among injured patients in Cameroon highlights the need for financial risk protection that encompasses surgical care. Patients with private insurance were more likely to be admitted to the hospital, and less likely to report that cost inhibited care, supporting private health insurance as a potential financing strategy.

Baseline Patient Safety Culture in Cameroon: Setting a Foundation for Trauma Quality Improvement.

BACKGROUND: Trauma quality improvement (QI) has resulted in decreased trauma mortality and morbidity in high-income countries and has the potential to do the same in low- and middle-income countries. Effective implementation of QI programs relies on a foundational culture of patient safety; however, studies on trauma-related patient safety culture in Sub-Saharan Africa remain scarce. This study assesses baseline patient safety culture in Cameroon to best identify opportunities for improvement. MATERIALS AND METHODS: Over a 3-week period, the Hospital Survey on Patient Safety Culture was administered in three hospitals in the Littoral region of Cameroon. Percentages of positive responses (PPRs) were calculated across 42 items in 12 survey dimensions. A mixed-effects logistic regression model was used to summarize dimension-level percentages and confidence intervals. RESULTS: A total of 179 trauma-related hospital personnel were surveyed with an overall response rate of 76.8%. High PPRs indicate favorable patient safety culture. Of the 12 dimensions evaluated by the Hospital Survey on Patient Safety Culture, nine had a PPR below 50%. Dimensions particularly pertinent in the context of QI include Nonpunitive Response to Errors with a PPR of 25.8% and Organization Learning-Continuous Improvement with a PPR of 64.7%. CONCLUSIONS: The present study elucidates an opportunity for the development of trauma patient safety culture in Cameroon. Low PPR for Nonpunitive Response to Errors indicates a need to shift cultural paradigms from ascribing individual blame to addressing systemic shortcomings of patient care. Moving forward, data from this study will inform interventions to cultivate patient safety culture in partnering Cameroonian hospitals.

Duodeno-pancreatic and extrahepatic biliary tree trauma: WSES-AAST guidelines.

Duodeno-pancreatic and extrahepatic biliary tree injuries are rare in both adult and pediatric trauma patients, and due to their anatomical location, associated injuries are very common. Mortality is primarily related to associated injuries, but morbidity remains high even in isolated injuries. Optimal management of duodeno-bilio-pancreatic injuries is dictated primarily by hemodynamic stability, clinical presentation, and grade of injury. Endoscopic and percutaneous interventions have increased the ability to non-operatively manage these injuries. Late diagnosis and treatment are both associated to increased morbidity and mortality. Sequelae of late presentations of pancreatic injury and complications of severe pancreatic trauma are also increasingly addressed endoscopically and with interventional radiology procedures. However, for moderate and severe extrahepatic biliary and severe duodeno-pancreatic injuries, immediate operative intervention is preferred as associated injuries are frequent and commonly present with hemodynamic instability or peritonitis. The aim of this paper is to present the World Society of Emergency Surgery (WSES) and American Association for the Surgery of Trauma (AAST) duodenal, pancreatic, and extrahepatic biliary tree trauma management guidelines.

Kidney and uro-trauma: WSES-AAST guidelines.

Renal and urogenital injuries occur in approximately 10-20% of abdominal trauma in adults and children. Optimal management should take into consideration the anatomic injury, the hemodynamic status, and the associated injuries. The management of urogenital trauma aims to restore homeostasis and normal physiology especially in pediatric patients where non-operative management is considered the gold standard. As with all traumatic conditions, the management of urogenital trauma should be multidisciplinary including urologists, interventional radiologists, and trauma surgeons, as well as emergency and ICU physicians. The aim of this paper is to present the World Society of Emergency Surgery (WSES) and the American Association for the Surgery of Trauma (AAST) kidney and urogenital trauma management guidelines.

Predictors of mortality of pediatric burn injury in the Douala General Hospital, Cameroon.

INTRODUCTION: Burn injuries are a major cause of hospitalization and are associated with significant morbidity and mortality, particularly in children aged four years or below. In Cameroon, the mortality rate of pediatric severe burns was estimated at 41.2%. There is need to determine the predictors of such mortality in order to guide appropriate management. METHODS: This study is aimed at assessing the predictors of mortality of pediatric patients who sustained a burn injury over a period of 11 years (between 1st of January 2006 and 31st of December 2016) in Douala General Hospital (DGH). The data for this study was entered in an electronic questionnaire and analyzed using Epi info version 7. All variables thought to be associated with mortality were entered in a multiple binary logistic regression model. The magnitude or risk was measured by odds ratio, and the 95% confidence interval was estimated. RESULTS: A total of 125 cases of pediatric burns were recorded over the study period. A total of 69 (55.65%) were males, giving a male to female ratio of 1.25:1. The median age was 4 years. Most pediatric burns resulted from accidents. Most patient 78 (69%) came before 8 hours following injury. Scalding was the predominant mechanism of injury in 56 (45.5%) of patients. Most patients had partial thickness burn and most burns involved 1-9.9% body surface areas (BSA). The mean length of hospital stay in this study was 7 days, more than half of the patients had no complications during admission. Among those that developed complications, 19 (35%) developed sepsis. CONCLUSION: Mortality rate of pediatric burns obtained in this study was 29%, mostly due to cardiac arrest. Flame burns (p=0.03) and BSA >25% (p=0.001) were statistically significant predictors of mortality.

The Prevalence and Characteristics of Untreated Hernias in Southwest Cameroon.

BACKGROUND: Hernias are one of the most commonly encountered surgical conditions, and every year, more than 20 million hernia repairs are performed worldwide. The surgical management of hernia, however, is largely neglected as a public health priority in developing countries, despite its cost-effectiveness. To date, the prevalence and impact of hernia have not been formally studied in a community setting in Cameroon. The aim of this study was to determine the prevalence and characteristics of untreated hernia in the Southwest region of Cameroon. METHODS: This study was a subanalysis of a cross-sectional community-based survey on injury in Southwest Cameroon. Households were sampled using a three-stage cluster sampling method. Household representatives reported all untreated hernias occurring in the past year. Data on socioeconomic factors, hernia symptoms, including the presence of hernia incarceration, and treatment attempts were collected between January 2017 and March 2017. RESULTS: Among 8065 participants, 73 persons reported symptoms of untreated hernia, resulting in an overall prevalence of 7.4 cases per 1000 persons (95% confidence limit 4.98-11.11). Groin hernias were most commonly reported (n = 49, 67.1%) and predominant in young adult males. More than half of persons with untreated hernia (56.7%) reported having symptoms of incarceration, yet 42.1% (n = 16) of these participants did not receive any surgical treatment. Moreover, 21.9% of participants with untreated hernias never presented to formal medical care, primarily because of the high-perceived cost of care. Untreated hernias caused considerable disability, as 21.9% of participants were unable to work because of their symptoms, and 15.1% of households earned less money. CONCLUSIONS: Hernia is a significant surgical problem in Southwest Cameroon. Despite over half of those with unrepaired hernias reporting symptoms of incarceration, home treatment and nonsurgical management were common. Costs associated with formal medical services are a major barrier to obtaining consultation and repair. Greater awareness of hernia complications and cost restructuring should be considered to prevent disability and mortality due to hernia.

Machine learning without borders? An adaptable tool to optimize mortality prediction in diverse clinical settings.

BACKGROUND: Mortality prediction aids clinical decision making and is necessary for quality improvement initiatives. Validated metrics rely on prespecified variables and often require advanced diagnostics, which are unfeasible in resource-constrained contexts. We hypothesize that machine learning will generate superior mortality prediction in both high-income and low- and middle-income country cohorts. METHODS: SuperLearner, an ensemble machine-learning algorithm, was applied to data from three prospective trauma cohorts: a highest-activation cohort in the United States, a high-volume center cohort in South Africa (SA), and a multicenter registry in Cameroon. Cross-validation was used to assess model discrimination of discharge mortality by site using receiver operating characteristic curves. SuperLearner discrimination was compared with standard scoring methods. Clinical variables driving SuperLearner prediction at each site were evaluated. RESULTS: Data from 28,212 injured patients were used to generate prediction. Discharge mortality was 17%, 1.3%, and 1.7% among US, SA, and Cameroonian cohorts. SuperLearner delivered superior prediction of discharge mortality in the United States (area under the curve [AUC], 94-97%) and vastly superior prediction in Cameroon (AUC, 90-94%) compared with conventional scoring algorithms. It provided similar prediction to standard scores in the SA cohort (AUC, 90-95%). Context-specific variables (partial thromboplastin time in the United States and hospital distance in Cameroon) were prime drivers of predicted mortality in their respective cohorts, whereas severe brain injury predicted mortality across sites. CONCLUSIONS: Machine learning provides excellent discrimination of injury mortality in diverse settings. Unlike traditional scores, data-adaptive methods are well suited to optimizing precise site-specific prediction regardless of diagnostic capabilities or data set inclusion allowing for individualized decision making and expanded access to quality improvement programming. LEVEL OF EVIDENCE: Prognostic and therapeutic, level II and III.

A prospective analysis of pinch grafting of chronic leg ulcers in a series of elderly patients in rural Cameroon.

BACKGROUND: Chronic leg ulcers (CLUs) pose serious public health concerns worldwide. They mainly affect the elderly population. Pinch grafting (PG) could be used to treat a variety of CLUs. However, in Cameroon, there is scarce data on the outcome of PG of CLUs in elderly patients in rural hospitals where most of these patients seek for medical attention and where clinicians rely on unconventional wound dressing methods to treat CLUs. Our objective was to describe the outcome of PG of CLUs in elderly patients in rural Cameroon. METHODS: This was a prospective study conducted in a rural hospital of North West Cameroon. From February 2015 to January 2016, comprehensive historical and clinical data were collected per elderly patient who presented with a chronic leg ulcer necessitating PG. PG was done using a simple procedure and each patient followed up for 8 months. Outcome was described in terms of ulcer healing and pain and donor site complications. RESULTS: Our series included 13 patients: 8 males (61.54%; 95% CI: 31.58-86.14) and 5 females (38.46%; 95% CI: 13.86-68.42) aged from 69 to 88 years (mean: 77.54 ± 5.70 years). Three patients (23.08%; 95% CI: 5.04-53.81) had associated co-morbidities. All the ulcers were unilateral with durations ranging from 7 to 41 months (mean: 19.46 ± 11.03 months). The ulcers ranged in size from 9.0 to 38.1 cm2 (mean: 17.66 ± 8.35 cm 2). We registered one (7.69%; 95% CI: 0.19-36.03) graft rejection. Concerning the other ulcers, ten (83.33%; 95% CI: 51.59-97.91) had healed after 12 postoperative weeks while 2 (16.67%; 95% CI: 2.09%-48.41) had healed after 14 postoperative weeks and the mean healing time was 12.33 ± 0.78 weeks. Patients with healed ulcers had reduced ulcer site pain from the immediate postoperative period but there was no significant difference in the mean pain scores before and after graft (6.77 against 4.23, p = 0.13). These ulcers remained healed after 8 postoperative months. Each donor site had healed 2 weeks after PG. Donor site problems were minimal and included hypopigmentation. CONCLUSION: The outcome of PG of CLUs in our series of older patients was satisfactory. This finding does not discount the role of conservative therapy, but we encourage clinicians in rural Cameroon to consider PG over long-term unconventional conservative therapy in the elderly.

Implementation of the World Health Organization Trauma Care Checklist Program in 11 Centers Across Multiple Economic Strata: Effect on Care Process Measures.

BACKGROUND: Trauma contributes more than ten percent of the global burden of disease. Initial assessment and resuscitation of trauma patients often requires rapid diagnosis and management of multiple concurrent complex conditions, and errors are common. We investigated whether implementing a trauma care checklist would improve care for injured patients in low-, middle-, and high-income countries. METHODS: From 2010 to 2012, the impact of the World Health Organization (WHO) Trauma Care Checklist program was assessed in 11 hospitals using a stepped wedge pre- and post-intervention comparison with randomly assigned intervention start dates. Study sites represented nine countries with diverse economic and geographic contexts. Primary end points were adherence to process of care measures; secondary data on morbidity and mortality were also collected. Multilevel logistic regression models examined differences in measures pre- versus post-intervention, accounting for patient age, gender, injury severity, and center-specific variability. RESULTS: Data were collected on 1641 patients before and 1781 after program implementation. Patient age (mean 34 ± 18 vs. 34 ± 18), sex (21 vs. 22 % female), and the proportion of patients with injury severity scores (ISS) ≥ 25 (10 vs. 10 %) were similar before and after checklist implementation (p > 0.05). Improvement was found for 18 of 19 process measures, including greater odds of having abdominal examination (OR 3.26), chest auscultation (OR 2.68), and distal pulse examination (OR 2.33) (all p < 0.05). These changes were robust to several sensitivity analyses. CONCLUSIONS: Implementation of the WHO Trauma Care Checklist was associated with substantial improvements in patient care process measures among a cohort of patients in diverse settings.

Indications and morbidity of tube thoracostomy performed for traumatic and non-traumatic free pleural effusions in a low-income setting.

INTRODUCTION: Tube thoracostomy (TT) is widely used to resolve a number of pleural conditions. Few data are available on the complications of TT performed for non-traumatic conditions, especially in low income setting. The aim of this study is to analyse the indications and complications of TT performed for both traumatic and non-traumatic conditions of the chest in a low-income environment. METHODS: This retrospective study conducted over a four years period in a the Regional Hospital, Limbe in South-West Cameroon analyses the rate and nature of complications after TT performed for both traumatic and non-traumatic conditions. Different factors related to complications are analysed. RESULTS: We analysed 134 patients who had 186 chest tubes inserted. After placement, tubes were either connected to a water seal system (40%) or submitted to suction (60%). Most (91%) procedures were performed for a non-traumatic condition. Non-infectious pleural effusion in patients with HIV infection or pulmonary tuberculosis was the most common indication. Sixty six per-cents of procedures were carried out by a general surgeon. The complication rate was 19.35%. The most common complications included tube dislocation and pneumothorax. Most complications were solved by replacement of the tube. The nature of operator (general surgeon vs general practitioner) was a significant predictor of outcome (p < 0.01). No procedure related death was recorded. CONCLUSION: TT is a safe and efficient procedure to drain pleural collections of both traumatic and non-traumatic origins, even in low-income settings. The incidence of complications could be reduced by a better training of general practitioners on this procedure.

Complicated intra-abdominal infections in a worldwide context: an observational prospective study (CIAOW Study).

Despite advances in diagnosis, surgery, and antimicrobial therapy, mortality rates associated with complicated intra-abdominal infections remain exceedingly high. The World Society of Emergency Surgery (WSES) has designed the CIAOW study in order to describe the clinical, microbiological, and management-related profiles of both community- and healthcare-acquired complicated intra-abdominal infections in a worldwide context. The CIAOW study (Complicated Intra-Abdominal infection Observational Worldwide Study) is a multicenter observational study currently underway in 57 medical institutions worldwide. The study includes patients undergoing surgery or interventional drainage to address complicated intra-abdominal infections. This preliminary report includes all data from almost the first two months of the six-month study period. Patients who met inclusion criteria with either community-acquired or healthcare-associated complicated intra-abdominal infections (IAIs) were included in the study. 702 patients with a mean age of 49.2 years (range 18-98) were enrolled in the study. 272 patients (38.7%) were women and 430 (62.3%) were men. Among these patients, 615 (87.6%) were affected by community-acquired IAIs while the remaining 87 (12.4%) suffered from healthcare-associated infections. Generalized peritonitis was observed in 304 patients (43.3%), whereas localized peritonitis or abscesses was registered in 398 (57.7%) patients.The overall mortality rate was 10.1% (71/702). The final results of the CIAOW Study will be published following the conclusion of the study period in March 2013.

2013 WSES guidelines for management of intra-abdominal infections.

Despite advances in diagnosis, surgery, and antimicrobial therapy, mortality rates associated with complicated intra-abdominal infections remain exceedingly high.The 2013 update of the World Society of Emergency Surgery (WSES) guidelines for the management of intra-abdominal infections contains evidence-based recommendations for management of patients with intra-abdominal infections.

Analysis of epidemiology, lesions, treatment and outcome of 354 consecutive cases of blunt and penetrating trauma to the chest in an African setting.

BACKGROUND: The proportion of death and disability related to trauma is increasing in Third-World countries. Thoracic trauma is significantly involved, but few data are available on this issue in African countries with specific local conditions. METHODS: The aim of the study is to analyse the diagnosis and management procedures in thoracic trauma in a typical African country. The records of 354 patients admitted to an emergency unit for chest trauma over a 13-year period were retrospectively analysed. RESULTS: The sample included patients with 231 cases of blunt and 123 of penetrating trauma to the chest; their mean age was 41.86 years, and the male:female ratio was 4.2:1. The majority (N=226) of the injuries were sustained in road traffic accidents, and the most common lesions were rib fractures (50.3%) and haemothorax (38.7%). The diagnosis was based on physical examination and standard chest radiographs in most cases. At least one associated lesion was found in 260 (73.45%) patients. The mean injury severity score (ISS) for our patients was 16.39. Most patients were managed conservatively (N=303); thoracotomy was performed mostly on penetrating trauma patients. Morbidity occurred in 49 patients, mainly affecting those treated with thoracic drainage, and 27 patients (7.6%) died. Factors related to mortality were ISS score and association with neurotrauma. CONCLUSIONS: Chest trauma can be managed in our Cameroonian environment, with morbidity and mortality comparable with that of Western countries. Diagnosis must still rely on physical examination, chest radiographs and thoracic echography, which are affordable tools.

Retained sponge after abdominal surgery: experience from a third world country.

BACKGROUND: Retained abdominal sponge after surgery is a quite rare condition which can have heavy medico-legal consequences; its frequency is generally underestimated. Few reports of these conditions are available in African environment with specific technical and medico-legal background. We present our local experience of retained sponges after abdominal surgery and review current literature. METHOD: A retrospective analysis of the medical files of 14 consecutive patients with a retained surgical sponge after abdominal and urological surgery. RESULTS: The incidence was 1every 677 abdominal operations; no metallic foreign body described, only sponges; the female sex predominated with 10/14 patients. 85.71% of retained sponge occurred after an emergency procedure and 64.28% were gynecological or obstetrical procedures. Most cases presented as intestinal obstruction, localized persistent pain or abdominal mass and pre-operative diagnosis could be done only in 28.57% of cases. A falsely correct sponge count was reported in 71.42% of cases 92.85% of patients were re-operated and the morbidity was low; no death was reported. None of our cases ended in a medico-legal claim despite proper counseling. CONCLUSION: The incidence of retained sponge might be significantly higher in an environment with reduced medico-legal threat; most cases of retained sponges are still related to human errors; the incidence will probably be reduced by a greater awareness about the condition.