Mortality analysis of burns in a developing country: a CAMEROONIAN experience.

BACKGROUND: Burns are a serious public health problem worldwide accounting for an estimated 265,000 deaths annually from fires alone. The vast majority (96%) of deaths from fire-related burns occur in low- and middle-income countries and burns are one of the leading causes of disability-adjusted life-years (DALYs) in the developing world. Most burn centres are situated in large cities and are inadequate for the high incidence of injuries. An 8 year review of 440 patients in the Douala General Hospital, showed that the majority of patients burned were males (n = 281, 68.9%), the mean age was 25.2 ± 17.77 years with an admission rate of 69.5% (306 patients). The modal and median age were 31.0 years and 25.0 years respectively, interquartile range (0.4-82). Majority of burns (n = 237, 53.9%) had burn surface area ≥ 10%, most burns were 2nd degree (n = 215, 48.9) and the commonest burn agents were flames (n = 170, 37.3%), electricity (n = 119, 26.3%) and water (n = 114, 25.2%). The paucity of data on burn mortality in Cameroon motivated this study and is aimed at determining the mortality rate, causes and factors associated with death of burnt patients in the burn unit of the Douala General Hospital (DGH). METHODS: It was a retrospective observational study carried out from the 1st of January 2008 to the 31st of December 2015 in the Burn Unit of the Douala General Hospital. An adapted questionnaire was used to collect demographic data, burn agents, burn depth; diagnostic delay, burn surface area, complications, comorbidity, mortality and its causes. Data was transferred to Microsoft Excel 2015 and the Statistical Package for Social Sciences (SPSS) version 20.0 for data analysis. RESULTS: During this 8 year period, 440 patients were studied and the mortality rate was 23.4% (103 patients). The fatal burn agents were, flames (n = 69, 67.0%), electricity (n = 15, 14.6%), water (n = 12, 11.6%), contact (n = 4, 3.9%), Oil (n = 2, 1.9%) and chemicals (n = 1, 1.0%). The causes of death were shock (n = 36, 35.0%), sepsis (n = 25, 24.3%), acute respiratory distress (n = 25, 24.3%), acute renal failure (n = 6, 5.8%), severe anaemia (n = 4, 3.9%) and unrecorded causes (n = 7, 6.7%). CONCLUSION: A quarter of all patients died mostly from flame burns and to a lesser extent, electricity and scalds. Increase in burn depth and burn surface area worsened the prognosis. Shock (the commonest cause of death), sepsis, acute respiratory distress, acute renal failure and wound infection were significantly associated with mortality.

Knowledge, attitudes, and practices of Cameroonian physicians with regards to acute pain management in the emergency department: a multicenter cross-sectional study.

INTRODUCTION: Pain is the most frequent presenting complaint in patients consulting or admitted to the emergency department (ED). Thus, its acute management is often done by physicians working in the ED. These clinicians are often general practitioners and not emergency medicine physicians in resource-poor settings. Hence, a mastery of pain management by these physicians may be important in relieving acute pain. We aimed to assess the knowledge, to determine the attitudes and practices of physicians in the management of pain in EDs of Cameroon. METHODS: We carried out a prospective cross-sectional study over 4 months in the year 2018. We enrolled all consenting physicians who were neither emergency medicine doctors nor anesthesiologists working at the EDs of five tertiary hospitals of Cameroon. Using a validated and pretested structured questionnaire, data on the knowledge, attitudes, and practices of acute pain management at the ED by these clinicians were studied. We used an externally validated score to assess the knowledge as either poor, insufficient, moderate or good. RESULTS: A total of 58 physicians were included; 18 interns or residents and 39 general practitioners. Their mean age was 28.6 ± 3 years and their average number of years of practice was 2.9 years. The level of knowledge was rated "poor" in 77.6% of physicians. Being a general practitioner was significantly associated with a poor level of knowledge (p = 0.02; OR = 5.1). We found a negative and significant correlation between knowledge and years of practice (p = 0.04; r2 = 0.06). More than three-quarter (82.8%) of participants used a pain scale to evaluate the severity of pain. The most used scale was the Visual Analog Scale (56.9%). The most frequently used analgesic was paracetamol (98.3%), although only 3.5% of physicians correctly knew its half-life, delay of onset of action and duration of action. CONCLUSION: These findings suggest that physicians in EDs of Cameroon have poor knowledge and suboptimal practices in pain management. General practice and a greater number of professional experience seemed to favour these attitudes. Overall, there is an urgent need for refresher courses in acute pain management for physicians working in these resource-limited EDs.

Incidence, characteristics and prognosis of acute kidney injury in Cameroon: a prospective study at the Douala General Hospital.

OBJECTIVE: There are limited data on AKI in sub-Saharan Africa. We aim to determine the incidence, characteristics and prognosis of AKI in Cameroon. PATIENTS AND METHODS: A prospective study including all consenting acute admissions in the internal medicine and the ICU of a tertiary referral hospital in Cameroon from January 2015 to June 2016. Serum creatinine assay was done on admission, days 2 and 7 to diagnose AKI. For patients with AKI, serum creatinine was done on discharge, days 30, 60 and 90. AKI was defined according to the modified KDIGO 2012 criteria as an increase or decrease in serum creatinine of 3 mg/l or greater, or an increase of 50% or more from the reference value obtained at admission or the known baseline value. AKI severity was graded using KDIGO2012 criteria. Outcome measures were renal recovery, mortality and causes of death. Renal recovery was complete if serum creatinine between the first 90 days was less than baseline or reference, partial if less than diagnosis but not baseline or reference, no-recovery if creatinine did not decrease or if the patient remained on dialysis. RESULTS: Of the 2402 patients included, 536 developed AKI giving a global incidence of 22.3% and annual incidence of 15 per 100 patients-years. Of the 536 patients with AKI, 43.3% were at stage 3, 54.7% were males, median age was 56 years. Pre-renal AKI (61.4%) and acute tubular necrosis (28.9%) were the most frequent forms. Main etiologies were sepsis (50.4%) and volume depletion (31.6%). Renal outcome was unknown in 34% of patients. Of the 354 patients with known renal function at 3 months, 84.2% recovered completely, 14.7% partially and 1.1% progressed to CKD. Global mortality rate was 36.9% mainly due to sepsis. CONCLUSIONS: AKI is frequent in our setting, mainly due to sepsis and hypovolemia. It carries a poor prognosis.

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.

Hyperuricaemia in patients with type 2 diabetes in a tertiary healthcare centre in sub-Saharan Africa: prevalence and determinants.

Hyperuricaemia in type 2 diabetes mellitus (T2DM) has been less well investigated in sub-Saharan Africans. Our study of 438 patients found that alcohol intake, body mass index ≥25 kg/m2, hydrochlorothiazide use, statin use, diabetic retinopathy and glomerular filtration rate <60 mL/min/1.73m2 were independently positively associated with hyperuricaemia; whereas smoking reduced this risk. Hyperuricaemia is strongly associated with some modifiable factors, diabetic complications and certain drugs. Our results suggest that further studies should evaluate the potential cost-benefit of screening for hyperuricaemia in type 2 diabetes.

Trend in admissions, clinical features and outcome of preeclampsia and eclampsia as seen from the intensive care unit of the Douala General Hospital, Cameroon.

INTRODUCTION: Hypertensive disorders in pregnancy (HDP) are a major cause of maternal morbidity and mortality. We aimed at determining the trends in admission, profiles and outcomes of women admitted for preeclampsia and eclampsia to an intensive care unit (ICU) in Cameroon. METHODS: A retrospective study involving 74 women admitted to the ICU of the Douala General Hospital for severe preeclampsia and eclampsia from January 2007 to December 2014. Clinical profiles and outcome data were obtained from patient records. Statistical analysis was performed using SPSS version 20. RESULTS: Of the 74 women admitted to ICU (72.5% for eclampsia), mean age was 30.2years and the majority (90.5%) were aged 20-39 years. While overall trend in admission for HDP increased over the years, mortality remained stable. Mean gestational age (GA) on admission was 34.0 weeks (33.5 for preeclampsia vs 35.4 for eclampsia). Most patients presented with complications of which acute kidney injury was most frequent (66.7%). Visual problems were more common in patients with eclampsia compared to preeclampsia (p = 0.01). HELLP syndrome and acute pulmonary oedema (APO) were predominant in patients with preeclampsia, while cerebrovascular accidents (CVA) occurred more in patients with eclampsia. Overall mortality was 24.3%. Presence of APO was associated with mortality in multivariable analysis (O.R.= 0.03, p = 0,01). CONCLUSION: Trends in admission for HDP were increasing with high but stable mortality rate. Patients presented late most of whom with complications. Interventions improving antenatal care services and multidisciplinary management approach may improve maternal outcome in patients with HDP.

[Changes of Von Willebrand factor concentration during pregnancy]. / Variations de la concentration du facteur Von Willebrand au cours de la grossesse.

The multimeric glycoprotein Von Willebrand factor (vWF), is produced by vascular endothelium and platelet. If some constitutionals deficiencies leading to hemorrhagic syndrome have been explored in the literature, increased production of vWF observed during cellular distress and pregnancy have not been explored in our milieu. The aim of this study was to determine vWF changes during pregnancy in a group of Cameroonian women and find out the possibility of using it as a marker of fetal distress. Serum was collected from 46 women in the second and third trimesters of pregnancy. The determination of vWF concentration was performed using the Asserachrom vWF reagent: Ag (Diagnostica Stago, France). The average concentrations of vWF in the second and third trimester samples were respectively 215.47 ± 9.38% (UI/dL) and 264.09 ± 11.58% (UI/dL). The difference between (i) concentrations of vWF during the second and third trimester of pregnancy was statistically significant (P-value<0.0001); (ii) concentrations of vWF according to mother's ages was not significant; (iii) concentrations of vWF in blood group O and B women was statistically significant (P-value<0.05). We observed a difference between vWF values in women whose babies had Apgar score 4 to 6 compared to those with Apgar score between 7 and 10. The different was not statistically significant probably due to low effective. In conclusion, vWF production during the pregnancy varies with gestational age and maternal blood group. It may increases during fetal distress.

Outcome of late second trimester emergency cerclage in patients with advanced cervical dilatation with bulging amniotic membranes: a report of six cases managed at the douala general hospital, cameroon.

Purpose. To show the feasibility of emergency late second trimester cerclage with advanced cervical dilatation and bulging of amniotic membranes. Setting. Department of Obstetrics and Gynecology of the Douala General Hospital. Method. This is a retrospective study of case files of patients who underwent emergency late second trimester cerclage with advanced cervical dilatation, some with bulging of fetal membranes between June 2003 and June 2010. The modified Shirodkar technique was employed in all the cases. Results. Altogether, six patients (100%) underwent late second trimester cervical cerclage between 24 and 26 weeks of gestational age. Four cases (66.7%) carried on their pregnancies to term that resulted in healthy live-born babies all delivered vaginally. The other two cases (33.3%) presented with preterm premature rupture of fetal membranes (PPROM) which led us to undo the stitch with eventual delivery of live-born premature fetuses which died in the neonatal intensive care unit because of complications of prematurity and neonatal infection. Conclusion. In experienced hands and in the absence of other risk factors like infection, the success rates of this procedure are encouraging with improved prognosis. Finally, the modified Shirodkar technique yielded excellent results in our series.