[Prevalence of albuminuria in children from 5 to 15 years in the town of Kaya (Burkina Faso)]. / Prevalence de l'albuminurie chez des enfants de 5 a 15 ans de la ville de Kaya (Burkina Faso).

INTRODUCTION: Albuminuria, an important marker of kidney damage, is still insufficiently studied in sub-Saharan Africa. The aim of this study is to describe the epidemiology of albuminuria in the town of Kaya in Burkina Faso. METHODS: We conducted a cross-sectional study in the town of Kaya. Simple random sampling was done. It concerned all households with children 5-15 years old of urban area of the town of Kaya. Selected children or their parents were interviewed. Anthropometric measurements and urinary samples were performed. RESULTS: Two hundred six children (113 girls and 93 boys) participated in the study. Albuminuria was found in 18 children whether 8.7% of cases. The mean systolic and diastolic blood pressures of children with albuminuria (107.2 ± 13.6 and 74.7 ± 11.4 mm Hg) were not significantly different from those of children without albuminuria (110.3 ± 14 and 73.1 ± 11.5 mmHg). Sociodemographic factors were not associated with the occurrence of albuminuria in children. DISCUSSION: The prevalence of albuminuria in the strip involved nearly a tenth of children, which is important. CONCLUSION: The results of this study are a first population database of kidney disease in the country. The study should be completed by the identification of cases of persistent albuminuria in this population.

INTRODUCTION: L'albuminurie, important marqueur d'atteinte rénale, est encore insuffisamment étudiée en Afrique subsaharienne. Par la présente étude, nous voulons connaître l'épidémiologie de l'albuminurie dans la ville de Kaya au Burkina Faso. MÉTHODES: Nous avons mené une étude transversale dans la ville de Kaya. Un échantillonnage aléatoire simple a été effectué à partir d'une base de sondage constituée par l'ensemble des ménages ayant des enfants de 5 à 15 ans du milieu urbain de la ville de Kaya. Les enfants sélectionnés ou leurs parents ont été interviewés. Les mesures anthropométriques et des prélèvements urinaires ont été effectués. RÉSULTATS: Deux cent six enfants (113 filles et 93 garçons) ont participé à l'étude. L'albuminurie a été trouvée chez 18 enfants soit 8,7% des cas. Les moyennes des pressions artérielles systolique et diastolique des enfants avec albuminurie (107,2±13,6 et 74,7±11,4 mm Hg) n'étaient pas significativement différentes de celles des enfants sans albuminurie (110,3±14 et 73,1±11,5 mm Hg). Les facteurs sociodémographiques n'étaient pas associés à la survenue de l'albuminurie chez l'enfant. DISCUSSION: La prévalence de l'albuminurie à la bandelette a concerné près d'un dixième des enfants, ce qui est important. CONCLUSION: Les résultats de cette étude constituent pour le pays une première base de données en population sur la maladie rénale. L'étude doit être complétée par l'identification des cas d'albuminurie persistante dans cette population.

[Management of end-stage kidney failure: a challenge for the countries of sub-Saharan Africa example of mineral and bone disorders in Burkina Faso]. / Prise en charge de l'insuffisance rénale terminale : un challenge pour les pays de l'Afrique subsaharienne Exemple des désordres minéralo-osseux au Burkina Faso.

INTRODUCTION: Meeting treatment targets for dialysis is a seemingly impossible challenge for most countries of sub-Saharan Africa. To assess this problem, we conducted this study of mineral and bone disorders in subjects undergoing hemodialysis at the Ouagadougou hemodialysis unit, the only such unit in Burkina Faso. PATIENTS AND METHODS: This cross-sectional descriptive study was conducted in January 2010. We included patients on hemodialysis for at least three months who had some minimal predialysis laboratory results available. The KDIGO guidelines served as our reference. Dialysis sessions lasted 5 h and took place once every five days. The statistical analysis of the data was performed with PASW statistical software, version 18 for Windows. RESULTS: The study included 32 of the 53 patients in the unit: 19 men and 13 women with a mean age of 43.5 ± 12.7 years. Their mean serum levels were 2.2 ± 0.2 mmol/L for calcium, 1.4 ± 0.5 mmol/L for phosphorus, 934 ± 887.4 pg/mL for intact parathyroid hormone and 193.4 ± 125.7 IU/L for total alkaline phosphatases. No patient reached the target for all three of the first three indicators. Patients with parathyroid hormone ≥ 800 pg/mL (n = 14) had a serum phosphorus (1.6 ± 0.6 vs 1.2 ± 0.4; p = 0.044) and alkaline phosphatases (287.5 ± 100.5 vs 120.2 ± 90; p < 0.001), significantly higher than those whose parathyroid hormone level was < 800 pg/mL. CONCLUSIONS: The bone and mineral status of our hemodialysis patients is worrisome and is due to suboptimal treatment conditions. The risk of deaths is high. Subsidies sufficient to provide adequate care would reduce these problems, which have, we note, an ethical dimension.

[Prevalence of proteinuria in children followed-up for HIV infection at Pediatric University Hospital Charles-de-Gaulle (CHUP-CDG) of Ouagadougou]. / Prévalence de la protéinurie chez les enfants suivis pour infection à VIH au centre hospitalier universitaire pédiatrique Charles-de-Gaulle (CHUP-CDG) de Ouagadougou.

In subjects infected with HIV, proteinuria could represent a marker of HIV associated nephropathy (HIVAN), the most important cause of chronic renal failure in them. To determine the prevalence of proteinuria in children with HIV infection and to improve the screening of renal disease for these children in our country, we conducted a descriptive cross-sectional study over a 3-month period. We included 122 children (0-14 years old) with HIV infection followed at CHUP-CDG. Proteinuria was calculated using the first morning urine sample by dipstick test (significant for a "+" or more). Statistical tests were significant for p < 0.05. The 122 children (121 HIV1 and 1 HIV2) comprised of 64 boys and 58 girls. Eighteen (14.8%) (14 boys and 4 girls) had proteinuria (1 or 2 "+"). The mean age of patients with proteinuria was 10.4 ± 3.3 years. None of the children were hypertensive. All were infected with HIV1. Proteinuria was associated with microscopic hematuria in six cases. The average CD4 count was 21 ± 8% versus 23 ± 10% in 42 patients without proteinuria (p = NS). The mean serum creatinine in patients with proteinuria was 47 ± 29 µmol/l. Three of them had acute renal failure. All patients with proteinuria had antiretroviral treatment (ARV) since 40 ± 24 months versus 36 ± 26 months in 98 patients without proteinuria. No treatment included tenofovir, indinavir, or converting enzyme inhibitor. The prevalence of proteinuria in our sample is lower than that reported by other African writers in untreated subjects. This fact suggests a nephroprotection of ARV in our patients probably treated early and effectively. However, microalbuminuria, a possible early marker of HIVAN, has not been evaluated by our study. Studies of the prevalence of microalbuminuria in children infected with HIVand treated with ARVs in Sub-Saharan African countries should be encouraged. They would help to determine the relevance in these children of research routinely of microalbuminuria and to screen and precociously take care of a possible HIVAN or other chronic glomerulopathy.

[Acute renal failure in Burkina Faso]. / L'insuffisance rénale aiguë au Burkina Faso.

The prognostic of uremic syndrome had been improved by the development of renal replacement therapy. Uremic syndrome remains a dramatic medical concern in African sub-saharan countries. Nephrology practice has been introduced recently in Burkina Faso and epidemiological data on acute renal failure is not available. We conducted this study with the aim to describe the clinical profile of hospitalized patients. One hundred and twenty-one patients (18.4% of all admissions) with acute renal failure (creatinine>240micromol/L, abrupt onset) were included (age: 38.6+/-16.3y; creatinine: 1246.1+/-870.5micromol/L; urea: 40.2+/-18.3micromol/L), 75 men (age: 41.2+/-16.4) and 46 women (age: 34.2+/-15.2y). Acute renal failure was of medical cause in 91 cases, surgical cause in 16 cases and gyneco-obstetrical in 14 cases. Many pathophysiological factors have been identified like volume depletion, infections and obstruction. Acute renal failure was renal in 57 cases (age: 38.2+/-14.6y), prerenal in 43 cases (age: 36.8+/-16.7y) counting acute tubular necrosis in 21 cases, obstructive in 15 cases (age: 50.5+/-15.6y) and unclassified in six cases. Comorbidities have been identified: heart failure (13 cases), hepatocellular failure (eight cases), tumours (four cases) and severe hypertension (13 cases). Dialysis was justified in 84 cases but only accomplished in 14 cases. Hospital length of stay was 20.4+/-14.9 days. Twenty-nine patients died and causes were uraemia in 13 cases, hepatic in three cases, sepsis in 10 cases, malignant tumour in two cases and associated in one case.

Edocardite infectieuse aigue sur catheter chez des hemodialyses: a propos de trois cas au CHUYO de Ougadougou

The authors report three cases of catheter-related acute infective endocarditis (IE) in hemodialysis patients observed at our hospital over a 10-months period. There were two men and women respectively 43; 33 and 40 years old. They suffered from hypertension for many years and end-stage renal failure since a month before hemodialysis. The diagnosis of IE was suspected clinically (non controlled infection and heart failure). Every patient had central venous in two or three locations. Femoral and jugular venous septic thrombophlebitis were related to staphylococcus aureus. The catheters were with drawn; their cultures showed staphylococcus aureus. Hemocultures were sterile. Vegetations and mutilations were found by echocardiography on aortic valve. These three cases are related to acute IE; all patients have died. Catheter-related acute IE prognosis is bad and some investigations (hemocultures; echocardiography) are needed regularly in patients with risk in order to give drugs and to remove catheter

[Characteristics of renal disease in hypertensive morbidities in adults in Burkina Faso]. / Caractéristiques de l'atteinte rénale dans la morbidité hypertensive de l'adulte au Burkina Faso.

In the aim to determine the importance of renal disease in hypertensives (BP > 160/95 mmHg), we conducted a retrospective study in Burkina Faso, a black african country. 342 adults hypertensive (200 men, 142 women, mean age: 50.6 +/- 13.8 years) hospitalized in the departments of Cardiology or Internal medicine from January 1995 to December 1997 were included. Patients were at their first hospital stay in 273 cases (79.8%). When technical conditions were available, assessments were systematically done. Blood pressure was 183.6 +/- 36.4/113.3 +/- 23.1 mmHg. Total morbidity concerned 316 patients (92.4%). Cardiovascular complications (CVC) have been diagnosed in 236 patients (69%) with a mean age of 51.6 +/- 14 y, neurologic complications (NC) in 85 patients (24.9%, mean age: 55.7 +/- 12) and renal disease (RD) in 123 patients (36%; mean age: 44.7 +/- 14.5 y). Mean age of single RD (n: 27, mean age: 39.5 +/- 12.8 y) was significantly lower than no complicated hypertensives (n: 42, mean age: 48.2 +/- 11.6 y) or single CVC (n: 104, mean age: 55 +/- 12.5) or single NC (n: 34, mean age: 55.1 +/- 11.1) or associated comorbidities (n: 135, mean age: 49.1 +/- 14.5). Patients under 40 years of age have had higher 24 hours proteinuria than other patients (1.05 +/- 1.17 g (n: 51) vs 0.45 +/- 0.68 (n: 170), p < 0.01). Chronic renal failure occurred in youngest patients (n: 72, age: 39.7 +/- 13.4 vs 53.7 +/- 12.3; p < 0.01) with a most high prevalence in rural (31.6%) than urban patients (15.8%; p < 0.01). End stage renal failure concerned 49 patients (mean age: 35.9 +/- 12.7). 27 patients died during hospital stay by renal failure in 17 cases (mean age: 37 +/- 11). CVC in 5 cases (mean age: 68.6 +/- 8) and NC in 5 cases (mean age: 60.2 +/- 9.2). Among survivals, 72 patients (28.9%) were of a bad short-term prognosis and 38 had end stage renal failure. In conclusion, our data suggest that renal disease will be common cause of hypertension and also a selective factor for long term survival of hypertensives in a country where renal replacement therapy is not available.

[Epidemiology of severe chronic renal insufficiency in Burkina Faso]. / Epidémiologie de l'insuffisance rénale chronique sévère au Burkina Faso.

We identified 174 cases of chronic severe renal failure (blood creatinine > 650 mumol/l) and/or blood urea > 35 mmol/l) in a retrospective study of patients admitted to hospital between January 1989 and June 1996. Of these patients, 110 were men and 64 were women. The mean age was 36 +/- 15 years. Fifty three patients had a history of hypertension before admission, 3 patients had diabetes and 3 had gout. The most frequent clinical signs were dyspnea (55.2% of all patients), fatigue (78.2%), vomiting (63.2%) and edema (66.1%). The prevalence of hypertension was 64.9%. Glomerulonephritis was found in 42.5% of patients, chronic interstitial nephritis in 16.1%, polycystic kidney disease in 2 cases, congenital renal hypoplasia in 4 cases and unclassified kidney disease in 14.4% of cases. End-stage renal failure was complicated by heart failure in 40.2% of patients, pericarditis in 31.6%, hemorrhage of the gastrointestinal tract in 15% and infections in 22.4%. 47.7% of the patients died following admission.

[Diabetes mellitus at the National Hospital Center of Ouagadougou (Burkina Faso)]. / Diabète sucré au Centre hospitalier national de Ouagadougou (Burkina Faso). Epidémiologie, types et manifestations cliniques.

The study, conducted over 4 years among 400 diabetic patients, reports the epidemiological and clinical aspects of diabetes mellitus at the National Hospital of Ouagadougou, Burkina Faso. Epidemiologically, diabetes mellitus affects men by 64% and women by 36%. 76% are over 40 y. o., whereas only 2.2% are under 20. Clinically, the classification of diabetic patients shows that 10.7% are insulin-dependent and 76.5% non insulin-dependent. No usual tropical diabetes has been found. The calcifications observed in 2.5% of cases were combined with chronic alcoholic pancreatitis. The classic triad (polyuria, polyphagia, polydipsia) led to diagnostic by 41% of the patients, whereas 27.5% have been identified when having complications, and 23% by a systematic check-up. Cardio-vascular risk factors combined with diabetes have been found: obesity (28%), high blood pressure (20%), hyperuricaemia (14%), addiction to smoking (20%). The epidemiological characteristics, as well as the various clinical aspects, mostly complies with the observations of the african authors.

[Complications of diabetes mellitus at the Hospital Center of Ouagadougou]. / Complications du diabète sucré au Centre hospitalier de Ouagadougou.

It is a four year study (1991 January to 1994 December) on four hundred diabetic people in Ouagadougou, aiming to assess the complications observed in these patients. The search of these complications have been systematic during the first consultation and during the follow-up through clinical examination and complementary exams. Most of classic complications have been found and can be split in two groups: 1) acute complications which included: metabolic ones observed on 17.5% of the patients (ketoacidosis 5%, hypoglycemia 11.2% and hyperosmolar coma 1.2%); infectious complications observed on 79% of the patients. The high frequency of these complications testifies of the difficulties of the management, under-information and insufficient education of the patients; 2) degenerative chronic complications including: microangiopathy: retinopathy (15.8%) and nephropathy (24.8%) which was complicated by chronic uremia in 9% cases; macroangiopathy in which: gangrene (7.5%), hypertension (20%), cardiac disease (8.7%), neurologic complications (35%) were the most frequent. These chronic complications accentuate mortality and morbidity linked to diabetes and increase the economical and social cost of this affection in a poor environment.

Morbidite et mortalite dans le service interne du Centre Hospitalier National de Ouagadougou sur 4 ans (Janvier 1990 a Decembre 1993)

Le service de medecine interne de Ouagadougou est un service pluridiscilinaire; de dernier recours; les auteurs ont realise une etude retrospective de janvier 1990 a decembre 1993 afin d'apprecier la mortalite et la morbidite dans le service. 2891 patients ont ete concernes par cette etude. Il s'agissait de sujets jeunes; d'age moyen 36 ans avec 44;94 pour cent de sujets ages de 20 a 39 ans. 61;86 pour cent etant de sexe masculin. Sur le plan de la morbidite; la pathologie observee etait variee avec predominance d'affections neurologiques; infectieuses; nephrologiques; hematologiques et endocrino-metaboliques temoin du caractere pluridisciplinaire du service. Pres de 55 pour cent des affections observees relevaient de la pathologie d'urgence alors que le service n'est pas equipe en consequence. Ceci explique en partie; un taux de mortalite de 25;21 pour cent dont 40;94 pour cent de deces survenant dans les 48 heures suivant l'hospitalisation

Epidemiological profile of hypertensive disease and renal risk factors in black Africa.

OBJECTIVE: To describe the characteristics and renal function of hypertensive patients at their first hospital admission in Sub-Saharan Africa. DESIGN: Retrospective study of all hypertensive patients. SETTING: Department of Cardiology and Internal Medicine of Yalgado Ouedraogo National Hospital in Burkina Faso, a country in Sub-Saharan Africa. PATIENTS: Three hundred and seventeen consecutive hypertensive patients (systolic blood pressure > or = 160 mmHg or diastolic blood pressure > or = 90 mmHg, or both, or patients receiving antihypertensive treatment) referred between 1 November 1988 and 31 October 1990. RESULTS: The hypertensive patients accounted for 36.5% of admissions and included 198 males and 119 females (mean +/- SD age 49 +/- 14 years). Two-thirds of the patients belonged to the poorer socio-economic groups. Hospital admission was necessary because of the symptoms and complications of hypertension: 43% had diastolic blood pressure > 130 mmHg, 73.5% had at least one target organ affected and 38.2% had renal involvement in the form of chronic renal failure or as proteinuria > 1.5 g/24 h. Patients with renal involvement were younger and had blood pressure that responded less well to acute treatment. One-fifth of the patients died during their hospital stay, and most of these had impaired renal function.

[Renal insufficiency in arterial hypertension in black Africa]. / Insuffisance rénale au cours de l'hypertension artérielle en Afrique noire.

OBJECTIVES: The increased risk of renal disease due to high blood pressure observed in Black Americans would suggest ethnic factors are involved. We examined the clinical features of renal disease in patients hospitalized in Ouagadougou, Burkina Faso for high blood pressure to determine the risk factors in this black population. METHODS: From November 1988 to October 1990, 317 patients (mean age 49 +/- 14 years, 62.5% males) under treatment for high blood pressure or with a diastolic pressure > 90 mmHg without antihypertensive therapy were examined at their initial hospitalization. The patients were divided into socio-economic groups according to their professional occupation and level of education. Criteria of renal disease, including raised serum creatinine, proteinuria and blood urea nitrogen, together with factors related to hypertension, including obesity, diabetes mellitus, hypertensive retinopathy, heart failure, coronary artery disease, cerebral vascular events and hypertensive encephalopathy were analyzed. RESULTS: Severe hypertension, diastolic pressure > 130 mm Hg was observed in 43% of the patients. There was a significant inverse correlation between age and diastolic pressure (r = 0.23, p < 0.0001). Response to initial anti-hypertensive treatment was good in 88% and proportional to severity. Hospital mortality was 18.6% (59 patients) including 39 cases during the first two days. Mortality was not correlated with blood pressure, age, sex or socio-economic conditions. Renal disease was observed in 121 patients and chronic renal failure in 117 (44%). Effect of hypertension on at least one target organ was observed in 73.2% of the patients and on at least three target organs in 38.2%. Subjects with renal disease were younger (p < 0.02) and responded less well to treatment than those without renal disease. CONCLUSIONS: These clinical observations confirm the high prevalence of renal failure and the gravity of high blood pressure in Black Africans. In Burkina Faso, hospitalization for high blood pressure often leads to the discovery of terminal renal failure.

Symptomes; etiologie et evolution de 47 cas de fibrillation auriculaire permanente

Etude retrospective realisee au Hospitalier National de Ouagadougou portant sur 47 fibrillations auriculaires permanentes (sur 847 maladies cardiovasculaires) a montre une prevalence de 5;5 pour cent. Il y avait 26 hommes pour 21 femmes. On avait constate une insuffisance cardiaque presente dans 93;6 pour cent des cas. Un accident vasculaire cerebral etait survenu chez 7 patients. Une tachythmie existait dans 22 cas. les etiologies de ces fibrillations auriculaires etaient dominees par les valvulopathies; les cardiopathies hypertensives et les myocardiopathies primitives constituant ainsi 85 pour cent des cas. Le traitement reposait dans tous les cas sur les digitaliques; associes a l'amiodarone 15 fois. Le ralentissement de la frequence cardiaque etant constant; la reduction de la fibrillation auriculaire a ete rerement obtenue