[W135 meningococcus meningitis: study of 148 cases observed in 2002 and 2003 at the National Teaching Hospital of Ouagadougou, Burkina Faso]. / Méningites à méningocoque du sérogroupe W135: étude de 148 cas observes en 2002 et en 2003 au CHU-YO de Ouagadougou, Burkina Faso.

The purpose of this report is to describe the bacteriological features, clinical signs and therapeutic outcome of 148 cases of W135 meningococcus meningitis observed during meningitis outbreaks in Burkina Faso in 2002 and 2003. Diagnosis was based on microbiological study of cerebrospinal fluid. Cases of meningococcus meningitis were recorded throughout the study period with the peak number of cases occurring around the 14th week. There was a slight male predominance (56.1%) and young patients between one and 15 years accounted for 81.7% of cases. The mean interval between onset of symptoms and hospitalization was 2.6 days and the mean duration of hospitalization was 5.5 days. The most common clinical signs were fever (98.6%), stiff neck (90.5%),Brudzinski's sign (85.1%),Kernig's sign (66.2%), altered consciousness (41.9%), vomiting (36.5%) and headaches (34.5%). In most cases treatment with a singie dose of chiorazuphenicol in oil was curative. Overall mortality was 15.5% idth no correlation with sex or age. Seventeen of the 23 deaths occurred within 24 hours after their admission to the hospital. The other six deaths occurred on the second day after admission inS cases and fifth day in one case. Convulsions, shock and altered consciousness were consistent poor prognostic signs. A correlation was found between mortality and interval for hospitalization with better survival in patients receiving prompt treatment. Study of the susceptibility of 102 samples showed that W135 meningococcus was sensitive to penicillin G, ampicillin,ceftriaxone and chloramphenicol but resistant to sulfamides (cotrimoxazole). Bacterial meningitis is an Important factor of morbidity and mortality worldwide. Our findings indicate that the bacteriological, clinical and epidemiological characteristics of W135 meningococcus is do not differ greatly from those of meningococcus A. Since W135 meningitis is susceptible to antibiotics used to cure meningitis, campaigns to promote early detection and treatment must be continued.

The impact of five years of annual ivermectin treatment on skin microfilarial loads in the onchocerciasis focus of Asubende, Ghana.

Following the registration of ivermectin (Mectizan) for human use in the treatment of onchocerciasis, in 1987 the Onchocerciasis Control Programme in West Africa (OCP) begun a series of trials in order to determine the safety of the drug when used on a large scale and its potential for morbidity control. This paper reports the changes in skin microfilarial loads during the first 5 years of annual treatment in the holoendemic focus of Asubende in Ghana, which was the largest trial area and which also had the longest series of follow-up surveys. The general observed pattern was a marked reduction of microfilarial loads shortly after each treatment followed by a steady repopulation of the skin until a subsequent treatment round. The overall reduction of microfilarial loads observed between the base line survey and one year after the last treatment was 90% for the total population examined and over 93% for a cohort which received the drug at all 5 treatment rounds. In contrast, there was only a very gradual decrease in the prevalence of infection in the population after subsequent treatments. The study further emphasizes that even a single treatment with ivermectin has a significant medium-term impact on microfilarial loads. Microfilarial counts barely increased after 14-16 months of treatment and stabilized around 55% of pre-treatment counts 2-4 years after a single treatment.

[Assessment of management of patients with sexually transmitted infections in Burkina Faso]. / Evaluation de la prise en charge des cas d'infections sexuellement transmissibles au Burkina Faso.

BACKGROUND: In order to offer wide and efficient health care to patients, Burkina Faso has instituted the syndromic approach to sexually transmitted infections (STIs) since 1996. The current assessment has been carried out in view of measuring the degree of application of this approach in the management of the STIs in the health centres of the country. The assessment should specifically allow to: i) analyse the quality of the clinical health care of the patients coming in the health services with STI symptoms;ii) to determine the proportions of those patients to whom the care-provider give basic counselling on the use of condoms and the information of their sexual partners. METHODS: The study has been carried out from the 1(st) to the 28(th) July 2001 in all the 53 health districts and the two national hospitals of Burkina Faso. A one-day cross-section survey per health centres was used. The data were collected from a direct observation of the provider-patient relationship; and the handling of the anamnesis, the physical examination, the diagnosis and the prescriptions were analysed. RESULTS: During the survey, 358 patients had been consulted in the health centres. Only 4% of the patients who came in the health centres with STI or for STI consultation had been assessed and treated in accordance with national algorithm or WHO recommendations (Prevention indicator n degrees 6=4%); and 13% of those who came to consult with or for STI in the health centres had received basic counselling on condoms and the notification to their sexual partners (Prevention indicator n degrees 7=13%). CONCLUSION: These prevention indicators remain of a very weak level, showing therefore a poor quality of the management of STIs. Meanwhile, they show the areas of deficiencies on which a supervision and a recycling of the providers might bear.

[Clinical and parasitological aspects of severe malaria in adults in an urban area of Bobo-Dioulasso (Burkina Faso)]. / Aspects cliniques et parasitologiques du paludisme grave de l'adulte en milieu urbain de Bobo-Dioulasso (Burkina Faso).

From March to December 2000, we carried out a prospective study in the emergency and the internal medicine wards of Bobo-Dioulasso central hospital (Burkina Faso). Among 280 adults with clinical diagnosis of severe malaria, only 60 were confirmed to have severe forms of malaria after the laboratory investigations. Most of these patients (49 cases) were living in the city. The average age was 29.2 years +/- 13.1. At hospital admission, the average temperature was 39.1 degrees C +/- 1 and signs of severe malaria were dominated by impaired consciousness (43 cases), multiple convulsions (6 cases) and severe anaemia (6 cases). Two of these signs were associated in the third of patients. The average parasite density at admission was 11,660 parasites per microliter. 85% of patients hospitalized recovered, 8% died and 7% escaped. The control thick smear at day 3 showed that 23% of patients were still positive. At day 7 none of them was positive. Malaria in adults in urban area is a phenomenon which needs to be assessed and followed in African big towns.

[Perihepatitis and HIV/AIDS infection. Apropos of 13 cases at the National Hospital of Bobo-Dioulasso]. / Périhépatite et infection par le VIH/sida. A propos de 13 cas à l'Hôpital national de Bobo-Dioulasso.

Perihepatitis or Fitz-Hugh syndrome, peritonitis located in the right hypochondriasis (RH), is a relatively rare affectation. However, the HIV-AIDS pandemic has brought about the emergence and re-emergence of disease-states either uncommon or formerly on the decline as well as the appearance of opportunistic illness. We report the results of a retrospective study conducted in the National Hospital of Bobo-Dioulasso (Burkina-Faso) between 1 June 1997 and 31 December 1999 in an effort to contribute to a wider vision of diseases associated with HIV-AIDS. We based our study on 130 laparoscopies carried out for unexplained pain linked to RH (with or without fever), as well as abdominal-pelvian or diffuse abdominal pain. Thirteen cases (11 women, 2 men) of perihepatitis were diagnosed. The mean age for women and men was respectively 31.4 and 39.5. HIV serology was systematically carried out for all patients and, in case of perihepatitis, cultures were taken. All patients were infected with HIV and some presented signs of AIDS according to the WHO classification. In clinical terms, a shalking pain for RH was noted for 5 patients, abdominal sensitivity in 8 cases as well as gynaecological anomalies: cul-de-sac moving pain (4 cases), leuchorrea (3 cases) and mucosic vulvovaginitis (1 case). Paraclinical tests revealed a slight hepatic cytolysis for only 3 patients (1.5 N). 6 patients tested positive for Chlamydia trachomatis; the 7 others could not be tested, but this aetiology was assumed for evaluating the efficacy of the treatment under study. The high frequency of perihepatitis in these patients, all of whom were suffering from HIV-AIDS, and its presence in the 2 male cases, suggest that immunodepression is conducive to the appearance of this disease.

[Toxoplasma serology in HIV infected patients and suspected cerebral toxoplasmosis at the Central Hospital of Bobo-Dioulasso (Burkina Faso)]. / Sérologie toxoplasmique chez les patients infectés par le VIH et suspects de toxoplasmose cérébrale au Centre hospitalier de Bobo-Dioulasso (Burkina Faso).

A study was conducted in the Internal Medicine unit of Bobo-Dioulasso Hospital. Of the 1828 HIV positive patients admitted in medical wards, 268 presented neurological symptoms. 25.4% had positive Toxoplasma gondii serology. Encephalitis was associated with 12.5% of this latter group and intracranial hypertension with focal neurological defects affected a further 47.5% of them. Presumptive treatment of toxoplasmosis led to significant clinical improvement in 60% of cases. Toxoplasma gondii serology should be part of the standard check-up for every HIV-infected patient, and toxoplasmosis chemoprophylaxis should be given to those with positive toxoplasma serology. Presumptive therapy of toxoplasmosis should be started for all HIV positive patients with focal neurological manifestations in the absence of a cerebral scanner.

[Compared characteristics of peripheral facial paralysis according to HIV status in Bobo-Dioulasso (Burkina Faso)]. / Caractéristiques comparées des paralysies faciales périphériques selon le statut VIH à Bobo-Dioulasso (Burkina Faso).

Facial paralysis is a well-described manifestation of HIV infection. We report 27 cases of peripheral facial paralysis observed at Bobo-Dioulasso Hospital in a prospective study over a period of 9 months: 55 of the cases were HIV positive and 12/15 (80%) were in the 20-39 age group. Nine out of 11 females and 6 out of 16 males were seropositive. 13 of the cases were at stage B of CDC classification and 2 at stage C. ESR was elevated in all the HIV patients. CSF examination revealed lymphocytic pleiocytosis, elevated proteins and a positive HIV serology. CD4 counts were obtained in 8 cases and were under 400/mm3 in 4 cases. The clinical presentation was more severe in HIV seropositives with a longer duration of symptoms. Isolated peripheral facial paralysis associated with an elevated ESR in young adults suggest HIV infection and should lead to HIV counselling and testing.

[Peritoneal tuberculosis and HIV infection. Reflection apropos of 22 cases at the National Hospital of Bobo Dioulasso]. / Tuberculose péritonéale et infection par le VIH. Réflexion à propos de 22 cas à l'Hôpital national de Bobo Dioulasso.

Peritonitis tuberculosis is still a frequently encountered pathology in our hospital. Since the AIDS pandemic, cases of peritonitis tuberculosis present increasingly atypical characteristics, largely diverging from classical descriptions. The authors report on 22 cases of peritonitis tuberculosis associated with HIV infection. The study was carried out from June 1997 to December 1999 in the National Hospital Centre Souro SANOU of the Bobo Dioulasso internal office. It concerned 10 women and 12 men of a mean age of 37.9 years. The sex-ratio was 1.2 in favour of men. Diagnosis was established by laparoscopy. Peritonitis tuberculosis associated with HIV accounted for 78.5% of peritonitis tuberculosis cases. The clinical picture was dominated by isolated ascite (100%) associated with an oscillating high fever in 68.2% of cases. Negative results for IDR seemed to reflect poor prognosis. Response to treatment was slow but acceptable. The general prognosis was poor with a mortality rate of 18%.

[Cryptococcal meningitis in HIV-infected patients at Bobo-Dioulasso hospital (Burkina Faso)]. / La cryptococcose neuroméningée au cours de l'infection par le VIH au Centre hospitalier de Bobo-Dioulasso (Burkina Faso).

Cryptococcus neoformans is an important fungal pathogen in immunocompromised patients. A retrospective study was conducted to investigate the occurrence of Cryptococcus neoformans infection in patients admitted to Bobo-Dioulasso Hospital over a 3 year-period. During this period, cryptococcal meningo-encephalitis was diagnosed in 36 individuals. The median age of the patients under study was 34.25 years. There was a male preponderance (24 males/12 females) in our report. Typical presentations were persistent headaches (27 cases/36), neck stiffness (16/36), altered consciousness (14/36), fever (12/36) and convulsions (9/36). Oral candidiasis coexisted with cryptococcal meningitis in 7 patients. HIV serology was positive in all patients. At diagnosis, lymphocytes counts were < 1500/mm3 in 66.66% patients. CSF examination with India ink helped to the diagnosis of cryptococcosis in all cases. Cryptococcus neoformans was associated with Streptococcus pneumoniae in 4 patients. 15/36 patients died within 1 to 29 days after admission. High mortality was related to delayed diagnosis. Cryptococcal meningitis highly contributes to mortality in HIV-infected patients in Burkina Faso and it may occur in patients not severely immunocompromised patients. A need exists to improve strategies for clinical management of AIDS patients in poor African countries.

[Neurologic manifestations associated with HIV infections at the Bobo-Dioulasso Hospital Center (Burkina Faso)]. / Manifestations neurologiques associées à l'infection par le VIH au Centre hospitalier de Bobo-Dioulasso (Burkina Faso).

Neurological manifestations of HIV infection are frequent and diverse. Diagnosis is often difficult due to geographical factors. 686 of the 3409 patients admitted to the Internal Medicine ward of Bobo-Dioulasso in 1995-1996 were HIV seropositive. This represents a prevalence of 20.1%. The sociodemographic and clinical characteristics of 101 patients with neurological problems during the study period are reported in this paper. This case series represents 14% of the HIV-positive admissions. The mean age was 35.7 years and 43% of the cases were aged 30 to 40 years. Sex-ratio was 1.6 male for 1 female. Focal deficits were observed in 36 of cases. Peripheral neuropathy (37%), meningitis or meningoencephalitis (20%), fitting (8%) and myelitis (8%) were the other clinical presentations. The etiology of the focal deficits was not ascertained because of the lack of tomodensitometry, specific serology and necropsy. Any neurological manifestation in a HIV seropositive patient should prompt investigations in order to diagnose those infections which can be treated, especially Toxoplasma gondii abscess and Cryptococcus neoformans meningitis.

[Measles and pregnancy. Apropos of 16 cases in Burkina Faso]. / Rougeole et grossesse. A propos de 16 cas, au Burkina Faso.

We report an epidemic of 16 cases of measles during pregnancy. The risk factors for such an association and the materno-fetal outcomes are presented. The mean age of the patients was 20.6 years, with a mean gravidity and parity of 2.1 and 1.1 respectively. The mean clinical features were: conjunctivitis, hyperthermia and cutaneous rash. Nine maternal complications occurred: 6 laryngitis and 3 pneumopathies. All patients were HIV negative. The outcomes of the pregnancy were the following: 2 abortions, 3 stillbirths, 1 preterm delivery and 2 full term births. Eight patients with ongoing pregnancies were lost to follow-up after their discharge from the hospital. We conclude on the need for a systematic prevention in exposed pregnant women by immunotherapy and in children by immunization.

[Apropos of a case of rabies occurring despite vaccination after exposure]. / A propos d'un cas de rage survenu malgré une vaccination après exposition.

Rabies is endemic in Sub-Saharan Africa. Control is based on vaccination of subjects at high-risk for exposure and prompt post-exposure treatment. However the severity of some animal bites and early mismanagement can lead to development of rabies despite post-exposure treatment. This danger is illustrated by the case described herein involving a 35-year-old man who was bitten by a rabid dog and treated with 5 doses of antirabies vaccine. The wound, which consisted of two deep punctures on the forearm, was promptly washed with water and disinfected. Despite this treatment, characteristic clinical manifestations of rabies appeared one month after exposure and the patient died 48 hours later. This case raises the question of the causes for failure of the preventive recommendations proposed by the WHO for category III animal bites. In our case, two possible causes of failure and subsequent lethal outcome are that serotherapy was not associated and the incubation period was short. Other possible causes of rabies after post-exposure therapy are discussed with reference to the literature.

[Severe malaria and HIV in adult patients in Bobo-Dioulasso, Burkina Faso]. / Paludisme grave et infection à VIH chez l'adulte a Bobo-Dioulasso, Burkina Faso.

The purpose of this prospective study conducted from March to December 2000 in the Internal Medicine Department of the Sanou Souro University Hospital in Bobo-Dioulasso, Burkina Faso was to evaluate the epidemiological, clinical, biological and prognostic features of severe malaria in adult patients according to their HIV status. During the study period HIV testing was performed in 37 of the 72 adults with confirmed severe malaria. Findings were positive in 12 cases and negative in 25. The mean age of the 12 seropositive patients with severe malaria was 32.4 +/- 2.8 years and most (50%) had used self-prescribed antimalarial treatment. The most common reasons for seeking medical care were fever, headache and deterioration of general health. The main manifestations of severe malaria were coma (n=4), generalized seizure (n=4) and circulatory collapse (n=4). Six patients (50%) presented two severe manifestations. Mean parasitemia at the time of admission was 4066 parasites/microl for seropositive subjects versus 8563 parasites/microl for seronegative subjects. Outcome of malaria included 4 deaths and 8 recoveries in the seropositive group versus 2 deaths and 23 recoveries in the seronegative group. Comparison with the group of 25 seronegative patients presenting severe malaria demonstrated no significant difference in mean age (p=0.96), self-prescribed antimalarial treatment (p=0.50), parasitemia upon admission (p=0.28), or mortality (p=0.07). However co-infected patients were found to have a higher incidence of anemia (P=0.01) and never presented certain manifestations of severe malaria. Further studies of co-infection by HIV infection and malaria (especially severe malaria) is needed given the high human and economic impact of these two diseases in sub-Saharan Africa.

[AIDS-related cryptococcal meningitis at the Bobo-Dioulasso Hospital Center: five case reports]. / La cryptococcose neuro-méningée au cours du SIDA au Centre Hospitalier de Bobo- Dioulasso: à propos de cinq cas.

The authors report five cases of Cryptococcus neoformans meningitis in HIV-positive patients hospitalized in the Souro Sanou National Hospital Center of Bobo-Dioulasso (Burkina Faso). There were 3 men and 2 women with a mean age of 36 years (range: 29 to 47 years). Presenting symptoms were persistent headache and/or mental confusion and neurosensory defects. Cerebrospinal fluid was clear with less than 20 lymphocytes/mm3. Albumin concentration greater than 0.50 g/l was observed in only one case. India ink smear and culture demonstrated strains of Cryptococcus neoformans sensitive to amphotericin B in all five cases, flucytosin in 3 cases, and ketoconazole in two cases. Four patients died within 15 to 32 days after admission (mean 22.5 days). Delayed diagnosis and inconsistent availability of systemic antifungal drugs are major limiting factors in the management of Cryptococcus neoformans meningitis in Burkina Faso.

[Control of onchocerciasis vectors in West Africa: description of the logistics adapted for a large-scale public health program]. / La lutte contre les vecteurs de l'onchocercose en Afrique de l'Ouest: description d'une logistique adaptée a un programme de santé publique de grande envergure.

The Onchocerciasis Control Programme (OCP) in West Africa, launched in 1974, includes 11 participating countries and covers more than one million square kilometres. The aim of the OCP is to control blinding onchocerciasis (river blindness) which is caused by the savannah strain of Onchocerca volvulus transmitted by the Simulium damnosum complex. There is no effective macrofilaricide, so vector control to prevent the transmission of the parasite remains the method of choice, despite the availability of ivermectin, a drug which controls ocular morbidity. The potential value of vector control has been demonstrated by the original programme: 14 years activity has eliminated the disease as a public health problem in the areas included. This strategy requires adapted logistical support involving (i) widespread insecticide coverage (27,000 km of river are treated by the OCP during the rainy season), (ii) frequent (weekly) application of larvicide and (iii) prolonged intervention due to the life-span of the worm in the human reservoir, estimated to be approximately 14 years. We describe the vector control operations and their organisation 20 years after the initiation of the OCP. The OCP can be divided into 5 areas of logistic activity. The first covers activities involving insecticide and fuel management for the OCP as a whole: assessment of the requirements for the following year, ordering from insecticide and petrol suppliers, stocking fuel and insecticide at the depots covering the area. The second activity is the treatment of rivers with insecticide. This includes treating the ground with larvicide, the aerial operations run by an independent company supplying 12 helicopters on contract to the OCP, and use of satellite beacons for retransmitting of hydrological data. The third activity is monitoring the impact of larvicides on both the target (adult and larval S. damnosum) and on other fauna (fish, crustaceans and other insects). The fourth activity is field data collection and its processing. This involves a data transmission network to facilitate stock management insecticide application and entomological and hydrological surveillance using computer systems. The fifth activity is the coordination of vector control operations, technical and administrative staff and estimations of the funds available to the Vector Control Unit. The logistic aspects of other large-scale-insect-control programmes world-wide are considered, and the possibility of using the OCP as a model for such programmes (both public health and agricultural) is assessed.

[Acute pure lobar pneumonia in the child (P.F.L.A.). Apropos of 42 cases collected in the infectious disease department of Dakar U.H.C]. / Les pneumonies franches lobaires aiguës de l'enfant (P.F.L.A.). A propos de 42 cas colligés dans le service des maladies infectieuses du C.H.U. de Dakar.

Systematic, non-suppurate, acute pneumopathies (PANSS) or acute, clear-cut, lobary pneumonia (PFLA) constitute a pathology in babies aged 0-1 years. The clinic found 83.3% of these little patients to be feverish, dyspneic and suffering from a dry cough. 85% of the cases presented the alveolary filling syndrome with acric bronchogramme. After a 3 day apyrexy period on penicillin, the evolution was favourable in 83.4% of the cases.

[Noma and HIV infection: apropos of a case at the National Hospital Center in Bobo-Dioulasso (Burkina Faso)]. / Noma et infection à VIH: à propos d'une observation au Centre Hospitalier National de Bobo-Dioulasso (Burkina Faso).

Noma (Cancrum oris) is a gangrenous stomatitis arising from a periodontal infection and leading to severe soft tissue and bone destruction. The pathology involves numerous factors including local thrombosis, vascularitis, necrotizing gingivitis, immunodeficiency, gram negative and anaerobic infection. It is usually a disease of infants and malnourished children in tropical areas often occurring after a debilitating disease like measles. Recently, cases have been reported in adults especially elderly patients or during immunodeficiency states. Reconstructive surgery is often necessary to deal with destruction and sequel but is rarely accessible in developing countries. We report one case of noma (cancrum oris) in an HIV seropositive patient at the National Hospital in Bobo-Dioulasso. The noma was inaugural of AIDS in a 40 years old labourer coming back from Ivory Coast and no major opportunistic infection was associated. The course was fulminant leading to extensive facial gangrene with recurrent bacterial infections. The disease was fatal in this depressive, malnourished and diarrhoeic patient despite local surgical treatment, prolonged antibiotherapy and supportive care. Pathogenic mechanisms, management and preventive issues are discussed.

[Noma in children in a hospital environment in Bobo-Dioulasso: epidemiologic, clinical and management aspects]. / Le noma de l'enfant en milieu hospitalier de Bobo-Dioulasso: aspects épidemiologiques, cliniques et prise en charge.

A retrospective study covering ten years (1987-1996) was conducted to assess the epidemiology, clinical features and management of cancrum oris (noma) in children from Burkina Faso. Fifty nine (59) children were admitted with cancrum oris at the paediatrics and maxillo-facial surgery units of Bobo-Dioulasso, the second town of Burkina Faso. The hospital prevalence of noma is 1.5/1000. 81% of the cases were in the 1 to 5 years age group and 58% were females. Predisposing factors include poverty, lack of immunization, malnutrition, bad oral hygiene, measles and parasitic diseases. The cheek was involved in 31% of the cases. Cure was obtained in 80% of patients after medical and surgical treatment. However, many sequels were observed. Post operative outcome is complicated by the children's growth and often results in retractions, recurrence of ulcers or constriction. Psychological and social problems are associated. Management is difficult in our setting because of the lack of information, cost of the treatment and the absence of well-equipped plastic surgery units.