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      Avaliação da influência da infecção bacteriana secundária na evolução da leishmaniose cutânea em Corte de Pedra, Bahia Translated title: Evaluation of the secondary bacterial infection's influence on the evolution of cutaneous leishmaniasis in Corte de Pedra, Bahia

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          Abstract

          Foram avaliados 84 pacientes leishmanióticos com o objetivo de verificar a prevalência de infecção bacteriana secundária das úlceras cutâneas e de estudar sua relação com a cicatrização das lesões. A infecção secundária foi diagnosticada mediante cultura bacteriana aeróbica de amostra de tecido da lesão. Todos os pacientes receberam tratamento antimonial durante 20 dias e fizeram lavagem da úlcera com água e sabão comum. A casuística foi composta principalmente de adolescentes e de adultos dedicados à lavoura, apresentando lesão única. Em 47,6%, as úlceras estudadas estavam localizadas nas pernas e nos pés. Verificou-se infecção secundária em 45/83 (54,2%), sendo mais freqüente nas lesões localizadas abaixo dos joelhos. O Staphylococcus aureus predominou (88,9%). A reepitelização completa das úlceras, avaliada em 79 pacientes um mês após o fim do tratamento, não foi influenciada pela infecção secundária.

          Translated abstract

          In order to study the prevalence of secondary bacterial infection in ulcerated lesions and its relationship to the healing process, 84 leishmaniotic patients were evaluated. Diagnosis of the secondary infection was made by bacterial aerobic culture of peripheral tissue specimen of the ulcer. All patients received antimonial therapy during 20 days and washed their ulcers with common soap. Cases were composed mainly of adolescent and adult farmer patients with single lesions. The evaluated ulcers were encountered on legs and feet in 47.6%. Secondary bacterial infection was found in 45/83 (54.2%), and was more frequent in lesions located below the knee. Staphylococcus aureus predominated (89%). The ulcers' healing process, evaluated in 79 patients one month after finishing treatment, was not influenced by the secondary bacterial infection.

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          Most cited references19

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          Mucosal leishmaniasis ("espundia" Escomel, 1911).

          S. Marsden (1985)
          One of the more serious clinical forms of leishmaniasis occurs in espundia when the mucosae of the upper respiratory passages are inflamed. This complication is a metastasis from a skin lesion caused by Leishmania braziliensis braziliensis (Lbb) although cases have been described associated with other leishmanial species. Epidemiological data suggest that a detectable mucosal metastasis occurs in fewer than 5% of patients infected with Lbb in our study area. The determinants of this complication are still largely obscure. The granuloma usually commences on the nasal septum. In about two-thirds of our patients the lesion remained restricted to the nose. In the rest the pharynx, palate, larynx and lips were involved, in this order. It is often difficult to isolate the parasite and for routine diagnosis the leishmanin skin reaction and serological tests are helpful. Although a serious condition, with possible mutilation and even death as subsequent complications, treatment is still mainly with pentavalent antimonials, introduced 40 years ago. These are most unsatisfactory for field use, being given parenterally and relatively toxic. In mucosal leishmaniasis, if sufficient antimony can be administered in a regular daily dose, the relapse rate is small (3 of 42 patients followed for a mean of 5 years). Also, antimony treatment of the initial skin ulcer due to Lbb followed for a mean of 4 years of 83 patients resulted in subsequent mucosal metastasis in only 2. Since espundia is relatively rare, specific treatment targeted to this specific problem is the efficient short term solution. At present there is no satisfactory alternative drug to those in current use.
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            Investigation into the microbial flora of healing and non-healing decubitus ulcers.

            Seventy-four pressure lesions in fifty-three geriatric patients were observed at weekly intervals to determine the bacterial flora and the healing index of each lesion, expressed as initial area of lesion (cm2) - final area of lesion (cm2) divided by time in days. The micro-organisms which caused infection included Staphylococcus aureus, Proteus mirabilis, Pseudomonas aeruginosa, Bacteroides fragilis and Bacteroides asaccharolyticus. Many lesions contained a mixed flora. P mirabilis and Ps aeruginosa were associated with necrotic (p less than 0.005) and enlarging (p less than 5 x 10(-7)) lesions. Bacteroides spp were associated with necrotic lesions (p less than 0.05). The presence of S aureus in a lesion was not associated with any particular trend in healing index. The implications of the microbiological findings are discussed.
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              Cutaneous leishmaniasis in Guatemala: comparison of diagnostic methods

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rsbmt
                Revista da Sociedade Brasileira de Medicina Tropical
                Rev. Soc. Bras. Med. Trop.
                Sociedade Brasileira de Medicina Tropical - SBMT (Uberaba )
                1678-9849
                June 2001
                : 34
                : 3
                : 233-237
                Affiliations
                [1 ] Universidade de Brasília Brazil
                [2 ] Universidade de Brasília Brazil
                [3 ] Laboratório Central (LACEN) Brasil
                Article
                S0037-86822001000300001
                10.1590/S0037-86822001000300001
                11460207
                967782fb-7dbe-4d87-965e-2dde58d3aa5a

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0037-8682&lng=en
                Categories
                TROPICAL MEDICINE

                Infectious disease & Microbiology
                Tegumentary leishmaniasis,Infection,Bacteria,Staphylococcus aureus,Leishmaniose tegumentar,Infecção,Bactérias,Staphilococcus aureus

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