343 research outputs found

    A retrospective study of 50 cases of lower limb soft tissue infection and its different modalities of presentation and its management

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    Background: Soft tissue infections are common in everyday practice. They show great variations in their severity. Skin and soft tissue infections are usually preceded by minor traumatic events. Among them soft tissue bacterial infections of lower limbs are more common. Patients having diabetes makes the scenario even worst. Diagnosis, intervention and treatment of these infections are very important. This study aims at understanding the pathology involved for lower limb soft tissue infections, spectrum of organisms and different treatment modalities in various age group and gender.Methods: 50 cases of lower limb soft tissue infections were included in this study. Detailed history, clinical examination, investigations, pre-operative preparation, intraoperative details and post-operative management were included.Results: 94% patients were having history of trauma.88% patients were having history of diabetes. Staphylococcus aureus was the most common (43%) organism cultured from swabs followed by pseudomonas (36%) out of total cases. Minimum stay in hospital was of 4 days to a maximum of 34 days. Most of the patients were managed with regular dressing and debridement.Conclusions: The patients sought treatment only when they had extensive lesions which affect their daily living. Health education regarding foot care forms an integral part of surgical management of lower limb soft tissue infections. Readmissions are mainly due to inadequate local control or fluctuating blood sugar levels and improper foot care due to illiteracy, poverty, ignorance and lack of adequate primary care facilities

    CARIOCA: a fast binary front-end implemented in 0.25Ό0.25\mu CMOS using a Novel current-mode technique for the LHCb muon detector

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    The CARIOCA front-end is an amplifier discriminator chip, using 0.25mm CMOS technology, developed with a very fast and low noise preamplifier. This prototype was designed to have input impedance below 10W. Measurements showed a peaking time of 14ns and noise of 450e- at zero input capacitance, with a noise slope of 37.4 e-/pF. The sensitivity of 8mV/fC remains almost unchanged up to a detector capacitance of 120pF

    Direct measurement of the pion valence quark momentum distribution, the pion light-cone wave function squared

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    We present the first direct measurements of the pion valence quark momentum distribution which is related to the square of the pion light-cone wave function. The measurements were carried out using data on diffractive dissociation of 500 GeV/c π−\pi^- into di-jets from a platinum target at Fermilab experiment E791. The results show that the ∣qqˉ>|q\bar {q}> light-cone asymptotic wave function, which was developed using perturbative QCD methods, describes the data well for Q2∌10 (GeV/c)2Q^2 \sim 10 ~{\rm (GeV/c)^2} or more. We also measured the transverse momentum distribution of the diffractive di-jets.Comment: 13 pages, 4 figure

    Liana communities exhibit different species composition, diversity and community structure across forest types in the Congo Basin

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    Lianas are poorly characterized for central African forests. We quantify variation in liana composition, diversity and community structure in different forest types in the Yangambi Man and Biosphere Reserve, Democratic Republic of Congo. These attributes of liana assemblages were examined in 12 1-ha plots, randomly demarcated within regrowth forest, old growth monodominant forest, old growth mixed forest and old growth edge forest. Using a combination of multivariate and univariate community analyses, we visualize the patterns of these liana assemblage attributes and/or test for their significant differences across forest types. The combined 12 1-ha area contains 2,638 lianas (>= 2 cm diameter) representing 105 species, 49 genera and 22 families. Liana species composition differed significantly across forest types. Taxonomic diversity was higher in old growth mixed forests compared to old growth monodominant and regrowth forests. Trait diversity was higher than expected in the regrowth forest as opposed to the rest of forest types. Similarly, the regrowth forest differed from the rest of forest types in the pattern of liana species ecological traits and diameter frequency distribution. The regrowth forest was also less densely populated in lianas and had lower liana total basal area than the rest of forest types. We speculate that the mechanism of liana competitive exclusion by dominant tree species is mainly responsible for the lower liana species diversity in monodominant compared to mixed forests. We attribute variation in liana community structure between regrowth and old growth forests mostly to short development time of size hierarchies

    Complications associated with transobturator sling procedures: analysis of 233 consecutive cases with a 27 months follow-up

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    <p>Abstract</p> <p>Backround</p> <p>The transobturator tape procedure (TOT) is an effective surgical treatment of female stress urinary incontinence. However data concerning safety are rare, follow-up is often less than two years, and complications are probably underreported. The aim of this study was to describe early and late complications associated with TOT procedures and identify risk factors for erosions.</p> <p>Methods</p> <p>It was a 27 months follow-up of a cohort of 233 women who underwent TOT with three different types of slings (Aris<sup>Âź</sup>, Obtape<sup>Âź</sup>, TVT-O<sup>Âź</sup>). Follow-up information was available for 225 (96.6%) women.</p> <p>Results</p> <p>There were few per operative complications. Forty-eight women (21.3%) reported late complications including <it>de novo </it>or worsening of preexisting urgencies (10.2%), perineal pain (2.2%), <it>de novo </it>dyspareunia (9%), and vaginal erosion (7.6%). The risk of erosion significantly differed between the three types of slings and was 4%, 17% and 0% for Aris<sup>Âź</sup>, Obtape<sup>Âź </sup>and TVT-O<sup>Âź </sup>respectively (P = 0.001). The overall proportion of women satisfied by the procedure was 72.1%. The percentage of women satisfied was significantly lower in women who experienced erosion (29.4%) compared to women who did not (78.4%) (RR 0.14, 95% CI 0.05-0.38, P < 0.001).</p> <p>Conclusion</p> <p>Late post operative complications are relatively frequent after TOT and can impair patient's satisfaction. Women should be informed of these potential complications preoperatively and require careful follow-up after the procedure. Choice of the safest sling material is crucial as it is a risk factor for erosion.</p
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