25 research outputs found

    Sex difference and intra-operative tidal volume: Insights from the LAS VEGAS study

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    BACKGROUND: One key element of lung-protective ventilation is the use of a low tidal volume (VT). A sex difference in use of low tidal volume ventilation (LTVV) has been described in critically ill ICU patients.OBJECTIVES: The aim of this study was to determine whether a sex difference in use of LTVV also exists in operating room patients, and if present what factors drive this difference.DESIGN, PATIENTS AND SETTING: This is a posthoc analysis of LAS VEGAS, a 1-week worldwide observational study in adults requiring intra-operative ventilation during general anaesthesia for surgery in 146 hospitals in 29 countries.MAIN OUTCOME MEASURES: Women and men were compared with respect to use of LTVV, defined as VT of 8 ml kg-1 or less predicted bodyweight (PBW). A VT was deemed 'default' if the set VT was a round number. A mediation analysis assessed which factors may explain the sex difference in use of LTVV during intra-operative ventilation.RESULTS: This analysis includes 9864 patients, of whom 5425 (55%) were women. A default VT was often set, both in women and men; mode VT was 500 ml. Median [IQR] VT was higher in women than in men (8.6 [7.7 to 9.6] vs. 7.6 [6.8 to 8.4] ml kg-1 PBW, P < 0.001). Compared with men, women were twice as likely not to receive LTVV [68.8 vs. 36.0%; relative risk ratio 2.1 (95% CI 1.9 to 2.1), P < 0.001]. In the mediation analysis, patients' height and actual body weight (ABW) explained 81 and 18% of the sex difference in use of LTVV, respectively; it was not explained by the use of a default VT.CONCLUSION: In this worldwide cohort of patients receiving intra-operative ventilation during general anaesthesia for surgery, women received a higher VT than men during intra-operative ventilation. The risk for a female not to receive LTVV during surgery was double that of males. Height and ABW were the two mediators of the sex difference in use of LTVV.TRIAL REGISTRATION: The study was registered at Clinicaltrials.gov, NCT01601223

    INTRACEREBRAL TOXOPLASMA AND CRYPTOCOCCAL COINFECTION IN IMMUNOCOMPROMISED PATIENT WITH SISTEMIC LUPUS ERYTHEMATOSUS.

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    Objectives: Despite a significant increase in the survival rate of patients with systemic lupus erythematosus (SLE), opportunistic infections represent a significant cause of morbidity and mortality. Risk factors include immunosuppressive theraphies as well as some manifestations of active SLE itself. Clinicians need to be aware about the possibility of polymicrobial infections which may cause diagnostic and therapeutic delay. Methods: We report a case of intracerebral coinfection with Cryptococcus neoformans and Toxoplasma gondii in a 29-years-old man with SLE and congenital IgA deficit, under treatment with steroids. The patient, suffering from one week of fever, vomit and diarrhea, was admitted to our hospital for a syncopal episod following which did not regain consciousness. A neurological consultancy took over stiffness in all four limbs and lockjaw, coma with decortication reaction to painful stimuli, mydriatic pupils. Brain MRI with gadolinium contrast showed the presence of interhemispheric multiple focal lesions enhancement. Results: Cerebrospinal fluid (CSF) examinations revealed 24 white blood cells/μl, glucose 1 mg/dl and protein 266 mg/dl. An India-ink preparation of CSF disclosed mucinous capsule of Cryptococcus as a translucent halo surrounding budding yeast. A latex agglutination test was positive for cryptococcal antigen at a diluition of 1:4096 and CSF culture grew C. neoformans. HIV serology was negative but lymphocyte and CD4 lymphocyte count were 308/μl and 190/μl, respectively. CD4/CD8 ratio was 2.00. He was treated with liposomal amphotericin B (2 mg/kg/die) and dexamethasone (32 mg/die). Because of severe immunosuprression, other opportunistic pathogens were investigated. A qualitative in house PCR resulted positive for T. gondii DNA (B1 gene) in CSF, peripheral blood mononuclear cells and serum. Anamnestic T. gondii serology was negative. The therapeutic regimen was promptly strengthened with cotrimoxazole (20mg/kg/die+100mg/Kg/die), but a new CT scan demonstrated a diffuse cerebral swelling. Because of severe general impairment, the patient died two days later. Conclusions: Patients with severe SLE under immunosuppressive treatment with steroids may undergo acute infections including those from virus, common bacteria and Mycobacteria, fungi (i.e C. neoformans) and parasites (i.e T. gondii) which can occur alone or rarely in combination. In this regard, only one case of intracerebral coinfection with Burkholderia pseudomalley and C. neoformans has been recently described. To our knowledge, the presented case is the first describing an intracerebral coinfection with both C. neoformans and T. gondii in a patient with SLE. Monitoring CD4 lymphocyte count is highly recommended in patients with SLE under immunosuppressive treatment; if lower than 200/μl, they should assume cotrimoxazole prophylaxis, as HIV+ patients. In case of detection of brain lesions, rapid molecular diagnosis for more than one opportunistic infection should be taken into account as failure to timely recognition of coinfections may lead to insufficient treatment and affect outcome

    Percutaneous vertebroplasty and spinal cord compression: a case report

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    This report describes a 60-year-old woman with intensive back pain due to metastatic vertebral body collapse, who underwent percutaneous vertebroplasty. Subsequently, the patient developed metastatic lesion extrusion into the spinal canal because of pressure of the cement, with compression of the left anterolateral spinal cord. During percutaneous vertebroplasty procedure in patient with malignant tumors, the complication rate increases owing to the risk of leakage of cement resulting from the vertebral body destruction, but as also seen in our case, for the extrusion of the neoplastic tissue and increase of the pressure in the vertebral body due to the introduction of the cement

    amitriptyline poisoning from intravenous injection: clinical aspect and toxicokinetic data

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    none8amitripyline poisonining from intravenous injection: clinical aspect and toxicokinetic datanoneZoppellari R.; Osti D.; Pinamonti A.; Brunaldi V.; Antonelli T.;Locatelli C.; Avato F.M.; Guberti A.Zoppellari, Roberto; Osti, D.; Pinamonti, A.; Brunaldi, Vincenzo; Antonelli, T.; Locatelli, C.; Avato, Francesco Maria; Guberti, A

    intensitive care unit admission criteria in acute poisonings: a six-years study

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    none8intensitive care unit admission criteria in acute poisonings: a six-years studynoneZoppellari R.; Ferri F.; Osti D.; Shafiei P.; Massa F.; Brunaldi V.; Avato F.M.; Guberti A.Zoppellari, Roberto; Ferri, F.; Osti, D.; Shafiei, P.; Massa, F.; Brunaldi, Vincenzo; Avato, Francesco Maria; Guberti, A

    use of the intensive care unit in acute poisoning: a sevent-year analysis of 78 patients

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    none9use of the intensive care unit in acute poisoning: a sevent-year analysis of 78 patientsnoneZoppellari R.; Petrini S.; Ferri E.; Osti D.; Vason M.; Bianchi S.; Brunaldi V.; Avato F.M.; Mantovani G.Zoppellari, Roberto; Petrini, S.; Ferri, E.; Osti, D.; Vason, M.; Bianchi, S.; Brunaldi, Vincenzo; Avato, Francesco Maria; Mantovani, G
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