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S Corradini

Publications and source records attributed to S Corradini.

7 recordsLinked to original sources
PubMed1998

Toscana virus infections of the central nervous system in children: a report of 14 cases.

OBJECTIVE: To evaluate the pathogenicity of a recently discovered arthropod-transmitted bunyavirus (Toscana virus) on the CNS in children and to provide information on the epidemiologic and clinical aspects of Toscana virus infection. STUDY DESIGN: Case-series analysis of children hospitalized with clinical and cerebrospinal fluid examination compatible with a CNS disease of viral origin. METHODS: Cerebrospinal fluid, acute, and convalescent sera were investigated for conventional neurotropic viruses and for Toscana and tickborne encephalitis viruses. A clinical-epidemiologic analysis was carried out on confirmed Toscana virus cases to clarify the profile of Toscana virus infection in children. RESULTS: The study indicates that (1) Toscana virus has been endemic in the Siena province for at least 15 years; (2) the virus is responsible for at least 80% of acute viral infections of the CNS in children throughout the summertime; (3) the clinical signs and symptoms range from aseptic meningitis to meningoencephalitis; (4) infected children resided habitually or temporarily in rural or suburban areas of the Siena province, where ecological characteristics allow arthropods to be peridomestic in human settlements. CONCLUSIONS: Toscana virus is the most common viral agent involved in acute infections of CNS in children in central Italy.

Acute Disease↗
PubMed1997

Evidence of Toscana virus infections without central nervous system involvement: a serological study.

In central Italy, acute lymphocytic meningitis and meningoencephalitis due to a Phlebotomus transmitted virus (Phlebovirus Toscana, TOSv) occurring throughout the summer are frequently observed. Several serum specimens of patients hospitalized with a clinical picture of viral meningitis/meningoencephalitis showed anti TOS-IgG reactivity suggestive of a previous infection occurring at an unknown time in the past. This observation led us to design a serological investigation of 83 household contacts of 46 summertime CNS infection patients (index cases) with the purpose of evaluating the percentage of both IgG and IgM in seropositive healthy individuals, living, like the index cases, in areas at high risk of phlebotomine sandfly bites. The serological study was carried out using an ELISA method: 22% of the sera showed a reactivity for anti-TOS IgG antibodies and 6% resulted IgG/IgM positive; none of them reported having had any symptoms of CNS involvement; the distribution of seropositive cases was similar in contacts of both TOS-confirmed and TOS-negative cases. Our results indicate: (1) that phlebovirus Toscana is frequently implicated in cases with CNS disease as well as in infections occurring without neurological involvement; (2) in our country the ecological requirements encompass the conditions in and around the human settlements for phlebotomine sandflies to become peridomestic thus amplifying the risk of TOSv infections, which are in fact widespread and frequent in Siena and its surroundings.

Adolescent↗
PubMed1992

[Appendicitis: microbial interactions and new pathogens].

The Authors present an exhaustive review on microbial agents of appendicitis by means of literature and personal research data. Thus, a detailed analysis is made on common autochthonous agents and their pathogenetic interactions and on less common exogenous bacterial, viral, mycotic, protozoan and helminthic agents with emphasis to the role of Yersinia enterocolitica. In fact this bacterium seems responsible for 3% to 8% of cases in accordance with literature and personal research data (more detailed, Y. enterocolitica has been isolated in 3.8% of 208 inflamed appendices from both pediatric and adults surgical florentine patients). At the end, the pathogenetic role of "new" other bacteria, like Buttiauxella agrestis, Aeromonas hydrophila, Arizona, Streptococcus lactis, is debated on the basis of a personal study.

Acute Disease↗
PubMed1990

Oxygen tension monitoring in uremic patients during hemodialysis treatment.

The aim of this study was to evaluate the influence on cerebral and cutaneous vascular regions of PaO2 reduction during acetate dialysis, by monitoring conjunctival oxygen tension (PcjO2) and transcutaneous oxygen tension (PtcO2) during hemodialysis (HD) treatment. The study was performed on 23 patients with end-stage renal disease in chronic HD. All patients underwent dialytic treatment with cuprophan membranes and acetate containing dialysate. PcjO2 and PtcO2 were recorded and PaO2 and arterial carbon dioxide tension (PaCO2) were also measured. Results of the study show that hypoxemia during acetate dialysis with cuprophan membranes is not accompanied by changes of PcjO2 and therefore by changes in cerebral oxygenation. Moreover, PtcO2 remains constant during dialysis treatment. Furthermore, maintenance of normal oxygen tension at the conjunctival level is not obtained at the expense of the peripheral region of the skin.

Adult↗
PubMed1989

[Clinical evaluation of the efficacy of Ro 15-1788, Anexate after balanced intravenous anesthesia with flunitrazepam and fentanyl].

Benzodiazepines are widely used as neuroleptics in anaesthesia, but they give rise to drowsiness at the end of surgery. Anexate is an imidazobenzodiazepine with specific antagonistic activity for benzodiazepines. We have administered 0.2 mg i.v. of the drug to 20 adult patients after anaesthesia with tiopentale (250 mg), pancuronium bromide (0.07 mg.kg-1), flunitrazepam (2 mg) and fentanyl (0.10 mg); after the first dose fentanyl was administered (0.10 mg) about every 30 minute. Analgesia was supplemented with nitrous oxide 66%. Blood pressure and heart rate did not changes significantly after Anexate; respiratory volume increased significantly in all cases (ANOVA P less than 0.001). Consciousness was rapidly resumed in all cases and patients demonstrated to be oriented in time and space soon after Anexate. In 14 out of 20 patients drowsiness reappeared after about 30 minute and further doses of 0.1 mg of the drug (to a maximum of 0.4 mg in some cases) were necessary. Side effects were rare and slight, their occurrence depending on the speed of administration. In our opinion a total dose of 0.3 to 0.4 mg Anexate is need to fully antagonize the sedative effect of 2 mg flunitrazepam.

Adult↗
PubMedDate not supplied

[Schizophrenia and language disorders].

The speech of schizophrenics is idiosyncratic, possibly unrelated to thought disorders. Review of relevant literature indicates that schizophrenic speech disorders include: errors in the use of pronouns, articles, verbs and verb tenses, which are neither pointed out or corrected; absence of redundancy, skewering of the meaning of words, faulty establishment of common references with others. Sentences appear disjointed due to improvised vocabulary and the scant use of conjunctions and other linking words or phrases. Speech is slow, trite, and fails to convey information proportionate to speech production. Discourse is self-centered and the needs of others are ignored. In general, schizophrenic speech performance worsens the more ambiguous, intimate or complex the topic.

Communication↗